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   201篇
  免费   7篇
各国政治   17篇
工人农民   1篇
世界政治   8篇
外交国际关系   9篇
法律   102篇
政治理论   71篇
  2023年   2篇
  2022年   2篇
  2021年   2篇
  2020年   1篇
  2019年   3篇
  2018年   6篇
  2017年   9篇
  2016年   8篇
  2015年   8篇
  2014年   4篇
  2013年   26篇
  2012年   14篇
  2011年   12篇
  2010年   11篇
  2009年   6篇
  2008年   15篇
  2007年   10篇
  2006年   9篇
  2005年   14篇
  2004年   4篇
  2003年   11篇
  2002年   6篇
  2001年   3篇
  2000年   6篇
  1999年   2篇
  1998年   2篇
  1996年   1篇
  1994年   1篇
  1990年   2篇
  1989年   2篇
  1986年   1篇
  1982年   1篇
  1980年   1篇
  1963年   2篇
  1961年   1篇
排序方式: 共有208条查询结果,搜索用时 10 毫秒
191.
192.
Three recently described Y-chromosome single nucleotide polymorphisms (Y-SNPs) were typed in a sample of 135 men from Tyrol (Austria). These SNPs define sub-clades of haplogroup (hg) R1b. The derived states of U152 (hg R1b3h) U106 (R1b3i) and U198 (R1b3i1) were found within the Austrian R1b population sub-sample (N = 42) in 9 (21.4%), 25 (59.5%), and 1 (2.4%) individuals, respectively. Only 8 (19.0%) of the hg R1b Y-chromosomes remained unresolved. These novel SNPs proved to be promising tools for distinguishing R1b lineages in the evolutionary as well as in the forensic context.  相似文献   
193.
194.
Is presenting patients with moral reminders prior to psychological testing a fruitful deterrence strategy for symptom over-reporting? We addressed this question in three ways. In study 1, we presented individuals seeking treatment for ADHD complaints (n = 24) with moral primes using the Mother Teresa Questionnaire and compared their scores on an index of symptom over-reporting (i.e., the Structured Inventory of Malingered Symptomatology, SIMS) with those of unprimed patient controls (n = 27). Moral primes slightly decreased SIMS scores, but the effect was not significant. In study 2, we took a different approach to activate moral categories: we recruited individuals seeking treatment for ADHD complaints and asked some of them to sign a moral contract (i.e., prime; n = 19) declaring that they would complete the tests in an honest way and compared their scores on the SIMS and standard clinical scales measuring self-reported psychopathology with those of unprimed patient controls (n = 17). Again, we found no convincing evidence that moral cues suppress symptom over-reporting. In study 3, we gave individuals from the general population (N = 132) positive, negative, or neutral moral primes and implicitly induced them to feign symptoms, after which they completed a brief validated version of the SIMS and an adapted version of the b Test (i.e., an underperformance measure). Again, primes did not affect over-reporting tendencies. Taken together, our findings illustrate that moral reminders are not going to be useful in clinical practice. Rather, they point towards the importance of studying contextual and individual difference factors that guide moral decision-making in patients and may be modified to discourage symptom over-reporting.  相似文献   
195.
In the present study, we demonstrate that two commonly used Y-chromosome single nucleotide polymorphisms (SNPs), P25 and 92R7, are paralogous sequence variants (PSVs) originating from segmental duplications and that at least one of the sequence variants in each group of loci is polymorphic. Several methodologies were used in order to detect the SNP alleles and the PSVs of the loci. All results obtained with the various typing techniques supported the conclusion. The allele distributions of the binary markers were analysed in more than 600 males with seven different haplogroups. For P25, the ancestral allele C was found in several samples from different haplogroups. The derived allele A was always present with an additional C variant. Haplogroup P was defined by the derived allele A at the 92R7 locus. However, the ancestral allele G was always associated with an A variant due to the duplication.  相似文献   
196.
The article describes critical investigations concerning the threshold value between endogenous and exogenous concentrations of gamma-hydroxybutyric acid (GHB/"liquid ecstasy") in human blood. The values of GHB in the blood samples of 50 blood donors and 50 postmortem cases were measured with a validated gas-chromatographic/mass-spectrometric procedure according to the guidelines of the GTFCh (Society of Toxicological and Forensic Chemistry). GHB-concentrations were found to range between 0.11 and 1.56 mg/L (mean value 0.54 mg/L/standard deviation 0.37 mg/L/coefficient of variation 68.4 %) in the donors' blood, and between 2.2 and 116 mg/L (mean value 32.4 mg/L/standard deviation 25.6 mg/L/coefficient of variation 79 %) in the postmortem samples, respectively.  相似文献   
197.
A collaborative study was carried out by the European DNA Profiling Group (EDNAP) in order to evaluate the performance of Y-chromosome binary polymorphism analysis in different European laboratories. Four blood samples were sent to the laboratories, to be analysed for 11 Y-chromosome single nucleotide polymorphisms (SNPs): SRY-1532, M40, M35, M213, M9, 92R7, M17, P25, M18, M153 and M167. All the labs were also asked to submit a population study including these markers. All participating laboratories reported the same results, indicating the reproducibility and robustness of Y-chromosome SNP typing. A total of 535 samples from six different European populations were also analysed. In Galicia (NW Spain) and Belgium, the most frequent haplogroup was R1b*(xR1b1,R1b3df). Haplogroup F*(xK) is one of the most frequent in Austria and Denmark, while the lowest frequency appear in Belgium. Haplogroup frequencies found in this collaborative study were compared with previously published European Y-chromosome haplogroup data.  相似文献   
198.
Mading  Heinrich 《Publius》1989,19(4):115-131
In 1969 demands for greater rationality in education planninggave rise to new institutionalized forms of cooperation betweenthe federation and the Länder. Conflicts between the federaland Land governments, partisan conflicts, and financial conflictsoverlapped this cooperation. Despite the fact that the formalcapacity for dealing with conflicts had many shortcomings, ajoint general plan for education was issued in 1973 as a resultof favorable economic and political conditions. However, in1978 the federal government failed in its attempt to utilizethe dissatisfaction with the existing system of cooperationto extend its responsibilities for education. The deteriorationin economic and political conditions led to an end of effortsto formulate a general plan for education in 1982 and reducedthe scale of joint activities. Forms of educational cooperationbetween the federation and the Länder still exist, butthey no longer fulfill their original purpose. The centralizationof decisionmaking, which was originally expected, never cameinto being.  相似文献   
199.
For some years a discussion has been in progress among economists in the Soviet Union on methods of securing the active and positive participation of individual enterprises in a centrally planned economy. The main theme of discussion has been the problem: how to arrange the system of plan indices, prices, enterprise bonuses, etc. to encourage enterprise interest in higher plan assignments, introduction of new technology, and improvement of quality of output. On the following pages some excerpts from this debate are reproduced. However, since the problems discussed are now engaging also the Soviet political authorities, let us first quote a few sections from one of the many official statements made in this connection. The one we have chosen is from the report given by the Soviet Prime Minister N. S. Khrushchev at the CPSU Central Committee Plenary Meeting of November 19, 1962 (Pravda, November 20).  相似文献   
200.
There is a lack of community-based studies on prevalence rates of stalking and the impact of stalking on victims in continental European countries. The authors published the first community-based epidemiological study on stalking in Germany. The purpose of this paper is to discuss possible implications of these epidemiological data for the mental health system, forensic psychiatry and legal regulations in Germany. For these reasons some data of our epidemiological study are outlined and reanalyzed. To examine lifetime and point prevalence rates of stalking, behavioural and psychological consequences for victims and the impact of stalking on current psychological well-being in a German community sample, a postal survey was conducted with 2000 inhabitants randomly selected from Mannheim (response rate 34.2%, n=679). The survey included a stalking questionnaire and the WHO-5 well-being scale. Almost 12% of the respondents reported having been stalked. This study identified a high lifetime prevalence of stalking in the community. Effects on victims' psychological health were significant and there was a high rate of physical (31%) and sexual (19%) violence in the context of stalking. Our data suggest that the phenomenon deserves more attention in future forensic psychiatric research and practice. Implications for forensic psychiatric assessment and treatment of stalkers as well as for management of stalking victims are discussed.  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