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   4949篇
  免费   124篇
  国内免费   20篇
管理学   733篇
民族学   25篇
人口学   660篇
丛书文集   29篇
理论方法论   428篇
综合类   215篇
社会学   1985篇
统计学   1018篇
  2023年   23篇
  2022年   16篇
  2021年   23篇
  2020年   70篇
  2019年   95篇
  2018年   154篇
  2017年   191篇
  2016年   176篇
  2015年   111篇
  2014年   112篇
  2013年   664篇
  2012年   314篇
  2011年   234篇
  2010年   113篇
  2009年   80篇
  2008年   105篇
  2007年   93篇
  2006年   84篇
  2005年   611篇
  2004年   329篇
  2003年   175篇
  2002年   90篇
  2001年   140篇
  2000年   90篇
  1999年   49篇
  1998年   49篇
  1997年   42篇
  1996年   33篇
  1995年   36篇
  1994年   41篇
  1993年   35篇
  1992年   50篇
  1991年   55篇
  1990年   35篇
  1989年   36篇
  1988年   44篇
  1987年   19篇
  1986年   27篇
  1985年   41篇
  1984年   32篇
  1983年   40篇
  1982年   27篇
  1981年   24篇
  1980年   23篇
  1979年   25篇
  1978年   41篇
  1977年   21篇
  1976年   27篇
  1975年   27篇
  1968年   15篇
排序方式: 共有5093条查询结果,搜索用时 937 毫秒
411.
Broad and inter-disciplinary inquiry into disability is at a nascent stage in Sri Lanka. This paper looks at the intersectionality of disability and gender in the specific contexts of ‘the rural’ and the armed conflict-affected areas of the country, particularly the interaction with the law. In-depth interviews and focus group discussions were conducted among rural women with disabilities in the North Central and Eastern provinces, including women who acquired disabilities resulting from the internal conflict. Legal literacy, administrative discretion in disability-related welfare programmes, and transitional justice and reconciliation emerged as the most prominent themes in the interviews. We analyse these issues using a rights framework in an attempt to highlight some of the vulnerabilities of women with disability in the rural and war-affected contexts. The paper also reflects on a few instances where those vulnerabilities have been overcome through collective action.  相似文献   
412.
Much attention has recently been focused on the bankruptcy of the City of Detroit in 2013 and the reasons for the largest municipal fiscal melt down in US history. Contrary to a view gaining currency, which dismisses Detroit as the product of exceptional forces and largely calls it the architect of its own collapse, this article argues the case that Detroit conveys more general lessons for European cities struggling with decline, not least of which is the need for interventionist regional planning to avoid predictable but avoidable urban distress. The article briefly reviews the well-documented decline of the city of Detroit measured against population, economic, fiscal and image impacts. It considers five current misreadings of the reasons for Detroit's predicament and implicit signposts for European practice before concluding with an assessment of what has been hailed as the shoots of yet another possible renaissance in the originally proclaimed Renaissance City over 40 years ago.  相似文献   
413.
This paper presents results from the study of gambling behaviors in a representative sample of Cypriot high-school students. The aim of the study was to ascertain epidemiology of adolescent online gambling in Cyprus and possible correlates. The sample consisted of 2,684 students (48.5 % boys, 51.5 % girls) from the first grades of junior (Gymnasium) and senior (Lyceum) high school. Our results indicate that gamblers presented with lower school achievement and related expectations while scoring consistently higher on measures of Internet addiction, parental bonding and psychopathology. Discriminant analysis revealed two profiles which explained the most variance in gambling behavior; the first profile that corresponded to more explained variance was the student with higher psychopathology, less prosocial behavior, higher Internet addiction score with higher frequencies of online activities and moderate levels of truancy and lower expectation of school achievement. The second profile was that of a student who reported less psychopathology, more prosocial behavior, less involvement with the Internet in general but skipped classes more and his prospects on finishing high school were even slimmer. These results will be utilized in the design of a comprehensive prevention program in an effort to combat online addictive behaviors.  相似文献   
414.
The proliferation of gambling opportunities in Canada, coupled with an aging population, has led to an increased prevalence of gambling among older adults. Encouraged by this trend, gambling industries have modified their activities to attract and market to this group. Yet, older adults are not a homogeneous group. The life experiences, values, and attitudes shared by generations make a cohort-specific analysis of gambling among older adults a worthwhile pursuit. Drawing from the Dualistic Model of Passion (Vallerand et al. in J Pers Soc Psychol 85(4):756–767, 2003), we discuss the role of passion in shaping gambling behaviours, and the implications of a harmonious or obsessive passion on the benefits and risks to two distinct generations of older adults. Based on their generational attributes, we posit that members of the Silent Generation (those born between 1925 and 1942) stand to gain more from the benefits of recreational gambling, but also stand lose more from problem gambling, than their children’s generation, the Baby Boomers (those born between 1942 and 1964). Preventative strategies to assist problem gambling seniors, along with recommendations for further research, are discussed.  相似文献   
415.
The number of subjects in a pharmacokinetic two‐period two‐treatment crossover bioequivalence study is typically small, most often less than 60. The most common approach to testing for bioequivalence is the two one‐sided tests procedure. No explicit mathematical formula for the power function in the context of the two one‐sided tests procedure exists in the statistical literature, although the exact power based on Owen's special case of bivariate noncentral t‐distribution has been tabulated and graphed. Several approximations have previously been published for the probability of rejection in the two one‐sided tests procedure for crossover bioequivalence studies. These approximations and associated sample size formulas are reviewed in this article and compared for various parameter combinations with exact power formulas derived here, which are computed analytically as univariate integrals and which have been validated by Monte Carlo simulations. The exact formulas for power and sample size are shown to improve markedly in realistic parameter settings over the previous approximations. Copyright © 2014 John Wiley & Sons, Ltd.  相似文献   
416.
This article reflects the views of the authors and should not be construed to be those of the US Food and Drug Administration. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
417.
418.
We studied young adolescents' seeking out support to understand conflict with their co‐resident fathers/stepfathers, and the cognitive and affective implications of such support‐seeking, phenomena we call guided cognitive reframing. Our sample included 392 adolescents (Mage = 12.5, 52.3% female) who were either of Mexican or European ancestry and lived with their biological mothers and either a stepfather or a biological father. More frequent reframing was associated with more adaptive cognitive explanations for father/stepfather behavior. Cognitions explained the link between seeking out and feelings about the father/stepfather and self. Feelings about the self were more strongly linked to depressive symptoms than cognitions. We discuss the implications for future research on social support, coping, guided cognitive reframing, and father–child relationships.  相似文献   
419.
Urban plant biodiversity is influenced by both the physical environment and attitudes and preferences of urban residents for specific plant types. Urban residents are assumed to be disconnected from their immediate environment, and cultural and societal factors have been emphasized over environmental factors in studies of landscaping choices. However, we postulate that local climatic and environmental factors can also affect preferences for plant attributes. Therefore, spatial and temporal patterns in urban tree biodiversity may be driven not only by the direct effect of environmental variables on plant function, but also by the effect of environmental variables on attitudes toward trees and associated choices about which types of trees to plant. Here, we tested the relative effects of socio-economic and local environmental factors on preferences toward tree attributes in five counties in southern California in and surrounding Los Angeles, based on 1,029 household surveys. We found that local environmental factors have as strong an effect on preferences for tree attributes as socio-economic factors. Specifically, people located in hotter climates (average maximum temperature 25.1 °C) were more likely to value shade trees than those located in cooler regions (23.1 °C). Additionally, people located in desert areas were less likely to consider trees to be important in their city compared with people located in naturally forested areas. Overall, our research demonstrates the inherent connections between local environmental factors and perceptions of nature, even in large modern cities. Accounting for these factors can contribute to the growing interest in understanding patterns of urban biodiversity.  相似文献   
420.
The possibilities that are available to youth in contemporary Western societies are highly sophisticated and related mostly to the transition between secondary school and higher education, the first job placement, independent housing, lifestyle construction and the consumption of goods produced by cultural industries in a globalist world. Secondary education represents a main factor in terms of socialisation, training, access to employment, citizenship and youth identity construction, making it a key for public policies aimed at youth in Latin America. The article presents the initial results of a research project on transition processes from secondary school to employment in Argentina. The findings are based on statistical information and the empirical analysis of data gathered in two very different economic and social contexts: the first was one of the worst social and economic crisis in the country's history (1999–2003), and the second was a long period of economic growth and increased social welfare (2004–2012). The data are presented in response to the following question: How do different economic contexts influence the transitions of youth in different social class contexts? By answering this question, the significant role of public policies in generating better living conditions for youth becomes clear.  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