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   379篇
  免费   20篇
各国政治   17篇
工人农民   41篇
世界政治   20篇
外交国际关系   18篇
法律   210篇
中国共产党   1篇
中国政治   17篇
政治理论   68篇
综合类   7篇
  2023年   8篇
  2022年   4篇
  2021年   4篇
  2020年   14篇
  2019年   19篇
  2018年   16篇
  2017年   25篇
  2016年   17篇
  2015年   14篇
  2014年   19篇
  2013年   46篇
  2012年   33篇
  2011年   16篇
  2010年   21篇
  2009年   20篇
  2008年   15篇
  2007年   19篇
  2006年   15篇
  2005年   14篇
  2004年   11篇
  2003年   9篇
  2002年   5篇
  2001年   7篇
  2000年   4篇
  1999年   3篇
  1998年   1篇
  1997年   2篇
  1995年   1篇
  1994年   1篇
  1993年   1篇
  1992年   2篇
  1990年   3篇
  1988年   3篇
  1987年   1篇
  1986年   2篇
  1985年   1篇
  1984年   1篇
  1983年   2篇
排序方式: 共有399条查询结果,搜索用时 15 毫秒
331.
Determination of sex using metacarpals was carried out on a sample of 249 skeletons from a Thai population (154 males and 95 females), ranging in age from 19 to 93 years. Six measurements were taken on each metacarpal, namely maximum length, medio-lateral base width, antero-posterior base height, medio-lateral head width, antero-posterior head height and mid-shaft diameter. Binary logistic regression equations were calculated for determining sex from these measurements. All metacarpals from both sides produced at least one equation that correctly allocated the skeletons with 80% or greater accuracy. In a comparative test using only individuals with no missing measurements (n=196), the most accurate equations for each metacarpal on the right side had pooled allocation accuracies ranging from 85.2% to 89.3%, with the best equation based on three measurements from the 5th metacarpal. On the left side, the most accurate equations for each metacarpal ranged from 83.2% to 89.8% correct allocation, with the best equation based on three measurements of the 2nd metacarpal. When the allocation accuracy for each sex is considered in addition to the pooled accuracy, the best equations involve the same three measurements of the 5th metacarpal on the right side, but shift to three measurements of the first metacarpal on the left side, with a pooled accuracy of 88.3%. The results of this study suggest that metacarpals can be used quite reliably for sexing in forensic contexts in Thailand.  相似文献   
332.
Animal-scavenging alterations on human remains can be mistaken as human criminal activity. A 32-day study, documenting animal scavenging on a human cadaver, was conducted at the Southeast Texas Applied Forensic Science facility, Sam Houston State University, Huntsville, Texas. A Stealth Cam Rogue IR was positioned near the cadaver to capture scavenging activity. An atypical scavenger, the bobcat, Lynx rufus, was recorded feeding on the cadaver. Scavenging by bobcats on human remains is not a predominant behavior and has minimal documentation. Scavenging behaviors and destruction of body tissues were analyzed. Results show that the bobcat did not feed on areas of the body that it does for other large animal carcasses. Results also show the bobcat feeds similarly during peak and nonpeak hours. Understanding the destruction of human tissue and covering of the body with leaf debris may aid forensic anthropologists and pathologists in differentiating between nefarious human activity and animal scavenging.  相似文献   
333.
The recent cycle of social struggles against precarity in Italy has been characterized by an extensive use of images representing precarious workers. This contribution explores this in the case of the Euro Mayday Parade (EMP) protest campaign. The subversion of existing popular culture traditions was the main objective of the activists' newly created icons such as San Precario, Serpica Naro and other visual tools. The visual work on gender in the EMP seemed to fill a gap between theoretical work on the feminization of affective and immaterial labour and the less predominant presence of gender. Visual icons seem to have been at least as successful as text messages in publicizing the precarity discourse and their production deserves further attention.  相似文献   
334.
The capability of Fourier transform infrared (FTIR) spectroscopic imaging to provide detailed images of unprocessed latent fingerprints while also preserving important trace evidence is demonstrated. Unprocessed fingerprints were developed on various porous and nonporous substrates. Data-processing methods used to extract the latent fingerprint ridge pattern from the background material included basic infrared spectroscopic band intensities, addition and subtraction of band intensity measurements, principal components analysis (PCA) and calculation of second derivative band intensities, as well as combinations of these various techniques. Additionally, trace evidence within the fingerprints was recovered and identified.  相似文献   
335.
336.
337.
Crime dramas provide entertainment to millions of Americans. The impact of viewing these programs on perceptions and expectations of police is a concern for practitioners, researchers and policy makers. While a growing body of research is identifying factors associated with the probability of clearance in offenses reported to police, a dearth of research looks at the portrayal of police efficiency in apprehending offenders in popular crime dramas. This study examines the depictions of police investigations across four fictional crime dramas. The authors find offenses are cleared at much higher rates than national averages and that several case characteristics typically associated with clearance in actual cases do not share the same relationship in these fictional programs. Results indicate substantial variation between programs in the depiction of the collection and utility of DNA evidence in assisting investigators to identify suspects. Findings are discussed in relation to data collected from actual police departments.  相似文献   
338.
339.
340.
While negative attributions are often made toward female victims of domestic violence, studies have not explored whether attributions shift contingent upon whether women stay with or leave abusive husbands. Further, no studies investigated whether negative attributions decrease if the participants receive information about the prevalence of domestic violence or the risks inherent in leaving an abuser. Therefore, two studies were designed that investigated attributions made by young adults when women either stay with or leave an abusive husband and whether educating the participants about prevalence of domestic violence and risks of leaving mitigate negative judgments. In both studies, young adults responded to surveys assessing attributions toward a female heterosexual victim of domestic violence. Results indicated that participants made more positive attributions about her personality characteristics and parenting ability if a woman left the relationship. Informing students beforehand about potential risks of leaving and personal experience with domestic violence did not erase this effect, but interactions mitigated some of the effects. Results suggest that educating young adults about risks of violence while useful, is not sufficient to change blaming attitudes. Educators may instead need to challenge the attribution process. Further research involving attributions toward gay and lesbian victims of domestic violence is suggested.  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