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   6305篇
  免费   234篇
  国内免费   3篇
管理学   990篇
民族学   54篇
人才学   9篇
人口学   500篇
丛书文集   47篇
理论方法论   783篇
综合类   52篇
社会学   3307篇
统计学   800篇
  2023年   38篇
  2022年   28篇
  2021年   46篇
  2020年   114篇
  2019年   167篇
  2018年   195篇
  2017年   199篇
  2016年   206篇
  2015年   143篇
  2014年   164篇
  2013年   1006篇
  2012年   225篇
  2011年   246篇
  2010年   190篇
  2009年   157篇
  2008年   195篇
  2007年   219篇
  2006年   199篇
  2005年   223篇
  2004年   195篇
  2003年   171篇
  2002年   171篇
  2001年   116篇
  2000年   151篇
  1999年   122篇
  1998年   110篇
  1997年   103篇
  1996年   96篇
  1995年   85篇
  1994年   109篇
  1993年   90篇
  1992年   96篇
  1991年   64篇
  1990年   56篇
  1989年   56篇
  1988年   68篇
  1987年   52篇
  1986年   49篇
  1985年   57篇
  1984年   67篇
  1983年   54篇
  1982年   58篇
  1981年   50篇
  1980年   51篇
  1979年   44篇
  1978年   32篇
  1977年   31篇
  1976年   46篇
  1975年   26篇
  1974年   35篇
排序方式: 共有6542条查询结果,搜索用时 31 毫秒
961.
962.
963.
964.
Early maternal resolution with preterm birth was assessed at one month corrected age (CA), and potential maternal and infant characteristics that may be associated with early resolution were examined. Fifty‐five mothers of preterm infants (≤34 weeks) participated. Data regarding pregnancy, prenatal risk, delivery, infant's medical risk, maternal well‐being status, and infant's early developmental status were collected. Resolution was examined using the Reaction to Diagnosis Interview (RDI). A total of 38.2% of the mothers were classified as resolved. Only completion of antenatal corticosteroids (ACS) treatment and high prenatal risk significantly predicted maternal resolution. Early maternal resolution of preterm birth is associated with early knowledge regarding the preterm birth.  相似文献   
965.
Increasing demand for social work placements in a climate of decreasing availability has intensified the search for capacity-building models of field education. Rotation placements may be part of the solution, yet little is currently known about how rotations affect the experience of field education in the context of block placements. A study of 128 Master of Social Work (MSW) students and 92 supervisors provided insights into the experience of rotation placements in five Australian hospitals. The study adopted a mixed-methods design using online surveys followed by postplacement interviews over 3 years. The findings show that experiences were mixed. However, there were also some common themes that help inform what might work, for whom, and under what circumstances.  相似文献   
966.
967.
Name-altering practices are common in many creative fields—pen names in literature, stage names in the performing arts, and aliases in music. More than just reflecting artistic habits or responding to the need for distinctive brands, these practices can also serve as test devices to probe, validate, and guide the artists’ active participation in a cultural movement. At the same time, they constitute a powerful probe to negotiate the boundaries of a subculture, especially when its features are threatened by appropriation from the mass-oriented culture. Drawing evidence from electronic music, a field where name-altering practices proliferate, we outline dynamics of pseudonymity, polyonymy, and anonymity that surround the use of aliases. We argue that name-altering practices are both a tool that artists use to probe the creative environment and a device to recursively put one’s creative participation to the test. In the context of creative subcultures, name-altering practices constitute a subtle but effective form of underground testing.  相似文献   
968.
ABSTRACT

The objective of this study is to identify the factors that contribute to the successful or unsuccessful integration of the Chinese diaspora in France. There is already a significant amount of literature that probes into the immigrant experiences of various other groups in France. However, the Chinese diaspora in France has remained insufficiently studied. This study aims to address this gap. The main findings of this study are that 1) unsurprisingly, the older the age of arrival, the less well integrated immigrants are in French society, 2) somewhat surprisingly, the less well integrated an immigrant is, the more likely he or she is going to believe that France is a tolerant and open-minded country, and 3) counterintuitively, the more deeply a member of the Chinese diaspora is immersed in French society, the more likely he or she is going to believe that France is hostile to people of Asian heritage.  相似文献   
969.
Applied researchers have been drawn to models that attribute the demonstrated cross‐country differences in intergenerational income transmission to government failures to invest in the human capital of poor children. To highlight another potential mechanism, the disincentive effects of labor market taxation and redistribution, we present a simple model that can explain cross‐country differences in intergenerational mobility and other previously observed empirical patterns. Empirical tests using data on income mobility, tax rates, and public expenditures largely support the model predictions. We conclude that the common presumption that intergenerational mobility largely measures fairness or opportunity, and the resultant policy recommendations, are premature. (JEL D31, J24, J62)  相似文献   
970.
Urban agriculture has been growing in popularity around the globe. As more land is allocated to urban agriculture, there is a greater need to understand arthropod herbivores and natural enemies in these sites. The area and production type of urban agriculture could influence the risk of pest outbreaks, since larger food production areas are hypothesized to host more abundant herbivore populations. To determine the potential for pest outbreaks, we sampled for pests and above-ground natural enemies at three types of sites with variable amounts of cultivated areas: residential gardens, community gardens, and urban farms. We focused on pests of brassica, a widely cultivated crop family attacked by cabbageworms and aphids. We investigated the relationships of garden characteristics and surrounding land cover on natural enemies and herbivores of brassica. More herbivores and plant damage were expected in larger community gardens and urban farms. However, herbivore populations were low across sites and not explained by garden characteristics or area of production. Herbivory on brassica averaged less than 15% at all sites. Limited plant damage and low herbivore numbers may be attributed to the positive effects of garden flowers on parasitoids and high numbers of parasitoids and generalist predators across sites. Garden area and floral resources had positive relationships with natural enemy abundance, although community composition was similar across sites. Since arthropod natural enemies were abundant across all types of food production, this suggests that urban agriculture is a beneficial habitat that could support regulating ecosystem services such as biological control.  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