Comparison of ergonomic risk assessment outputs from Rapid Upper Limb Assessment and the Strain Index for tasks in automotive assembly plants

This paper compares the ergonomic risk assessment of a task for the upper extremities as determined by Rapid Upper Extremity Assessment (RULA) and the Strain Index (SI). The ergonomic risk to the upper extremities of 244 automotive assembly plant tasks were evaluated using RULA and SI. The outcomes of each tool were compared for each task. Results from this study provide practical insight into the methods used in each tool. This study compared only the ergonomic risk outputs from each tool; it does not pursue the question of which tool best predicts injury. The kappa score was 0.11, indicating little agreement between the outputs of the two tools. This is supported by the lack of monotonicity with a gamma score of 0.1. These results indicate that the risk assessment outcome of these two ergonomic assessment tools for the upper extremities do not agree.     

A graph theoretic blocking procedure for social networks

Everett and Nieminen have extended the Boyle homomorphism from undirected to directed graphs. Some sociological considerations implemented in conjunction with the homomorphism, indicate the structural importance of small cycles. These cycles are then used to construct an algorithm, which will produce a blocking of a social network. The algorithm is then tested on Sampson's monastery data (Sampson 1969).     

Evidence for and against the 'double penalty' thesis in the science and engineering fields

This study examines how race and gender affect the economic status of scientists and engineers. Using data from the 1989 Survey of Natural and Social Scientists and Engineers, the wage rates of minority females are compared with those of white males, white females, and minority males for the native-born population and immigrants. The results reveal Asian women's parity with white men in some contexts. Economic discrimination holds up for black and white women only. There is also evidence that institutional contexts affect men and women with similar characteristics in different ways. The findings challenge the claim for universalism but offer some support for the discipline-dependence hypothesis.     

对待美好 我们选择宽容

正我在澳大利亚北部旅行时,途经一个土著人居留地,在一家小餐馆歇脚吃饭。收银员是一个土著女孩,正与一个老年人聊天。他们聊得热火朝天,顾客越积越多,开始形成了一个队伍。女孩聊兴正浓,似乎忘掉了客人,于是,队伍排得更长了。     

A qualitative analysis of suicide risk factors,preferred means,and means restriction feasibility within a homeless shelter environment

Suicide completion rates among homeless individuals are approximately nine times higher than the general population. The purpose of this study was to capture the state of social support among homeless individuals, understand how homeless community members support peers in crisis, examine the awareness of suicidal ideation, identify common methods for suicide, and generate strategies for means restriction within a shelter. Twenty individuals residing at an emergency shelter were interviewed. Participants were of diverse cultural identities overrepresented in the sample relative to the general population. Interviews revealed that 40% of participants lacked social support. However, the majority indicated that if they encountered someone at risk for suicide, they would provide support and encouragement to the at-risk individual. Almost half of participants reported knowing of an individual in the shelter who had previously attempted suicide and/or was currently or previously feeling suicidal. Overdose was identified as a primary method for suicide; however, the majority of participants were unable to generate strategies for means restriction. The present study offers a glimpse into the experience of homeless individuals and provides valuable information regarding risk factors for suicide within this highly marginalized and underserved population.     

The state of things: state history and theory reconfigured

This article looks at the relationship between logistical power and the assemblages of sites that constitute modern states. Rather than treating states as centralizing institutions and singular sites of power, we treat them as multi-sited. They gain power by using logistical methods of problem solving, using infrastructures to enforce and depersonalize relations of domination and limit the autonomy of elites. But states necessarily solve diverse problems by different means in multiple locations. So, educating children is not continuous with governing colonies even though both are necessary to nineteenth-century states. For this reason, states use logistical means of coordination to link sites, and they make the power of the state seem unitary even though the exercise of state power is not.     

The use of public transportation in urban areas: Toward a causal model

In this study, using the statistical models recently introduced by Goodman, we analyze the reasons why individuals choose the car or public transportation for the journey to work and draw out some of the implications of our analysis for public policy. Building on the work of Schnore, we develop a model in which both structural and individual variables are interrelated and show that the structural contexts within which individuals make decisions about their choice are crucial. We also show that, while status differentials are largely accounted for by income differences, male preferences for the automobile tend not to be due either to the structural variables or to income differences. Our findings suggest that present policies designed to induce people to shift to public transportation for the journey to work are not likely to be effective, since they do nothing to alter present cost differentials between the two modes.     

Family cap provisions and changes in births and abortions

As part of welfare reform efforts in the 1990s, 23 states implemented family caps, provisions that deny or reduce cash assistance to welfare recipients who have additional births. We use birth and abortion records from 24 states to estimate effects of family caps on birth and abortion rates. We use age, marital status, and completed schooling to identify women at high risk for use of public assistance, and parity (number of previous live births) to identify those most directly affected by the family cap. In family cap states, birth rates fell more and abortion rates rose more among high-risk women with at least one previous live birth compared to similar childless women, consistent with an effect of the family cap. However, this parity-specific pattern of births and abortions also occurred in states that implemented welfare reform with no family cap. Thus, the effects of welfare reform may have differed between mothers and childless women, but there is little evidence of an independent effect of the family cap.