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   515篇
  免费   21篇
管理学   77篇
民族学   1篇
人口学   48篇
丛书文集   1篇
理论方法论   73篇
综合类   6篇
社会学   292篇
统计学   38篇
  2023年   3篇
  2022年   3篇
  2021年   5篇
  2020年   16篇
  2019年   24篇
  2018年   10篇
  2017年   29篇
  2016年   17篇
  2015年   10篇
  2014年   10篇
  2013年   116篇
  2012年   6篇
  2011年   18篇
  2010年   16篇
  2009年   11篇
  2008年   10篇
  2007年   19篇
  2006年   17篇
  2005年   15篇
  2004年   8篇
  2003年   14篇
  2002年   10篇
  2001年   17篇
  2000年   12篇
  1999年   10篇
  1998年   6篇
  1997年   7篇
  1996年   2篇
  1995年   6篇
  1994年   4篇
  1993年   8篇
  1992年   8篇
  1991年   4篇
  1990年   5篇
  1989年   3篇
  1988年   3篇
  1987年   5篇
  1986年   3篇
  1985年   4篇
  1984年   6篇
  1982年   3篇
  1981年   4篇
  1978年   3篇
  1976年   4篇
  1975年   2篇
  1974年   2篇
  1973年   5篇
  1972年   5篇
  1971年   2篇
  1970年   2篇
排序方式: 共有536条查询结果,搜索用时 453 毫秒
81.
Social Indicators Research - In 2016 the UK’s Conservative Government radically changed the official approach to child poverty measurement, scrapping targets for income poverty and material...  相似文献   
82.
This paper uses longitudinal data from three contrasting data sets (matched Labor Force Surveys, the British Household Panel Survey, and matched New Earnings Surveys) to estimate the impact of the introduction of the U.K. minimum wage (in April 1999) on the probability of subsequent employment among those whose wages would have needed to be raised to comply with the minimum. A difference‐in‐differences estimator is used, based on position in the wage distribution. No significant adverse employment effects are found for any of the four demographic groups considered (adult and youth, men and women) or in any of the three data sets used. (JEL: J38, J23)  相似文献   
83.
Restoration of ecosystem functions in urban environments is made challenging by 1) a public that often lacks understanding of ecological principles, 2) inadequate evidence of the effectiveness of restoration practices, and 3) difficulty integrating social and biophysical factors in studies of urban ecosystems. This paper describes a case study in which potential solutions to these challenges were explored. We facilitated collaborative learning through public participation in the design and implementation of an urban riparian buffer along a headwater stream in a neighborhood park, a process that was informed by ecological research. Learning outcomes were evaluated using surveys and qualitative assessment of discussion. Results indicated that participants’ knowledge about water quality problems associated with urbanization, stormwater, and nonpoint-source pollution increased, familiarity with stormwater management practices increased, and perceptions about the importance of stream ecosystem functions changed. In-stream monitoring of sediment delivery, as well as direct measurements of buffer infiltration capacity, provided early evidence of buffer effectiveness in prevention of sediment inputs to the stream and absorption of runoff from surrounding surfaces. This study provides a useful model for integration of collaborative learning through participation, ecological restoration, and ecological research in an urban setting. Elements deemed essential to success of this model included an opportunity for dialog focused on a specific natural feature, sustained interaction between participants and researchers, opportunities for hands-on participation by urban residents, and flexibility in restoration practice installation.  相似文献   
84.
Since 2000, an Ulrich's Periodicals Directory (Ulrich's) employee has been located in the Library of Congress's U.S. ISSN Center at the Library of Congress to assign ISSN and create records for both Ulrich's and the international ISSN Register/CONSER database. How this arrangement came about, how it has succeeded over the past ten years, and the broad potential for this partnership becoming a model in both organizations for future automated data sharing and data linking is the subject of this article.  相似文献   
85.
We argue that responsible conduct research (RCR) instruction should be extended beyond students and trainees funded by the National Institutes of Health (NIH) or National Science Foundation (NSF) to include all students, trainees, faculty, and research staff involved in research. Extending the scope of RCR instruction can help institutions develop and maintain an environment that promotes ethical research conduct. Universities and scientific organizations have objected to expanding the scope of RCR instruction on the grounds that it would be a major undertaking that would require the expenditure of additional institutional resources. We argue, however, that expanding the scope of RCR instruction can be done efficiently without placing undue burdens on institutions.  相似文献   
86.
Using expected values to simplify decision making under uncertainty   总被引:2,自引:0,他引:2  
Ian N. Durbach  Theodor J. Stewart   《Omega》2009,37(2):312-330
A simulation study examines the impact of a simplification strategy that replaces distributional attribute evaluations with their expected values and uses those expectations in an additive value model. Several alternate simplified forms and approximation approaches are investigated, with results showing that in general the simplified models are able to provide acceptable performance that is fairly robust to a variety of internal and external environmental changes, including changes to the distributional forms of the attribute evaluations, errors in the assessment of the expected values, and problem size. Certain of the simplified models are shown to be highly sensitive to the form of the underlying preference functions, and in particular to extreme non-linearity in these preferences.  相似文献   
87.
88.
We consider a cross‐calibration test of predictions by multiple potential experts in a stochastic environment. This test checks whether each expert is calibrated conditional on the predictions made by other experts. We show that this test is good in the sense that a true expert—one informed of the true distribution of the process—is guaranteed to pass the test no matter what the other potential experts do, and false experts will fail the test on all but a small (category I) set of true distributions. Furthermore, even when there is no true expert present, a test similar to cross‐calibration cannot be simultaneously manipulated by multiple false experts, but at the cost of failing some true experts.  相似文献   
89.
The Love Is Not Abuse application is an educational resource that provides information about teen dating violence and simulates the dangers of digital dating abuse.  相似文献   
90.
ABSTRACT

There is increasing interest in helping elders to remain independent in their homes. As the nation experiences the unprecedented growth among its oldest residents, public and private efforts are emerging to facilitate aging-in-place. However older people, particularly the oldest old, experience a myriad of issues impacting their health and ability to remain at home. This article presents the findings from a needs assessment of a Naturally Occurring Retirement Community (NORC) (n?=?114) that revealed multiple health-related issues among older people residing in high-need neighborhoods. The study utilized a holistic perspective of health to measure physical, mental, and social well-being among the older residents. Implications for community-based health interventions to enhance aging-in-place are discussed.  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