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Yu D Sackllah ME Woolley CB Kasten SJ Kim D Green C Armstrong TJ 《Work (Reading, Mass.)》2012,41(Z1):5634-5636
The operating microscopes may be a significant cause of fatigue and discomfort in surgeons. The need for the microscope to be placed over the operating field forces surgeons to remain at the microscope's eyepieces at an uncomfortable posture for the entirety of the surgery. This study compared the effects on microsurgical task performance for four visualization methods: a monocular microscope, a binocular microscope, a three-dimensional (3D) flat-panel television display and a two-dimensional (2D) flat-panel television display. Eleven subjects each performed two microsurgical tasks and their performance was documented by video camera. The statistical analysis performed indicated utilization of the microscope as a visualization method increased subject performance. No significant difference in performance between the 2D and stereoscopic visualization methods. 相似文献
264.
A scenario of an automotive accident caused by tire failure is given followed by a human factors analysis of the information available to consumers on tire aging. Consumers have not been told that the age of the tire is a safety concern. It is not easy to decode the date of manufacture on tires. More publicity and prominent warnings are needed to communicate the dangers of older tires. Also, better ways to present the date of manufacture so that consumers can more easily and accurately assess tire age are needed. 相似文献
265.
Psychosocial factors, individual factors, workplace requirements, and workplace organizational factors have all been reported as being associated with the risk of musculoskeletal disorders [11]. Huang, Feuerstein, and Sauter [5] described the various concepts and models proposed to link occupational stress and work-related upper extremity disorders, as well as the difficulty in verifying the suggested linkages. Huang et al. [5] suggested that decomposing a complex model would be an appropriate method to begin the investigations of the proposed models. Task repetition is a workplace requirement that is considered a potential risk factor for cumulative trauma and its relationship to psychosocial factors was investigated. The study found only weak to no statistically significant relationship between task repetition and reported psychosocial factors of job stress in workers in Taiwan. 相似文献
266.
Valkanoff TA Kline-Simon AH Sterling S Campbell C Von Korff M 《Journal of social work in disability & rehabilitation》2012,11(2):128-142
This study of 2,163 adult chronic, non-cancer-pain, long-term opioid therapy patients examines the relationship of depression to functional disability by measuring average pain interference, activity limitation days, and employment status. Those with more depression symptoms compared to those with fewer were more likely to have worse disability on all 3 measures (average pain interference score >5, OR = 5.36, p < .0001; activity limitation days ≥ 30, OR = 4.05, p < .0001; unemployed due to health reasons, OR = 4.06, p < .0001). Depression might play a crucial role in the lives of these patients; identifying and treating depression symptoms in chronic pain patients should be a priority. 相似文献
267.
Recently there has been increased interest in developing methods for measuring poverty in a way that takes into account the lifetime experience of individuals. We analyze some specific proposals that take the so-called spells approach and consider how they differ in the manner in which they address issues of lifetime poverty, most notably the measurement of chronic poverty. Comparing these specific measures by applying them to a US panel data set, we provide important insights for further research in conceptualizing and measuring lifetime poverty. 相似文献
268.
Michael Malcolm 《Review of Economics of the Household》2012,10(1):133-151
I propose a noncooperative marriage model that explicitly accommodates the possibility of endogenous exit and remarriage,
and where marriages are of variable quality. The fundamental innovation is that the remarriage decision is infinitely repeated
and the problem is fully stationary, reflecting the contemporary reality in marriage markets. I show that cooperative behavior
within marriage is possible in subgame perfect equilibrium both in a setting where marriage quality is independently drawn
and in a setting with persistent spouse-specific characteristics and an evolving marriage market quality. I show that spouses
engage in cooperative behavior most easily when they have intermediate patience levels, which is a non-standard but intuitive
game theoretic result in this setting. This model also contributes to the game theory literature by proposing another avenue
for sustained cooperation in a repeated prisoner’s dilemma with endogenous exit: randomness in payoff streams. 相似文献
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270.
Small Area Indices of Multiple Deprivation in South Africa 总被引:1,自引:0,他引:1
Michael Noble Helen Barnes Gemma Wright Benjamin Roberts 《Social indicators research》2010,95(2):281-297
This paper presents the Provincial Indices of Multiple Deprivation that were constructed by the authors at ward level using
2001 Census data for each of South Africa’s nine provinces. The principles adopted in conceptualising the indices are described
and multiple deprivation is defined as a weighted combination of discrete dimensions of deprivation. The methodological approach
used is outlined and key findings are presented for one province—the Eastern Cape. The paper summarises the ways in which
the research is being developed further and the potential uses of these tools for policy and research. 相似文献