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RISS 인기검색어
- 검색키워드
- 저자 : Hornsby, W A (검색결과 3 건)
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A Cluster of Health Symptoms After a Law Enforcement Operation: A Case Study
Chiu Sophia K.,Hornsby-Myers Jennifer,Iverson Christopher,Trout Douglas 한국산업안전보건공단 산업안전보건연구원 2022 Safety and health at work Vol.13 No.4
Law enforcement officers (LEOs) often encounter rapidly changing and uncontrolled situations that expose them to various hazards. A law enforcement agency requested an evaluation by the National Institute for Occupational Safety and Health (NIOSH) when multiple LEOs reported illness after executing a search warrant and taking a suspect into custody. NIOSH investigators interviewed LEOs and reviewed medical records, forensic laboratory results for collected evidence, and environmental testing results of samples taken after the operation. Two-thirds (25 of 38) of LEOs who participated in the operation reported ≥1 symptom. Eleven LEOs met a case definition for influenza-like illness (ILI). Members of one unit were more likely to have ILI than non-members (prevalence ratio (PR), 4.1; 95% confidence interval (CI): 1.3–13.0; p = 0.01). Influenza vaccination was associated with a lower prevalence of ILI (PR, 0.2; 95% CI, 0.1–0.9; p = 0.02). Preventing employees from working while ill and annual influenza vaccination might prevent similar occurrences.
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Hyun Ju Yoon,Kye Hun Kim,Kyle Hornsby,Jae Hyeong Park,Hyukjin Park,Hyung Yoon Kim,Jae Yeong Cho,Youngkeun Ahn,Myung Ho Jeong,Jeong Gwan Cho 대한심장학회 2021 Korean Circulation Journal Vol.51 No.5
Background and Objectives: There is little data about cardiac geometry in highly trained young athletes, especially female specific changes. We investigated gender difference on exercise induced cardiac remodeling (EICR) in highly trained university athletes. Methods: A total of 1,185 university athletes divided into 2 groups; female (n=497, 22.0±2.3 years) vs. male (n=688, 22.6±2.4 years). Remodeling of the left ventricle (LV), left atrium (LA), right ventricle (RV), and any cardiac chamber were compared. Results: LV, LA, RV, and any remodeling was found in 156 (13.2%), 206 (17.4%), 82 (6.9%), and 379 athletes (31.9%), respectively. LV, LA, and any remodeling were more common in male than female athletes (n=53, 12.1% vs. n=103, 15.5%, p=0.065), (n=65, 13.1% vs. n=141, 20.5%, p<0.001), (n=144, 30.0% vs. n=235, 34.2%, p=0.058), respectively, whereas RV remodeling was significantly more common in female than male athletes (n=56, 11.3% vs. n=26, 3.8%, p<0.001). Interestingly, the development of LV, LA, and RV remodeling were not overlapped in many of athletes, suggesting different mechanism of EICR according to cardiac chamber. Various predictors including sports type, heart rate, muscle mass, fat mass, body surface area, and training time were differently involved in cardiac remodeling, and there were gender differences of these predictors for cardiac remodeling. Conclusions: EICR was common in both sex and was independently developed among cardiac chambers in highly trained university athletes. LV and LA remodeling were common in males, whereas RV remodeling was significantly more common in females demonstrating gender difference in EICR. The present study also demonstrated gender difference in the predictors of EICR.
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Experimental observations and modelling of intrinsic rotation reversals in tokamaks
Camenen, Y,Angioni, C,Bortolon, A,Duval, B P,Fable, E,Hornsby, W A,McDermott, R M,Na, D H,Na, Y-S,Peeters, A G,Rice, J E IOP 2017 Plasma physics and controlled fusion Vol.59 No.3
<P>The progress made in understanding spontaneous toroidal rotation reversals in tokamaks is reviewed and current ideas to solve this ten-year-old puzzle are explored. The paper includes a summarial synthesis of the experimental observations in AUG, C-Mod, KSTAR, MAST and TCV tokamaks, reasons why turbulent momentum transport is thought to be responsible for the reversals, a review of the theory of turbulent momentum transport and suggestions for future investigations.</P>
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