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   2865篇
  免费   783篇
管理学   722篇
民族学   11篇
人口学   75篇
理论方法论   592篇
综合类   2篇
社会学   1917篇
统计学   329篇
  2023年   5篇
  2022年   2篇
  2021年   68篇
  2020年   142篇
  2019年   306篇
  2018年   132篇
  2017年   217篇
  2016年   263篇
  2015年   264篇
  2014年   247篇
  2013年   384篇
  2012年   201篇
  2011年   192篇
  2010年   164篇
  2009年   123篇
  2008年   168篇
  2007年   108篇
  2006年   132篇
  2005年   93篇
  2004年   100篇
  2003年   87篇
  2002年   58篇
  2001年   67篇
  2000年   53篇
  1999年   12篇
  1998年   5篇
  1997年   3篇
  1996年   7篇
  1995年   2篇
  1994年   7篇
  1993年   9篇
  1992年   4篇
  1991年   5篇
  1990年   2篇
  1989年   7篇
  1988年   6篇
  1987年   1篇
  1986年   1篇
  1972年   1篇
排序方式: 共有3648条查询结果,搜索用时 15 毫秒
941.
The lack of women engaging themselves in science has been thoroughly discussed in feminist and nonfeminist science studies. It has remained a mystery why so few female students take professional careers as scientists. Though more and more female students enroll in physics studies, for example, they seem to disappear before they reach academic positions. Instead of discussing this as a query of gender inequality in this article, I discuss the more general issues of inclusion and exclusion in communities of practices. I argue that selection mechanisms in a group of students can be connected to their premises for engaging themselves in an activity. As students have different embodied experiences, they also have different premises for engaging themselves. What seems like the same practice can, in fact, be analyzed as practices belonging to different activities. This approach might bring us a small step further in the discussions of the relations between gender and science.  相似文献   
942.
In an effort to clarify alternative approaches to organizational analysis, this paper is concerned to stimulate the debate on how an inquiry into organizational phenomena, in general, and organizational learning, in particular, can be accomplished. Encouraging attention to different aspects of various paradigmatic approaches, the paper focuses on critical theory, postmodernism and social constructionism and how these paradigms have contributed and can contribute to the research in the subject domain of organizational learning. To this end, a paradigmatic review of the literature on organizational learning is offered in this paper. Organizational learning, as the study of learning processes of, and within, organizations, has attracted significant attention in academe since the early 1980s. There is a plethora of studies on organizational learning, which offer rich material for a paradigmatic review. This study highlights the need for further development of the field from alternative paradigmatic perspectives, with a view to generating more insights into the multifaceted, complex and changing nature of learning in contemporary organizations.  相似文献   
943.
In this historical review we chart the progress of intuition research over the past eight decades. We highlight the distinction between intuition research in management and intuition research in base disciplines and related fields, and offer a critical commentary on the ways in which the dynamic between these two historical threads has affected progress in the study of intuition in organizations. We conclude by identifying several promising new directions for intuition research, and offer a number of recommendations to intuition researchers in management which may help in taking this topic forward in ways that do not recapitulate previous errors, diversions or digressions.  相似文献   
944.
In this study, a variance‐based global sensitivity analysis method was first applied to a contamination assessment model of Listeria monocytogenes in cold smoked vacuum packed salmon at consumption. The impact of the choice of the modeling approach (populational or cellular) of the primary and secondary models as well as the effect of their associated input factors on the final contamination level was investigated. Results provided a subset of important factors, including the food water activity, its storage temperature, and duration in the domestic refrigerator. A refined sensitivity analysis was then performed to rank the important factors, tested over narrower ranges of variation corresponding to their current distributions, using three techniques: ANOVA, Spearman correlation coefficient, and partial least squares regression. Finally, the refined sensitivity analysis was used to rank the important factors.  相似文献   
945.
Despite underlying regularities in the age profile of migration, there is mounting evidence of cross‐national variations in the ages at which migration occurs. Explanations for these differences have variously been sought by reference to cultural, social, and economic factors, and through analysis of reasons for moving. There is also a growing body of work linking migration events to particular transitions in the life course. We set out a conceptual framework that links contextual factors to the age structure of migration through life‐course transitions that act as proximate determinants of the age at migration. We propose metrics to capture the prevalence, timing, and spread of four key life‐course transitions: education completion, labor force entry, union formation, and first childbearing. We then seek to quantitatively establish the link between these indicators and the age and intensity of internal migration at its peak for a global sample of 27 countries. Correlation and factor analysis reveal substantial diversity in the timing and spread of transitions to adult roles, and show that cross‐national differences in the age profile of migration closely parallel variations in the age structure of the life course for over two‐thirds of countries. Migration age profiles are aligned with transitions to adulthood for both sexes but most strongly among women.  相似文献   
946.
947.
Recently, numerous cases of dermatitis induced by dimethylfumarate (DMFu) have been reported in Europe. DMFu has been used to prevent mold development in various items, although it is not registered as a biocide. In France, from October 2008 to December 2009, more than 100 cases were reported. Despite a ban on articles containing DMFu and the removal of potentially contaminated products, some people were still suffering from dermatitis or other health problems. The French Agency for Food, Environmental and Occupational Health & Safety was mandated to assess whether the existence in the past of DMFu‐contaminated items in dwellings could continue to pose a threat to the health of inhabitants. A risk assessment was performed based on the classical risk analysis approach for environmental contaminants. Hazard assessment of DMFu with regard to its sensitizing properties was performed, based on human case reports collected in France between January 2009 and February 2010. For around half of the 132 individual cases reported, the causal link to DMFu was considered at least probable. An Organisation for Economic Co‐Operation and Development (OECD) local lymph node assay performed in a study on mice showed strong sensitizing potential for DMFu. Exposure was assessed by measuring DMFu in items sampled in preselected dwellings. These investigations demonstrated that DMFu exposure can persist after removal of the primary contaminated items. We therefore concluded that there was clearly a risk of skin reactions in patients previously sensitized to DMFu. Furthermore, the available data do not support the existence of significant health effects through the respiratory route.  相似文献   
948.
The 2005 Canada‐wide legalization of same‐sex marriage provided same‐sex couples with access to an institution they had previous been excluded from. Yet not all couples choose to marry. In this paper, we examine why this is the case, considering the role of personal, political, and historical factors. We draw on 22 interviews with people in common‐law same‐sex relationships in Toronto to examine how they understand their relationship within the new context of marriage equality. We find that participants feel they are held accountable to marriage as a default relationship legitimacy norm, indicating that this new institutional access is accompanied by a set of social expectations. Despite their awareness of the need to navigate a social context favoring marriage, participants individualize their relationship decisions as personal rather than political. Participants often contradict themselves as they articulate what marriage means to them, suggesting that, in this period of legal and social transition, people are negotiating multiple meanings, societal messages, and traditions when it comes to making sense of their relationship. We discuss the implications of these findings for LGBQ activism and the framing of sexuality‐based inequalities in Canadian society.  相似文献   
949.
This study reviews theories on striving for closure in adolescent networks related to trust issues of adolescents and further examines whether adolescents in mixed‐gender and single‐gender classes are different in striving for closure. Stochastic actor‐based models for network dynamics are applied to test our hypotheses based on longitudinal friendship nominations of 406 Taiwanese adolescents in mixed‐gender, all‐boy, and all‐girl classes. The results show that adolescents strive for closure through connections of friends' friends. Further, the results reveal that while the tendency toward closure is stronger for girls in mixed‐gender classes, such tendency toward closure is stronger in all‐boy classes than in all‐girl classes. Testing effects between types of classes supports the indications of variances in striving closure.  相似文献   
950.
This article examines the quantitative interrelations between sectoral composition of public spending and equilibrium (in)determinacy in a two‐sector real business cycle model with positive productive externalities in investment. When government purchases of consumption and investment goods are set as constant fractions of their respective sectoral output, we show that the public‐consumption share plays no role in the model's local dynamics, and that a sufficiently high public‐investment share can stabilize the economy against endogenous belief‐driven cyclical fluctuations. When each type of government spending is postulated as a constant proportion of the economy's total output, we find that there exists a trade‐off between public consumption versus investment expenditures to yield saddle‐path stability and equilibrium uniqueness. (JEL E32, E62, O41)  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