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:      
  示例: 沙坡头地区,人工植被区,变化  检索词用空格隔开表示必须包含全部检索词,用“,”隔开表示只需满足任一检索词即可!
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   1284篇
  免费   5篇
管理学   228篇
民族学   6篇
人口学   157篇
丛书文集   9篇
理论方法论   113篇
综合类   18篇
社会学   630篇
统计学   128篇
  2023年   9篇
  2021年   13篇
  2020年   31篇
  2019年   26篇
  2018年   35篇
  2017年   50篇
  2016年   36篇
  2015年   31篇
  2014年   44篇
  2013年   191篇
  2012年   46篇
  2011年   46篇
  2010年   38篇
  2009年   38篇
  2008年   33篇
  2007年   40篇
  2006年   42篇
  2005年   44篇
  2004年   34篇
  2003年   25篇
  2002年   37篇
  2001年   31篇
  2000年   27篇
  1999年   33篇
  1998年   18篇
  1997年   13篇
  1996年   15篇
  1995年   18篇
  1994年   14篇
  1993年   7篇
  1992年   11篇
  1991年   16篇
  1990年   18篇
  1989年   11篇
  1988年   10篇
  1987年   9篇
  1986年   8篇
  1985年   9篇
  1984年   9篇
  1983年   18篇
  1982年   12篇
  1981年   10篇
  1980年   17篇
  1979年   6篇
  1978年   6篇
  1977年   6篇
  1976年   6篇
  1975年   8篇
  1974年   7篇
  1972年   4篇
排序方式: 共有1289条查询结果,搜索用时 0 毫秒
991.
    
Sexual minority youth (SMY) face multiple risks in their daily lives that may influence their need for supportive care. Health and social service providers have unique opportunities to provide culturally competent services to these youth. This article describes a community-based educational intervention created to increase providers’ knowledge, skills, and intention to support SMY. Based on the Information-Motivation-Behavioral Skills model, this pilot study found that for a diverse sample of multidisciplinary professionals (n = 2,850), the odds of behavioral intention (BI) to support SMY were significantly higher when trainings were relevant to the professionals’ experience (OR = 1.3), were sensitive (OR = 1.3), developed skills (OR = 1.1), and incorporated policy (OR = 1.2). Implications for the delivery of community-based trainings are provided.  相似文献   
992.
Recent studies have endorsed asset‐based approaches as a strategy for attaining the Millennium Development Goals. This article discusses asset indices as a diagnostic tool for these policies, systematically breaking them down into separate dimensions of private household wealth and basic public‐goods access and discussing how shortfalls in public‐goods supply can be related to deprivations in basic human capabilities under the asset framework. It then illustrates how asset indices can be used for the targeting of public infrastructure investments and private asset‐accumulation policies, with the help of a detailed case study of deprivations in household wealth and public‐service supply in Madagascar.  相似文献   
993.
994.
Until recently, Flemish family foster care was a temporary measure with as its most important goal, the reunification of the foster child with the birth parents. To date, nothing is known on the number of reunifications, nor has any study been undertaken into the factors (child, parent, foster parent and foster care process) associated with reunification. Case files of 127 foster children who exited foster care in 2007 were analysed. Dependent variables were type of foster care placement outcome (reunification, successful placement without reunification or breakdown) and place of residence after placement ending (with birth parents, extended family, foster family, residential care or living independently). After placement ending, only 40% of foster children went living with their parents, including foster children who were reunified (26%) and foster children who moved to their parents after a placement breakdown (14%). Characteristics of the foster children, and in particular absence of problem behaviour, were associated mainly with a return home. This may indicate that too much attention is paid to the functioning of the foster child and too little to improving the competencies of the parents and the (future) home environment.  相似文献   
995.
Governments and international organizations increasingly pursue the development of integrated policy strategies to govern persistent societal problems that crosscut the boundaries of traditional jurisdictions. In spite of the rising popularity of such integrated strategies, little is known about their effects. Although it is generally assumed that integrated strategies result in better outcomes, the evidence base to support this claim is sparse. This is not to say that no attempts to study the relationship between integrated strategies and policy outcomes have been undertaken at all; this paper presents a research synthesis of the fragmented evidence base. Eligible studies are interpreted and discussed by using a heuristic that distinguishes between programmatic and political success and failure. Apart from synthesizing the impacts that integrated strategies have had, the paper reflects on associated explanatory conditions and methodological approaches that have been used. The review almost exclusively finds reports of failure and constraining conditions. At the same time, methodological approaches are found to be largely unconvincing and considerable research gaps remain. The paper, therefore, ends with a nuanced answer to the question of whether integrated strategies are worth pursuing and sets out various avenues for further research.  相似文献   
996.
This study examines the relation between the proportion of co-ethnics in school and adolescents’ problem behaviour in school (e.g. skipping class and arguing with teachers) and whether friendship patterns are underlying this relationship. We use data from the Children of Immigrants Longitudinal Survey in Four European Countries on ±16,000 students in England, Germany, The Netherlands, and Sweden and find that children display less problem behaviour when the proportion of co-ethnics in school is higher. This relationship is mediated by the characteristics of the friends that students have: the proportion of co-ethnics in school positively relates to students’ proportion of in-school friends and co-ethnic friends in class, which are in turn negatively associated with problem behaviour in school. The strength and significance of these paths depend on students’ ethnicity and country of residence. Implications of this study are discussed in the conclusion.  相似文献   
997.
    
The present study examined the influence of infant visual cues on maternal vocal and facial expressiveness while speaking or singing and the influence of maternal visual cues on infant attention. Experiment 1 asked whether mothers exhibit more vocal emotion when speaking and singing to infants in or out of view. Adults judged which of each pair of audio excerpts (in view, out of view) sounded more emotional. Face‐to‐face vocalizations were judged more emotional than vocalizations to infants out of view. Moreover, mothers smiled considerably more while singing than while speaking to infants. Experiment 2 examined the influence of video feedback from infants on maternal speech and singing. Maternal vocalizations in the context of video feedback were judged to be less emotional than those in face‐to‐face contexts but more emotional than those in out‐of‐view contexts. Experiment 3 compared six‐month‐old infants’ attention to maternal speech and singing with audio‐only versions or with silent video‐only versions. Infants exhibited comparable attention to audio‐only versions of speech and singing but greater attention to video‐only versions of singing. The present investigation is unique in documenting the contribution of infant visual feedback to maternal vocal emotion in contexts that control for infants’ presence, visibility, and proximity.  相似文献   
998.
    
This note is about the attempt by the Australian State and Territory child care and protection systems to do without residential programmes. It traces the process of moving to this position and the historical and policy imperatives that supported this service direction. It also outlines the consequences of the absence of 24 hours-a-day 7-days-a-week residential education or treatment programmes for difficult and disturbed young people. It is both a cautionary and corrective note designed to underline the need for some specialised and highly selective residential programmes as part of any mature child care and protection system. This is something that Australia forgot.  相似文献   
999.
    
The study of conflict has dominated psychological research on marriage. This article documents its move from center stage, outlining how a broader canvas accommodates a richer picture of marriage. A brief sampling of new constructs such as forgiveness and sacrifice points to an organizing theme of transformative processes in emerging marital research. The implications of marital transformations are explored including spontaneous remission of distress, nonlinear dynamic systems that may produce unexpected and discontinuous change, possible nonarbitrary definitions of marital discord, and the potential for developing other constructs related to self‐transformation in marital research.  相似文献   
1000.
    
Abstract Metropolitan encroachment into surrounding countrysides has had noticeable consequences on American agriculture. This research examines gross farm sales in five categories of crops and five categories of livestock and poultry by county proximity to metropolitan areas. A seven‐category classification of counties was derived from the 1983 and 1993 Economic Research Service/Beale rural‐urban codes and used in the analysis. Our findings showed a significant metropolitan influence on agricultural sales of crop and livestock commodities, particularly those commodities that can be intensively produced on few numbers of acres. Some of this influence is attributed to the rapid growth of the urban areas during the past quarter century. Our results challenge widely‐held traditional perceptions about the spatial organization of agricultural production in the United States.  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