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   8161篇
  免费   145篇
管理学   1172篇
民族学   39篇
人才学   4篇
人口学   735篇
丛书文集   33篇
理论方法论   724篇
综合类   284篇
社会学   3461篇
统计学   1854篇
  2023年   40篇
  2021年   56篇
  2020年   103篇
  2019年   149篇
  2018年   176篇
  2017年   268篇
  2016年   212篇
  2015年   158篇
  2014年   185篇
  2013年   1397篇
  2012年   315篇
  2011年   225篇
  2010年   191篇
  2009年   166篇
  2008年   200篇
  2007年   187篇
  2006年   143篇
  2005年   201篇
  2004年   179篇
  2003年   217篇
  2002年   236篇
  2001年   219篇
  2000年   195篇
  1999年   188篇
  1998年   144篇
  1997年   117篇
  1996年   130篇
  1995年   107篇
  1994年   97篇
  1993年   105篇
  1992年   125篇
  1991年   117篇
  1990年   114篇
  1989年   103篇
  1988年   110篇
  1987年   110篇
  1986年   104篇
  1985年   121篇
  1984年   98篇
  1983年   105篇
  1982年   74篇
  1981年   74篇
  1980年   69篇
  1979年   74篇
  1978年   77篇
  1977年   54篇
  1976年   45篇
  1975年   60篇
  1974年   48篇
  1973年   41篇
排序方式: 共有8306条查询结果,搜索用时 15 毫秒
861.
This article describes a method for reclassifying causes of death in the Netherlands for the period 1875–1992. Two criteria should be met to obtain a useful classification to study the epidemiological transition. First, the categories should be nosologically continuous over the period under study and second, there should be enough detail in causes which are important in the context of the epidemiological transition viz. communicable diseases, non-communicable diseases and external causes of death. A method developed by Vallin and Meslé (1988), which involves ‘dual correspondence tables’ and ‘fundamental associations’, was used to create nosologically continuous categories. These categories were tested for statistical continuity during the transition years of one ICD-revision to the next, using ordinary least squares regression analysis. The reclassification procedure resulted in a nested classification consisting of three levels of refinement of causes of death: 27 causes, 1875–1992; 65 causes, 1901–1992; and 92 causes, 1931–1992. On the basis of this classification, 43% of all deaths in 1875–79 and 98% of all deaths in 1992 could be allocated to either communicable diseases, non-communicable diseases or external causes.  相似文献   
862.
Much recent cultural criticism points out the ways in which “writing about ‘the Other’” perpetuates, justifies and participates in the creation of “real-life” relations of domination and oppression between the “authors” (located in the center(s) of power and knowledge) and their “subject matters.” This paper takes a different approach and explores theliberating potentials of “writing about ‘the Other.’” Completed in the spring of 1991, in the wake of changes in Eastern Europe from the fall of 1989, this paper gives a loose mapping of the nascent Eastern European cultural constellations, as well as an elaboration of the position of a “native” intellectual, in order to circuitously come to the point from which it can articulate the ways in which “Western” writing about “Eastern Europe” can create liberating interventions in the struggles going on in Eastern Europe.  相似文献   
863.
864.
From the literature three types of predictors for factor scores are available. These are characterized by the constraints: linear, linear conditionally unbiased, and linear correlation preserving. Each of these constraints generates a class of predictors. Best predictors are defined in terms of Lowner's partial matrix order applied to matrices of mean square error of prediction. It is shown that within the first two classes a best predictor exists and that it does not exist in the third.  相似文献   
865.
Psychological theories often posit the existence of several different states. Individuals are viewed as belonging to one of the states at a given age, but with development pass to another state. A main problem in evaluating such theories is representing the transition from one state to another over age. A stochastic transition framework is proposed which should be useful in many different settings. The model is illustrated with data from a cognitive development task.  相似文献   
866.
867.
868.
869.
This article proposes and evaluates a method to test for mediation in multilevel data sets formed when an intervention administered to intact groups is designed to produce change in individual mediator and outcome variables. Simulated data of this form were used to compare ordinary least squares (OLS) and two multilevel estimators of the mediated effect. OLS and multilevel standard error approximations were also evaluated and recommendations given for optimal estimator choice. These methods were applied to data from an existing substance use intervention to show the impact multilevel mediation modeling can have on the conclusions drawn from real-world evaluation studies.  相似文献   
870.
This is a case study of gender and earnings in pharmacy--a profession characterized by its rapid recruitment of female practitioners. We try to account for disparities in earnings between male and female pharmacists in Ontario with the aid of human capital theory and gender stratification theory. Data is drawn from a random sample of 463 Ontario pharmacists. We find a consistent sex gap in earnings regardless of occupational level of practitioners (i.e. owner, manager or employee) and net of such factors as hours worked, commitment to work, hours devoted to childcare, absences from the labour market, and years since graduation. Instead, the main reason why women in pharmacy earn less than males is because they remain employees throughout their careers. However, we are less successful at identifying the additional factors responsible for the depressed earnings of female practitioners. We discuss our findings in light of the claims of gender stratification and human capital theory.  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