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   22670篇
  免费   559篇
管理学   3108篇
民族学   99篇
人才学   2篇
人口学   2154篇
丛书文集   133篇
教育普及   3篇
理论方法论   2055篇
现状及发展   1篇
综合类   461篇
社会学   11027篇
统计学   4186篇
  2023年   130篇
  2021年   120篇
  2020年   340篇
  2019年   423篇
  2018年   478篇
  2017年   693篇
  2016年   538篇
  2015年   392篇
  2014年   464篇
  2013年   3807篇
  2012年   721篇
  2011年   614篇
  2010年   450篇
  2009年   460篇
  2008年   515篇
  2007年   530篇
  2006年   446篇
  2005年   584篇
  2004年   516篇
  2003年   448篇
  2002年   495篇
  2001年   559篇
  2000年   553篇
  1999年   543篇
  1998年   369篇
  1997年   351篇
  1996年   355篇
  1995年   336篇
  1994年   321篇
  1993年   315篇
  1992年   384篇
  1991年   357篇
  1990年   345篇
  1989年   376篇
  1988年   331篇
  1987年   305篇
  1986年   309篇
  1985年   327篇
  1984年   342篇
  1983年   335篇
  1982年   270篇
  1981年   232篇
  1980年   226篇
  1979年   286篇
  1978年   217篇
  1977年   196篇
  1976年   180篇
  1975年   173篇
  1974年   167篇
  1973年   156篇
排序方式: 共有10000条查询结果,搜索用时 328 毫秒
851.
We hypothesized that (a) when people share a meaningful story, as opposed to when they share information, they make their partner listen well, and (b) that narrative-induced listening is positively associated with speakers’ psychological safety and negatively associated with their social anxiety. In Study 1 (N = 45), we showed that a meaningful story is perceived much more as a narrative and higher in narrative quality than two types of informational-discourses (telling about daily routine and describing buildings). In Study 2 (N = 52), we randomly asked participants to either share a meaningful story or tell about their daily routine. The participants sharing a meaningful story reported that their interlocutor was a better listener, d = 0.61, 95% CI |0.32, 0.92|. In Study 3 (N = 42), we compared the effect of sharing a meaningful story to describing buildings, and replicated the results of Study 2, d = 1.10, 95% CI |0.61, 1.59|. Moreover, we found that the perceived listening, which was induced by the narrative, mediated the manipulation effects on psychological safety, and social anxiety. Thus, we concluded that when speakers share meaningful stories they make their partner listen well and consequently experience higher psychological safety and lower feelings of social anxiety.  相似文献   
852.
While public libraries are often used by people experiencing homelessness, the value of libraries for homeless children and families has been understudied. This brief explores how public libraries can support families experiencing homelessness and how they can engage with other service providers and agencies as part of a collective impact model to support a wide array of families’ needs. Since homelessness is the result of many interconnected social and economic conditions, this paper also examines how awareness and a lack of knowledge of these factors can impact service delivery and expectations. Finally, a case study of how the Queens Library in New York City engages with family shelters to support children’s learning and exploration is included to provide best practice examples.  相似文献   
853.
The geographies of the current generation of young people are markedly distinct from previous generations by virtue of their access to a virtual playground. The vast majority of young people now engage in video gaming as a leisure activity. Drawing on findings from the 2009/2010 WHO Health Behaviour in School-aged Children study this paper set out to investigate the factors that might be associated with higher levels of video gaming. Information was collected from 4404 school students aged 11, 13 and 15 years, using anonymised self-completed questionnaires. Higher usage was defined as game play exceeding two hours a day. Separate analyses were conducted for boys and girls. For both genders higher levels of game playing was associated with early adolescence, opposite sex friends and minimal parental mediation. Bullying and going to bed hungry were associated with higher usage for boys only, while life satisfaction and family activities were linked to girls’ game playing only. Parents were identified as effective mediators of young people’s video game usage. The study identified gendered motivations for higher levels of game play, suggesting different interventions for boys and girls may be required in order for young people to create a balanced approach to video gaming.  相似文献   
854.
The transition to motherhood starts early in pregnancy and is completed when the mother feels competent in caring for the infant. Becoming the mother of a child with disabilities is demanding as their needs are complex. The aim of the review was to appraise completed qualitative and quantitative reports on the challenges of mothers of children with disabilities regarding their own transition to motherhood. A review of the literature was carried out through, first, a computerized search strategy to identify relevant studies from selected databases and, second, quality appraisal and thematic analysis of selected studies. The transition to motherhood of children with disabilities takes place in the inside world at home, the outside world external to home and the ‘going-between’ world of travelling between the two worlds. The mothers are challenged at home to integrate basic infant care with technical care of their children. In the outside world they often struggled to ensure that their children got the necessary professional care. Travelling between their homes and healthcare services posed many problems.  相似文献   
855.
This study addresses the gap in the research for sound multidimensional assessment of social capital and its relationship with risk-taking behaviour among youths living in disadvantaged communities. Social capital and adolescent risk-taking outcomes were studied cross-sectionally in 1371 secondary students living in two disadvantaged communities within Australia. First, a multidimensional measure of social capital was developed and tested using confirmatory factor analysis. Then, the associations between social capital and a range of youth risk-taking behaviours were examined using structural equation modelling across five-year groups (Grades 7–12). With a few exceptions, higher levels of social capital and belongingness within the school and community were generally associated with decreases in smoking, alcohol and drug consumption, and physical violence. Some outcomes were more strongly associated with family and peer social capital, while others associated more with neighbour and community social capital, indicating that attempts to build social capital need to be targeted across the whole community. This study supports the notion that social capital can be measured empirically and is beneficial in alleviating many of the detrimental health outcomes commonly associated with risk-taking behaviours during adolescence.  相似文献   
856.
The influence of competition level on referees’ decision-making was investigated. Referees’ decisions in 90 handball games (30 games X 3 competition levels) were observed in different situations related to the advantage rule, and 100 referees from two different levels of expertise were subsequently asked to offer explanations for the competition-level effects from the first part of the study. Results revealed that at the highest level of competition referees intervened less frequently with sporting sanctions, but more frequently with disciplinary sanctions. These effects were apparent mainly in immediate intervention situations and unsuccessful advantage situations, but not in successful situations. Referees explained these effects of competition level in terms of a player competence stereotype, in addition to referees’ different expertise across competition level. The implications of the findings for understanding how status-related stereotypes impact on intervention behavior are discussed.  相似文献   
857.
This study examined whether prenatal reflective functioning (RF) was related to mothers’ interactive style across contexts with their 6‐month‐old infants (M age = 6.02 months, SD = 0.41, 54% boys), and to what extent quality of prenatal RF could account for the influence of accumulated risk on maternal interactive behavior. Accumulated risk was defined as the sum‐score of a selection of risk factors that have been associated with suboptimal infant development. Mother–infant dyads (N = 133) were observed during free play, two teaching tasks, and the Still‐Face Paradigm (SFP). Better prenatal RF was associated with more positive maternal behavior in all settings and less negative behavior during teaching and SFP reengagement. Accumulated risk and prenatal RF predicted shared variance in maternal interactive behavior (with unique predictive effects observed only for RF on sensitivity during teaching and SFP play, and for accumulated risk on sensitivity and positive engagement during SFP play, and internalizing‐helplessness during SFP reengagement). Accumulated risk had an indirect effect on maternal sensitivity during teaching and SFP play through prenatal RF. These findings suggest not only that RF may be targeted prenatally to improve mother–infant interactions, but also that enhancing RF skills may ameliorate some of the negative consequences from more stable perinatal risk factors that influence parent–child interactions.  相似文献   
858.
Most previous studies of income inequality have either ignored capital gains or have used taxable realized capital gains to estimate top incomes. Neither of these approaches is fully satisfactory. We apply for the first time a new methodology that allows us to account for fundamental accrued capital gains as part of the top incomes in a theoretically consistent manner. We estimate the shares of the super-rich in Chile showing that accrued capital gains have a large impact on these estimates. Also, the top income shares estimated using fundamental capital gains appear to exhibit a more stable and presumably more plausible time profile than estimates based on capital gains derived from asset market variations.  相似文献   
859.
When immigrants enter the US they typically access a marriage market with a larger supply of educated spouses compared to the marriage market in their home countries. Absent any selectivity bias, this access should increase the likelihood that migrants ‘marry-up’ in terms of education. We combine survey data on British and German immigrants in the US with data on natives in Britain and Germany to estimate the causal effect of migration on educational mobility through cross-national marriage. To control for selective mating, we instrument educational attainment using government spending on education in the years each person was of school-age. To control for selective migration, we instrument the migration decision using inflows of immigrants to the US during puberty and early adulthood. We find strong selectivity effects that work against the positive prospects of the US marriage market. All migrants give up spousal education in exchange for US entry and assimilation. Migrant men also give up spousal education because they cannot compete with native men as bread-earners. Migrant women have some advantage in the US marriage market, as they can compete with native women in home production.  相似文献   
860.
The Arctic is one of the most radically altered parts of the world due to climate change, with significant social and cultural impacts as a result. Using discourse network analysis and qualitative textual analysis of articles published in the Globe and Mail and National Post during the period 2006 to 2010, we identify and analyze key frames that interpret the implications of climate change on the Arctic. We examine Canadian national news media coverage to ask: How does the Arctic enter media coverage of climate change? Is there evidence of a climate justice discourse in relation to regional disparities in the risks and harms of climate change between northern and southern Canada? Climate change in the Arctic is often framed through the lens of Canadian national interests, which downplays climate‐related social impacts that are already occurring at subnational political and geographical scales. L'Arctique est une des régions du monde la plus radicalement altérée par le changement climatique, menant comme résultat des importants changements sociaux et culturels. En utilisant l'analyse des réseaux de discours ainsi que l'analyse textuelle qualitative des articles publiés dans le Globe and Mail et le National Post de 2006 à 2010, nous identifions and analysons des cadres clés qui servent à interpréter les conséquences du changement climatique dans l'Arctique. Nous examinons la couverture des médias nationaux canadiens pour pouvoir demander : comment est‐ce que l'Arctique s'insère dans la couverture médiatique du changement climatique? Est‐ce qu'il y a de la preuve d'un discours de la justice climatique en relation des disparités régionales des risques et méfaits du changement climatique entre le Canada du nord et du sud? Le changement climatique dans l'Arctique est souvent encadré à travers le prisme des intérêts nationaux canadiens, ce qui minimise les impacts sociaux reliés au climat qui se produisent actuellement aux échelons sous‐nationaux politiques et géographiques.  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