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31.
Despite renewed interest in traditional trait approaches to leadership and despite recent demographic trends towards an aging workforce, research on leaders' age as a specific demographic trait variable has remained surprisingly sparse and fragmented. This article provides a comprehensive review of the empirical literature on this issue. Although a body of research relating leaders' age with their behaviors and outcomes has emerged, the existing findings exhibit little consistency and lack theoretical coherence. Integrating theories of emotional aging with research on emotions and leadership, we therefore develop a novel, emotion-based framework that explicates key mechanisms and boundary conditions underlying age–leadership linkages. Moreover, we outline opportunities for further theoretical extensions and provide recommendations for future empirical work. Overall, this article paves new ground for contemporary research on leadership traits by highlighting the relevance of leaders' age, summarizing current knowledge on this issue, and providing new theoretical and empirical directions.  相似文献   
32.
The idea of standardizing concepts in sociology is not new, but we have made little progress, despite the early hopes of such theorists as Durkheim and Weber. This article refutes the arguments of some who contend that we do not need standard concepts, we cannot make standard concepts, social phenomena are too complex and changeful, sociologists are too individualistic and sociological concepts are too context-dependent. The author proposes that the American Sociological Association appoint a Committee on Basic Sociological Concepts to investigate and recommend the official adoption of a basic conceptual language in American sociology. This paper is excerpted from a longer discussion first presented to a session on metatheory at the 1990 meetings of the American Sociological Association, and forthcoming in a collection of papers from that session.  相似文献   
33.
Dynamic Measures of Individual Deprivation   总被引:1,自引:0,他引:1  
We introduce a one-parameter class of individual deprivation measures. Motivated by a suggestion of Runciman, we modify Yitzhaki’s index by multiplying it by a function that is interpreted as measuring the part of deprivation generated by an agent’s observation that others in his reference group move on to a higher level of income than himself. The parameter reflects the relative weight given to these dynamic considerations, and the standard Yitzhaki index is obtained as a special case. In addition, we characterize more general classes of measures that pay attention to this important dynamic aspect of deprivation.  相似文献   
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The aim of this study was to compare the mental health, substance use, and sexual risk behaviors of rural and non-rural transgender persons. Online banner advertisements were used to recruit 1,229 self-identified rural and non-rural transgender adults (18+ years) residing in the United States. Primary findings include significant differences in mental health between rural and non-rural transmen; relatively low levels of binge drinking across groups, although high levels of marijuana use; and high levels of unprotected sex among transwomen. The results confirm that mental and physical health services for transgender persons residing in rural areas are urgently needed.  相似文献   
36.
Editors' introduction: Walter Stephan's interest in intergroup relations grew from his early involvement in intercultural relations. He spent substantial time in Latin America as well as Vietnam during his college years. These experiences influenced his choice to study social psychology at the University of Minnesota. His first foray into intergroup relations came with his move to Austin, Texas, in 1971. A Court mandate ordered schools to be desegregated, and Stephan examined the effects of school desegregation there on students' self-esteem and intergroup attitudes. His field research on the effects of desegregation as well as classroom interventions to improve intergroup relations was complemented by his laboratory research on intergroup biases, intergroup threat, intergroup anxiety, and empathy. Stephan brings this lifetime of involvement in both basic and applied research, and deep concern for effective practice and humanistic philosophy, to his commentary. He opens the commentaries with an elucidation of the difficulties in, and benefits of, the central thrust of this volume: the researcher-practitioner collaboration. He paints portraits of practitioners, researchers, and practitioner-researchers, and classifies articles in this issue accordingly. He notes the difficulties among the various parties interested in improving intergroup relations, spanning from simple lack of knowledge to lack of contact to lack of meaningful ways to interact. However, potential benefits of collaboration are abundant for all parties, and Stephan proposes a number of ways in which such partnerships could be actualized.  相似文献   
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Nowadays, the majority of human beings live in urban ecosystems, with this proportion expected to continue increasing in the future. With the growing importance of urban rat-associated issues (e.g. damages to urban infrastructures, costs of rat-control programs, rat-associated health risks), it is becoming indispensable to fill the identified gaps in knowledge on the urban brown rat regarding, among others, its density, home range, genetic structure, and infectious status. In this context, live-trapping is a crucial prerequisite to any scientific investigation. This paper assesses the main constraints and challenges regarding the urban field and describes the major steps to be considered when planning research on urban rats. The primary challenges are i) the characterization of the urban experimental unit; ii) the choice of a trapping design: the use of live-trapping in capture-mark-recapture design, in association with modern statistics, is highly recommended to answer ecological questions (although these methods, mostly developed in natural ecosystems, need to be implemented for the urban field); iii) the potential ethical considerations with regard to animal welfare and field-worker safety; iv) the building of mutually-beneficial collaborations with city stakeholders, pest control professionals, and citizens. Emphasis must be put on communication to the public and education of field-workers. One major need of modern urban rat research is a peer-validated field methodology allowing reproducibility, repeatability, and inference from urban field studies and enabling researchers to answer long-standing key questions about urban rat ecology.  相似文献   
39.
The aims of this study were (1) to analyze the sport participation in a cohort of community-dwelling elderly people in Germany and (2) to evaluate associations between sport participation, sociodemographic factors, cardiovascular risk factors, and health status. In a monitored prospective cohort study (getABI), 6,880 unselected patients ≥65 years have been followed up by 344 general practitioners beginning in 2001. As part of the 5-year follow-up telephone interview, a sample of 1,376 participants was interviewed on sport participation. The association between participation in at least one sporting activity (“sporty” yes/no) during the past week (cycling) or month (other sports) and the following parameters was analyzed by logistic regression: age, sex, immigration background, education, waist circumference, smoking, self-reported health, history of vascular events, diabetes mellitus, lipometabolic disorder, and arterial hypertension. Analysis of activities (n = 1,304; median age 76 (70–94) years; 55.1% women) showed that 27.6% of participants rode a bicycle during the previous week. During the previous month, 24.9% of participants did gymnastics or strength training, and 16.5% swam. Of all participants, 53.8% were sporty. Multivariate analysis revealed several independent factors to be associated with being sporty (p < 0.05): younger age, male sex, higher education, nonsmoking, better self-reported health, and not being diagnosed with diabetes. Immigration background, waist circumference, history of vascular events, lipometabolic disorder, and hypertension did not show a statistically significant association (p ≥ 0.05) with sport participation. Summing up, the most frequently performed sporting activities were cycling, gymnastics or strength training, and swimming. Sport participation was associated with, for example, age and sex.  相似文献   
40.

We compare the relative influence of different celebrity endorser attributes on respondents’ intentions to donate to a fictitious charity. The celebrity endorser attributes we modeled are expertise, admirability, likeability, trustworthiness, and attractiveness. We examine the moderating effects of audience sex, and general attitudes toward charities. Finally, we examined the mediating effects of perceived endorser fit with the endorsed charity. Our results find that endorser expertise and admirability are significant predictors of audience donation intentions. Audience general attitudes toward charities are a significant moderator of the influence of endorser expertise and admirability on donation intentions. We discuss the implications of our findings for researchers and practitioners.

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