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   381篇
  免费   10篇
管理学   41篇
民族学   3篇
人口学   36篇
丛书文集   1篇
理论方法论   55篇
综合类   3篇
社会学   191篇
统计学   61篇
  2023年   2篇
  2022年   1篇
  2021年   1篇
  2020年   4篇
  2019年   6篇
  2018年   8篇
  2017年   17篇
  2016年   16篇
  2015年   8篇
  2014年   19篇
  2013年   76篇
  2012年   16篇
  2011年   15篇
  2010年   15篇
  2009年   8篇
  2008年   19篇
  2007年   15篇
  2006年   13篇
  2005年   12篇
  2004年   12篇
  2003年   7篇
  2002年   10篇
  2001年   5篇
  2000年   6篇
  1999年   10篇
  1998年   7篇
  1997年   5篇
  1996年   4篇
  1995年   2篇
  1994年   4篇
  1993年   6篇
  1992年   1篇
  1991年   3篇
  1990年   3篇
  1989年   4篇
  1988年   4篇
  1987年   5篇
  1986年   1篇
  1984年   3篇
  1983年   1篇
  1981年   4篇
  1980年   1篇
  1979年   2篇
  1978年   3篇
  1977年   1篇
  1976年   2篇
  1974年   1篇
  1972年   1篇
  1970年   1篇
  1967年   1篇
排序方式: 共有391条查询结果,搜索用时 15 毫秒
281.
Although differential ranking in science is not readily visible to lay observers, American science is, in fact, sharply graded. Rewards and facilities for research are concentrated among relatively few investigators and organizations. This distinctive pattern of stratification, at odds with the egalitarian ethos of science, is not solely attributable to the distribution of talent in the scientific community. There is however a high correlation between assessed contributions to science and investigators' scientific standing. The present pattern of stratification is the outcome of processes of allocation of men and resources among various sectors of science which include selective recruitment and socialization of young investigators, differential access to publication and research facilities, and differential recognition of scientists' contributions through citations to their work and honorific awards. In a time when the legitimacy of reward systems in many social institutions is routinely challenged, scientists are apt to accept their own as just and correct.  相似文献   
282.
On the basis of data from draft protesters to the Vietnam War it is suggested that an actively pursued and morally enhancing identity is the “pay off” of some deviant acts. These qualities of such deviance, called virtuous deviance, play havoc with labelling theory's passivity and character-degrading assumptions. The study of such acts may be called a sociology of virtue. A distinction between two kinds of protesters (refusers and resisters), which reflects different commitments to risk, suggests guiding hypotheses for that study: From the point of view of the actor, virtue may be self-constructed and autonomously implemented. Yet, escalations of commitment to virtue may require interpersonal corroboration and support. From the point of view of the normative order, such acts firm up moral boundaries, defining what it means to be moral.  相似文献   
283.
284.
285.
Earlier results by the authors are used to provide the intrablock analysis for row-column designs that have observations at nodes of the row-column lattice, the design being structurally incomplete when some nodes are empty. Construction, properties, and intrablock analyses of some special b× b row-column designs with b empty nodes taken along the principal diagonal of the lattice are developed. The designs discussed have m > 1 associate classes and are said to be partially variance balanced. The special designs fall in two classes and are shown to be nearly optimal in a specified class of designs. A small catalog of designs constructed is provided and they should be useful when empty nodes do not represent wasted experimental units, perhaps because the row and column assignments of treatments are sequenced.  相似文献   
286.
Slave prices rose rapidly to historic highs in the late‐antebellum South. The boom in railroad construction in the South helps explain this large increase in slave prices. The economic connection between railroads and slave prices reconciles the views of traditional economic historians who thought slavery was economically irrational and the views of the new economic historians who have concluded that slavery was highly profitable. It was the massive public subsidies to railroads that explain it was public policy that provided the stimulant to slave prices, not the “peculiar” culture of the antebellum South or the planter efficient management of slave labor.  相似文献   
287.
In order to evaluate the impact upon children and families of reported child abuse and neglect and the subsequent interventions, the casenotes of a random sample of substantiated cases (N=151) dealt with by the South Australian child protection agency were searched. The goal was to identify information concerning service delivery and changes for family members in the ensuing six months. Results relevant to both of these are presented and evaluated. An important corollary finding of this work was the absence of detailed information about outcome in the casenotes. We argue that this absence of feedback to child protection workers and policy-makers is likely to have detrimental effects on both worker morale and the quality of the services provided.  相似文献   
288.
The Data Protection Act 1998 and Research Governance Frameworkfor Health and Social Care (Department of Health, 2003a) havebrought consideration of ethical issues in the conduct of researchinto sharper focus. This paper, based primarily on the authors’experiences of conducting research on children in need and outcomesfor vulnerable children, examines the impact these changes havehad on the research process. The difficulties experienced byresearchers in gaining access to research participants in orderto develop evidence-based policy and practice are explored.Finally, the paper outlines some practical steps that can betaken to facilitate the effective conduct of research.  相似文献   
289.
The purpose of this study was to use rigorous systematic review methods to summarize the effectiveness of interventions for elder abuse. Only eight studies met our inclusion criteria. Evidence regarding the recurrence of abuse following intervention was limited, but the interventions for which this outcome was reported failed to reduce, and may have even increased, the likelihood of recurrence. Elder abuse interventions had no significant effect on case resolution and at-risk caregiver outcomes, and had mixed results regarding professional knowledge and behavior related to elder abuse. The included studies had important methodological limitations that limit our ability to draw conclusions about the effectiveness of these interventions.  相似文献   
290.
There are generally three stages to the development of rules for matching vital events data from two sources covering the same population: (a) establishing a set of “true” matches and nonmatches; (b) determining the best tolerance limits for each single characteristic which might be used in matching; and (c) experimenting to determine the set or sets of characteristics and the weights to be used in classifying a pair of records as matched or nonmatched. Specific examples, based on early matching experiments with data from the dual record system of the Mindanao Center for Population Studies (MCPS), are presented. Successive application of different sets of characteristics (differential valence rule) to the remaining unmatched events produced an acceptable rule for matching in this study.  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