首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   257篇
  免费   13篇
各国政治   27篇
工人农民   4篇
世界政治   34篇
外交国际关系   17篇
法律   128篇
中国共产党   1篇
政治理论   57篇
综合类   2篇
  2024年   2篇
  2023年   3篇
  2022年   4篇
  2021年   6篇
  2020年   7篇
  2019年   17篇
  2018年   25篇
  2017年   16篇
  2016年   15篇
  2015年   13篇
  2014年   12篇
  2013年   33篇
  2012年   12篇
  2011年   10篇
  2010年   13篇
  2009年   15篇
  2008年   10篇
  2007年   16篇
  2006年   8篇
  2005年   9篇
  2004年   7篇
  2003年   2篇
  2002年   2篇
  2001年   1篇
  2000年   3篇
  1999年   2篇
  1998年   2篇
  1992年   1篇
  1991年   1篇
  1990年   1篇
  1987年   1篇
  1978年   1篇
排序方式: 共有270条查询结果,搜索用时 15 毫秒
151.
Abstract

Hezbollah is a holistic network whose social, political, military and cultural dimensions are all parts of a discourse of resistance. Conducting a qualitative frame analysis of speeches by Hezbollah’s General Secretary Nasrallah, supported by interviews with Hezbollah leadership privy to its ideology, this study analyses the construction of muqawama (resistance). It argues that resistance is a complex social phenomenon, which can be manifested, for example, in the differences in how resistance is framed in varying contexts, often addressing different audiences. However, three unifying themes emerged from the frame analysis: diversity of resistance, normalisation of resistance and social dimensions of resistance.  相似文献   
152.
153.
Marco Pani 《Public Choice》2011,148(1-2):163-196
This paper analyzes how corruption alters policy decisions in democracy, and examines whether this distortion can result in a long-term persistence of corruption even when the voters are well informed and rational. By applying a citizen-candidate model of representative democracy, the paper analyzes how corruption distorts the allocation of resources between public and private consumption, altering the policy preferences of elected and nonelected citizens in opposite directions. The outcome is a reduction in real public expenditure and, if the median voter??s demand for public goods is sufficiently elastic, a reduction in taxes. In this case, some citizens benefit indirectly from corruption. The paper also presents some empirical evidence that, in democratic countries, corruption results in lower tax revenue, and proceeds to show that, when this occurs, citizens anticipating a shift in preferences in favor of public expenditure may support institutions that favor corruption. This result complements the findings of other studies that have attributed the persistence of corruption in democracy to some failure on the part of the voters or the electoral system. It also bears implications for developing effective anticorruption strategies and for redefining the role that can be played by the international community.  相似文献   
154.
The organic components of gunshot residue (OGSR, also called firearms discharge residue (FDR) or cartridge discharge residue (CDR)) have been studied and discussed in the literature. These residues, consisting of particulates such as burned and unburned powder as well as molecular compounds, are rarely used in casework except for purposes such as shooting reconstructions. Molecular compounds that survive the firing event or that are created as a result of the firing event could, with focused research and development, open a new avenue for forensic gunshot residue analysis. In this study, the persistence of organic gunshot residue was evaluated using diphenylamine (DPA) as a target analyte and ion mobility spectrometry (IMS) as the detection system. Samples were collected from hands using a solvent swabbing technique and the swab was analyzed using direct thermal desorption for sample introduction into the IMS. OGSR was found to persist for at least 4h. Although DPA is a widely used industrial compound, analysis of numerous blank and background samples (n~100) did not show any significant response for DPA using this detector. Variations were noted among individuals and as such, the data set does not support estimation of a half-life as has been done for traditional primer residues. No secondary transfers were observed, suggesting the possibility of skin adhesion via interactions between the lipophilic organic compounds and skin lipids. IMS proved valuable as a means of generating patterns for forensic pattern matching and shows promise as a screening tool applied to firearms discharge.  相似文献   
155.
Abstract: Variations in gunshot residue (GSR) compositions are used in the reconstruction of shooting incidents. In this study, GSR samples taken from seven different locations around and in the firearm were collected and analyzed using scanning electron microscopy/energy dispersive X‐ray analysis. Four different types of ammunition were applied. Very low correlations were found when different ammunition were used. This clearly shows that it is possible to differentiate between ammunition types. When the same ammunition was used, high correlations were found between samples taken from external positions (such as hands of shooter, bullet‐entrance holes) but poor correlation was found between internal samples (such as firearm barrel, cartridge case) and external samples. A high degree of association was found between samples that simulated victim and shooter. These findings clearly demonstrate that GSR comparison studies are meaningful but care needs to be taken when choosing suitable exhibits. External samples (such as hands of shooter, bullet‐entrance holes) are more suitable candidates than internal samples (barrel of the firearm, cartridge case).  相似文献   
156.
Abstract: A critical review of Kahana and Hiss’ study on identification from bone trabecular pattern and a test of their method conducted on the humerus are presented. Bone trabecular pattern was studied through the generation of a numerical file representing the gray scale. Using the correlation coefficient, several pairwise comparisons between numerical files were performed. The test gave nearly 30% of incorrect exclusions (the method did not recognize couples of radiographs belonging to the same subject) and 50% of misidentifications (the method recognized couples of radiographs belonging to different subjects, as belonging to the same subject); therefore, this research shows that at the present time, it is not possible to safely quantify identification through bone density patterns, of the proximal humerus taken from thoracic X‐rays. Thus, an “easy”—but dangerous—use of trabecular density patterns on this specific type of radiogram as an identification method should be currently avoided.  相似文献   
157.
The main idea behind age assessment in adults is related to the analysis of the physiological degeneration of particular skeletal structures with age. The main issues with these procedures are due to the fact that they have not been tested on different modern populations and in different taphonomic contexts and that they tend to underestimate the age of older individuals. The purpose of this study was to test the applicability and the reliability of these methods on a contemporary population of skeletal remains of 145 elderly individuals of known sex and age. The results show that, due to taphonomic influences, some skeletal sites showed a lower survival. Therefore, the methods with the highest percentage of applicability were Lovejoy (89.6%) and Rougé‐Maillart (81.3%), followed by Suchey‐Brooks (59.3%), and those with the lowest percentage of applicability were Beauthier (26.2%) and Iscan (22.7%). In addition, this research has shown how for older adults the study of both acetabulum and auricular surface may be more reliable for aging. This is also in accordance with the fact that auricular surface and the acetabulum are the areas more frequently surviving taphonomic insult.  相似文献   
158.
Entomotoxicology involves the analysis of the presence and the effects of toxicological substances in necrophagous insects. Results obtained by entomotoxicological studies may assist in the investigation of both the causes and the time of death of humans and animals. Ethylene glycol (EG) is easy to purchase, sweet and extremely toxic. It may be consumed accidentally or purposefully, in an attempt to cause death for suicidal or homicidal intent. Several cases report fatalities of humans and animals. The present study is the first to examine the effects of EG on the survival, developmental rate and morphology of two blowfly species, (Diptera: Calliphoridae) typically found on corpses and carcasses: Lucilia sericata (Meigen) and L. cuprina (Wiedemann). Both species were reared on substrates (beef liver) spiked with three different concentrations of EG that could cause death in either a human or cat: 1/2LD50 (T1), LD50 (T2), 2LD50 (T3), in addition to a control treatment (C) with no EG.Results of this research show that: a) both species are unable to survive if reared on a food substrate spiked with the highest concentration of EG (T3), while lower and medium concentrations (T1, T2) affect, but not prevent, the survival and the completion of the life cycle of such species; b) adults of L. sericata eclose only in C and T1, while adults of L. cuprina in both C, T1, T2; however, c) the developmental time of both species reared in T1 and T2 is statistically slower than the control; d) the body length of the immatures of both of the species reared in T1 and T2 is statistically smaller than the control.  相似文献   
159.
This article aims to introduce some features of the literary output of Gling-ras-pa Padma rdo-rje, who was the teacher of the ‘Brug-pa bKa’-brgyud-pa school’s founder, gTsan-pa rGya-ras Ye-shes rdo-rje (1161–1211) in Tibet. The work that I draw upon here is titled A Torch of Crucial Points. A Condensation and Presentation of all Dharmas that are to be Practiced (gCes pa bsdus pa’i sgron ma ‘am| bslabs par bya ba’i chos thams cad mdor bsdus te bstan pa), a presentation of the entire outline of Buddhist practice that resembles the doctrinal stages (bstan rim) literary genre. Based on an edition and translation of the fifth chapter of the 17 that comprise the work, here I focus on several concepts, such as the three natures (trisvabhāva) and the allground consciousness (ālayavijñāna), that pertain to the system of Yogācāra and the terminology related to it. These are shown as they appear in the framework of the work, which is heavily influenced by the tradition of Mahāmudrā and the background of its author’s life as a wandering yogin in the lineage of Mi-la ras-pa (1040–1132).  相似文献   
160.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号