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51.
Nicholas G. Petryszak 《The Sociological quarterly》1981,22(1):137-138
52.
The health, well-being and productivity of workers and employers in today's society is becoming increasingly important. The social, emotional and economic costs of injury and illness are such that governments throughout the world are attempting to implement policies and practices to contain these costs. One response in this area is Disability Management (DM). DM focuses on the management of employees with work injuries or illnesses in the workplace rather than offsite in rehabilitation centres. Regional interest in the DM approach has now gained momentum in North America, Europe and the Asia-Pacific. This article briefly reviews two studies that were conducted in Australia and Canada (results have or are being published elsewhere). Although the two studies were not designed for comparison purposes they provide interesting and useful information about the similarities and differences in the practice of DM in Australia and Canada. Findings are compared in terms of five primary principles of DM and it is argued that it is important to understand the ecological contexts in which DM occurs as well as share trans-national research in this area to help inform policy and practice. 相似文献
53.
Integrins are cell surface receptors that mediate adhesion to the extracellular matrix. In this Perspective, we focus on the recent finding that a decrease in the levels of integrins yields fruit flies that retain youthful mobility as they age and display an increased mean life span. We discuss how the reduction of integrin activity might lead to the observed changes. 相似文献
54.
Warren N 《Work (Reading, Mass.)》2001,17(3):221-234
The intense battles preceding the recent promulgation of OSHA's Ergonomics Program Standard serve as a case study demonstrating the growing understanding that MSD causation, development, and exacerbation are the result of the combined contribution of (and possibly interaction between) a wide range of biomechanical and psychosocial stressors. The best designed studies, those that adequately measure both biomechanical and psychosocial exposures, strongly support this hypothesis. Work stress is one of the results of this stressor combination and is part of the physiological pathway to MSDs and a wide range of other occupational diseases. Prevention efforts geared to a single or single class of exposure may be only partly effective, ineffective, or even counter productive. The most effective control strategies are rooted in on-going, participatory ergonomics programs, incorporating a joint labor/management ergonomic team; this blueprint for intervention necessarily addresses the roots of both physical and psychosocial work stress experienced by workers. 相似文献
55.
Nicholas G.Carr 《经理人》2007,(3):80-80,82
安德烈和爱德华当初是怎么想的?
1900年,就在两兄弟刚刚接管家族设在克莱蒙一费朗市橡胶生意之后不久,他们决定为旅行者出版一本指导手册。在他们的《米其林指南》一书当中,作者提供了大量加油站、酒店、餐厅和观光景点的信息,并配有详尽的地图和旅行提示。该书第一版印刷了35000册,米其林公司免费将其发放给那些感兴趣的读者们。他们的这一做法后来被证明是一个极其天才的举动。 相似文献
56.
Social Amplification of Wildfire Risk: The Role of Social Interactions and Information Sources 总被引:2,自引:0,他引:2
Hannah Brenkert‐Smith Katherine L. Dickinson Patricia A. Champ Nicholas Flores 《Risk analysis》2013,33(5):800-817
Wildfire is a persistent and growing threat across much of the western United States. Understanding how people living in fire‐prone areas perceive this threat is essential to the design of effective risk management policies. Drawing on the social amplification of risk framework, we develop a conceptual model of wildfire risk perceptions that incorporates the social processes that likely shape how individuals in fire‐prone areas come to understand this risk, highlighting the role of information sources and social interactions. We classify information sources as expert or nonexpert, and group social interactions according to two dimensions: formal versus informal, and generic versus fire‐specific. Using survey data from two Colorado counties, we empirically examine how information sources and social interactions relate to the perceived probability and perceived consequences of a wildfire. Our results suggest that social amplification processes play a role in shaping how individuals in this area perceive wildfire risk. A key finding is that both “vertical” (i.e., expert information sources and formal social interactions) and “horizontal” (i.e., nonexpert information and informal interactions) interactions are associated with perceived risk of experiencing a wildfire. We also find evidence of perceived “risk interdependency”—that is, homeowners’ perceptions of risk are higher when vegetation on neighboring properties is perceived to be dense. Incorporating social amplification processes into community‐based wildfire education programs and evaluating these programs’ effectiveness constitutes an area for future inquiry. 相似文献
57.
58.
Loddon Mallee Integrated Cancer Service plays a key role in planning the delivery of cancer services in the Loddon Mallee Region of Victoria, Australia. Forecasting the incidence of cancer is an important part of planning for these services. This article is written from an industry perspective. We describe the context of our work, review the literature on forecasting the incidence of cancer, discuss contemporary approaches, describe our experience with forecasting models, and list issues associated with applying these models. An extensive bibliography illustrates the world-wide interest in this forecasting problem. We hope that it is useful to researchers. 相似文献
59.
We study the effects of the inclusion of pairs of correlated observations in a sample on likelihood ratio tests for the difference in two means. In particular, we assess how the inclusion of correlated data pairs (e.g., such as data inadvertently collected from sib-pairs) affects the sample size requirements necessary for the implementation of a Likelihood Ratio (LR) test for the difference between two means. Our results suggest that correlated data pairs beneficially or adversely effect sample size requirements for an LR test to a degree functionally related to the mixture parameters dictating their relative frequencies in the larger sample on which the test will be performed, the strength of the correlation between the observations, and the size of imbalances in the sample with respect to the number of observations in each group. The relevance and implications of the results for genetic and epidemiologic research are discussed. 相似文献
60.
ON BOOTSTRAP HYPOTHESIS TESTING 总被引:2,自引:0,他引:2
We describe methods for constructing bootstrap hypothesis tests, illustrating our approach using analysis of variance. The importance of pivotalness is discussed. Pivotal statistics usually result in improved accuracy of level. We note that hypothesis tests and confidence intervals call for different methods of resampling, so as to ensure that accurate critical point estimates are obtained in the former case even when data fail to comply with the null hypothesis. Our main points are illustrated by a simulation study and application to three real data sets. 相似文献