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Sergio Galeano M.Sc. Mari Luz García‐Lorenzo Ph.D. 《Journal of forensic sciences》2014,59(6):1602-1606
The effects of calcination (400–1200°C) on pig bones have been studied using powder X‐ray diffraction (XRD) and secondary modifications, such as color change and weight loss. The characterisation by powder XRD confirmed the presence of the crystalline phase of hydroxyapatite, and comparison of the results obtained at different temperatures suggested that at 650°C, all the organic components and carbonate substitutions were completely removed. Accordingly, these samples were white. In addition, the crystallinity degree and the crystallite size progressively increased with the calcination temperature until 650°C, remaining stable until 1200°C. Below 650°C, bone samples presented organic compounds, resulting in background noise in the diffractogram and gray or black color. In addition, impurities in the lattice correspond to low crystallite sizes. 相似文献
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This article tests the hypothesis of opportunistic and partisan cycle models using a new large data set of Brazilian municipalities over the 1989?C2005 period. The results show an increase in total and current expenditures and a decrease in municipal investments, local tax revenues, and budget surplus in election years. They also show that partisan ideology exerts a relative influence on the performance of the local public accounts. These results confirm that both opportunistic and partisan cycles have occurred in the management of the budgets of Brazilian municipalities after the end of the military government. 相似文献
104.
In a period of ongoing public sector reform in the United States (US), federal government agencies have been pushed to find new ways of performing their public functions more effectively and efficiently. Frontline public sector employees are a particularly vital source of innovations in organisational function and form. This study seeks to identify factors that motivate front line employees in the US federal bureaucracy to engage in innovative behaviour. The empirical analysis is based on data from the 2006 Federal Human Capital Survey. The results show that a constellation of factors encourage bottom‐up innovation, including the expectancy of innovation being rewarded, employee training and development, employee empowerment and involvement in decision‐making, and high‐exchange dyadic relationships with supervisors. 相似文献
105.
This special issue aims at analyzing music as a site of social semiosis, i.e., at investigating the manifold ways in which music is constituted as a socially shared event. The papers collected here follow three main threads, considered as central aspects of music making: studying the kind of coordination and participation required to make music together; looking at the semiotic resources employed by musicians to construct their roles in interaction; examining the relationship between language and music. A variety of perspectives is adopted, ranging from social semiotics to conversation analysis, anthropology, multimodal analysis, and critical discourse analysis. Such a variety is also reflected in the musical traditions – Western art music, jazz, gospel, church hymns, pop music – and in the settings under examination, which comprise instructional activities like musical classes and rehearsals, as well as ordinary conversations and written accounts of musicians' biographies. Issues of epistemicity and authority, intersubjectivity, correction of musical action, solidarity, and ideology are thereby addressed. The issue thus aims at exploring the richness and complexity of music making as a social practice, and documents how the integration of different disciplinary perspectives can offer fruitful insights on music as a domain of sociality which lies at the intersection of aurality and writing, norm and creativity, individuality and collectiveness. 相似文献
106.
Sergio Biggemann Kristina Klimovich Clive S. Thomas 《Journal of Public Affairs (14723891)》2014,14(3-4):254-282
Bolivia's political development has been characterized by elitist control set in an environment of political instability and a weak decentralized state. Since the 1980s and Bolivia's transition to a limited form of democracy, this elitist control has been successfully challenged from the left and, since the early 2000s, particularly by the indigenous population. In fact, Bolivian contemporary politics and interest group activity have been shaped mainly by the rise in political power of the left and indigenous interests. This rise, given a weak state transitioning to limited democracy, has had several consequences for interest group activity that add increasing complexity to the group system. One consequence of Bolivia's course of political development is that, although it exhibits many common elements of interest group activity explained by existing group theories, aspects of its group development are not adequately accounted for by these theories. In addition, there are questions about whether the new configuration of interest groups promotes or undermines democracy. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
107.
Bert Vander Vennet Sergio Schneider Joost Dessein 《The Journal of peasant studies》2016,43(2):396-418
Soy is often perceived as a typical example of a homogenous capitalist agricultural model that is responsible for ecological damage and social conflicts. But this monolithic perception of soy production can be challenged: more than 30 percent of the soy producers in Rio Grande do Sul (Brazil) are family farmers. In this contribution, we study soy production, the soy producers and their institutional environment from an actor-oriented perspective. We have uncovered different farming styles behind soy production: the colonial farmer, the niche farmer and the entrepreneurial farmer. The farming styles differ from each other not only in the farming system, but also in attitudes (for example, towards the forest). We found that the institutional environment and the technology are mainly focused on the entrepreneurial farmer. However, also, non-governmental organizations (NGOs) neglect the existence of small-scale soy producers. These results have several repercussions for further analysis of this problematic crop and how it can shift towards a more sustainable agricultural production model as small-scale farmers might produce soy more sustainably. 相似文献
108.
Sergio Herzog 《Crime, Law and Social Change》2005,44(3):301-326
The present study tests the applicability of the consensus versus the conflict model of criminal law in the case of homicide, and euthanasia, in particular. Although most criminal statutes consider euthanasia to be a serious homicide, many studies have revealed increasing public support for it. A survey of a national sample of Israeli respondents, based on a factorial design methodology, was conducted to determine the extent to which the criminal law reflects general or particular public attitudes toward euthanasia. The findings revealed that although social groups varied in their views on the seriousness of euthanasia, the public at large perceived it as significantly less serious than any other type of homicide. These findings are compatible with calls for reassessment of the criminal law with regard to euthanasia. 相似文献
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