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   367篇
  免费   21篇
各国政治   21篇
工人农民   47篇
世界政治   29篇
外交国际关系   12篇
法律   195篇
中国政治   12篇
政治理论   69篇
综合类   3篇
  2023年   5篇
  2022年   8篇
  2021年   3篇
  2020年   12篇
  2019年   12篇
  2018年   22篇
  2017年   19篇
  2016年   18篇
  2015年   18篇
  2014年   20篇
  2013年   56篇
  2012年   21篇
  2011年   18篇
  2010年   20篇
  2009年   8篇
  2008年   23篇
  2007年   23篇
  2006年   17篇
  2005年   12篇
  2004年   6篇
  2003年   8篇
  2002年   4篇
  2001年   2篇
  2000年   4篇
  1999年   3篇
  1998年   1篇
  1997年   3篇
  1996年   1篇
  1995年   2篇
  1994年   1篇
  1993年   1篇
  1992年   1篇
  1991年   2篇
  1990年   2篇
  1989年   3篇
  1988年   2篇
  1987年   1篇
  1986年   1篇
  1980年   1篇
  1979年   1篇
  1977年   2篇
  1967年   1篇
排序方式: 共有388条查询结果,搜索用时 77 毫秒
231.
232.
The criteria that researchers use to classify aggressive behaviour as bullying are 'repetition', 'power imbalance', and 'intent to hurt'. However, studies that have analyzed adolescents' perceptions of bullying find that most adolescents do not simultaneously consider these three criteria. This paper examines adolescents' perceptions of bullying and of the different forms it takes, and whether these perceptions vary according to the teen's role of victim, aggressor, or witness in a bullying situation. The data acquisition instrument was a questionnaire applied to a sample of 2295 teenagers. The results show that none of these three groups considered the criterion of repetition to be important to define bullying. A further conclusion was that both aggressors and witnesses used the criteria of 'power imbalance' and 'intent to hurt' to identify a situation of bullying, although the aggressors placed especial emphasis on the superiority of power over the victim, while the witnesses emphasized the intent to hurt the victim. One noteworthy finding was that victims do not consider the factor 'power imbalance'. The factor that determined their perceptions was the 'intent to hurt'. Finally, some modes of bullying were seen as forms of typical teen social interactions, and the perception depended significantly on the adolescent's role as aggressor, victim, or witness.  相似文献   
233.
This article investigates the factors that determine the configuration of budget stabilization funds, also known as rainy day funds, along their two most important dimensions: deposit and withdrawal requirements. These funds are created to accumulate savings in order to reduce the impact of adverse fiscal conditions during downturns. The effectiveness of such funds depends greatly on their institutional structure, and yet most states choose configurations that compromise their efficacy. Using multinomial discrete techniques, and introducing the ordered nature of the requirements in the analysis, the results of this study indicate that political and institutional factors such as the size of the house of the legislature and some strict institutions are associated with weak budget stabilization funds, while economic factors such as the volatility of state tax revenues are associated with stricter funds.  相似文献   
234.
Neuropsychological consequences in female survivors of intimate partner violence are being used in courts as evidence of acquired injury and for criminal exculpation. To support the validity of neuropsychological test performance and the veracity of victim testimony, effort tests can be used by expert witnesses. Nevertheless, no study has evaluated whether the two principle types of effort tests, Symptom validity tests or Performance validity tests, are most adequate for this population. The study’s objective was to compare the false positive rates of a Performance validity test (Test of Memory Malingering: TOMM) and a Symptom validity test (Structured Inventory of Malingered Symptomatology: SIMS). The sample included 68 female intimate partner violence victims and 40 control females. SIMS showed a significantly higher rate of false positives in victims on four of five subtests, reaching a 59.3% in the total score. There were 0% false positives in both groups on the TOMM. Findings indicate that the SIMS may incorrectly score female IPV victims, undermining the victim’s testimony in judicial cases.  相似文献   
235.
Sommaire: En visant le développement régional, l'État québécois est passé dune phase d'aménagement du territoire à une phase de management régional de programmes nationaux ainsi que de biens et de services collectifs. L'émergence ou la localisation d'organisations publiques, parapubliques et collectives entre l'État et les municipalités traditionnelles ont occasionné, en fait, la construction institutionnelle des régions. Douze composantes caractérisent cette construction et offrent des criteres de différenciation entre les deux écheions que sont les régions administratives et les régions mrc. Grke à la mesure de l'occupation institutionnelle de ces deux niveaux régionauu, l'article illustre plusieurs phénomènes, dont le degré de construction de cliaque région du Québec. Les auteurs exposent les causes des inégalités ainsi que les tendances actuelles. Abstract: In its efforts towards regional development, Quebec has gone from a phase of physical planning to a phase of regional management of national programs as well as collective goods and services. The emergence or the placing of public organizations at the levels between local municipalities and the state has in fact given rise to the institutional organization of regions. This concept is characterized by twelve components which differentiate between the tier of administrative regions and the tier of the mrc regions. With the degree of the institutional occupation of these two regional levels, this ptper illustrates several phenomena, in particular the degree of achievement in the organization of Quebec regions. The authors expose some causes of inequalities in the achievement of organizations in these regions and the actual tendencies.  相似文献   
236.
237.
238.
The present research examined factors that could be used to improve campaigns geared toward having adolescents prevent their friends from driving while intoxicated. Three areas were examined: (1) adolescents' ability to make accurate judgments of their friends' drunkenness using information about the number of drinks consumed and the time to consume, (2) their perceptions of the consequences that could ensue if they were to attempt to prevent their friends from driving while intoxicated, and (3) their knowledge of viable strategies if they were to attempt such interventions with their friends. The results show that adolescents have perceptual biases when using information about number of drinks and time to consume when making judgments of drunkenness, and that intervention attempts with friends are likely to result in confrontations. The implications of these findings for the timing and content of educational efforts is discussed.This research was supported in part by Grant AA0687502 from the National Institute of Alcohol Abuse and Alcoholism, and by the Center for Applied Research at the State University of New York at Albany.Received Ph.D. from University at Albany. Research interest is in social and cognitive psychology.Received Ph.D. from University of Illinois. Research interest is in social and cognitive psychology.Research interest in developmental psychology.Received B.S. from Siena College. Research interest is in social and cognitive psychology.  相似文献   
239.
240.
We report the results of Spanish and Portuguese working group (GEP) of International Society of Forensic Genetics (ISFG) Collaborative Exercise 2001-2002 on mitochondrial DNA (mtDNA) analysis. 64 laboratories from Spain, Portugal and several Latin-American countries participated in this quality control exercise. Five samples were sent to the participating laboratories, four blood stains (M1-M4) and a sample (M5) consisting of two hair shaft fragments. M4 was non-human (Felis catus) in origin; therefore, the capacity of the labs to identify the biological source of this sample was an integral part of the exercise. Some labs detected the non-human origin of M4 by carrying out immuno-diffussion techniques using antihuman serum, whereas others identified the specific animal origin by testing the sample against a set of animal antibodies or by means of the analysis of mtDNA regions (Cyt-b, 12S, and 16S genes). The results of the other three human blood stains (M1-M3) improved in relation to the last Collaborative Exercises but those related to hairs yielded a low rate of success which clearly contrasts with previous results. As a consequence of this, some labs performed additional analysis showing that the origin of this low efficiency was not the presence of inhibitors, but the low quantity of DNA present in these specific hair samples and the degradation.As a general conclusion the results emphasize the need of external proficiency testing as part of the accreditation procedure for the labs performing mtDNA analysis in forensic casework.  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