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   88569篇
  免费   2783篇
  国内免费   5篇
管理学   12217篇
民族学   530篇
人才学   25篇
人口学   6714篇
丛书文集   509篇
理论方法论   9330篇
综合类   2092篇
社会学   41243篇
统计学   18697篇
  2023年   503篇
  2021年   562篇
  2020年   1489篇
  2019年   2188篇
  2018年   2029篇
  2017年   3086篇
  2016年   2336篇
  2015年   2033篇
  2014年   2611篇
  2013年   18776篇
  2012年   2234篇
  2011年   2051篇
  2010年   1917篇
  2009年   2154篇
  2008年   1989篇
  2007年   1781篇
  2006年   2030篇
  2005年   2234篇
  2004年   2111篇
  2003年   1835篇
  2002年   1938篇
  2001年   1916篇
  2000年   1708篇
  1999年   1628篇
  1998年   1475篇
  1997年   1319篇
  1996年   1273篇
  1995年   1310篇
  1994年   1284篇
  1993年   1255篇
  1992年   1245篇
  1991年   1173篇
  1990年   1172篇
  1989年   1010篇
  1988年   1104篇
  1987年   979篇
  1986年   877篇
  1985年   1037篇
  1984年   1103篇
  1983年   987篇
  1982年   924篇
  1981年   853篇
  1980年   798篇
  1979年   858篇
  1978年   769篇
  1977年   683篇
  1976年   645篇
  1975年   621篇
  1974年   509篇
  1973年   433篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
981.
This two-part study applied an ecocultural perspective to socialization of daily and long-term goals in low-income Mexican-American and European-American families with children in third, fifth, and seventh grades. The first part of the study examined family members' participation and parents' socialization goals and guidance strategies for their children's daily household chores and homework activities. The second part of the study examined parents' long-term aspirations and guidance strategies for their children's educational, vocational, and moral development. For daily activities, results showed that in Mexican-American families both parents and siblings played important roles, whereas in European-American families parents were the primary socialization agents. As predicted, in both groups parents' expertise influenced their guidance strategies. Finally, Mexican-American and European-American parents differed in their relative endorsement of gender, relational, and self-reliance goals for household chores. For long-term goals, parents in both groups held high educational, vocational, and moral aspirations for their children. However, some parents of seventh-graders had lower educational and vocational aspirations than those of fifth- and third-graders. Although expertise consistently influenced Mexican-American parents' guidance strategies, the pattern for European-American parents was mixed. The discussion highlights between- and within-group differences in daily and long-term socialization practices with an emphasis on resources and vulnerabilities in the families.  相似文献   
982.
983.
984.
Men,women, and sustainability   总被引:1,自引:1,他引:0  
  相似文献   
985.
Which countries tend to sign international environmental treaties and why? This study tests the ability of quantitative cross-national political and economic analysis to predict participation in international environmental agreements over the period 1963–1987. Cross-sectional ordinary least squares regressions suggest that poor, highly indebted countries that are dependent on very few trading partners and that have repres-sive regimes are far more likely to be nonsignatories. The results suggest strategies for increasing the likelihood that nations will ratify hture environmental treaties.  相似文献   
986.
TOWARD A SYNTHESIS OF FEMINIST AND DEMOGRAPHIC PERSPECTIVES ON FERTILITY   总被引:1,自引:0,他引:1  
In explaining fertility and reproduction and emerging patterns of childbearing, both demographers and feminists have centered their thinking on women's status (economic and social), women's changing roles and life experiences (increased labor force participation, increased availability of reproductive options, declining marriage rates in many parts of the industrialized world, and the centrality of women to development), and women as agents in micro- and macrolevel changes in family, fertility, and economic change. Although demography has recently begun to integrate feminist perspectives into fertility explanations, there is not yet a synthesis of feminist theoretical insights with demographic questions. Drawing from recent thinking on global and national political and policy challenges in the less and more developed worlds, to the epistemological shifts in knowledge of reproduction/mothering, to changes in the technologies of reproduction, this article moves toward an integration of feminist and demographic perspectives on fertility.
…far from the economic dependence of women working in the interests of motherhood, it is the steadily acting cause of a pathological maternity and a declining birthrate.
Charlotte Perkins Stetson, Women and Economics , 1899  相似文献   
987.
We consider the problem of estimating the scale parameter of an exponential or a gamma distribution under squared error loss when the scale parameter θ is known to be greater than some fixed value θ0. Natural estimators in this setting include truncated linear functions of the sufficient statistic. Such estimators are typically inadmissible, but explicit improvements seem difficult to find. Some are presented here. A particularly interesting finding is that estimators which are admissible in the untruncated problem which take values only in the interior of the truncated parameter space are found to be inadmissible for the truncated problem.  相似文献   
988.
Tattling on siblings was observed in 40 families with 2- and 4-year-old children. All but 5 children reported sibling misbehaviour to parents with younger siblings tattling largely to recruit parental help in resolving conflict issues, and older siblings tattling both in the context of conflict and merely to inform parents of their siblings' misbehaviour. Parents rarely reprimanded children for tattling, but either ignored it, or responded to information in tattlers' reports regardless of context or whether older or younger children tattled. Children did not tattle equally on all sibling transgressions, but emphasized physical aggression and property damage, issues that also elicited parental discipline. Tattling is discussed in relation to children's understanding of the dynamics and moral standards of family life.  相似文献   
989.
The authors examined nineteen nonprofit performing arts organizations, investigating the distribution of influence among organizational members, the grouping of volunteers and staff in organizational structures, and the effectiveness of the organizations. The organizations' effectiveness was assessed using multiple performance indicators. The analysis revealed five groupings or configurations of influence, which correlated to the organizations exhibiting the highest and lowest levels of organizational effectiveness. The authors conclude that a variety of structures are associated with good performance but structural dysfunctions are associated with organizational failure, and that members' commitment to an organization's structure is an important element of success.  相似文献   
990.
The Planning and Statistical Department of the State Family Planning Commission of China in July 1988 implemented a fertility and birth control survey in China on 2.16 million married women ages 15-57 using stratified, systematic, clustered, and non-proportionate sampling. 3 questionnaires were used: household, married women, and sample unit covering basic status, family planning status, general characteristics of pregnancy and contraception, population flow, deaths since 1981, and socioeconomic status. The authors suggest several international cooperative research projects including: design of fertility and contraception survey; Chinese population growth; Chinese population dynamics; dynamics of marital and family status; fertility; contraception and birth control; mortality; migration; status of the nationalities of China; population development; regional fertility status; and others. Data from the survey will be available in June 1989.  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