全文获取类型
收费全文 | 1937篇 |
免费 | 117篇 |
专业分类
各国政治 | 127篇 |
工人农民 | 86篇 |
世界政治 | 159篇 |
外交国际关系 | 136篇 |
法律 | 862篇 |
中国政治 | 11篇 |
政治理论 | 648篇 |
综合类 | 25篇 |
出版年
2023年 | 16篇 |
2022年 | 18篇 |
2021年 | 21篇 |
2020年 | 66篇 |
2019年 | 70篇 |
2018年 | 78篇 |
2017年 | 113篇 |
2016年 | 95篇 |
2015年 | 67篇 |
2014年 | 68篇 |
2013年 | 241篇 |
2012年 | 86篇 |
2011年 | 77篇 |
2010年 | 73篇 |
2009年 | 71篇 |
2008年 | 82篇 |
2007年 | 73篇 |
2006年 | 68篇 |
2005年 | 62篇 |
2004年 | 60篇 |
2003年 | 46篇 |
2002年 | 53篇 |
2001年 | 37篇 |
2000年 | 31篇 |
1999年 | 29篇 |
1998年 | 30篇 |
1997年 | 16篇 |
1996年 | 22篇 |
1995年 | 26篇 |
1994年 | 18篇 |
1993年 | 14篇 |
1992年 | 15篇 |
1991年 | 22篇 |
1990年 | 17篇 |
1989年 | 14篇 |
1988年 | 12篇 |
1987年 | 12篇 |
1986年 | 17篇 |
1985年 | 17篇 |
1984年 | 12篇 |
1983年 | 5篇 |
1982年 | 14篇 |
1981年 | 6篇 |
1980年 | 14篇 |
1979年 | 8篇 |
1978年 | 4篇 |
1977年 | 6篇 |
1972年 | 4篇 |
1967年 | 5篇 |
1966年 | 3篇 |
排序方式: 共有2054条查询结果,搜索用时 0 毫秒
361.
362.
Abstract For many observers, the recession of the early 1990s signaled the end of what Berry called islands of renewal in seas of decay. In the past decade, however, shifts in mortgage finance have intersected with developments in assisted housing to alter the links between gentrification and housing policy. In this article, we use field observation, Home Mortgage Disclosure Act data, and HOPE VI plans to analyze the resurgence of gentrification in eight U.S. cities. Between 1992 and 1997, gentrified neighborhoods attracted conventional homepurchase mortgage capital at a rate that grew at more than 2.3 times the suburban rate. Logit models confirm that mortgage capital favors gentrified neighborhoods even after controlling for applicant and loan characteristics, suggesting a new relationship between mortgage lending and neighborhood change. In some cities, gentrification has surrounded islands of decay and poverty with landscapes of renewal 相似文献
363.
Daniel Simonet 《Journal of Public Affairs (14723891)》2013,13(3):260-271
New public management (NPM) is not only an Anglo‐Saxon debate but also a French one, with some of its elements constituting structural components of the French state apparatus. How did it make its way into French hospitals? What core mechanism was at the center of NPM implementation in hospitals? We discuss the redisorganization of the health system under NPM, as it attempted to reassert the central government's power over regions and how it alienated the medical profession. The paper highlights inherent contradictions and other false promises within NPM. It was unable to contained cost, could no enhance accountability or increase civil participation. We then investigate post‐NPM reforms in French healthcare. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
364.
365.
It is disputed whether trade liberalisation processes are sufficient for reducing poverty and inequality. We explore how ‘gains from trade’ have been distributed in the two minor trade partners of Mercosur, Uruguay and Paraguay, by analysing the impact of trade liberalisation on poverty and inequality through two main transmission channels: prices and income. In the case of Uruguay, trade liberalisation favoured a reduction in poverty indicators but had an almost zero effect on income inequality. In the case of Paraguay, trade liberalisation had a markedly negative impact in terms of poverty yet income distribution improved. We conclude that in the case of Mercosur, the effect of trade on poverty and income inequality varies per country and per region. In particular, we conclude that trade integration policies cannot be regarded as ‘poverty-alleviating’ per se. 相似文献
366.
J. Daniel Khavgpom 《发展研究杂志》2013,49(3):293-306
This paper investigates the effects of various socioeconomic variables on fertility rates, with special reference to the United States. Most of the results are consistent with the earlier cross‐sectional results of Adelman, Drakatos, et. al. More specifically it appears that such socioeconomic variables as age structure, education, per capita income, population, density, and urbanization influence birth rates in both developing and developed countries. Both linear and logarithmic forms are used to estimate birth rates. In the final portions of the paper an attempt is made to reconcile those cases in which the results were not consistent with some of the earlier findings. 相似文献
367.
Géraldine Maujean M.D. Tiphaine Guinet M.D. Laurent Fanton Ph.D. Daniel Malicier Ph.D. 《Journal of forensic sciences》2013,58(4):1069-1070
A 27‐year‐old man was found dead in an advanced decomposition stage at home. On external examination, his body showed petechial hemorrhages of the skin. At autopsy, petechial hemorrhages of the epicardium were found, but no sign of meningitis was detected. Toxicological investigations remained negative. Bacteriological conventional analyses showed no significant result. Neisseria meningitidis serogroup B was finally isolated on cerebrospinal fluid by a specific real‐time polymerase chain reaction. To our knowledge, there are no available data about the postmortem diagnosis of an infectious cause of death in a decomposed corpse. In such situations, the polymicrobial overgrowth usually hampers the interpretation of bacteriological conventional methods and questions their diagnostic value. Such molecular bacteriological approaches appear to constitute an important diagnostic tool for forensic scientists and should be widely processed in case of suspected infectious death or sudden death whatever the postmortem interval. 相似文献
368.
Daniel Ramos Ph.D. Joaquin Gonzalez‐Rodriguez Ph.D. Grzegorz Zadora Ph.D. Colin Aitken Ph.D. 《Journal of forensic sciences》2013,58(6):1503-1518
Performance of likelihood ratio (LR) methods for evidence evaluation has been represented in the past using, for example, Tippett plots. We propose empirical cross‐entropy (ECE) plots as a metric of accuracy based on the statistical theory of proper scoring rules, interpretable as information given by the evidence according to information theory, which quantify calibration of LR values. We present results with a case example using a glass database from real casework, comparing performance with both Tippett and ECE plots. We conclude that ECE plots allow clearer comparisons of LR methods than previous metrics, allowing a theoretical criterion to determine whether a given method should be used for evidence evaluation or not, which is an improvement over Tippett plots. A set of recommendations for the use of the proposed methodology by practitioners is also given. 相似文献
369.
Purpose
Scholarship suggests that prison visitation is important because it allows inmates access to social ties that, in turn, can offset social isolation and help inmates cope with the transition back into society upon release. Only a small number of empirical assessments of visitation exist, however, and existing studies have typically overlooked how the heterogeneity inherent in visitation may influence whether visitation is beneficial, harmful, or has no effect. The goal of this paper is to develop a conceptual framework for theorizing this heterogeneity and its impacts, evaluating visitation research, and guiding future research aimed at estimating visitation effects.Methods
The paper reviews theory and research on inmate visitation. In so doing, it systematically examines heterogeneity in visitation and the implications of this heterogeneity.Results
The paper identifies five dimensions—visitation timing, longitudinal patterns in visitation, visitor type, visitation experiences, and inmate characteristics—that can be used to characterize visitation events or patterns that, themselves, may have varied effects on in-prison outcomes and reentry outcomes.Conclusions
More nuanced theories of, and empirical research on, inmate visitation are needed both to understand better the implications of visitation, and inmate social ties more broadly, and to advance theory, research, and policy. 相似文献370.
In the United States, studies of maternal infanticide (and female violent behavior in general) have been rare. Children represent about 35% of female perpetrated homicide victims and there is reason to believe that this number may be significantly higher based on estimates concerning SIDS deaths. Infants face a homicide rate approximately four times higher than that of the general population in much of the industrialized world. Infanticide has historically been relegated to the legal category of homicide in the U.S. This is significantly different than in most industrialized countries. This article argues that the lack of specific public, legal, and medical policy in the United States concerning infanticide results in random inequity of charges, dispositions, sanctions, and treatment of offenders. This situation is unnecessary as demonstrated by British and European legal systems, and is in direct opposition to the policy of minimizing disparity. 相似文献