全文获取类型
收费全文 | 1813篇 |
免费 | 137篇 |
专业分类
各国政治 | 175篇 |
工人农民 | 111篇 |
世界政治 | 256篇 |
外交国际关系 | 120篇 |
法律 | 982篇 |
中国政治 | 2篇 |
政治理论 | 304篇 |
出版年
2023年 | 31篇 |
2022年 | 17篇 |
2021年 | 47篇 |
2020年 | 68篇 |
2019年 | 77篇 |
2018年 | 122篇 |
2017年 | 140篇 |
2016年 | 111篇 |
2015年 | 76篇 |
2014年 | 103篇 |
2013年 | 291篇 |
2012年 | 84篇 |
2011年 | 70篇 |
2010年 | 38篇 |
2009年 | 29篇 |
2008年 | 63篇 |
2007年 | 61篇 |
2006年 | 60篇 |
2005年 | 53篇 |
2004年 | 58篇 |
2003年 | 55篇 |
2002年 | 46篇 |
2001年 | 36篇 |
2000年 | 42篇 |
1999年 | 17篇 |
1998年 | 10篇 |
1997年 | 6篇 |
1996年 | 5篇 |
1995年 | 7篇 |
1994年 | 10篇 |
1993年 | 9篇 |
1992年 | 9篇 |
1991年 | 8篇 |
1990年 | 6篇 |
1989年 | 5篇 |
1988年 | 8篇 |
1987年 | 6篇 |
1984年 | 3篇 |
1983年 | 3篇 |
1982年 | 4篇 |
1980年 | 4篇 |
1979年 | 6篇 |
1978年 | 6篇 |
1977年 | 2篇 |
1973年 | 8篇 |
1972年 | 4篇 |
1971年 | 7篇 |
1967年 | 2篇 |
1965年 | 4篇 |
1963年 | 2篇 |
排序方式: 共有1950条查询结果,搜索用时 15 毫秒
151.
In the analysis of human skeletal or otherwise unidentifiable remains the assessment of sex is an initial vital element when rendering a biological profile. As such other aspects of the biological profile are sex-specific (e.g. stature and age) and cannot be successfully determined without this preliminary assessment. In addition, the estimation of stature is an essential parameter of the biological profile, which is often used to confirm or exclude presumptive identifications.The purpose of this study is to present newly developed local identification criteria for the estimation of sex from the postcrania and stature for Chileans. Linear discriminant functions were derived for the humerus and femur. Sexing accuracies of 87%, 86%, and 82% were achieved. Furthermore, new univariate predictive stature equations are presented using a Bayesian approach for the humerus, femur and tibia. 相似文献
152.
153.
154.
155.
156.
157.
Do Stefanie Coumans Juul M. J. Börnhorst Claudia Pohlabeln Hermann Reisch Lucia A. Danner Unna N. Russo Paola Veidebaum Toomas Tornaritis Michael Molnár Dénes Hunsberger Monica De Henauw Stefaan Moreno Luis A. Ahrens Wolfgang Hebestreit Antje 《Journal of youth and adolescence》2022,51(6):1106-1117
Journal of Youth and Adolescence - Knowing the extent to which mental well-being and stressful life events during adolescence contribute to personality characteristics related to risk-taking... 相似文献
158.
Pedro Cabán 《New Political Science》2013,35(1-2):191-216
Abstract Puerto Rico's significance for the US state and imperialism has gradually deteriorated. In the context of recent global changes and new developments in the US political economy the logic that justified colonial control cannot be sustained. However, an array of counteracting political and economic forces are conspiring to overcome the altered material and geopolitical conditions that make evident the need for Puerto Rico's decolonization. Colonialism has given rise to an array of forces that impedes any changes in Puerto Rico's formal political status. Where once the US state, corporate capital and the dominant political forces in Puerto Rico were in relative agreement on sustaining the colonial enterprise, a new constellation of competing forces has emerged. Within Puerto Rico proponents for the status, quo and those who agitate for statehood have reached virtual electoral parity. Monopoly “capital, primarily in Pharmaceuticals, dominates the local economy. However, it is challenged by North American unions and their congressional allies who seek to rescind the lucrative fiscal policies that account for these firms exorbitant profits. Agencies of the US state and congressional committees are at odds on what needs to be done to sustain an unmanageable, increasingly expensive and anachronistic colony. This essay presents a framework for examining the array of forces and conditions that continue to erode the colonial relation and that explains colonialism's fragility in the current period of global readjustment. 相似文献
159.
160.