VALIDATION OF A DIARY MEASURE OF CHILDREN'S PHYSICAL ACTIVITIES

This study compares levels of physical activity of 9–14-year-old children from a self-reported time diary with those measured using an accelerometer. Children (N = 92) wore an accelerometer for one weekend day and completed a 24-hour time diary for that day. The time children spent in moderate to vigorous physical activity from time diaries was moderately highly correlated with the measured results. Self-reported and objective measures of intensity were correlated, but the correlation varied substantially by activity and characteristics of the family. This study provides empirical evidence to support the validity of time-diary estimates when accelerometer data are not available.     

The Moment Bound is Tighter than Chernoff's Bound for Positive Tail Probabilities

Chernoff's bound on P[X ? t] is used almost universally when a tight bound on tail probabilities is required. In this article we show that for all positive t and for all distributions, the moment bound is tighter than Chernoff's bound. By way of example, we demonstrate that the improvement is often substantial.     

The meaning of workplace discrimination for women with disabilities

Studies have found that persons with disabilities who are also members of other minority groups or women encounter dual discrimination. This paper describes how women with disabilities who are in the workplace experience discrimination. In order to determine whether discrimination was a viable issue, theoretical contexts of feminist theory, disability theory, and attribution theory were examined as well as literature examining employment of women with disabilities. For this study, three women with various disabilities were interviewed regarding the effect of their disability on their typical workday, their employment and job seeking history, and employment opportunities. Qualitative data were also provided through mapping by the participants and pictorial data of worksites. Data were grouped into themes of pre-conceived notions of others, attitudes of others, accommodation issues, inclusion issues and exploitation issues. From these themes definitions of discrimination, nondiscrimination in the workplace were developed. Conclusions include the need for more research on workplace experiences of other or more specific populations that experience discrimination as well as the need for ethical reflection on the part of the researcher regarding vulnerable populations.     

关于物权基本法征求意见稿的建议

文章针对物权法征求意见稿中的诸多规定 ,参照美国的实践经验 ,对五个方面的问题展开论述 ,并提出了修改建议。首先 ,是有关建设用地使用权的问题 ;其次 ,对意见稿中有关最高额抵押权、抵押权所担保的债权数额和典权的规定进行了评述 ;再次 ,是有关建筑物区分所有权的论述 ;并探讨了共有关系的决议方式和共同共有关系的解除问题 ;最后 ,对役权的权利主体资格和创设问题进行了讨论     

Leading beyond the bottom line

Do physician executives approach managing and leading health care organizations like a CEO of a Fortune 100 company? Or does their training as physicians first give them a unique perspective, leading them to view organizational issues differently? The authors suggest that to be a physician executive is to be the practitioner, teacher, coach, and mentor for a new philosophy of leadership and management called Leading Beyond the Bottom Line. While the financial health of an organization is critical to its survival and its ability to fulfill its purpose, the trap is to focus on maximizing the bottom line. This new philosophy leads an organization to attend in equal measure to the (1) welfare of its patients, (2) its financial health, (3) the well-being of its employees, and (4) the building of its community. "The Optimal Organization" is one in which these four objectives are seen not only as related, but interconnected, and the goal is to maximize all of them. The legitimate role of the physician executive is to manage in search of Pareto Optimum, or the maximum benefit for all four organizational objectives. Clearly, this is a tougher job than maximizing profits or just optimizing profits and patient care.     

THE IMPACT OF INFORMATION AND RISK PERCEPTION ON THE HURRICANE EVACUATION DECISION-MAKING OF GREATER NEW ORLEANS RESIDENTS

This article contributes to the current discussion on how residents living in vulnerable areas make the decision to evacuate when they are in harms way. Key in this discussion is the question, what role does information and risk play in shaping evacuation behavior? This study used a sample of respondents from the greater New Orleans region (Orleans, Jefferson, and St. Bernard Parishes) of the Twelve Parish Survey (N = 1,207) conducted prior to Hurricane Katrina. The findings indicate that information sources are vitally important in the evacuation process. By examining the role of information from authorities, family, and friends; visual imagery; and the media we found that individuals use a variety of sources when they decide to evacuate. Further, the importance of visual imagery in the evacuation process is discussed. The article concludes with a discussion of the implications of information dissemination and its importance to members of the media and public policy makers.