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101.
Utilizing the stress process and life course perspectives, we investigated the influence of non-spousal social support on the associations between marital quality, physical disability, and loneliness among married older adults. Using data from the National Social Life, Health, and Aging Project (NSHAP), we found that the association between physical disability and loneliness was partially accounted for by the fact that physical disability was associated with less supportive nonmarital relationships. While physically-disabled older adults in higher-quality marriages were buffered from loneliness, supportive non-martial relationships did not offset elevated loneliness among those in low-quality marriages. These associations were largely similar for men and women. Thus, although both marital and nonmarital relationships are important for loneliness, when confronted with a stressor such as disablement it is the marital relationship alone that matters. 相似文献
102.
New, “big data” sources allow measurement of city characteristics and outcome variables at higher collection frequencies and more granular geographic scales than ever before. However, big data will not solve large urban social science questions on its own. Big urban data has the most value for the study of cities when it allows measurement of the previously opaque, or when it can be coupled with exogenous shocks to people or place. We describe a number of new urban data sources and illustrate how they can be used to improve the study and function of cities. We first show how Google Street View images can be used to predict income in New York City, suggesting that similar imagery data can be used to map wealth and poverty in previously unmeasured areas of the developing world. We then discuss how survey techniques can be improved to better measure willingness to pay for urban amenities. Finally, we explain how Internet data is being used to improve the quality of city services. (JEL R1, C8, C18) 相似文献
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105.
Pamela J. Gil 《Journal of Organizational Behavior Management》2013,33(1):56-70
Because of budgetary constraints, human service organizations frequently expect consultants to recommend methods to enhance staff performance that require little or no additional funding. The current study utilized a multiple baseline across settings design to evaluate and compare the effects of a single intervention and a packaged intervention including graphic feedback and goal setting on approximately 200 direct care staff as a group, to improve the data collection procedure at a residential treatment facility. The single intervention showed some improvement, whereas the packaged intervention yielded substantial improvements and was maintained. 相似文献
106.
An Empirical Approach to Sufficient Similarity: Combining Exposure Data and Mixtures Toxicology Data
Scott Marshall Chris Gennings Linda K. Teuschler LeAnna G. Stork Rogelio Tornero‐Velez Kevin M. Crofton Glenn E. Rice 《Risk analysis》2013,33(9):1582-1595
When assessing risks posed by environmental chemical mixtures, whole mixture approaches are preferred to component approaches. When toxicological data on whole mixtures as they occur in the environment are not available, Environmental Protection Agency guidance states that toxicity data from a mixture considered “sufficiently similar” to the environmental mixture can serve as a surrogate. We propose a novel method to examine whether mixtures are sufficiently similar, when exposure data and mixture toxicity study data from at least one representative mixture are available. We define sufficient similarity using equivalence testing methodology comparing the distance between benchmark dose estimates for mixtures in both data‐rich and data‐poor cases. We construct a “similar mixtures risk indicator”(SMRI) (analogous to the hazard index) on sufficiently similar mixtures linking exposure data with mixtures toxicology data. The methods are illustrated using pyrethroid mixtures occurrence data collected in child care centers (CCC) and dose‐response data examining acute neurobehavioral effects of pyrethroid mixtures in rats. Our method shows that the mixtures from 90% of the CCCs were sufficiently similar to the dose‐response study mixture. Using exposure estimates for a hypothetical child, the 95th percentile of the (weighted) SMRI for these sufficiently similar mixtures was 0.20 (i.e., where SMRI <1, less concern; >1, more concern). 相似文献
107.
As labour markets have become more complex there has been increasing interest among researchers in understanding the ways
that social and labour market processes and contexts impact on various labour market states. One important area has been in
understanding the differences between unemployment and hidden unemployment. This paper considers the ways in which these two
labour market states differ for a sample of male and female respondents to the Household Income and Labour Dynamics Australia
(HILDA) survey. It presents data related to the reasons why respondents in these two labour force states consider they are
jobless and analyses the characteristics of male and female respondents in the two labour market states to consider differences
in outcomes. The findings suggest that there are differences in the two states of labour market outcomes and that these are
further complicated when one considers processes for males and females. 相似文献
108.
Prior research found that lower sexual frequency and satisfaction were associated with higher rates of divorce, but little research had examined the role of sexual activity in the dissolution of cohabiting unions. We drew upon social exchange theory to hypothesize why sexual frequency is more important in cohabitation: (a) cohabitors' lower costs of finding sexual alternatives, (b) cohabitors' lower barriers to ending the relationship in the form of union‐specific economic and noneconomic capital, and (c) cohabitors' higher expectations for sexual activity. Using the National Survey of Families and Households (N = 5,902), we examined the relationship between sexual frequency and union dissolution. Results indicated that low sexual frequency was associated with significantly higher rates of union dissolution among cohabitors than married couples. 相似文献
109.
Felix Brandt Maria Chudnovsky Ilhee Kim Gaku Liu Sergey Norin Alex Scott Paul Seymour Stephan Thomassé 《Social Choice and Welfare》2013,40(3):739-743
In 1990, motivated by applications in the social sciences, Thomas Schwartz made a conjecture about tournaments which would have had numerous attractive consequences. In particular, it implied that there is no tournament with a partition A, B of its vertex set, such that every transitive subset of A is in the out-neighbour set of some vertex in B, and vice versa. But in fact there is such a tournament, as we show in this article, and so Schwartz’ conjecture is false. Our proof is non-constructive and uses the probabilistic method. 相似文献
110.
Wolf Scott 《Population studies》2013,67(1):78-85
Data on the fertility of teachers in grant earning schools in England and Wales were collected in 1955 as part of a general survey into the social characteristics of teachers. The survey was financed by the Nuffield Foundation with a contribution from the Population Investigation Committee. A subsequent article will discuss some possible determinants of fertility and in particular the interrelationship between social mobility and fertility. The present note describes changes in cohort fertility of teachers since 1915 and compares average family size with that of other sections of the population. The average number of children per married male teacher declined from 1.81 for the pre-1920 cohort to 1.47 for 1930–34. Segmental data after 1935 indicate a rise to approximately 2 children per family. Comparison with the Family Census suggests that the number of children of teachers is between 10% and 20% below that of all professions combined when the age at marriage of the wife is taken into account. 相似文献