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   2406篇
  免费   62篇
管理学   344篇
民族学   14篇
人才学   1篇
人口学   224篇
丛书文集   4篇
理论方法论   290篇
综合类   23篇
社会学   1240篇
统计学   328篇
  2023年   18篇
  2022年   8篇
  2021年   26篇
  2020年   39篇
  2019年   67篇
  2018年   59篇
  2017年   81篇
  2016年   93篇
  2015年   58篇
  2014年   56篇
  2013年   342篇
  2012年   112篇
  2011年   90篇
  2010年   70篇
  2009年   71篇
  2008年   75篇
  2007年   96篇
  2006年   85篇
  2005年   74篇
  2004年   85篇
  2003年   69篇
  2002年   74篇
  2001年   60篇
  2000年   50篇
  1999年   57篇
  1998年   34篇
  1997年   26篇
  1996年   34篇
  1995年   32篇
  1994年   31篇
  1993年   17篇
  1992年   31篇
  1991年   26篇
  1990年   21篇
  1989年   26篇
  1988年   20篇
  1987年   14篇
  1986年   29篇
  1985年   18篇
  1984年   18篇
  1983年   21篇
  1982年   18篇
  1981年   16篇
  1980年   16篇
  1979年   22篇
  1978年   13篇
  1977年   9篇
  1976年   10篇
  1975年   8篇
  1974年   8篇
排序方式: 共有2468条查询结果,搜索用时 156 毫秒
261.
Growth Fetish     
Clive Hamilton, Pluto Press, London, 262 pp., ISBN 0 7453 22514 (hb), 0 7543 2250 6 (pb) Hamilton has an ambitious agenda: not simply a critique of theenvironmental and other dangers that come with the myopic pursuitof growth above all else but a new agenda to mobilize what hesees as a politically moribund left. Hamilton takes effectiveaim at the vacuities of the Third Way and  相似文献   
262.
This study analyses the effectiveness of the European Community's Environmental Assessment Directive of 1985 in its application in the U.K. forestry sector. It assesses the applicability of the regulations in the provision of the public and private outputs of forestry. The environmental assessment regulation may contribute to the provision of the optimal amount of these public and private goods in theory, but it is concluded that, in common with initial results of the environmental assessment process in other sectors, the regulations do not make this contribution in practice in the forestry sector. The main deficiencies of the environmental statements examined were the failure to identify the significant potential impacts; to present alternative project sites and design features; and the erroneous measure of particular externalities. The environmental assessment process was also found to be unsatisfactory in the lack of public accessibility and consultation. The need for revision of the process in the forestry sector is highlighted.  相似文献   
263.
The analysis of recurrent event data in clinical trials presents a number of difficulties. The statistician is faced with issues of event dependency, composite endpoints, unbalanced follow‐up times and informative dropout. It is not unusual, therefore, for statisticians charged with responsibility for providing reliable and valid analyses to need to derive new methods specific to the clinical indication under investigation. One method is proposed that appears to have possible advantages over those that are often used in the analysis of recurrent event data in clinical trials. Based on an approach that counts periods of time with events instead of single event counts, the proposed method makes an adjustment for patient time on study and incorporates heterogeneity by estimating an individual per‐patient risk of experiencing a morbid event. Monte Carlo simulations demonstrate that, with use of a real clinical study data, the proposed method consistently outperforms other measures of morbidity. Copyright © 2003 John Wiley & Sons, Ltd.  相似文献   
264.
Dissemination of risk information is ubiquitous in contemporary society. We explore how individuals react in everyday life to health-risk information, based on what they report in personal interviews. Health-risk information was without exception recognized as unstable and inconsistent. This conformity, however, did not extend to the narratives regarding how health-risk information should be handled. Two opposite positions (ideal-typical strategies) are presented. Either you tend to process and evaluate new information or you tend to ignore it as a whole. Our attempt to reveal the underlying rationality in these two very different approaches involved the exploration of three different avenues of interpretation and brings together two scientific paradigms--economics and sociology--that provide the framework for our analysis. First, we suggest that a greater long-term experience of explicit choice implies that this kind of action becomes more natural and less resource consuming, whereas a reliance on habits in daily life--a natural adjustment to a lack of resources--makes it is more costly to bother about new information. Second, with fewer resources in the short run, fewer opportunities to mitigate bad outcomes, and greater exposure to social and material risks, one is less likely to devote resources to deal with health-risk information. Third, there are several possible links between a low propensity to take account of risk information and a high relative importance of genuine uncertainty in one's life. These theoretical perspectives provide a viable set of hypotheses regarding mechanisms that may contribute to social differences in the response to health-risk information.  相似文献   
265.
Measuring the impact of potentially controllable factors on the willingness of youth to undertake health risks is important to informed public health policy decisions. Typically the only data linking these factors with risk-taking behavior are retrospective. This study demonstrates, by means of a recent example, that there can be serious pitfalls in using even longitudinal retrospective data to draw conclusions about causal relations between potentially controllable factors and risk-taking behavior.  相似文献   
266.
The Internet offers firms a new way to market their products and services and to interact with their end-consumers. While many firms have developed websites, very little is known about the trade-offs consumers are willing to make when making online purchases. With millions of websites competing for attention, online firms need to know in what way consumers make purchase decisions online. Consumers mainly evaluate websites on the basis of choice and convenience. In this paper, we present the results of two European studies that examine what consumers actually value in an online environment. In study 1, we assess choice-related trade-offs in terms of number of product categories, variety of products within a given category and product-related information. Conjoint analysis revealed that product-related information represents an important decision-making variable. In study 2, we assess convenience-related trade-offs in terms of logistics, fulfilment and security. Conjoint analysis revealed that fulfilment is the most important variable related to online handling. Finally, our study clearly indicates that firms have to distinguish different consumer segments on the basis of their preferences. This knowledge enables online firms to use their resources more effectively.  相似文献   
267.
Why have community studies in Britain undergone such a decline? Several reasons are suggested for the decrease in popularity of this type of research since the mid-1960s, but several signs of possible resurgence are detected. Sociologists may also have something to learn from applied work in this area. The definition of the field is shifting from the geographical community to the study of primary group relations among neighbours, friends and kin. An effective methodological strategy which avoids hypostatising geographical space is social network analysis. Current theoretical issues are exemplified from Philip Abrams's work. There is revival too in the study of local-level political action.  相似文献   
268.
269.
In the span of four weeks, from late March to early April 2008, three important technical services conferences were held: the Electronic Resources & Libraries Conference, the New England Technical Services Librarians Conference, and the North Carolina Serials Conference.  相似文献   
270.
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