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   13329篇
  免费   274篇
  国内免费   15篇
管理学   1606篇
民族学   80篇
人才学   1篇
人口学   1163篇
丛书文集   143篇
理论方法论   1235篇
综合类   696篇
社会学   7025篇
统计学   1669篇
  2023年   74篇
  2021年   107篇
  2020年   213篇
  2019年   259篇
  2018年   331篇
  2017年   481篇
  2016年   325篇
  2015年   273篇
  2014年   314篇
  2013年   2076篇
  2012年   482篇
  2011年   470篇
  2010年   398篇
  2009年   331篇
  2008年   402篇
  2007年   415篇
  2006年   420篇
  2005年   362篇
  2004年   291篇
  2003年   255篇
  2002年   271篇
  2001年   340篇
  2000年   284篇
  1999年   273篇
  1998年   200篇
  1997年   170篇
  1996年   158篇
  1995年   174篇
  1994年   159篇
  1993年   162篇
  1992年   185篇
  1991年   186篇
  1990年   184篇
  1989年   159篇
  1988年   167篇
  1987年   191篇
  1986年   147篇
  1985年   157篇
  1984年   176篇
  1983年   152篇
  1982年   151篇
  1981年   121篇
  1980年   111篇
  1979年   122篇
  1978年   95篇
  1977年   79篇
  1976年   94篇
  1975年   109篇
  1974年   84篇
  1972年   62篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
This article reports on the impact of the Savvy Caregiver Program (SCP) on English-speaking caregivers of Hispanic, Black/African American, and Asian/Pacific Islander descent. Caregivers completed a questionnaire prior to study enrollment, at 6 and 12 months postenrollment. Caregivers in all 3 ethnic groups showed more caregiver competence, reduced depression, greater tolerance for care recipients’ memory problems, better management of their overall situation, and improved perception of that situation 6 months and 12 months post-enrollment. The study demonstrates that in the sample studied the SCP was as effective in helping ethnically diverse caregivers as it has shown to be with Caucasian caregivers.  相似文献   
992.
Abstract

This paper presents the results of an empirical investigation of one of the most common yet least optimized production management practices—expediting. The intention of this study was to generate quantitative insight into issues that underlie expediting decision making, such as the relative frequency of various causes of expediting, commonly used expediting strategies and tactics, and the interaction of expediting and the production scheduling environment in use. The study centered around a survey sent to 1768 manufacturing staff personnel, with 182 usable questionnaires returned. It is hoped that the data and conclusions presented in this paper will be of use to production management researchers who are interested in expediting as a managerial decision.  相似文献   
993.
A sequential probability ratio test (SPET) of the mean of a normal distribution with unknown variance, based on an independent sequence of groups of observations, is investigated and its efficiency compared with that of the WAGE sequential t-test, which is based on an invariantly sufficient sequence of test statistics.  相似文献   
994.
995.
996.
This qualitative study examined the experiences of alternative school students as they participated in a mindfulness skills program. A 7-month school-based mindfulness skills program was integrated into the Grade 10 curriculum for high school students (N = 19; 10 boys and 9 girls, ages 15–17). Students engaged in mindfulness practices twice weekly during class time. Students practiced breath awareness, and seated, walking, and lying mindfulness meditation during the course of the program. Students completed initial and final questionnaires about their experiences as well as written journal entries based on their experiences in the program. At the completion of the program, 14 of the 19 program completers were interviewed (6 boys and 8 girls). Data analysis yielded two broad areas of perceived benefits of participation in the mindfulness skills program: intrapersonal benefits and interpersonal benefits. Intrapersonal benefits included themes of self-awareness and self-regulation (including cognition, emotions, and behavior). Interpersonal benefits included themes of building relationships (with peers, family members, and teachers) and learning to trust. These findings may be useful when planning school-based mindfulness programs and may serve as a guide for researchers studying mindfulness practices for youth.  相似文献   
997.
The authors describe the socioeconomic characteristics and fertility patterns of female immigrants from Latin America to the United States, with a focus on reasons for fertility differentials. "Using the one per cent public use sample from the 1970 and 1980 United States census, we first compare changes in socio economic characteristics from 1970 to 1980, and then examine the determinants of fertility of female immigrants to the United States, aged 16-49, from four Latin American areas or countries of birth.... The findings...suggest that there are direct effects of demographic, assimilation, and socioeconomic variables beyond those mediated by the variables in each of these sets. Further, regardless of the model, the effect of the clusters of demographic characteristics is most apparent. Age categories and marital status are the strongest indexed determinants of immigrant fertility.... The effect of education and employment is strong. Among assimilation variables, duration of residence and language ability are significant determinants of Hispanic immigrant fertility." (SUMMARY IN FRE AND SPA)  相似文献   
998.
This article describes the innovative use of a pop culture source-song lyrics to augment the teaching of qualitative methods in social work research. The use of pop culture sources as learning tools in the MSW curriculum has the potential to enhance the learning experience for students. These techniques have not been applied in the content of MSW research classes. This approach could be advantageous over other typical data sources because it is more accessible to students while also being reflective of a collective identity of people in society. Future work should assess student and educator responses to this pedagogical approach.  相似文献   
999.
This study challenges the prevailing view that marital companionship promotes marital satisfaction. By following a cohort of married couples for over a decade and by incorporating several methodological improvements—such as refining the measurement of marital satisfaction, determining how much spouses enjoy doing the leisure activities they pursue together and apart, and using diary data to portray marital leisure patterns—we found that the association between companionship and satisfaction is less robust than previously believed, and that it depends on how often spouses pursue activities that reflect their own and their partner's leisure preferences. Over time, involvement in leisure liked by husbands but disliked by wives, whether as a couple or by husbands alone, is both a cause and a consequence of wives' dissatisfaction.  相似文献   
1000.
本文在处理大量海关原始数据的基础上,首次厘清了近代50年内广西对外贸易的商品结构及其走势.进口商品结构变化不大,一直以棉货类、燃料类等生活资料型商品为大宗.后期进口中国货比例增加.出口商品主要以资源性商品和传统手工业品为主.特产资源性商品拥有较为长期的优势.一般资源性产品受市场波动影响明显.面向港溴地区的城市生活资料型商品有增加趋势.传统手工业品在机器工业产品的打压下日趋衰微.  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