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   278篇
  免费   5篇
各国政治   24篇
工人农民   2篇
世界政治   12篇
外交国际关系   15篇
法律   157篇
政治理论   73篇
  2024年   1篇
  2022年   2篇
  2021年   1篇
  2020年   4篇
  2019年   4篇
  2018年   5篇
  2017年   6篇
  2016年   6篇
  2015年   8篇
  2014年   9篇
  2013年   20篇
  2012年   11篇
  2011年   14篇
  2010年   11篇
  2009年   21篇
  2008年   19篇
  2007年   13篇
  2006年   15篇
  2005年   9篇
  2004年   3篇
  2003年   10篇
  2002年   23篇
  2001年   9篇
  2000年   10篇
  1999年   2篇
  1998年   2篇
  1997年   5篇
  1996年   3篇
  1995年   3篇
  1994年   2篇
  1993年   2篇
  1992年   2篇
  1990年   1篇
  1989年   1篇
  1988年   2篇
  1987年   2篇
  1986年   2篇
  1985年   1篇
  1983年   1篇
  1982年   2篇
  1981年   6篇
  1979年   1篇
  1978年   5篇
  1977年   2篇
  1976年   1篇
  1966年   1篇
排序方式: 共有283条查询结果,搜索用时 15 毫秒
11.
Consistent with an emphasis on positive psychology, and on ability rather than deficit, this study of adolescents in 4 communities sought to examine how young people cope with their concerns. Samples of Australian, Colombian, German, and Palestinian students completed the general form of the Adolescent Coping Scale, an 80-item instrument used to measure coping. A comparison of young people's usage of 3 coping styles and 18 coping strategies within these communities indicated that Palestinian youth report greater usage of all but three strategies (namely, physical recreation, relaxation, and tension reduction), and German youth report the least usage of 2/3 of the strategies assessed. Both Palestinian and Colombian youth were noted to utilize more seek to belong, focus on the positive, social action, solving the problem, seeking spiritual support, and worry than were German or Australian adolescents. When the relative usage of coping strategies within national settings was considered, some noticeable differences were apparent. For example it was found that regardless of the national setting young people reported most frequent use of working hard and use of problem solving strategies. When it comes to more culturally determined activities such as physical recreation, the Australian and German students ranked this strategy more highly in their coping repertoires than do the Colombians, and more noticeably, the Palestinian students. For example, although physical recreation is ranked as the second most commonly used strategy for the German sample, it is ranked 16th by the Palestinians. The study demonstrates the importance of identifying coping strategies that are reflective of each community under investigation. Similarity in coping cannot be assumed across different student populations. Consequently caution needs to be exercised when importing coping programs from one community to another.  相似文献   
12.
13.
14.
15.
16.
Editorial     
Ohne Zusammenfassung
Editorial
  相似文献   
17.
18.
We present a case of an accidental autoerotic death involving the inhalation of a propane-butane gas mixture, also known as LPG (liquefied petroleum gas). A 19-year-old male was found dead in supine position in his bed in a residential accommodation one day after he was last seen alive. On a personal computer at the end of the bed, a pornographic movie was still running. On his left shoulder, an empty rubber balloon and on the bedside 2 empty "Kisag-Gas" cartridges were found. Toxicologic investigations revealed an intoxication with propane and butane, together with a recent consumption of cannabis. This case report compares the toxicologic findings with other recently published cases, and the theories of the toxic effects are discussed.  相似文献   
19.
Degradation of human DNA extracted from forensic stains is, in most cases, the result of a natural process due to the exposure of the stain samples to the environment. Experiences with degraded DNA from casework samples show that every sample may exhibit different properties in this respect, and that it is difficult to systematically assess the performance of routinely used typing systems for the analysis of degraded DNA samples. Using a batch of artificially degraded DNA with an average fragment size of approx. 200 bp a collaborative exercise was carried out among 38 forensic laboratories from 17 European countries. The results were assessed according to correct allele detection, peak height and balance as well as the occurrence of artefacts. A number of common problems were identified based on these results such as strong peak imbalance in heterozygous genotypes for the larger short tandem repeat (STR) fragments after increased PCR cycle numbers, artefact signals and allelic drop-out. Based on the observations, strategies are discussed to overcome these problems. The strategies include careful balancing of the amount of template DNA and the PCR cycle numbers, the reaction volume and the amount of Taq polymerase. Furthermore, a careful evaluation of the results of the fragment analysis and of automated allele calling is necessary to identify the correct alleles and avoid artefacts.  相似文献   
20.
This article gives an overview of current pharmacological treatment of paraphilias and sex offenders focusing on the situation in Germany. Information about selective serotonin reuptake inhibitors (SSRI) is followed by data about established antihormonal substances (cyproterone acetate/CPA, and medroxyprogesterone acetate/MPA), as well as a more detailed account on luteinizing hormone-releasing hormone agonists (LHRH agonists). The results of open, uncontrolled clinical studies with SSRIs (n = 16) and LHRH agonists (n = 11) in paraphilic outpatients confirm the positive effects of these substances. A survey about the use of CPA and LHRH agonists in forensic hospitals in Germany shows that half of the patients treated with any kind of (anti-) hormonal agents received an LHRH agonist. The authors present a protocol on side effects, contraindications, and monitoring of CPA and LHRH agonists and develop an algorithm for differential pharmacotherapy of paraphilias.  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