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   3056篇
  免费   105篇
管理学   549篇
民族学   25篇
人才学   4篇
人口学   210篇
丛书文集   18篇
理论方法论   342篇
综合类   22篇
社会学   1516篇
统计学   475篇
  2023年   23篇
  2022年   12篇
  2021年   15篇
  2020年   57篇
  2019年   89篇
  2018年   77篇
  2017年   101篇
  2016年   90篇
  2015年   74篇
  2014年   84篇
  2013年   490篇
  2012年   113篇
  2011年   91篇
  2010年   92篇
  2009年   90篇
  2008年   109篇
  2007年   88篇
  2006年   104篇
  2005年   126篇
  2004年   84篇
  2003年   92篇
  2002年   88篇
  2001年   70篇
  2000年   50篇
  1999年   60篇
  1998年   52篇
  1997年   33篇
  1996年   33篇
  1995年   27篇
  1994年   50篇
  1993年   45篇
  1992年   36篇
  1991年   44篇
  1990年   39篇
  1989年   33篇
  1988年   34篇
  1987年   34篇
  1986年   24篇
  1985年   42篇
  1984年   38篇
  1983年   28篇
  1982年   30篇
  1981年   19篇
  1980年   14篇
  1979年   13篇
  1978年   16篇
  1977年   16篇
  1976年   15篇
  1975年   12篇
  1974年   16篇
排序方式: 共有3161条查询结果,搜索用时 796 毫秒
121.
Three‐ to 4‐month‐old and 6‐ to 7‐month‐old infants were administered an infant version of the Face Dimensions Test that has been used with adults (e.g., Bukach, Le Grand, Kaiser, Bub, & Tanaka, 2008). Infants were familiarized with a photograph of a woman's face and then tested with the familiar face paired with a face differing in the (a) distance separating the eyes (a configural/eyes change), (b) distance between the nose and mouth (configural/mouth change), (c) size of the eyes (featural/eyes change), and (d) size of the mouth (featural/mouth change). Infants were shown to be more sensitive to (a) configural than featural change, and (b) change around the eyes versus the mouth. Implications for the development of face processing are discussed.  相似文献   
122.
The importance of informal care provided inside the household (co-residential care) is widely acknowledged in policy circles. However, the factors that determine the likelihood and scale of provision are not fully understood. A two-part model (2PM) is used to investigate both participation and levels of provision. Random effects dynamic panel specifications are employed. Results show that co-residential informal care competes with other time demanding activities, such as childcare and employment. Wealthier individuals are less likely to be caregivers, whereas wealthier households have a higher tendency towards caregiving. Evidence of both substitution and complementarity is found between formal and informal care. Informal care and health status are significantly related, with carers more likely to report worse General Health Questionnaire scores than non-carers. Finally, significant dynamic effects are observed with the continuance of the provision of informal care being more likely than the initiation of such activity, while heavy commitment in the past increases the hours provided in the current period.
Emmanouil MentzakisEmail:
  相似文献   
123.
Research conducted in Canada and the United States shows that the age of arrival of immigrant children, language spoken in the home, and ethno‐racial origin have consequences for English language acquisition and academic attainment. So far, however, the degree to which these factors have consequences for academic achievement at the post‐secondary level has scarcely been studied. In this study, it is found that the communication skills of university students who are the sons and daughters of immigrants, independent of length of time in Canada, are not as high as those of native‐born English‐speaking Canadians. Moreover, all else being equal, independent of length of time in the country, the university GPAs of immigrant and non‐European origin groups are generally lower than those of native‐born Canadians. Findings such as these suggest the presence of social and cultural processes at the family, community, and educational system level that continue to disadvantage identifiable groups of post‐secondary students.  相似文献   
124.
International policy now constantly advocates a need for populations to engage in more physical activity to promote health and to reduce society’s health care costs. Such policy has developed guidelines on recommended levels and intensity of physical activity and implicitly equates health with well-being. It is assumed that individual, and hence social welfare will be enhanced if the activity guidelines are met. This paper challenges that claim and raises questions for public policy priorities. Using an instrumental variable analysis to value the well-being from active leisure, it is shown that the well-being experienced from active leisure that is not of a recommended intensity to generate health benefits, perhaps due to its social, recreational or fun purpose, has a higher value of well-being than active leisure that does meet the guidelines. This suggests rethinking the motivation and foundation of existing policy and perhaps a realignment of priorities towards activity that has a greater contribution to social welfare through its intrinsic fun and possibly social interaction.  相似文献   
125.
The Rural Development Grant operates the Redundant Building Grant which is designed to bring redundant buildings in certain areas into commercial activity. This paper outlines the results of a recent evaluation of the Grant largely based on contacts with more than 400 applicants in nine counties. This survey is used to explore five aspects of rural policy: property development; business performance; job creation; integrated rural development; and aspects of land use planning.  相似文献   
126.
We investigate the exact coverage and expected length properties of the model averaged tail area (MATA) confidence interval proposed by Turek and Fletcher, CSDA, 2012, in the context of two nested, normal linear regression models. The simpler model is obtained by applying a single linear constraint on the regression parameter vector of the full model. For given length of response vector and nominal coverage of the MATA confidence interval, we consider all possible models of this type and all possible true parameter values, together with a wide class of design matrices and parameters of interest. Our results show that, while not ideal, MATA confidence intervals perform surprisingly well in our regression scenario, provided that we use the minimum weight within the class of weights that we consider on the simpler model.  相似文献   
127.
More often than not, the existing modes of contribution collection and benefit payment of social security organizations are adapted to the collective arrangements that characterize employer‐employee relationships. Extending coverage to individuals in difficult‐to‐reach groups, however, may require new modalities of service that can cope with many separate, secure transactions rather than a few bulk data transfers between organizations. Recent developments in electronic payment show its wide applicability in enabling huge volumes of such individual transactions. It is in this light that the article explores the potentials of this technology and identifies possible arrangements through which electronic payments could surmount barriers that stand in the way of covering difficult‐to‐reach groups. The high level of mobile phone penetration on a global scale augurs well for using e‐payment mechanisms to collect social security contributions and to deliver social security benefits and services. A generic model is used to describe the requisite elements to implement electronic payments in social protection programmes. Based on empirical evidence of current social protection practices from around the world, five scenarios are presented to describe possible configurations for electronic payment, from the simplest to the most sophisticated. The broader objective is to contribute in a practical manner to the international commitment to extend social protection to all, as defined by the 2030 Sustainable Development Goals.  相似文献   
128.
The possession and use of a personal social security number helps to structure people's daily lives. However, despite its fundamental normative importance, the social security number remains a little‐known entity. Increasingly universal and yet diverse in form, it is a legal and technical norm which is as much a mechanism for surveillance and monitoring as it is a necessary instrument for giving effect to social rights. Analysis of this constituent element of social security systems permits as assessment of some of the technical difficulties presented by the ever‐increasing movement of people and data. Overcoming these technical difficulties should permit to envisage a first technical step towards realizing a universal and global social security system.  相似文献   
129.
Current research on how adolescents cope with bullying is primarily quantitative, examines youth in Grades 1 through 6, and neglects to specifically assess how victims of bullying cope with being bullied. The current qualitative study explored the coping strategies of 22 rural middle- and high-school youth victimized by bullying. Results indicated that youth report using an array of emotion focused coping strategies (an internal coping strategy that focuses on emotion regulation) and problem focused coping strategies (active behaviors that are aimed to decrease or eradicate the stressor). These coping strategies included help seeking, physical and verbal aggression, standing up for themselves, and prosocial bystander behavior. While the majority of coping strategies were similar between middle- and high-school participants, these groups reported utilizing verbal and physical aggression in different ways. Further, certain coping strategies, such as help seeking and lashing out with physical and verbal aggression, were utilized as both emotion- and problem-focused coping strategies. Implications are discussed.  相似文献   
130.
This study explores the emotional and communicative profiles of young adults who have experienced a parental divorce and the emergence of a stepfamily to better understand influences on stepfamily satisfaction. Results of regression analyses indicate that strong negative emotions experienced at the time of the divorce are a negative predictor of current stepfamily satisfaction, even after controlling for age at the time of the divorce. In addition, level of open self-disclosure to a stepparent, although not parents, is a positive predictor of current stepfamily satisfaction. Finally, the extent to which the father has now fully explained the circumstances of the divorce is a positive predictor of current stepfamily satisfaction, whereas the extent to which mother has now fully explained the circumstances of the divorce is a negative predictor of current stepfamily satisfaction. These findings are discussed and future directions for research on stepfamily interaction and satisfaction are offered.  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