全文获取类型
收费全文 | 18548篇 |
免费 | 326篇 |
专业分类
管理学 | 2180篇 |
民族学 | 101篇 |
人才学 | 6篇 |
人口学 | 1730篇 |
丛书文集 | 106篇 |
教育普及 | 2篇 |
理论方法论 | 1708篇 |
现状及发展 | 1篇 |
综合类 | 234篇 |
社会学 | 9223篇 |
统计学 | 3583篇 |
出版年
2023年 | 91篇 |
2022年 | 77篇 |
2021年 | 92篇 |
2020年 | 281篇 |
2019年 | 453篇 |
2018年 | 455篇 |
2017年 | 635篇 |
2016年 | 448篇 |
2015年 | 352篇 |
2014年 | 429篇 |
2013年 | 3112篇 |
2012年 | 650篇 |
2011年 | 570篇 |
2010年 | 457篇 |
2009年 | 431篇 |
2008年 | 493篇 |
2007年 | 498篇 |
2006年 | 456篇 |
2005年 | 414篇 |
2004年 | 411篇 |
2003年 | 383篇 |
2002年 | 386篇 |
2001年 | 464篇 |
2000年 | 383篇 |
1999年 | 375篇 |
1998年 | 310篇 |
1997年 | 282篇 |
1996年 | 287篇 |
1995年 | 277篇 |
1994年 | 264篇 |
1993年 | 254篇 |
1992年 | 292篇 |
1991年 | 291篇 |
1990年 | 258篇 |
1989年 | 261篇 |
1988年 | 246篇 |
1987年 | 231篇 |
1986年 | 220篇 |
1985年 | 250篇 |
1984年 | 238篇 |
1983年 | 236篇 |
1982年 | 182篇 |
1981年 | 155篇 |
1980年 | 174篇 |
1979年 | 171篇 |
1978年 | 143篇 |
1977年 | 146篇 |
1976年 | 123篇 |
1975年 | 120篇 |
1974年 | 102篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
993.
994.
995.
996.
Using the LISREL maximum-likelihood program, the relation between Bradburn's positive affect and negative affect scales is examined for three age groups of adults. It is found that (a) unequal item loadings fit significantly better than equal item loadings; (b) the best-fitting loadings for the elderly are significantly different from those of the non-elderly; (c) the positive and negative affect scales are substantially correlated and (d) correlations with related variables are stronger when positive and negative affect scales are formed by maximum-likelihood loadings rather than by unit loadings. Given the widespread use of Bradburn's scales, implications of these results for subjective well-being are discussed. 相似文献
997.
998.
Philip A. Schrodt 《The American Sociologist》1988,19(1):71-85
During the past five years, models and techniques developed in artificial intelligence (AI) have been applied to a wide variety
of topics in international relations (IR). These applications build on a theoretical base established at MIT during the 1970s,
and the expansion of the applications reflects both changes in AI research and limitations of alternative models such as statistical
modeling and rational choice approaches. Current applications in IR/AI tend to fall into three categories. First, there have
been extensive applications of if-then rules in expert systems and simulations. Second, many models emphasize the role of
historical precedent in IR decision making. Third, a variety of approaches employing natural language are under development.
These AI techniques have extended considerably the range and complexity of formal models of international behavior.
He has spent the past four years working on applications of artificial intelligence to the problem of making short-term predictions
of international behavior. He is author ofMicrocomputer Methods for Social Scientists (Sage 1987) and numerous articles on mathematical modeling. 相似文献
999.
Candyce S. Russell Raymond B. Atilano Stephan A. Anderson Anthony P. Jurich Lois Paff Bergen 《Journal of marital and family therapy》1984,10(3):241-251
A pre-defined list of family therapy intervention strategies was used to predict post-therapy perceived life happiness and marital happiness among husbands and wives. Clients presented with both child and marriage-focused problems. The data were analyzed separately for husbands and wives. In general, favorable outcome for husbands was associated with active restructuring operations on the part of the therapist. Prediction of outcome for wives was less clear. However, wives did appear to respond favorably to less active interventions such as actualizing transactional patterns and reframing. 相似文献
1000.
Thomas A. Martens 《Nonprofit management & leadership》1996,7(2):181-192
This article reports on a study of the newsworthiness of information about nonprofit organizations and issues. The two-part study included content analysis of news stories in the 1991 editions of the San Francisco Chronicle and interview with editors and reporters at the paper. 相似文献