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81.
The assessment of the impact that socioeconomic determinants have on the prevalence of certain chronic conditions reported by respondents in population surveys must confront two problems. First, the self-reports could be in error (false positives and false negatives). Second, those reporting are a selected sample of those who ever experience the problem, and this selection is heavily influenced by excess mortality attributable to the condition being reported. In this article, we use a combination of empirical data and microsimulation to (a) assess the magnitude of the bias attributable to the selection problem, and (b) suggest an adjustment procedure that corrects for this bias. We find that the proposed adjustment procedure considerably reduces the bias arising from differential mortality.  相似文献   
82.
Although a large literature analyzes the determinants of child mortality and suggests policy and medical interventions aimed at its reduction, there is little existing analysis illuminating the consequences of child mortality for other family members. In particular, there is little evidence exploring the consequences of experiencing the death of a sibling on one’s own development and transition to adulthood. This article examines the prevalence and consequences of experiencing a sibling death during one’s childhood using two U.S. data sets. We show that even in a rich developed country, these experiences are quite common, affecting between 5 % and 8 % of the children with one or more siblings in our two data sets. We then show that these experiences are associated with important reductions in years of schooling as well as a broad range of adult socioeconomic outcomes. Our findings also suggest that sisters are far more affected than brothers and that the cause of death is an important factor in sibling effects. Overall, our findings point to important previously unexamined consequences of child mortality, adding to the societal costs associated with childhood mortality as well as suggesting additional benefits from policy and medical innovations aimed at curbing both such deaths and subsequent effects on family members.  相似文献   
83.
The U.S. Census Bureau has a long tradition of evaluating the results of its censuses. This paper presents evaluation results from the 2010 Census, comparing them to earlier results. The paper discusses net coverage at the national and state level, as well as by age, sex, race, and ethnic group. It discusses components of error, including estimated number missed and counted in error. It also presents data on whole-person and item imputation.  相似文献   
84.
Bourdieu’s theory of cultural and social reproduction—with its core concepts cultural capital, habitus, practice and field—is a leading account of the intergenerational persistence of educational inequality. Although numerous studies examine the relationship between class, cultural capital and academic outcomes, and some focus on gender differences in cultural capital, few attempt to operationalize Bourdieu’s accompanying concepts of habitus and practice, and to consider gender differences along these dimensions. The present study addresses these gaps by examining a “structure-disposition-practice” model of the relationships between family socioeconomic status (SES), sex, habitus, academic practices, and academic achievement using multilevel Canadian data. Findings of SES and gender differences in the model offer qualified support for the potential of Bourdieu’s framework to help increase our understanding of class and gender disparities in educational outcomes. Results suggest that habitus, practice and the “structure-disposition-practice” model are not only theoretically sophisticated, but also empirically sustainable and that future efforts to more precisely measure the model’s concepts and relationships are warranted.  相似文献   
85.
86.
The size and complexity of research teams continues to grow, especially within the realms of science and engineering. This has intensified already existing concerns about relying on traditional authorship schemes as the way to allocate credit for a contribution to a research project. In this paper, we examine current authorship problems plaguing research communities and provide suggestions for how those problems could potentially be mitigated. We recommend that research communities, especially those involved in large scale collaborations, revisit the contributor model and embrace it as means for allocating credit more authentically and transparently.  相似文献   
87.
The implications of the institutional review board (IRB) system's growing purview are examined. Among the issues discussed are whether IRBs are censoring research and whether the IRB review process fundamentally alters the research that is being conducted. The intersection between IRB review and free speech is also explored. In general, it is argued that the review system for human subjects research (HSR) should be modified in order to limit the scope of IRB review.  相似文献   
88.
The South Carolina coastal zone is among the fastest growing areas in the U.S., and population epicenters are marked by dense brackish water pond (lagoon) coverage associated with housing complexes and golf courses. Surveillance efforts in 2001–2002 documented the widespread occurrence of several types of potentially or measurably toxic harmful algal blooms (HABs) in these ponds. These man-made retention ponds were constructed in order to serve as a buffer between developed areas and open estuaries or for aesthetic reasons. However, the combination of restricted tidal flow and nutrient and/or contaminant deposition creates a stimulatory environment for potential HAB formation. These discoveries introduce the need to consider mitigation measures to existing ponds and HAB preventive strategies for future pond construction.  相似文献   
89.
This article investigates whether and the extent to which “white flight” from Hispanic and Limited English Proficient (LEP) students has been occurring in California’s public schools and further, examines the level (school or district) on which “white flight” may operate. Using school-level administrative data from the California Department of Education from 1990 to 2000, we estimate exponential growth rate models of white enrollment with school-level fixed effects. The results shed light on the implications of immigration for school segregation in the United States. The analysis indicates that white enrollment declined in response to increases in the number of Spanish-speaking LEP and Hispanic students, and that “white flight” from LEP or Hispanic students occurred more at the district than the school level in the case of primary schools, and at the school level for secondary schools. In addition, schools with higher percentages of Spanish LEP students in the school than the district, and with higher percentages in the district relative to the county, experienced greater losses in white enrollments than other schools, thus suggesting that higher levels of segregation in the wider metropolitan area accelerate white flight.  相似文献   
90.
The central aims of this paper are: (1) to explore the utility of using personal correspondence as a source of data for sociological investigations into the history of sociology in the UK; (2) in relation to this undertaking, to advance the beginnings of a figurational analysis of epistolary forms; and (3), to provide an empirically-grounded discussion of the historical significance of the Department of Sociology at the University of Leicester (a University largely ignored in 'standard histories' of the subject) at a formative phase in the development of the discipline within the UK. The correspondence drawn upon in the paper is between Norbert Elias and Ilya Neustadt between 1962 and 1964 when Elias was Professor of Sociology at the University of Ghana and Ilya Neustadt was Professor of Sociology and Head of the Sociology Department at the University of Leicester. From an analysis of this correspondence, we elucidate an emergent dynamic to the relationship between Neustadt and Elias, one which, we argue, undergirds the development of sociology at Leicester and the distinctive character of the intellectual climate that prevailed there during the 1960s. The paper concludes with a consideration of whether it was a collapse of this dynamic that led to a total breakdown in the relationship between Neustadt and Elias, and by extension, an important phase in the expansion of sociology at Leicester.  相似文献   
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