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   1800篇
  免费   78篇
管理学   228篇
民族学   9篇
人口学   178篇
丛书文集   11篇
理论方法论   198篇
综合类   8篇
社会学   1029篇
统计学   217篇
  2023年   8篇
  2021年   12篇
  2020年   22篇
  2019年   51篇
  2018年   58篇
  2017年   78篇
  2016年   63篇
  2015年   39篇
  2014年   48篇
  2013年   315篇
  2012年   65篇
  2011年   71篇
  2010年   46篇
  2009年   49篇
  2008年   55篇
  2007年   50篇
  2006年   54篇
  2005年   38篇
  2004年   49篇
  2003年   43篇
  2002年   48篇
  2001年   41篇
  2000年   38篇
  1999年   35篇
  1998年   32篇
  1997年   32篇
  1996年   34篇
  1995年   21篇
  1994年   27篇
  1993年   22篇
  1992年   24篇
  1991年   30篇
  1990年   28篇
  1989年   17篇
  1988年   17篇
  1987年   12篇
  1986年   13篇
  1985年   27篇
  1984年   20篇
  1983年   16篇
  1982年   18篇
  1981年   8篇
  1980年   16篇
  1979年   12篇
  1978年   8篇
  1977年   11篇
  1976年   12篇
  1974年   8篇
  1970年   5篇
  1968年   5篇
排序方式: 共有1878条查询结果,搜索用时 602 毫秒
521.
With the emergence of ‘knowledge economies’ across the industrialised world, transitions from school to work have generally become more complex and uncertain. Nonetheless, such developments vary between countries, as young people form aspirations which align with their individual preferences, academic abilities and the economic, cultural and social capital to which they have access. Previous research emphasises the positive influence social capital received from parents and school networks has on young people's developing aspirations. Meanwhile, the social capital young people generate for themselves through ‘out-of-school’ activities is often construed as either irrelevant or problematic. In this paper, we examine the relationship between this latter dimension of social capital and the educational aspirations of young people in Australia (aged 14/15; n = 3586) and Germany (aged 14/15; n = 2517). Both countries have distinct institutional settings with varied school-to-work transition regimes. Our results show that youth-derived social capital, generated through participation in out-of school extra-curricular activities, mediates the association between parental background and educational aspirations in both countries. We suggest that, by exposing young people to broader sets of values, skills and resources not accessible within the family and the school context, such involvement may be important for promoting educational aspirations and attainment.  相似文献   
522.
We used age–period–cohort (APC) analyses to describe the simultaneous effects of age, period, and cohort on cancer incidence rates in an attempt to understand the population dynamics underlying their patterns among those aged 85+. Data from the Utah Cancer Registry (UCR), the US Census, the National Center for Health Statistics (NCHS), and the National Cancer Institute's Surveillance, Epidemiology and End Results (SEER) programme were used to generate age-specific estimates of cancer incidence at ages 65–99 from 1973 to 2002 for Utah. Our results showed increasing cancer incidence rates up to the 85–89 age group followed by declines at ages 90–99 when not confounded by the separate influences of period and cohort effects. We found significant period and cohort effects, suggesting the role of environmental mechanisms in cancer incidence trends between the ages of 85 and 100.  相似文献   
523.
524.
The classification of clients in terms of psychiatric diagnosis or level of functioning is a logical prerequisite to the conduct of quality of care assessments in mental health care. This article reports on efforts to create a typology of mentally ill group home residents based on a variety of measures of functioning. Subjects for the study come from a probability sample of 253 group home residents in Michigan. A three group typology, derived through cluster analytic procedures, is presented along with-evidence supporting its validity. Implications of the typology for program evaluators and service system planners are briefly addressed.  相似文献   
525.
This commentary is structured around two different definitions for the concept of relativism. The contention is that a great deal depends on the particular interpretation one gives to this concept — not only for understanding the particular positions elaborated in these papers, but also for a general understanding of the issue of justifying conclusions in evaluations.  相似文献   
526.
Contingent, non-standard or “casual” work is present in large numbers in virtually every sector of the United States economy. Staffing strategies that use subcontracted or contingent work – strategies that once characterized only some low-wage workers such as garment and agriculture – have now spread to virtually every area of industry, including high tech and finance. United States law is a patchwork of provisions in separate federal statutes – and sometimes in each of the 50 states – governing whether a particular individual is an “employee.” Day laborers in the United States have particular challenging enforcing their limited rights. To address the issues of vulnerable low-wage workers being locked out of labor protections, activists have developed a number of strategies, including litigation and legislative campaigns. These strategies have more recently been broadened to facilitate developing leadership in a new social movement. In this article I draw a portrait of the day labor workforce from city- and state-based surveys of day laborers themselves. I then discuss strategies employed by day laborers to advance their workplace rights.
Rebecca SmithEmail:
  相似文献   
527.
The inequities of the present system of rules in jai alai are documented on the basis of empirical information and theoretical results from a Monte Carlo simulation model. Some suggestions are made for changing the rules in order to make the game more equitable for both players and bettors. The simulation model is used to compare the effectiveness of the suggested rules with that of the present rules.  相似文献   
528.
529.
The relations of cumulative demographic risk and children's temperament to mothers' parenting behaviors were examined when children were 18 (T1, n = 247) and 30 (T2, n = 216) months of age. Mothers, nonparental caregivers (e.g., child care providers), and observers reported on children's temperament to create a temperament composite, and mothers reported on demographic risk variables. Maternal responsivity and control were observed during 2 mother–child interactions at both time points. Cumulative demographic risk was related to low maternal responsivity concurrently and longitudinally, even after controlling for earlier temperament and responsivity, and demographic risk was positively related to maternal control at T1 and T2. Regulated temperament (i.e., low frustration and high regulation) was linked with high maternal responsivity at T1 and T2 and low maternal control at T2. Moreover, the positive relation between cumulative risk and maternal control at T1 was stronger when children were viewed as less regulated.  相似文献   
530.
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