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   1641篇
  免费   75篇
管理学   220篇
民族学   11篇
人口学   134篇
丛书文集   10篇
理论方法论   220篇
综合类   15篇
社会学   855篇
统计学   251篇
  2023年   10篇
  2022年   10篇
  2021年   17篇
  2020年   56篇
  2019年   75篇
  2018年   82篇
  2017年   85篇
  2016年   62篇
  2015年   46篇
  2014年   78篇
  2013年   294篇
  2012年   61篇
  2011年   62篇
  2010年   68篇
  2009年   40篇
  2008年   46篇
  2007年   55篇
  2006年   55篇
  2005年   47篇
  2004年   43篇
  2003年   33篇
  2002年   44篇
  2001年   37篇
  2000年   24篇
  1999年   32篇
  1998年   20篇
  1997年   28篇
  1996年   16篇
  1995年   15篇
  1994年   14篇
  1993年   15篇
  1992年   9篇
  1991年   12篇
  1990年   9篇
  1989年   14篇
  1988年   8篇
  1987年   8篇
  1986年   5篇
  1985年   9篇
  1984年   9篇
  1983年   7篇
  1982年   3篇
  1981年   8篇
  1980年   8篇
  1979年   4篇
  1978年   7篇
  1977年   5篇
  1976年   6篇
  1975年   3篇
  1968年   3篇
排序方式: 共有1716条查询结果,搜索用时 15 毫秒
81.
ABSTRACT

Despite both scholarly and popular claims that citizen journalism (CJ) represents a growing democratizing force in the journalistic field, recent scholarship in the area has noted the decline of the organizational population of CJ. In this paper, we investigate how individual characteristics of sites and the dynamics of larger organizational population affect a CJ site’s risk of experiencing a mortality. Drawing on the largest sample to date of US-based English-language CJ sites, this study examines the risk of site mortality through an event history framework. Findings indicate that the strongest predictor of a site’s mortality is the age of the site, consistent with organizational population theory’s ‘liability of newness.’ We also find that for-profit and community-based sites have lower rates of site mortality, indicating that adopting legitimate conventions of journalism may serve as a protective buffer to site death. The results offer mixed evidence on whether CJ has become more professionalized via attrition.  相似文献   
82.
83.
84.
This study evaluated the effectiveness of the 2nd and 3rd editions of the Children First parent education programs for parents experiencing divorce or separation. Participants were 678 parents experiencing separation or divorce in 2 Midwestern counties. Changes from pretest to posttest on participants’ knowledge, attitudes, and likelihood of adaptive coparenting were assessed. Both editions of the program had a significant positive effect on all 3 measures of adaptive coparenting. The effect sizes from pretest to posttest for the 2nd edition were small, whereas the effect sizes for the 3rd edition of the program were nearly twice as large. Superiority of the 3rd edition might be due to an increased focus on explicit training on adaptive coparenting behaviors.  相似文献   
85.
With a growing number of people living in urban areas, city residents are more frequently exposed to stresses related to the built environment including elevated summer surface temperatures contributing to the urban heat island (UHI) effect. This study examines the role of urban tree density in moderating surface temperature variation in a densely populated city (Toronto, Canada). By applying parallel aspatial (OLS) and spatial regression (GWR) approaches with satellite derived data describing tree canopy density and surface temperature, one dimension of tree canopy quality (i.e., canopy density) is shown to contribute directly to a reduction in the surface urban heat island (SUHI) effect at a local scale. Though the model fit differed between the two regression approaches, both exhibited moderately strong explanatory power and demonstrated that observed surface temperature decreases in locations with increasing high-density and closed tree canopy. Study findings provide an empirical basis to recommend that municipal urban forest strategies embrace canopy quality metrics, such as increasing the density of existing urban forest stands, as a part of tree planting objectives seeking to effectively deliver temperature moderation as a valuable ecosystem service.  相似文献   
86.
The role of urban expansion on bee diversity is poorly understood, but it may play an important role in restructuring pollinator diversity observed in rural regions at the urban perimeter. We studied bee communities in two habitats essential for pollinators (residential gardens and semi-natural areas) at 42 sites situated at the edge of greater Montreal, Canada. Bee species richness, abundance and functional diversity all increased with urbanization in both habitat types, but gardens and semi-natural areas supported distinct bee communities with unique responses to urbanization in terms of species turnover. Compared to semi-natural sites, residential gardens supported bees that foraged from a greater number but a lower proportion of available plant species. Bees did not discriminate between exotic and indigenous plant species in either gardens or semi-natural sites and were attracted to flowers in either habitat irrespective of their origins. Protecting semi-natural ruderal areas and providing residential garden habitats for pollinators are both effective means of promoting regional bee diversity in urbanizing regions.  相似文献   
87.
In recent years sport-based interventions have been implemented as a mechanism via which to target marginalised youth in relation to the development of social inclusion. Much of the political rhetoric surrounding social inclusion programmes highlights engagement with education, employment, or training, as key metrics. This has led some scholars to observe that conceptualising social inclusion in this way can act to further marginalise young people who fail to engage with these metrics. In contrast, this paper seeks to employ an alternative understanding of social inclusion, which uses the concepts of recognition and acceptance, to infer how participation in sports-based programmes may enable marginalised youth to meet mainstream societal expectations and aid with social assimilation. Drawing upon findings from two small-scale studies of sport-based interventions located in three UK cities, this paper places participant accounts at the centre of the analysis to explore broader notions of pro-social development in relation to recognition and interpersonal acceptance. The paper concludes by suggesting that within contexts in which young people are able to generate strong interpersonal relationships with key personnel (such as coaches), and which are built upon trust, recognition and developing self-worth, there is clear potential for sport-based programmes to incubate social assimilation.  相似文献   
88.
Global union federations (GUFs) and multinational enterprises (MNEs) have been concluding “international framework agreements” (IFAs) to protect their interests amidst the globalizing economic landscape. By modelling the underlying bargaining processes, the authors show that IFAs can be expected when both sides exhibit risk aversion, although the agreement will favour the less risk‐averse side. Since globalization has created fewer vulnerabilities for MNEs than for GUFs, IFAs have so far typically delivered only minimal benefits for labour. But this should change in the future if strengthened transnational union capacities and abilities to threaten MNEs with reputational costs bring greater equalization of attitudes towards risk.  相似文献   
89.
Although a growing body of research focuses on Americans’ attitudes toward same-sex couples as parents, very few include measures of religion, and those that do fail to capture its multidimensional nature. Furthermore, many past studies relied on convenience samples of college students, or samples gathered outside the United States. Multivariate analyses of the 2012 General Social Survey—a nationally representative sample of adults in the United States—reveal that a slim majority of Americans still do not believe same-sex couples can parent as well as male-female couples, and the religious beliefs, behaviors, and affiliations of Americans are significantly and at times differentially associated with appraisals of same-sex couples’ parenting abilities. It appears that although religion is generally associated with more negative appraisals of the parenting abilities of same-sex couples, it is not uniformly so. Americans’ immediate religious and cultural context can shape their appraisals of homosexuality in diverse ways.  相似文献   
90.
The current study assesses ageism and heterosexism relating to older adult sexual activity within long-term care facilities. To assess caregiver reactions, 153 residential care facility staff members read one of three vignettes. Each vignette described a scenario in which a staff member walks in on two residents (male/female, male/male, or female/female) engaging in sexual activity. Although no main effects were discovered for vignette type, exploratory analyses revealed that the facility where participants were employed was significantly related to their ratings of approval. Furthermore, an interaction effect between vignette and facility types was also discovered for caregivers’ approval of sexual activity among residents. Additionally, a strong overall approval rating of older adult sexuality was reported by staff members. The results of this study warrant that further research is necessary regarding older adults’ perception of caregiver bias, as well as further investigation of caregivers’ perceptions of older adults’ sexual activity.  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