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   209篇
  免费   7篇
各国政治   24篇
工人农民   18篇
世界政治   10篇
外交国际关系   9篇
法律   115篇
政治理论   40篇
  2020年   3篇
  2019年   8篇
  2018年   7篇
  2017年   9篇
  2016年   3篇
  2015年   6篇
  2014年   3篇
  2013年   22篇
  2012年   4篇
  2011年   5篇
  2010年   2篇
  2009年   5篇
  2008年   17篇
  2007年   11篇
  2006年   10篇
  2005年   7篇
  2004年   8篇
  2003年   6篇
  2002年   6篇
  2001年   10篇
  2000年   3篇
  1999年   2篇
  1998年   2篇
  1997年   3篇
  1996年   3篇
  1995年   4篇
  1994年   1篇
  1993年   3篇
  1992年   2篇
  1991年   1篇
  1990年   2篇
  1989年   4篇
  1988年   1篇
  1987年   2篇
  1986年   2篇
  1985年   1篇
  1984年   3篇
  1983年   2篇
  1982年   2篇
  1981年   2篇
  1980年   4篇
  1979年   2篇
  1978年   3篇
  1977年   2篇
  1976年   3篇
  1972年   2篇
  1969年   1篇
  1968年   1篇
  1967年   1篇
排序方式: 共有216条查询结果,搜索用时 15 毫秒
131.
Public Choice - In almost all democratic national elections an individual vote cannot change the election outcome. The fact that many individuals nevertheless participate voluntarily in such...  相似文献   
132.
This article, the first part of a larger study devoted to the compensation of damages caused by pollution, reviews the existing sources of compensation in the United States: the common law of torts, federal and state statutes, and various forms of commercial insurance coverages. It shows how the rules of nuisance law have remained flexible in response to changing customs and public policies, how for a long time prevailing attitudes favored industrial development and economic growth over physical comfort, and how increasing concerns about the long-term health effects of environmental pollution have created a trend in the opposite direction. The author also points out that the existing system of liability and compensation, which relies on individual actions and case-by-case adjudication, is not ideally suited for dealing with the effects of large-scale pollution or for the —primarily political—task of evaluating and balancing all of the interests and values, present and future, economic and noneconomic, that need to be considered before decisions can be made that are bound to affect the health and economic well-being of a large part of the population beyond the immediate parties to a lawsuit. This indicates a need for a comprehensive approach that would not only coordinate the rules concerning liability and those concerning insurance and other sources of compensation but would also make the compensation of pollution damages an integral part of a thoroughly rational and consistent environmental policy. The various possibilities of constructing such a comprehensive compensation system will be discussed in the second part of the study, to be published in a forth-coming issue of the American Bar Foundation Research Journal.  相似文献   
133.
As fatal trauma to the neck is often associated with short survival times, proof of vitality may often be difficult using standard histochemical techniques. Soft tissue neck injuries resulting from strangulation by ligature or manual strangulation were examined immunohistochemically using antibodies to myoglobin, fibronectin, C5b-9 and MRP14, and compared to controls consisting of accidental soft tissue neck injuries as well as undamaged neck soft tissue. Although survival times in the study and control groups were unknown and certainly some individual variation may be expected in the time course of normal wound development, both the study and control groups demonstrated similar time courses in the immunohistochemical detection of antigen. Myoglobin was always found in those samples in which only one antigen was shown to be involved in an injury-specific pattern; myoglobin and fibronectin were found in samples with dual antigen involvement. Samples involving three antigens always included C5b-9 in addition to myoglobin and fibronectin. The single positive MRP14 sample in the study and control groups was simultaneously positive for the other markers used. Myoglobin, fibronectin, C5b-9 and MRP14 are therefore suitable for immunohistochemical detection of vital reactions and estimation of temporal relationships in the early posttraumatic period after neck trauma.  相似文献   
134.
We consider an economy composed of two regions. Each of them provides a public good whose benefits reach beyond local boundaries. In case of decentralization, taxes collected by members of a region are spent only on that region's public good. In case of centralization, tax receipts from the two regions are pooled and used to finance both public goods according to the population size of each region. The experiment shows that centralization induces lower tax morale and less efficient outcomes. The reasons are that centralization gives rise to an interregional incentive problem and creates inequalities in income between regions.  相似文献   
135.
136.
Travel-related poisoning is an emerging social and public health emergency in Bangladesh but its cause and significance have not been determined. To investigate this syndrome we performed a prospective clinical study and retrospective analysis of hospital records in a general medicine unit of a public tertiary care teaching hospital in Dhaka, Bangladesh, using toxicological analysis by fluorescence polarization immunoassay (FPIA) and liquid chromatography coupled to time-of-flight mass spectrometry (LC-TOF MS). The participants of the prospective study were 130 consecutive patients aged 16-80 years who were admitted with central nervous system depression (Glasgow Coma Score 3-14) after using public transportation, in the absence of other abnormalities, from January through June 2004, and a convenience sample of 15 such patients admitted during 3 days in May 2006. In 2004-2006, travel-related poisoning increased from 6.1 to 9.5% of all admissions (210-309 of 3266-3843 per year), representing 46.6-55.7% of all admitted poisoning cases. Incidents were associated with bus (76%), taxi, train, and air travel, or local markets; 98% of patients remembered buying or accepting food or drinks before losing consciousness. Direct financial damage (missing property) was diverse and frequently existential. Among 94 urine samples analyzed by FPIA, 74% tested positive for benzodiazepines. Among 15 urine samples analyzed by LC-TOF MS, lorazepam was detected in all; five also contained diazepam or metabolites; nitrazepam was present in three. FPIA results obtained for these 15 samples were below the recommended cut-off in eight (53%; lorazepam only). Our findings show that the massive medicosocial emergency of travel-related poisoning in Bangladesh is the result of drug-facilitated organized crime and that benzodiazepine drugs are used to commit these crimes, suggesting modifications to the local emergency management of the victims of this type of poisoning. They also highlight the need for more research in the neglected field of acute poisoning in Bangladesh, and for criminal investigations of the use of benzodiazepine drugs in this country.  相似文献   
137.
Forensic pathologists are regularly confronted with emergency and invasive medical procedures performed on critically ill or traumatized patients. Basic knowledge of such procedures and their possible complications is therefore mandatory in medico-legal practice. In this article, we describe a very unusual complication of pulmonary artery catheterization: through-and-through perforation of the carotid artery, initially without hemodynamic consequence. Death resulted from an aggravation of the preexisting cerebral edema (secondary to a craniocerebral trauma). The misplacement of the pulmonary artery catheter was clinically missed because the guidewire was initially deflected on the cervical spine towards the subclavian vein where the catheter--by chance--entered the circulatory system and followed its normal route further. The forensic importance of leaving all invasive medical devices in situ on a deceased person when a medico-legal autopsy is to be expected and the mutual interaction between emergency and forensic medicine (forensic emergency medicine) are discussed.  相似文献   
138.
Staging third molar development is commonly used for age estimation in subadults. Automated developmental stage allocation to the mandibular left third molar in panoramic radiographs has been examined in a pilot study. This method used an AlexNet Deep Convolutional Neural Network (CNN) approach to stage lower left third molars, which had been selected by manually drawn bounding boxes around them. This method (bounding box AlexNet = BA) still contained parts of surrounding structures which may have affected the automated stage allocation performance. We hypothesize that segmenting only the third molar could further improve the automated stage allocation performance. Therefore, the current study aimed to determine and validate the effect of lower third molar segmentations on automated tooth development staging. Retrospectively, 400 panoramic radiographs were collected, processed and segmented in three ways: bounding box (BB), rough (RS), and full (FS) tooth segmentation. A DenseNet201 CNN was used for automated stage allocation. Automated staging results were compared with reference stages – allocated by human observers – overall and per stage. FS rendered the best results with a stage allocation accuracy of 0.61, a mean absolute difference of 0.53 stages and a Cohen's linear κ of 0.84. Misallocated stages were mostly neighboring stages, and DenseNet201 rendered better results than AlexNet by increasing the percentage of correctly allocated stages by 3% (BA compared to BB). FS increased the percentage of correctly allocated stages by 7% compared to BB. In conclusion, full tooth segmentation and a DenseNet CNN optimize automated dental stage allocation for age estimation.  相似文献   
139.
Post-war constitution-making touches the future identity of the concerned society. In externally led democratization, it can turn into a challenging negotiation process between international and so-called local actors. But who can claim the authority to define and interpret identity and fundamental norms of society, and on what grounds? Based on an analysis of the “Joint Working Group on the Constitutional Framework” held in spring 2001 in Kosovo, the article argues that external actors have a structural disadvantage in the authoritative communication with local actors, even if equipped with a strong international mandate. While external actors can set the opportunity structures to negotiate constitutional politics, local actors will use every chance to publically claim authority on their behalf in the process. Guided by the theoretical framework of interpretative authority (Deutungsmacht), the article concludes that we have to understand authority in statebuilding primarily, not as an attribute of actors, but as an outcome of communicative practices.  相似文献   
140.
There is an emerging consensus that women’s participation in peace negotiations contributes to the quality and durability of peace after civil war. However, to date, this proposition has remained empirically untested. Moreover, how women’s participation may contribute to durable peace has not been systematically explored. This article uses a mixed method design to examine this proposition. Our statistical analysis demonstrates a robust correlation between peace agreements signed by female delegates and durable peace. We further find that agreements signed by women show a significantly higher number of peace agreement provisions aimed at political reform, and higher implementation rates for provisions. We argue that linkages between women signatories and women civil society groups explain the observed positive impact of women’s direct participation in peace negotiations. Collaboration and knowledge building among diverse women groups contributes to better content of peace agreements and higher implementation rates of agreement provisions. We substantiate this argument with qualitative case study evidence and demonstrate how collaboration between female delegates and women civil society groups positively impacts peace processes. Our findings support the assumption that women’s participation in peace negotiations increases the durability and the quality of peace.  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