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   799篇
  免费   25篇
管理学   151篇
民族学   4篇
人口学   62篇
丛书文集   7篇
理论方法论   86篇
综合类   8篇
社会学   397篇
统计学   109篇
  2023年   8篇
  2021年   4篇
  2020年   15篇
  2019年   5篇
  2018年   11篇
  2017年   17篇
  2016年   10篇
  2015年   14篇
  2014年   19篇
  2013年   226篇
  2012年   24篇
  2011年   20篇
  2010年   19篇
  2009年   26篇
  2008年   25篇
  2007年   17篇
  2006年   17篇
  2005年   22篇
  2004年   22篇
  2003年   8篇
  2002年   14篇
  2001年   21篇
  2000年   16篇
  1999年   12篇
  1998年   11篇
  1997年   16篇
  1996年   13篇
  1995年   4篇
  1994年   12篇
  1993年   9篇
  1992年   11篇
  1991年   14篇
  1990年   12篇
  1989年   5篇
  1988年   9篇
  1987年   11篇
  1986年   16篇
  1985年   5篇
  1984年   5篇
  1983年   7篇
  1982年   8篇
  1980年   9篇
  1979年   6篇
  1978年   8篇
  1977年   6篇
  1976年   4篇
  1975年   5篇
  1970年   3篇
  1969年   4篇
  1963年   3篇
排序方式: 共有824条查询结果,搜索用时 328 毫秒
171.
In this essay the George Foster Peabody Collection and the WSB Atlanta Television News Archive are described. A discussion of the form, structure and content of the collections reveal that each are ideally suited to visual sociological investigation. In all, the textual body of visual imagery found in the Peabody collection is an important source for the study of culture. The collection offers access to fifty years of award winning audio and video recordings, spanning news, documentary, international, entertainment, public service and childrens program submissions, the WSB collection contains a rich array of materials that service to elaborate on a cultural and historic framework of the new and old south. Hard news stories along with documentaries reveal a variety of public and social rituals of historic importance, the WSB and Peabody collections can be accessed to fulfil a number of scholarly endeavors. Visual sociologists, anthropologists and communication scholars are encouraged to further explore the use of these two electronic media archives.  相似文献   
172.
Blue of estimable linear functions and exact tests of hypotheses concerning such functions usually do not exist in the covariance model with random factors having unknown variances. This is true even in the equal subclass numbers case. This paper suggests alternative methods for finding linear unbiased estimators and presents methods for computing sampling variances which are linear functions of the unknown parameter variances. Also, higher level covariates are defined and nonestimability problems resulting from association of such covariates with fixed factors are discussed.  相似文献   
173.
It is well known, that there is a relationship between the level of development of a society and its level offertility.1 However, it is not clear which of the complex ofvariables associated with development are primarily associated with the reduction of fertility. Urbanization, female labour force participation and education are three of the variables most commonly cited as bearing a causal relationship to fertility. Urbanization implies a change of environment of a substantial portion of the population which may result in a change in the value placed on large families. This is particularly true when urban mortality is lower than rural, so that more children survive.2 However, it has also been argued that urbanization results in a change in family structure from the extended to the nuclear family with a concomitant reduction in the value placed on having many children.3 Additional changes in family patterns which are sometimes said to explain fertility reduction due to urbanization are increases in the proportion of women never marrying and increases in the age at marriage.  相似文献   
174.
This article measures the efficacy of two approaches to teaching students to assess clients for substance abuse: an alcohol and other drug (AOD) minor program and integration of AOD content into core courses. A quasi-experimental design involved nonrandom assignment to an AOD minors program or to a nonminors curriculum. Both groups reported on their usual AOD assessment and on AOD assessment in their first interview with their most recent client. Self-report outcomes, examined in relation to the number of courses with integrated AOD content taken, suggest that these courses lead to significantly more self-reported assessment for substance abuse.  相似文献   
175.
In this article, the authors present a condensed version of the Marriage and Family Therapy Core Competencies (MFT-CC), collapsing the original 128 MFT-CC to 16 using a qualitative research method. Educators, supervisors, and researchers can more easily and efficiently use the condensed MFT-CC to measure student and supervisee learning for accreditation and training. The 16 Condensed MFT-CC are mapped to the original MFT-CC, COAMFTE's Version 12 Foundational Curriculum Areas and the Association for Marital and Family Therapy Regulatory Boards 6 domains upon which the national exam is predicated.  相似文献   
176.
177.
178.
The theme of one of the plenary sessions held at the 1998 annual meeting of the Society for Risk Analysis, 'Assessing and Managing Risks in a Democratic Society,' was chosen to reflect the current debate about the best ways to integrate social, political, economic, and technical issues into fair risk management decisions. In the papers presented here, the three plenary speakers provide their perspectives on how environmental risk management decision making is—or should be—informed by democratic processes.
John D. Graham Making Sense of Risk
Robert F. Kennedy, Jr. Risk, Democracy, and the Environment
Jason Shogren Markets to Master Health and Environmental Risk
Audience Questions and Answers  相似文献   
179.
180.
Variance (or standard deviation) of return is widely used as a measure of risk in financial investment risk analysis applications, where mean‐variance analysis is applied to calculate efficient frontiers and undominated portfolios. Why, then, do health, safety, and environmental (HS&E) and reliability engineering risk analysts insist on defining risk more flexibly, as being determined by probabilities and consequences, rather than simply by variances? This note suggests an answer by providing a simple proof that mean‐variance decision making violates the principle that a rational decisionmaker should prefer higher to lower probabilities of receiving a fixed gain, all else being equal. Indeed, simply hypothesizing a continuous increasing indifference curve for mean‐variance combinations at the origin is enough to imply that a decisionmaker must find unacceptable some prospects that offer a positive probability of gain and zero probability of loss. Unlike some previous analyses of limitations of variance as a risk metric, this expository note uses only simple mathematics and does not require the additional framework of von Neumann Morgenstern utility 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