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   361篇
  免费   15篇
管理学   86篇
民族学   8篇
人口学   17篇
丛书文集   3篇
理论方法论   44篇
综合类   3篇
社会学   162篇
统计学   53篇
  2023年   4篇
  2021年   3篇
  2020年   1篇
  2019年   12篇
  2018年   5篇
  2017年   23篇
  2016年   17篇
  2015年   23篇
  2014年   20篇
  2013年   61篇
  2012年   16篇
  2011年   13篇
  2010年   9篇
  2009年   10篇
  2008年   8篇
  2007年   12篇
  2006年   13篇
  2005年   13篇
  2004年   10篇
  2003年   8篇
  2002年   16篇
  2001年   15篇
  2000年   4篇
  1999年   3篇
  1998年   4篇
  1997年   6篇
  1996年   3篇
  1995年   1篇
  1994年   6篇
  1993年   5篇
  1992年   2篇
  1991年   2篇
  1990年   1篇
  1989年   1篇
  1988年   3篇
  1987年   3篇
  1986年   4篇
  1985年   1篇
  1984年   4篇
  1983年   2篇
  1982年   1篇
  1980年   2篇
  1979年   2篇
  1978年   1篇
  1976年   2篇
  1968年   1篇
排序方式: 共有376条查询结果,搜索用时 0 毫秒
321.
322.
In the industry with radical technology push or rapidly changing customer preference, it is firms' common wisdom to introduce high‐end product first, and follow by low‐end product‐line extensions. A key decision in this “down‐market stretch” strategy is the introduction time. High inventory cost is pervasive in such industries, but its impact has long been ignored during the presale planning stage. This study takes a first step toward filling this gap. We propose an integrated inventory (supply) and diffusion (demand) framework and analyze how inventory cost influences the introduction timing of product‐line extensions, considering substitution effect among successive generations. We show that under low inventory cost or frequent replenishment ordering policy, the optimal introduction time indeed follows the well‐known “now or never” rule. However, sequential introduction becomes optimal as the inventory holding gets more substantial or the product life cycle gets shorter. The optimal introduction timing can increase or decrease with the inventory cost depending on the marketplace setting, requiring a careful analysis.  相似文献   
323.
Probability of guilt is not the criterion on which a verdict in a criminal trial should be based, says Tony Gardner-Medwin . The courts, quite sensibly, do not even allow access to some of the background evidence on which a proper assessment of this probability should be made. He argues that a more satisfactory criterion is the probability, or degree of belief, that the evidence could have arisen without guilt.  相似文献   
324.
When the conflict in Northern Ireland erupted over 30 years ago many voiced concern at the implications for children and young people. In the early years many looked to U.S. experience in order to frame questions, problems, and solutions. This article examines the strands of psychological research that developed and their link to the articles in the present collection. The article critiques the consensus among psychologists in the 1970s and 1980s that young people coped reasonably well in difficult circumstances. One theme of the current collection is to highlight the difficulties of dealing with the legacies of the past thirty years and hence the constraints facing the attempt to establish a peaceful and settled society.  相似文献   
325.
The proposed doubling of aid to Africa by 2010 is a less simple proposition, from a recipient point of view, than is commonly supposed. This article argues that it is difficult to manage large and rapidly increasing aid inflows in ways which do not disadvantage producers of tradeable goods, and the private sector generally. This difficulty can be averted if conscious efforts are made to offset it and to stimulate positive responses from the supply side. Whether such responses prevail over the shorter‐term management difficulties depends on the efficacy of state actions — and of aid — to bolster the supply side. The outcome is likely to be mixed, depending on country circumstances.  相似文献   
326.
Appreciative Inquiry and Public Dialogue: An Approach to Community Change   总被引:3,自引:1,他引:2  
This paper will demonstrate the contribution of Appreciative Inquiry (AI) to whole system change in the public and non-profit sectors through elucidation of the theory, method, and examples of the successful application of this approach. Developed in the mid 1980s by David Cooperrider and his colleagues at Case Western Reserve University, AI begins with the discovery of the highest achievements, core values, and aspirations embedded in all human systems. It is a methodology that begins a dialogue between individuals, expands to groups and builds to embrace and declare community wide intentions and actions. The theory of social constructionism informs this work asserting that individuals in relationship with one another can and will co-create an effective future when a positive inquiry into the heart and soul of a system, its greatest accomplishments and deepest values, generates new meaning and inspires new possibilities. Deceptively simple, the system is based on a reversal of the expectations, practices, and limitations found in traditional problem solving methodologies and thus represents a significant shift in attitude and language.  相似文献   
327.
From the Editors     
  相似文献   
328.
The goal of this study was to examine the efficacy of minimal treatment interventions for concerned significant others (CSOs) of problem gamblers. One hundred and eighty-six participants (82% females, 56% spouses) were randomly assigned to one of three groups: the first minimal intervention group received a self-help workbook [based on behavioral principles, modified from the Community Reinforcement and Family Therapy (CRAFT) model] and the second minimal intervention group received the workbook plus telephone support. The control condition received a treatment resource information package. Overall, all participants reported significant improvement in personal and relationship functioning and gambling behavior and consequences at the 3- and 6-month follow-up. The data demonstrated differences in favor of the interventions in three areas: days gambling, satisfaction with the program, and number who had their needs met. There was no difference in the number who had entered treatment. It may be that CSOs require more guidance and follow-up support to achieve these goals using the CRAFT procedures and strategies.  相似文献   
329.
We investigated how often young adults worry about race relationsand whether they perceive that white/black relations have beendeteriorating. We also explored the relationships betweenrace-related worry and pessimism, and subjective well-being. This study addressed the distribution of race-related worry andpessimism, and their relationship to subjective well-being innational probability samples of high school seniors completingself-administered questionnaires in 1996 and 1997 (n = 4,514). Nearly one-third of high school seniors often worry about racerelations, and about 20% perceive that contemporary white/blackrelations have been getting at least a little worse. Worryingoften about race relations and perceiving that race relationshave been getting worse were significantly associated withdiminished levels of life satisfaction and happiness. Theresults confirm that race-related worry and pessimism werecommon, and that they impact youth's affective and cognitivestates.  相似文献   
330.
In this paper, we explore young peoples’ normative representations of work. In particular, we are interested in the ways young people view work roles which could be considered ‘atypical’ such as young caring or language brokering. Interviewed were 46 young people (15–18 years) some who did, and some who did not engage in the ‘atypical’ work roles of language brokering or young caring. Findings indicated that young people have a strong representation of what a ‘normal’ childhood comprises and that friends, teachers and parents play a mediational role in cementing this contextually. However, respondents presented two alternative representations around engagement in ‘atypical’ roles, with some individuals holding both views at the same time. On the one hand, they felt that engagement in ‘atypical’ activities would be experienced as a loss of ‘normal’ childhood. On the other hand, a more positive representation of ‘atypical’ childhoods was also drawn on, in which engagement in ‘atypical’ activities was seen as a source of pride and a contributor of additional skills to a child’s development. This opinion was evidenced by both those who had, and those who had not engaged in ‘atypical’ work.  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