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   458篇
  免费   23篇
各国政治   52篇
工人农民   41篇
世界政治   45篇
外交国际关系   22篇
法律   149篇
中国政治   4篇
政治理论   149篇
综合类   19篇
  2023年   2篇
  2022年   3篇
  2021年   4篇
  2020年   5篇
  2019年   10篇
  2018年   8篇
  2017年   10篇
  2016年   12篇
  2015年   14篇
  2014年   9篇
  2013年   95篇
  2012年   10篇
  2011年   11篇
  2010年   10篇
  2009年   13篇
  2008年   23篇
  2007年   11篇
  2006年   9篇
  2005年   12篇
  2004年   10篇
  2003年   15篇
  2002年   14篇
  2001年   13篇
  2000年   6篇
  1999年   12篇
  1998年   10篇
  1997年   10篇
  1996年   6篇
  1995年   6篇
  1994年   6篇
  1993年   4篇
  1992年   6篇
  1991年   7篇
  1990年   3篇
  1989年   12篇
  1988年   7篇
  1987年   5篇
  1986年   8篇
  1985年   3篇
  1984年   6篇
  1983年   4篇
  1982年   3篇
  1981年   4篇
  1980年   6篇
  1979年   4篇
  1977年   3篇
  1976年   4篇
  1974年   3篇
  1971年   2篇
  1970年   3篇
排序方式: 共有481条查询结果,搜索用时 15 毫秒
241.
The goal of this study was to evaluate the contribution of family characteristics (family conflict and cohesion) and abuse characteristics (age at which abuse occurred, abuse severity, and relationship to perpetrator) to resilience (self-acceptance, ability to engage in positive relationships with others, and environmental mastery) in a sample of one hundred and 77 university women who had experienced childhood sexual abuse (CSA). The respondents completed a questionnaire that focused on childhood experiences including family environment in childhood, characteristics of the abuse they had experienced in addition to degree of current resilience defined as their level of well-being (self-acceptance, ability to engage in positive relationships with others, and environmental mastery). The results indicated that family characteristics accounted for 13–22% of the variance in the well-being outcomes. In contrast, abuse characteristics accounted for 3% or less of the variance in the well-being outcomes. The clinical implications of these findings are discussed.  相似文献   
242.
Abstract: Since the 1980s, numerous studies in Canada have shown weaknesses in the level of involvement by firms in training and have thus raised the question of the role of public policy. In 1995, the Quebec government adopted a unique law in North America in this regard: An Act to Foster the Development of Manpower Training. The “1% Wage Bill Law” was intended to improve the qualifications, skills and performance of workers through training. This article investigates three impacts of this law: the level of investment by firms; the distributional aspect of the law in terms of its capacity to ensure a more equitable investment in training for the different categories of workers in firms; and, finally, the structural aspect in terms of establishing partnerships. From a theoretical perspective, the Quebec experience illustrates that, between the liberal approach and the institutionalist approach (market versus institutions), it is possible to observe a compromise being made by social actors with respect to the regulation process, which at the same time respects the decisional space of firms. Another observation relates to the complementary aspect of institutional forms in labour‐market regulation and to the fundamental role of unions in partnershipbuilding. Sommaire: Depuis les années 1980, de nombreuses etudes au Canada ont révélé un faible degré de participation des entreprises à la formation et ont ainsi soulevé la question du rôle de la politique gouvemementale. En 1995, le gouvemement du Québec a adoptéà cet égard une loi unique en son genre en Amérique du Nord: une Loi fauorisant le de'veloppement de la formation de la main‐d‘œuvre. La G loi du 1 % de la masse salariale “visait à améliorer les qualifications, les competences et la performance des travailleuses et travailleurs grâce 5 la formation. Le présent article examine trois impacts de cette loi: le niveau d'investissement des entreprises; l'aspect répartition de la loi en termes de sa capacitéà s' assurer que des investissements plus équitables soient consacrés à la formation pour différentes catégories de travailleuses et travailleurs dans les entreprises; et enfin, l'aspect structurel pour ce qui est de l’établissement de partenariats. D'un point de vue théorique, l'expérience du Québec illustre qu'entre l'approche libérale et l'approche institutionnelle (marché contre institutions), il est possible d'observer un compromis de la part des acteurs sociaux en ce qui concerne le processus de réglementation, qui respecte en même temps l'espace décisionnel des entreprises. Une autre observation porte sur l'aspect complémentaire des formes institutionnelles dans la réglementation du marché du travail et sur le rôle fondamental des syndicats dans l‘établissement de partenariats.  相似文献   
243.
The United States Food and Drug Administration (FDA), in collaboration with pharmaceutical manufacturers, have recently implemented a heavily revised risk-management program for patients on isotretinoin (Accutane), a drug with known and pronounced teratogenic effects. This revised risk management plan places significant burdens on both providers and patients in the hopes of achieving its goal of reducing fetal exposure to isotretinoin. The main focus of this paper is to discuss the burdens of various aspects of the program in relationship to potential corresponding benefits. In particular, we evaluate the pregnancy rates of women on isotretinoin therapy compared with that of the general population and the rate changes based on the risk management programs. Additionally, we investigate whether the benefits of the program for women have increased as the benefits have risen. We devote special attention to the ethical implications of the intent of the program and to an analysis of the ethical justification of the restrictions placed on women of childbearing potential (WCP) as it compares to the risk-benefit relationship of using isotretinoin.  相似文献   
244.
245.
To suggest that French legal sociology is a field in which a dominant theoretical tendency is identifiable is misleading; equally, attempts to provide insight into the work achieved in French socio-legal studies which presuppose that a complete inventory of the field must be undertaken are misguided. In this article, an exposition of French legal sociology is attempted using different means: following a brief history of the evolution of socio-legal studies in France, the authors suggest different paradigms around which French researchers appear to converge. Eight paradigms are identified, covering the majority of French sociologists and jurists. The article concludes with an analysis of some characteristics of socio-legal studies in general, within the framework of French intellectual and academic life.  相似文献   
246.
Jean McGarry 《耶鲁评论》2004,92(1):137-149
  相似文献   
247.
Lethal occurrence is exceptional after disopyramide or mianserin poisoning. A case of intentional lethal intoxication with these drugs was reported, as well as a review of the literature. Pre‐ and postmortem blood concentrations of disopyramide or mianserin were assessed in a woman who died from acute cardiac failure after ingestion. The premortem blood concentration of disopyramide alone was considered lethal, and a toxic premortem concentration of mianserin was observed that may have increased cardiovascular failure induced by disopyramide because the metabolism of both drugs is mediated via cytochrome P450. Moreover, it was shown that the postmortem redistribution of disopyramide was limited, as pre‐ and postmortem concentrations were 48 and 65 mg/L, respectively. As regards mianserin, redistribution was observed after death with pre‐ and portmortem concentrations at 0.23 and 0.79 mg/L, respectively. This case illustrates that if postmortem blood concentration of disopyramide is known, the premortem concentration can be deduced.  相似文献   
248.
About 120,000 reference samples are analyzed each year in the Forensic Laboratory of Lyon. A total of 1640 positive control experiments used to validate and optimize the analytical method in the routine process were submitted to a multivariate exploratory data analysis approach with the aim of better understanding the underlying sources of variability. The peak heights of the 16 genetic markers targeted by the AmpF?STR® Identifiler® STR kit were used as variables of interest. Six different 3130xl genetic analyzers located in the same controlled environment were involved. Two major sources of variability were found: (i) the DNA load of the sample modulates all peak heights in a similar way so that the 16 markers are highly correlated, (ii) the genetic analyzer used with a locus‐specific response for peak height and a better sensitivity for the most recently acquired. Three markers (FGA, D3S1358, and D13S317) were found to be of special interest to predict the success rate observed in the routine process.  相似文献   
249.
Abstract: Determining the number of contributors to a forensic DNA mixture using maximum allele count is a common practice in many forensic laboratories. In this paper, we compare this method to a maximum likelihood estimator, previously proposed by Egeland et al., that we extend to the cases of multiallelic loci and population subdivision. We compared both methods’ efficiency for identifying mixtures of two to five individuals in the case of uncertainty about the population allele frequencies and partial profiles. The proportion of correctly resolved mixtures was >90% for both estimators for two‐ and three‐person mixtures, while likelihood maximization yielded success rates 2‐ to 15‐fold higher for four‐ and five‐person mixtures. Comparable results were obtained in the cases of uncertain allele frequencies and partial profiles. Our results support the use of the maximum likelihood estimator to report the number of contributors when dealing with complex DNA mixtures.  相似文献   
250.
Research on increased medical care costs associated with posttraumatic sequelae has focused on posttraumatic stress disorder (PTSD). However, the provisional diagnosis of Disorders of Extreme Stress Not Otherwise Specified (DESNOS) encompasses broader trauma-related difficulties and may be uniquely related to medical costs. We investigated whether DESNOS severity was associated with greater nonmental health medical care costs in veterans receiving mental health care. Participants were 106 men and 105 women receiving VA outpatient mental health treatment. A standardized interview assessed DESNOS severity. The dependent variables consisted of primary and specialty medical treatment costs. Sequential zero-inflated negative binomial regression was used to evaluate the variance in medical costs accounted for by DESNOS severity, controlling for PTSD severity and established predisposing, enabling, and need-based health care factors. Contrary to our hypothesis, in fully adjusted models, DESNOS severity independently added a significant amount of variance to lower specialty medical care costs, whereas PTSD did not consistently account for significant variance in medical care costs. Greater DESNOS severity appears to be associated with lower specialty medical care costs but not primary care costs. These findings may indicate that patients with DESNOS symptoms are at risk for being underreferred for specialty care.  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