全文获取类型
收费全文 | 448篇 |
免费 | 11篇 |
专业分类
各国政治 | 23篇 |
工人农民 | 8篇 |
世界政治 | 50篇 |
外交国际关系 | 33篇 |
法律 | 180篇 |
中国政治 | 4篇 |
政治理论 | 153篇 |
综合类 | 8篇 |
出版年
2023年 | 3篇 |
2022年 | 4篇 |
2021年 | 2篇 |
2020年 | 7篇 |
2019年 | 6篇 |
2018年 | 6篇 |
2017年 | 16篇 |
2016年 | 3篇 |
2015年 | 8篇 |
2014年 | 5篇 |
2013年 | 94篇 |
2012年 | 11篇 |
2011年 | 15篇 |
2010年 | 7篇 |
2009年 | 13篇 |
2008年 | 20篇 |
2007年 | 17篇 |
2006年 | 11篇 |
2005年 | 16篇 |
2004年 | 21篇 |
2003年 | 16篇 |
2002年 | 8篇 |
2001年 | 9篇 |
2000年 | 11篇 |
1999年 | 8篇 |
1998年 | 12篇 |
1997年 | 7篇 |
1996年 | 7篇 |
1995年 | 9篇 |
1994年 | 11篇 |
1993年 | 6篇 |
1992年 | 6篇 |
1991年 | 4篇 |
1990年 | 6篇 |
1989年 | 3篇 |
1988年 | 5篇 |
1987年 | 3篇 |
1986年 | 3篇 |
1985年 | 8篇 |
1984年 | 5篇 |
1983年 | 7篇 |
1982年 | 3篇 |
1981年 | 8篇 |
1978年 | 3篇 |
1976年 | 1篇 |
1973年 | 1篇 |
1972年 | 3篇 |
1971年 | 1篇 |
排序方式: 共有459条查询结果,搜索用时 15 毫秒
71.
The relationship between life satisfaction, risk-taking behaviors, and youth violence 总被引:1,自引:0,他引:1
MacDonald JM Piquero AR Valois RF Zullig KJ 《Journal of interpersonal violence》2005,20(11):1495-1518
This study builds on existing criminological theories and examines the role of life satisfaction and self-control in explaining youth violence. Using data from a stratified cluster sample of 5,414 public high school students who responded to the South Carolina Youth Risk Behavior Survey, the study examines the relationship between adolescents'perceptions of life satisfaction, behavioral risky acts, and self-reported acts of violence. Analyses indicate that higher levels of life satisfaction are associated with lower violence. Participation in work and involvement in health-related risk-taking behaviors pertaining to sex, drugs, and alcohol are also associated with increased violence. The implications of these findings for criminological theory and for school-based violence prevention programs are discussed. 相似文献
72.
We compare unanimity rule and majority rule in their abilities to produce Pareto superior and Pareto optimal alternatives in fixed number of rounds of voting using a two-dimensional spatial voting model with random proposals, sincere proposals, and strategic proposals. Our findings show that for random or sincere proposals, majority rule is at least as likely to select a Pareto optimal outcome as unanimity rule. For strategic proposals, the subgame perfect equilibrium under unanimity rule is Pareto optimal. For other k-majority rules, the outcome is Pareto optimal or very close to it. For outcomes that are both Pareto optimal and Pareto superior, unanimity rule outperforms majority rule. 相似文献
73.
Sex determination is a necessary step in the investigation of unidentified human remains from a forensic context. Teeth, as one of the strongest tissues in the human body, can be used for this purpose. Most studies of sexual dimorphism in teeth are based on the traditional mesiodistal and buccolingual crown measurements. The purpose of this study is to examine the degree of sexual dimorphism in permanent molars of modern Greeks using crown and cervical diagonal diameters, and to evaluate their applicability in sex determination. A total of 344 permanent molars in 107 individuals (53 male and 54 female) from the Athens Collection were examined. Crown and cervical diagonal diameters of both maxillary and mandibular molars were measured. It was found that males have larger molars than females and in 19 out of 24 dimensions measured male molars exceeded female molars significantly (P<0.05). The most dimorphic molars are the maxillary second molar, and the mandibular second and first molars. Although other molars were also sexually dimorphic they did not have a statistically significant difference in all dimensions. Cervical diagonal diameters have found to be more sexually diamorphic than crown diagonal diameters. In discriminant function analysis the variables entered more frequently were the cervical diagonal diameters mainly of mandibular molars. Classification accuracy was found to be 93% for the total sample, 77.4% for upper jaw, and 88.4% for the lower jaw. Accuracy rates were higher for cervical than crown diagonal diameters. The data generated from the present study suggest that this metric method can be useful and reliable for sex determination, especially when the traditional dental measurements are not applicable. 相似文献
74.
ABSTRACTThis article develops a framework for conceptualising authoritarian governance and rule in the Lao People’s Democratic Republic. After introducing the national and academic context, which go a significant way towards understanding the paucity of comparative political work on Laos, we propose an approach to studying post-socialist authoritarian and single-party rule that highlights the key political-institutional, cultural-historical and spatial-environmental sources of party-state power and authority. In adopting this approach, we seek to redirect attention to the centralising structures of rule under the Lao People’s Revolutionary Party, illustrating how authoritarian institutions of the “party-state” operate in and through multiple scales, from the central to the local level. At a time when the country is garnering greater attention than at any time since the Vietnam War, we argue that this examination of critical transitions in Laos under conditions of resource-intensive development, intensifying regional and global integration, and durable one-party authoritarian rule, establishes a framework for future research on the party-state system in Laos, and for understanding and contextualising the Lao People’s Revolutionary Party regime in regional comparative perspective. 相似文献
75.
Exit,voice and loyalty: Analytic and empirical developments 总被引:4,自引:0,他引:4
Dowding Keith John Peter Mergoupis Thanos Van Vugt Mark 《European Journal of Political Research》2000,37(4):469-495
Abstract. This paper seeks to reconstruct and revitalize the famous Hirschman framework by providing a comprehensive review of the current use of 'exit, voice and loyalty'. We begin by critically examining Hirchman's original account, and then look at the way his argument has been extended in different fields both conceptually and empirically. We suggest that while advances have been made, the results so far are somewhat disappointing given the perceptiveness of the original insight. We believe this is because his apparently simple schema is more complex than it first appears, and different aspects of exit, of voice, and of empirical foundations of loyalty need to be analytically distinguished in order to produce testable empirical hypotheses about their relationships. 相似文献
76.
Gabriel Escarela Brian Francis Keith Soothill 《Journal of Quantitative Criminology》2000,16(4):385-414
A statistical procedure is developed to analyze recidivism in samples whichare subject to the presence of desisters and to multiple modes ofreconviction. This allows for a more accurate study of individuals'transition and hazard in the type and timing of offenses following aspecific type of conviction. The use of a nonparametric approach forinvestigating failure in the presence of other acting causes is shown;initial estimators of the probabilities of reconviction for different typesof offenses are obtained, and the method can be used both to display thedata and to choose an appropriate parametric family for the survivaltimes. An exponential mixture model for competing risks is presented insuch a way that it allows us to adjust for concomitant variables and toassess their effects on the probabilities both of reconviction forpredetermined types of offenses and desistance and of the hazards ofreconviction; a method for assessing calibration of predicted survivalprobabilities is suggested. A 21-year follow-up of persons convicted ofindecent assault on a female in 1973 illustrates the methods; we find ahigh probability of sexual reconviction for individuals with previoussexual convictions and evidence of diversity and a raised hazard ofreconviction for young chronic offenders. 相似文献
77.
78.
This article provides the first analysis of gendered promotion issues for cabinet ministers using most-similar systems design for three “Westminster-style” governments: Australia, Canada, and New Zealand. Using individual-level data and controlling for biographical, institutional, and country effects we find, in common with earlier literature, that women are more likely to be given less prestigious cabinet posts and be assigned to “feminine” portfolio. Using both sequence and event history analysis, we see the careers of men and women starkly diverge. We find that women are less likely to be promoted than men but find no relationship between prestigious portfolio and promotion. However, feminine portfolio assignments decrease the promotion prospects for women yet increase them for men. 相似文献
79.
Application of Enhanced Point Estimators to a Sample of In Vivo CT‐derived Facial Soft Tissue Thicknesses 下载免费PDF全文
Connie L. Parks M.A. Kelsey M. Kyllonen M.A. Keith L. Monson Ph.D. 《Journal of forensic sciences》2017,62(4):994-997
Facial approximations based on facial soft tissue depth measurement tables often utilize the arithmetic mean as a central tendency estimator. Stephan et al. (J Forensic Sci 2013;58:1439) suggest that the shorth and 75‐shormax statistics are better suited to describe the central tendency of non‐normal soft tissue depth data, while also accommodating normal distributions. The shorth, 75‐shormax, arithmetic mean, and other central tendency estimators were evaluated using a CT ‐derived facial soft tissue depth dataset. Differences between arithmetic mean and shorth mean for the tissue depths examined ranged from 0 mm to +2.3 mm (average 0.6 mm). Differences between the arithmetic mean plus one standard deviation (to approximate the same data points covered by the 75‐shormax) and 75‐shormax values ranged from ?0.8 mm to +0.7 mm (average 0.2 mm). The results of this research suggest that few practical differences exist across the central tendency point estimators for the evaluated soft tissue depth dataset. 相似文献