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21.
This paper attempts to analyze the social, economic, and political sources for the emergence of modern Soviet sociology in the 1950s. While it does not address extensively the characteristics of current Soviet sociology, it is suggested that those characteristics of a methodologically sophisticated and economically oriented sociology are largely the result of a compact between Soviet leaders and sociologists which allowed and required its post-Stalin emergence. Four sets of factors are evaluated in terms of their effect on the emergence of Soviet sociology. These are 1) the Marxist-Leninist vision (that is, the Utopian elements of ideology), 2) the Soviet ideology (that is, the elements of ideology oriented toward system maintenance), 3) the diffusion of ideas, and 4) the mandate of Soviet economic development. A brief evaluation of these sets of factors as they affect the emergence of Chinese sociology in the early 1980s is also provided. It is concluded that the future shape of sociology in the USSR and China is dependent upon the evolution of ideology in the two countries, an evolution that is intimately tied to the succession of political leadership.  相似文献   
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The gamma process is a natural model for degradation processes in which deterioration is supposed to take place gradually over time in a sequence of tiny increments. When units or individuals are observed over time it is often apparent that they degrade at different rates, even though no differences in treatment or environment are present. Thus, in applying gamma-process models to such data, it is necessary to allow for such unexplained differences. In the present paper this is accomplished by constructing a tractable gamma-process model incorporating a random effect. The model is fitted to some data on crack growth and corresponding goodness-of-fit tests are carried out. Prediction calculations for failure times defined in terms of degradation level passages are developed and illustrated.  相似文献   
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This article reviews the literature pertaining to the causes of child maltreatment. The review discusses 68 articles from various disciplines and organizes them into four predominant theories; psychodynamic, social learning, social psychological, and sociological. Research evidence supporting each of the theories is described and critiqued.  相似文献   
26.
American Indian adults are thought to experience significant depressive symptoms at rates several times higher than adults in the general population, yet we know very little about factors associated with depressive symptoms among this under studied group. Many researchers have argued that depressive symptoms are associated with conflicts between American Indian traditional cultural values, practices, and beliefs and those of the majority culture. This report, based on a sample 287 American Indian adults from the upper Midwest, takes into account two measures of cultural effects: perceived discrimination, as one indicator of culture conflict, and traditional practices, as a measure of cultural identification. The results indicate that discrimination is strongly associated with depressive symptoms among American Indian adults and that engaging in traditional practices is negatively related to depressive symptoms. Moreover, interaction effects between perceived discrimination and traditional practices indicate that engaging in traditional practices buffers the negative effects of discrimination among those who regularly participate in them.  相似文献   
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This study involves the development and initial validation of a questionnaire measuring the propensity for sexual inhibition and excitation in men: the Sexual Inhibition Sexual Excitation Scales (SIS/SES). The underlying theoretical model postulates that sexual response and associated behavior depend on dual control mechanisms, involving excitatory and inhibitory neurophysiological systems. The scales and their discriminant and convergent validity and test-retest reliability are described. In a sample of 408 sexually functional men (mean age = 22.8 years), factor analyses identified three higher-level factors: two related to sexual inhibition and one to sexual excitation. Multigroup Confirmatory Factor Analyses revealed that the factor structure provided an acceptable fit to the data obtained in a second (N = 459; mean age = 20.9 years) and third (N = 313; mean age = 46.2 years) sample of men, with similar distributions and relationships with other measures. Theoretical issues and areas for further research, including male sexual dysfunction and risk taking, are discussed.  相似文献   
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This study evaluated the predictive value of a newly developed measure of the propensity for sexual inhibition and excitation; the Sexual Inhibition Sexual Excitation Scales (SIS/SES). Sexual, cardiovascular, and startle responses were measured in a group of 40 sexually functional men during the presentation of threatening and nonthreatening erotic films. Two levels of performance demand were created and two films were combined with a distraction task. Participants were assigned to high and low groups for each of the three SIS/SES scales. As predicted, men with high SES scores showed generally higher sexual responses. High and low SIS1 groups did not differ in their responses. Men with high and low SIS2 scores did not differ in their responses to nonthreatening stimuli; however, low SIS2 men showed greater genital response to the threatening stimuli. The findings provide support for the value of the SIS/SES scales in predicting sexual responses.  相似文献   
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In this paper we consider semiparametric inference methods for the time scale parameters in general time scale models (Oakes, 1995, Duchesne and Lawless, 2000). We use the results of Robins and Tsiatis (1992) and Lin and Ying (1995) to derive a rank-based estimator that is more efficient and robust than the traditional minimum coefficient of variation (min CV) estimator of Kordonsky and Gerstbakh (1993) for many underlying models. Moreover, our estimator can readily handle censored samples, which is not the case with the min CV method.  相似文献   
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The wealth of publications, seminars and conferences on the topic of computer models for planning and control has included only a relatively small proportion of material which critically evaluates their contribution and, in particular, focuses attention on the attitudes of managers towards such innovation. There are some outstanding exceptions to this general picture, such as the excellent survey by P.H. Grinyer and J. Wooler1 on corporate models in the U.K., and the critique by R.H. Hayes and R.L. Nolan2, who argue that corporate models have fallen into disuse or disrepute in many U.S. organizations and recommend the development of simple models to aid the planning process rather than overall corporate models.

In this article the authors attempt to bring together some of the more important findings in the literature.  相似文献   

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