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   11204篇
  免费   29篇
  国内免费   11篇
管理学   1543篇
劳动科学   2篇
民族学   124篇
人口学   2432篇
丛书文集   223篇
理论方法论   511篇
综合类   702篇
社会学   4475篇
统计学   1232篇
  2023年   7篇
  2022年   18篇
  2021年   21篇
  2020年   11篇
  2019年   12篇
  2018年   1669篇
  2017年   1664篇
  2016年   1088篇
  2015年   63篇
  2014年   60篇
  2013年   68篇
  2012年   360篇
  2011年   1191篇
  2010年   1092篇
  2009年   853篇
  2008年   881篇
  2007年   1066篇
  2006年   71篇
  2005年   270篇
  2004年   285篇
  2003年   220篇
  2002年   110篇
  2001年   37篇
  2000年   25篇
  1999年   13篇
  1998年   4篇
  1997年   8篇
  1996年   34篇
  1995年   15篇
  1994年   4篇
  1993年   5篇
  1992年   2篇
  1990年   6篇
  1989年   2篇
  1988年   8篇
  1984年   1篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
In this paper, the task of determining expected values of sample moments, where the sample members have been selected based on noisy information, is considered. This task is a recurring problem in the theory of evolution strategies. Exact expressions for expected values of sums of products of concomitants of selected order statistics are derived. Then, using Edgeworth and Cornish-Fisher approximations, explicit results that depend on coefficients that can be determined numerically are obtained. While the results are exact only for normal populations, it is shown experimentally that including skewness and kurtosis in the calculations can yield greatly improved results for other distributions.  相似文献   
82.
Li  Hongbo  Wang  Li  Xia  Xuan  Liu  Hongbo 《Journal of Combinatorial Optimization》2021,42(4):1030-1041
Journal of Combinatorial Optimization - Drawing on a sample of 245 patients from a tertiary general hospital in China, we examine the effect of perceived service quality of traditional Chinese...  相似文献   
83.
“自由人联合体”思想是《共产党宣言》中的重要思想。恩格斯对这一思想的形成有着独特性的贡献。依据经典文本,恩格斯的独特性贡献主要体现在如下四方面:从社会秩序出发揭示资产阶级社会的无序性事实,阐明构建“自由人联合体”之必要性;从利益出发论证共产主义社会所应遵循的共同利益原则,阐明“自由人联合体”之优越性;从人性与自由关系出发阐述资产阶级社会中人性丧失的状况,阐明“自由人联合体”之价值性;从社会实践出发提出消灭资本主义私有制、推翻资产阶级统治、实现共产主义的革命道路,阐明“自由人联合体”之革命性。  相似文献   
84.
爱默生、梭罗和惠特曼的肯定性“自我”书写与霍桑、梅尔维尔、爱伦·坡等的否定性“自我”书写共同为美国独立民族意识和国族文学的构建奠定了基础。美国的个人主义更深入地植根于前者的超验主义主体思想中,但由于对“自我”内在神性和超验原则的强调,其主体思想陷入唯我和超验的困境,促使他们不得不进行反思与修正。当代美国哲学家、汉学家安乐哲吸收中西传统的有关思想,提出以儒家角色伦理学作为走出西方个人主义困境的有效途径。爱默生、梭罗和惠特曼的“自我”书写与儒家角色伦理学的人学思想有趋同倾向,前者呈现从抽象道德主体到具象道德主体、从自我内在性到自然外在性及群体外在性的转变趋势,这一转向与儒家角色伦理学对具象外在性人际关系的关注有共通之处,由此可见儒家思想的普遍意义。  相似文献   
85.
Author of the highly acclaimed Borrowed Time: An AIDS Memoir (1988) and winner of the 1992 National Book Award for his autobiography Becoming a Man: Half a Life Story, Paul Monette died of complications from AIDS in Los Angeles on February 12, 1995. His most recent work, Last Watch of the Night: Essays Too Personal and Otherwise (1994), is his third volume in a trilogy of autobiographical writing on growing up gay, coming-out, and living with AIDS. A graduate of Phillips Academy and Yale University, Monette received a number of awards for his writing and his work as an outspoken voice in the battle against AIDS, including the National Book Award, three Lambda Literary awards, the PEN Center West Freedom to Write Award, and three honorary doctorate degrees, from Wesleyan University, the City University of New York, and the State University of New York at Oswego. A memorial service was held for Monette on Sunday, February 19, 1995, at the Directors Guild of America on Sunset Boulevard in Los Angeles. Paul Monette was 49.  相似文献   
86.
In the binary single constraint Knapsack Problem, denoted KP, we are given a knapsack of fixed capacity c and a set of n items. Each item j, j = 1,...,n, has an associated size or weight wj and a profit pj. The goal is to determine whether or not item j, j = 1,...,n, should be included in the knapsack. The objective is to maximize the total profit without exceeding the capacity c of the knapsack. In this paper, we study the sensitivity of the optimum of the KP to perturbations of either the profit or the weight of an item. We give approximate and exact interval limits for both cases (profit and weight) and propose several polynomial time algorithms able to reach these interval limits. The performance of the proposed algorithms are evaluated on a large number of problem instances.  相似文献   
87.
88.
Dual Career Couples as a form of work-life-integrationThe author discusses the situation of dual career couples, when both are university graduates following an own career. Basing on a respective publication she delineates the current, mostly American research and reports on several German research projects, which endeavour to analyse the relation between gender and inequality in dual career couples.  相似文献   
89.
From supervision to mediation and vice versaMediation in organizations becomes more and more important because of increasing conflicts. The question is, which competencies of the counsellor are necessary, and above all, whether mediation is a particular method. The author explains the method of mediation and illustrates his concept of “patchwork-mediation”. This procedure allows to build a bridge between supervision and mediation.  相似文献   
90.
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