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Krajnak K, Waugh S, Welcome D, Xu XS, Warren C, McKinney W, Dong RG. Effects of whole-body vibration on reproductive physiology in a rat model of whole-body vibration. J Toxicol Environ Health A 2022; 85:953-971. [PMID: 36165131 PMCID: PMC9885295 DOI: 10.1080/15287394.2022.2128954] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Findings from epidemiological studies suggest that occupational exposure to whole-body vibration (WBV) may increase the risk of miscarriage and contribute to a reduction in fertility rates in both men and women. However, workers exposed to WBV may also be exposed to other risk factors that contribute to reproductive dysfunction. The goal of this experiment was to examine the effects of WBV on reproductive physiology in a rat model. Male and female rats were exposed to WBV at the resonant frequency of the torso (31.5 Hz, 0.3 g amplitude) for 4 hr/day for 10 days. WBV exposure resulted in a significant reduction in number of developing follicles, and decrease in circulating estradiol concentrations, ovarian luteinizing hormone receptor protein levels, and marked changes in transcript levels for several factors involved in follicular development, cell cycle, and steroidogenesis. In males, WBV resulted in a significant reduction in spermatids and circulating prolactin levels, elevation in number of males having higher circulating testosterone concentrations, and marked alterations in levels of transcripts associated with oxidative stress, inflammation, and factors involved in regulating the cell cycle. Based upon these findings data indicate that occupational exposure to WBV contributes to adverse alterations in reproductive physiology in both genders that may lead to reduction in fertility.
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Affiliation(s)
- K Krajnak
- Physical Effects Research Branch, National Institute for Occupational Safety and Health, Morgantown, West Virginia
| | - S Waugh
- Physical Effects Research Branch, National Institute for Occupational Safety and Health, Morgantown, West Virginia
| | - D Welcome
- Physical Effects Research Branch, National Institute for Occupational Safety and Health, Morgantown, West Virginia
| | - X S Xu
- Physical Effects Research Branch, National Institute for Occupational Safety and Health, Morgantown, West Virginia
| | - C Warren
- Physical Effects Research Branch, National Institute for Occupational Safety and Health, Morgantown, West Virginia
| | - W McKinney
- Physical Effects Research Branch, National Institute for Occupational Safety and Health, Morgantown, West Virginia
| | - R G Dong
- Physical Effects Research Branch, National Institute for Occupational Safety and Health, Morgantown, West Virginia
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Kelly TW, Davidson IA, Warren C, Brooks WSM, Foster MJ, Poletti F, Richardson DJ, Horak P, Wheeler NV. Sub-ppm gas phase Raman spectroscopy in an anti-resonant hollow core fiber. Opt Express 2022; 30:43317-43329. [PMID: 36523032 DOI: 10.1364/oe.473887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/14/2022] [Indexed: 06/17/2023]
Abstract
We demonstrate recent progress in the development of a Raman gas sensor using a single cladding ring anti-resonant hollow core micro-structured optical fiber (HC-ARF) and a low power pump source. The HC-ARF was designed specifically for low attenuation and wide bandwidth in the visible spectral region and provided low loss at both the pump wavelength (532 nm) and Stokes wavelengths up to a Raman shift of 5000 cm-1. A novel selective core pressurization scheme was also implemented to further reduce the confinement loss, improving the Raman signal enhancement by a factor of 1.9 compared to a standard fiber filling scheme. By exploiting longer lengths of fiber, direct detection of both methane and hydrogen at concentrations of 5 and 10 ppm respectively is demonstrated and a noise equivalent limit-of-detection of 0.15 ppm is calculated for methane.
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Dadha P, Warren C, Shravan S, Nimmagadda S, Venter C, Kumar P, Gupta R. SPECIFIC FOOD ALLERGENS ASSOCIATED WITH CLINICAL SENSITIZATION AMONG PATIENTS PRESENTING TO HOSPITALS IN HYDERABAD, INDIA. Ann Allergy Asthma Immunol 2022. [DOI: 10.1016/j.anai.2022.08.692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Yost J, Warren C, Soroka A, McCulloch A, Roach A. UNDERSTANDING COMMUNITY-LEVEL IMPACTS ON FOOD ALLERGY MANAGEMENT AND OUTCOMES VIA A NOVEL COMMUNITY SUPPORT SCALE. Ann Allergy Asthma Immunol 2022. [DOI: 10.1016/j.anai.2022.08.696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Silva FB, Wang W, Moore C, Warren C, Miketinas D, Tucker W, Davis K. Intervention to Mitigate Food Insecurity among TWU first-year students (Denton campus). J Acad Nutr Diet 2022. [DOI: 10.1016/j.jand.2022.08.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Warren C, Nimmagadda S, Samady W, Venter C, Galic I, Hultquist H, Vincent E, Gupta R. P104 CURRENT US PARENT/CAREGIVER KNOWLEDGE, ATTITUDES, AND BEHAVIORS REGARDING DIETARY INTRODUCTION OF PEANUT PROTEIN DURING INFANCY. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Fong JN, Miketinas D, Moore L, Everts H, Warren C, Juma S, Patterson M. Precision Nutrition Model Predicts Postprandial Glucose Response Following Potato Intake. J Acad Nutr Diet 2021. [DOI: 10.1016/j.jand.2021.08.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Manzoni S, Ding Y, Warren C, Banfield CC, Dippold MA, Mason-Jones K. Intracellular Storage Reduces Stoichiometric Imbalances in Soil Microbial Biomass – A Theoretical Exploration. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.714134] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Microbial intracellular storage is key to defining microbial resource use strategies and could contribute to carbon (C) and nutrient cycling. However, little attention has been devoted to the role of intracellular storage in soil processes, in particular from a theoretical perspective. Here we fill this gap by integrating intracellular storage dynamics into a microbially explicit soil C and nutrient cycling model. Two ecologically relevant modes of storage are considered: reserve storage, in which elements are routed to a storage compartment in proportion to their uptake rate, and surplus storage, in which elements in excess of microbial stoichiometric requirements are stored and limiting elements are remobilized from storage to fuel growth and microbial maintenance. Our aim is to explore with this model how these different storage modes affect the retention of C and nutrients in active microbial biomass under idealized conditions mimicking a substrate pulse experiment. As a case study, we describe C and phosphorus (P) dynamics using literature data to estimate model parameters. Both storage modes enhance the retention of elements in microbial biomass, but the surplus storage mode is more effective to selectively store or remobilize C and nutrients according to microbial needs. Enhancement of microbial growth by both storage modes is largest when the substrate C:nutrient ratio is high (causing nutrient limitation after substrate addition) and the amount of added substrate is large. Moreover, storage increases biomass nutrient retention and growth more effectively when resources are supplied in a few large pulses compared to several smaller pulses (mimicking a nearly constant supply), which suggests storage to be particularly relevant in highly dynamic soil microhabitats. Overall, our results indicate that storage dynamics are most important under conditions of strong stoichiometric imbalance and may be of high ecological relevance in soil environments experiencing large variations in C and nutrient supply.
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Warren C, Shah T, Wisener J, Gad B, Abdelmalek G, Kahlam A, Sadeghi-Nejad H. 053 Assessment of The Reliability of YouTube Videos Related to Peyronie's Disease as A Patient Education Resource. J Sex Med 2021. [DOI: 10.1016/j.jsxm.2021.01.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Warren C, Chinthrajah S, Newmark P, Herbert L, Fox S, Nadeau K, Sharma H, Assa'ad A, Tobin M, Gupta R. A050 THE IMPACT OF COVID-19 AND DISEASE CONTROL MEASURES ON PEDIATRIC FOOD ALLERGY PARENTS/CAREGIVERS AND PATIENTS. Ann Allergy Asthma Immunol 2020. [PMCID: PMC7661913 DOI: 10.1016/j.anai.2020.08.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pappalardo A, Warren C, Herbert L, Robinson A, Lombard L, Ramos A, Sharma H, Tobin M, Assa'ad A, Gupta R. P308 CHARACTERIZING FOOD ALLERGY SELF-EFFICACY AMONG PARENTS/CAREGIVERS OF BLACK AND WHITE CHILDREN WITH FOOD ALLERGY. Ann Allergy Asthma Immunol 2020. [DOI: 10.1016/j.anai.2020.08.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Brown D, Negris O, Warren C, Herbert L, Bozen A, Assa'ad A, Mahdavinia M, Tobin M, Sharma H, Gupta R. A043 FOOD ALLERGY-RELATED BULLYING AND SCHOOL POLICY AMONG BLACK AND WHITE CHILDREN IN THE FORWARD STUDY. Ann Allergy Asthma Immunol 2020. [DOI: 10.1016/j.anai.2020.08.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Warren C, Fierstein J, Mahdavinia M, Newmark P, Jiang J, Bilaver L, Sharma H, Tobin M, Assa'ad A, Gupta R. A045 PHENOTYPIC DIFFERENCES IN ALLERGY TO MULTIPLE FOODS WITHIN A COHORT OF BLACK AND WHITE CHILDREN. Ann Allergy Asthma Immunol 2020. [DOI: 10.1016/j.anai.2020.08.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Merritt CR, Ong GT, Church SE, Barker K, Danaher P, Geiss G, Hoang M, Jung J, Liang Y, McKay-Fleisch J, Nguyen K, Norgaard Z, Sorg K, Sprague I, Warren C, Warren S, Webster PJ, Zhou Z, Zollinger DR, Dunaway DL, Mills GB, Beechem JM. Multiplex digital spatial profiling of proteins and RNA in fixed tissue. Nat Biotechnol 2020; 38:586-599. [PMID: 32393914 DOI: 10.1038/s41587-020-0472-9] [Citation(s) in RCA: 399] [Impact Index Per Article: 99.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 12/21/2019] [Indexed: 01/06/2023]
Abstract
Digital Spatial Profiling (DSP) is a method for highly multiplex spatial profiling of proteins or RNAs suitable for use on formalin-fixed, paraffin-embedded (FFPE) samples. The approach relies on (1) multiplexed readout of proteins or RNAs using oligonucleotide tags; (2) oligonucleotide tags attached to affinity reagents (antibodies or RNA probes) through a photocleavable (PC) linker; and (3) photocleaving light projected onto the tissue sample to release PC oligonucleotides in any spatial pattern across a region of interest (ROI) covering 1 to ~5,000 cells. DSP is capable of single-cell sensitivity within an ROI using the antibody readout, with RNA detection feasible down to ~600 individual mRNA transcripts. We show spatial profiling of up to 44 proteins and 96 genes (928 RNA probes) in lymphoid, colorectal tumor and autoimmune tissues by using the nCounter system and 1,412 genes (4,998 RNA probes) by using next-generation sequencing (NGS). DSP may be used to profile not only proteins and RNAs in biobanked samples but also immune markers in patient samples, with potential prognostic and predictive potential for clinical decision-making.
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Affiliation(s)
| | - Giang T Ong
- NanoString Technologies, Inc., Seattle, WA, USA
| | | | | | | | - Gary Geiss
- NanoString Technologies, Inc., Seattle, WA, USA
| | | | | | - Yan Liang
- NanoString Technologies, Inc., Seattle, WA, USA
| | | | | | | | | | | | | | | | | | - Zoey Zhou
- NanoString Technologies, Inc., Seattle, WA, USA
| | | | | | - Gordon B Mills
- Precision Oncology, Oregon Health & Science University Knight Cancer Institute, Portland, OR, USA
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Villalta D, Seaman A, Tiongson M, Warren C, Bentow C, Bizzaro N, Alessio MG, Porcelli B, Norman GL, Mahler M. Evaluation of a novel extended automated particle-based multi-analyte assay for the detection of autoantibodies in the diagnosis of primary biliary cholangitis. Clin Chem Lab Med 2020; 58:1499-1507. [PMID: 32286240 DOI: 10.1515/cclm-2020-0122] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 10/23/2019] [Accepted: 03/10/2020] [Indexed: 02/07/2023]
Abstract
Background Anti-mitochondrial autoantibodies (AMA) detected by indirect immunofluorescence (IIF) on rodent tissues are the diagnostic marker of primary biliary cholangitis (PBC). However, up to 15% of patients with PBC are AMA-negative by IIF. In the effort to close the serological gap and improve the diagnostic sensitivity of PBC testing, recently, novel autoantibodies specific for PBC, such as kelch-like 12 (KLHL12, KLp epitope) and hexokinase 1 (HK1) have been described. In this study, we evaluated the autoantibody profile in a large cohort of PBC patients and in patients with other liver disease, including anti-HK1 and anti-KLp autoantibodies. Methods Sera of 194 PBC patients (126 AMA-IIF-positive and 68 AMA-IIF-negative) and 138 disease controls were tested for a panel of PBC-specific antibodies (MIT3, sp100, gp210, HK1, KLp) using a new automated particle-based multi-analyte technology (PMAT) assay on the Aptiva instrument (Inova). Results Selecting a cutoff yielding a specificity of >95% for all the markers, the sensitivity for anti-MIT3, anti-sp100, anti-gp210, anti-HK1 and anti-KLp in the PBC AMA-IIF-negative cohort was 20.6%, 16.2%, 23.5%, 22.0%, 17.6 and 13.2%, respectively. Six out of the 68 (8.8%) AMA-IIF negative sera were positive for anti-HK1 or anti-KLp alone. Using these new markers in addition to anti-MIT3, anti-sp100 and anti-gp210, the overall sensitivity in this cohort of AMA-IIF-negative patients increased from 53% to 61.8%, reducing the serological gap in AMA-negative PBC patients. Conclusions PBC antibody profiling, made possible by the new Aptiva-PMAT technology, allows recognition of a higher number of AMA-negative PBC patients than conventional immunoassays and may represent a useful tool to evaluate the prognostic significance of autoantibody association in PBC patients.
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Affiliation(s)
- Danilo Villalta
- Immunologia e Allergologia, Ospedale S. Maria degli Angeli, Pordenone, Italy
| | - Andrea Seaman
- Research and Development, Inova Diagnostics, San Diego, CA, USA
| | | | - Charles Warren
- Research and Development, Inova Diagnostics, San Diego, CA, USA
| | - Chelsea Bentow
- Research and Development, Inova Diagnostics, San Diego, CA, USA
| | - Nicola Bizzaro
- Laboratorio di Patologia Clinica, Ospedale S. Antonio, Tolmezzo (UD), via M.L. King 25, 30027 San Donà di Piave (Venice), Italy
| | - Maria Grazia Alessio
- Dipartimento di Patologia Clinica, Laboratorio Analisi, AO Papa Giovanni XXIII, Bergamo, Italy
| | - Brunetta Porcelli
- Dipartimento di Biotecnologie Mediche, Università di Siena, Policlinico Le Scotte, Siena, Italy
| | - Gary L Norman
- Research and Development, Inova Diagnostics, San Diego, CA, USA
| | - Michael Mahler
- Research and Development, Inova Diagnostics, San Diego, CA, USA
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Warren C, Maraver MJ, de Luca A, Kopp B. P83 The Effect of transcutaneous auricular Vagal Nerve Stimulation (taVNS) on Event-Related Potentials during the Fish-Lake Task. Clin Neurophysiol 2020. [DOI: 10.1016/j.clinph.2019.12.194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
OBJECTIVE This study evaluated the quality of YouTube content focusing on common paediatric otolaryngology procedures, as this content can influence the opinions and medical decisions of patients. METHODS A total of 120 YouTube videos were compiled to review using the terms 'adenoid removal', 'adenoidectomy', 'ear tubes', 'tympanostomy', 'tonsil removal' and 'tonsillectomy'. The Discern criteria was used to rate the quality of health information presented in each video. RESULTS The mean bias Discern score was 3.18 and the mean overall Discern score was 2.39. Videos including US board certified physicians were rated significantly higher (p < 0.001) than videos without (bias Discern score = 3.00 vs 2.38; overall Discern score = 3.79 vs 1.55). The videos had been viewed a total of 176 769 549 times. CONCLUSION Unbiased, high quality videos on YouTube are lacking. As patients may rely on this information when making medical decisions, it is important that practitioners continually evaluate and improve this video content. Otolaryngologists should be prepared to discuss YouTube content with patients.
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Affiliation(s)
- B Ward
- Department of Otolaryngology, Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - R Bavier
- Department of Otolaryngology, Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - C Warren
- Department of Otolaryngology, Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - J Yan
- Department of Otolaryngology, Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - B Paskhover
- Department of Otolaryngology, Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, USA
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Jiang J, Bilaver L, Warren C, Fierstein J, Newmark P, Bozen A, Chadha A, Negris O, Pongracic J, Gupta R, Catlin P, Chura A, Assa'ad A, Andy-Nweye A, Fox S, Mahdavinia M, Tobin M, Robinson A, Abdikarim I, Coleman A, Sharma H. A305 DIFFERENCES IN FOOD ALLERGY KNOWLEDGE BETWEEN BLACK AND WHITE PARENTS IN THE FORWARD STUDY. Ann Allergy Asthma Immunol 2019. [DOI: 10.1016/j.anai.2019.08.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Wang H, Warren C, Gupta R, Davis C. P300 A COMPARISON OF CRUSTACEAN AND MOLLUSK ALLERGY IN THE PEDIATRIC POPULATION OF THE UNITED STATES. Ann Allergy Asthma Immunol 2019. [DOI: 10.1016/j.anai.2019.08.307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tobin M, Fox S, Mahdavinia M, Andy_Nweye B, Abdikarim I, Robinson A, Coleman A, Sharma H, fierstein J, Jiang J, Newmark P, Bilaver L, Bozen A, Chadha A, Warren C, Pongracic J, Negris O, Catlin P, chura A, Assa'ad A, Gupta R. P309 FORWARD STUDY REPORTS ALMOST 100 % OF CHILDREN WITH FOOD ALLERGIES HAD FILLED EPINEPHRINE PRESCRIPTIONS. Ann Allergy Asthma Immunol 2019. [DOI: 10.1016/j.anai.2019.08.316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Warren C, Dyer A, Lombard L, Gupta R. P317 THE PSYCHOSOCIAL BURDEN OF FOOD ALLERGY AMONG US ADULTS: A POPULATION-BASED SURVEY. Ann Allergy Asthma Immunol 2019. [DOI: 10.1016/j.anai.2019.08.324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Davis K, Brown C, Mitchell A, Massey-Stokes M, Warren C, Kaluva M, Habiba N. The Baby Bites Texting Project: Development of a Pilot Program to Prevent Early Pediatric Obesity. J Acad Nutr Diet 2019. [DOI: 10.1016/j.jand.2019.08.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Farid Y, Schneider S, Warren C, Vij A. 866 Patient with paroxysmal nocturnal hemoglobinuria (PNH) and aplastic anemia presenting with progressive purpuric nodules. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Jiang J, Bushara O, Ponczek J, Warren C, Blumenstock J, Smith B, Gupta R. UPDATED PEDIATRIC PEANUT ALLERGY PREVALENCE IN THE UNITED STATES. Ann Allergy Asthma Immunol 2018. [DOI: 10.1016/j.anai.2018.09.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Samady W, Das R, Ross J, Warren C, Jiang J, Smith B, Gupta R. EGG ALLERGY IN US CHILDREN. Ann Allergy Asthma Immunol 2018. [DOI: 10.1016/j.anai.2018.09.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Dodds RM, Davies K, Granic A, Hollingsworth KG, Warren C, Gorman G, Turnbull DM, Sayer AA. Mitochondrial respiratory chain function and content are preserved in the skeletal muscle of active very old men and women. Exp Gerontol 2018; 113:80-85. [PMID: 30266472 PMCID: PMC6224654 DOI: 10.1016/j.exger.2018.09.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/21/2018] [Accepted: 09/24/2018] [Indexed: 01/03/2023]
Abstract
Introduction The loss of mitochondrial function and content have been implicated in sarcopenia although they have been little studied in the very old, the group in which sarcopenia is most common. In this pilot study, our aim was to determine if mitochondrial respiratory chain function and content are preserved among healthy 85-year-olds. Methods We recruited 19 participants (11 female) through their general practitioner and assessed their medical history, functional status and self-reported physical activity. We identified sarcopenia using grip strength, Timed Up-and-Go and bioimpedance analysis. We assessed mitochondrial respiratory chain function using phosphorous magnetic resonance spectroscopy, estimating τ1/2 PCr, the recovery half-time of phosphocreatine in the calf muscles following a bout of aerobic exercise. We performed a biopsy of the vastus lateralis muscle and assessed mitochondrial respiratory chain content by measuring levels of subunits of complex I and IV of the respiratory chain, expressed as Z-scores relative to that in young controls. Results Participants had a median (IQR) of 2 (1,3) long-term conditions, reported regular aerobic physical activity, and one participant (5.3%) had sarcopenia. Sixteen participants completed the magnetic resonance protocol and the mean (SD) τ1/2 PCr of 35.6 (11.3) seconds was in keeping with preserved mitochondrial function. Seven participants underwent muscle biopsy and the mean fibre Z-scores were −0.7 (0.7) and −0.2 (0.4) for complexes I and IV, respectively, suggesting preserved content of mitochondrial respiratory chain enzymes. Conclusion Muscle mitochondrial respiratory chain function and content are preserved in a sample of active, well-functioning 85-year-olds, among whom sarcopenia was uncommon. The results from this study will help inform future work examining the association between muscle mitochondrial deficiency and sarcopenia.
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Affiliation(s)
- R M Dodds
- AGE Research Group, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK; NIHR Newcastle Biomedical Research Centre, Newcastle University and Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; Academic Geriatric Medicine, Faculty of Medicine, University of Southampton, Southampton, UK.
| | - K Davies
- AGE Research Group, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK; NIHR Newcastle Biomedical Research Centre, Newcastle University and Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; Newcastle University Institute for Ageing, Newcastle upon Tyne, UK
| | - A Granic
- AGE Research Group, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK; NIHR Newcastle Biomedical Research Centre, Newcastle University and Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; Newcastle University Institute for Ageing, Newcastle upon Tyne, UK
| | - K G Hollingsworth
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, UK
| | - C Warren
- Newcastle University Centre for Ageing and Vitality, Newcastle upon Tyne, UK; Wellcome Trust Centre for Mitochondrial Research, Newcastle upon Tyne, UK
| | - G Gorman
- Newcastle University Centre for Ageing and Vitality, Newcastle upon Tyne, UK; Wellcome Trust Centre for Mitochondrial Research, Newcastle upon Tyne, UK
| | - D M Turnbull
- NIHR Newcastle Biomedical Research Centre, Newcastle University and Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; Newcastle University Centre for Ageing and Vitality, Newcastle upon Tyne, UK; Wellcome Trust Centre for Mitochondrial Research, Newcastle upon Tyne, UK
| | - A A Sayer
- AGE Research Group, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK; NIHR Newcastle Biomedical Research Centre, Newcastle University and Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK; Academic Geriatric Medicine, Faculty of Medicine, University of Southampton, Southampton, UK; Newcastle University Institute for Ageing, Newcastle upon Tyne, UK
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Abstract
UNLABELLED Percussive riveting is the primary process for attaching the outer sheet metal "skins" of an aircraft to its airframe. Workers using manually-operated riveting tools (riveting hammers and rivet bucking bars) are exposed to significant levels of hand-transmitted vibration (HTV) and are at risk of developing components of hand-arm vibration syndrome (HAVS). To protect workers, employers can assess and select riveting tools that produce reduced HTV exposures. Researchers at the National Institute for Occupational Safety & Health (NIOSH) have developed a laboratory-based apparatus and methodology to evaluate the vibrations of rivet bucking bars. Using this simulated riveting approach, this study investigated the effects of feed force on the vibrations of several typical rivet bucking bars and that transmitted to the bucking bar operator's wrist. Five bucking bar models were assessed under three levels of feed force. The study results demonstrate that the feed force can be a major influencing factor on bucking bar vibrations. Similar feed force effects were observed at the bucking bar operator's wrist. This study also shows that different bucking bar designs will respond differently to variations in feed force. Some bucking bar designs may offer reduced vibration exposures to the bar operator's fingers while providing little attenuation of wrist acceleration. Knowledge of how rivet bucking bar models respond to riveting hammer vibrations can be important for making informed bucking bar selections. The study results indicate that, to help in the appropriate selection of bucking bars, candidate bar models should be evaluated at multiple feed force levels. The results also indicate that the bucking bar model, feed force level, or the bucking bar operator have no meaningful effects on the vibration excitation (riveting hammer), which further suggests that the test apparatus proposed by NIOSH researchers meets the basic requirements for a stable vibration source in laboratory-based bucking bar vibration assessments. This study provides relevant information that can be used to help develop a standardized laboratory-based bucking bar evaluation methodology and to help in the selection of appropriate bucking bars for various workplace riveting applications. RELEVANCE TO INDUSTRY Because the feed force level can affect HTV exposures to bucking bar operators, the feed force required for specific riveting operations should be an important consideration when selecting bucking bar models. This study provides useful information about bucking bar responses to riveting hammer vibrations; this knowledge can improve bucking bar selections.
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Affiliation(s)
- T.W. McDowell
- Corresponding author. CDC/NIOSH/HELD, 1095 Willowdale Road, MS 2027, Morgantown, WV, 26505, USA. (T.W. McDowell)
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Warren C, Hamilton AER, Taylor DG, Stevenson ARL. Tips and tricks for rectal dissection during laparoscopic ultra-low anterior resection. Tech Coloproctol 2018; 22:613-615. [PMID: 30120631 DOI: 10.1007/s10151-018-1836-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 08/06/2018] [Indexed: 11/30/2022]
Affiliation(s)
- C Warren
- Department of Colorectal Surgery, The Royal Brisbane and Women's Hospital, Herston, QLD, 4029, Australia. .,Colorectal Unit, The Wesley Hospital, Auchenflower, QLD, Australia. .,The Holy Spirit Northside Private Hospital Brisbane, Chermside, Australia.
| | - A E R Hamilton
- Department of Colorectal Surgery, The Royal Brisbane and Women's Hospital, Herston, QLD, 4029, Australia.,Colorectal Unit, The Wesley Hospital, Auchenflower, QLD, Australia.,Faculty of Medicine, The University of Queensland, Herston, QLD, Australia.,The Holy Spirit Northside Private Hospital Brisbane, Chermside, Australia
| | - D G Taylor
- Department of Colorectal Surgery, The Royal Brisbane and Women's Hospital, Herston, QLD, 4029, Australia.,Colorectal Unit, The Wesley Hospital, Auchenflower, QLD, Australia.,Faculty of Medicine, The University of Queensland, Herston, QLD, Australia
| | - A R L Stevenson
- Department of Colorectal Surgery, The Royal Brisbane and Women's Hospital, Herston, QLD, 4029, Australia.,Faculty of Medicine, The University of Queensland, Herston, QLD, Australia.,The Holy Spirit Northside Private Hospital Brisbane, Chermside, Australia
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Yavelak M, Luchansky JB, Porto-Fett AC, Hochstein JJ, Campbell JA, Hanson DJ, Warren C, Schollenberger A, Chapman BJ. Assessing Consumer Food Safety Knowledge and Practice at Temporary Events. Meat and Muscle Biology 2018. [DOI: 10.22175/rmc2018.145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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30
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Gupta R, Warren C, Blumenstock J, Kotowska J, Mittal K, Smith B. OR078 The prevalence of childhood food allergy in the United States: an update. Ann Allergy Asthma Immunol 2017. [DOI: 10.1016/j.anai.2017.08.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Gupta R, Blumenstock J, Warren C, Mittal K, Kotowska J, Smith B. OR077 The prevalence of nut and seafood allergies among adults in the United States. Ann Allergy Asthma Immunol 2017. [DOI: 10.1016/j.anai.2017.08.059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Warren C, Dyer A, Smith B, Gupta R. P276 Predicting latent classes of food allergy risk-taking behaviors among adolescents and young adults. Ann Allergy Asthma Immunol 2016. [DOI: 10.1016/j.anai.2016.09.289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Vohra RS, Pasquali S, Kirkham AJ, Marriott P, Johnstone M, Spreadborough P, Alderson D, Griffiths EA, Fenwick S, Elmasry M, Nunes Q, Kennedy D, Basit Khan R, Khan MAS, Magee CJ, Jones SM, Mason D, Parappally CP, Mathur P, Saunders M, Jamel S, Ul Haque S, Zafar S, Shiwani MH, Samuel N, Dar F, Jackson A, Lovett B, Dindyal S, Winter H, Fletcher T, Rahman S, Wheatley K, Nieto T, Ayaani S, Youssef H, Nijjar RS, Watkin H, Naumann D, Emeshi S, Sarmah PB, Lee K, Joji N, Heath J, Teasdale RL, Weerasinghe C, Needham PJ, Welbourn H, Forster L, Finch D, Blazeby JM, Robb W, McNair AGK, Hrycaiczuk A, Charalabopoulos A, Kadirkamanathan S, Tang CB, Jayanthi NVG, Noor N, Dobbins B, Cockbain AJ, Nilsen-Nunn A, Siqueira J, Pellen M, Cowley JB, Ho WM, Miu V, White TJ, Hodgkins KA, Kinghorn A, Tutton MG, Al-Abed YA, Menzies D, Ahmad A, Reed J, Khan S, Monk D, Vitone LJ, Murtaza G, Joel A, Brennan S, Shier D, Zhang C, Yoganathan T, Robinson SJ, McCallum IJD, Jones MJ, Elsayed M, Tuck L, Wayman J, Carney K, Aroori S, Hosie KB, Kimble A, Bunting DM, Fawole AS, Basheer M, Dave RV, Sarveswaran J, Jones E, Kendal C, Tilston MP, Gough M, Wallace T, Singh S, Downing J, Mockford KA, Issa E, Shah N, Chauhan N, Wilson TR, Forouzanfar A, Wild JRL, Nofal E, Bunnell C, Madbak K, Rao STV, Devoto L, Siddiqi N, Khawaja Z, Hewes JC, Gould L, Chambers A, Urriza Rodriguez D, Sen G, Robinson S, Carney K, Bartlett F, Rae DM, Stevenson TEJ, Sarvananthan K, Dwerryhouse SJ, Higgs SM, Old OJ, Hardy TJ, Shah R, Hornby ST, Keogh K, Frank L, Al-Akash M, Upchurch EA, Frame RJ, Hughes M, Jelley C, Weaver S, Roy S, Sillo TO, Galanopoulos G, Cuming T, Cunha P, Tayeh S, Kaptanis S, Heshaishi M, Eisawi A, Abayomi M, Ngu WS, Fleming K, Singh Bajwa D, Chitre V, Aryal K, Ferris P, Silva M, Lammy S, Mohamed S, Khawaja A, Hussain A, Ghazanfar MA, Bellini MI, Ebdewi H, Elshaer M, Gravante G, Drake B, Ogedegbe A, Mukherjee D, Arhi C, Giwa Nusrat Iqbal L, Watson NF, Kumar Aggarwal S, Orchard P, Villatoro E, Willson PD, Wa K, Mok J, Woodman T, Deguara J, Garcea G, Babu BI, Dennison AR, Malde D, Lloyd D, Satheesan S, Al-Taan O, Boddy A, Slavin JP, Jones RP, Ballance L, Gerakopoulos S, Jambulingam P, Mansour S, Sakai N, Acharya V, Sadat MM, Karim L, Larkin D, Amin K, Khan A, Law J, Jamdar S, Smith SR, Sampat K, M O'shea K, Manu M, Asprou FM, Malik NS, Chang J, Johnstone M, Lewis M, Roberts GP, Karavadra B, Photi E, Hewes J, Gould L, Chambers A, Rodriguez D, O'Reilly DA, Rate AJ, Sekhar H, Henderson LT, Starmer BZ, Coe PO, Tolofari S, Barrie J, Bashir G, Sloane J, Madanipour S, Halkias C, Trevatt AEJ, Borowski DW, Hornsby J, Courtney MJ, Virupaksha S, Seymour K, Robinson S, Hawkins H, Bawa S, Gallagher PV, Reid A, Wood P, Finch JG, Parmar J, Stirland E, Gardner-Thorpe J, Al-Muhktar A, Peterson M, Majeed A, Bajwa FM, Martin J, Choy A, Tsang A, Pore N, Andrew DR, Al-Khyatt W, Taylor C, Bhandari S, Chambers A, Subramanium D, Toh SKC, Carter NC, Mercer SJ, Knight B, Tate S, Pearce B, Wainwright D, Vijay V, Alagaratnam S, Sinha S, Khan S, El-Hasani SS, Hussain AA, Bhattacharya V, Kansal N, Fasih T, Jackson C, Siddiqui MN, Chishti IA, Fordham IJ, Siddiqui Z, Bausbacher H, Geogloma I, Gurung K, Tsavellas G, Basynat P, Kiran Shrestha A, Basu S, Chhabra Mohan Harilingam A, Rabie M, Akhtar M, Kumar P, Jafferbhoy SF, Hussain N, Raza S, Haque M, Alam I, Aseem R, Patel S, Asad M, Booth MI, Ball WR, Wood CPJ, Pinho-Gomes AC, Kausar A, Rami Obeidallah M, Varghase J, Lodhia J, Bradley D, Rengifo C, Lindsay D, Gopalswamy S, Finlay I, Wardle S, Bullen N, Iftikhar SY, Awan A, Ahmed J, Leeder P, Fusai G, Bond-Smith G, Psica A, Puri Y, Hou D, Noble F, Szentpali K, Broadhurst J, Date R, Hossack MR, Li Goh Y, Turner P, Shetty V, Riera M, Macano CAW, Sukha A, Preston SR, Hoban JR, Puntis DJ, Williams SV, Krysztopik R, Kynaston J, Batt J, Doe M, Goscimski A, Jones GH, Smith SR, Hall C, Carty N, Ahmed J, Panteleimonitis S, Gunasekera RT, Sheel ARG, Lennon H, Hindley C, Reddy M, Kenny R, Elkheir N, McGlone ER, Rajaganeshan R, Hancorn K, Hargreaves A, Prasad R, Longbotham DA, Vijayanand D, Wijetunga I, Ziprin P, Nicolay CR, Yeldham G, Read E, Gossage JA, Rolph RC, Ebied H, Phull M, Khan MA, Popplewell M, Kyriakidis D, Hussain A, Henley N, Packer JR, Derbyshire L, Porter J, Appleton S, Farouk M, Basra M, Jennings NA, Ali S, Kanakala V, Ali H, Lane R, Dickson-Lowe R, Zarsadias P, Mirza D, Puig S, Al Amari K, Vijayan D, Sutcliffe R, Marudanayagam R, Hamady Z, Prasad AR, Patel A, Durkin D, Kaur P, Bowen L, Byrne JP, Pearson KL, Delisle TG, Davies J, Tomlinson MA, Johnpulle MA, Slawinski C, Macdonald A, Nicholson J, Newton K, Mbuvi J, Farooq A, Sidhartha Mothe B, Zafrani Z, Brett D, Francombe J, Spreadborough P, Barnes J, Cheung M, Al-Bahrani AZ, Preziosi G, Urbonas T, Alberts J, Mallik M, Patel K, Segaran A, Doulias T, Sufi PA, Yao C, Pollock S, Manzelli A, Wajed S, Kourkulos M, Pezzuto R, Wadley M, Hamilton E, Jaunoo S, Padwick R, Sayegh M, Newton RC, Hebbar M, Farag SF, Spearman J, Hamdan MF, D'Costa C, Blane C, Giles M, Peter MB, Hirst NA, Hossain T, Pannu A, El-Dhuwaib Y, Morrison TEM, Taylor GW, Thompson RLE, McCune K, Loughlin P, Lawther R, Byrnes CK, Simpson DJ, Mawhinney A, Warren C, McKay D, McIlmunn C, Martin S, MacArtney M, Diamond T, Davey P, Jones C, Clements JM, Digney R, Chan WM, McCain S, Gull S, Janeczko A, Dorrian E, Harris A, Dawson S, Johnston D, McAree B, Ghareeb E, Thomas G, Connelly M, McKenzie S, Cieplucha K, Spence G, Campbell W, Hooks G, Bradley N, Hill ADK, Cassidy JT, Boland M, Burke P, Nally DM, Hill ADK, Khogali E, Shabo W, Iskandar E, McEntee GP, O'Neill MA, Peirce C, Lyons EM, O'Sullivan AW, Thakkar R, Carroll P, Ivanovski I, Balfe P, Lee M, Winter DC, Kelly ME, Hoti E, Maguire D, Karunakaran P, Geoghegan JG, Martin ST, McDermott F, Cross KS, Cooke F, Zeeshan S, Murphy JO, Mealy K, Mohan HM, Nedujchelyn Y, Fahad Ullah M, Ahmed I, Giovinazzo F, Milburn J, Prince S, Brooke E, Buchan J, Khalil AM, Vaughan EM, Ramage MI, Aldridge RC, Gibson S, Nicholson GA, Vass DG, Grant AJ, Holroyd DJ, Jones MA, Sutton CMLR, O'Dwyer P, Nilsson F, Weber B, Williamson TK, Lalla K, Bryant A, Carter CR, Forrest CR, Hunter DI, Nassar AH, Orizu MN, Knight K, Qandeel H, Suttie S, Belding R, McClarey A, Boyd AT, Guthrie GJK, Lim PJ, Luhmann A, Watson AJM, Richards CH, Nicol L, Madurska M, Harrison E, Boyce KM, Roebuck A, Ferguson G, Pati P, Wilson MSJ, Dalgaty F, Fothergill L, Driscoll PJ, Mozolowski KL, Banwell V, Bennett SP, Rogers PN, Skelly BL, Rutherford CL, Mirza AK, Lazim T, Lim HCC, Duke D, Ahmed T, Beasley WD, Wilkinson MD, Maharaj G, Malcolm C, Brown TH, Shingler GM, Mowbray N, Radwan R, Morcous P, Wood S, Kadhim A, Stewart DJ, Baker AL, Tanner N, Shenoy H, Hafiz S, Marchi JA, Singh-Ranger D, Hisham E, Ainley P, O'Neill S, Terrace J, Napetti S, Hopwood B, Rhys T, Downing J, Kanavati O, Coats M, Aleksandrov D, Kallaway C, Yahya S, Weber B, Templeton A, Trotter M, Lo C, Dhillon A, Heywood N, Aawsaj Y, Hamdan A, Reece-Bolton O, McGuigan A, Shahin Y, Ali A, Luther A, Nicholson JA, Rajendran I, Boal M, Ritchie J. Population-based cohort study of variation in the use of emergency cholecystectomy for benign gallbladder diseases. Br J Surg 2016; 103:1716-1726. [PMID: 27748962 DOI: 10.1002/bjs.10288] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 06/21/2016] [Accepted: 07/06/2016] [Indexed: 01/05/2023]
Abstract
Abstract
Background
The aims of this prospective population-based cohort study were to identify the patient and hospital characteristics associated with emergency cholecystectomy, and the influences of these in determining variations between hospitals.
Methods
Data were collected for consecutive patients undergoing cholecystectomy in acute UK and Irish hospitals between 1 March and 1 May 2014. Potential explanatory variables influencing the performance of emergency cholecystectomy were analysed by means of multilevel, multivariable logistic regression modelling using a two-level hierarchical structure with patients (level 1) nested within hospitals (level 2).
Results
Data were collected on 4744 cholecystectomies from 165 hospitals. Increasing age, lower ASA fitness grade, biliary colic, the need for further imaging (magnetic retrograde cholangiopancreatography), endoscopic interventions (endoscopic retrograde cholangiopancreatography) and admission to a non-biliary centre significantly reduced the likelihood of an emergency cholecystectomy being performed. The multilevel model was used to calculate the probability of receiving an emergency cholecystectomy for a woman aged 40 years or over with an ASA grade of I or II and a BMI of at least 25·0 kg/m2, who presented with acute cholecystitis with an ultrasound scan showing a thick-walled gallbladder and a normal common bile duct. The mean predicted probability of receiving an emergency cholecystectomy was 0·52 (95 per cent c.i. 0·45 to 0·57). The predicted probabilities ranged from 0·02 to 0·95 across the 165 hospitals, demonstrating significant variation between hospitals.
Conclusion
Patients with similar characteristics presenting to different hospitals with acute gallbladder pathology do not receive comparable care.
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Affiliation(s)
| | - R S Vohra
- Trent Oesophago-Gastric Unit, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - S Pasquali
- Surgical Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - A J Kirkham
- Cancer Research UK Clinical Trials Unit, University of Birmingham, Birmingham, UK
| | - P Marriott
- West Midlands Research Collaborative, Academic Department of Surgery, University of Birmingham, Birmingham, UK
| | - M Johnstone
- West Midlands Research Collaborative, Academic Department of Surgery, University of Birmingham, Birmingham, UK
| | - P Spreadborough
- West Midlands Research Collaborative, Academic Department of Surgery, University of Birmingham, Birmingham, UK
| | - D Alderson
- Academic Department of Surgery, University of Birmingham, Birmingham, UK
| | - E A Griffiths
- Department of Upper Gastrointestinal Surgery, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - S Fenwick
- Aintree University Hospital NHS Foundation Trust
| | - M Elmasry
- Aintree University Hospital NHS Foundation Trust
| | - Q Nunes
- Aintree University Hospital NHS Foundation Trust
| | - D Kennedy
- Aintree University Hospital NHS Foundation Trust
| | | | | | | | | | - D Mason
- Wirral University Teaching Hospital
| | | | | | | | - S Jamel
- Barnet and Chase Farm Hospital
| | | | - S Zafar
- Barnet and Chase Farm Hospital
| | | | - N Samuel
- Barnsley District General Hospital
| | - F Dar
- Barnsley District General Hospital
| | | | | | | | | | | | | | - K Wheatley
- Sandwell and West Birmingham Hospitals NHS Trust
| | - T Nieto
- Sandwell and West Birmingham Hospitals NHS Trust
| | - S Ayaani
- Sandwell and West Birmingham Hospitals NHS Trust
| | - H Youssef
- Heart of England Foundation NHS Trust
| | | | - H Watkin
- Heart of England Foundation NHS Trust
| | - D Naumann
- Heart of England Foundation NHS Trust
| | - S Emeshi
- Heart of England Foundation NHS Trust
| | | | - K Lee
- Heart of England Foundation NHS Trust
| | - N Joji
- Heart of England Foundation NHS Trust
| | - J Heath
- Blackpool Teaching Hospitals NHS Foundation Trust
| | - R L Teasdale
- Blackpool Teaching Hospitals NHS Foundation Trust
| | | | - P J Needham
- Bradford Teaching Hospitals NHS Foundation Trust
| | - H Welbourn
- Bradford Teaching Hospitals NHS Foundation Trust
| | - L Forster
- Bradford Teaching Hospitals NHS Foundation Trust
| | - D Finch
- Bradford Teaching Hospitals NHS Foundation Trust
| | | | - W Robb
- University Hospitals Bristol NHS Trust
| | | | | | | | | | | | | | | | - B Dobbins
- Calderdale and Huddersfield NHS Trust
| | | | | | | | - M Pellen
- Hull and East Yorkshire NHS Trust
| | | | - W-M Ho
- Hull and East Yorkshire NHS Trust
| | - V Miu
- Hull and East Yorkshire NHS Trust
| | - T J White
- Chesterfield Royal Hospital NHS Foundation Trust
| | - K A Hodgkins
- Chesterfield Royal Hospital NHS Foundation Trust
| | - A Kinghorn
- Chesterfield Royal Hospital NHS Foundation Trust
| | - M G Tutton
- Colchester Hospital University NHS Foundation Trust
| | - Y A Al-Abed
- Colchester Hospital University NHS Foundation Trust
| | - D Menzies
- Colchester Hospital University NHS Foundation Trust
| | - A Ahmad
- Colchester Hospital University NHS Foundation Trust
| | - J Reed
- Colchester Hospital University NHS Foundation Trust
| | - S Khan
- Colchester Hospital University NHS Foundation Trust
| | - D Monk
- Countess of Chester NHS Foundation Trust
| | - L J Vitone
- Countess of Chester NHS Foundation Trust
| | - G Murtaza
- Countess of Chester NHS Foundation Trust
| | - A Joel
- Countess of Chester NHS Foundation Trust
| | | | - D Shier
- Croydon Health Services NHS Trust
| | - C Zhang
- Croydon Health Services NHS Trust
| | | | | | | | - M J Jones
- North Cumbria University Hospitals Trust
| | - M Elsayed
- North Cumbria University Hospitals Trust
| | - L Tuck
- North Cumbria University Hospitals Trust
| | - J Wayman
- North Cumbria University Hospitals Trust
| | - K Carney
- North Cumbria University Hospitals Trust
| | | | | | | | | | | | | | | | | | | | | | - M P Tilston
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - M Gough
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - T Wallace
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - S Singh
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - J Downing
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - K A Mockford
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - E Issa
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - N Shah
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - N Chauhan
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - T R Wilson
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - A Forouzanfar
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - J R L Wild
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - E Nofal
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - C Bunnell
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - K Madbak
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - S T V Rao
- Dorset County Hospital NHS Foundation Trust
| | - L Devoto
- Dorset County Hospital NHS Foundation Trust
| | - N Siddiqi
- Dorset County Hospital NHS Foundation Trust
| | - Z Khawaja
- Dorset County Hospital NHS Foundation Trust
| | | | | | | | | | | | | | | | | | - D M Rae
- Frimley Park Hospital NHS Trust
| | | | | | | | | | - O J Old
- Gloucestershire Hospitals NHS Trust
| | | | - R Shah
- Gloucestershire Hospitals NHS Trust
| | | | - K Keogh
- Gloucestershire Hospitals NHS Trust
| | - L Frank
- Gloucestershire Hospitals NHS Trust
| | - M Al-Akash
- Great Western Hospitals NHS Foundation Trust
| | | | - R J Frame
- Harrogate and District NHS Foundation Trust
| | - M Hughes
- Harrogate and District NHS Foundation Trust
| | - C Jelley
- Harrogate and District NHS Foundation Trust
| | | | | | | | | | - T Cuming
- Homerton University Hospital NHS Trust
| | - P Cunha
- Homerton University Hospital NHS Trust
| | - S Tayeh
- Homerton University Hospital NHS Trust
| | | | | | - A Eisawi
- Tees Hospitals NHS Foundation Trust
| | | | - W S Ngu
- Tees Hospitals NHS Foundation Trust
| | | | | | - V Chitre
- Paget University Hospitals NHS Foundation Trust
| | - K Aryal
- Paget University Hospitals NHS Foundation Trust
| | - P Ferris
- Paget University Hospitals NHS Foundation Trust
| | | | | | | | | | | | | | | | - H Ebdewi
- Kettering General Hospital NHS Foundation Trust
| | - M Elshaer
- Kettering General Hospital NHS Foundation Trust
| | - G Gravante
- Kettering General Hospital NHS Foundation Trust
| | - B Drake
- Kettering General Hospital NHS Foundation Trust
| | - A Ogedegbe
- Barking, Havering and Redbridge University Hospitals NHS Trust
| | - D Mukherjee
- Barking, Havering and Redbridge University Hospitals NHS Trust
| | - C Arhi
- Barking, Havering and Redbridge University Hospitals NHS Trust
| | | | | | | | | | | | | | - K Wa
- Kingston Hospital NHS Foundation Trust
| | - J Mok
- Kingston Hospital NHS Foundation Trust
| | - T Woodman
- Kingston Hospital NHS Foundation Trust
| | - J Deguara
- Kingston Hospital NHS Foundation Trust
| | - G Garcea
- University Hospitals of Leicester NHS Trust
| | - B I Babu
- University Hospitals of Leicester NHS Trust
| | | | - D Malde
- University Hospitals of Leicester NHS Trust
| | - D Lloyd
- University Hospitals of Leicester NHS Trust
| | | | - O Al-Taan
- University Hospitals of Leicester NHS Trust
| | - A Boddy
- University Hospitals of Leicester NHS Trust
| | - J P Slavin
- Leighton Hospital, Mid Cheshire Hospitals NHS Foundation Trust
| | - R P Jones
- Leighton Hospital, Mid Cheshire Hospitals NHS Foundation Trust
| | - L Ballance
- Leighton Hospital, Mid Cheshire Hospitals NHS Foundation Trust
| | - S Gerakopoulos
- Leighton Hospital, Mid Cheshire Hospitals NHS Foundation Trust
| | - P Jambulingam
- Luton and Dunstable University Hospital NHS Foundation Trust
| | - S Mansour
- Luton and Dunstable University Hospital NHS Foundation Trust
| | - N Sakai
- Luton and Dunstable University Hospital NHS Foundation Trust
| | - V Acharya
- Luton and Dunstable University Hospital NHS Foundation Trust
| | - M M Sadat
- Macclesfield District General Hospital
| | - L Karim
- Macclesfield District General Hospital
| | - D Larkin
- Macclesfield District General Hospital
| | - K Amin
- Macclesfield District General Hospital
| | - A Khan
- Central Manchester NHS Foundation Trust
| | - J Law
- Central Manchester NHS Foundation Trust
| | - S Jamdar
- Central Manchester NHS Foundation Trust
| | - S R Smith
- Central Manchester NHS Foundation Trust
| | - K Sampat
- Central Manchester NHS Foundation Trust
| | | | - M Manu
- Royal Wolverhampton Hospitals NHS Trust
| | | | - N S Malik
- Royal Wolverhampton Hospitals NHS Trust
| | - J Chang
- Royal Wolverhampton Hospitals NHS Trust
| | | | - M Lewis
- Norfolk and Norwich University Hospitals NHS Foundation Trust
| | - G P Roberts
- Norfolk and Norwich University Hospitals NHS Foundation Trust
| | - B Karavadra
- Norfolk and Norwich University Hospitals NHS Foundation Trust
| | - E Photi
- Norfolk and Norwich University Hospitals NHS Foundation Trust
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - J Hornsby
- North Tees and Hartlepool NHS Foundation Trust
| | | | | | - K Seymour
- Northumbria Healthcare NHS Foundation Trust
| | - S Robinson
- Northumbria Healthcare NHS Foundation Trust
| | - H Hawkins
- Northumbria Healthcare NHS Foundation Trust
| | - S Bawa
- Northumbria Healthcare NHS Foundation Trust
| | | | - A Reid
- Northumbria Healthcare NHS Foundation Trust
| | - P Wood
- Northumbria Healthcare NHS Foundation Trust
| | - J G Finch
- Northampton General Hospital NHS Trust
| | - J Parmar
- Northampton General Hospital NHS Trust
| | | | | | - A Al-Muhktar
- Sheffield Teaching Hospitals NHS Foundation Trust
| | - M Peterson
- Sheffield Teaching Hospitals NHS Foundation Trust
| | - A Majeed
- Sheffield Teaching Hospitals NHS Foundation Trust
| | | | | | - A Choy
- Peterborough City Hospital
| | | | - N Pore
- United Lincolnshire Hospitals NHS Trust
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- United Lincolnshire Hospitals NHS Trust
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- Portsmouth Hospitals NHS Trust
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- The Princess Alexandra Hospital NHS Trust
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- The Princess Alexandra Hospital NHS Trust
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- The Princess Alexandra Hospital NHS Trust
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- King's College Hospital NHS Foundation Trust
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- Gateshead Health NHS Foundation Trust
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- Gateshead Health NHS Foundation Trust
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- Gateshead Health NHS Foundation Trust
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- Queen Elizabeth Hospital NHS Trust
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- East Kent Hospitals University NHS Foundation Trust
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- East Kent Hospitals University NHS Foundation Trust
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- East Kent Hospitals University NHS Foundation Trust
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- East Kent Hospitals University NHS Foundation Trust
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- East Kent Hospitals University NHS Foundation Trust
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- Burton Hospitals NHS Foundation Trust
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- Burton Hospitals NHS Foundation Trust
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- Burton Hospitals NHS Foundation Trust
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- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
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- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
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- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
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- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
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- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
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- Royal Berkshire NHS Foundation Trust
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- Royal Berkshire NHS Foundation Trust
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- Royal Bolton Hospital NHS Foundation Trust
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- Royal Bolton Hospital NHS Foundation Trust
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- Royal Bolton Hospital NHS Foundation Trust
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- Royal Bolton Hospital NHS Foundation Trust
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- Royal Derby NHS Foundation Trust
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- Royal Derby NHS Foundation Trust
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- Hampshire Hospital NHS Foundation Trust
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- Lancashire Teaching Hospitals NHS Foundation Trust
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- Lancashire Teaching Hospitals NHS Foundation Trust
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- Lancashire Teaching Hospitals NHS Foundation Trust
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- Lancashire Teaching Hospitals NHS Foundation Trust
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- Lancashire Teaching Hospitals NHS Foundation Trust
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- Royal Surrey County Hospital NHS Foundation Trust
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- Royal Surrey County Hospital NHS Foundation Trust
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- Royal Surrey County Hospital NHS Foundation Trust
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- Royal Surrey County Hospital NHS Foundation Trust
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- Royal United Hospital Bath NHS Trust
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- Royal United Hospital Bath NHS Trust
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- Salford Royal NHS Foundation Trust
| | - N Carty
- Salisbury Hospital Foundation Trust
| | - J Ahmed
- Salisbury Hospital Foundation Trust
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- Southport and Ormskirk Hospital NHS Trust
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- Southport and Ormskirk Hospital NHS Trust
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- St George's Healthcare NHS Trust
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- St George's Healthcare NHS Trust
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- St Helens and Knowsley Teaching Hospitals NHS Trust
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- St Helens and Knowsley Teaching Hospitals NHS Trust
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- Imperial College Healthcare NHS Trust
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- Imperial College Healthcare NHS Trust
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- Imperial College Healthcare NHS Trust
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- Mid Staffordshire NHS Foundation Trust
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- Mid Staffordshire NHS Foundation Trust
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- City Hospitals Sunderland NHS Foundation Trust
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- City Hospitals Sunderland NHS Foundation Trust
| | - H Ali
- Tunbridge Wells and Maidstone NHS Trust
| | - R Lane
- Tunbridge Wells and Maidstone NHS Trust
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- University Hospital Birmingham NHS Foundation Trust
| | - S Puig
- University Hospital Birmingham NHS Foundation Trust
| | - K Al Amari
- University Hospital Birmingham NHS Foundation Trust
| | - D Vijayan
- University Hospital Birmingham NHS Foundation Trust
| | - R Sutcliffe
- University Hospital Birmingham NHS Foundation Trust
| | | | - Z Hamady
- University Hospital Coventry and Warwickshire NHS Trust
| | - A R Prasad
- University Hospital Coventry and Warwickshire NHS Trust
| | - A Patel
- University Hospital Coventry and Warwickshire NHS Trust
| | - D Durkin
- University Hospital of North Staffordshire NHS Trust
| | - P Kaur
- University Hospital of North Staffordshire NHS Trust
| | - L Bowen
- University Hospital of North Staffordshire NHS Trust
| | - J P Byrne
- University Hospital Southampton NHS Foundation Trust
| | - K L Pearson
- University Hospital Southampton NHS Foundation Trust
| | - T G Delisle
- University Hospital Southampton NHS Foundation Trust
| | - J Davies
- University Hospital Southampton NHS Foundation Trust
| | | | | | | | - A Macdonald
- University Hospital South Manchester NHS Foundation Trust
| | - J Nicholson
- University Hospital South Manchester NHS Foundation Trust
| | - K Newton
- University Hospital South Manchester NHS Foundation Trust
| | - J Mbuvi
- University Hospital South Manchester NHS Foundation Trust
| | - A Farooq
- Warrington and Halton Hospitals NHS Trust
| | | | - Z Zafrani
- Warrington and Halton Hospitals NHS Trust
| | - D Brett
- Warrington and Halton Hospitals NHS Trust
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- South Warwickshire NHS Foundation Trust
| | - M Cheung
- South Warwickshire NHS Foundation Trust
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- Worcestershire Acute Hospitals NHS Trust
| | - E Hamilton
- Worcestershire Acute Hospitals NHS Trust
| | - S Jaunoo
- Worcestershire Acute Hospitals NHS Trust
| | - R Padwick
- Worcestershire Acute Hospitals NHS Trust
| | - M Sayegh
- Western Sussex Hospitals NHS Foundation Trust
| | - R C Newton
- Western Sussex Hospitals NHS Foundation Trust
| | - M Hebbar
- Western Sussex Hospitals NHS Foundation Trust
| | - S F Farag
- Western Sussex Hospitals NHS Foundation Trust
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- Yeovil District Hospital NHS Trust
| | - M Giles
- York Teaching Hospital NHS Foundation Trust
| | - M B Peter
- York Teaching Hospital NHS Foundation Trust
| | - N A Hirst
- York Teaching Hospital NHS Foundation Trust
| | - T Hossain
- York Teaching Hospital NHS Foundation Trust
| | - A Pannu
- York Teaching Hospital NHS Foundation Trust
| | | | | | - G W Taylor
- York Teaching Hospital NHS Foundation Trust
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- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - P Davey
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - C Jones
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - J M Clements
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - R Digney
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - W M Chan
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - S McCain
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - S Gull
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - A Janeczko
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - E Dorrian
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - A Harris
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - S Dawson
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - D Johnston
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - B McAree
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
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- University Hospital Limerick
| | | | - A D K Hill
- Louth County Hospital and Our Lady of Lourdes Hospital
| | - E Khogali
- Louth County Hospital and Our Lady of Lourdes Hospital
| | - W Shabo
- Louth County Hospital and Our Lady of Lourdes Hospital
| | - E Iskandar
- Louth County Hospital and Our Lady of Lourdes Hospital
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- St Luke's General Hospital Kilkenny
| | - M Lee
- St Luke's General Hospital Kilkenny
| | - D C Winter
- St Vincent's University and Private Hospitals, Dublin
| | - M E Kelly
- St Vincent's University and Private Hospitals, Dublin
| | - E Hoti
- St Vincent's University and Private Hospitals, Dublin
| | - D Maguire
- St Vincent's University and Private Hospitals, Dublin
| | - P Karunakaran
- St Vincent's University and Private Hospitals, Dublin
| | - J G Geoghegan
- St Vincent's University and Private Hospitals, Dublin
| | - S T Martin
- St Vincent's University and Private Hospitals, Dublin
| | - F McDermott
- St Vincent's University and Private Hospitals, Dublin
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- Crosshouse Hospital, Ayrshire and Arran
| | | | - D G Vass
- Crosshouse Hospital, Ayrshire and Arran
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- Glangwili General and Prince Philip Hospital
| | - D Duke
- Glangwili General and Prince Philip Hospital
| | - T Ahmed
- Glangwili General and Prince Philip Hospital
| | - W D Beasley
- Glangwili General and Prince Philip Hospital
| | | | - G Maharaj
- Glangwili General and Prince Philip Hospital
| | - C Malcolm
- Glangwili General and Prince Philip Hospital
| | | | | | | | - R Radwan
- Morriston and Singleton Hospitals
| | | | - S Wood
- Princess of Wales Hospital
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Armano M, Audley H, Auger G, Baird JT, Bassan M, Binetruy P, Born M, Bortoluzzi D, Brandt N, Caleno M, Carbone L, Cavalleri A, Cesarini A, Ciani G, Congedo G, Cruise AM, Danzmann K, de Deus Silva M, De Rosa R, Diaz-Aguiló M, Di Fiore L, Diepholz I, Dixon G, Dolesi R, Dunbar N, Ferraioli L, Ferroni V, Fichter W, Fitzsimons ED, Flatscher R, Freschi M, García Marín AF, García Marirrodriga C, Gerndt R, Gesa L, Gibert F, Giardini D, Giusteri R, Guzmán F, Grado A, Grimani C, Grynagier A, Grzymisch J, Harrison I, Heinzel G, Hewitson M, Hollington D, Hoyland D, Hueller M, Inchauspé H, Jennrich O, Jetzer P, Johann U, Johlander B, Karnesis N, Kaune B, Korsakova N, Killow CJ, Lobo JA, Lloro I, Liu L, López-Zaragoza JP, Maarschalkerweerd R, Mance D, Martín V, Martin-Polo L, Martino J, Martin-Porqueras F, Madden S, Mateos I, McNamara PW, Mendes J, Mendes L, Monsky A, Nicolodi D, Nofrarias M, Paczkowski S, Perreur-Lloyd M, Petiteau A, Pivato P, Plagnol E, Prat P, Ragnit U, Raïs B, Ramos-Castro J, Reiche J, Robertson DI, Rozemeijer H, Rivas F, Russano G, Sanjuán J, Sarra P, Schleicher A, Shaul D, Slutsky J, Sopuerta CF, Stanga R, Steier F, Sumner T, Texier D, Thorpe JI, Trenkel C, Tröbs M, Tu HB, Vetrugno D, Vitale S, Wand V, Wanner G, Ward H, Warren C, Wass PJ, Wealthy D, Weber WJ, Wissel L, Wittchen A, Zambotti A, Zanoni C, Ziegler T, Zweifel P. Sub-Femto-g Free Fall for Space-Based Gravitational Wave Observatories: LISA Pathfinder Results. Phys Rev Lett 2016; 116:231101. [PMID: 27341221 DOI: 10.1103/physrevlett.116.231101] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Indexed: 05/27/2023]
Abstract
We report the first results of the LISA Pathfinder in-flight experiment. The results demonstrate that two free-falling reference test masses, such as those needed for a space-based gravitational wave observatory like LISA, can be put in free fall with a relative acceleration noise with a square root of the power spectral density of 5.2±0.1 fm s^{-2}/sqrt[Hz], or (0.54±0.01)×10^{-15} g/sqrt[Hz], with g the standard gravity, for frequencies between 0.7 and 20 mHz. This value is lower than the LISA Pathfinder requirement by more than a factor 5 and within a factor 1.25 of the requirement for the LISA mission, and is compatible with Brownian noise from viscous damping due to the residual gas surrounding the test masses. Above 60 mHz the acceleration noise is dominated by interferometer displacement readout noise at a level of (34.8±0.3) fm/sqrt[Hz], about 2 orders of magnitude better than requirements. At f≤0.5 mHz we observe a low-frequency tail that stays below 12 fm s^{-2}/sqrt[Hz] down to 0.1 mHz. This performance would allow for a space-based gravitational wave observatory with a sensitivity close to what was originally foreseen for LISA.
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Affiliation(s)
- M Armano
- European Space Astronomy Centre, European Space Agency, Villanueva de la Cañada, 28692 Madrid, Spain
| | - H Audley
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - G Auger
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/lrfu, Obs de Paris, Sorbonne Paris Cité, France
| | - J T Baird
- High Energy Physics Group, Physics Department, Imperial College London, Blackett Laboratory, Prince Consort Road, London, SW7 2BW, United Kingdom
| | - M Bassan
- Dipartimento di Fisica, Università di Roma "Tor Vergata", and INFN, sezione Roma Tor Vergata, I-00133 Roma, Italy
| | - P Binetruy
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/lrfu, Obs de Paris, Sorbonne Paris Cité, France
| | - M Born
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - D Bortoluzzi
- Department of Industrial Engineering, University of Trento, via Sommarive 9, 38123 Trento, and Trento Institute for Fundamental Physics and Applications/INFN, Italy
| | - N Brandt
- Airbus Defence and Space, Claude-Dornier-Strasse, 88090 Immenstaad, Germany
| | - M Caleno
- European Space Technology Centre, European Space Agency, Keplerlaan 1, 2200 AG Noordwijk, Netherlands
| | - L Carbone
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - A Cavalleri
- Istituto di Fotonica e Nanotecnologie, CNR-Fondazione Bruno Kessler, I-38123 Povo, Trento, Italy
| | - A Cesarini
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - G Ciani
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - G Congedo
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - A M Cruise
- The School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom
| | - K Danzmann
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - M de Deus Silva
- European Space Astronomy Centre, European Space Agency, Villanueva de la Cañada, 28692 Madrid, Spain
| | - R De Rosa
- Dipartimento di Fisica, Università di Napoli "Federico II" and INFN-Sezione di Napoli, I-80126, Napoli, Italy
| | - M Diaz-Aguiló
- Institut de Ciències de l'Espai (CSIC-IEEC), Campus UAB, Carrer de Can Magrans s/n, 08193 Cerdanyola del Vallès, Spain
| | - L Di Fiore
- INFN-Sezione di Napoli, I-80126, Napoli, Italy
| | - I Diepholz
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - G Dixon
- The School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom
| | - R Dolesi
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - N Dunbar
- Airbus Defence and Space, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS, United Kingdom
| | - L Ferraioli
- Institut für Geophysik, ETH Zürich, Sonneggstrasse 5, CH-8092, Zürich, Switzerland
| | - V Ferroni
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - W Fichter
- Universitt Stuttgart, Institut fr Flugmechanik und Flugregelung, Pfaffenwaldring 27, 70569 Stuttgart, Germany
| | - E D Fitzsimons
- The UK Astronomy Technology Centre, Royal Observatory, Edinburgh, Blackford Hill, Edinburgh, EH9 3HJ, United Kingdom
| | - R Flatscher
- Airbus Defence and Space, Claude-Dornier-Strasse, 88090 Immenstaad, Germany
| | - M Freschi
- European Space Astronomy Centre, European Space Agency, Villanueva de la Cañada, 28692 Madrid, Spain
| | - A F García Marín
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - C García Marirrodriga
- European Space Technology Centre, European Space Agency, Keplerlaan 1, 2200 AG Noordwijk, Netherlands
| | - R Gerndt
- Airbus Defence and Space, Claude-Dornier-Strasse, 88090 Immenstaad, Germany
| | - L Gesa
- Institut de Ciències de l'Espai (CSIC-IEEC), Campus UAB, Carrer de Can Magrans s/n, 08193 Cerdanyola del Vallès, Spain
| | - F Gibert
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - D Giardini
- Institut für Geophysik, ETH Zürich, Sonneggstrasse 5, CH-8092, Zürich, Switzerland
| | - R Giusteri
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - F Guzmán
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - A Grado
- INAF Osservatorio Astronomico di Capodimonte, I-80131 Napoli, Italy and INFN sezione di Napoli, I-80126 Napoli, Italy
| | - C Grimani
- DISPEA, Università di Urbino "Carlo Bo", Via S. Chiara, 27 61029 Urbino/INFN, Italy
| | - A Grynagier
- Universitt Stuttgart, Institut fr Flugmechanik und Flugregelung, Pfaffenwaldring 27, 70569 Stuttgart, Germany
| | - J Grzymisch
- European Space Technology Centre, European Space Agency, Keplerlaan 1, 2200 AG Noordwijk, Netherlands
| | - I Harrison
- European Space Operations Centre, European Space Agency, 64293 Darmstadt, Germany
| | - G Heinzel
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - M Hewitson
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - D Hollington
- High Energy Physics Group, Physics Department, Imperial College London, Blackett Laboratory, Prince Consort Road, London, SW7 2BW, United Kingdom
| | - D Hoyland
- The School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom
| | - M Hueller
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - H Inchauspé
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/lrfu, Obs de Paris, Sorbonne Paris Cité, France
| | - O Jennrich
- European Space Technology Centre, European Space Agency, Keplerlaan 1, 2200 AG Noordwijk, Netherlands
| | - P Jetzer
- Physik Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - U Johann
- Airbus Defence and Space, Claude-Dornier-Strasse, 88090 Immenstaad, Germany
| | - B Johlander
- European Space Technology Centre, European Space Agency, Keplerlaan 1, 2200 AG Noordwijk, Netherlands
| | - N Karnesis
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - B Kaune
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - N Korsakova
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - C J Killow
- SUPA, Institute for Gravitational Research, School of Physics and Astronomy, University of Glasgow, Glasgow, G12 8QQ, United Kingdom
| | - J A Lobo
- Institut de Ciències de l'Espai (CSIC-IEEC), Campus UAB, Carrer de Can Magrans s/n, 08193 Cerdanyola del Vallès, Spain
| | - I Lloro
- Institut de Ciències de l'Espai (CSIC-IEEC), Campus UAB, Carrer de Can Magrans s/n, 08193 Cerdanyola del Vallès, Spain
| | - L Liu
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - J P López-Zaragoza
- Institut de Ciències de l'Espai (CSIC-IEEC), Campus UAB, Carrer de Can Magrans s/n, 08193 Cerdanyola del Vallès, Spain
| | - R Maarschalkerweerd
- European Space Operations Centre, European Space Agency, 64293 Darmstadt, Germany
| | - D Mance
- Institut für Geophysik, ETH Zürich, Sonneggstrasse 5, CH-8092, Zürich, Switzerland
| | - V Martín
- Institut de Ciències de l'Espai (CSIC-IEEC), Campus UAB, Carrer de Can Magrans s/n, 08193 Cerdanyola del Vallès, Spain
| | - L Martin-Polo
- European Space Astronomy Centre, European Space Agency, Villanueva de la Cañada, 28692 Madrid, Spain
| | - J Martino
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/lrfu, Obs de Paris, Sorbonne Paris Cité, France
| | - F Martin-Porqueras
- European Space Astronomy Centre, European Space Agency, Villanueva de la Cañada, 28692 Madrid, Spain
| | - S Madden
- European Space Technology Centre, European Space Agency, Keplerlaan 1, 2200 AG Noordwijk, Netherlands
| | - I Mateos
- Institut de Ciències de l'Espai (CSIC-IEEC), Campus UAB, Carrer de Can Magrans s/n, 08193 Cerdanyola del Vallès, Spain
| | - P W McNamara
- European Space Technology Centre, European Space Agency, Keplerlaan 1, 2200 AG Noordwijk, Netherlands
| | - J Mendes
- European Space Operations Centre, European Space Agency, 64293 Darmstadt, Germany
| | - L Mendes
- European Space Astronomy Centre, European Space Agency, Villanueva de la Cañada, 28692 Madrid, Spain
| | - A Monsky
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - D Nicolodi
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - M Nofrarias
- Institut de Ciències de l'Espai (CSIC-IEEC), Campus UAB, Carrer de Can Magrans s/n, 08193 Cerdanyola del Vallès, Spain
| | - S Paczkowski
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - M Perreur-Lloyd
- SUPA, Institute for Gravitational Research, School of Physics and Astronomy, University of Glasgow, Glasgow, G12 8QQ, United Kingdom
| | - A Petiteau
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/lrfu, Obs de Paris, Sorbonne Paris Cité, France
| | - P Pivato
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - E Plagnol
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/lrfu, Obs de Paris, Sorbonne Paris Cité, France
| | - P Prat
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/lrfu, Obs de Paris, Sorbonne Paris Cité, France
| | - U Ragnit
- European Space Technology Centre, European Space Agency, Keplerlaan 1, 2200 AG Noordwijk, Netherlands
| | - B Raïs
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/lrfu, Obs de Paris, Sorbonne Paris Cité, France
| | - J Ramos-Castro
- Departament d'Enginyeria Electrònica, Universitat Politècnica de Catalunya, 08034 Barcelona, Spain
| | - J Reiche
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - D I Robertson
- SUPA, Institute for Gravitational Research, School of Physics and Astronomy, University of Glasgow, Glasgow, G12 8QQ, United Kingdom
| | - H Rozemeijer
- European Space Technology Centre, European Space Agency, Keplerlaan 1, 2200 AG Noordwijk, Netherlands
| | - F Rivas
- Institut de Ciències de l'Espai (CSIC-IEEC), Campus UAB, Carrer de Can Magrans s/n, 08193 Cerdanyola del Vallès, Spain
| | - G Russano
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - J Sanjuán
- Institut de Ciències de l'Espai (CSIC-IEEC), Campus UAB, Carrer de Can Magrans s/n, 08193 Cerdanyola del Vallès, Spain
| | - P Sarra
- CGS S.p.A, Compagnia Generale per lo Spazio, Via Gallarate, 150-20151 Milano, Italy
| | - A Schleicher
- Airbus Defence and Space, Claude-Dornier-Strasse, 88090 Immenstaad, Germany
| | - D Shaul
- High Energy Physics Group, Physics Department, Imperial College London, Blackett Laboratory, Prince Consort Road, London, SW7 2BW, United Kingdom
| | - J Slutsky
- Gravitational Astrophysics Lab, NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, Maryland 20771, USA
| | - C F Sopuerta
- Institut de Ciències de l'Espai (CSIC-IEEC), Campus UAB, Carrer de Can Magrans s/n, 08193 Cerdanyola del Vallès, Spain
| | - R Stanga
- Dipartimento di Fisica ed Astronomia, Università degli Studi di Firenze and INFN-Sezione di Firenze, I-50019 Firenze, Italy
| | - F Steier
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - T Sumner
- High Energy Physics Group, Physics Department, Imperial College London, Blackett Laboratory, Prince Consort Road, London, SW7 2BW, United Kingdom
| | - D Texier
- European Space Astronomy Centre, European Space Agency, Villanueva de la Cañada, 28692 Madrid, Spain
| | - J I Thorpe
- Gravitational Astrophysics Lab, NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, Maryland 20771, USA
| | - C Trenkel
- Airbus Defence and Space, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS, United Kingdom
| | - M Tröbs
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - H B Tu
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - D Vetrugno
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - S Vitale
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - V Wand
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - G Wanner
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - H Ward
- SUPA, Institute for Gravitational Research, School of Physics and Astronomy, University of Glasgow, Glasgow, G12 8QQ, United Kingdom
| | - C Warren
- Airbus Defence and Space, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS, United Kingdom
| | - P J Wass
- High Energy Physics Group, Physics Department, Imperial College London, Blackett Laboratory, Prince Consort Road, London, SW7 2BW, United Kingdom
| | - D Wealthy
- Airbus Defence and Space, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS, United Kingdom
| | - W J Weber
- Dipartimento di Fisica, Università di Trento and Trento Institute for Fundamental Physics and Applications/INFN, 38123 Povo, Trento, Italy
| | - L Wissel
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - A Wittchen
- Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik und Leibniz Universität Hannover, Callinstraße 38, 30167 Hannover, Germany
| | - A Zambotti
- Department of Industrial Engineering, University of Trento, via Sommarive 9, 38123 Trento, and Trento Institute for Fundamental Physics and Applications/INFN, Italy
| | - C Zanoni
- Department of Industrial Engineering, University of Trento, via Sommarive 9, 38123 Trento, and Trento Institute for Fundamental Physics and Applications/INFN, Italy
| | - T Ziegler
- Airbus Defence and Space, Claude-Dornier-Strasse, 88090 Immenstaad, Germany
| | - P Zweifel
- Institut für Geophysik, ETH Zürich, Sonneggstrasse 5, CH-8092, Zürich, Switzerland
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Mawad D, Warren C, Barton M, Mahns D, Morley J, Pham BT, Pham NT, Kueh S, Lauto A. Lysozyme depolymerization of photo-activated chitosan adhesive films. Carbohydr Polym 2015; 121:56-63. [DOI: 10.1016/j.carbpol.2014.12.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 12/08/2014] [Accepted: 12/10/2014] [Indexed: 02/07/2023]
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Krajnak K, Waugh S, Johnson C, Miller RG, Welcome D, Xu X, Warren C, Sarkisian S, Andrew M, Dong RG. Antivibration gloves: effects on vascular and sensorineural function, an animal model. J Toxicol Environ Health A 2015; 78:571-82. [PMID: 25965192 PMCID: PMC4700820 DOI: 10.1080/15287394.2015.1014079] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Anti-vibration gloves have been used to block the transmission of vibration from powered hand tools to the user, and to protect users from the negative health consequences associated with exposure to vibration. However, there are conflicting reports as to the efficacy of gloves in protecting workers. The goal of this study was to use a characterized animal model of vibration-induced peripheral vascular and nerve injury to determine whether antivibration materials reduced or inhibited the effects of vibration on these physiological symptoms. Rats were exposed to 4 h of tail vibration at 125 Hz with an acceleration 49 m/s(2). The platform was either bare or covered with antivibrating glove material. Rats were tested for tactile sensitivity to applied pressure before and after vibration exposure. One day following the exposure, ventral tail arteries were assessed for sensitivity to vasodilating and vasoconstricting factors and nerves were examined histologically for early indicators of edema and inflammation. Ventral tail artery responses to an α2C-adrenoreceptor agonist were enhanced in arteries from vibration-exposed rats compared to controls, regardless of whether antivibration materials were used or not. Rats exposed to vibration were also less sensitive to pressure after exposure. These findings are consistent with experimental findings in humans suggesting that antivibration gloves may not provide protection against the adverse health consequences of vibration exposure in all conditions. Additional studies need to be done examining newer antivibration materials.
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Affiliation(s)
- K Krajnak
- a Engineering and Controls Technology Branch , National Institute for Occupational Safety and Health , Morgantown , West Virginia , USA
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Thomas R, Hough M, Richardson L, Warren C, Davies O. An audit of do not attempt cardiopulmonary resuscitation orders in a District General Hospital. Resuscitation 2013. [DOI: 10.1016/j.resuscitation.2013.08.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Warren C, Abuya T, Ndwiga C, Njuki R. I383 FINDINGS FROM KENYA: BARRIERS TO SKILLED BIRTH ATTENDANCE: DISRESPECT AND ABUSE DURING HEALTH FACILITY DELIVERIES. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)60413-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Njue R, Warren C, Obare F, Abuya T, Kanya L, Fulton M, Bellows B. O500 SOCIAL AUTOPSY FOR MATERNAL DEATHS: INVESTIGATING THE CAUSES OF AND CONTRIBUTORS TO MATERNAL MORTALITY IN KENYA. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)60930-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
Acute gastric volvulus is an uncommon entity that requires prompt diagnosis and management to prevent potential life threatening complications. We present a rare case of splenic laceration secondary to acute gastric volvulus.
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Affiliation(s)
- C Warren
- South Eastern Health and Social Care Trust, UK.
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Affiliation(s)
- C Warren
- Department of Colorectal Surgery, Royal Victoria Hospital, Belfast, Northern Ireland, UK
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Warren C, Mwangi A, Liambila W. P328 Understanding obstetric fistula: findings from four districts in Kenya. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)61820-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mazia G, Narayanan I, Warren C, Mahdi M, Chibuye P, Walligo A, Mabuza P, Shongwe R, Hainsworth M. Integrating quality postnatal care into PMTCT in Swaziland. Glob Public Health 2009; 4:253-70. [PMID: 19437214 DOI: 10.1080/17441690902769669] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Swaziland's prevention of mother-to-child transmission (PMTCT) programme is linked to maternal and newborn health (MNH) services, but is mainly focussed on HIV/AIDS. Existing MNH services are inadequate, especially postnatal care (PNC) of mothers and babies, with delayed postnatal visits occurring at 4-6 weeks after delivery. Fifty-seven percent of staff in seven Swazi health facilities were trained in promoting and providing early PNC. A final evaluation showed a 20-fold increase in the number of visits coming for an early postnatal visit (within the first three days after birth). A direct observation of the client-provider interaction showed a significant increase in the competence of the health workers related to postnatal examinations, and care of mothers and babies (p<0.05- < 0.01). The percentage of women breastfeeding within one hour of delivery increased by 41% in HIV-positive mothers and 52% in HIV-negative mothers. Cotrimoxazole prophylaxis for HIV-exposed infants increased by 24%. Although, health workers were observed providing counselling, maternal recall of messages was deficient, suggesting the need for additional strategies for promoting healthy behaviours. High-quality integrated PMTCT programmes and MNH postnatal services are feasible and acceptable, and can result in promoting early postnatal visits and improved care of both HIV-positive and HIV-negative mothers and their babies.
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Affiliation(s)
- G Mazia
- The United States Agency for International Development, Basic Support for Institutionalising Child Survival Project (USAID/BASICS), Arlington, VA, USA.
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McDowell TW, Dong RG, Xu X, Welcome DE, Warren C. An evaluation of impact wrench vibration emissions and test methods. Ann Occup Hyg 2008; 52:125-38. [PMID: 18212244 DOI: 10.1093/annhyg/mem064] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In the interest of providing more effective evaluations of impact wrench vibration exposures and the development of improved methods for measuring vibration emissions produced by these tools, this study focused on three variables: acceleration measured at the tool surface, vibration exposure duration per test trial, and the amount of torque required to unseat the nuts following a test trial. For this evaluation, six experienced male impact wrench operators used three samples each of five impact wrench models (four pneumatic models and one battery-powered model) in a simulated work task. The test setup and procedures were based on those provided by an International Organization for Standardization (ISO) Technical Committee overseeing the revision of ISO 8662-7. The work task involved the seating of 10 nuts onto 10 bolts mounted on steel plates. The results indicate that acceleration magnitudes vary not only by tool type but also by individual tools within a type. Thus, evaluators are cautioned against drawing conclusions based on small numbers of tools and/or tool operators. Appropriate sample sizes are suggested. It was further noted that evaluators could draw different conclusions if tool assessments are based on ISO-weighted acceleration as opposed to unweighted acceleration. As expected, vibration exposure durations varied by tool type and by test subject; duration means varied more for study participants than they did for tool types. For the 12 pneumatic tools evaluated in this study, torque varied directly with tool handle acceleration. Therefore, in order to reduce vibration exposure, tools should be selected and adjusted so that they produce no more than the needed torque for the task at hand.
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Affiliation(s)
- Thomas W McDowell
- National Institute for Occupational Safety and Health (NIOSH), NIOSH Health Effects Lab, 1095 Willowdale Road, Morgantown, WV 26505, USA.
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Abstract
The concentration of CO2 in the chloroplast is less than atmospheric owing to a series of gas-phase and liquid-phase resistances. For a long time it was assumed that the concentration of CO2 in the chloroplasts is the same as in the intercellular spaces (e.g. as measured by gas exchange). There is mounting evidence that this assumption is invalid and that CO2 concentrations in the chloroplasts are significantly less than intercellular CO2. It is now generally accepted that internal conductance (gi) is a significant limitation to photosynthesis, often as large as that due to stomata. Internal conductance describes this decrease in CO2 concentration between the intercellular spaces and chloroplasts as a function of net photosynthesis [gi = A/(Ci - Cc)]. Internal conductance is commonly estimated by simultaneous measurements of gas exchange and chlorophyll a fluorescence or instantaneous discrimination against 13CO2. These common methods are complemented by three alternative methods based on (a) the difference between intercellular and chloroplastic CO2 photocompensation points, (b) the curvature of an A/Ci curve, and (c) the initial slope of an A/Ci curve v. the estimated initial slope of an A/Cc curve. The theoretical basis and protocols for estimating internal conductance are described. The common methods have poor precision with relative standard deviations commonly > 10%; much less is known of the precision of the three alternative methods. Accuracy of the methods is largely unknown because all methods share some common assumptions and no truly independent and assumption-free method exists. Some assumptions can and should be tested (e.g. the relationship of fluorescence with electron transport). Methods generally require knowledge of either the kinetic parameters of Rubisco, or isotopic fractionation by Rubisco. These parameters are difficult to measure, and thus are generally assumed a priori. For parameters such as these a sensitivity analysis is recommended. One means of improving confidence in gi estimates is by using two or more methods, but it is essential that the methods chosen share as few common assumptions as possible. All methods require accurate and precise measurements of A and Ci - these are best achieved by minimising leaks, maximising the signal-to-noise ratio by using a large leaf area and moderate flow rate, and by taking into account cuticular and boundary layer conductances.
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Affiliation(s)
- Charles Warren
- School of Forest and Ecosystem Science, The University of Melbourne, Water Street, Creswick, Vic. 3363, Australia
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Warren C. Estimating the internal conductance to CO 2 movement. Funct Plant Biol 2006; 33:431-442. [PMID: 32689250 DOI: 10.1071/fp05298] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2005] [Accepted: 02/02/2006] [Indexed: 06/11/2023]
Abstract
The concentration of CO2 in the chloroplast is less than atmospheric owing to a series of gas-phase and liquid-phase resistances. For a long time it was assumed that the concentration of CO2 in the chloroplasts is the same as in the intercellular spaces (e.g. as measured by gas exchange). There is mounting evidence that this assumption is invalid and that CO2 concentrations in the chloroplasts are significantly less than intercellular CO2. It is now generally accepted that internal conductance (gi) is a significant limitation to photosynthesis, often as large as that due to stomata. Internal conductance describes this decrease in CO2 concentration between the intercellular spaces and chloroplasts as a function of net photosynthesis [gi = A / (Ci - Cc)]. Internal conductance is commonly estimated by simultaneous measurements of gas exchange and chlorophyll a fluorescence or instantaneous discrimination against 13CO2. These common methods are complemented by three alternative methods based on (a) the difference between intercellular and chloroplastic CO2 photocompensation points, (b) the curvature of an A / Ci curve, and (c) the initial slope of an A / Ci curve v. the estimated initial slope of an A / Cc curve. The theoretical basis and protocols for estimating internal conductance are described. The common methods have poor precision with relative standard deviations commonly > 10%; much less is known of the precision of the three alternative methods. Accuracy of the methods is largely unknown because all methods share some common assumptions and no truly independent and assumption-free method exists. Some assumptions can and should be tested (e.g. the relationship of fluorescence with electron transport). Methods generally require knowledge of either the kinetic parameters of Rubisco, or isotopic fractionation by Rubisco. These parameters are difficult to measure, and thus are generally assumed a priori. For parameters such as these a sensitivity analysis is recommended. One means of improving confidence in gi estimates is by using two or more methods, but it is essential that the methods chosen share as few common assumptions as possible. All methods require accurate and precise measurements of A and Ci - these are best achieved by minimising leaks, maximising the signal-to-noise ratio by using a large leaf area and moderate flow rate, and by taking into account cuticular and boundary layer conductances.
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Affiliation(s)
- Charles Warren
- School of Forest and Ecosystem Science, The University of Melbourne, Water Street, Creswick, Vic. 3363, Australia. Email
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Lausted C, Dahl T, Warren C, King K, Smith K, Johnson M, Saleem R, Aitchison J, Hood L, Lasky SR. POSaM: a fast, flexible, open-source, inkjet oligonucleotide synthesizer and microarrayer. Genome Biol 2004; 5:R58. [PMID: 15287980 PMCID: PMC507883 DOI: 10.1186/gb-2004-5-8-r58] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.6] [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] [Subscribe] [Scholar Register] [Received: 04/21/2004] [Revised: 06/02/2004] [Accepted: 06/24/2004] [Indexed: 11/10/2022] Open
Abstract
DNA arrays are valuable tools in molecular biology laboratories. Their rapid acceptance was aided by the release of plans for a pin-spotting microarrayer by researchers at Stanford. Inkjet microarraying is a flexible, complementary technique that allows the synthesis of arrays of any oligonucleotide sequences de novo. We describe here an open-source inkjet arrayer capable of rapidly producing sets of unique 9,800-feature arrays.
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Affiliation(s)
- Christopher Lausted
- The Institute for Systems Biology, 1441 North 34th Street, Seattle, WA 98103, USA
| | - Timothy Dahl
- The Institute for Systems Biology, 1441 North 34th Street, Seattle, WA 98103, USA
| | - Charles Warren
- The Institute for Systems Biology, 1441 North 34th Street, Seattle, WA 98103, USA
| | - Kimberly King
- The Institute for Systems Biology, 1441 North 34th Street, Seattle, WA 98103, USA
| | - Kimberly Smith
- The Institute for Systems Biology, 1441 North 34th Street, Seattle, WA 98103, USA
| | - Michael Johnson
- The Institute for Systems Biology, 1441 North 34th Street, Seattle, WA 98103, USA
| | - Ramsey Saleem
- The Institute for Systems Biology, 1441 North 34th Street, Seattle, WA 98103, USA
| | - John Aitchison
- The Institute for Systems Biology, 1441 North 34th Street, Seattle, WA 98103, USA
| | - Lee Hood
- The Institute for Systems Biology, 1441 North 34th Street, Seattle, WA 98103, USA
| | - Stephen R Lasky
- The Institute for Systems Biology, 1441 North 34th Street, Seattle, WA 98103, USA
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Dong RG, Schopper AW, McDowell TW, Welcome DE, Wu JZ, Smutz WP, Warren C, Rakheja S. Vibration energy absorption (VEA) in human fingers-hand-arm system. Med Eng Phys 2004; 26:483-92. [PMID: 15234684 DOI: 10.1016/j.medengphy.2004.02.003] [Citation(s) in RCA: 50] [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] [Received: 09/17/2002] [Revised: 12/03/2003] [Accepted: 02/18/2004] [Indexed: 10/26/2022]
Abstract
A methodology for measuring the vibration energy absorbed into the fingers and the palm exposed to vibration is proposed to study the distribution of the vibration energy absorption (VEA) in the fingers-hand-arm system and to explore its potential association with vibration-induced white finger (VWF). The study involved 12 adult male subjects, constant-velocity sinusoidal excitations at 10 different discrete frequencies in the range of 16-1000 Hz, and four different hand-handle coupling conditions (finger pull-only, hand grip-only, palm push-only, and combined grip and push). The results of the study suggest that the VEA into the fingers is considerably less than that into the palm at low frequencies (< or = 25 Hz). They are, however, comparable under the excitations in the 250-1000 Hz frequency range. The finger VEA at high frequencies (> or = 100 Hz) is practically independent of the hand-handle coupling condition. The coupling conditions affect the VEA into the fingers and the palm very differently. The finger VEA results suggest that the ISO standardized frequency weighting (ISO 5349-1, 2001) may underestimate the effect of high frequency vibration on vibration-induced finger disorders. The proposed method may provide new opportunities to examine VEA and its association with VWF and other types of vibration-induced disorders in the hand-arm system.
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Affiliation(s)
- R G Dong
- National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV 26505, USA.
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