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   1142篇
  免费   36篇
管理学   157篇
民族学   5篇
人口学   83篇
丛书文集   6篇
理论方法论   161篇
综合类   6篇
社会学   669篇
统计学   91篇
  2023年   5篇
  2022年   8篇
  2021年   7篇
  2020年   23篇
  2019年   26篇
  2018年   42篇
  2017年   52篇
  2016年   40篇
  2015年   27篇
  2014年   39篇
  2013年   197篇
  2012年   38篇
  2011年   41篇
  2010年   45篇
  2009年   33篇
  2008年   43篇
  2007年   55篇
  2006年   37篇
  2005年   41篇
  2004年   31篇
  2003年   31篇
  2002年   37篇
  2001年   20篇
  2000年   19篇
  1999年   21篇
  1998年   15篇
  1997年   10篇
  1996年   13篇
  1995年   11篇
  1994年   14篇
  1993年   8篇
  1992年   8篇
  1991年   8篇
  1990年   9篇
  1989年   5篇
  1988年   7篇
  1987年   12篇
  1986年   9篇
  1985年   14篇
  1984年   7篇
  1983年   13篇
  1982年   9篇
  1981年   10篇
  1980年   8篇
  1979年   7篇
  1978年   5篇
  1977年   3篇
  1976年   2篇
  1975年   4篇
  1974年   6篇
排序方式: 共有1178条查询结果,搜索用时 15 毫秒
61.
From April 1974, National Health Service authorities have been merged to provide integrated and comprehensive services. The reorganization policies place considerable emphasis on the need for management and planning but planning for health services is not well developed. Ambiguous operational objectives and obscured criteria for effectiveness are not the most promising basis for planning. Nevertheless, a commendable beginning is to be made on planning comprehensively through a systematic annual review of Government health service policies and planning and programming procedures for health authorities. The outlines of the system are described and the prospects for success and further development are considered.  相似文献   
62.
63.
Recent studies point to an emerging role for the TOR (target of rapamycin) pathway in the regulation of life span. In this Perspective, we discuss the possibility that this pathway is an important modulator of nutrient-dependent changes in life span. Additionally, we discuss the interactions between the TOR and insulin-like signaling pathways as well as the key downstream processes that TOR regulates.  相似文献   
64.
Characteristics of effective providers of marital and family therapy (MFT) in rural mental health settings were investigated. The survey sample included 74 members of the National Association for Rural Mental Health who, through a modified Delphi process, created a composite picture of effective MFT providers. The findings yielded six major rank-ordered characteristics of effective MFT providers in rural mental health settings, with effective skills in MFT ranked first. Rural community understanding, appreciation and participation ranked second. Specific competencies contributing to each major characteristic were also identified and are discussed. Recommendations for use of this information are provided.  相似文献   
65.
Some people are doctors. Some people play them on TV. Brian Meltzer could probably do both. A physician executive at Memorial Sloan-Kettering Cancer Center, Meltzer relies on skills he learned in acting school to help manage business decisions. In the first of several essays for The Physician Executive, Meltzer explains how acting can help you become a better leader.  相似文献   
66.
Abstract This research had two primary objectives: 1) to broaden the sociological construct of community attachment to incorporate both social and natural environment dimensions of attachment, and 2) to examine how variations in attachment relate to two dimensions of well‐being in natural amenity‐rich rural communities. The specific dimensions of well‐being measured are two important factors identified in previous research—collective action and perceptions of open communication. Factor analysis of fourteen measures of attachment indicated social attachment and attachment to the natural environment are distinct dimensions of the broader concept of community attachment. Participation in collective action and perceptions of open communication within a respondent's community explained only a small portion of the variance in levels of both social and natural environment attachment. Religious affiliation and length of residence were strongly associated with social attachment, supporting findings from previous empirical work. However, length of residence and religious affiliation were not statistically associated with levels of attachment to the natural environment, further reinforcing the distinction between the two dimensions of attachment.  相似文献   
67.
We describe a two-phase algorithm for MAX-SAT and weighted MAX-SAT problems. In the first phase, we use the GSAT heuristic to find a good solution to the problem. In the second phase, we use an enumeration procedure based on the Davis-Putnam-Loveland algorithm, to find a provably optimal solution. The first heuristic stage improves the performance of the algorithm by obtaining an upper bound on the minimum number of unsatisfied clauses that can be used in pruning branches of the search tree.We compare our algorithm with an integer programming branch-and-cut algorithm. Our implementation of the two-phase algorithm is faster than the integer programming approach on many problems. However, the integer programming approach is more effective than the two-phase algorithm on some classes of problems, including MAX-2-SAT problems.  相似文献   
68.
The use of government incentives tied to market prices as means of boosting corporate social responsibility (CSR) has expanded notably in recent decades. Enhanced business tax deductions for charitable donations and credits for conservation easements are notable cases. While providing incentives for socially desirable behavior to achieve legislative goals has intuitive appeal, the broader economic consequences are not always fully understood. In this study, we examine such wider consequences for supply chains when subsidies for CSR are offered. One effect we identify is that since incentives are typically tied to market value, firms have not only an added incentive to achieve societal objectives (say by donating inventory) but also an incentive to raise output (retail) market prices. A second consequence is that since firms forgo potential revenues by engaging in socially desired behavior, they become increasingly sensitive to supplier pricing; in an uncoordinated supply chain this leads to input (wholesale) price concessions. Among other things, the results underscore that incentives put in place to meet broader societal objectives also have notable ramifications for suppliers, retailers, and consumers in primary markets.  相似文献   
69.

The development of control systems and supporting software remains one of the greatest obstacles to the widespread implementation of highly adaptive reconfigurable automation technology. This paper will present the structure of a modular automation control system designed to support rapid reconfiguration and redeployment of automation components. The paper will first present the concept of a layered system architecture and the use of modular automation components to support the construction of a wide variety of automated systems. This layered system architecture is then applied to the proposed modular supervisory control system responsible for configuring and driving automated production resources. Each of the control components comprising this modular control system will be presented.  相似文献   
70.
Recent feminist critics of the social model of disability have pointed towards a danger that disability studies may give relatively little attention to personal and emotional aspects of disablist oppression and impairment. We argue for consideration of the centrality of the distortion of personal and psychic boundaries as a key aspect of oppressive relational dynamics surrounding disability. Within the observer the disturbing psychic evocations of disability, and related defences, are connected to the maintenance of dynamics of unreal, collusory and alienating modes of relating, which may deprive disabled people of the recognition of subjective experience and personhood. Skewed socialisation of disabled people, involving inter alia the protection of the emotional lives of others, as well as the reality of inaccessible material resources, contributes to the internalisation of disablism and the ideological recruitment of disabled people as complicit in their marginalisation.  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