全文获取类型
收费全文 | 19643篇 |
免费 | 364篇 |
国内免费 | 1篇 |
专业分类
管理学 | 2816篇 |
民族学 | 79篇 |
人才学 | 1篇 |
人口学 | 1898篇 |
丛书文集 | 79篇 |
教育普及 | 2篇 |
理论方法论 | 1765篇 |
现状及发展 | 1篇 |
综合类 | 261篇 |
社会学 | 9550篇 |
统计学 | 3556篇 |
出版年
2021年 | 115篇 |
2020年 | 289篇 |
2019年 | 386篇 |
2018年 | 450篇 |
2017年 | 622篇 |
2016年 | 484篇 |
2015年 | 360篇 |
2014年 | 473篇 |
2013年 | 3059篇 |
2012年 | 645篇 |
2011年 | 619篇 |
2010年 | 458篇 |
2009年 | 377篇 |
2008年 | 452篇 |
2007年 | 465篇 |
2006年 | 464篇 |
2005年 | 445篇 |
2004年 | 410篇 |
2003年 | 384篇 |
2002年 | 431篇 |
2001年 | 533篇 |
2000年 | 539篇 |
1999年 | 471篇 |
1998年 | 356篇 |
1997年 | 314篇 |
1996年 | 322篇 |
1995年 | 307篇 |
1994年 | 285篇 |
1993年 | 297篇 |
1992年 | 344篇 |
1991年 | 319篇 |
1990年 | 288篇 |
1989年 | 292篇 |
1988年 | 291篇 |
1987年 | 250篇 |
1986年 | 245篇 |
1985年 | 281篇 |
1984年 | 270篇 |
1983年 | 255篇 |
1982年 | 217篇 |
1981年 | 181篇 |
1980年 | 167篇 |
1979年 | 197篇 |
1978年 | 181篇 |
1977年 | 160篇 |
1976年 | 137篇 |
1975年 | 160篇 |
1974年 | 121篇 |
1973年 | 116篇 |
1972年 | 93篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
361.
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
362.
363.
The utility of conventional project management techniques, such as PERT and CPM, is hampered by significant and realistic network attributes and managerial considerations. There are many situations which involve more than one project and numerous resources. Of major concern in such situations is the reduction of the maximum quantity of each required resource. The algorithm presented here is capable of scheduling the individual activities in multiple projects with multiple resources and leveling the overall quantity of each resource which is required. The basis of the algorithm is a sequencing procedure for examining various combinations of activity start times. The measure of effectiveness for each combination is the sum of the squares of the required quantity of each resource in each time period. 相似文献
364.
本文介绍了蒙古尔部族的组成、形成和发展,并对其族长、土司的特点和承继作了详尽的描述。本文介绍了蒙古尔部族的组成、形成和发展,并对其族长、土司的特点和承继作了详尽的描述。 相似文献
365.
本文对蒙古尔部族的组成、形成和发展作了介绍,其中对族长、土司的特点和承继作了详尽的描述。 相似文献
366.
The present empirical study applies the methodology of information theory to the problem of assessing and separating capital market risk, which is separated into its systematic and unsystematic components. Monthly return relatives for all securities traded on the New York Stock Exchange are examined for the period 1926 to 1971, which is segmented into six 7-year subperiods. The securities are combined into portfolios of various sizes and ranked. It is concluded that although both systematic and unsystematic risks have increased over the 45-year interval—particularly between the pre-1940 and post-1940 periods—they have maintained their relative share of the total risk over the same period. 相似文献
367.
This paper reports the results of three studies conducted to develop, refine, and validate a scale which assessed heterosexual adults' attitudes toward same-sex marriage, the Attitude Toward Same-Sex Marriage Scale (ASSMS). The need for such a scale is evidenced in the increasing importance of same-sex marriage in the political arena of the United States and other nations, as well as the growing body of empirical research examining same-sex marriage and related issues (e.g., Lannutti, 2005; Solomon, Rothblum, & Balsam, 2004). The results demonstrate strong reliability, convergent validity, and predictive validity for the ASSMS and suggest that the ASSMS may be adapted to measure attitudes toward civil unions and other forms of relational recognition for same-sex couples. Gender comparisons using the validated scale showed that in college and non-college samples, women had a significantly more positive attitude toward same-sex marriage than did men. 相似文献
368.
369.
After mindfulness is defined, a brief history of the research on the topic to date is reviewed. This work essentially falls into three categories: health, business, and education. Considerations of mindlessness as a social issue are then addressed. A brief introduction to the articles in this issue follows. These articles speak to mindfulness as it relates to potential solutions to social problems. 相似文献
370.
We consider some of the ways in which mindfulness theory can provide new solutions to current problems and address potential future problems that may result from changes in demographics and technology. Specific research questions are suggested to see how increasing mindfulness and decreasing mindlessnesscan work to diminish these social problems as they occur specifically in the classroom, the workplace, and the social predicament of getting old. We discuss (a) recasting some of the problems of the elderly into problems of perspective about the elderly, (b) mindful ways of dealing with increased ethnic diversity, (c) differentiating between changing the workplace work and changing the character of the work itself and (d) the advantages and ways of increasingmindfulness in the classroom. 相似文献