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   2001篇
  免费   54篇
管理学   287篇
民族学   13篇
人才学   1篇
人口学   190篇
丛书文集   4篇
理论方法论   244篇
综合类   20篇
社会学   1019篇
统计学   277篇
  2023年   17篇
  2022年   8篇
  2021年   21篇
  2020年   36篇
  2019年   57篇
  2018年   47篇
  2017年   73篇
  2016年   83篇
  2015年   52篇
  2014年   50篇
  2013年   269篇
  2012年   97篇
  2011年   85篇
  2010年   62篇
  2009年   66篇
  2008年   63篇
  2007年   92篇
  2006年   77篇
  2005年   68篇
  2004年   71篇
  2003年   62篇
  2002年   52篇
  2001年   54篇
  2000年   43篇
  1999年   49篇
  1998年   30篇
  1997年   19篇
  1996年   29篇
  1995年   20篇
  1994年   26篇
  1993年   14篇
  1992年   26篇
  1991年   19篇
  1990年   17篇
  1989年   16篇
  1988年   16篇
  1987年   10篇
  1986年   17篇
  1985年   14篇
  1984年   11篇
  1983年   15篇
  1982年   14篇
  1981年   8篇
  1980年   12篇
  1979年   18篇
  1978年   9篇
  1976年   5篇
  1975年   4篇
  1974年   6篇
  1964年   3篇
排序方式: 共有2055条查询结果,搜索用时 78 毫秒
31.
32.
A perennial problem when political decisions are to be implementedis how to make authorities work together. Previous researchshows that resource interdependence, goal congruence, and mutualtrust increase interorganizational cooperation. In this article,it is argued that interaction effects must also be consideredin order to fully understand how these variables affect cooperation.The study is based on 203 dyads of Swedish Public EmploymentService offices and municipalities in 2003. I find that mutualtrust is necessary if goal congruence is to increase cooperationbetween these agencies. Furthermore, mutual trust only has apositive effect if organizations have similar objectives. However,trust is not required for resource interdependence to affectcooperation, and the effect of trust is not dependent on theorganizations' mutual dependence. The results imply that trustand goal congruence must exist simultaneously in order to promotejoint actions. Thus, if a management strategy aimed at increasingcooperation only focuses on the organizations' objectives orthe level of trust between them, it will fail. An importantlesson for future research is that including interaction termsin the analysis improves our understanding of interorganizationalcooperation.  相似文献   
33.
This study examined the emergence of affect specificity in infancy. In this study, infants received verbal and facial signals of 2 different, negatively valenced emotions (fear and sadness) as well as neutral affect via a television monitor to determine if they could make qualitative distinctions among emotions of the same valence. Twenty 12‐ to 14‐month‐olds and 20 16‐ to 18‐month‐olds were examined. Results suggested that younger infants showed no evidence of referential specificity, as they responded similarly to both the target and distracter toys, and showed no evidence of affect specificity, showing no difference in play between affect conditions. Older infants, in contrast, showed evidence both of referential and affect specificity. With respect to affect specificity, 16‐ to 18‐month‐olds touched the target toy less in the fear condition than in the sad condition and showed a larger proportion of negative facial expressions in the sad condition versus the fear condition. These findings suggest a developmental emergence after 15 months of age for affect specificity in relating emotional messages to objects.  相似文献   
34.
35.
Large philanthropic foundations such as those which first developed in the United States in the late nineteenth and early twentieth century had four characteristics: (a) the aim of contributing to the public good; (b) applying science and scientific method to human affairs, interpreting science broadly; (c) using great wealth to pursue these purposes; and (d) seeking public recognition of their charitable status in doing so. Between 1870 and 1930 the large foundation emerged as a major social institution, and under the influence of their officers began to be major patrons of applied social science for public policy purposes. Critics of foundations have charged that they were private bodies without external accountability; they were secretive, undemocratic, unrepresentative and indeed pillars of the ruling class. Nevertheless, foundations have exercised a disproportionate influence upon public policy research and have sought to apply fundamental knowledge to tackling social problems. They represent the institutionalisation of knowledge-based social engineering.  相似文献   
36.
37.
Standard algorithms for the construction of iterated bootstrap confidence intervals are computationally very demanding, requiring nested levels of bootstrap resampling. We propose an alternative approach to constructing double bootstrap confidence intervals that involves replacing the inner level of resampling by an analytical approximation. This approximation is based on saddlepoint methods and a tail probability approximation of DiCiccio and Martin (1991). Our technique significantly reduces the computational expense of iterated bootstrap calculations. A formal algorithm for the construction of our approximate iterated bootstrap confidence intervals is presented, and some crucial practical issues arising in its implementation are discussed. Our procedure is illustrated in the case of constructing confidence intervals for ratios of means using both real and simulated data. We repeat an experiment of Schenker (1985) involving the construction of bootstrap confidence intervals for a variance and demonstrate that our technique makes feasible the construction of accurate bootstrap confidence intervals in that context. Finally, we investigate the use of our technique in a more complex setting, that of constructing confidence intervals for a correlation coefficient.  相似文献   
38.
Some statistical models defined in terms of a generating stochastic mechanism have intractable distribution theory, which renders parameter estimation difficult. However, a Monte Carlo estimate of the log-likelihood surface for such a model can be obtained via computation of nonparametric density estimates from simulated realizations of the model. Unfortunately, the bias inherent in density estimation can cause bias in the resulting log-likelihood estimate that alters the location of its maximizer. In this paper a methodology for radically reducing this bias is developed for models with an additive error component. An illustrative example involving a stochastic model of molecular fragmentation and measurement is given.  相似文献   
39.
A computer simulation game designed to give students insights into family time use concepts has been used in an introductory family resource management class at Ohio State University and other universities. The game allows for planning for time use changes over the family life cycle. The game can give students insights into economic and sociological models of time use. It is possible that future versions of the game could be used in family counseling.His research interests include derivation of optimal decision-making rules for families and family financial management.Her research interests include financial management over the life course including financial ratios, baby boomers, and retirement. She received her Ph.D. in 1993 from The Ohio State University in Family Resource Management.His research interests include the time trade-offs made between couples, financial planning over the life cycle, and the interaction of time and money between families and their home-based businesses. He received his Ph.D. in 1993 from The Ohio State University in Family Resource Management.  相似文献   
40.
How do firm-specific, demand-related factors influence the relationship between intra-industry diversification (IID) and performance? Recent findings regarding the performance effects of IID depict a complex picture with curvilinear relationships and several contingencies. However, firm-specific contingencies on the demand side have remained unexplored. We analyze how IID relates to firm performance (market share) in the German automotive industry using panel data between 1999 and 2008. We specifically focus on a firm's high-quality brand image as a demand-side contingency. We find support for our hypotheses of complex curvilinear relationships as well as for moderating effects of brand quality. Our results have significant theoretical implications for the IID literature.  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