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   19970篇
  免费   412篇
  国内免费   1篇
管理学   2925篇
民族学   72篇
人才学   1篇
人口学   1948篇
丛书文集   82篇
教育普及   2篇
理论方法论   1803篇
现状及发展   1篇
综合类   269篇
社会学   9666篇
统计学   3614篇
  2023年   120篇
  2021年   132篇
  2020年   313篇
  2019年   404篇
  2018年   465篇
  2017年   640篇
  2016年   512篇
  2015年   369篇
  2014年   481篇
  2013年   3075篇
  2012年   661篇
  2011年   643篇
  2010年   475篇
  2009年   399篇
  2008年   466篇
  2007年   480篇
  2006年   472篇
  2005年   453篇
  2004年   418篇
  2003年   388篇
  2002年   431篇
  2001年   532篇
  2000年   536篇
  1999年   472篇
  1998年   350篇
  1997年   318篇
  1996年   325篇
  1995年   304篇
  1994年   287篇
  1993年   293篇
  1992年   342篇
  1991年   322篇
  1990年   289篇
  1989年   295篇
  1988年   294篇
  1987年   257篇
  1986年   246篇
  1985年   282篇
  1984年   273篇
  1983年   253篇
  1982年   219篇
  1981年   183篇
  1980年   165篇
  1979年   197篇
  1978年   176篇
  1977年   161篇
  1976年   134篇
  1975年   161篇
  1974年   121篇
  1973年   116篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
92.
93.
94.
95.
Case managers are among the direct service providers responsible for engaging people with severe mental illnesses. Understanding how they interpret and respond to clinically difficult situations can inform ways to intervene and reduce service disengagement. This qualitative study explored clinically difficult situations when case managers invoked the term ??sabotage??. Interviews were conducted with 21 case managers and analyzed by co-coders focusing on how case managers used the term sabotage to describe service user behavior. Themes that emerged were attributing sabotage to; fear of success, fear of attaining what you desire, avoidance of responsibility and change, and a lack of structured support. Drawing on the concepts of clinical case management and mental health recovery, we consider implications for the training and supervision of case managers and how services are structured.  相似文献   
96.
This paper is concerned with the solution of linear and linear goal programming problems in which the values of the right-hand side parameters are not fixed constants. Specifically, we are concerned with linear optimization problems in which the right-hand sides of the constraining equations are free to vary subject to a set of linear constraining equations. By formulating a relaxed linear program wherein the right-hand sides are treated as variables, we show how it is possible to solve one larger linear program that yields as a solution not only the optimal values for the decision variables, but also the optimal values for the right-hand sides.  相似文献   
97.
This paper describes how the core portion of the undergraduate business program at Indiana University was revised to facilitate integration of basic functionally oriented decision making skills and thus help students gain a deeper understanding of the interdependence of business decisions. It relates, in essence, why and how a single computer-oriented case study which demanded a solution to a large-scale, unified finance-marketing-production problem was used at Indiana University, mentions how we plan to accomplish further integration of functional material, and provides some insight into student reaction to what was, in fact, a massive project from both student and administrative points of view.  相似文献   
98.
The crucial issues in the administration of higher education embody the very purpose, function, and concept of each institution. The institution's administrative policies are based on the combined philosophy of many conflicting interest groups such as taxpayers, donors, administrators, faculty, students, staff, and users of university services. A function performed by the university which is receiving increasing attention and outside pressure is the formulation of admissions policy for newly entering students. This paper investigates problems involved in the admissions planning and presents a goal programming model as an optimization tool for the problem.  相似文献   
99.
100.
A heteroscedastic regression based on the odd log-logistic Marshall–Olkin normal (OLLMON) distribution is defined by extending previous models. Some structural properties of this distribution are presented. The estimation of the parameters is addressed by maximum likelihood. For different parameter settings, sample sizes and some scenarios, various simulations investigate the performance of the heteroscedastic OLLMON regression. We use residual analysis to detect influential observations and to check the model assumptions. The new regression explains the mass loss of different wood species in civil construction in Brazil.  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