全文获取类型
收费全文 | 1561篇 |
免费 | 43篇 |
国内免费 | 1篇 |
专业分类
管理学 | 269篇 |
民族学 | 20篇 |
人口学 | 122篇 |
丛书文集 | 198篇 |
理论方法论 | 69篇 |
综合类 | 643篇 |
社会学 | 213篇 |
统计学 | 71篇 |
出版年
2023年 | 7篇 |
2022年 | 9篇 |
2021年 | 13篇 |
2020年 | 29篇 |
2019年 | 22篇 |
2018年 | 35篇 |
2017年 | 21篇 |
2016年 | 28篇 |
2015年 | 29篇 |
2014年 | 64篇 |
2013年 | 130篇 |
2012年 | 61篇 |
2011年 | 103篇 |
2010年 | 66篇 |
2009年 | 95篇 |
2008年 | 115篇 |
2007年 | 92篇 |
2006年 | 110篇 |
2005年 | 111篇 |
2004年 | 89篇 |
2003年 | 84篇 |
2002年 | 58篇 |
2001年 | 58篇 |
2000年 | 36篇 |
1999年 | 21篇 |
1998年 | 13篇 |
1997年 | 3篇 |
1995年 | 2篇 |
1994年 | 5篇 |
1993年 | 7篇 |
1992年 | 9篇 |
1991年 | 11篇 |
1990年 | 5篇 |
1989年 | 4篇 |
1988年 | 8篇 |
1987年 | 4篇 |
1986年 | 3篇 |
1985年 | 5篇 |
1984年 | 6篇 |
1983年 | 11篇 |
1982年 | 4篇 |
1981年 | 12篇 |
1980年 | 6篇 |
1978年 | 1篇 |
排序方式: 共有1605条查询结果,搜索用时 515 毫秒
91.
《Accountability in research》2013,20(3):159-174
In 2001, the National Center for Research Resources (NCRR) directed the 78 General Clinical Research Centers (GCRC) to develop a Research Subject Advocate (RSA) position. The RSA would report directly to the Principal Investigator (PI) of each GCRC and assure compliance of studies conducted on the GCRC with federal regulations and policies. Seven RSAs agreed to be interviewed about their new role. Website documents, electronic correspondence, and presentations at the first annual national meeting of RSAs were scrutinized using discursive analysis to shed light on this new organizational form and its potential for increased protection of human research participants. The RSA role actualizes the ethical principles of respect for persons, justice, and beneficence that are the foundation of the protection of research participants. The results also reveal the regulatory, institutional, collegial, and personal resources and barriers that assist the RSA in the successful implementation of the RSA role. In addition, issues important to the RSAs are described. 相似文献
92.
杨胜宽 《西华大学学报(哲学社会科学版)》2009,28(3)
苏洵<辨奸论>的真伪问题,一直是学界争议的话题.此前的研究,多从版本和史实考订的角度切入,取得了很大进展,但尚难说得以圆满解决.本文试以考察苏洵的"人情"观为重点,观照决定苏、王关系的深刻思想分歧,有些疑难似更容易理解. 相似文献
93.
Group technology has been used successfully for a number of years as a setup reduction tool. It is especially valuable in low-volume high-mix manufacturing environments where products and machines may be partitioned into product families and machine cells. The partitioning of machines or processes into cells may be limited by practical constraints, and the partitioning of products is complicated as the number of products and processes increases. In this paper, the authors examine the behaviour of various grouping strategies lauded as being appropriate in situations where machine partitioning and product routeing are determined by technological constraints. Of specific experimental concern in this paper is the effect of the mean and variance of component part commonality between products on system performance under various grouping strategies in a multiple-machine environment. 相似文献
94.
We know that inequality varies by region and also begins early in life. Bivariate data suggest that 5–14-year-old children in the 1994 National Longitudinal Survey of Youth (NLSY) score differently in reading and mathematics achievement depending on their region, with children in the South and West scoring lower. We combine literatures on regional bases of inequality and family and school capital to generate hypotheses explaining these differences. Analyses of covariance provide supportive evidence. For both outcomes among boys, the variation is explained by additive models including family and child social and human capital, although selected aspects of school capital are also influential; these models also explain math achievement among girls. A model including both additive and interactive effects explains regional differences in reading achievement for girls. We interpret these findings in terms of their implications for studying inequality in child achievement as well as for emphasizing the importance of regional inequality, particularly beyond the South versus non-South distinction. 相似文献
95.
Fei Xu 《Serials Review》2013,39(4):235-241
AbstractDuring 2009, the Hilton M. Briggs Library, South Dakota State University, went live with MetaLib, a federated search engine from Ex Libris. This paper presents the implementation process, addresses resource accessibility issues, and suggests a number of resources that can be consulted about these issues. Readers can apply similar strategies to projects involving federated search systems, as many implementation projects involve the same basic considerations presented here. The author did not find any studies specifically focused on configurations of MetaLib resources, so this content should be singularly useful. 相似文献
96.
In these times, when fame is available to almost anyone, it is worth being able to measure the extent and dimensions of a person's charisma. Most of the research on charisma to date is restricted to the area of leadership. In this article, however, charisma is generalized to take in all human beings and is conceptualized as a multi-dimensional cognitive-affective phenomenon. The article presents a pilot study aimed at providing an adequate operational definition of the construct as well as an initial tool for its measurement. A following literature review shows how authors have developed the concept of charisma and its initial operational dimensions for empirical research. A questionnaire is developed in three stages. The factor analyses applied in stages two and three point towards a six-factor solution (i.e. six dimensions of charisma). Further analysis reveals that the developed instrument is reliable and viable as well as applicable for future theoretical and practical work. 相似文献
97.
古典人权理论的本质主义立场将人权归结为人所固有的权利,而忽略了人权得以实现的条件,从而使人沦为没有任何身份的赤裸生命,最终导致人权在现实中很难得到有力的保障。阿伦特从现象学的视角出发,以其富有争议的方式对当代的自明之理提出了挑战,反对用固有的理论范畴来解释人类历史的经验,强调采用新的方式朝向实事本身,重新考虑人权的条件,也即共同体的基础性作用。这种对当代自明之理的尖锐挑战,为我们反思人权问题提供了新的可能性。 相似文献
98.
Abstract The organizational role of the Employee Assistance Programme (EAP) is evaluated with particular respect to managerial and human resources policies and practices. Attention is given to models of the EAP, and an ideal-typical model is discussed. A synoptic view is taken covering the scope of the EAP, the sectors of application, the selection criteria for the EAP, as well as patterns of introduction-all within a contingency framework. A critical analysis is made of the roles of participants within the EAP process, as well as of problematic ethical and professional dimensions which the EAP introduces into organizational functioning. A final section treats the future forms of development which the EAP may follow to satisy both organizational and professional imperatives. 相似文献
99.
Edem O. P. Akpan 《生产规划与管理》2013,24(8):775-780
From the available literature, there seems to be no defined approach to resource smoothing exercise except those attempted by Weist (1967, Management Science, 13, B359-B377) and Burgess and Killebrew (1962, Journal of Industrial Engineering, 13, 76-83). The aim of the smoothing exercise is to achieve optimal resource usage by avoiding high peaks and deep valleys in the project resource profile. The general approach has always been to move some activities with floats in the high peak regions to be started at a later date, and as this is done, the valleys will be filled to smooth the resource profile subject of course to time constraint. If this approach is followed as it is, it would be difficult to determine optimality especially when many resources are involved. A cost minimization approach is envisaged in the present study with no limitation on the number of resource inputs. In a situation where the resources are assumed to have the same value, the cost assigned to each of them should be similar. The method follows the general concept but with a difference; cost of the activity in question is considered. The exercise is continued until all the floats are exhausted. The optimum result would then be the one with the minimum cost profile. From examples used for the evaluation, the results obtained are comparable to those of the above two researchers, and some with better results in the majority of cases. 相似文献
100.
《Journal Of Human Behavior In The Social Environment》2013,23(4):65-86
Abstract The life stage that ranges from approximately age forty to sixty-five in human development is a time of major changes for both men and women, yet this time frame is often neglected or de-emphasized in the intervention context. This article reviews the philosophical, biological, cultural, psychological, and social areas of human development in mid-life. These factors are identified and practice suggestions are made as we enter the new millennium. 相似文献