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391.
This paper provides a comparison of the triadic-level structure inherent in behavioral and cognitive social network data taken on the same group, using a variety of groups whose communication could easily be monitored.It is found that many types of structure occur significantly more or less than chance in both behavioral and cognitive data, and providing that these are treated in similar ways, there is good agreement between the two structures. However, there are several ways to treat behavioral data, and these produce at least two essentially different structures.If cognitive and behavioral triads are compared, triad by triad, then there is virtually no agreement between them (even though they may both display the same structure on an overall triad census).Finally, as a demonstration of the dangers of relying solely on cognitive data, an unlikely null hypothesis is proposed. This asserts — for demonstration purposes — that, under many circumstances, behavioral structure never alters. Change in structure over time apparently occurs because of informant error in the reporting of the cognitive data. A pseudo-transition matrix, giving the probability that a triad is reported as one type when data are first taken, and a different type at a later date, is calculated. This compares reasonably with a genuine transition matrix evaluated for longitudinal cognitive data. It is believed that no data currently exist which can disprove this hypothesis, unlikely though it is. Much more accurate data are therefore necessary if any reliable theory of social structure is to be produced. 相似文献
392.
This study focuses on the perception of large scale application of nuclear energy and coal in the Netherlands and France. The application of these energy-sources and the risks and benefits are judged differently by various group in society. In Europe, France has the highest density of nuclear power plants and the Netherlands has one of the lowest. In both countries scientists and social scientists completed a questionnaire assessing the perception of the large scale application of both energy sources. Furthermore, a number of variables relating to the socio cultural and political circumstances were measured. The results indicate that the French had a higher risk perception and a more negative attitude toward nuclear power than the Dutch. But they also assess the benefits of the use of nuclear power to be higher. Explanations for these differences are discussed. 相似文献
393.
Corporate planning for the 1990s: The new frontiers 总被引:1,自引:0,他引:1
394.
There is growing evidence that the central strategy question for business is no longer ‘what business are you in?’ but‘why are you in business?’ The traditional answers to this question—‘to make profits’, ‘to grow’ and ‘to give an adequate return to the shareholder’, are all being questioned. In their place others are being suggested—‘to provide satisfying jobs’, ‘to help solve social problems’, ‘to assist in urban and regional development’.In this article, Bernard Taylor suggests that the conflict between business goals and social goals has become the central strategy problem. Business enterprises like other organizations tend to develop their own distinctive sub-cultures with their own value systems which may differ markedly from the values accepted in society generally. The more effective the selection, training and reward systems, the more these business values will be reinforced.But this can lead to difficulties when society begins to reject business values in favour of other social goals; particularly at a time when the power and autonomy of management is being challenged and Corporate Planning is being transformed from an internal dialogue between managers at headquarters and managers in divisions into an open debate involving public servants, employees and self-appointed representatives of community interests. 相似文献
395.
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397.
Bernard F. Lentz 《Journal of Labor Research》1980,1(2):377-407
This article attempts to bring about a synthesis of the theory of human capital and the disparate and largely empirical literature
on the impact of unions on an individual worker’s terms and conditions of employment. This is done by modeling the decision
of a worker to join a unionized firm or vote for a union in an NLRB election. From this model both the theoretically correct
valuation and some empirical estimates of the value of the major wage and nonwage (seniority, discipline and discharge, strikes,
dues) impacts of unions are presented. Extensions to risk averse workers, free rider problems, union elections and contract
ratification votes are also briefly considered. 相似文献
398.
Meta-analysis was used to summarize the results of 134 studies of adolescent contraceptive use in relation to two major explanatory models, the career model and the decision model. There was evidence in support of both models, although there has been less research conducted on variables related to the decision model. The major variables found to affect young women's contraceptive use were partner influence to use contraception, acceptance of one's sexuality, future orientation, positive attitudes toward contraception, an exclusive sexual relationship, and frequency of intercourse. The major variables affecting young men's contraceptive use were partner influence, frequency of intercourse, and positive attitudes toward contraception; however, there was relatively little research on young men compared to young women. A number of possible future directions for research are noted.We would like to thank Nancy Adler and Catherine Chilman for their comments on an earlier version of this article. Portions of this research were presented at the 1984 meeting of the American Psychological Association.Requests for reprints should be addressed to Bernard E. Whitley, Jr., Department of Psychological Science, Ball State University, Muncie, Indiana, 47306. 相似文献
399.
Managers in striving for system implementation often disregard the time and cost that must be expended in achieving implementation success. This paper explores the use of GERT network analysis as a tool for planning and ascertaining the expected time and cost of implementation. The supporting base for the study is an implementation process that employs computer gaming for achieving organizational change. 相似文献
400.