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John R. Richards,Taylor L. Stayton,Jason A. Wells,Aman K. Parikh,Erik G. Laurin 대한응급의학회 2018 Clinical and Experimental Emergency Medicine Vol.5 No.4
Objective Determine differences between faculty, residents, and nurses regarding night shift preparation, performance, recovery, and perception of emotional and physical health effects. Methods Survey study performed at an urban university medical center emergency department with an accredited residency program in emergency medicine. Results Forty-seven faculty, 37 residents, and 90 nurses completed the survey. There was no difference in use of physical sleep aids between groups, except nurses utilized blackout curtains more (69%) than residents (60%) and faculty (45%). Bedroom temperature preference was similar. The routine use of pharmacologic sleep aids differed: nurses and residents (both 38%) compared to faculty (13%). Residents routinely used melatonin more (79%) than did faculty (33%) and nurses (38%). Faculty preferred not to eat (45%), whereas residents (24%) preferred a full meal. The majority (>72%) in all groups drank coffee before their night shift and reported feeling tired despite their routine, with 4:00 a.m. as median nadir. Faculty reported a higher rate (41%) of falling asleep while driving compared to residents (14%) and nurses (32%), but the accident rate (3% to 6%) did not differ significantly. All had similar opinions regarding night shift-associated health effects. However, faculty reported lower level of satisfaction working night shifts, whereas nurses agreed less than the other groups regarding increased risk of drug and alcohol dependence. Conclusion Faculty, residents, and nurses shared many characteristics. Faculty tended to not use pharmacologic sleep aids, not eat before their shift, fall asleep at a higher rate while driving home, and enjoy night shift work less.
[우수논문] 안드로이드 기반 스마트폰의 사용자 응답성 향상을 위한 프레임워크 지원 우선순위 부스트 기법
손용석,허승주,유종훈,Richard Taylor,홍성수 한국정보과학회 2012 한국정보과학회 학술발표논문집 Vol.39 No.1D
최근 안드로이드 플랫폼을 탑재한 스마트폰이 널리 보급되면서 안드로이드 플랫폼에 대한 관심은 더욱 커지고 있다. 하지만 안드로이든 스마트폰은 종종 양질의 사용자 응답성을 제공하지 못하는 것으로 알려져 있다. 이는 안드로이드 상에서 대화형 태스크가 다른 태스크와 구별되지 않고 동일한 우선순위로 스케줄링 되기 때문에 사용자 입력을 처리하는 동안 여러 번의 선점을 당해 긴 응답시간을 초래할 수 있기 때문이다. 이 논문은 안드로이드 스마트폰의 사용자 응답성 향상을 위해 프레임워크 지원 우선순위 부스트 기법을 제시한다. 제안된 기법은 프레임워크 레벨에서 대화형 태스크를 식별하고 이를 커널에게 전달하며, 커널 레벨에서는 식별된 태스크의 우선순위 를 선별적으로 부스트 시킴으로써 선점 없이 사용자 입력을 처리할 만큼 충분한 시간을 보장해 준다. 실험 결과는 제안된 기법이 기존 시스템보다 최대 22% 단축된 응답 시간을 보여 제안된 기법의 효용성을 입증하였다.
Nonlinear characteristics in the magnetoconductance of electron billiards
Matthew S. Fairbanks,Colleen A. Marlow,Richard P. Taylor,Heiner Linke 한국물리학회 2008 Current Applied Physics Vol.8 No.3,4
The effect of an applied bias on transport through an electron billiard is studied by analysis of magnetoconductance uctuations. It isshown that at low bias, nonlinear eects are well-described by electron heating alone, while at higher bias (V > 2 mV, or approximately 5% of the electron Fermi energy) non-equilibrium eects become signicant. We chart this behavior by examining the eective electrontemperature plotted against the empirical parameter Q (average energy level spacing over energy level broadening) and the spectral scal-ing exponent a. The high bias data shows a departure from a curve composed of lattice temperature data for the same device, which indicates a change in electron dynamics within the billiard.
Fong, James,Gyaneshwar, Rajaneshwar,Lin, Sophia,Morrell, Stephen,Taylor, Richard,Brassil, Ann,Stuart, Anne,McGowan, Catherine Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.24
The purpose of this study was to demonstrate the feasibility of VIA screening with cryotherapy and to record normative values for indicators anticipated in similar low resource settings. Women aged 30-49 years were targeted, resulting in 1961 women screened and treated at two primary health care (PHC) centres near Suva, Fiji. Recruitment was through provision of information, education and communication (IEC). Referrals to a gynaecology outpatient department (OPD) at a referral hospital occurred throughout the screening pathway. Participation was 32% (95%CI 31-33%), higher in iTaukei (Melanesians) women (34%, 95%CI 33-36) compared to Fijians of Indian descent (26%, 95%CI 24-28). Regression analysis, adjusted for confounders, indicated significantly lower participation in those of Indian descent, and age groups 35-39 and 45-49 years. Of those examined by VIA, 190 were positive with aceto-white lesions (9.9%), within the expected range of 8-15%, with minor geographic and ethnic variation. Positive VIA results were more common in the peri-urban area, and in those aged 35-39 years. Of women aged 30-49 years, 59 received cryotherapy (none of whom had significant complications), 91 were referred to OPD, two cervical carcinomas were identified and eight cervical intra-epithelial neoplasms (CIN) II-III were diagnosed. These results provide normative findings from a community-based VIA screening program for other similar low resource settings.