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   5820篇
  免费   171篇
管理学   878篇
民族学   33篇
人才学   2篇
人口学   559篇
丛书文集   37篇
理论方法论   707篇
综合类   52篇
社会学   2985篇
统计学   738篇
  2023年   24篇
  2020年   92篇
  2019年   115篇
  2018年   97篇
  2017年   140篇
  2016年   149篇
  2015年   108篇
  2014年   148篇
  2013年   991篇
  2012年   181篇
  2011年   161篇
  2010年   135篇
  2009年   155篇
  2008年   172篇
  2007年   166篇
  2006年   153篇
  2005年   197篇
  2004年   214篇
  2003年   184篇
  2002年   195篇
  2001年   150篇
  2000年   117篇
  1999年   131篇
  1998年   113篇
  1997年   101篇
  1996年   89篇
  1995年   96篇
  1994年   90篇
  1993年   100篇
  1992年   74篇
  1991年   85篇
  1990年   64篇
  1989年   61篇
  1988年   69篇
  1987年   50篇
  1986年   53篇
  1985年   63篇
  1984年   57篇
  1983年   56篇
  1982年   60篇
  1981年   51篇
  1980年   48篇
  1979年   49篇
  1978年   44篇
  1977年   46篇
  1976年   44篇
  1975年   45篇
  1974年   33篇
  1973年   29篇
  1971年   22篇
排序方式: 共有5991条查询结果,搜索用时 578 毫秒
891.
Increased import competition from China has brought about a host of negative consequences for the most exposed industries and labor markets. Do social programs attenuate these harmful effects? We examine changes in import competition between 1990 and 2007, taking crime as our outcome of interest and unemployment insurance as our mitigating program. We find strong evidence that counties with access to more generous unemployment insurance experienced relatively smaller increases in trade‐induced property crime. This highlights a new and important positive externality of unemployment insurance. (JEL H00, R10)  相似文献   
892.
The use of table saws in the United States is associated with approximately 28,000 emergency department (ED) visits and 2,000 cases of finger amputation per year. This article provides a quantitative estimate of the economic benefits of automatic protection systems that could be designed into new table saw products. Benefits are defined as reduced health‐care costs, enhanced production at work, and diminished pain and suffering. The present value of the benefits of automatic protection over the life of the table saw are interpreted as the switch‐point cost value, the maximum investment in automatic protection that can be justified by benefit‐cost comparison. Using two alternative methods for monetizing pain and suffering, the study finds switch‐point cost values of $753 and $561 per saw. These point estimates are sensitive to the values of inputs, especially the average cost of injury. The various switch‐point cost values are substantially higher than rough estimates of the incremental cost of automatic protection systems. Uncertainties and future research needs are discussed.  相似文献   
893.
894.
895.
Quantitative risk assessments for physical, chemical, biological, occupational, or environmental agents rely on scientific studies to support their conclusions. These studies often include relatively few observations, and, as a result, models used to characterize the risk may include large amounts of uncertainty. The motivation, development, and assessment of new methods for risk assessment is facilitated by the availability of a set of experimental studies that span a range of dose‐response patterns that are observed in practice. We describe construction of such a historical database focusing on quantal data in chemical risk assessment, and we employ this database to develop priors in Bayesian analyses. The database is assembled from a variety of existing toxicological data sources and contains 733 separate quantal dose‐response data sets. As an illustration of the database's use, prior distributions for individual model parameters in Bayesian dose‐response analysis are constructed. Results indicate that including prior information based on curated historical data in quantitative risk assessments may help stabilize eventual point estimates, producing dose‐response functions that are more stable and precisely estimated. These in turn produce potency estimates that share the same benefit. We are confident that quantitative risk analysts will find many other applications and issues to explore using this database.  相似文献   
896.
ABSTRACT

The importance of compassion in healthcare is universally acknowledged. However, the factors that enhance compassion are not well understood. The perception of common humanity has been proposed as a prosocial perspective that leads to unbiased universal compassion. There has been a lack of research into the relationship between common humanity and compassion. This study examined the use of common humanity scenarios to promote compassion in healthcare workers. Seventy-five healthcare workers were randomly assigned to two groups and shown a different common humanity scenario. The healthcare workers were asked what effect viewing the videos had on their perception of common humanity and compassion. Thematic analysis was used to identify themes. Four main themes emerged: (a) common bonds; (b) people have the same needs; (c) no one wants to suffer; (d) seeing strangers helping others is motivating. Healthcare workers reported feelings of care, concern, and compassion after viewing common humanity scenarios.

IMPLICATIONS
  • Viewing common humanity scenarios appears to lead to enhanced feelings of connection to others and compassion in healthcare workers.

  • Using common humanity scenarios may be a useful compassion training strategy in healthcare.

  • Further research is necessary to gain a better understanding of how viewing common humanity material influences compassion.

  相似文献   
897.
In this article, I review a range of theoretical and practical issues that are relevant to the foster care of teenagers. I argue that topics such as the recent research evidence from neuroscience regarding brain development in adolescence, as well as control, the promotion of autonomy, and resilience, all have major implications for the provision of appropriate care for teenagers. I outline some of the key conclusions reached by researchers on these pertinent topics and then go on to consider the implications from this evidence for the training of foster carers.  相似文献   
898.
Are redistributive politics in Canada fading or merely in abeyance? In this essay, I examine the empirical evidence for the “fading” metaphor, examine new, neoliberal lenses that have shaped recent policy developments, and identify changes in the role of political actors and policy‐making institutions that have facilitated the redistributive weakening. Ever the optimist, however, I conclude on an upbeat note on future democratic possibilities for a fairer and more just Canada. La politique de la redistribution au Canada, est‐elle en train de s’étioler ou est‐elle tout simplement en suspens? Dans un premier temps, je pose le contexte empirique à la fois pour et contre la métaphore d’ “étiolement”, tendances concernant la disparité des revenus, la pauvreté, et la répartition du revenu. Dans un deuxième, je me concentre sur le rôle des nouvelles politiques ainsi que sur le soi‐disant virage néolibéral dans l'idéologie politique qui ont façonné nos réponses à ces développements. Finalement, je discute le caractère changeant à la fois des acteurs politiques et des institutions politiques qui ont restructuré d'une façon cumulative la politique de la redistribution des revenus au Canada.  相似文献   
899.
This paper attempts to examine the ideological frames of reference that inform the definitions of need that are used by disabled and non-disabled people. The main aim of the research upon which this paper is based being to test the degree of congruence of the non-disableds view of need with that of disabled people. Central to this is an exploration of the differences that exist in the perception of disability held by disabled people and nondisabled people. It investigates this through the use of a staged vignette based around a fictitious character (Mr Arthur Angus) and his family. The paper seeks to explore the multidimensional contexts in which individuals operate based upon a deconstruction of the medical/social locus of control model.  相似文献   
900.
Comments On     
  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