全文获取类型
收费全文 | 1123篇 |
免费 | 44篇 |
专业分类
各国政治 | 45篇 |
工人农民 | 174篇 |
世界政治 | 75篇 |
外交国际关系 | 51篇 |
法律 | 544篇 |
中国政治 | 14篇 |
政治理论 | 259篇 |
综合类 | 5篇 |
出版年
2023年 | 7篇 |
2021年 | 4篇 |
2020年 | 10篇 |
2019年 | 24篇 |
2018年 | 24篇 |
2017年 | 32篇 |
2016年 | 32篇 |
2015年 | 17篇 |
2014年 | 25篇 |
2013年 | 157篇 |
2012年 | 43篇 |
2011年 | 52篇 |
2010年 | 29篇 |
2009年 | 35篇 |
2008年 | 43篇 |
2007年 | 41篇 |
2006年 | 58篇 |
2005年 | 37篇 |
2004年 | 35篇 |
2003年 | 43篇 |
2002年 | 44篇 |
2001年 | 22篇 |
2000年 | 27篇 |
1999年 | 16篇 |
1998年 | 9篇 |
1997年 | 16篇 |
1996年 | 16篇 |
1995年 | 19篇 |
1994年 | 16篇 |
1993年 | 10篇 |
1992年 | 19篇 |
1991年 | 21篇 |
1990年 | 12篇 |
1989年 | 14篇 |
1988年 | 14篇 |
1987年 | 13篇 |
1986年 | 9篇 |
1985年 | 14篇 |
1984年 | 9篇 |
1983年 | 7篇 |
1982年 | 14篇 |
1981年 | 8篇 |
1980年 | 13篇 |
1979年 | 12篇 |
1978年 | 8篇 |
1977年 | 9篇 |
1976年 | 6篇 |
1975年 | 4篇 |
1974年 | 5篇 |
1973年 | 4篇 |
排序方式: 共有1167条查询结果,搜索用时 203 毫秒
801.
Florez L Gutierrez C Haden-Pinneri K Cervantes M Buja M Anzalone ML Sanchez LA 《The American journal of forensic medicine and pathology》2011,32(2):176-179
Primary breast lymphoma is a rare form of extranodal lymphoma. B cells constitute the most common type involving the breast. T cells represents only 3%. Even though lymphomas have a high predilection to metastasize to the heart, there are no specific clinical or radiological findings, and most of the cases are diagnosed at autopsy. We discuss the case of a 49-year-old woman with primary breast lymphoma who presented with sudden death. Autopsy revealed a primary T-cell lymphoma of the breast with tumoral infiltration of the atrioventricular node and transmural myocardial permeation with focal necrosis. 相似文献
802.
Tiantong Yang M.D. Guanglong He M.D. Xiang Zhang M.D. Lin Chang M.D. Haidong Zhang M.D. Mary G. Ripple M.D. David R. Fowler M.D. Ling Li M.D. 《Journal of forensic sciences》2014,59(1):231-235
The objective of this study was to evaluate the application of Fourier transform infrared (FTIR) spectroscopy for detecting diffuse axonal injury (DAI) in a mouse model. Brain tissues from DAI mouse model were prepared with H&E, silver, and β‐amyloid precursor protein (β–APP) immunohistochemistry stains and were also studied with FTIR. The infrared spectrum images showed high absorption of amide II in the subcortical white matter of the experimental mouse brain, while there was no obvious expression of amide II in the control mouse brain. The areas with high absorption of amide II were in the same distribution as the DAI region confirmed by the silver and β‐APP studies. The result suggests that high absorption of amide II correlates with axonal injury. The use of FTIR imaging allows the biochemical changes associated with DAI pathologies to be detected in the tissues, thus providing an important adjunct method to the current conventional pathological diagnostic techniques. 相似文献
803.
Lynne F. Katz Ed.D. Mary Anne Ullery Ed.D. Cindy S. Lederman 《Juvenile & family court journal》2014,65(2):1-11
The University of Miami Linda Ray Intervention Program (LRIP) is a Part C early intervention program for children under the age of three, with verified developmental delays located in Miami‐Dade County that has established a strong link and referral process from the Juvenile Court as well as local community‐based care agencies. Creating a system where early intervention communicates well with the court system is paramount in changing the well‐being trajectories of these vulnerable children. This article describes the growing need for early intervention services as well as the results of one successful early intervention‐court partnership that has shown promising short and long‐term results for developmentally‐delayed children who were born prenatally exposed to cocaine. 相似文献
804.
This paper examines the growth of transnational networks of innovation and proposes a preliminary classificatory system of four distinct kinds of forces which give rise to social networks that facilitate knowledge flows, relationship building, and collaborative activities important to accessing global markets. The networks may form around a technology sector, be identity based, emerge from a government-led initiative, or be stimulated by a civic or philanthropic organization. Each has a different mode of organizing, financing, and meeting its objectives, as shown by examples presented in the paper. The proposed classification of these characteristics is intended to open a conversation within the social sciences and among policy makers about how better to understand the ways in which transnational networks get formed, operate and produce desired results. 相似文献
805.
David M. Rowe 《安全研究》2013,22(3):407-447
The belief that globalization enhances peace, a central tenet of liberal theory, enjoys substantial support in recent scholarship on trade and conflict. To conclude that liberalism is right, however, is premature and wrong. Liberal theory is not sufficiently grounded in international trade theory to show how globalization generates constraints on military force, nor does it adequately link these constraints to strengthened peace. This article uses the Heckscher-Ohlin model of trade to connect globalization's economic effects to increased constraints on military force and then explores how, in the nineteenth century, globalization affected European peace. As liberal theory predicts, globalization generated substantial constraints on military force in prewar Europe. Yet there are important flaws in liberalism's logic linking these constraints to strengthened international peace. Contrary to liberal theory, globalization did not strengthen prospects for peace in prewar Europe but was a major cause of the First World War. 相似文献
806.
807.
808.
Through a comparison of protracted domestic conflicts in Liberia and Mozambique this paper evaluates several standard explanations regarding the roles of leaders, third parties and domestic social forces in resolving or continuing civil wars in Africa. The paper finds that no single account of how peace is achieved is sufficient to explain the continuance of violence in Liberia and the successful attainment of peace in Mozambique. Rather, an explanation that can accommodate the divergent outcomes of conflict in the two countries must combine insights from elite, structuralist and agency‐based approaches. Furthermore, the paper addresses the ways in which the construction of social organisations, particularly women's groups, during wartime affects the direction of donor funding and the shape of reconstruction efforts after the peace is signed. We illustrate our argument by examining the efforts of leaders, third parties and local actors, particularly women, to perpetuate violence or to bring about peace in Liberia and Mozambique, and the gendered contexts in which donor aid is distributed in the postwar period. 相似文献
809.
Tanya R. Peckmann Ph.D. Mary H. Manhein M.A. Ginesse A. Listi Ph.D. Michel Fournier B.Sc. 《Journal of forensic sciences》2013,58(6):1429-1438
This study examines facial tissue depth in Canadian Aboriginal children. Using ultrasound, measurements were taken at 19 points on the faces of 392 individuals aged 3–18 years old. The relationships between tissue thickness, age, and sex were investigated. A positive linear trend may exist between tissue thickness and age for Aboriginal females and males at multiple points. No points show significant differences in facial tissue depth between males and females aged 3–8 years old; seven points show significant differences in facial tissue depth between males and females aged 9–13 years old; and five points show significant differences in facial tissue depth between males and females aged 14–18 years old. Comparisons were made with White Americans and African Nova Scotians. These data can assist in 3‐D facial reconstructions and aid in establishing an individual's identity. Previously, no data existed for facial tissue thickness in Canadian Aboriginal populations. 相似文献
810.
Much of what is at the heart of social disorganization theory’s approach to neighborhood crime prevention has been ignored in favor of policies that are more closely associated with deterrence and rational choice theories. Specifically, ideas of informal social control and collective efficacy have often been translated into policies of community surveillance and the reporting of suspicious behaviors to the police. While these policies may make neighborhoods less attractive to offenders because they create higher certainty levels of recognition, and subsequently arrest, social disorganization theory, at its heart, suggests crime prevention policies of a very different nature: policies that are more closely associated with restorative justice, re‐integrative shaming and peacemaking criminology. These associations are highlighted and provide a conceptual model for a community crime prevention program that is more consistent with the underlying nature of social disorganization theory. 相似文献