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   804篇
  免费   39篇
各国政治   69篇
工人农民   16篇
世界政治   91篇
外交国际关系   78篇
法律   346篇
中国政治   8篇
政治理论   230篇
综合类   5篇
  2023年   6篇
  2022年   5篇
  2021年   9篇
  2020年   19篇
  2019年   19篇
  2018年   35篇
  2017年   34篇
  2016年   32篇
  2015年   22篇
  2014年   30篇
  2013年   137篇
  2012年   17篇
  2011年   30篇
  2010年   19篇
  2009年   27篇
  2008年   29篇
  2007年   47篇
  2006年   43篇
  2005年   19篇
  2004年   22篇
  2003年   24篇
  2002年   22篇
  2001年   14篇
  2000年   15篇
  1999年   15篇
  1998年   13篇
  1997年   15篇
  1996年   7篇
  1995年   12篇
  1994年   3篇
  1993年   8篇
  1992年   15篇
  1991年   9篇
  1990年   4篇
  1986年   3篇
  1985年   5篇
  1984年   3篇
  1983年   4篇
  1980年   6篇
  1979年   3篇
  1978年   4篇
  1977年   4篇
  1975年   3篇
  1974年   2篇
  1973年   2篇
  1972年   3篇
  1971年   2篇
  1969年   4篇
  1967年   2篇
  1966年   3篇
排序方式: 共有843条查询结果,搜索用时 15 毫秒
201.
202.
This article explores links in the grand strategic outlook of Theodore Roosevelt and Franklin Roosevelt, with particular reference to the influence upon both men of Admiral Alfred Thayer Mahan. It focuses upon an episode during Franklin Roosevelt's tenure as Assistant Secretary of the Navy, when he was in direct correspondence with both Theodore and Mahan on matters of grand strategy and naval policy. The paper argues that Theodore Roosevelt proved a crucial conduit in the formulation of Franklin Roosevelt's grand strategic outlook, both through his promulgation of Mahanian thought and his support of Franklin's correspondence with the Admiral. This in turn would be important later during Franklin Roosevelt's leadership of the United States.  相似文献   
203.
204.
One important way in which individuals and groups express their ideas and principles, and present their proposals and demands, is in the language of identity or difference. They argue that what they value and what they deserve are related to their distinctive identities. Working within the framework of a political theory of recognition, I argue in this article that particular cultural communities may have reasonable expectations that their distinctive identities receive public recognition, and that others may therefore have good reasons to give those identities such recognition. To be specific, I contend that there are distinct and complementary ways in which the state and its citizens should respond to identity-related demands for public recognition. Using terms introduced by Axel Honneth, I argue that the state should give ‘public attention’ to some cultural communities, and that citizens should show one another ‘well-meaning attention’. I conclude that both these forms of attention can be justified by reference to a new, fourth principle of recognition, so long as this is understood as a principle of political inclusion rather than one of cultural recognition.  相似文献   
205.
The article asks whether the tort of conversion should be expanded so as to protect contractual rights. The suggestion, found in recent case law and academic texts, that conversion should protect contractual rights because such rights belong to the law of property is rejected. It is argued that this approach is purely semantic and ignores the fact that contractual rights have different characteristics to other kinds of rights that we typically class as ‘property rights’. The better approach, it is argued, is to ask whether it is actually possible to protect contractual rights through the tort of conversion. The article attempts to show that the absence of certain features from contractual rights, in particular the fact that such rights do not relate to a physical object and are not exigible against the world, makes the expansion of conversion extremely difficult.  相似文献   
206.
Genital swabs play an important role in cases of alleged sexual assault. The aim of our study was to see if epithelial cells from the vagina, glans penis, or mouth could be distinguished on the basis of size. Vaginal swabs were taken from 12 women in different phases of their menstrual cycles; penile swabs were taken from 5 men, and mouth swabs were taken from 6 men and 6 women. For each swab, a sample was smeared across a microscope slide and allowed to dry. The dried epithelial samples were then viewed without any further processing with a "SteReoLumar.V12" stereo microscope. The microscope slide surfaces were divided into grids and all single epithelial cells whose contours could be clearly distinguished were photographed. The maximum diameter for each photographed cell was digitally determined using the Axiovision software. In total, 995 vaginal epithelial cells, 211 penile epithelial cells, 329 male oral epithelial cells, and 525 female oral epithelial cells were measured. Menstrual cycle phase did not affect vaginal epithelial cell diameter. The mean vaginal epithelial cell diameter was 63.95 microm (min. = 28.08 microm, max. = 108.06 microm, s = 11.50 microm). The mean penile epithelial cell diameter was 39.24 microm (min. = 28.38 microm, max. = 51.02 microm, s = 4.84 microm). The diameter of oral epithelial cells hardly differed for both sexes, although the female cells were, on the whole, slightly larger. On the basis of these results, it is not possible to conclude that epithelial cells of less than a certain diameter found in the assessment of a vaginal swab must be of penile origin. It is also not possible to usefully distinguish vaginal epithelial cells from male or female oral epithelial cells on the basis of the diameter. However, finding epithelial cells with a diameter distinctly greater than 50 microm in a penile swab sample suggests the presence of vaginal or oral epithelial cells. Epithelial cells examined with the presented method can be used without restrictions for further examinations, such as single-cell DNA analysis after single-cell picking with the micromanipulator developed by Aura Optik (Jena).  相似文献   
207.
Simon H 《Newsweek》2007,149(3):62-63
  相似文献   
208.
Federal first responder funding is estimated to be $98 billion below the minimum required level over the 5 years ending in 2010. A significant portion of that shortfall can be covered by savings attained by eliminating non-public-good services, initiating public–private partnerships for meeting peak time demand in emergency situations, and contracting-out other public services. We concentrate on such savings in the context of response to false calls to police, fire, and ambulance services. Solving the false alarm problem for police, fire, and ambulance services and eliminating some non-public-good police services could release significant service-hours and 23.7–31.4% of the required additional Homeland Security (HLS) annual spending. Reducing false alarms means 88,000 police, fire, and ambulance first responders could be shifted to HLS activities.
Andrew J. BuckEmail:
  相似文献   
209.
The ability to estimate accurately from known parameters is a fundamental aspect of science and is evident as an emerging approach in the area of footprints and stature estimation within the field of forensic identification. There are numerous foot dimensions that have been measured in the literature to predict stature with varying degrees of confidence but few studies have tried to link the strength of estimation to anatomical landmarks. Such an approach is utilised in this study which estimates stature from the right footprints of sixty one adult male and female UK participants. Static and dynamic footprints were taken from each volunteer using the 'inkless paper system'. The prints were digitised and twelve length, width and angle measurements were chosen for the analysis. The highest correlations with stature were shown to be the heel to fourth toe print for the static group of footprints (r=0.786, p<0.01), and the heel to fifth toe print in the dynamic footprints (r=0.858, p<0.01). Collinearity statistics suggest the heel to fifth toe print length measurement is independent and not influenced by any other variables in the estimation of stature for the dynamic prints. Linear regression equations for this measurement presented the smallest standard error of estimate (SEE) and highest shared variance (R(2)) of all included variables (SEE 4.16, R(2) 0.74). Our study discusses a potential anatomical explanation as to why the lateral border of the foot and hence the impression it makes upon a hard surface, is a more stable indicator in the estimation of stature. The investigation recommends the use of Calc_A4 and Calc_A5 length measurements when estimating stature from footprint impressions.  相似文献   
210.
The paper investigates the factors influencing the 26 Swiss Cantons' government expenditures. While the question has been subject to various statistical analyses, the present study has an alternative focus by adopting a configurative perspective. We take the findings of the 2002‐study by Vatter and Freitag, as our point of departure and re‐analyse their significant variables with regard to their combined impact using updated data from 2000 to 2006 and employing Fuzzy Set QCA. The results underline the important effect of monetary transfers from the federation thus corroborating the Flypaper Effect thesis from Economic Theory.  相似文献   
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