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Fong TCT, Cheung DYT, Choi EPH, Fong DYT, Ho RTH, Ip P, Kung MC, Lam MWC, Lee AM, Wong WCW, Lam TH, Yip PSF. Latent Heterogeneity of Online Sexual Experiences and Associations With Sexual Risk Behaviors and Behavioral Health Outcomes in Chinese Young Adults: Cross-Sectional Study. JMIR Public Health Surveill 2024; 10:e50020. [PMID: 38277190 PMCID: PMC10858424 DOI: 10.2196/50020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/07/2023] [Accepted: 12/14/2023] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND Online sexual experiences (OSEs) are becoming increasingly common in young adults, but existing papers have reported only on specific types of OSEs and have not shown the heterogeneous nature of the repertoire of OSEs. The use patterns of OSEs remain unclear, and the relationships of OSEs with sexual risk behaviors and behavioral health outcomes have not been evaluated. OBJECTIVE This study aimed to examine the latent heterogeneity of OSEs in young adults and the associations with sexual risk behaviors and behavioral health outcomes. METHODS The 2021 Youth Sexuality Study of the Hong Kong Family Planning Association phone interviewed a random sample of 1205 young adults in Hong Kong in 2022 (male sex: 613/1205, 50.9%; mean age 23.0 years, SD 2.86 years) on lifetime OSEs, demographic and family characteristics, Patient Health Questionnaire-4 (PHQ-4) scores, sex-related factors (sexual orientation, sex knowledge, and sexual risk behaviors), and behavioral health outcomes (sexually transmitted infections [STIs], drug use, and suicidal ideation) in the past year. Sample heterogeneity of OSEs was analyzed via latent class analysis with substantive checking of the class profiles. Structural equation modeling was used to examine the direct and indirect associations between the OSE class and behavioral health outcomes via sexual risk behaviors and PHQ-4 scores. RESULTS The data supported 3 latent classes of OSEs with measurement invariance by sex. In this study, 33.1% (398/1205), 56.0% (675/1205), and 10.9% (132/1205) of the sample were in the abstinent class (minimal OSEs), normative class (occasional OSEs), and active class (substantive OSEs), respectively. Male participants showed a lower prevalence of the abstinent class (131/613, 21.4% versus 263/592, 44.4%) and a higher prevalence of the active class (104/613, 17.0% versus 28/592, 4.7%) than female participants. The normative class showed significantly higher sex knowledge than the other 2 classes. The active class was associated with male sex, nonheterosexual status, higher sex desire and PHQ-4 scores, and more sexual risk behaviors than the other 2 classes. Compared with the nonactive (abstinent and normative) classes, the active class was indirectly associated with higher rates of STIs (absolute difference in percentage points [Δ]=4.8%; P=.03) and drug use (Δ=7.6%; P=.001) via sexual risk behaviors, and with higher rates of suicidal ideation (Δ=2.5%; P=.007) via PHQ-4 scores. CONCLUSIONS This study provided the first results on the 3 (abstinent, normative, and active) latent classes of OSEs with distinct profiles in OSEs, demographic and family characteristics, PHQ-4 scores, sex-related factors, and behavioral health outcomes. The active class showed indirect associations with higher rates of STIs and drug use via sexual risk behaviors and higher rates of suicidal ideation via PHQ-4 scores than the other 2 classes. These results have implications for the formulation and evaluation of targeted interventions to help young adults.
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Affiliation(s)
- Ted C T Fong
- Centre on Behavioral Health, Faculty of Social Sciences, The University of Hong Kong, Hong Kong, China (Hong Kong)
| | - Derek Yee Tak Cheung
- School of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China (Hong Kong)
| | - Edmond Pui Hang Choi
- School of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China (Hong Kong)
| | - Daniel Y T Fong
- School of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China (Hong Kong)
| | - Rainbow T H Ho
- Centre on Behavioral Health, Faculty of Social Sciences, The University of Hong Kong, Hong Kong, China (Hong Kong)
- Department of Social Work & Social Administration, Faculty of Social Sciences, The University of Hong Kong, Hong Kong, China (Hong Kong)
| | - Patrick Ip
- Department of Paediatrics & Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China (Hong Kong)
| | - Man Chun Kung
- Family Planning Association of Hong Kong, Hong Kong, China (Hong Kong)
| | | | - Antoinette Marie Lee
- Department of Psychology, Faculty of Social Sciences, The University of Hong Kong, Hong Kong, China (Hong Kong)
| | - William Chi Wai Wong
- Department of Family Medicine & Primary Care, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China (Hong Kong)
| | - Tai Hing Lam
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China (Hong Kong)
| | - Paul S F Yip
- Department of Social Work & Social Administration, Faculty of Social Sciences, The University of Hong Kong, Hong Kong, China (Hong Kong)
- Centre for Suicide Research and Prevention, Faculty of Social Sciences, The University of Hong Kong, Hong Kong, China (Hong Kong)
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Mulloy SM, Aback EM, Gao R, Engel S, Pawaskar K, Win C, Moua A, Hillukka L, Lee AM. Subregion and sex differences in ethanol activation of cholinergic and glutamatergic cells in the mesopontine tegmentum. Sci Rep 2024; 14:46. [PMID: 38168499 PMCID: PMC10762073 DOI: 10.1038/s41598-023-50526-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024] Open
Abstract
Ethanol engages cholinergic signaling and elicits endogenous acetylcholine release. Acetylcholine input to the midbrain originates from the mesopontine tegmentum (MPT), which is composed of the laterodorsal tegmentum (LDT) and the pedunculopontine tegmental nucleus (PPN). We investigated the effect of acute and chronic ethanol administration on cholinergic and glutamatergic neuron activation in the PPN and LDT in male and female mice. We show that ethanol activates neurons of the PPN and not the LDT in male mice. Chronic 15 daily injections of 2 g/kg ethanol induced Fos expression in cholinergic and glutamatergic PPN neurons in male mice, whereas ethanol did not increase cholinergic and glutamatergic neuronal activation in the LDT. A single acute 4 g/kg injection, but not a single 2 g/kg injection, induced cholinergic neuron activation in the male PPN but not the LDT. In contrast, acute or chronic ethanol at either dose or duration had no effect on the activation of cholinergic or glutamatergic neurons in the MPT of female mice. Female mice had higher baseline level of activation in cholinergic neurons compared with males. We also found a population of co-labeled cholinergic and glutamatergic neurons in the PPN and LDT which were highly active in the saline- and ethanol-treated groups in both sexes. These findings illustrate the complex differential effects of ethanol across dose, time point, MPT subregion and sex.
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Affiliation(s)
- S M Mulloy
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA
| | - E M Aback
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - R Gao
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - S Engel
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - K Pawaskar
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - C Win
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - A Moua
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - L Hillukka
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - A M Lee
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA.
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3
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Mulloy SM, Aback EM, Gao R, Engel S, Pawaskar K, Win C, Moua A, Hillukka L, Lee AM. Subregion and sex differences in ethanol activation of cholinergic and glutamatergic cells in the mesopontine tegmentum. bioRxiv 2023:2023.11.08.566053. [PMID: 38014248 PMCID: PMC10680559 DOI: 10.1101/2023.11.08.566053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Ethanol engages cholinergic signaling and elicits endogenous acetylcholine release. Acetylcholine input to the midbrain originates from the mesopontine tegmentum (MPT), which is composed of the laterodorsal tegmentum (LDT) and the pedunculopontine tegmental nucleus (PPN). We investigated the effect of acute and chronic ethanol administration on cholinergic and glutamatergic neuron activation in the PPN and LDT in male and female mice. We show that ethanol selectively activates neurons of the PPN and not the LDT in male mice. Acute 4.0 g/kg and chronic 15 daily injections of 2.0 g/kg i.p. ethanol induced Fos expression in cholinergic and glutamatergic PPN neurons in male mice, whereas cholinergic and glutamatergic neurons of the LDT were unresponsive. In contrast, acute or chronic ethanol at either dose or duration had no effect on the activation of cholinergic or glutamatergic neurons in the MPT of female mice. Female mice had higher level of baseline activation in cholinergic neurons compared with males. We also found a population of co-labeled cholinergic and glutamatergic neurons in the PPN and LDT which were highly active in the saline- and ethanol-treated groups in both sexes. These findings illustrate the complex differential effects of ethanol across dose, time point, MPT subregion and sex.
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Affiliation(s)
- S M Mulloy
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA
| | - E M Aback
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - R Gao
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - S Engel
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - K Pawaskar
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - C Win
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - A Moua
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - L Hillukka
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - A M Lee
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
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Banna FKE, Otto JM, Mulloy SM, Tsai W, McElroy SM, Wong AL, Cutts G, Vrieze SI, Lee AM. Back-translating GWAS findings to animal models reveals a role for Hgfac and Slc39a8 in alcohol and nicotine consumption. Sci Rep 2022; 12:9336. [PMID: 35661789 PMCID: PMC9167284 DOI: 10.1038/s41598-022-13283-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 05/23/2022] [Indexed: 11/09/2022] Open
Abstract
Alcohol and tobacco are the most commonly used addictive substances, with high comorbidity rates between alcohol use disorder and tobacco use disorder. Risk for alcohol and nicotine addiction is highly heritable, and they share common genetic factors. A GWAS in over 1 million individuals has revealed 566 genetic variants in 406 loci associated with multiple stages of alcohol and tobacco use. Three novel genes-SLC39A8, GRK4 and HGFAC-within loci associated with altered alcoholic drinks per week (ADW) or cigarettes per day (CPD) were selected to further study their role in alcohol and tobacco use disorder. The role of these genes was assessed using the two-bottle choice addiction paradigm in transgenic mice for each of the genes. We found significant decreases in chronic alcohol consumption and preference in female Hgfac knockout (KO) mice, and decreased nicotine preference in male Hgfac KO compared with wild-type (WT) mice. Additionally, male Slc39a8 hypomorph mice showed greater overall nicotine preference compared with WT mice, while no differences were detected for Grk4 KO mice in alcohol or nicotine consumption and preference in either sex. Thus, this study implicates Hgfac and Slc39a8 in alcohol and tobacco use in a sex-specific manner.
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Affiliation(s)
- F K El Banna
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA.,Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - J M Otto
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - S M Mulloy
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - W Tsai
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - S M McElroy
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - A L Wong
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - G Cutts
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - S I Vrieze
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - A M Lee
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA.
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Tan H, Nakovics H, Zeng H, Copello A, Akhtar S, Lee AM, Kiefer F, Vollstädt-Klein S. Assessment of automated craving across substances and across cultures: stability-analysis of the Craving Automated Scale (CAS). J Addict Dis 2021; 40:405-414. [PMID: 34967698 DOI: 10.1080/10550887.2021.2015053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND The transition from hedonic to compulsive use in Substance Use Disorders (SUD) is a critical point in SUD progression and hence relevant for assessment and treatment. To measure the habitual patterns of substance consumption, the Craving Automated Scales (CAS) for alcohol (CAS-A), substances (CAS-S) and cigarette smoking (CAS-CS) were developed and introduced to different countries. In this study, we aimed to investigate the structural stability of CAS across substances and cultures. METHODS This study analyzed the CAS-scores of a sample of 370 participants in Germany, China and the UK, including 262 opioid-users, 65 smokers and 43 alcohol-users. We performed stability analyses to check the stability (i. e. factorial invariance) of factor solutions. Based on confirmed stability of the general factor (gfactor) solution and the calculations rule obtained in the previous validation of CAS-alcohol (CAS-A), the factor structures of CAS-A, CAS-S and CAS-CS were compared. RESULTS The gfactor solutions based on calculations rule shows good stability, with the mean stability coefficients of 0.990 and 0.977 for CAS-S and CAS-CS respectively. The gfactor patterns were similar for CAS-A, CAS-S and CAS-CS, as well as across samples (Germany, China and the UK), with most factor-loadings larger than 0.7. Based on these findings, CAS-S and CAS-CS were also associated with established clinical measures of SUD. CONCLUSIONS Our findings suggest the two-gfactor solution based on a proposed calculation rule has a high stability across substances and cultures. This could be in line with common neurobiological mechanisms underlying habitual substance use. Moreover, comparing CAS with established clinical tools suggests that CAS might assess the automated behavior in substance consumption in a more sophisticated way.
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Affiliation(s)
- H Tan
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, Medical, Faculty of Mannheim, University of Heidelberg, Mannheim, Germany
| | - H Nakovics
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, Medical, Faculty of Mannheim, University of Heidelberg, Mannheim, Germany
| | - H Zeng
- Department of Psychology, Guangzhou University, Guangzhou, China
| | - A Copello
- School of Psychology, University of Birmingham, Birmingham, UK
| | - S Akhtar
- Birmingham and Solihull Mental Health Foundation Trust, Birmingham, UK
| | - A M Lee
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, Medical, Faculty of Mannheim, University of Heidelberg, Mannheim, Germany
| | - F Kiefer
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, Medical, Faculty of Mannheim, University of Heidelberg, Mannheim, Germany.,Feuerlein Center on Translational Addiction Medicine, University of Heidelberg, Heidelberg, Germany
| | - S Vollstädt-Klein
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, Medical, Faculty of Mannheim, University of Heidelberg, Mannheim, Germany.,Mannheim Center for Translational Neurosciences (MCTN), Medical Faculty of Mannheim, University of Heidelberg, Mannheim, Germany
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6
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Wong JYH, Ho JWC, Lee AM, Fong DYT, Chu N, Leung S, Chan YYW, Lam SH, Leung IPF, Macfarlane D, Cerin E, Taylor AJ, Cheng KK. Lived experience of dietary change among Chinese colorectal cancer survivors in Hong Kong: A qualitative study. BMJ Open 2021; 11:e051052. [PMID: 34433608 PMCID: PMC8388278 DOI: 10.1136/bmjopen-2021-051052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES This is a qualitative study which aims to understand the lived experience of dietary changes among Chinese survivors of colorectal cancer who participated in a dietary intervention. SETTING The surgical and oncological departments of four public hospitals in Hong Kong. PARTICIPANTS Fifty-five Chinese colorectal cancer survivors who were aged 18 years or above and had received potentially curative treatment in the surgical and oncological departments in Hong Kong were examined. Participants' mean age was 64 years, with 29 (53%) males. INTERVENTION A 12-month dietary intervention delivered via face-to-face motivational interviews, fortnightly motivational phone calls, monthly electronic pamphlets, quarterly newsletters and quarterly group meeting. OUTCOME MEASURE We adopted the qualitative approach to capture participants' perspectives and to apply the understanding pragmatically in everyday life. Content analysis was conducted. RESULTS We identified themes of motives to changes of dietary practices including (1) individual commitment to dietary change; (2) adaptive strategies in interpersonal contexts and (3) working with healthcare professionals during the journey. CONCLUSIONS The findings demonstrated how Chinese custom and culture posing unique challenges to colorectal cancer survivors and the need of having dietary advice from healthcare professionals. Participants were motivated to change their eating habits by support from family, friends and healthcare professionals. Our findings could help healthcare professionals provide specific dietary advice and guidance to Chinese colorectal cancer survivors. TRIAL REGISTRATION NUMBER NCT01708824.
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Affiliation(s)
- Janet Yuen Ha Wong
- School of Nursing, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Judy Wai Chu Ho
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Antoinette Marie Lee
- Department of Psychiatry, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Daniel Yee Tak Fong
- School of Nursing, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Natural Chu
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Sharron Leung
- Division of Nursing Education, Hong Kong Baptist University, Kowloon, Hong Kong
| | - Y Y Wynnie Chan
- School of Professional and Continuing Education, University of Hong Kong, Hong Kong, Hong Kong
| | - Sharon Hs Lam
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Ivy P F Leung
- Department of Dietetics, Queen Elizabeth Hospital, Hospital Authority Kowloon Central Cluster, Kowloon, Hong Kong
| | - Duncan Macfarlane
- Institute of Human Performance, University of Hong Kong, Hong Kong, Hong Kong
| | - Ester Cerin
- School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Aliki J Taylor
- Department of Public Health, Epidemiology and Biostatistics, University of Birmingham, Birmingham, UK
| | - Kar Keung Cheng
- Department of Public Health, Epidemiology and Biostatistics, University of Birmingham, Birmingham, UK
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Chan CY, Lee AM, Koh YW, Tang CSK. Validation of the Chinese version of the Pregnancy-related Anxiety Questionnaire-Revised (PRAQ-R) and its distinction from general anxiety and depression in pregnant women. J Psychosom Obstet Gynaecol 2020; 41:215-223. [PMID: 31290358 DOI: 10.1080/0167482x.2019.1639042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Objective: This study aims to evaluate the reliability and validity of the translated Chinese-Cantonese version of the Pregnancy-Related Anxiety Questionnaire-Revised (PRAQ-R) in a sample of pregnant women in Hong Kong, China. It also aims to determine whether pregnancy-related anxiety changes significantly across trimesters and if it is differentiated from general anxiety and depression.Method: This study adopts a prospective longitudinal design with a quantitative approach. A consecutive sample of 186 Chinese pregnant women from hospitals in Hong Kong are assessed using the translated Chinese-Cantonese version of the PRAQ-R and other standardized instruments at three time points during the first to third trimester.Results: A confirmatory factor analysis revealed a three-factor structure of the Chinese-Cantonese version of the PRAQ-R, including fear of giving birth, fear of bearing a physically or mentally handicapped child, and concern about one's appearance. The internal consistency was excellent (α = 0.88 to 0.91) for all of the items in the PRAQ-R across the three trimesters. The average variance extract (AVE) and composite reliability (CR) for each factor were greater than the recommended level of CR > 0.70 and AVE > 0.50. Multiple regression analyses showed that a combination of general anxiety and depression explained a small proportion of the variance (10-29%) in the PRAQ-R subscales during the three trimesters.Conclusions: The Chinese-Cantonese version of the PRAQ-R has good validity and reliability, and the results provide evidence of its relevance for Chinese pregnant women with pregnancy-related anxiety in Hong Kong. The finding also shows that pregnancy-related anxiety is a relatively distinctive form of anxiety that is different from general anxiety and depression.
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Affiliation(s)
- Chui Yi Chan
- Department of Psychiatry, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China.,The Felizberta Lo Padilla Tong School of Social Sciences, Caritas Institute of Higher Education, Hong Kong, China
| | - Antoinette Marie Lee
- Department of Psychiatry, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China.,Department of Psychology, The University of Hong Kong, Hong Kong, China
| | - Yee Woen Koh
- Department of Psychiatry, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China.,Center for Family and Population Research, National University of Singapore, Singapore, Singapore
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Wong AL, McElroy SM, Robinson JM, Mulloy SM, El Banna FK, Harris AC, LeSage MG, Lee AM. Flavor-specific enhancement of electronic cigarette liquid consumption and preference in mice. Drug Alcohol Depend 2020; 211:107995. [PMID: 32354580 PMCID: PMC7328293 DOI: 10.1016/j.drugalcdep.2020.107995] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 03/24/2020] [Accepted: 03/25/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND The use of electronic cigarettes has increased over the past decade. To determine how the abuse liability of electronic cigarette liquids (e-liquids) differs from nicotine alone, and to determine the impact of flavor, we compared nicotine-containing fruit- and tobacco-flavored e-liquids, and their nicotine-free versions, to nicotine alone in mouse models of oral consumption, reward and aversion. METHODS Adult male C57BL/6 J mice voluntarily consumed oral nicotine, equivalent nicotine concentrations of fruit- and tobacco-flavored e-liquid, and equivalent dilutions of the nicotine-free versions in 2-bottle choice tests. Conditioned place preference and place aversion were assessed with peripherally administered e-liquids or nicotine. Serum nicotine and cotinine levels were measured after subcutaneous injections of e-liquid or nicotine. RESULTS Mice showed higher consumption and preference for the fruit-flavored e-liquid compared with nicotine alone. This increase was not due to the flavor itself as consumption of the nicotine-free fruit-flavored e-liquid was not elevated until the highest concentration tested. The increased consumption and preference were not observed with the tobacco-flavored e-liquid. The conditioned place preference, place aversion and nicotine pharmacokinetics of the fruit-flavored e-liquid were not significantly different from nicotine alone. CONCLUSIONS Our data suggest that fruit, but not tobacco flavor, increased the oral consumption of e-liquid compared with nicotine alone. Moreover, this enhancement was not due to increased consumption of the flavor itself, altered rewarding or aversive properties after peripheral administration, or altered pharmacokinetics. This flavor-specific enhancement suggests that some flavors may lead to higher nicotine intake and increased use of e-liquids compared with nicotine alone.
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Affiliation(s)
- A L Wong
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - S M McElroy
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - J M Robinson
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - S M Mulloy
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA
| | - F K El Banna
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - A C Harris
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA; Department of Medicine, University of Minnesota, Minneapolis, MN, USA; Department of Medicine, Hennepin Healthcare Research Institute, Minneapolis, MN, USA; Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - M G LeSage
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA; Department of Medicine, Hennepin Healthcare Research Institute, Minneapolis, MN, USA; Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - A M Lee
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA; Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA.
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Chan CY, Lee AM, Koh YW, Lam SK, Lee CP, Leung KY, Tang CSK. Associations of body dissatisfaction with anxiety and depression in the pregnancy and postpartum periods: A longitudinal study. J Affect Disord 2020; 263:582-592. [PMID: 31744745 DOI: 10.1016/j.jad.2019.11.032] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/27/2019] [Accepted: 11/09/2019] [Indexed: 12/30/2022]
Abstract
BACKGROUND Pregnancy is a time of increasing vulnerability to the development of body dissatisfaction, anxiety, and depression. The present study aims to examine associations of body dissatisfaction with anxiety and depression at the following points: 6 months before pregnancy (retrospective report); in the first, second, and third trimesters of pregnancy; and up to 6 weeks postpartum. METHODS A prospective longitudinal design with a quantitative approach was adopted. A consecutive sample of 1,371 Chinese pregnant women in Hong Kong was assessed using standardized instruments at four time points. RESULTS A mixed-effects model with repeated measures revealed that body dissatisfaction and depression symptoms changed across different stages of pregnancy. Hierarchical multiple regressions showed that, after adjusting for the identified risk factors, body dissatisfaction before and during pregnancy were positively associated with antenatal anxiety and depression symptoms. Concurrent body dissatisfaction was positively associated with postpartum depression symptoms. LIMITATIONS There was a high attrition rate in the follow-up assessments. Antenatal anxiety symptoms were assessed using the scale for general anxiety, which may not adequately capture the experience of anxiety among pregnant women. CONCLUSIONS Primary healthcare practitioners should be made aware of body dissatisfaction among pregnant women in order to facilitate early intervention for anxiety and depression, because untreated psychological disturbance during pregnancy may persist into the postpartum period.
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Affiliation(s)
- Chui Yi Chan
- Department of Psychiatry, The University of Hong Kong, Hong Kong, China; The Felizberta Lo Padilla Tong School of Social Sciences, Caritas Institute of Higher Education, Hong Kong, China
| | - Antoinette Marie Lee
- Department of Psychiatry, The University of Hong Kong, Hong Kong, China; Department of Psychology, The University of Hong Kong, Hong Kong, China.
| | - Yee Woen Koh
- Department of Psychiatry, The University of Hong Kong, Hong Kong, China; Centre of Family and Population Research, The National University of Singapore, Singapore City, Singapore
| | - Siu Keung Lam
- Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong, China
| | - Chin Peng Lee
- Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong, China
| | - Kwok Yin Leung
- Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong, China
| | - Catherine So Kum Tang
- Department of Psychology, The National University of Singapore, Singapore City, Singapore
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10
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Lee AM, Sénéchal M, Hrubeniuk TJ, Bouchard DR. Is sitting time leading to mobility decline in long-term care residents? Aging Clin Exp Res 2020; 32:183-186. [PMID: 30778873 DOI: 10.1007/s40520-019-01148-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 02/11/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND Little is known about the sitting time in long-term care (LTC) facilities, or if sedentary behaviour affects changes in mobility over time. AIMS The objectives were to document the sitting time of LTC residents and to examine if sitting time could predict changes in mobility. METHODS Twenty residents of an LTC facility, representing three mobility statuses (independent, assisted transfer, and dependent transfer) were included. Sitting time was defined using an ActivPAL. Mobility statuses were reviewed 12 months later. RESULTS Participants spent an average of 21.9 h per day sedentary. At follow-up, five residents experienced a decline in mobility status, but no baseline sitting time variables were associated with the changes in mobility status (P > 0.05). DISCUSSION/CONCLUSION People living in LTC are highly sedentary. Sitting time differs amongst the mobility statues, but is unable to predict upcoming changes in mobility status.
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Affiliation(s)
- A M Lee
- Cardiometabolic Exercise and Lifestyle Laboratory, Fredericton, NB, Canada
- Faculty of Kinesiology, University of New Brunswick, 90 Mackay Drive, (Room 322), Fredericton, NB, E3B 5A3, Canada
| | - M Sénéchal
- Cardiometabolic Exercise and Lifestyle Laboratory, Fredericton, NB, Canada
- Faculty of Kinesiology, University of New Brunswick, 90 Mackay Drive, (Room 322), Fredericton, NB, E3B 5A3, Canada
| | - T J Hrubeniuk
- Cardiometabolic Exercise and Lifestyle Laboratory, Fredericton, NB, Canada
- Interdisciplinary Studies, University of New Brunswick, Fredericton, NB, Canada
| | - D R Bouchard
- Cardiometabolic Exercise and Lifestyle Laboratory, Fredericton, NB, Canada.
- Faculty of Kinesiology, University of New Brunswick, 90 Mackay Drive, (Room 322), Fredericton, NB, E3B 5A3, Canada.
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11
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Jensen MT, Fung K, Aung N, Sanghvi MM, Chadalavada S, Paiva JM, Khanji MY, De Knegt MC, Lukaschuk E, Lee AM, Carapella V, Piechnik SK, Neubauer S, Petersen SE. 347Early changes in cardiac morphology and function in individuals with diabetes and preserved ejection fraction detected by cardiovascular magnetic resonance tagging - The UK Biobank. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez103.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M T Jensen
- Barts and The London School of Medicine and Dentistry, London, United Kingdom of Great Britain & Northern Ireland
| | - K Fung
- Barts and The London School of Medicine and Dentistry, London, United Kingdom of Great Britain & Northern Ireland
| | - N Aung
- Barts and The London School of Medicine and Dentistry, London, United Kingdom of Great Britain & Northern Ireland
| | - M M Sanghvi
- Barts and The London School of Medicine and Dentistry, London, United Kingdom of Great Britain & Northern Ireland
| | - S Chadalavada
- Barts and The London School of Medicine and Dentistry, London, United Kingdom of Great Britain & Northern Ireland
| | - J M Paiva
- Barts and The London School of Medicine and Dentistry, London, United Kingdom of Great Britain & Northern Ireland
| | - M Y Khanji
- Barts and The London School of Medicine and Dentistry, London, United Kingdom of Great Britain & Northern Ireland
| | - M C De Knegt
- Barts and The London School of Medicine and Dentistry, London, United Kingdom of Great Britain & Northern Ireland
| | - E Lukaschuk
- John Radcliffe Hospital, Department of Cardiovascular Medicine, Oxford, United Kingdom of Great Britain & Northern Ireland
| | - A M Lee
- Barts and The London School of Medicine and Dentistry, London, United Kingdom of Great Britain & Northern Ireland
| | - V Carapella
- John Radcliffe Hospital, Department of Cardiovascular Medicine, Oxford, United Kingdom of Great Britain & Northern Ireland
| | - S K Piechnik
- John Radcliffe Hospital, Department of Cardiovascular Medicine, Oxford, United Kingdom of Great Britain & Northern Ireland
| | - S Neubauer
- John Radcliffe Hospital, Department of Cardiovascular Medicine, Oxford, United Kingdom of Great Britain & Northern Ireland
| | - S E Petersen
- Barts and The London School of Medicine and Dentistry, London, United Kingdom of Great Britain & Northern Ireland
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Aung N, Lee AM, Sanghvi MM, Fung K, Paiva JM, Thomson RJ, Khanji MY, Munro PB, Petersen SE. P622Automatic classification of CMR image sequences with convolutional neural networks. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez116.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- N Aung
- Queen Mary University of London, William Harvey Research Institute, London, United Kingdom of Great Britain & Northern Ireland
| | - A M Lee
- Queen Mary University of London, William Harvey Research Institute, London, United Kingdom of Great Britain & Northern Ireland
| | - M M Sanghvi
- Queen Mary University of London, William Harvey Research Institute, London, United Kingdom of Great Britain & Northern Ireland
| | - K Fung
- Queen Mary University of London, William Harvey Research Institute, London, United Kingdom of Great Britain & Northern Ireland
| | - J M Paiva
- Queen Mary University of London, William Harvey Research Institute, London, United Kingdom of Great Britain & Northern Ireland
| | - R J Thomson
- Queen Mary University of London, William Harvey Research Institute, London, United Kingdom of Great Britain & Northern Ireland
| | - M Y Khanji
- Queen Mary University of London, William Harvey Research Institute, London, United Kingdom of Great Britain & Northern Ireland
| | - P B Munro
- Queen Mary University of London, William Harvey Research Institute, London, United Kingdom of Great Britain & Northern Ireland
| | - S E Petersen
- Queen Mary University of London, William Harvey Research Institute, London, United Kingdom of Great Britain & Northern Ireland
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13
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Raisi-Estabragh Z, Fung K, Aung N, Sanghvi M, Paiva J, Khanji M, Lukaschuk E, Lee AM, Carapella V, Piechnik S, Neubauer S, Harvey N, Petersen SE. P149Measures of bone quality are associated with aortic distensibility. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez117.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Z Raisi-Estabragh
- Queen Mary University of London, William Harvey research institute, London, United Kingdom of Great Britain & Northern Ireland
| | - K Fung
- Queen Mary University of London, William Harvey research institute, London, United Kingdom of Great Britain & Northern Ireland
| | - N Aung
- Queen Mary University of London, William Harvey research institute, London, United Kingdom of Great Britain & Northern Ireland
| | - M Sanghvi
- Queen Mary University of London, William Harvey research institute, London, United Kingdom of Great Britain & Northern Ireland
| | - J Paiva
- Queen Mary University of London, William Harvey research institute, London, United Kingdom of Great Britain & Northern Ireland
| | - M Khanji
- Queen Mary University of London, William Harvey research institute, London, United Kingdom of Great Britain & Northern Ireland
| | - E Lukaschuk
- University of Oxford Centre for Clinical Magnetic Resonance Research, Oxford, United Kingdom of Great Britain & Northern Ireland
| | - A M Lee
- Queen Mary University of London, William Harvey research institute, London, United Kingdom of Great Britain & Northern Ireland
| | - V Carapella
- University of Oxford Centre for Clinical Magnetic Resonance Research, Oxford, United Kingdom of Great Britain & Northern Ireland
| | - S Piechnik
- University of Oxford Centre for Clinical Magnetic Resonance Research, Oxford, United Kingdom of Great Britain & Northern Ireland
| | - S Neubauer
- University of Oxford Centre for Clinical Magnetic Resonance Research, Oxford, United Kingdom of Great Britain & Northern Ireland
| | - N Harvey
- University of Southampton, Southampton, United Kingdom of Great Britain & Northern Ireland
| | - S E Petersen
- Queen Mary University of London, William Harvey research institute, London, United Kingdom of Great Britain & Northern Ireland
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14
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Lencer R, Mills LJ, Alliey-Rodriguez N, Shafee R, Lee AM, Reilly JL, Sprenger A, McDowell JE, McCarroll SA, Keshavan MS, Pearlson GD, Tamminga CA, Clementz BA, Gershon ES, Sweeney JA, Bishop JR. Genome-wide association studies of smooth pursuit and antisaccade eye movements in psychotic disorders: findings from the B-SNIP study. Transl Psychiatry 2017; 7:e1249. [PMID: 29064472 PMCID: PMC5682604 DOI: 10.1038/tp.2017.210] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 07/14/2017] [Indexed: 02/07/2023] Open
Abstract
Eye movement deviations, particularly deficits of initial sensorimotor processing and sustained pursuit maintenance, and antisaccade inhibition errors, are established intermediate phenotypes for psychotic disorders. We here studied eye movement measures of 849 participants from the Bipolar-Schizophrenia Network on Intermediate Phenotypes (B-SNIP) study (schizophrenia N=230, schizoaffective disorder N=155, psychotic bipolar disorder N=206 and healthy controls N=258) as quantitative phenotypes in relation to genetic data, while controlling for genetically derived ancestry measures, age and sex. A mixed-modeling genome-wide association studies approach was used including ~4.4 million genotypes (PsychChip and 1000 Genomes imputation). Across participants, sensorimotor processing at pursuit initiation was significantly associated with a single nucleotide polymorphism in IPO8 (12p11.21, P=8 × 10-11), whereas suggestive associations with sustained pursuit maintenance were identified with SNPs in SH3GL2 (9p22.2, P=3 × 10-8). In participants of predominantly African ancestry, sensorimotor processing was also significantly associated with SNPs in PCDH12 (5q31.3, P=1.6 × 10-10), and suggestive associations were observed with NRSN1 (6p22.3, P=5.4 × 10-8) and LMO7 (13q22.2, P=7.3x10-8), whereas antisaccade error rate was significantly associated with a non-coding region at chromosome 7 (P=6.5 × 10-9). Exploratory pathway analyses revealed associations with nervous system development and function for 40 top genes with sensorimotor processing and pursuit maintenance (P=4.9 × 10-2-9.8 × 10-4). Our findings suggest novel patterns of genetic variation relevant for brain systems subserving eye movement control known to be impaired in psychotic disorders. They include genes involved in nuclear trafficking and gene silencing (IPO8), fast axonal guidance and synaptic specificity (PCDH12), transduction of nerve signals (NRSN1), retinal degeneration (LMO7), synaptic glutamate release (SH3GL2), and broader nervous system development and function.
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Affiliation(s)
- R Lencer
- Department of Psychiatry and Psychotherapy, Otto Creutzfeldt Center for Cognitive and Behavioral Neuroscience, University of Muenster, Muenster, Germany
| | - L J Mills
- Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, MN, USA
| | - N Alliey-Rodriguez
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA
| | - R Shafee
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - A M Lee
- Department of Experimental and Clinical Pharmacology, College of Pharmacy, University of Minnesota, Minneapolis, MN, USA
| | - J L Reilly
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - A Sprenger
- Department of Neurology, University of Luebeck, Luebeck, Germany
| | - J E McDowell
- Department of Psychology and Neuroscience, BioImaging Research Center, University of Georgia, Athens, GA, USA
| | - S A McCarroll
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - M S Keshavan
- Department of Psychiatry, Harvard Medical School, Beth Israel Deacones Medical Center, Boston, MA, USA
| | - G D Pearlson
- Departments of Psychiatry and Neurobiology, Yale University School of Medicine, New Haven, CT, USA
- Institute of Living, Hartford Hospital, Hartford, CT, USA
| | - C A Tamminga
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - B A Clementz
- Department of Psychology and Neuroscience, BioImaging Research Center, University of Georgia, Athens, GA, USA
| | - E S Gershon
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA
| | - J A Sweeney
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati, Cincinnati, OH, USA
| | - J R Bishop
- Department of Experimental and Clinical Pharmacology, College of Pharmacy, University of Minnesota, Minneapolis, MN, USA
- Department of Psychiatry, University of Minnesota College of Medicine, Minneapolis, MN, USA
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15
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Nie Q, Shrestha S, Tapper EE, Trogstad-Isaacson CS, Bouchonville KJ, Lee AM, Wu R, Jerde CR, Wang Z, Kubica PA, Offer SM, Diasio RB. Quantitative Contribution of rs75017182 to Dihydropyrimidine Dehydrogenase mRNA Splicing and Enzyme Activity. Clin Pharmacol Ther 2017; 102:662-670. [PMID: 28295243 DOI: 10.1002/cpt.685] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 02/28/2017] [Accepted: 03/01/2017] [Indexed: 12/12/2022]
Abstract
Dihydropyrimidine dehydrogenase (DPD; DPYD gene) variants have emerged as reliable predictors of adverse toxicity to the chemotherapy agent 5-fluorouracil (5-FU). The intronic DPYD variant rs75017182 has been recently suggested to promote alternative splicing of DPYD. However, both the extent of alternative splicing and the true contribution of rs75017182 to DPD function remain unclear. In the present study we quantified alternative splicing and DPD enzyme activity in rs75017182 carriers utilizing healthy volunteer specimens from the Mayo Clinic Biobank. Although the alternatively spliced transcript was uniquely detected in rs75017182 carriers, canonically spliced DPYD levels were only reduced by 30% (P = 2.8 × 10-6 ) relative to controls. Similarly, DPD enzyme function was reduced by 35% (P = 0.025). Carriers of the well-studied toxicity-associated variant rs67376798 displayed similar reductions in DPD activity (31% reduction). The modest effects on splicing and function suggest that rs75017182 may have clinical utility as a predictor of 5-FU toxicity similar to rs67376798.
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Affiliation(s)
- Q Nie
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA
| | - S Shrestha
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA
| | - E E Tapper
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA
| | - C S Trogstad-Isaacson
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA
| | - K J Bouchonville
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA
| | - A M Lee
- Department of Experimental and Clinical Pharmacology, University of Minnesota, Minneapolis, Minnesota, USA
| | - R Wu
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA
| | - C R Jerde
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA.,Mayo Clinic Cancer Center, Rochester, Minnesota, USA
| | - Z Wang
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA
| | - P A Kubica
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA
| | - S M Offer
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA.,Mayo Clinic College of Medicine, Mayo Clinic, 200 1st St. SW, Rochester, Minnesota, USA
| | - R B Diasio
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA.,Mayo Clinic Cancer Center, Rochester, Minnesota, USA.,Mayo Clinic College of Medicine, Mayo Clinic, 200 1st St. SW, Rochester, Minnesota, USA
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16
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Lee AM, Lee MJ. Radiation safety awareness among medical interns: are EU guidelines being implemented? Ir J Med Sci 2016; 186:547-553. [PMID: 27844336 DOI: 10.1007/s11845-016-1530-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 11/03/2016] [Indexed: 12/31/2022]
Abstract
BACKGROUND European recommendations suggest that medical students should be taught radiation safety before entering clinical practice. AIM The aim of this study was to produce a summative assessment of radiation protection training in medical school in Ireland. MATERIALS AND METHODS A web-based questionnaire was distributed to the 2014 intern population (n = 683) via network intern-coordinators. The survey encompassed knowledge of radiation dose in X-ray investigations, laws governing the prescribing of radiation and complications of radiation exposure to staff and patients. RESULTS Response rate was 14.2% (97/683) with all Irish medical schools represented. 64% of interns reported no formal training in radiation safety. 80% correctly identified MRI and 94% US as not posing a radiation risk. 54% identified CT PET as emitting the highest radiation dose to patients. Only 32% correctly identified one CT abdomen/pelvis as equivalent to the dose from 300 to 500 chest X-rays and 22% correctly identified the theoretical lifetime risk of cancer induction from CT abdomen/pelvis as 1 in 2000. While 71% thought it was very important that prescribers should be aware of patient radiation dose and 28% thought it was moderately important, 74% were not aware of any laws governing the prescribing of radiology investigations. CONCLUSION Currently, there is little formal radiation safety training in Irish medical schools. Knowledge of radiation dose and the laws governing prescribing is limited among qualifying interns. Implementation of a formal radiation safety curriculum in Irish Medical Schools would adhere to EU guidelines and improve prescriber knowledge, patient, and personal radiation safety.
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Affiliation(s)
- A M Lee
- Department of Imaging and Interventional Radiology, Royal College of Surgeons, Beaumont Hospital, Dublin 9, Ireland
| | - M J Lee
- Department of Imaging and Interventional Radiology, Royal College of Surgeons, Beaumont Hospital, Dublin 9, Ireland.
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17
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Asadi H, Lee RJ, Sheehan M, Thanaratam P, Lee DM, Lee AM, Lee MJ. Endovascular Therapy Research in Lower Limb Peripheral Arterial Disease Published Over a 5-Year Period: Who is Publishing and Where? Cardiovasc Intervent Radiol 2016; 40:343-350. [PMID: 27844109 DOI: 10.1007/s00270-016-1504-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 11/04/2016] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Peripheral arterial disease (PAD) is being increasingly managed by endovascular therapies. In this study, we identified the clinical services publishing research as well as the journals of publication over a 5-year period. METHODS Twenty keywords and phrases related to endovascular intervention were identified, and a literature search was performed through the PubMed database from January 2009 to January 2014. Inclusion criteria were English language, study population more than five patients, and matching the keyword search. Eligible studies were collated into a database and classified by journal of publication, PubMed number, article title, publishing clinical service, type of publication, country of origin, and authors. RESULTS 825 studies from 114 different journals were identified. 297 papers were excluded. Of the 528 included papers, 204 (39%) were published by Vascular Surgery (VS), 157 (30%) by Interventional Radiology (IR), 101 (19%) by Cardiology, 43 (8%) by Angiology, 6 (1%) by Vascular Medicine, and 17 (3%) from miscellaneous services. 283 (54%) studies originated from Europe, 157 (30%) from North America, 76 (14%) from Asia, 6 from Australia, 3 each from South America and Africa. IR published the most papers on PAD endovascular intervention in Europe with VS second while this trend was reversed in the USA. The 528 papers were published in 98 different journals with retrospective case series (72%), the majority. CONCLUSION IR continues to play a significant research role in endovascular intervention in PAD, particularly in Europe, and specifically in below the knee intervention, pedal intervention, and drug-eluting technologies.
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Affiliation(s)
- H Asadi
- Interventional Radiology Service, Department of Radiology, Royal College of Surgeons in Ireland Medical School, Beaumont Hospital, Dublin, Ireland
| | - R J Lee
- Interventional Radiology Service, Department of Radiology, Royal College of Surgeons in Ireland Medical School, Beaumont Hospital, Dublin, Ireland
| | - M Sheehan
- Interventional Radiology Service, Department of Radiology, Royal College of Surgeons in Ireland Medical School, Beaumont Hospital, Dublin, Ireland
| | - P Thanaratam
- Interventional Radiology Service, Department of Radiology, Royal College of Surgeons in Ireland Medical School, Beaumont Hospital, Dublin, Ireland
| | - D M Lee
- Interventional Radiology Service, Department of Radiology, Royal College of Surgeons in Ireland Medical School, Beaumont Hospital, Dublin, Ireland
| | - A M Lee
- Interventional Radiology Service, Department of Radiology, Royal College of Surgeons in Ireland Medical School, Beaumont Hospital, Dublin, Ireland
| | - M J Lee
- Interventional Radiology Service, Department of Radiology, Royal College of Surgeons in Ireland Medical School, Beaumont Hospital, Dublin, Ireland.
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Leung SSK, Lee AM, Wong DFK, Wong CM, Leung KY, Chiang VCL, Yung WK, Chan SWC, Chung KF. A brief group intervention using a cognitive-behavioural approach to reduce postnatal depressive symptoms: a randomised controlled trial. Hong Kong Med J 2016; 22 Suppl 2:S4-S8. [PMID: 26908335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Affiliation(s)
- S S K Leung
- Institute of Professional Education, Hong Kong Baptist Hospital
| | - A M Lee
- Department of Psychiatry, The University of Hong Kong
| | - D F K Wong
- Department of Social Work and Social Administration, The City University of Hong Kong
| | - C M Wong
- Department of Community Medicine, The University of Hong Kong
| | - K Y Leung
- Department of Obstetric & Gynaecology, Queen Elizabeth Hospital, Hong Kong
| | - V C L Chiang
- School of Nursing, Hong Kong Polytechnic University
| | - W K Yung
- Department of Obstetric & Gynaecology, Kwong Wah Hospital, Hong Kong
| | - S W C Chan
- Alice Lee Centre for Nursing Studies, National University of Singapore
| | - K F Chung
- Department of Psychiatry, The University of Hong Kong
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Yang L, Tang H, Lee AM, Zou Y, Huang X, Tang X, Bai HX. Risk of Malignancy in Symptomatic Nodular Goiter Treated with Radiofrequency Ablation. AJNR Am J Neuroradiol 2016; 37:E7-8. [PMID: 26585266 DOI: 10.3174/ajnr.a4580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- L Yang
- Department of Neurology The Second Xiangya Hospital of Central South University Changsha, China
| | - H Tang
- Department of Radiology The First Xiangya Hospital of Central South University Changsha, China
| | - A M Lee
- Department of Radiology Hospital of the University of Pennsylvania Philadelphia, Pennsylvania
| | - Y Zou
- Department of Neurology The Second Xiangya Hospital of Central South University Changsha, China
| | - X Huang
- Department of Neurology The Second Xiangya Hospital of Central South University Changsha, China
| | - X Tang
- Department of Neurology The Second Xiangya Hospital of Central South University Changsha, China
| | - H X Bai
- Department of Radiology Hospital of the University of Pennsylvania Philadelphia, Pennsylvania
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20
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Koh YW, Lee AM, Chan CY, Fong DYT, Lee CP, Leung KY, Tang CSK. Survey on examining prevalence of paternal anxiety and its risk factors in perinatal period in Hong Kong: a longitudinal study. BMC Public Health 2015; 15:1131. [PMID: 26572228 PMCID: PMC4647473 DOI: 10.1186/s12889-015-2436-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 10/20/2015] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND There is emerging evidence of the significance of paternal mental health problems among the expectant fathers during the antenatal and postnatal period. The present study aims at determining the prevalence of paternal perinatal anxiety and identifying its risk factors among the fathers. METHODS A total of 622 expectant fathers were recruited in Hong Kong. The expectant fathers were assessed using standardized and validated psychological instruments on three time points including early pregnancy, late pregnancy and 6 week postnatal. Independent samples t-test, one way ANOVA, Pearson's correlation and multiple linear regression were used to examine the effect of hypothesized risk factors. Hierarchical multiple regression and mixed effect model were also conducted with potential confounding factors controlled for. RESULTS Results showed that a significant proportion of expectant fathers experienced anxiety during the perinatal period. Low self-esteem and poor social support were found to be risk factors of paternal anxiety across pregnancy to postnatal period. Work-family conflict could significantly predict paternal anxiety in the pregnancy period. CONCLUSIONS The present study points to the need for greater research and clinical attention to paternal anxiety, given that it is a highly prevalent problem and could be detrimental to their partner's well-being and children development. The present findings contributes to the theoretical understanding of the prevalence and risk factors of paternal perinatal anxiety and have implications for the design of effective identification, prevention, and interventions of these clinical problems.
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Affiliation(s)
- Y W Koh
- Department of Psychiatry, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong.
| | - A M Lee
- Department of Psychiatry, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong.
| | - C Y Chan
- Department of Psychiatry, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong.
| | - D Y T Fong
- School of Nursing, The University of Hong Kong, Pokfulam, Hong Kong.
| | - C P Lee
- Department of Obstetrics & Gynaecology, The University of Hong Kong, Pokfulam, Hong Kong.
| | - K Y Leung
- Department of Obstetrics & Gynaecology, The University of Hong Kong, Pokfulam, Hong Kong.
| | - C S K Tang
- National University of Singapore, Singapore, Singapore.
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21
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Lee AM, Wu DF, Dadgar J, Wang D, McMahon T, Messing RO. PKCε phosphorylates α4β2 nicotinic ACh receptors and promotes recovery from desensitization. Br J Pharmacol 2015; 172:4430-41. [PMID: 26103136 DOI: 10.1111/bph.13228] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Revised: 06/10/2015] [Accepted: 06/13/2015] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND AND PURPOSE Nicotinic (ACh) receptor recovery from desensitization is modulated by PKC, but the PKC isozymes and the phosphorylation sites involved have not been identified. We investigated whether PKCε phosphorylation of α4β2 nAChRs regulates receptor recovery from desensitization. EXPERIMENTAL APPROACH Receptor recovery from desensitization was investigated by electrophysiological characterization of human α4β2 nAChRs. Phosphorylation of the α4 nAChR subunit was assessed by immunoblotting of mouse synaptosomes. Hypothermia induced by sazetidine-A and nicotine was measured in Prkce(-/-) and wild-type mice. KEY RESULTS Inhibiting PKCε impaired the magnitude of α4β2 nAChR recovery from desensitization. We identified five putative PKCε phosphorylation sites in the large intracellular loop of the α4 subunit, and mutating four sites to alanines also impaired recovery from desensitization. α4 nAChR subunit phosphorylation was reduced in synaptosomes from Prkce(-/-) mice. Sazetidine-A-induced hypothermia, which is mediated by α4β2 nAChR desensitization, was more severe and prolonged in Prkce(-/-) than in wild-type mice. CONCLUSIONS AND IMPLICATIONS PKCε phosphorylates the α4 nAChR subunit and regulates recovery from receptor desensitization. This study illustrates the importance of phosphorylation in regulating α4β2 receptor function, and suggests that reducing phosphorylation prolongs receptor desensitization and decreases the number of receptors available for activation.
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Affiliation(s)
- A M Lee
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - D-F Wu
- Division of Pharmacology and Toxicology, College of Pharmacy, University of Texas at Austin, Austin, TX, USA
| | - J Dadgar
- Division of Pharmacology and Toxicology, College of Pharmacy, University of Texas at Austin, Austin, TX, USA
| | - D Wang
- Ernest Gallo Clinic and Research Center, University of California at San Francisco, Emeryville, CA, USA
| | - T McMahon
- Ernest Gallo Clinic and Research Center, University of California at San Francisco, Emeryville, CA, USA
| | - R O Messing
- Division of Pharmacology and Toxicology, College of Pharmacy, University of Texas at Austin, Austin, TX, USA
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Yip PSF, Zhang H, Lam TH, Lam KF, Lee AM, Chan J, Fan S. Sex knowledge, attitudes, and high-risk sexual behaviors among unmarried youth in Hong Kong. BMC Public Health 2013; 13:691. [PMID: 23895326 PMCID: PMC3729422 DOI: 10.1186/1471-2458-13-691] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Accepted: 07/23/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Little is known about sex knowledge, attitudes, and high-risk sexual behaviors among unmarried youth in Hong Kong. It is of public health importance to investigate this topic to inform sex education, policymaking, and prevention and intervention programs. METHODS Based on the Youth Sexuality Survey conducted by Hong Kong Family Planning Association (FPAHK) in 2011, this study explored the characteristics of sexual knowledge, attitudes, and high-risk sexual behaviors among 1,126 unmarried youth aged 18 to 27 years. Multiple logistic regressions were performed to examine factors associated with unmarried youth's premarital sex, casual relationships, multiple sex partners, and premarital pregnancy. RESULTS Unmarried youth in Hong Kong had adequate sex knowledge, but contraceptive knowledge was deficient. The majority of unmarried youth (63.8%) held liberal attitudes toward premarital sex and about half held liberal attitudes toward any form of sexual activity and premarital pregnancy. Around 60% held conservative attitudes toward causal sex relationships and multiple sex partners. Males tended to hold more liberal attitudes toward high-risk sex behaviors than female youth. Approximately 41.5% of unmarried youth reported having engaged in premarital sex, whereas less than 10% engaged in high-risk sexual behaviors. Males also reported higher amounts of premarital sex, casual sex relationships, and multiple sex partners. Females reported higher levels of sexual coercion. Logistic regressions indicated that being older, coming from a divorced family, out of school status and liberal attitudes toward risky sex behavior were more likely to engage in premarital sex or high-risk sex behaviors, and being female, being better educated and being immigrants were less likely to engage in premarital sex. However, being immigrants was more likely to engage in casual relationship and to have multiple partners. CONCLUSIONS Premarital sex is becoming more prevalent among unmarried youth in Hong Kong, and a small proportion of young adults are engaging in high-risk sexual behaviors. Sex education and HIV prevention programs should equip them with adequate knowledge on contraception and condom use. Intervention programs can start with their attitudes toward sex.
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Affiliation(s)
- Paul S F Yip
- Department of Social Work and Social Administration, The University of Hong Kong, Hong Kong, Hong Kong.
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Cheung YTD, Wong PWC, Lee AM, Lam TH, Fan YSS, Yip PSF. Non-suicidal self-injury and suicidal behavior: prevalence, co-occurrence, and correlates of suicide among adolescents in Hong Kong. Soc Psychiatry Psychiatr Epidemiol 2013; 48:1133-44. [PMID: 23262815 DOI: 10.1007/s00127-012-0640-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Accepted: 12/05/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND Despite increasing concern over the prevalence of non-suicidal self-injury (NSSI) among adolescents, there is debate about its classification as a stand-alone psychiatric diagnosis. This study investigated the patterns, co-occurrence, and correlates of NSSI and other suicidal behaviors among a representative community sample of in-school adolescents. METHODS A cross-sectional survey of 2,317 adolescents was conducted. Participants were asked to self-report NSSI, suicidal ideation, suicide attempt, and psychosocial conditions over the past 12 months. Logistic regression and cumulative logit modeling analyses were conducted to investigate the different and similar correlates among these self-harm behaviors. RESULTS The age-standardized prevalence rates of NSSI among male and female adolescents were estimated to be 13.4 and 19.7 %, respectively, compared with 11.1 and 10.1 % for male and female suicide attempt. Only a small proportion engaged in NSSI exclusively in the past year. NSSI by burning or reckless and risky behaviors, frequent drinking, and sexual experience were associated with increasing severity level of suicidal behaviors among individuals with NSSI. CONCLUSIONS NSSI is prevalent among in-school adolescents in Hong Kong. However, it co-occurs with suicidal ideation and suicide attempt. High lethality of NSSI, frequent drinking habit, and lifetime sexual experience are suggested to be indicators for screening potential suicide attempters among those having NSSI.
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Affiliation(s)
- Yee Tak Derek Cheung
- School of Public Health, The University of Hong Kong, Hong Kong SAR, People's Republic of China
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24
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Chan CY, Lee AM, Lam SK, Lee CP, Leung KY, Koh YW, Tang CSK. Antenatal anxiety in the first trimester: Risk factors and effects on anxiety and depression in the third trimester and 6-week postpartum. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ojpsych.2013.33030] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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Lee AM, Berny-Lang MA, Liao S, Kanso E, Kuhn P, McCarty OJT, Newton PK. A low-dimensional deformation model for cancer cells in flow. Phys Fluids (1994) 2012; 24:81903. [PMID: 23024578 PMCID: PMC3443115 DOI: 10.1063/1.4748811] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Accepted: 07/30/2012] [Indexed: 06/01/2023]
Abstract
A low-dimensional parametric deformation model of a cancer cell under shear flow is developed. The model is built around an experiment in which MDA-MB-231 adherent cells are subjected to flow with increasing shear. The cell surface deformation is imaged using differential interference contrast microscopy imaging techniques until the cell releases into the flow. We post-process the time sequence of images using an active shape model from which we obtain the principal components of deformation. These principal components are then used to obtain the parameters in an empirical constitutive equation determining the cell deformations as a function of the fluid normal and shear forces imparted. The cell surface is modeled as a 2D Gaussian interface which can be deformed with three active parameters: H (height), σ(x) (x-width), and σ(y) (y-width). Fluid forces are calculated on the cell surface by discretizing the surface with regularized Stokeslets, and the flow is driven by a stochastically fluctuating pressure gradient. The Stokeslet strengths are obtained so that viscous boundary conditions are enforced on the surface of the cell and the surrounding plate. We show that the low-dimensional model is able to capture the principal deformations of the cell reasonably well and argue that active shape models can be exploited further as a useful tool to bridge the gap between experiments, models, and numerical simulations in this biological setting.
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Affiliation(s)
- A M Lee
- Department of Aerospace & Mechanical Engineering and Department of Mathematics, University of Southern California, Los Angeles, California 90089-1191, USA
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26
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Cheung YTD, Lee AM, Ho SY, Li ETS, Lam TH, Fan SYS, Yip PSF. Who wants a slimmer body? The relationship between body weight status, education level and body shape dissatisfaction among young adults in Hong Kong. BMC Public Health 2011; 11:835. [PMID: 22039977 PMCID: PMC3305917 DOI: 10.1186/1471-2458-11-835] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Accepted: 10/31/2011] [Indexed: 02/07/2023] Open
Abstract
Background Body shape dissatisfaction has been thought to have an indispensable impact on weight control behaviors. We investigated the prevalence of body shape dissatisfaction (BSD) and explored its association with weight status, education level and other determinants among young adults in Hong Kong. Methods Information on anthropometry, BSD, and socio-demographics was collected from a random sample of 1205 young adults (611 men and 594 women) aged 18-27 in a community-based household survey. BSD was defined as a discrepancy between current and ideal body shape based on a figure rating scale. Cross-tabulations, homogeneity tests and logistic regression models were applied. Results The percentages of underweight men and women were 16.5% and 34.9% respectively, and the corresponding percentages of being overweight or obese were 26.7% and 13.2% for men and women respectively. Three-quarters of young adults had BSD. Among women, 30.9% of those underweight and 75.5% of those with normal weight desired a slimmer body shape. Overweight men and underweight women with lower education level were more likely to have a mismatch between weight status and BSD than those with higher education level. After controlling for other determinants, underweight women were found to have a higher likelihood to maintain their current body shapes than other women. Men were found to be less likely to have a mismatch between weight status and BSD than women. Conclusions Overweight and obesity in men and underweight in women were prevalent among Hong Kong young adults. Inappropriate body shape desire might predispose individuals to unhealthy weight loss or gain behaviors. Careful consideration of actual weight status in body shape desire is needed in health promotion and education, especially for underweight and normal weight women and those with a low education level.
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Affiliation(s)
- Yee Tak Derek Cheung
- Centre for Health Policy, Programs and Economics, School of PopulationHealth, The University of Melbourne, Melbourne, Australia
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27
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Lee AM, Ho JWC, Chan CLW. Efficacy of psychosocial intervention in improving quality of life and psychological well-being of Chinese patients with colorectal cancer: a randomised controlled trial. Hong Kong Med J 2010; 16 Suppl 3:20-24. [PMID: 20601729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Affiliation(s)
- A M Lee
- Department of Psychiatry, The University of Hong Kong, Hong Kong SAR, China.
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Davies AJ, Lee AM, Taylor C, Clear AJ, Goff LK, Iqbal S, Cuthbert-Heavens D, Calaminici M, Norton AJ, Lister TA, Fitzgibbon J. A limited role for TP53 mutation in the transformation of follicular lymphoma to diffuse large B-cell lymphoma. Leukemia 2005; 19:1459-65. [PMID: 15902285 DOI: 10.1038/sj.leu.2403802] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The role of TP53 mutation in transformation of follicular lymphoma (FL) to diffuse large B-cell lymphoma (t-FL) was examined in a panel of 91 lymph node biopsies derived from 29 patients pre- and post-transformation. The entire TP53 coding sequence was screened and immunocytochemistry performed to determine expression of p53 and its key regulator MDM2. A total of 10 mutations were detected in eight patients (28%), although none were present at FL diagnosis. Mutations were not detected solely at the time of transformation; in three patients, mutated TP53 arose in at least one antecedent FL sample (6 months, 2.5 years and 4 years prior to transformation). Loss of heterozygosity at the TP53 locus occurred in 2/20 informative patients (only in t-FL samples). p53 staining was positive in 82% (9/11) of available biopsies with a missense mutation, and negative in 71% (45/63) with wtTP53. MDM2 expression was significantly higher in t-FL samples (mean 72% positive; 95% confidence interval (95% CI) 68-76%) than FL (mean 58% positive; 95% CI 54-62%) (P<0.001) but did not correlate with TP53 status. TP53 mutation has only a limited role in the transformation of FL, exerting a heterogeneous influence upon phenotypic change. In contrast, dysregulation of MDM2 is frequent and may provide a more rational therapeutic target..
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Affiliation(s)
- A J Davies
- Cancer Research UK Medical Oncology Unit, Bart's and The Royal London School of Medicine and Dentistry, London, UK.
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Abstract
AIMS Mediastinal large B-cell lymphoma (MLBCL) is a subtype of diffuse large B-cell lymphoma (DLBCL) in the WHO classification with peculiar features, such as female prevalence, young patient age and bulky presentation. It shows a B-cell phenotype with variable expression of surface immunoglobulin, negative CD21 and CD10 and positive CD30 in a large number of cases. An origin from activated thymic B cells has been suggested in several studies. A subpopulation of large, dendritic cells (asteroid cells) strongly expressing CD23 has been identified amongst thymic B cells and these could represent the normal cellular counterpart for this type of primary mediastinal large cell lymphoma. METHODS AND RESULTS To explore this possibility, we immunostained 24 cases of primary mediastinal lymphomas and 100 cases of non-mediastinal, nodal and extranodal, DLBCLs for CD23 in routinely processed paraffin-embedded tissues. CONCLUSIONS Our results show that a vast majority (70%) of mediastinal lymphomas strongly express CD23 whilst the same antigen is expressed in only 15% of non-mediastinal nodal DLBCLs and 9% of non-mediastinal extranodal DLBCLs. These results support the hypothesis that most cases of MLBCL arise from activated dendritic thymic B cells. We also suggest that CD23 should be included in the panel of antibodies currently used to characterize this subtype of DLBCL.
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Affiliation(s)
- M Calaminici
- Department of Histopathology, St Bartholomew's Hospital, London, UK.
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Kazor CE, Mitchell PM, Lee AM, Stokes LN, Loesche WJ, Dewhirst FE, Paster BJ. Diversity of bacterial populations on the tongue dorsa of patients with halitosis and healthy patients. J Clin Microbiol 2003; 41:558-63. [PMID: 12574246 PMCID: PMC149706 DOI: 10.1128/jcm.41.2.558-563.2003] [Citation(s) in RCA: 339] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The primary purpose of the present study was to compare the microbial profiles of the tongue dorsa of healthy subjects and subjects with halitosis by using culture-independent molecular methods. Our overall goal was to determine the bacterial diversity on the surface of the tongue dorsum as part of our ongoing efforts to identify all cultivable and not-yet-cultivated species of the oral cavity. Tongue dorsum scrapings were analyzed from healthy subjects with no complaints of halitosis and subjects with halitosis, defined as an organoleptic score of 2 or more and volatile sulfur compound levels greater than 200 ppb. 16S rRNA genes from DNA isolated from tongue dorsum scrapings were amplified by PCR with universally conserved bacterial primers and cloned into Escherichia coli. Typically, 50 to 100 clones were analyzed from each subject. Fifty-one strains isolated from the tongue dorsa of healthy subjects were also analyzed. Partial sequences of approximately 500 bases of cloned inserts from the 16S rRNA genes of isolates were compared with sequences of known species or phylotypes to determine species identity or closest relatives. Nearly complete sequences of about 1,500 bases were obtained for potentially novel species or phylotypes. In an analysis of approximately 750 clones, 92 different bacterial species were identified. About half of the clones were identified as phylotypes, of which 29 were novel to the tongue microbiota. Fifty-one of the 92 species or phylotypes were detected in more than one subject. Those species most associated with healthy subjects were Streptococcus salivarius, Rothia mucilaginosa, and an uncharacterized species of Eubacterium (strain FTB41). Streptococcus salivarius was the predominant species in healthy subjects, as it represented 12 to 40% of the total clones analyzed from each healthy subject. Overall, the predominant microbiota on the tongue dorsa of healthy subjects was different from that on the tongue dorsa of subjects with halitosis. Those species most associated with halitosis were Atopobium parvulum, a phylotype (clone BS095) of Dialister, Eubacterium sulci, a phylotype (clone DR034) of the uncultivated phylum TM7, Solobacterium moorei, and a phylotype (clone BW009) of STREPTOCOCCUS: On the basis of our ongoing efforts to obtain full 16S rRNA sequences for all cultivable and not-yet-cultivated species that colonize the oral cavity, there are now over 600 species.
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Affiliation(s)
- C E Kazor
- Department of Microbiology and Immunology, School of Medicine, University of Michigan, Ann Arbor, Michigan, USA
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Lee AM, Mennone JZ, Jones RC, Paul WS. Risk factors for hepatotoxicity associated with rifampin and pyrazinamide for the treatment of latent tuberculosis infection: experience from three public health tuberculosis clinics. Int J Tuberc Lung Dis 2002; 6:995-1000. [PMID: 12475146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
SETTING Three municipal tuberculosis (TB) clinics. OBJECTIVES Reports of liver injury in patients treated with a 2-month regimen of daily rifampin and pyrazinamide (2RZ) for latent TB infection have raised concern about its safety. We aimed to evaluate the safety and tolerability of 2RZ and identify risk factors for hepatotoxicity. METHODS We reviewed charts of adults started on 2RZ between 1999 and 2001. Cases with grade 3 hepatotoxicity (AST or ALT >5.0-20.0 x upper limit of normal) and grade 4 hepatotoxicity (AST or ALT >20.0 x upper limit of normal) were identified. RESULTS Of 148 patients prescribed 2RZ, 85 (57.4%) completed therapy. Grade 3 or 4 hepatotoxicity occurred in 14 patients (eight grade 4 cases). In multivariate analysis, hepatotoxicity was associated with female sex (odds ratio [OR] 4.1; 95% confidence interval [CI] 1.2-14.3) and with presumed recent infection (recent tuberculin skin test conversion or contact with a TB case) (OR 14.3; 95%CI 1.8-115), but not with alcohol use, illicit drug use, age, race, or pyrazinamide dose. CONCLUSIONS Hepatotoxicity occurred in a high proportion of patients prescribed 2RZ, and was more common among females and those with recent infection. Caution is warranted in using 2RZ in populations where its safety has not been established.
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Affiliation(s)
- A M Lee
- Communicable Disease Program, Chicago Department of Public Health, Chicago, IL 60612, USA
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Acosta D, Affolder T, Akimoto H, Albrow MG, Amaral P, Ambrose D, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Artikov A, Asakawa T, Ashmanskas W, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bachacou H, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Barone M, Bauer G, Bedeschi F, Belforte S, Bell WH, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bhatti A, Binkley M, Bisello D, Bishai M, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk SR, Bocci A, Bodek A, Bolla G, Bonushkin Y, Borras K, Bortoletto D, Boudreau J, Brandl A, van den Brink S, Bromberg C, Brozovic M, Brubaker E, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Cabrera S, Calafiura P, Campbell M, Carithers W, Carlson J, Carlsmith D, Caskey W, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Chung JY, Chung YS, Ciobanu CI, Clark AG, Colijn AP, Connolly A, Convery ME, Conway J, Cordelli M, Cranshaw J, Cropp R, Culbertson R, Dagenhart D, D'Auria S, DeJongh F, Dell'Agnello S, Dell'Orso M, Demers S, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Dominguez A, Donati S, Done J, D'Onofrio M, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E, Erbacher R, Errede D, Errede S, Fan Q, Fang HC, Feild RG, Fernandez JP, Ferretti C, Field RD, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Fukui Y, Furic I, Galeotti S, Gallas A, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Gerdes DW, Giannetti P, Glagolev V, Glenzinski D, Gold M, Goldstein J, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Green C, Grim G, Gris P, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes da Costa J, Haas RM, Haber C, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Herndon M, Hill C, Hocker A, Hoffman KD, Hollebeek R, Holloway L, Huffman BT, Hughes R, Huston J, Huth J, Ikeda H, Incandela J, Introzzi G, Ivanov A, Iwai J, Iwata Y, James E, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kartal S, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Khazins D, Kikuchi T, Kilminster B, Kim BJ, Kim DH, Kim HS, Kim MJ, Kim SB, Kim SH, Kim YK, Kirby M, Kirk M, Kirsch L, Klimenko S, Koehn P, Kondo K, Konigsberg J, Korn A, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lancaster J, Lancaster M, Lander R, Lath A, Latino G, LeCompte T, Lee AM, Lee K, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Litvintsev DO, Lobban O, Lockyer NS, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JAJ, Mayer J, Mazzanti P, McFarland KS, McIntyre P, Menguzzato M, Menzione A, Merkel P, Mesropian C, Meyer A, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Mitselmakher G, Miyazaki Y, Moggi N, Moore C, Moore E, Moore R, Morita Y, Moulik T, Mulhearn M, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Nachtman J, Nagaslaev V, Nahn S, Nakada H, Nakano I, Nelson C, Nelson T, Neu C, Neuberger D, Newman-Holmes C, Ngan CYP, Niu H, Nodulman L, Nomerotski A, Oh SH, Oh YD, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Orejudos W, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Pellett D, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Pukhov O, Punzi G, Rakitine A, Ratnikov F, Reher D, Reichold A, Renton P, Ribon A, Riegler W, Rimondi F, Ristori L, Riveline M, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Rott C, Roy A, Ruiz A, Safonov A, St Denis R, Sakumoto WK, Saltzberg D, Sanchez C, Sansoni A, Santi L, Sato H, Savard P, Savoy-Navarro A, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Sedov A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Sidoti A, Siegrist J, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takano T, Takashima R, Takikawa K, Tamburello P, Tanaka M, Tannenbaum B, Tecchio M, Tesarek RJ, Teng PK, Terashi K, Tether S, Thompson AS, Thomson E, Thurman-Keup R, Tipton P, Tkaczyk S, Toback D, Tollefson K, Tollestrup A, Tonelli D, Toyoda H, Trischuk W, de Troconiz JF, Tseng J, Tsybychev D, Turini N, Ukegawa F, Vaiciulis T, Valls J, Vejcik S, Velev G, Veramendi G, Vidal R, Vila I, Vilar R, Volobouev I, von der Mey M, Vucinic D, Wagner RG, Wagner RL, Wallace NB, Wan Z, Wang C, Wang MJ, Wang SM, Ward B, Waschke S, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC, Wicklund AB, Wicklund E, Wilkes T, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Wolinski S, Worm S, Wu X, Wyss J, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Yu Z, Zanetti A, Zetti F, Zucchelli S. Diffractive dijet production at sqrt[s] = 630 and 1800 GeV at the Fermilab Tevatron. Phys Rev Lett 2002; 88:151802. [PMID: 11955190 DOI: 10.1103/physrevlett.88.151802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2001] [Indexed: 05/23/2023]
Abstract
We report a measurement of the diffractive structure function F(D)(jj) of the antiproton obtained from a study of dijet events produced in association with a leading antiproton in pp collisions at sqrt[s] = 630 GeV at the Fermilab Tevatron. The ratio of F(D)(jj) at sqrt[s] = 630 GeV to F(D)(jj) obtained from a similar measurement at sqrt[s] = 1800 GeV is compared with expectations from QCD factorization and other theoretical predictions. We also report a measurement of the xi ( x-Pomeron) and beta ( x of parton in Pomeron) dependence of F(D)(jj) at sqrt[s] = 1800 GeV. In the region 0.035<xi<0.095, /t/<1 GeV2, and beta<0.5, F(D)(jj)(beta,xi) is found to be of the form beta(-1.0+/-0.1)xi(-0.9+/-0.1), which obeys beta-xi factorization.
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Affiliation(s)
- D Acosta
- University of Florida, Gainesville, Florida 32611, USA
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Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Artikov A, Asakawa T, Ashmanskas W, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bachacou H, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Barone M, Battle C, Bauer G, Bedeschi F, Belforte S, Bell WH, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bhatti A, Binkley M, Bisello D, Bishai M, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk SR, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Bortoletto D, Boudreau J, Brandl A, van den Brink S, Bromberg C, Brozovic M, Brubaker E, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Cabrera S, Calafiura P, Campbell M, Carithers W, Carlson J, Carlsmith D, Caskey W, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Chung YS, Ciobanu CI, Clark AG, Connolly A, Conway J, Cordelli M, Cranshaw J, Cropp R, Culbertson R, Dagenhart D, D'Auria S, DeJongh F, Dell'Agnello S, Dell'Orso M, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Dominguez A, Donati S, Done J, D'Onofrio M, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E, Erbacher R, Errede D, Errede S, Fan Q, Fang HC, Feild RG, Fernandez JP, Ferretti C, Field RD, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Frisch F, Fukui Y, Furic I, Galeotti S, Gallas A, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Gerdes DW, Giannetti P, Giromini P, Glagolev V, Glenzinski D, Gold M, Goldstein J, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Green C, Grim G, Gris P, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes da Costa J, Haas RM, Haber C, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Herndon M, Hill C, Hoffman KD, Holck C, Hollebeek R, Holloway L, Huffman BT, Hughes R, Huston J, Huth J, Ikeda H, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Khazins D, Kikuchi T, Kilminster B, Kim BJ, Kim DH, Kim HS, Kim MJ, Kim SB, Kim SH, Kim YK, Kirby M, Kirk M, Kirsch L, Klimenko S, Koehn P, Kondo K, Kongisberg J, Korn A, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lancaster J, Lancaster M, Lander R, Lath A, Latino G, LeCompte T, Lee AM, Lee K, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Litvintsev DO, Lobban O, Lockyer N, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JAJ, Mayer J, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Menzione A, Mesropian C, Meyer A, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Mitselmakher G, Moggi N, Moore E, Moore R, Morita Y, Moulik T, Mulhearn M, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Nachtman J, Nagaslaev V, Nahn S, Nakada H, Nakano I, Nelson C, Nelson T, Neu C, Neuberger D, Newman-Holmes C, Ngan CYP, Niu H, Nodulman L, Nomerotski A, Oh SH, Oh YD, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Orejudos W, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Pellett D, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Pukhov O, Punzi G, Rakitine A, Ratnikov F, Reher D, Reichold A, Ribon A, Riegler W, Rimondi F, Ristori L, Riveline M, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Rott C, Roy A, Ruiz A, Safonov A, St Denis R, Sakumoto WK, Saltzberg D, Sanchez C, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Sidoti A, Siegrist J, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takano T, Takashima R, Takikawa K, Tamburello P, Tanaka M, Tannenbaum B, Tecchio M, Tesarek R, Teng PK, Terashi K, Tether S, Thompson AS, Thurman-Keup R, Tipton P, Tkaczyk S, Toback D, Tollefson K, Tollestrup A, Tonelli D, Toyoda H, Trischuk W, de Troconiz JF, Tseng J, Turini N, Ukegawa F, Vaiciulis T, Valls J, Vejcik S, Velev G, Veramendi G, Vidal R, Vila I, Vilar R, Volobouev I, von der Mey M, Vucinic D, Wagner RG, Wagner RL, Wallace NB, Wan Z, Wang C, Wang MJ, Ward B, Waschke S, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC, Wicklund AB, Wicklund E, Wilkes T, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Wolinski S, Worm S, Wu X, Wyss J, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Yu Z, Zanetti A, Zetti F, Zucchelli S. Search for new heavy particles in the WZ0 final state in pp collisions at square root[s] = 1.8 TeV. Phys Rev Lett 2002; 88:071806. [PMID: 11863887 DOI: 10.1103/physrevlett.88.071806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2001] [Indexed: 05/23/2023]
Abstract
We present the first general search for new heavy particles, X, which decay via X --> WZ0 --> e(nu)+jj as a function of M(X) and Gamma(X) in pp collisions at square root[s] = 1.8 TeV. No evidence is found for production of X in 110 pb(-1) of data collected by the Collider Detector at Fermilab. General cross section limits are set at the 95% C.L. as a function of mass and width of the new particle. The results are further interpreted as mass limits on the production of new heavy charged vector bosons which decay via W' --> WZ0 in an extended gauge model as a function of the width, Gamma(W'), and mixing factor between the W' and the standard model W bosons.
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Affiliation(s)
- T Affolder
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Artikov A, Asakawa T, Ashmanskas W, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bachacou H, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Barone M, Bauer G, Bedeschi F, Belforte S, Bell WH, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bhatti A, Binkley M, Bisello D, Bishai M, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk SR, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Bortoletto D, Boudreau J, Brandl A, van den Brink S, Bromberg C, Brozovic M, Brubaker E, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Cabrera S, Calafiura P, Campbell M, Carithers W, Carlson J, Carlsmith D, Caskey W, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Chung YS, Ciobanu CI, Clark AG, Colijn AP, Connolly A, Conway J, Cordelli M, Cranshaw J, Cropp R, Culbertson R, Dagenhart D, D'Auria S, DeJongh F, Dell'Agnello S, Dell'Orso M, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Dominguez A, Donati S, Done J, D'Onofrio M, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E, Erbacher R, Errede D, Errede S, Fan Q, Fang HC, Feild RG, Fernandez JP, Ferretti C, Field RD, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Fukui Y, Furic I, Galeotti S, Gallas A, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Gerdes DW, Giannetti P, Giromini P, Glagolev V, Glenzinski D, Gold M, Goldstein J, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Green C, Grim G, Gris P, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes da Costa J, Haas RM, Haber C, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Herndon M, Hill C, Hoffman KD, Holck C, Hollebeek R, Holloway L, Huffman BT, Hughes R, Huston J, Huth J, Ikeda H, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Khazins D, Kikuchi T, Kilminster B, Kim BJ, Kim DH, Kim HS, Kim MJ, Kim SB, Kim SH, Kim YK, Kirby M, Kirk M, Kirsch L, Klimenko S, Koehn P, Kondo K, Konigsberg J, Korn A, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lancaster J, Lancaster M, Lander R, Lath A, Latino G, LeCompte T, Lee AM, Lee K, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Litvintsev DO, Lobban O, Lockyer N, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JAJ, Mayer J, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Menzione A, Merkel P, Mesropian C, Meyer A, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Mitselmakher G, Moggi N, Moore E, Moore R, Morita Y, Moulik T, Mulhearn M, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Nachtman J, Nagaslaev V, Nahn S, Nakada H, Nakano I, Nelson C, Nelson T, Neu C, Neuberger D, Newman-Holmes C, Ngan CYP, Niu H, Nodulman L, Nomerotski A, Oh SH, Oh YD, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Orejudos W, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Pellett D, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Pukhov O, Punzi G, Rakitine A, Ratnikov F, Reher D, Reichold A, Ribon A, Riegler W, Rimondi F, Ristori L, Riveline M, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Rott C, Roy A, Ruiz A, Safonov A, St Denis R, Sakumoto WK, Saltzberg D, Sanchez C, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Sidoti A, Siegrist J, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takano T, Takashima R, Takikawa K, Tamburello P, Tanaka M, Tannenbaum B, Tecchio M, Tesarek R, Teng PK, Terashi K, Tether S, Thompson AS, Thurman-Keup R, Tipton P, Tkaczyk S, Toback D, Tollefson K, Tollestrup A, Tonelli D, Toyoda H, Trischuk W, de Troconiz JF, Tseng J, Turini N, Ukegawa F, Vaiciulis T, Valls J, Vejcik S, Velev G, Veramendi G, Vidal R, Vila I, Vilar R, Volobouev I, von der Mey M, Vucinic D, Wagner RG, Wagner RL, Wallace NB, Wan Z, Wang C, Wang MJ, Ward B, Waschke S, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC, Wicklund AB, Wicklund E, Wilkes T, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Wolinski S, Worm S, Wu X, Wyss J, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Yu Z, Zanetti A, Zetti F, Zucchelli S. Study of B0 --> J/psiK(*)0pi(+)pi(-) decays with the collider detector at Fermilab. Phys Rev Lett 2002; 88:071801. [PMID: 11863882 DOI: 10.1103/physrevlett.88.071801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2001] [Indexed: 05/23/2023]
Abstract
We report a study of the decays B0 --> J/psiK(*)0pi(+)pi(-), which involve the creation of a uu or dd quark pair in addition to a b -->c(cs) decay. The data sample consists of 110 pb(-1) of pp collisions at square root[s] = 1.8 TeV collected by the CDF detector at the Fermilab Tevatron collider during 1992-1995. We measure the branching fractions to be B(B0 --> J/psiK(*0)pi(+)pi(-)) = (6.6 +/- 1.9 +/- 1.1)x10(-4) and B(B0 --> J/psiK0pi(+)pi(-)) = (10.3 +/- 3.3 +/- 1.5)x10(-4). Evidence is seen for contributions from psi(2S)K(*)0, J/psiK0rho(0), J/psiK(*+)pi(-), and J/psiK1(1270).
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Affiliation(s)
- T Affolder
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Artikov A, Asakawa T, Ashmanskas W, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bachacou H, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Barone M, Bauer G, Bedeschi F, Belforte S, Bell WH, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bhatti A, Binkley M, Bisello D, Bishai M, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk SR, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Bortoletto D, Boudreau J, Brandl A, van den Brink S, Bromberg C, Brozovic M, Brubaker E, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Cabrera S, Calafiura P, Campbell M, Carithers W, Carlson J, Carlsmith D, Caskey W, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Chung YS, Ciobanu CI, Clark AG, Connolly A, Conway J, Cordelli M, Cranshaw J, Cropp R, Culbertson R, Dagenhart D, D'Auria S, DeJongh F, Dell'Agnello S, Dell'Orso M, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Dominguez A, Donati S, Done J, D'Onofrio M, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E, Erbacher R, Errede D, Errede S, Fan Q, Feild RG, Fernandez JP, Ferretti C, Field RD, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Frisch HJ, Fukui Y, Furic I, Galeotti S, Gallas A, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Gerdes DW, Giannetti P, Giromini P, Glagolev V, Glenzinski D, Gold M, Goldstein J, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Green C, Grim G, Gris P, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes da Costa J, Haas RM, Haber C, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Herndon M, Hill C, Hoffman KD, Holck C, Hollebeek R, Holloway L, Hughes R, Huston J, Huth J, Ikeda H, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Khazins D, Kikuchi T, Kilminster B, Kim BJ, Kim DH, Kim HS, Kim MJ, Kim SB, Kim SH, Kim YK, Kirby M, Kirk M, Kirsch L, Klimenko S, Koehn P, Kondo K, Konigsberg J, Korn A, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lancaster J, Lancaster M, Lander R, Lath A, Latino G, LeCompte T, Lee AM, Lee K, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Litvintsev DO, Lobban O, Lockyer N, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JAJ, Mayer J, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Menzione A, Mesropian C, Meyer A, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Mitselmakher G, Moggi N, Moore E, Moore R, Morita Y, Moulik T, Mulhearn M, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Nachtman J, Nagaslaev V, Nahn S, Nakada H, Nakano I, Nelson C, Nelson T, Neu C, Neuberger D, Newman-Holmes C, Ngan CYP, Niu H, Nodulman L, Nomerotski A, Oh SH, Oh YD, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Orejudos W, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Pukhov O, Punzi G, Rakitine A, Ratnikov F, Reher D, Reichold A, Ribon A, Riegler W, Rimondi F, Ristori L, Riveline M, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Roy A, Ruiz A, Safonov A, St Denis R, Sakumoto WK, Saltzberg D, Sanchez C, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Sidoti A, Siegrist J, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takano T, Takashima R, Takikawa K, Tamburello P, Tanaka M, Tannenbaum B, Tecchio M, Tesarek R, Teng PK, Terashi K, Tether S, Thompson AS, Thurman-Keup R, Tipton P, Tkaczyk S, Toback D, Tollefson K, Tollestrup A, Tonelli D, Toyoda H, Trischuk W, de Troconiz JF, Tseng J, Turini N, Ukegawa F, Vaiciulis T, Valls J, Vejcik S, Velev G, Veramendi G, Vidal R, Vila I, Vilar R, Volobouev I, von der Mey M, Vucinic D, Wagner RG, Wagner RL, Wallace NB, Wan Z, Wang C, Wang MJ, Ward B, Waschke S, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC, Wicklund AB, Wicklund E, Wilkes T, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Wolinski S, Worm S, Wu X, Wyss J, Yao W, Yagil A, Yeh GP, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Yu Z, Zanetti A, Zetti F, Zucchelli S. Search for gluinos and scalar quarks in pp collisions at square root[s] = 1.8 TeV using the missing energy plus multijets signature. Phys Rev Lett 2002; 88:041801. [PMID: 11801105 DOI: 10.1103/physrevlett.88.041801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2001] [Indexed: 05/23/2023]
Abstract
We have performed a search for gluinos (g) and scalar quarks (q) in a data sample of 84 pb(-1) of pp collisions at square root[s] = 1.8 TeV, recorded by the Collider Detector at Fermilab. We investigate the final state of large missing transverse energy and three or more jets, a characteristic signature in R-parity-conserving supersymmetric models. The analysis has been performed "blind," in that the inspection of the signal region is made only after the predictions from standard model backgrounds have been calculated. Comparing the data with predictions of constrained supersymmetric models, we exclude gluino masses below 195 GeV/c2 (95% C.L.), independent of the squark mass. For the case m(q) approximately m(g), gluino masses below 300 GeV/c2 are excluded.
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Affiliation(s)
- T Affolder
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Artikov A, Asakawa T, Ashmanskas W, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bachacou H, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Barone M, Bauer G, Bedeschi F, Belforte S, Bell WH, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bhatti A, Binkley M, Bisello D, Bishai M, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk SR, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Bortoletto D, Boudreau J, Brandl A, van den Brink S, Bromberg C, Brozovic M, Brubaker E, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Cabrera S, Calafiura P, Campbell M, Carithers W, Carlson J, Carlsmith D, Caskey W, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Chung YS, Ciobanu CI, Clark AG, Colijn AP, Connolly A, Convery M, Conway J, Cordelli M, Cranshaw J, Cropp R, Culbertson R, Dagenhart D, D'Auria S, DeJongh F, Dell'Agnello S, Dell'Orso M, Demers S, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Dominguez A, Donati S, Done J, D'Onofrio M, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E, Erbacher R, Errede D, Errede S, Fan Q, Fang HC, Feild RG, Fernandez JP, Ferretti C, Field RD, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Fukui Y, Furic I, Galeotti S, Gallas A, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Gerdes DW, Giannetti P, Giromini P, Glagolev V, Glenzinski D, Gold M, Goldstein J, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Green C, Grim G, Gris P, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes da Costa J, Haas RM, Haber C, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Herndon M, Hill C, Hoffman KD, Holck C, Hollebeek R, Holloway L, Huffman BT, Hughes R, Huston J, Huth J, Ikeda H, Incandela J, Introzzi G, Ivanov A, Iwai J, Iwata Y, James E, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kartal S, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Khazins D, Kikuchi T, Kilminster B, Kim BJ, Kim DH, Kim HS, Kim MJ, Kim SB, Kim SH, Kim YK, Kirby M, Kirk M, Kirsch L, Klimenko S, Koehn P, Kondo K, Konigsberg J, Korn A, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lancaster J, Lancaster M, Lander R, Lath A, Latino G, LeCompte T, Lee AM, Lee K, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Litvintsev DO, Lobban O, Lockyer N, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JAJ, Mayer J, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Menzione A, Merkel P, Mesropian C, Meyer A, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Mitselmakher G, Miyazaki Y, Moggi N, Moore E, Moore R, Morita Y, Moulik T, Mulhearn M, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Nachtman J, Nagaslaev V, Nahn S, Nakada H, Nakano I, Nelson C, Nelson T, Neu C, Neuberger D, Newman-Holmes C, Ngan CYP, Niu H, Nodulman L, Nomerotski A, Oh SH, Oh YD, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Orejudos W, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Pellett D, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Pukhov O, Punzi G, Rakitine A, Ratnikov F, Reher D, Reichold A, Renton P, Ribon A, Riegler W, Rimondi F, Ristori L, Riveline M, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Rott C, Roy A, Ruiz A, Safonov A, St Denis R, Sakumoto WK, Saltzberg D, Sanchez C, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Sidoti A, Siegrist J, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takano T, Takashima R, Takikawa K, Tamburello P, Tanaka M, Tannenbaum B, Tecchio M, Tesarek R, Teng PK, Terashi K, Tether S, Thompson AS, Thurman-Keup R, Tipton P, Tkaczyk S, Toback D, Tollefson K, Tollestrup A, Tonelli D, Toyoda H, Trischuk W, de Troconiz JF, Tseng J, Turini N, Ukegawa F, Vaiciulis T, Valls J, Vejcik S, Velev G, Veramendi G, Vidal R, Vila I, Vilar R, Volobouev I, von der Mey M, Vucinic D, Wagner RG, Wagner RL, Wallace NB, Wan Z, Wang C, Wang MJ, Ward B, Waschke S, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC, Wicklund AB, Wicklund E, Wilkes T, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Wolinski S, Worm S, Wu X, Wyss J, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Yu Z, Zanetti A, Zetti F, Zucchelli S. Measurement of the strong coupling constant from inclusive jet production at the Tevatron pp collider. Phys Rev Lett 2002; 88:042001. [PMID: 11801109 DOI: 10.1103/physrevlett.88.042001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2001] [Indexed: 05/23/2023]
Abstract
We report a measurement of the strong coupling constant, alpha(s)(MZ), extracted from inclusive jet production in pp collisions at square root[s] = 1800 GeV. The QCD prediction for the evolution of alpha(s) with jet transverse energy ET is tested over the range 40<ET<450 GeV using ET for the renormalization scale. The data show good agreement with QCD in the region below 250 GeV. The value of alpha(s) at the mass of the Z0 boson averaged over the range 40<ET<250 GeV is found to be alpha(s)(MZ) = 0.1178+/-0.0001(stat)+0.0081(-0.0095)(expt. syst). The associated theoretical uncertainties are mainly due to the choice of renormalization scale ((+6%)(-4%)) and input parton distribution functions (5%).
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Affiliation(s)
- T Affolder
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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Runciman DJ, Lee AM, Reed KFM, Walsh JR. Dicoumarol toxicity in cattle associated with ingestion of silage containing sweet vernal grass (Anthoxanthum odoratum). Aust Vet J 2002; 80:28-32. [PMID: 12180874 DOI: 10.1111/j.1751-0813.2002.tb12041.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A diagnosis of dicoumarol toxicity in a herd of Friesian cattle was made following investigation of the deaths of three mature cows and eleven yearling heifers. Affected stock had been fed wrapped, bailed silage containing approximately 90% sweet vernal grass (Anthoxanthum odoratum). Sweet vernal grass contains coumarin, which can be converted to dicoumarol, a vitamin K antagonist, through the action of moulds. Most deaths were preceded by lethargy, severe anaemia and subcutaneous and internal haemorrhage. Dicoumarol toxicosis was suspected based on clinical signs, necropsy findings and prolonged prothrombin and activated partial thromboplastin times. Dicoumarol analysis of blood from affected animals and silage confirmed the diagnosis. Activated partial thromboplastin time Haemoglobin Packed cell volume Prothrombin time Red cell count
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Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Artikov A, Asakawa T, Ashmanskas W, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bachacou H, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Barone M, Bauer G, Bedeschi F, Belforte S, Bell WH, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bhatti A, Binkley M, Bisello D, Bishai M, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk SR, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Bortoletto D, Boudreau J, Brandl A, van den Brink S, Bromberg C, Brozovic M, Brubaker E, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Cabrera S, Calafiura P, Campbell M, Carithers W, Carlson J, Carlsmith D, Caskey W, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Chung YS, Ciobanu CI, Clark AG, Connolly A, Conway J, Cordelli M, Cranshaw J, Cropp R, Culbertson R, Dagenhart D, D'Auria S, DeJongh F, Dell'Agnello S, Dell'Orso M, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Dominguez A, Donati S, Done J, D'Onofrio M, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E, Erbacher R, Errede D, Errede S, Fan Q, Feild RG, Fernandez JP, Ferretti C, Field RD, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Fukui Y, Furic I, Galeotti S, Gallas A, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Gerdes DW, Giannetti P, Giromini P, Glagolev V, Glenzinski D, Gold M, Goldstein J, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Green C, Grim G, Gris P, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes da Costa J, Haas RM, Haber C, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Herndon M, Hill C, Hoffman KD, Holck C, Hollebeek R, Holloway L, Hughes R, Huston J, Huth J, Ikeda H, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Khazins D, Kikuchi T, Kilminster B, Kim BJ, Kim DH, Kim HS, Kim MJ, Kim SB, Kim SH, Kim YK, Kirby M, Kirk M, Kirsch L, Klimenko S, Koehn P, Kondo K, Konigsberg J, Korn A, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lancaster J, Lancaster M, Lander R, Lath A, Latino G, LeCompte T, Lee AM, Lee K, Lee SW, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Litvintsev DO, Lobban O, Lockyer N, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JA, Mayer J, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Menzione A, Mesropian C, Meyer A, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Mitselmakher G, Moggi N, Moore E, Moore R, Morita Y, Moulik T, Mulhearn M, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Nachtman J, Nagaslaev V, Nahn S, Nakada H, Nakano I, Nelson C, Nelson T, Neu C, Neuberger D, Newman-Holmes C, Ngan CY, Niu H, Nodulman L, Nomerotski A, Oh SH, Oh YD, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Orejudos W, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Pellett D, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Pukhov O, Punzi G, Rakitine A, Ratnikov F, Reher D, Reichold A, Ribon A, Riegler W, Rimondi F, Ristori L, Riveline M, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Roy A, Ruiz A, Safonov A, St Denis R, Sakumoto WK, Saltzberg D, Sanchez C, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Sidoti A, Siegrist J, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takano T, Takashima R, Takikawa K, Tamburello P, Tanaka M, Tannenbaum B, Tecchio M, Tesarek R, Teng PK, Terashi K, Tether S, Thompson AS, Thurman-Keup R, Tipton P, Tkaczyk S, Toback D, Tollefson K, Tollestrup A, Tonelli D, Toyoda H, Trischuk W, de Troconiz JF, Tseng J, Turini N, Ukegawa F, Vaiciulis T, Valls J, Vejcik S, Velev G, Veramendi G, Vidal R, Vila I, Vilar R, Volobouev I, von der Mey M, Vucinic D, Wagner RG, Wagner RL, Wallace NB, Wan Z, Wang C, Wang MJ, Ward B, Waschke S, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC, Wicklund AB, Wicklund E, Wilkes T, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Wolinski S, Worm S, Wu X, Wyss J, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Yu Z, Zanetti A, Zetti F, Zucchelli S. Search for gluinos and squarks using like-sign dileptons in pp macro collisions at square root of s = 1.8 TeV. Phys Rev Lett 2001; 87:251803. [PMID: 11736562 DOI: 10.1103/physrevlett.87.251803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2001] [Indexed: 05/23/2023]
Abstract
We present results of the first search for like-sign dilepton ( e(+/-)e(+/-), e(+/-)mu(+/-), mu(+/-)mu(+/-)) events associated with multijets and large missing energy using 106 pb(-1) of data in pp macro collisions at square root of s = 1.8 TeV collected during 1992-1995 by the CDF experiment. Finding no events that pass our selection, we examine pair production of gluinos (tilde g) and squarks (tilde q) in a constrained framework of the minimal supersymmetric standard model. At tan beta = 2 and mu = -800 GeV/c(2), we set 95% confidence level limits of M(tilde g)>221 GeV/c(2) for M(tilde g) approximately M(tilde q), and M(tilde q)>168 GeV/c(2) for M(tilde q)>>M(tilde g), both with small variation as a function of mu.
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Affiliation(s)
- T Affolder
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Artikov A, Asakawa T, Ashmanskas W, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bachacou H, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Barone M, Bauer G, Bedeschi F, Belforte S, Bell WH, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bhatti A, Binkley M, Bisello D, Bishai M, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk SR, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Borras K, Bortoletto D, Boudreau J, Brandl A, van den Brink S, Bromberg C, Brozovic M, Brubaker E, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Cabrera S, Calafiura P, Campbell M, Carithers W, Carlson J, Carlsmith D, Caskey W, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Chung YS, Ciobanu CI, Clark AG, Connolly A, Convery ME, Conway J, Cordelli M, Cranshaw J, Cropp R, Culbertson R, Dagenhart D, D'Auria S, DeJongh F, Dell'Agnello S, Dell'Orso M, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Dominguez A, Donati S, Done J, D'Onofrio M, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E, Erbacher R, Errede D, Errede S, Fan Q, Feild RG, Fernandez JP, Ferretti C, Field RD, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Fukui Y, Furic I, Galeotti S, Gallas A, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Gerdes DW, Giannetti P, Glagolev V, Glenzinski D, Gold M, Goldstein J, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Green C, Grim G, Gris P, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes da Costa J, Haas RM, Haber C, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Herndon M, Hill C, Hoffman KD, Holck C, Hollebeek R, Holloway L, Hughes R, Huston J, Huth J, Ikeda H, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Khazins D, Kikuchi T, Kilminster B, Kim BJ, Kim DH, Kim HS, Kim MJ, Kim SB, Kim SH, Kim YK, Kirby M, Kirk M, Kirsch L, Klimenko S, Koehn P, Kondo K, Konigsberg J, Korn A, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lancaster J, Lancaster M, Lander R, Lath A, Latino G, LeCompte T, Lee AM, Lee K, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Litvintsev DO, Lobban O, Lockyer N, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JA, Mayer J, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Menzione A, Mesropian C, Meyer A, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Mitselmakher G, Moggi N, Moore E, Moore R, Morita Y, Moulik T, Mulhearn M, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Nachtman J, Nagaslaev V, Nahn S, Nakada H, Nakano I, Nelson C, Nelson T, Neu C, Neuberger D, Newman-Holmes C, Ngan CY, Niu H, Nodulman L, Nomerotski A, Oh SH, Oh YD, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Orejudos W, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Pellett D, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Pukhov O, Punzi G, Rakitine A, Ratnikov F, Reher D, Reichold A, Ribon A, Riegler W, Rimondi F, Ristori L, Riveline M, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Roy A, Ruiz A, Safonov A, Denis RS, Sakumoto WK, Saltzberg D, Sanchez C, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Sidoti A, Siegrist J, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takano T, Takashima R, Takikawa K, Tamburello P, Tanaka M, Tannenbaum B, Tecchio M, Tesarek R, Teng PK, Terashi K, Tether S, Thompson AS, Thurman-Keup R, Tipton P, Tkaczyk S, Toback D, Tollefson K, Tollestrup A, Tonelli D, Toyoda H, Trischuk W, de Troconiz JF, Tseng J, Turini N, Ukegawa F, Vaiciulis T, Valls J, Vejcik S, Velev G, Veramendi G, Vidal R, Vila I, Vilar R, Volobouev I, von der Mey M, Vucinic D, Wagner RG, Wagner RL, Wallace NB, Wan Z, Wang C, Wang MJ, Ward B, Waschke S, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC, Wicklund AB, Wicklund E, Wilkes T, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Wolinski S, Worm S, Wu X, Wyss J, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Yu Z, Zanetti A, Zetti F, Zucchelli S. Observation of diffractive J/psi production at the Fermilab Tevatron. Phys Rev Lett 2001; 87:241802. [PMID: 11736493 DOI: 10.1103/physrevlett.87.241802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2001] [Indexed: 05/23/2023]
Abstract
We report the first observation of diffractive J/psi(--> mu+mu-) production in pp collisions at root square[s] = 1.8 TeV. Diffractive events are identified by their rapidity gap signature. In a sample of events with two muons of transverse momentum p(mu)T>2 GeV/c within the pseudorapidity region /eta/ < 1.0, the ratio of diffractive to total J/psi production rates is found to be R(J/psi) = [1.45 +/- 0.25]%. The ratio R(J/psi)(x) is presented as a function of x-Bjorken. By combining it with our previously measured corresponding ratio R(jj)(x) for diffractive dijet production, we extract a value of 0.59 +/- 0.15 for the gluon fraction of the diffractive structure function of the proton.
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Affiliation(s)
- T Affolder
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Artikov A, Asakawa T, Ashmanskas W, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bachacou H, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Barone M, Bauer G, Bedeschi F, Belforte S, Bell WH, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bhatti A, Binkley M, Bisello D, Bishai M, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk SR, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Bortoletto D, Boudreau J, Brandl A, van den Brink S, Bromberg C, Brozovic M, Brubaker E, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Cabrera S, Calafiura P, Campbell M, Carithers W, Carlson J, Carlsmith D, Caskey W, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Chung YS, Ciobanu CI, Clark AG, Connolly A, Conway J, Cordelli M, Cranshaw J, Cropp R, Culbertson R, Dagenhart D, D'Auria S, DeJongh F, Dell'Agnello S, Dell'Orso M, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Dominguez A, Donati S, Done J, D'Onofrio M, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E, Erbacher R, Errede D, Errede S, Fan Q, Feild RG, Fernandez JP, Ferretti C, Field RD, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Fukui Y, Furic I, Galeotti S, Gallas A, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Gerdes DW, Giannetti P, Giromini P, Glagolev V, Glenzinski D, Gold M, Goldstein J, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Green C, Grim G, Gris P, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes da Costa J, Haas RM, Haber C, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Herndon M, Hill C, Hoffman KD, Holck C, Hollebeek R, Holloway L, Hughes R, Huston J, Huth J, Ikeda H, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Khazins D, Kikuchi T, Kilminster B, Kim BJ, Kim DH, Kim HS, Kim MJ, Kim SB, Kim SH, Kim YK, Kirby M, Kirk M, Kirsch L, Klimenko S, Koehn P, Kondo K, Konigsberg J, Korn A, Korytov A, Kotwal AV, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lancaster J, Lancaster M, Lander R, Lath A, Latino G, LeCompte T, Lee AM, Lee K, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Litvintsev DO, Lobban O, Lockyer N, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JA, Mayer J, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Menzione A, Mesropian C, Meyer A, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Mitselmakher G, Moggi N, Moore E, Moore R, Morita Y, Moulik T, Mulhearn M, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Nachtman J, Nagaslaev V, Nahn S, Nakada H, Nakano I, Nelson C, Nelson T, Neu C, Neuberger D, Newman-Holmes C, Ngan CY, Niu H, Nodulman L, Nomerotski A, Oh SH, Oh YD, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Orejudos W, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Pellett D, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Pukhov O, Punzi G, Rakitine A, Ratnikov F, Reher D, Reichold A, Ribon A, Riegler W, Rimondi F, Ristori L, Riveline M, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Rott C, Roy A, Ruiz A, Safonov A, St Denis R, Sakumoto WK, Saltzberg D, Sanchez C, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Sidoti A, Siegrist J, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takano T, Takashima R, Takikawa K, Tamburello P, Tanaka M, Tannenbaum B, Tecchio M, Tesarek R, Teng PK, Terashi K, Tether S, Thompson AS, Thurman-Keup R, Tipton P, Tkaczyk S, Toback D, Tollefson K, Tollestrup A, Tonelli D, Toyoda H, Trischuk W, de Troconiz JF, Tseng J, Turini N, Ukegawa F, Vaiciulis T, Valls J, Vejcik S, Velev G, Veramendi G, Vidal R, Vila I, Vilar R, Volobouev I, von der Mey M, Vucinic D, Wagner RG, Wagner RL, Wallace NB, Wan Z, Wang C, Wang MJ, Ward B, Waschke S, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC, Wicklund AB, Wicklund E, Wilkes T, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Wolinski S, Worm S, Wu X, Wyss J, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Yu Z, Zanetti A, Zetti F, Zucchelli S. Search for quark-lepton compositeness and a heavy W' Boson using the enu channel in p p macro collisions at square root of [s] = 1.8 TeV. Phys Rev Lett 2001; 87:231803. [PMID: 11736446 DOI: 10.1103/physrevlett.87.231803] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2001] [Indexed: 05/23/2023]
Abstract
We present searches for quark-lepton compositeness and a heavy W' boson at high electron-neutrino transverse mass. We use approximately 110 pb(-1) of data collected in p p macro collisions at square root of [s] = 1.8 TeV by the CDF Collaboration during 1992-1995. The data are consistent with standard model expectations. Limits are set on the quark-lepton compositeness scale Lambda, the ratio of partial cross sections sigma(W'-->enu)/sigma(W-->enu), and the mass of a W' boson with standard model couplings. We exclude Lambda<2.81 TeV and a W' boson with mass below 754 GeV/c(2) at the 95% confidence level. Combining with our previously published limit obtained using the muon channel, we exclude a W' boson with mass below 786 GeV/c(2) at the 95% confidence level.
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Affiliation(s)
- T Affolder
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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Linnan LA, Kim AE, Wasilewski Y, Lee AM, Yang J, Solomon F. Working with licensed cosmetologists to promote health: results from the North Carolina BEAUTY and Health Pilot Study. Prev Med 2001; 33:606-12. [PMID: 11716657 DOI: 10.1006/pmed.2001.0933] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND Beauty salons are located in all communities and represent a promising channel for delivering health promotion programs. No previous salon-based health promotion program has assessed the needs, interests, and preferences of licensed cosmetologists about sharing health information with their clients. METHODS Licensed cosmetologists in one town completed a mailed survey assessing (1) health topics typically discussed with clients, (2) interest in delivering messages about beauty and health, and (3) preferred methods for learning about and sharing health information with their clients. RESULTS The average cosmetologist sees 47 clients per week and spends 30-60 min per appointment. Eighty-two percent report that they are interested in talking about health with their clients. Most cosmetologists already discuss a wide range of health topics with their clients and are most comfortable discussing healthy eating (65.3%), physical activity (63.3%), and dieting (63.3%). Cosmetologists preferred reading pamphlets (55.1%) and watching educational videos (46.9%) to learn about beauty and health. Distributing pamphlets (69.4%), talking with clients (61.2%), and placing posters/mirror stickers in the salons (59.2%) were the methods cosmetologists most preferred for sharing health information with their clients. CONCLUSIONS Licensed cosmetologists are in a unique position to serve as "natural helpers" by delivering health messages to their clients and reinforcing those messages over time. Partnerships with licensed cosmetologists should be developed to deliver salon-based health promotion programs.
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Affiliation(s)
- L A Linnan
- Department of Health Behavior and Health Education, School of Public Health, University of North Carolina School of Public Health, Chapel Hill, NC 27599-7440, USA.
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Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Artikov A, Asakawa T, Ashmanskas W, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bachacou H, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Barone M, Bauer G, Bedeschi F, Belforte S, Bell WH, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bhatti A, Binkley M, Bisello D, Bishai M, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk SR, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Bortoletto D, Boudreau J, Brandl A, van Brink S, Bromberg C, Brozovic M, Brubaker E, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Cabrera S, Calafiura P, Campbell M, Carithers W, Carlson J, Carlsmith D, Caskey W, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Chung YS, Ciobanu CI, Clark AG, Connolly A, Conway J, Cordelli M, Cranshaw J, Cropp R, Culbertson R, Dagenhart D, D'Auria S, DeJongh F, Dell'Agnello S, Dell'Orso M, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Dominguez A, Donati S, Done J, D'Onofrio M, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E, Erbacher R, Errede D, Errede S, Fan Q, Feild RG, Fernandez JP, Ferretti C, Field RD, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Fukui Y, Furic I, Galeotti S, Gallas A, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Gerdes DW, Giannetti P, Giromini P, Glagolev V, Glenzinski D, Gold M, Goldstein J, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Green C, Grim G, Gris P, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes De Costa J, Haas RM, Haber C, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Herndon M, Hill C, Hoffman KD, Holck C, Hollebeek R, Holloway L, Hughes R, Huston J, Huth J, Ikeda H, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Khazins D, Kikuchi T, Kilminster B, Kim BJ, Kim DH, Kim HS, Kim MJ, Kim SB, Kim SH, Kim YK, Kirby M, Kirk M, Kirsch L, Klimenko S, Koehn P, Kondo K, Konigsberg J, Korn A, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lancaster J, Lancaster M, Lander R, Lath A, Latino G, LeCompte T, Lee AM, Lee K, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Litvintsev DO, Lobban O, Lockyer N, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JA, Mayer J, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Menzione A, Mesropian C, Meyer A, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Mitselmakher G, Moggi N, Moore E, Moore R, Morita Y, Moulik T, Mulhearn M, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Nachtman J, Nagaslaev V, Nahn S, Nakada H, Nakano I, Nelson C, Nelson T, Neu C, Neuberger D, Newman-Holmes C, Ngan CY, Niu H, Nodulman L, Nomerotski A, Oh SH, Oh YD, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Orejudos W, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Plunkett R, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Pukhov O, Punzi G, Rakitine A, Ratnikov F, Reher D, Reichold A, Ribon A, Riegler W, Rimondi F, Ristori L, Riveline M, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Roy A, Ruiz A, Safonov A, St Denis R, Sakumoto WK, Saltzberg D, Sanchez C, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Sidoti A, Siegrist J, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takano T, Takashima R, Takikawa K, Tamburello P, Tanaka M, Tannenbaum B, Tecchio M, Tesarek R, Teng PK, Terashi K, Tether S, Thompson AS, Thurman-Keup R, Tipton P, Tkaczyk S, Toback D, Tollefson K, Tollestrup A, Tonelli D, Toyoda H, Trischuk W, de Troconiz JF, Tseng J, Turini N, Ukegawa F, Vaiciulis T, Valls J, Vejcik S, Velev G, Veramendi G, Vidal R, Vila I, Vilar R, Volobouev I, von Der Mey M, Vucinic D, Wagner RG, Wagner RL, Wallace NB, Wan Z, Wang C, Wang MJ, Ward B, Waschke S, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC, Wicklund AB, Wicklund E, Wilkes T, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Wolinski S, Worm S, Wu X, Wyss J, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Yu Z, Zanetti A, Zetti F, Zucchelli S. Charged-particle multiplicity pp collisions at square root of (s) = 1.8 TeV. Phys Rev Lett 2001; 87:211804. [PMID: 11736333 DOI: 10.1103/physrevlett.87.211804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We report on a measurement of the mean charged-particle multiplicity of jets in dijet events with dijet masses in the range 80-630 GeV/c(2), produced at the Tevatron in pp collisions with square root (s) = 1.8 TeV and recorded by the Collider Detector at Fermilab. The data are fit to perturbative-QCD calculations carried out in the framework of the modified leading log approximation and the hypothesis of local parton-hadron duality. The fit yields values for two parameters in that framework: the ratio of parton multiplicities in gluon and quark jets, r identical withN(g-jet)(partons)/N(q-jet)(partons) = 1.7+/-0.3, and the ratio of the number of charged hadrons to the number of partons in a jet, K(charged)(LPHD) identical with N(charged)(hadrons)/N(partons) = 0.57+/-0.11.
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Affiliation(s)
- T Affolder
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Asakawa T, Ashmanskas W, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bailey MW, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Barone M, Bauer G, Bedeschi F, Belforte S, Bell WH, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bhatti A, Binkley M, Bisello D, Bishai M, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk SR, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Borras K, Bortoletto D, Boudreau J, Brandl A, van Den Brink S, Bromberg C, Brozovic M, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Cabrera S, Calafiura P, Campbell M, Carithers W, Carlson J, Carlsmith D, Caskey W, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Chung YS, Ciobanu CI, Clark AG, Connolly A, Convery M, Conway J, Cordelli M, Cranshaw J, Cropp R, Culbertson R, Dagenhart D, D'Auria S, DeJongh F, Dell'Agnello S, Dell'Orso M, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Dominguez A, Donati S, Done J, D'Onofrio M, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E, Erbacher R, Errede D, Errede S, Fan Q, Feild RG, Fernandez JP, Ferretti C, Field RD, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Fukui Y, Furic I, Galeotti S, Gallas A, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Gerdes DW, Giannetti P, Glagolev V, Glenzinski D, Gold M, Goldstein J, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Green C, Grim G, Gris P, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes Da Costa J, Haas RM, Haber C, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Herndon M, Hill C, Hoffman KD, Holck C, Hollebeek R, Holloway L, Hughes R, Huston J, Huth J, Ikeda H, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Khazins D, Kikuchi T, Kilminster B, Kim BJ, Kim DH, Kim HS, Kim MJ, Kim SB, Kim SH, Kim YK, Kirby M, Kirk M, Kirsch L, Klimenko S, Koehn P, Kondo K, Konigsberg J, Korn A, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lancaster J, Lancaster M, Lander R, Latino G, LeCompte T, Lee AM, Lee K, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Litvintsev DO, Lobban O, Lockyer N, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JA, Mayer J, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Menzione A, Mesropian C, Meyer A, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Mitselmakher G, Moggi N, Moore E, Moore R, Morita Y, Moulik T, Mulhearn M, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Nachtman J, Nagaslaev V, Nahn S, Nakada H, Nakano I, Nelson C, Nelson T, Neu C, Neuberger D, Newman-Holmes C, Ngan CY, Niu H, Nodulman L, Nomerotski A, Oh SH, Oh YD, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Orejudos W, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Pukhov O, Punzi G, Rakitine A, Reher D, Reichold A, Ribon A, Riegler W, Rimondi F, Ristori L, Riveline M, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Roy A, Ruiz A, Safonov A, St Denis R, Sakumoto WK, Saltzberg D, Sanchez C, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Sidoti A, Siegrist J, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takano T, Takashima R, Takikawa K, Tamburello P, Tanaka M, Tannenbaum B, Tecchio M, Tesarek R, Teng PK, Terashi K, Tether S, Thompson AS, Thurman-Keup R, Tipton P, Tkaczyk S, Toback D, Tollefson K, Tollestrup A, Tonelli D, Toyoda H, Trischuk W, de Troconiz JF, Tseng J, Turini N, Ukegawa F, Vaiciulis T, Valls J, Vejcik S, Velev G, Vidal R, Vila I, Vilar R, Volobouev I, Vucinic D, Wagner RG, Wagner RL, Wallace NB, Wang C, Wang MJ, Ward B, Waschke S, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC, Wicklund AB, Wicklund E, Wilkes T, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Wolinski S, Worm S, Wu X, Wyss J, Yagil A, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Yu Z, Zanetti A, Zetti F, Zucchelli S. Double diffraction dissociation at the Fermilab Tevatron collider. Phys Rev Lett 2001; 87:141802. [PMID: 11580642 DOI: 10.1103/physrevlett.87.141802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2001] [Indexed: 05/23/2023]
Abstract
We present results from a measurement of double diffraction dissociation in pp collisions at the Fermilab Tevatron collider. The production cross section for events with a central pseudorapidity gap of width Deltaeta(0)>3 (overlapping eta = 0) is found to be 4.43+/-0.02(stat)+/-1.18(syst) mb [ 3.42+/-0.01(stat)+/-1.09(syst) mb] at square root of (s) = 1800[630] GeV. Our results are compared with previous measurements and with predictions based on Regge theory and factorization.
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Affiliation(s)
- T Affolder
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Artikov A, Asakawa T, Ashmanskas W, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bachacou H, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Barone M, Bauer G, Bedeschi F, Belforte S, Bell WH, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bhatti A, Binkley M, Bisello D, Bishai M, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk SR, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Bortoletto D, Boudreau J, Brandl A, van den Brink S, Bromberg C, Brozovic M, Brubaker E, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Cabrera S, Calafiura P, Campbell M, Carithers W, Carlson J, Carlsmith D, Caskey W, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Chung YS, Ciobanu CI, Clark AG, Connolly A, Conway J, Cordelli M, Cranshaw J, Cropp R, Culbertson R, Dagenhart D, D'Auria S, DeJongh F, Dell'Agnello S, Dell'Orso M, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Dominguez A, Donati S, Done J, D'Onofrio M, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E, Erbacher R, Errede D, Errede S, Fan Q, Feild RG, Fernandez JP, Ferretti C, Field RD, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Fukui Y, Furic I, Galeotti S, Gallas A, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Gerdes DW, Giannetti P, Giromini P, Glagolev V, Glenzinski D, Gold M, Goldstein J, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Green C, Grim G, Gris P, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes da Costa J, Haas RM, Haber C, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Herndon M, Hill C, Hoffman KD, Holck C, Hollebeek R, Holloway L, Hughes R, Huston J, Huth J, Ikeda H, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Khazins D, Kikuchi T, Kilminster B, Kim BJ, Kim DH, Kim HS, Kim MJ, Kim SB, Kim SH, Kim YK, Kirby M, Kirk M, Kirsch L, Klimenko S, Koehn P, Kondo K, Konigsberg J, Korn A, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lancaster J, Lancaster M, Lander R, Lath A, Latino G, LeCompte T, Lee AM, Lee K, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Litvintsev DO, Lobban O, Lockyer N, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JA, Mayer J, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Menzione A, Mesropian C, Meyer A, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Mitselmakher G, Moggi N, Moore E, Moore R, Morita Y, Moulik T, Mulhearn M, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Nachtman J, Nagaslaev V, Nahn S, Nakada H, Nakano I, Nelson C, Nelson T, Neu C, Neuberger D, Newman-Holmes C, Ngan CY, Niu H, Nodulman L, Nomerotski A, Oh SH, Oh YD, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Orejudos W, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Pellett D, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Pukhov O, Punzi G, Rakitine A, Ratnikov F, Reher D, Reichold A, Ribon A, Riegler W, Rimondi F, Ristori L, Riveline M, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Roy A, Ruiz A, Safonov A, St Denis R, Sakumoto WK, Saltzberg D, Sanchez C, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Sidoti A, Siegrist J, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takano T, Takashima R, Takikawa K, Tamburello P, Tanaka M, Tannenbaum B, Tecchio M, Tesarek R, Teng PK, Terashi K, Tether S, Thompson AS, Thurman-Keup R, Tipton P, Tkaczyk S, Toback D, Tollefson K, Tollestrup A, Tonelli D, Toyoda H, Trischuk W, de Troconiz JF, Tseng J, Turini N, Ukegawa F, Vaiciulis T, Valls J, Vejcik S, Velev G, Veramendi G, Vidal R, Vila I, Vilar R, Volobouev I, von der Mey M, Vucinic D, Wagner RG, Wagner RL, Wallace NB, Wan Z, Wang C, Wang MJ, Ward B, Waschke S, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC, Wicklund AB, Wicklund E, Wilkes T, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Wolinski S, Worm S, Wu X, Wyss J, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Yu Z, Zanetti A, Zetti F, Zucchelli S. Measurement of d sigma/dM and forward-backward charge asymmetry for high-mass Drell-Yan e(+)e(-) pairs from pp macro collisions at square root of s = 1.8 TeV. Phys Rev Lett 2001; 87:131802. [PMID: 11580576 DOI: 10.1103/physrevlett.87.131802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2001] [Indexed: 05/23/2023]
Abstract
We report on a measurement of the mass dependence of the forward-backward charge asymmetry, A(FB), and production cross section d sigma/dM for e(+)e(-) pairs with mass M(ee)>40 GeV/c(2). The data sample consists of 108 pb(-1) of pp macro collisions at square root of s = 1.8 TeV taken by the Collider Detector at Fermilab during 1992-1995. The measured asymmetry and d sigma/dM are compared with the predictions of the standard model and a model with an extra Z' gauge boson.
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Affiliation(s)
- T Affolder
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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Berger MD, Lee AM, Simonette RA, Jackson BE, Roca AI, Singleton SF. Design and evaluation of a tryptophanless RecA protein with wild type activity. Biochem Biophys Res Commun 2001; 286:1195-203. [PMID: 11527427 DOI: 10.1006/bbrc.2001.5525] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The C-terminal domain of the Escherichia coli RecA protein contains two tryptophan residues whose native fluorescence emission provides an interfering background signal when other fluorophores such as 1,N(6)-ethenoadenine, 2-aminopurine and other tryptophan residues are used to probe the protein's activities. Replacement of the wild type tryptophans with nonfluorescent residues is not trivial because one tryptophan is highly conserved and the C-terminal domain functions in both DNA binding as well as interfilament protein-protein contact. We undertook the task of creating a tryptophanless RecA protein with WT RecA activity by selecting suitable amino acid replacements for Trp290 and Trp308. Mutant proteins were screened in vivo using assays of SOS induction and cell survival following UV irradiation. Based on its activity in these assays, the W290H-W308F W-less RecA was purified for in vitro characterization and functioned like WT RecA in DNA-dependent ATPase and DNA strand exchange assays. Spectrofluorometry indicates that the W290H-W308F RecA protein generates no significant emission when excited with 295-nm light. Based on its ability to function as wild type protein in vivo and in vitro, this dark RecA protein will be useful for future fluorescence experiments.
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Affiliation(s)
- M D Berger
- Department of Chemistry, Rice University, Houston, Texas 77005, USA
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Affolder T, Akimoto H, Akopian A, Albrow MG, Amaral P, Amendolia SR, Amidei D, Anikeev K, Antos J, Apollinari G, Arisawa T, Asakawa T, Ashmanskas W, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bailey MW, Bailey S, de Barbaro P, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Barone M, Bauer G, Bedeschi F, Belforte S, Bell WH, Bellettini G, Bellinger J, Benjamin D, Bensinger J, Beretvas A, Berge JP, Berryhill J, Bevensee B, Bhatti A, Binkley M, Bisello D, Bishai M, Blair RE, Blocker C, Bloom K, Blumenfeld B, Blusk SR, Bocci A, Bodek A, Bokhari W, Bolla G, Bonushkin Y, Bortoletto D, Boudreau J, Brandl A, van den Brink S, Bromberg C, Brozovic M, Bruner N, Buckley-Geer E, Budagov J, Budd HS, Burkett K, Busetto G, Byon-Wagner A, Byrum KL, Calafiura P, Campbell M, Carithers W, Carlson J, Carlsmith D, Caskey W, Cassada J, Castro A, Cauz D, Cerri A, Chan AW, Chang PS, Chang PT, Chapman J, Chen C, Chen YC, Cheng MT, Chertok M, Chiarelli G, Chirikov-Zorin I, Chlachidze G, Chlebana F, Christofek L, Chu ML, Chung YS, Ciobanu CI, Clark AG, Connolly A, Conway J, Cordelli M, Cranshaw J, Cronin-Hennessy D, Cropp R, Culbertson R, Dagenhart D, D'Auria S, DeJongh F, Dell'Agnello S, Dell'Orso M, Demortier L, Deninno M, Derwent PF, Devlin T, Dittmann JR, Donati S, Done J, Dorigo T, Eddy N, Einsweiler K, Elias JE, Engels E, Errede D, Errede S, Fan Q, Feild RG, Fernandez JP, Ferretti C, Field RD, Fiori I, Flaugher B, Foster GW, Franklin M, Freeman J, Friedman J, Fukui Y, Furic I, Galeotti S, Gallinaro M, Gao T, Garcia-Sciveres M, Garfinkel AF, Gatti P, Gay C, Gerdes DW, Giannetti P, Giromini P, Glagolev V, Gold M, Goldstein J, Gordon A, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Green C, Grim G, Gris P, Groer L, Grosso-Pilcher C, Guenther M, Guillian G, Guimaraes da Costa J, Haas RM, Haber C, Hafen E, Hahn SR, Hall C, Handa T, Handler R, Hao W, Happacher F, Hara K, Hardman AD, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Heinrich J, Heiss A, Herndon M, Hill C, Hoffman KD, Holck C, Hollebeek R, Holloway L, Hughes R, Huston J, Huth J, Ikeda H, Incandela J, Introzzi G, Iwai J, Iwata Y, James E, Jensen H, Jones M, Joshi U, Kambara H, Kamon T, Kaneko T, Karr K, Kasha H, Kato Y, Keaffaber TA, Kelley K, Kelly M, Kennedy RD, Kephart R, Khazins D, Kikuchi T, Kilminster B, Kim BJ, Kim DH, Kim HS, Kim MJ, Kim SH, Kim YK, Kirby M, Kirk M, Kirsch L, Klimenko S, Koehn P, Köngeter A, Kondo K, Konigsberg J, Kordas K, Korn A, Korytov A, Kovacs E, Kroll J, Kruse M, Kuhlmann SE, Kurino K, Kuwabara T, Laasanen AT, Lai N, Lami S, Lammel S, Lamoureux JI, Lancaster J, Lancaster M, Lander R, Latino G, LeCompte T, Lee AM, Lee K, Leone S, Lewis JD, Lindgren M, Liss TM, Liu JB, Liu YC, Lockyer N, Loken J, Loreti M, Lucchesi D, Lukens P, Lusin S, Lyons L, Lys J, Madrak R, Maeshima K, Maksimovic P, Malferrari L, Mangano M, Mariotti M, Martignon G, Martin A, Matthews JA, Mayer J, Mazzanti P, McFarland KS, McIntyre P, McKigney E, Menguzzato M, Menzione A, Mesropian C, Meyer A, Miao T, Miller R, Miller JS, Minato H, Miscetti S, Mishina M, Mitselmakher G, Moggi N, Moore E, Moore R, Morita Y, Moulik T, Mulhearn M, Mukherjee A, Muller T, Munar A, Murat P, Murgia S, Nachtman J, Nahn S, Nakada H, Nakaya T, Nakano I, Nelson C, Nelson T, Neu C, Neuberger D, Newman-Holmes C, Ngan CY, Niu H, Nodulman L, Nomerotski A, Oh SH, Ohmoto T, Ohsugi T, Oishi R, Okusawa T, Olsen J, Orejudos W, Pagliarone C, Palmonari F, Paoletti R, Papadimitriou V, Pappas SP, Partos D, Patrick J, Pauletta G, Paulini M, Paus C, Pescara L, Phillips TJ, Piacentino G, Pitts KT, Pompos A, Pondrom L, Pope G, Popovic M, Prokoshin F, Proudfoot J, Ptohos F, Pukhov O, Punzi G, Ragan K, Rakitine A, Reher D, Reichold A, Ribon A, Riegler W, Rimondi F, Ristori L, Riveline M, Robertson WJ, Robinson A, Rodrigo T, Rolli S, Rosenson L, Roser R, Rossin R, Roy A, Safonov A, St Denis R, Sakumoto WK, Saltzberg D, Sanchez C, Sansoni A, Santi L, Sato H, Savard P, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Scodellaro L, Scott A, Scribano A, Segler S, Seidel S, Seiya Y, Semenov A, Semeria F, Shah T, Shapiro MD, Shepard PF, Shibayama T, Shimojima M, Shochet M, Siegrist J, Signorelli G, Sill A, Sinervo P, Singh P, Slaughter AJ, Sliwa K, Smith C, Snider FD, Solodsky A, Spalding J, Speer T, Sphicas P, Spinella F, Spiropulu M, Spiegel L, Steele J, Stefanini A, Strologas J, Strumia F, Stuart D, Sumorok K, Suzuki T, Takano T, Takashima R, Takikawa K, Tamburello P, Tanaka M, Tannenbaum B, Taylor W, Tecchio M, Teng PK, Terashi K, Tether S, Thompson AS, Thurman-Keup R, Tipton P, Tkaczyk S, Tollefson K, Tollestrup A, Toyoda H, Trischuk W, de Troconiz JF, Tseng J, Turini N, Ukegawa F, Vaiciulis T, Valls J, Vejcik S, Velev G, Vidal R, Vilar R, Volobouev I, Vucinic D, Wagner RG, Wagner RL, Wahl J, Wallace NB, Walsh AM, Wang C, Wang MJ, Watanabe T, Waters D, Watts T, Webb R, Wenzel H, Wester WC, Wicklund AB, Wicklund E, Wilkes T, Williams HH, Wilson P, Winer BL, Winn D, Wolbers S, Wolinski D, Wolinski J, Wolinski S, Worm S, Wu X, Wyss J, Yagil A, Yao W, Yeh GP, Yeh P, Yoh J, Yosef C, Yoshida T, Yu I, Yu S, Yu Z, Zanetti A, Zetti F, Zucchelli S. Measurement of the top quark p(T) distribution. Phys Rev Lett 2001; 87:102001. [PMID: 11531473 DOI: 10.1103/physrevlett.87.102001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2000] [Indexed: 05/23/2023]
Abstract
We have measured the p(T) distribution of top quarks that are pair produced in pp collisions at sqrt[s] = 1.8 TeV using a sample of tt decays in which we observe a single high- p(T) charged lepton, a neutrino, and four or more jets. We use a likelihood technique that corrects for the experimental bias introduced due to event reconstruction and detector resolution effects. The observed distribution is consistent with the standard model prediction. We use these data to place limits on the production of high- p(T) top quarks suggested in some models of anomalous top quark pair production.
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Affiliation(s)
- T Affolder
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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48
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Abstract
The effects of augmented feedback on perceptions of ability (SPA), practice behaviors, and performance during motor skill instruction of a novel task were investigated. Fourth-grade students (N = 103) were randomly assigned to one of four conditions: (a) no feedback; (b) motivational feedback; (c) task feedback; or (d) motivation and task feedback. They then practiced simple and complex cupstacking skills. On a relatively simple task, the type of feedback did not have a significant effect on children's SPA, practice behaviors, or performance; but on a more complex task, differential effects of feedback were evident. Results indicate that informational feedback is an important factor in facilitating student engagement, fostering positive perceptions of ability, and ultimately improving performance on a challenging task.
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Affiliation(s)
- K B Fredenburg
- Department of Health, Human Performance and Recreation, Baylor University, USA.
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Rockman CB, Svahn JK, Willis DJ, Lamparello PJ, Adelman MA, Jacobowitz GR, Lee AM, Gagne P, Deutsch E, Landis R, Riles TS. Carotid endarterectomy in patients 55 years of age and younger. Ann Vasc Surg 2001; 15:557-62. [PMID: 11665441 DOI: 10.1007/s10016-001-0029-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Prior studies have suggested that young patients may be more prone to recurrent disease after carotid endarterectomy (CEA). The goal of this study was to review a series of CEAs performed on younger patients (< or = 55 years) and to determine if these patients are more likely to develop recurrent stenosis. A review was conducted of CEAs performed from 1985 through 1994. Analysis was performed on a study group of 94 young patients who underwent 109 CEAs during this time. A control group of 222 patients older than 55 years who underwent 256 CEAs during the years 1991 through 1993 was selected for comparison. During a mean of nearly 4 years of follow-up, younger patients were significantly more likely to experience a late failure of CEA, including total occlusion of the operated artery, or recurrent stenosis requiring redo surgery. Careful patient evaluation is important in choosing younger patients who require CEA. Implications of these data include mandating careful noninvasive follow-up examinations for younger patients undergoing CEA.
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Affiliation(s)
- C B Rockman
- Division of Vascular Surgery, New York University Medical Center, 530 First Avenue, Suite 6F, New York, NY 10016, USA.
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50
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Abstract
The present study explored the interplay of psychosocial, gender, and cultural factors on Chinese married women's condom use. A total of 433 Chinese married women residing in Hong Kong participated in the study. Correlation results showed that participants' conservative gender attitudes toward sexuality and sexual decision making were related to less accurate HIV/AIDS knowledge and less concern about contacting the disease from their husbands. About 34.4% of the sexually active participants never used condoms in the past 6 months, and current condom use was associated with egalitarian gender attitudes, positive feelings about condom use, and concerns about contacting HIV/AIDS from their husbands. Among all participants, 32.5% reported that they would not use condoms in their future sexual encounters. Future condom use was related to shorter duration of marriage, accurate HIV/AIDS knowledge, egalitarian gender attitudes, current condom use, and positive feelings about condom use. Results from the logistic regression analyses showed that egalitarian gender attitudes toward sexuality and positive feelings about condom use were the most salient predictors for current and future condom use.
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Affiliation(s)
- C S Tang
- Department of Psychology, The Chinese University of Hong Kong, Shatin, NT.
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