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Chen DJ, Jiang H, Yang H, He Q, Wang HP, Chen JH. Unusual cause of proteinuria and re-renal failure after kidney transplantation: de novo localized AL amyloidosis in renal allograft. Int Urol Nephrol 2009; 42:507-11. [DOI: 10.1007/s11255-009-9635-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2009] [Accepted: 08/12/2009] [Indexed: 11/29/2022]
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277
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Wang JH, He Q, Liu YL, Hahn RG. Pulmonary edema in the transurethral resection syndrome induced with mannitol 5%. Acta Anaesthesiol Scand 2009; 53:1094-6. [PMID: 19397498 DOI: 10.1111/j.1399-6576.2009.01983.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two patients developed the transurethral resection (TUR) syndrome after having absorbed mannitol 5% during TUR of the prostate. Both developed pulmonary edema and became severely hypoatremic (lowest serum sodium 99 and 97 mmol/l, respectively). Hypertonic saline was infused to raise the serum sodium level and plasma volume expansion used to combat hypotension. One patient also required positive-pressure ventilation and intravenous administration of norepinephrine. Both patients recovered completely.
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278
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Hua X, Wang W, Yin W, He Q, Jin B, Li J, Chen J, Fu C. Phylogeographical analysis of an estuarine fish, Salanx ariakensis (Osmeridae: Salanginae) in the north-western Pacific. JOURNAL OF FISH BIOLOGY 2009; 75:354-367. [PMID: 20738543 DOI: 10.1111/j.1095-8649.2009.02323.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This study extended the geographic coverage of a previous study to explore population genetic structure and demographic history in the Ariake icefish Salanx ariakensis from three populations of continental coastlines and one island population in the north-western Pacific based on a partial sequence of the mitochondrial cytochrome b gene. The S. ariakensis showed high genetic diversity and strong genetic structure. Phylogenetic analysis showed a shallow gene tree with no clear phylogeographical structure. Contiguous range expansion and restricted gene flow were inferred to be main population events by nested-clade analysis. Significant genetic differentiations between populations could be attributable to negligible gene flow by coalescent analysis. High nucleotide diversity of each population was due to geographic mixing of heterogenous haplotypes during lowering sea levels of the Pleistocene. These findings indicate that cycles of geographic isolation and secondary contact happened in the Pleistocene glacial-interglacial cycles shaping genetic structure and population demography of S. ariakensis.
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279
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Jiang H, Wu J, Zhang X, Wu D, Huang H, He Q, Wang R, Wang Y, Zhang J, Chen J. Kidney transplantation from hepatitis B surface antigen positive donors into hepatitis B surface antibody positive recipients: a prospective nonrandomized controlled study from a single center. Am J Transplant 2009; 9:1853-8. [PMID: 19538486 DOI: 10.1111/j.1600-6143.2009.02707.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The number of patients on renal transplant waiting list is increasing rapidly in many countries, exacerbating the shortage of organs. We conducted a study to evaluate the safety and efficacy of deceased-donor kidney transplantation from hepatitis B surface antigen (HBsAg)-positive (+) donors into hepatitis B surface antibody (anti-HBs)-positive (+) recipients. Sixty-five patients received grafts from HBsAg(+) donors, and 308 subjects received grafts from HBsAg-negative(-) donors. Posttransplantation, recipients with HBsAg(-) grafts or HBsAg(+) grafts received 400 U of hepatitis B immunoglobulin once and twice, respectively. The seven recipients who received grafts from hepatitis B virus (HBV) DNA(+) donors were treated with hepatitis B immunoglobulin 400 U weekly for 3 months and lamivudine 100 mg daily for 6 months. All patients were monitored for liver function and hepatitis B viral status. The follow-up period was 38.7 +/- 15.4 months. Although two recipients developed de novo HBV infection, neither patient developed severe liver dysfunction nor died. The incidence of liver injury (39/65 vs. 207/308, chi-square test, p > 0.05) and survival (log-rank test, p > 0.05) did not differ between the groups. We conclude that anti-HBs(+) recipients receiving HBsAg(+) grafts did as well as those receiving HBsAg(-) grafts.
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280
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Deng YQ, Tao ZZ, Kong YG, Xiao BK, Chen SM, Xu Y, Wang Y, He Q. Association between single nucleotide polymorphisms of surfactant protein D and allergic rhinitis in Chinese patients. ACTA ACUST UNITED AC 2009; 73:546-52. [DOI: 10.1111/j.1399-0039.2009.01232.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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281
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Yang CH, Seidel J, Kim SY, Rossen PB, Yu P, Gajek M, Chu YH, Martin LW, Holcomb MB, He Q, Maksymovych P, Balke N, Kalinin SV, Baddorf AP, Basu SR, Scullin ML, Ramesh R. Electric modulation of conduction in multiferroic Ca-doped BiFeO3 films. NATURE MATERIALS 2009; 8:485-93. [PMID: 19396162 DOI: 10.1038/nmat2432] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2008] [Accepted: 03/20/2009] [Indexed: 05/12/2023]
Abstract
Many interesting materials phenomena such as the emergence of high-Tc superconductivity in the cuprates and colossal magnetoresistance in the manganites arise out of a doping-driven competition between energetically similar ground states. Doped multiferroics present a tantalizing evolution of this generic concept of phase competition. Here, we present the observation of an electronic conductor-insulator transition by control of band-filling in the model antiferromagnetic ferroelectric BiFeO3 through Ca doping. Application of electric field enables us to control and manipulate this electronic transition to the extent that a p-n junction can be created, erased and inverted in this material. A 'dome-like' feature in the doping dependence of the ferroelectric transition is observed around a Ca concentration of approximately 1/8, where a new pseudo-tetragonal phase appears and the electric modulation of conduction is optimized. Possible mechanisms for the observed effects are discussed on the basis of the interplay of ionic and electronic conduction. This observation opens the door to merging magnetoelectrics and magnetoelectronics at room temperature by combining electronic conduction with electric and magnetic degrees of freedom already present in the multiferroic BiFeO3.
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282
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Cheng J, Zhang W, Zhang XH, He Q, Tao XJ, Chen JH. ACEI/ARB therapy for IgA nephropathy: a meta analysis of randomised controlled trials. Int J Clin Pract 2009; 63:880-8. [PMID: 19490198 DOI: 10.1111/j.1742-1241.2009.02038.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Published reports examining the efficacy of RAS blockers: angiotensin converting-enzyme inhibitor (ACEI) and angiotensin II receptor blocker (ARB) agents for preserving renal function in IgA nephropathy (IgAN) have yielded conflicting results. To evaluate systematically the effects of ACEI/ARB agents on IgAN, we conducted a meta analysis of published randomised controlled trials (RCTs). METHODS MEDLINE, EMBASE, the Cochrane Library and article reference lists were searched for RCTs that compared ACEI/ARB with placebo and any other antihypertensive agents or non-immunosuppressive agents for treating IgAN. The quality of the studies was evaluated with the method of intention to treat analysis and allocation concealment, as well as with the Jadad method. Meta analyses were performed on the outcomes of proteinuria and renal function in patients with IgAN. RESULTS Eleven RCTs involving 585 patients were included in the review. Seven trials used placebo/no treatment as controls. Four trials used other antihypertensive agents as controls. Overall, ACEI/ARB agents had statistically significant effects on protecting renal function(p < 0.00001) and reduction of proteinuria (p < 0.00001) when compared with control group. Tests for heterogeneity showed no difference in effect among the studies. Systolic and diastolic blood pressure, glomerular filtration rate (GFR), age, did not influence treatment response. ACEI/ARB agents were well tolerated. CONCLUSIONS The current cumulative evidence suggests that ACEI/ARB agents had statistically significant effects on protecting renal function and reduction of proteinuria in patients with IgAN when compared with control groups. ACEI/ ARB agents are a promising medication and should be investigated further.
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283
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Wang R, Wu J, Wang Y, Huang H, He Q, Chen J. Aspergillus infection limited to the anastomosed artery following renal transplantation: a report of 4 cases. Transpl Infect Dis 2009; 11:363-6. [PMID: 19497076 DOI: 10.1111/j.1399-3062.2009.00402.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We present 4 cases of Aspergillus fumigatus infection limited to the anastomosed artery following renal transplantation. All grafts were nephrectomized. Two patients received 2 weeks of itraconazole therapy; both showing recurrence of pseudoaneurysms following discontinuation of therapy. Another 2 patients received 3 months of itraconazole therapy without recurrence of pseudoaneurysms. Surgical interventions were life saving. Resection of infected tissues and 3 months of antifungal therapy seemed to give better results than shorter antifungal strategies.
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284
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Chen L, Homesley HD, Scribner DR, Cantuaria GH, He Q, Cheek RL, Whitehead CM, Doobay H, Fischer TJ. Performance of a biomarker panel to identify malignancy within a pelvic mass population. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.5566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
5566 Background: We previously reported the performance of biomarker combinations that displayed utility in identifying ovarian cancer from normal sera and in monitoring for disease recurrence. In this study, we evaluated the performance of a subset of these markers in differentiating ovarian cancer from benign pelvic mass. Methods: Pre-operative serum samples were prospectively collected from 254 patients undergoing surgical evaluation for differential diagnosis of a pelvic mass. Pathology showed 76 cases of epithelial ovarian carcinoma (EOC), 17 borderline tumors, 11 other gynecologic cancers, and 150 benign masses. 18 (23.7%) of the EOC patients had stage I tumors; 6 (7.9%) stage II; 44 (57.9%) stage III; and 8 (10.5%) stage IV. Serum levels of CA125, HE4, glycodelin, SLPI, MMP7, and Plau-R were ascertained. Biomarker performance was evaluated by a logistic regression model and leave one out cross-validation analysis. All calculations compared the benign vs. EOC and borderline tumor populations. Results: Individual biomarker sensitivity ranged from 28% to 77% at 85% specificity. The combination of CA125, HE4 and glycodelin exhibited the highest overall performance in identifying malignancy from benign masses, demonstrating 80% sensitivity, 80% specificity in patients <55 years, and 89% sensitivity, 80% specificity in patients ≥55. Total cohort performance was 85% sensitivity and 80% specificity. Glycodelin identified 7/22 CA125 and HE4 double negative patients, 5/7 of these patients were early stage (borderline, I or II), while only adding 4/150 false positive cases. Conclusions: Biomarker analysis within this test cohort demonstrates potential clinical utility in the differential diagnosis of pelvic mass patients, especially for the detection of early stage disease. The addition of glycodelin improved the detection of early stage cancer in sera that were negative for both HE4 and CA125. [Table: see text]
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Vicentini F, Giusti A, Rovetta A, Fan X, He Q, Zhu M, Liu B. Sensorized waste collection container for content estimation and collection optimization. WASTE MANAGEMENT (NEW YORK, N.Y.) 2009; 29:1467-1472. [PMID: 19103480 DOI: 10.1016/j.wasman.2008.10.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2008] [Revised: 09/10/2008] [Accepted: 10/21/2008] [Indexed: 05/27/2023]
Abstract
The concurrent effects of a fast national growth rate, of a large and dense residential area and a pressing demand for urban environmental protection create a challenging framework for waste management in Pudong New Area, Shanghai. The complexity of context and procedures is indeed a primary concern of local municipal authorities due to problems related to the collection, transportation and processing of residential solid waste. In order to design and implement a suitable urban solid waste system, the first task is to forecast the quantity and variance of solid waste as it relates to residential population, consumer index, season, etc. The system here discussed addresses exactly these issues, by means of an intelligent, sensorized container. The container has been prepared and tested in the Pudong New Area, Shanghai.
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286
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He Q, Wang Y, Lin P, Raymond HF, Li Y, Yang F, Zhao J, Li J, Ling L, McFarland W. High prevalence of risk behaviour concurrent with links to other high-risk populations: a potentially explosive HIV epidemic among men who have sex with men in Guangzhou, China. Sex Transm Infect 2009; 85:383-90. [PMID: 19357129 DOI: 10.1136/sti.2009.035808] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES HIV disproportionately affects men who have sex with men (MSM), but HIV prevalence among MSM in Guangzhou has not shown the rapid increasing trend as it has elsewhere in China. The aim of this study is to detect the epidemic and to determine the characteristics of MSM in Guangzhou susceptible to HIV. METHODS A cross-sectional survey with serological testing for HIV, syphilis, HBV and HCV through long-chain referral sampling strategy to help control the bias generated from non-statistic sampling. RESULTS The most important features of MSM in Guangzhou are being young and mobile, and of comparable education and income level to that of the general population. The HIV prevalence was 1.3% (95% CI 0.3 to 2.7%) in 2006. Many HIV risk factors were identified: low awareness of HIV risk perception and prevention, high prevalence of diverse, multiple partners and versatile sexual role, more than half of them actively having sex with women, low persistent condom use with both male and female partners, commercial sex and one out of 27 practising needle or syringe sharing during illicit drug use. CONCLUSION HIV has been introduced into MSM in Guangzhou. Demographic and behavioural risk factors and overlapping risk populations contribute to a potentially rapidly rising epidemic among MSM and the potential for a bridge to female partners in Guangzhou if timely and effective interventions are not implemented.
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Seidel J, Martin LW, He Q, Zhan Q, Chu YH, Rother A, Hawkridge ME, Maksymovych P, Yu P, Gajek M, Balke N, Kalinin SV, Gemming S, Wang F, Catalan G, Scott JF, Spaldin NA, Orenstein J, Ramesh R. Conduction at domain walls in oxide multiferroics. NATURE MATERIALS 2009; 8:229-34. [PMID: 19169247 DOI: 10.1038/nmat2373] [Citation(s) in RCA: 392] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2008] [Accepted: 12/22/2008] [Indexed: 05/14/2023]
Abstract
Domain walls may play an important role in future electronic devices, given their small size as well as the fact that their location can be controlled. Here, we report the observation of room-temperature electronic conductivity at ferroelectric domain walls in the insulating multiferroic BiFeO(3). The origin and nature of the observed conductivity are probed using a combination of conductive atomic force microscopy, high-resolution transmission electron microscopy and first-principles density functional computations. Our analyses indicate that the conductivity correlates with structurally driven changes in both the electrostatic potential and the local electronic structure, which shows a decrease in the bandgap at the domain wall. Additionally, we demonstrate the potential for device applications of such conducting nanoscale features.
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Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Aquines O, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Potlia V, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Selen M, White EJ, Wiss J. Observation of D+ --> etae + nue. PHYSICAL REVIEW LETTERS 2009; 102:081801. [PMID: 19257732 DOI: 10.1103/physrevlett.102.081801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2008] [Indexed: 05/27/2023]
Abstract
Using a 281 pb-1 data sample collected at the psi(3770) resonance with the CLEO-c detector at the Cornell Electron Storage Ring, we report the first observation of D+ --> etae + nue. We also set upper limits for D+ --> eta'e + nue and D + --> varphie + nue that are about 2 orders of magnitude more restrictive than those obtained by previous experiments.
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289
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Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Robichaud AN, Tatishvili G, Briere RA, Vogel H, Onyisi PUE, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Yelton J, Rubin P, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tan BJY, Tomaradze A, Libby J, Martin L, Powell A, Wilkinson G, Mendez H, Ge JY, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Ecklund KM. Observation of eta' decays to pi+pi-pi0 and pi+pi-e+e-. PHYSICAL REVIEW LETTERS 2009; 102:061801. [PMID: 19257578 DOI: 10.1103/physrevlett.102.061801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2008] [Indexed: 05/27/2023]
Abstract
Using psi(2S)-->pi;{+}pi;{-}J/psi, J/psi-->gammaeta;{'} events acquired with the CLEO-c detector at the CESR e;{+}e;{-} collider, we make the first observations of the decays eta;{'}-->pi;{+}pi;{-}pi;{0} and eta;{'}-->pi;{+}pi;{-}e;{+}e;{-}, measuring absolute branching fractions (37_{-9};{+11}+/-4)x10;{-4} and (25_{-9};{+12}+/-5)x10;{-4}, respectively. For eta;{'}-->pi;{+}pi;{-}pi;{0}, this result probes the mechanism of isospin violation and the roles of pi;{0}/eta/eta;{'}-mixing and final state rescattering in strong decays. We also set upper limits on branching fractions for eta;{'} decays to pi;{+}pi;{-}micro;{+}micro;{-}, 2(pi;{+}pi;{-}), pi;{+}pi;{-}2pi;{0}, 2(pi;{+}pi;{-})pi;{0}, 3(pi;{+}pi;{-}), and invisible final states.
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290
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Xu Y, Benlimame N, Su J, He Q, Alaoui-Jamali MA. Regulation of focal adhesion turnover by ErbB signalling in invasive breast cancer cells. Br J Cancer 2009; 100:633-43. [PMID: 19190626 PMCID: PMC2653743 DOI: 10.1038/sj.bjc.6604901] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
A crucial early event by which cancer cells switch from localised to invasive phenotype is initiated by the acquisition of autonomous motile properties; a process driven by dynamic assembly and disassembly of multiple focal adhesion (FA) proteins, which mediate cell–matrix attachments, extracellular matrix degradation, and serve as traction sites for cell motility. We have reported previously that cancer cell invasion induced by overexpression of members of the ErbB tyrosine kinase receptors, including ErbB2, is dependent on FA signalling through FA kinase (FAK). Here, we show that ErbB2 receptor signalling regulates FA turnover, and cell migration and invasion through the Src–FAK pathway. Inhibition of the Src–FAK signalling in ErbB2-positive cells by Herceptin or RNA interference selectively regulates FA turnover, leading to enhanced number and size of peripherally localised adhesions and inhibition of cell invasion. Inhibition of ErbB2 signalling failed to regulate FA and cell migration and invasion in cells lacking FAK or Src but gains this activity after restoration of these proteins. Taken together, our results show a regulation of FA turnover by ErbB2 signalling.
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291
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Lau KW, He Q, Ding ZP, Johan A. Safety and efficacy of angiography-guided stent placement in small native coronary arteries of < 3.0 mm in diameter. Clin Cardiol 2009; 20:711-6. [PMID: 9259164 PMCID: PMC6655322 DOI: 10.1002/clc.4960200809] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND AND HYPOTHESIS Increased operator experience, greater insight in stent deployment techniques, and improved poststent medication regimen have significantly reduced the risk of thrombotic stent closure following stent placement in large coronary arteries (> or = 3.0 mm in diameter). Whether equally favorable results are afforded by stent placement in small vessels (< 3.0 mm), however, remains unclear. Accordingly, the aim of this study was the specific examination of the risk of stent placement in small native coronary vessels, using stent deployment technique consisting of supplementary dilatations with larger balloons or high-pressure inflations, and aggressive aspirin-ticlopidine and short-term oral anticoagulation poststent therapy. METHODS Forty-seven balloon-expandable stents (20 Gianturco-Roubin, 21 NIR, 6 Palmaz-Schatz) were successfully implanted without intravascular guidance in 45 native coronary arteries (mean reference diameter of 2.5 mm) in 44 consecutive patients (31 men, 13 men), the majority of whom (87%) were stented for the treatment of failed or suboptimal balloon angioplasty outcome. RESULTS Successful stent placement reduced the lesion diameter stenosis from 91 +/- 9% to 3 +/- 7% (p = 0.0001). There were no early stent thrombosis or major cardiovascular events prior to hospital discharge. During a 12-month follow-up period, most patients remained symptomatically improved and no myocardial infarction, stroke, or death was observed. Five-month angiographic reassessment revealed an in-stent restenosis rate of 41%, which was higher in vessels < or = 2.5 mm in size (47 vs. 33% for vessels > 2.5 mm, p = 0.2747). CONCLUSIONS In selected patients with small native coronary vessels < 3.0 mm in diameter, angiography-guided optimal stent placement is associated with a low risk of stent thrombosis and bleeding complications. However, the in-stent restenosis rate is high with the stents used in this study.
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292
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Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Lopez A, Mendez H, Ramirez J, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J. J/psi and psi(2S) Radiative Transitions to eta_{c}. PHYSICAL REVIEW LETTERS 2009; 102:011801. [PMID: 19257180 DOI: 10.1103/physrevlett.102.011801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2008] [Indexed: 05/27/2023]
Abstract
Using 2.45x10;{7} psi(2S) decays collected with the CLEO-c detector at the Cornell Electron Storage Ring we present the most precise measurements of magnetic dipole transitions in the charmonium system. We measure B(psi(2S)-->gammaeta_{c})=(4.32+/-0.16+/-0.60)x10;{-3}, B(J/psi-->gammaeta_{c})/B(psi(2S)-->gammaeta_{c})=4.59+/-0.23+/-0.64, and B(J/psi-->gammaeta_{c})=(1.98+/-0.09+/-0.30)%. We observe a distortion in the eta_{c} line shape due to the photon-energy dependence of the magnetic dipole transition rate. We find that measurements of the eta_{c} mass are sensitive to the line shape, suggesting an explanation for the discrepancy between measurements of the eta_{c} mass in radiative transitions and other production mechanisms.
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293
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He Q, Zaquine I, André R, Roosen G, Frey R. Efficient Bragg diffraction in thin semiconductor two-dimensional gratings. OPTICS LETTERS 2008; 33:2868-2870. [PMID: 19037455 DOI: 10.1364/ol.33.002868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Highly improved diffraction properties are demonstrated in a two-dimensional [2D] grating consisting of a transmission grating optically recorded in a semiconductor one-dimensional photonic crystal (1D-PC). Near unity internal diffraction efficiency, high wavelength selectivity, and Bragg diffraction regime operation are demonstrated when the read beam is set at Bragg incidence on the transmission grating while its wavelength corresponds to the band edge of the 3 microm thick 1D-PC. When the 2D grating is grown on a Bragg mirror, a single diffracted beam is obtained, which makes the device promising for optical signal processing.
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Iv R, He Q, Wang H, Jin J, Chen Y, Chen J. High Serum Level of the Soluble CD30 Identifies Chinese Kidney Transplant Recipients at High Risk of Unfavorable Outcome. Transplant Proc 2008; 40:3375-80. [DOI: 10.1016/j.transproceed.2008.03.173] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2007] [Accepted: 03/26/2008] [Indexed: 11/15/2022]
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295
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Love W, Savinov V, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Horwitz N, Khalil S, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ecklund KM. Search for lepton flavor violation in upsilon decays. PHYSICAL REVIEW LETTERS 2008; 101:201601. [PMID: 19113327 DOI: 10.1103/physrevlett.101.201601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2008] [Indexed: 05/27/2023]
Abstract
In this Letter, we describe a search for lepton flavor violation (LFV) in the bottomonium system. We search for leptonic decays Upsilon(nS)-->mutau (n=1, 2, and 3) using the data collected with the CLEO III detector. We identify the tau lepton using its leptonic decay nu_{tau}nu[over ]_{e}e and utilize multidimensional likelihood fitting with probability density function shapes measured from independent data samples. We report our estimates of 95% C.L. upper limits on LFV branching fractions of Upsilon mesons. We interpret our results in terms of the exclusion plot for the energy scale of a hypothetical new interaction versus its effective LFV coupling in the framework of effective field theory.
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He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Xavier JV, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Martin L, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Mendez H, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J. Observation of Upsilon(2S)-->etaUpsilon(1S) and search for related transitions. PHYSICAL REVIEW LETTERS 2008; 101:192001. [PMID: 19113261 DOI: 10.1103/physrevlett.101.192001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2008] [Indexed: 05/27/2023]
Abstract
We report the first observation of Upsilon(2S)-->etaUpsilon(1S), with a branching fraction B=(2.1(-0.6)+0.7(stat)+/-0.3(syst)) x 10(-4) and a statistical significance 5.3sigma. Data were acquired with the CLEO III detector at the CESR e+e(-) symmetric collider. This is the first process observed involving a b-quark spin flip. For related transitions, 90% confidence limits in units of 10(-4) are B(Upsilon(2S)-->pi0Upsilon(1S)) < 1.8, B(Upsilon(3S)-->etaUpsilon(1S)) < 1.8, B(Upsilon(3S)-->pi0Upsilon(1S)) < 0.7, and B(Upsilon(3S)-->pi0Upsilon(2S)) < 5.1.
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297
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Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Lopez A, Mendez H, Ramirez J, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P. Precision measurement of the mass of the hc(1P1) state of charmonium. PHYSICAL REVIEW LETTERS 2008; 101:182003. [PMID: 18999820 DOI: 10.1103/physrevlett.101.182003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2008] [Indexed: 05/27/2023]
Abstract
A precision measurement of the mass of the h_{c}(1P1) state of charmonium has been made using a sample of 24.5x10;{6} psi(2S) events produced in e;{+}e;{-} annihilation at the Cornell Electron Storage Ring (CESR). The reaction used was psi(2S)-->pi;{0}h_{c}, pi;{0}-->gammagamma, h_{c}-->gammaeta_{c}, and the reaction products were detected in the CLEO-c detector. Data have been analyzed both for the inclusive reaction and for the exclusive reactions in which eta_{c} decays are reconstructed in 15 hadronic decay channels. Consistent results are obtained in the two analyses. The averaged results of the present measurements are M(h_{c})=3525.28+/-0.19(stat.)+/-0.12(syst.) MeV, and B(psi(2S)-->pi;{0}h_{c})xB(h_{c}-->gammaeta_{c})=(4.19+/-0.32+/-0.45)x10;{-4}. Using the ;{3}P_{J} centroid mass, DeltaM_{hf}(1P) identical withM(chi_{cJ})-M(h_{c})=+0.02+/-0.19+/-0.13 MeV.
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Libby J, Martin L, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Mendez H, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A. Measurement of the eta'-meson mass using J/psi-->gammaeta'. PHYSICAL REVIEW LETTERS 2008; 101:182002. [PMID: 18999819 DOI: 10.1103/physrevlett.101.182002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2008] [Indexed: 05/27/2023]
Abstract
We measure the mass of the eta;{'} meson using psi(2S)-->pi;{+}pi;{-}J/psi, J/psi-->gammaeta;{'} events acquired with the CLEO-c detector operating at the CESR e;{+}e;{-} collider. Using three decay modes, eta;{'}-->rho;{0}gamma, eta;{'}-->pi;{+}pi;{-}eta with eta-->gammagamma, and eta;{'}-->pi;{+}pi;{-}eta with eta-->pi;{+}pi;{-}pi;{0}, we find M_{eta;{'}}=957.793+/-0.054+/-0.036 MeV, in which the uncertainties are statistical and systematic, respectively. This result is consistent with but substantially more precise than the current world average.
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299
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Bennett JV, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tan BJY, Tomaradze A, Libby J, Martin L, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Mendez H, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Tatishvili G, Vogel H, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J. Observation of chicJ radiative decays to light vector mesons. PHYSICAL REVIEW LETTERS 2008; 101:151801. [PMID: 18999588 DOI: 10.1103/physrevlett.101.151801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2008] [Indexed: 05/27/2023]
Abstract
Using a total of 2.74 x 10(7) decays of the psi(2S) collected with the CLEO-c detector, we present a study of chi(cJ)-->gammaV, where V=rho(0), omega, phi. The transitions chi(c1)-->gammarho(0 and chi(c1)-->gammaomega are observed with B(chi(c1)-->gammarho(0))=(2.43+/-0.19+/-0.22) x 10(-4) and B(chi(c1)-->gammaomega)=(8.3+/-1.5+/-1.2) x 10(-5). In the chi(c1)-->gammarho(0) transition, the final state meson is dominantly longitudinally polarized. Upper limits on the branching fractions of other chi(cJ) states to light vector mesons are presented.
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300
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Love W, Savinov V, Mendez H, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Martin L, Powell A, Wilkinson G, Ecklund KM. Search for very light CP-odd Higgs Boson in radiative decays of Upsilon(1S). PHYSICAL REVIEW LETTERS 2008; 101:151802. [PMID: 18999589 DOI: 10.1103/physrevlett.101.151802] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2008] [Indexed: 05/27/2023]
Abstract
We search for a non-SM-like CP-odd Higgs boson (a(1)(0)) decaying to tau(+)tau(-) or mu(+)mu(-) in radiative decays of the Upsilon(1S). No significant signal is found, and upper limits on the product branching ratios are set. Our tau(+)tau(-) results are almost 2 orders of magnitude more stringent than previous upper limits. Our data provide no evidence for a Higgs state with a mass of 214 MeV decaying to mu(+)mu(-), previously proposed as an explanation for 3 Sigma(+)-->pmu(+)mu(-) events observed by the HyperCP experiment. Our results constrain NMSSM models.
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