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221.
Data on the effect of limiting the number of verdict options open to jurors on the probability of acquittal are reanalyzed. Strong support is found for a model which postulates that jurors' preferences are single peaked with respect to an underlying verdict severity continuum. Limited support is found for an anchoring effect in which the addition of new verdict options affects the perceived relative fairness of other verdict options. The implication of the single-peakedness model is that some jurors will refuse to vote for conviction if the verdict (punishment) is seen as too harsh even though the defendant is perceived to be guilty of committing a crime.  相似文献   
222.
This paper examines whether clique-structure in cognitive data (i.e. recall of who one talks to) may be used as a proxy for clique-structure in behavioral data (i.e. who one actually talks to). The answer to this question is crucial to much of sociometric and social net-theoretic studies of social structure.We analysed the clique structures of the communication patterns of four naturally occurring groups of sizes 34 to 58, whose actual communications could easily be monitored, together with the groups' perceptions of their communications. The groups used were: radio hams, a college fraternity, a group of office workers, and an academic department. The analysis used clique-finding, block-modelling, and factor-analytic techniques, all employed in such a way as to maximize the accuracy of the cognitive data.After defining a way to compare clique structures between behavioral and cognitive data, we found that there was no useful relationship between the two, and furthermore there was no significant difference in performance between any of the structure-finding algorithms.We conclude that cognitive data may not be used for drawing any conclusions about behavioral social structure.  相似文献   
223.
Vocational rehabilitation has increasingly emphasized individualized community employment for individuals with severe disabilities. Early approaches were highly controlled by rehabilitation professionals, but research has shown that high levels of professional support can be intrusive, and that businesses are more able to participate in the support process than was initially assumed. This article summarizes recent developments leading to a new generation of partnership approaches that support and build the capacity of employers to successfully employ individuals with severe disabilities. Four innovative approaches--a consultation model of employer support, the development of business consortia, expanding diversity programs, and directing service funding to employers or coworkers--are described and the implications for rehabilitation services are outlined.  相似文献   
224.
European businessmen find themselves at the centre of a political debate which questions the existence of capitalism as we know it. Its critics would replace it or reform it by establishing a higher degree of state control or union control, by building protective trade barriers on a national or European level, and by arranging for a greater involvement of community interests in management decision-making.How should business leaders respond? Increasingly, business is becoming more ‘politicized’ and businessmen are putting their case personally, through industry and employer associations, and with the aid of external consultants and staff specialists in ‘Public Affairs’. The structures of business organizations are being changed to include representation by employees, consumers and other interests. And businesses are becoming involved in ‘social’ tasks like job creation and the provision of social services such as refuse collection, postal services, private education and private medicine. In this article, the authors trace the major social and political trends which have affected European business in the post-war period and identify the key social issues for businessmen in the 1980s.  相似文献   
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Vertical specialization generated by the international fragmentation of production within global networks is driven not only by comparative advantage, but also by the locational decisions of lead firms which determine the role and bargaining power of local producers in their value chain. This study examines the consequences of such specialization in textiles and clothing for 26 labour‐abundant countries from 1990 to 2007. Fixed effects regressions based on panel data reveal that the industry does not always reap the benefits of the resulting international trade integration. Rather, the authors observe a negative relationship between vertical specialization and relative real wages in the textile and clothing industry.  相似文献   
228.
Urbanization is a major global change inducing complex and multiple modifications of landscapes and ecosystems. The spatial distributions of organisms experiencing these modifications will likely shift specifically, depending on each species’ response to each environmental modification induced by urbanization. We sampled two ant genera (Lasius and Tetramorium) at 1248 locations along an urbanization gradient in Lyon, France and used high resolution spatial layers for 18 spatial (e.g., open habitat fragmentation, bioclimatic data and surface temperatures) and temporal (e.g., comparison of Normalized Difference Vegetation Index between 1986 and 2015) environmental variables associated with urbanization. Coupling two different analytical methods (Outlying Mean Index and Boosted Regression Trees), we showed that each species’ distribution was influenced by its own combination of environmental factors. Two morphologically cryptic Tetramorium species (T. sp.E and T. sp.U2) were both highly abundant but with opposite responses to urbanization: while T. sp.E was favored by urbanized habitat, T. sp.U2 avoided urbanized areas. Among Lasius species, we detected 63 occurrences of the invasive ant Lasius neglectus, the distribution of which was favored only by embankments along roads. We found that, even at this reduced spatial scale, climatic effects influenced most species and interacted with urbanization factors.  相似文献   
229.
Investigations of urbanization effects on birds have focused mainly on breeding traits expressed after the nest-building stage (e.g. first-egg date, clutch size, breeding success, and offspring characteristics). Urban studies largely ignored how and why the aspects of nest building might be associated with the degree of urbanization. As urban environments are expected to present novel environmental changes relative to rural environments, it is important to evaluate how nest-building behavior is impacted by vegetation modifications associated with urbanization. To examine nest design in a Mediterranean city environment, we allowed urban great tits (Parus major) to breed in nest boxes in areas that differed in local vegetation cover. We found that different measures of nest size or mass were not associated with vegetation cover. In particular, nests located adjacent to streets with lower vegetation cover were not smaller or lighter than nests in parks with higher vegetation cover. Nests adjacent to streets contained more pine needles than nests in parks. In addition, in nests adjacent to streets, nests from boxes attached to pine trees contained more pine needles than nests from boxes attached to other trees. We suggest that urban-related alterations in vegetation cover do not directly impose physical limits on nest size in species that are opportunistic in the selection of nesting material. However, nest composition as reflected in the use of pine needles was clearly affected by habitat type and the planted tree species present, which implies that rapid habitat change impacts nest composition. We do not exclude that urbanization might impact other aspects of nest building behaviour not covered in our study (e.g. costs of searching for nest material), and that the strengths of the associations between urbanization and nest structures might differ among study populations or species.  相似文献   
230.
Eliciting representative samples of personal networks   总被引:1,自引:0,他引:1  
In this paper we introduce and evaluate a method for eliciting a representative sample of total personal networks. First names were used as a cue to elicit a sample of 14 alters from 712 respondents through a telephone interview. Network characteristics for each respondent were calculated as averages and proportions across the 14 alters. These were compared to other studies using more specialized network generators. Our method produced results which are logically consistent with those expected from a generator that elicits a sample from the total rather than a specialized subset of the total network. The proportions of kin relations, average tie strength and frequency of contacts are found to be lower than network generators designed to elicit networks of social support. Given our conclusion that the sample is representative of the total network, we examine the varying characteristics of respondents and their networks based on the domination of a particular relation type in their network. This analysis provides answers to such questions as ‘What characteristics of respondents account for the proportion of family relations in their network?‘ and ‘What are the similarities between respondents whose networks are made up of mostly work-related relations?’  相似文献   
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