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   1600篇
  免费   50篇
管理学   91篇
民族学   10篇
人口学   143篇
丛书文集   7篇
理论方法论   186篇
综合类   9篇
社会学   1103篇
统计学   101篇
  2023年   5篇
  2021年   11篇
  2020年   46篇
  2019年   45篇
  2018年   55篇
  2017年   80篇
  2016年   42篇
  2015年   36篇
  2014年   37篇
  2013年   326篇
  2012年   50篇
  2011年   62篇
  2010年   36篇
  2009年   34篇
  2008年   46篇
  2007年   53篇
  2006年   57篇
  2005年   55篇
  2004年   74篇
  2003年   35篇
  2002年   46篇
  2001年   38篇
  2000年   14篇
  1999年   25篇
  1998年   21篇
  1997年   21篇
  1996年   11篇
  1995年   12篇
  1994年   17篇
  1993年   18篇
  1992年   10篇
  1991年   21篇
  1990年   19篇
  1989年   18篇
  1988年   14篇
  1987年   20篇
  1986年   12篇
  1985年   13篇
  1984年   13篇
  1983年   17篇
  1982年   7篇
  1981年   10篇
  1980年   9篇
  1978年   11篇
  1977年   5篇
  1976年   9篇
  1975年   4篇
  1974年   5篇
  1973年   5篇
  1971年   4篇
排序方式: 共有1650条查询结果,搜索用时 672 毫秒
991.
Abstract

Individual goals for first dates are examined in the context of requesting the first date, accepting a first date request, going on a blind date, and going on a group date in a sample of 211 college students. Results indicate that first dates are more likely to be group dates than blind dates or requested dates and those individuals on blind dates and group dates are less likely to endorse goals of having sex or investigating romantic potential than those who request or accept the first date. Results are considered using error management theory, cognitive valence theory, and stage models of relationships. The differences that emerge across the type of date initiation indicate the type of date initiation and are important in addressing courtship.  相似文献   
992.
A goal of behavior-analytic interventions is to produce behavior that is maintained under naturalistic conditions. In this experiment, we studied the effects of a speaker immersion protocol (SIP) on the number of speaker responses (tacts and mands) emitted by 3 preschool students under naturalistic, not directly targeted, conditions. During the SIP, the researchers provided 100 daily opportunities for the participants to emit mands using the target mand form by contriving establishing operations (EOs) throughout the school day. The effects of the intervention were evaluated using a multiple-probe design by measuring target mands during EO probe sessions and the number of mands and tacts emitted during noninstructional-setting probe sessions. The researchers found that the SIP produced increases in both targeted and generalized verbal behavior.Electronic supplementary materialThe online version of this article (10.1007/s40616-020-00133-2) contains supplementary material, which is available to authorized users.  相似文献   
993.
Public Organization Review - The urgent need to improve the quality of healthcare provision in developing countries such as Nigeria and Ghana is caused in part by inadequate financial support for...  相似文献   
994.
ABSTRACT

Much of wildlife conservation literature and practices rely on euro-western nomenclature that are legacies of empire. Although seemingly neutral, the practice of (re)naming nature depends on political, philosophical, and social assumptions that encode top-down behaviour and governance in conservation practices. Indigenous communities’ processes of classifying nature are not recognized as valid and, as such, their conservation strategies are made invisible. If Indigenous knowledge is accounted for by contemporary conservation, it is often from a paradigm that focusses on ecological-scientific knowledge, rather than the complex inter-species relationships that Indigenous communities have with nature. As such, Indigenous communities are often perceived as a barrier or problem towards conservation, due to what is perceived as their lack of care for species of conservation interest. In this article, drawing on a kin study of maias conservation in Sarawak, I explore the power dynamics and tensions emerging within practice and discourses of conservation. In particular, I focus upon the struggles and negotiations in which conservation actors understand the orang utan, as they are commonly known in an international space, that overshadow the Iban ways of naming and knowing the orang utan as maias. Finally, I discuss the Iban classifications/names and relations with nature and how this affects different understandings of conservation.  相似文献   
995.
ABSTRACT

Women’s political underrepresentation in right-wing parties remains a global phenomenon. Despite their rejection of “identity politics,” the United Kingdom’s Conservative Party and the United States’ Republican Party have launched formal initiatives to recruit women legislative candidates. In this article, we ask: How do right-wing women advocate for increasing women’s representation within parties that explicitly reject group identity politics? More specifically, we examine 1) how party elites frame the UK’s Women2Win and the US’s Project GROW campaigns, and 2) the role that women play in each of these initiatives. Through interviews with party elites and content analyses of news articles and campaign materials, we show that right-wing women in both countries function as strategic party actors, advocating for women’s representation tactically within the specific ideological and electoral context of their party.  相似文献   
996.
Abstract

Objective: Examine Juul use patterns, sociodemographic and personal factors associated with Juul use, and reasons for Juul initiation and current use, among college students. Participants: Convenience sample of 371 undergraduates at a large university in the southeast; recruited April 2018. Methods: Cross-sectional design using an online survey. Logistic regression identified the personal risk factors for current use. Results: Over 80% of participants recognized Juul; 36% reported ever use and 21% past 30-day use. Significant risk factors for current Juul use were: male, White/non-Hispanic, lower undergraduate, and current cigarette smoker. Current Juul users chose ease of use and lack of a bad smell as reasons for use. Ever Juul users most commonly endorsed curiosity and use by friends as reasons for trying Juul. Conclusions: Given the propensity for nicotine addiction among youth and young adults, rates of Juul use are alarming and warrant immediate intervention.  相似文献   
997.
998.
Ever since genetically modified (GM) foods were introduced into the food supply in the 1990s they have provoked debate and concern. The number of GM foods approved by the U.S. Food and Drug Administration and offered on supermarket shelves has steadily grown at the same time that public wariness about the safety of GM foods has increased. Studies within the scientific literature show a strikingly large gender gap in attitudes towards GM foods with women consistently more skeptical than men. However, there have been few efforts to understand the determinants of the gender gap on GM foods within the political science literature. This study employs a 2014 Pew Research Center survey on science issues to test several possible explanations for the gender gap in attitudes towards GM foods rooted in the different life experiences of women and men. The results show that while being a parent predicts more skeptical views about genetically modified foods overall it does not explain the gender gap in attitudes. In contrast, knowledge about science and having confidence in science do play a significant role in mediating the gender gap. By exploring the robust and pervasive gender gap on the issue of GM foods, this study sheds light on the fundamentally different ways men and women approach political issues.  相似文献   
999.
The sequential analogue of the Behrens-Fisher problem is considered, The pooled-variance two sample sequential t test is modified to account for unequal variances. Operating cha-racteristic and average-sample-number curves are calculated for both the pooled variance and the modified t tests by computer simulations, An example is given using data from a tissue assay for breast cancer tumors.  相似文献   
1000.
As homeownership has been expanding in the United States over the past several decades, residential segregation between blacks and whites has been declining in most metropolitan areas. However, the degree to which the residential patterns of new homebuyers have mirrored these overall trends in segregation and how the massive increase in home buying has related to changes in segregation has remained largely unexplored. This paper examines the segregation of new black homebuyers from white households, new white homebuyers from black households, and black and white households from each other using Home Mortgage Disclosure Act (HMDA) data from 1992 to 2010 merged with data from the Census and ACS. I find that black homebuyers are less segregated from white households than black homeowners overall and black households in general, providing evidence in support of the spatial assimilation model that would predict better outcomes for homeowners. Also consistent with the spatial assimilation perspective, I found in the multivariate models that increased income parity between blacks and whites and growth in black lending are associated with average declines in black/white household segregation from 1990 to 2010. Although subprime lending was not associated with overall changes in segregation, metropolitan areas with higher percentages of loans to blacks from subprime lenders experienced increases in segregation of both black homeowners from white households as well as white owners from black households.  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