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   13828篇
  免费   239篇
  国内免费   1篇
管理学   1983篇
民族学   58篇
人才学   1篇
人口学   1387篇
丛书文集   76篇
教育普及   1篇
理论方法论   1242篇
现状及发展   1篇
综合类   167篇
社会学   6274篇
统计学   2878篇
  2023年   89篇
  2021年   72篇
  2020年   206篇
  2019年   277篇
  2018年   344篇
  2017年   451篇
  2016年   340篇
  2015年   247篇
  2014年   315篇
  2013年   2452篇
  2012年   474篇
  2011年   397篇
  2010年   324篇
  2009年   298篇
  2008年   341篇
  2007年   335篇
  2006年   297篇
  2005年   303篇
  2004年   279篇
  2003年   235篇
  2002年   284篇
  2001年   333篇
  2000年   333篇
  1999年   307篇
  1998年   213篇
  1997年   204篇
  1996年   191篇
  1995年   195篇
  1994年   169篇
  1993年   182篇
  1992年   213篇
  1991年   188篇
  1990年   186篇
  1989年   213篇
  1988年   191篇
  1987年   154篇
  1986年   170篇
  1985年   200篇
  1984年   191篇
  1983年   192篇
  1982年   142篇
  1981年   125篇
  1980年   123篇
  1979年   158篇
  1978年   126篇
  1977年   105篇
  1976年   108篇
  1975年   104篇
  1974年   94篇
  1973年   83篇
排序方式: 共有10000条查询结果,搜索用时 10 毫秒
991.
992.
Subjects' evaluation apprehension (anxiety about being judged by the experimenter) and commitment to (involvement in) the experiment were manipulated in an experimental study of subjects' honesty in postexperimental interviews. Previous studies have shown that subjects are typically dishonest in postexperimental interviews by refusing to admit prior knowledge of the experiment imparted to them by a confederate. It was found that both high apprehension and low commitment lead to greater subject honesty. Other features of the experimental design were successful in inducing subjects to be generally more honest than their counterparts in previous confederate tip-off studies.  相似文献   
993.
This study reports on the preliminary development and validation of the Social and Emotional Health Survey (SEHS) with a sample of 4,189 (51 % female) California students in Grades 8, 10, and 12. The SEHS was designed to measure the psychological building blocks of adolescents’ positive mental health and is operationalized in the present study by a theoretical model comprised of 12 measured indicators that form four first-order domains (belief-in-self, belief-in-others, emotional competence, and engaged living) that, in turn, contribute to one underlying, second-order meta-construct called covitality. This study was the first to investigate the validity and utility of the adolescent covitality construct, which is conceptualized as the synergistic effect of positive mental health resulting from the interplay among multiple positive-psychological building blocks. Findings from confirmatory factor analyses, invariance analysis, and latent means testing all supported the theoretical model underlying the SEHS, indicating that the second-order covitality model was the best fit for both males and females. Results from a path-modeling analysis indicated that covitality was a strong predictor of students’ subjective well-being (operationalized as a composite of life satisfaction, positive affect, and negative affect), and findings from additional concurrent validity analyses indicated that adolescents’ covitality level was significantly associated with self-reported academic achievement, perceptions of school safety, substance use, and experiences of depressive symptoms. Implications for theory, practice, and future research are discussed.  相似文献   
994.
Researchers know relatively little about the educational attainment of sexual minorities, despite the fact that educational attainment is consistently associated with a range of social, economic, and health outcomes. We examined whether sexual attraction in adolescence and early adulthood was associated with educational attainment in early adulthood among a nationally representative sample of US young adults. We analyzed waves I and IV restricted data from the National Longitudinal Study of Adolescent Health (n = 14,111). Sexual orientation was assessed using self-reports of romantic attraction in waves I (adolescence) and IV (adulthood). Multinomial regression models were estimated and all analyses were stratified by gender. Women attracted to the same-sex in adulthood only had lower educational attainment compared to women attracted only to the opposite-sex in adolescence and adulthood. Men attracted to the same-sex in adolescence only had lower educational attainment compared to men attracted only to the opposite-sex in adolescence and adulthood. Adolescent experiences and academic performance attenuated educational disparities among men and women. Adjustment for adolescent experiences also revealed a suppression effect; women attracted to the same-sex in adolescence and adulthood had lower predicted probabilities of having a high school diploma or less compared to women attracted only to the opposite-sex in adolescence and adulthood. Our findings challenge previous research documenting higher educational attainment among sexual minorities in the US. Additional population-based studies documenting the educational attainment of sexual-minority adults are needed.  相似文献   
995.
With increases in nonmarital fertility, the sequencing of transitions in early adulthood has become even more complex. Once the primary transition out of the parental home, marriage was first replaced by nonfamily living and cohabitation; more recently, many young adults have become parents before entering a coresidential union. Studies of leaving home, however, have not examined the role of early parenthood. Using the Young Adult Study of the 1979 National Longitudinal Survey of Youth (n = 4,674), we use logistic regression to analyze parenthood both as a correlate of leaving home and as a route from the home. We find that even in mid-adolescence, becoming a parent is linked with leaving home. Coming from a more affluent family is linked with leaving home via routes that do not involve children rather than those that do, and having a warm relationship with either a mother or a father retards leaving home, particularly to nonfamily living, but is not related to parental routes out of the home.  相似文献   
996.
The purpose of this study was to explore university students’ attitudes toward same-sex parenting and toward gay and lesbian rights. A total of 292 participants, aged between 18 and 27 (M = 21) responded to a questionnaire measuring attitudes toward parenting by gay men and lesbians, gay and lesbian rights, and beliefs about the etiology of homosexuality. Results revealed that the majority of students were against gay and lesbian parenting, gay and lesbian equal rights, and believed that homosexuality has a social/environmental basis. It was found that sexual prejudice is highly prevalent in Portuguese university students, and implications of these findings are discussed.  相似文献   
997.
Education’s benefits for individuals’ health are well documented, but it is unclear whether health benefits also accrue from the education of others in important social relationships. We assess the extent to which individuals’ own education combines with their spouse’s education to influence self-rated health among married persons aged 25 and older in the United States (N = 337,846) with pooled data from the 1997–2010 National Health Interview Survey. Results from age- and gender-specific models revealed that own education and spouse’s education each share an inverse association with fair/poor self-rated health among married men and women. Controlling for spousal education substantially attenuated the association between individuals’ own education and fair/poor self-rated health and the reduction in this association was greater for married women than married men. The results also suggest that husbands’ education is more important for wives’ self-rated health than vice versa. Spousal education particularly was important for married women aged 45–64. Overall, the results imply that individuals’ own education and spousal education combine to influence self-rated health within marriage. The results highlight the importance of shared resources in marriage for producing health.  相似文献   
998.
Municipal day care services for children in Norway have experienced two important reforms: the introduction of the Kindergarten Act in 1975, and the introduction of preschools for 6-year-olds in 1991. Focusing on the relationship between environmental inputs and policy outcomes, this article attempts to identify characteristics influencing the propensity towards early provision of day care in the municipalities. Applying logistic regression, service-specific factors show the greatest importance, as opposed to more general municipal features. The political system, in terms of high female representation and low representation from the Christian Democratic Party, the Center Party, and the Progress Party in local councils, seems responsive to the proportion of children, the percentage of women working full time, and average net income per capita. The persisting importance of gender-specific variables is discussed – suggesting different interpretations of the results in relation to the feminization of politics.  相似文献   
999.
Objectives. This article tests the hypothesis that social capital—measured in terms of civic group involvement, social and racial trust, and political engagement—leads to charitable behavior by individuals. Methods. I introduce measures of the “social capital elasticity of giving,” which facilitate comparisons between the effects on charity of different social capital types. Using data from the 2000 Social Capital Community Benchmark Survey, I estimate these elasticities with tobit regression models. Results. I find strong links between changes in social capital stocks and changes in giving levels. Furthermore, I find that different social capital types have differing levels of impact on giving. Conclusions. Charitable giving appears to be a beneficial consequence of some types of social capital.  相似文献   
1000.
Although analyses about what representative individuals would choose behind the veil of ignorance have been regarded as n-person non-zero-sum cooperative games, none of the apparatus of game theory beyond 2-person non-zero-sum noncooperative games has actually been used. The grand coalition of all representative individuals emerges from behind the veil of ignorance to form a society unanimously. This paper investigates the consequences of extending the original position to allow three persons the possibility of forming binding coalitions behind the veil of ignorance. Just enough information and structure is added to the traditional analysis, to make bargaining feasible. The result is that whether or not representative individuals know the payoff structure for forming a society, a stable unanimous agreement may not emerge. The analysis shows yet another way in which original position arguments are sensitive to assumptions about information and criteria of rational decision behind the veil of ignorance.  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