首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   317篇
  免费   19篇
管理学   60篇
民族学   3篇
人口学   26篇
丛书文集   1篇
理论方法论   28篇
综合类   14篇
社会学   165篇
统计学   39篇
  2023年   1篇
  2022年   1篇
  2021年   1篇
  2020年   7篇
  2019年   8篇
  2018年   11篇
  2017年   20篇
  2016年   13篇
  2015年   11篇
  2014年   9篇
  2013年   59篇
  2012年   9篇
  2011年   15篇
  2010年   6篇
  2009年   11篇
  2008年   10篇
  2007年   12篇
  2006年   13篇
  2005年   19篇
  2004年   8篇
  2003年   5篇
  2002年   5篇
  2001年   8篇
  2000年   6篇
  1999年   9篇
  1998年   4篇
  1997年   7篇
  1996年   4篇
  1995年   6篇
  1994年   8篇
  1993年   4篇
  1992年   2篇
  1991年   1篇
  1990年   1篇
  1989年   1篇
  1988年   3篇
  1987年   3篇
  1985年   1篇
  1984年   2篇
  1983年   1篇
  1981年   2篇
  1980年   2篇
  1979年   1篇
  1978年   2篇
  1977年   1篇
  1976年   2篇
  1974年   1篇
排序方式: 共有336条查询结果,搜索用时 46 毫秒
331.
This study investigated attrition in a 6-month physical activity intervention for older adults. The program was based on the social-cognitive theory incorporating self-efficacy factors. Two hundred forty-eight insufficiently active 65- to 74-year-olds were recruited from the Australian federal electoral roll. The intervention comprised walking and strength and flexibility exercises and was conducted in 30 local neighborhoods where the participants resided. Characteristics of individuals lost to attrition (n = 86, 35%) were compared with those of program completers (n = 162, 65%). Logistic-regression analysis showed that those lost to attrition came from areas of lower socioeconomic status, were overweight and less physically active, and had lower walking self-efficacy scores and higher loneliness scores. The results suggest that early assessment of these characteristics should be undertaken to identify individuals at risk of attrition, to improve retention, and to avoid potential bias.  相似文献   
332.
Since the 1960 Census, Demographic Analysis (DA) has been used by the Census Bureau to evaluate the coverage of the population. Administrative statistics on births, deaths, immigration and Medicare enrollments as well as estimates of legal emigration and net undocumented immigration are used to produce demographic analysis estimates of the population for the census date. These estimates are compared to the Census 2000 data to evaluate coverage in the census. The results are also compared to measures of undercount obtained from dual system estimation. The DA measures substantial reduction in net undercount in Census 2000 compared to 1990. The reductions occur among all demographic categories: all broad age groups, males and females, Blacks and Non-Blacks.  相似文献   
333.
A central theme of Beck's argument in The Brave New World of Work (2000) is that labour markets in the developed world are taking on some of the core characteristics that have been associated with less developed labour markets such as employment insecurity, informality and precarity. A process he refers to as Brazilianisation. In this paper we consider whether Beck's thesis can help us understand changes in youth transitions in Australia and the UK by developing a comparative analysis of processes of casualisation in the youth labour markets of the two countries. We assess the extent to which precarious labour market biographies have become entrenched and represent modern forms of engagement with the labour market. While evidence is presented to suggest that young people's labour market experiences have been affected by a trend towards greater casualisation, we argue that the changes are having the greatest impact on those in the weakest positions: in both countries women are more likely to be affected than men and casualisation is most evident in the lowest skilled occupations.  相似文献   
334.
This study explored relationships among young adults’ wealth and entrepreneurial activities with emphasis on how these relationships differed among racial and ethnic groups. Using data from the 1997 National Longitudinal Survey of Youth, results indicated that young adults’ (N = 8984) higher accumulated amounts of wealth were associated with pursuing self-employment at higher rates; however, differences emerged when the associations were explored with various types of wealth and within racial and ethnic groups. Black young adults’ greater debt and net worth were associated with their increased likelihoods of self-employment. Among Latino/a young adults, greater liquid assets and net worth were associated with increased likelihoods of self-employment. Wealth was unrelated to white young adults’ self-employment. Wealth appeared to play an outsized role in the self-employment of black and Latino/a young adults compared to that of their white counterparts. In other words, racial and ethnic minority young adults may have a heavier burden for generating their own capital to embark on entrepreneurial activities when mainstream credit markets are unresponsive or inaccessible. Policy implications are discussed.  相似文献   
335.
May  Julian  Norton  Andy 《Social indicators research》1997,41(1-3):95-118
The purpose of this article is to provide a fuller and more integrated understanding of poverty based on the results of a nation wide participatory study recently completed in South Africa. A surprisingly consistent view of poverty emerges from the study which includes social isolation, malnourished children, crowded homes, the use of basic energy sources, no employment, and fragmented households. A clear image of what results from extreme poverty also emerges comprising continuous ill health, arduous and often hazardous work for virtually no income, no power to influence change, and high levels of anxiety and stress. The article concludes that conventional definitions of poverty do not fully describe the experience of poverty as analysed by the poor themselves. Instead, the multidimensional nature of poverty suggests that three basic concepts would be useful in any analysis of extent, nature and persistence of poverty. These are sufficiency, access and vulnerability.  相似文献   
336.
Learning to walk expands infants’ access to the physical environment and prompts changes in their communicative behaviors. However, little is known about whether walking also shapes infants’ proximity to their adult social partners during everyday activities at home. Here we followed 89 infants (42 boys, 47 girls; 92% White, not Hispanic or Latino) longitudinally and documented connections between infant locomotion and infant-adult proximity on two timescales: (1) across developmental time, by comparing data from a session when infants could only crawl to a later session when they could walk (M walk onset = 12.15 months, range = 8-15); and (2) in real time, by testing whether the amount of time that infants spent in motion (regardless of their locomotor status) related to their interpersonal distance to adults. The developmental transition to walking corresponded to a significant, but modest, decrease in infant-adult proximity. Infants’ moment-to-moment locomotion, however, was strongly related to patterns of interpersonal distance: infants who spent more time in motion spent less time near adults and instigated more proximity transitions, resulting in shorter and more dispersed bouts of proximity throughout sessions. Findings shed new light on how infants’ motor achievements can reverberate across other domains of development, and how changes in infant development that researchers often observe over months arise from infants’ moment-to-moment experiences.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号