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   387篇
  免费   21篇
各国政治   46篇
工人农民   14篇
世界政治   125篇
外交国际关系   29篇
法律   115篇
中国政治   2篇
政治理论   76篇
综合类   1篇
  2023年   2篇
  2022年   3篇
  2021年   2篇
  2020年   16篇
  2019年   20篇
  2018年   22篇
  2017年   31篇
  2016年   28篇
  2015年   11篇
  2014年   18篇
  2013年   60篇
  2012年   13篇
  2011年   19篇
  2010年   8篇
  2009年   5篇
  2008年   7篇
  2007年   14篇
  2006年   7篇
  2005年   10篇
  2004年   11篇
  2003年   7篇
  2002年   4篇
  2001年   5篇
  2000年   6篇
  1999年   3篇
  1998年   1篇
  1997年   5篇
  1996年   5篇
  1995年   6篇
  1994年   7篇
  1993年   6篇
  1992年   3篇
  1991年   6篇
  1990年   4篇
  1989年   4篇
  1988年   12篇
  1987年   2篇
  1986年   2篇
  1985年   1篇
  1984年   1篇
  1983年   1篇
  1982年   1篇
  1979年   2篇
  1977年   1篇
  1976年   3篇
  1974年   1篇
  1973年   1篇
  1967年   1篇
排序方式: 共有408条查询结果,搜索用时 15 毫秒
201.
Hair of young subjects (N = 36) suspected for drug abuse was analysed for morphine, codeine, heroin, 6-acetylmorphine, cocaine, methadone, amphetamine, methamphetamine, 3,4-methylenedioxyamphetamine (MDA), 3,4-methylenedioxymethamphetamine (MDMA), and 3,4-methylenedioxyethylamphetamine (MDEA). The analysis of morphine, codeine, heroin, 6-acetylmorphine, cocaine, and methadone in hair included incubation in methanol, solid-phase extraction, derivatisation by the mixture of propionic acid anhydride and pyridine, and gas chromatography/mass spectrometry (GC/MS). For amphetamine, methamphetamine, MDA, MDMA, and MDEA analysis, hair samples were incubated in 1M sodium hydroxide, extracted with ethyl acetate, derivatised with heptafluorobutyric acid anhydride (HFBA), and assayed by GC/MS. The methods were reproducible (R.S.D. = 5.0-16.1%), accurate (85.1-100.6%), and sensitive (LoD = 0.05-0.30ng/mg). The applied methods confirmed consumption of heroin in 18 subjects based on positive 6-acetylmorphine. Among these 18 heroin consumers, methadone was found in four, MDMA in two, and cocaine in two subjects. Cocaine only was present in two, methadone only in two, methamphetamine only in two, and MDMA only in seven of the 36 subjects. In two out of nine coloured and bleached hair samples, no drug was found. Despite the small number of subjects, this study has been able to indicate the trend in drug abuse among young people in Croatia.  相似文献   
202.
For decades, racial profiling has been subject of intense debate in US jurisdiction. Recently, outcome tests based on economic models have contributed to the legal discourse. However, it is not readily obvious if and to what extent they also pertain to European jurisdiction, where racial profiling has only as of late stirred up controversy. In a comprehensive examination of their basic building blocks, this paper illustrates why the these tests are not particularly suited for the European case. The models are tailored to identify racial prejudice but are unfit to provide evidence of statistical discrimination, reflecting their adaption to the current US legal approach. A simple alternative test remedies this shortcoming and manages to inform the European jurisdiction.  相似文献   
203.
204.
Sexual minorities are the most vulnerable minorities on the planet. Their existence challenges cultural norms, traditions, and power structures. They have been treated as social pariahs and scapegoats for the economic, political, or social ills in their countries. However, countries vary widely in the extent to which they are protective or repressive toward lesbian, gay, bisexual, and transgender individuals. This article systematically analyzes the global persecution and protection of sexual minorities through the application of the F&M Global Barometer of Gay RightsTM (GBGR). Using GBGR world data from 2011 to 2014, we document the variance in levels of state and societal persecution and protection of sexual minorities in 188 countries. Our findings suggest that having a higher life expectancy, a democratic system, a lower percentage of rural population, and lower religiosity are significant predictors of whether a country will be more rights-protective toward its sexual minorities.  相似文献   
205.
Abstract

This article discusses the evolution of government-nonprofit relations at the regional level in Russia against the background of national-level restrictions on NGOs. Russia recently also introduced supportive policies and the article aims to trace the regional administrations’ reactions to the dual realities of the federal government’s posture towards nonprofits. Considerable variation was found in regional government-nonprofit relationships as well as deviation from national policy stances. Using a subnational comparative framework, this article addresses a gap in the literature and lays the groundwork for future cross-national comparisons of subnational variations of government-nonprofit relations in other authoritarian and hybrid political regimes.  相似文献   
206.
It is not uncommon in forensic psychiatry that the duty to care for the patient conflicts with the responsibility to the court, or the duty to protect the public from harm from the potentially dangerous patient-offender. This paper exemplifies the scenario of what happens when the line between forensic and clinical psychiatry is crossed and whether crossing that boundary can be justified. Ethical discussion also embodies and clarifies the issues of unjustified violation of the patients’ autonomy and an undue infringement on their right to liberty on the arbitrary basis of existing or perceived mental illness. The paper provides an in-depth analysis of the issues of physicians’ conflicting duties, vulnerability of patient-offenders, and their human rights in the light of court orders and involuntary hospitalizations.

I argue that in order to promote ethical decision-making we must establish clear rules and guidelines for psychiatric practice, separate conflicting roles, and provide sufficient training of health-care professionals regarding topics of human rights and legislation governing clinical and forensic psychiatric practice. Empowering patients and enhancing their rights to autonomy and liberty can also be potent tools of promotion and protection of their human rights and prevention of ethical breaches in practice.  相似文献   

207.
Testicular displacement is a rare clinical presentation of blunt scrotal injury that may take place in road traffic accidents involving motorcycle occupants. We are presenting two cases of motorcycle occupant fatalities, 21 and 24 years of age, where testicular displacement and other signs of groin trauma have been determined. In both cases, discrete external signs of scrotal trauma were noted on examination, while unilateral and bilateral traumatic testicular displacement, respectively, have been documented at autopsy. For motorcycle occupants involved in collision, it is necessary to perform a thorough analysis of injuries, in particular to look for specific trauma arising from fuel-tank impact to genitalia and/or groin. These injuries are of great medico-legal importance both at postmortem and in clinical cases involving motorcycle occupants involved in collision.  相似文献   
208.
Wormian bones are small ossicles appearing within the cranial sutures in more than 40% of skulls, most commonly at the lambdoid suture and pterion. During the skeletal analysis of an unidentified male war victim, we observed multiple wormian bones and a patent metopic suture. Additionally, the right elbow was deformed, probably as a consequence of an old trauma. The skull was analyzed by cranial measurements and computerized tomography, revealing the presence of cranial deformities including hyperbrachicrania, localized reduction in hemispheral widths, increased cranial capacity, and sclerosis of the viscerocranium. Besides unique anatomical features and their anthropological value, such skeletal abnormalities also have a forensic value as the evidence to support the final identification of the victim.  相似文献   
209.
This study examined which dynamic risk factors for recidivism play an important role during adolescence. The sample consisted of 13,613 American juveniles who had committed a criminal offense. The results showed that the importance of almost all dynamic risk factors, both in the social environment domain (school, family, relationships) and in the individual domain (attitude, skills, aggressiveness), decreased as juveniles grew older. Therefore, the potential effect of an intervention aimed at these factors will also decrease as juveniles grow older. The relative importance of the risk factors also changed: In early adolescence, risk factors in the family domain showed the strongest association with recidivism, whereas in late adolescence risk factors in the attitude, relationships, and school domain were more strongly related to recidivism. These results suggest that the focus of an intervention needs to be attuned to the age of the juvenile to achieve the maximum potential effect on recidivism.  相似文献   
210.
The use of alcohol increases the risk of dying from unnatural or violent causes. The presented study explored the distribution of age, gender, cause, and circumstances of death in persons who died in an unnatural and violent manner, with a blood alcohol concentration (BAC) higher than 0.3 g/dL, and where the cause of death was not alcohol intoxication. We defined the control (0 < BAC < 0.3 g/dL) and study (BAC ≥ 0.3 g/dL) groups, as in subjects with these concentrations, there is a significant risk of gross intoxication, stupor, and death. The subjects from the study group were older, with no difference in gender distribution. Traffic accidents were the most common fatal event in both groups, followed by suicides. Other accidents (choking on food and exposure to fire) were more frequent in the study group. Compared to the control group, subjects from the study group were older persons whose deaths were mainly accidental.  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