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   126篇
  免费   4篇
各国政治   2篇
工人农民   3篇
外交国际关系   2篇
法律   110篇
中国政治   1篇
政治理论   10篇
综合类   2篇
  2022年   1篇
  2019年   2篇
  2018年   5篇
  2017年   4篇
  2015年   3篇
  2014年   1篇
  2013年   3篇
  2012年   4篇
  2011年   7篇
  2010年   3篇
  2009年   7篇
  2008年   7篇
  2007年   13篇
  2006年   7篇
  2005年   15篇
  2004年   11篇
  2003年   14篇
  2002年   14篇
  2001年   3篇
  1999年   1篇
  1998年   1篇
  1970年   1篇
  1968年   1篇
  1967年   2篇
排序方式: 共有130条查询结果,搜索用时 31 毫秒
121.
When Hurricane Katrina struck New Orleans in August 2005, it greatly disrupted both the physical and social structures of that community. One consequence of the hurricane was the displacement of large numbers of New Orleans residents to other cities, including Houston, San Antonio, and Phoenix. There has been media speculation that such a grand-scale population displacement led to increased crime in communities that were recipient of large numbers of displaced New Orleans residents. This study was a case study of three cities with somewhat different experiences with Katrina's diaspora. Time series analysis was used to examine the pre- and post-Katrina trends in six Part I offenses (murder, robbery, aggravated assault, rape, burglary, and auto theft) to assess any impact of such large-scale population shifts on crime in host communities. Contrary to much popular speculation, only modest effects were found on crime. Social disorganization theory was used to frame both the analysis and the interpretation of these results.  相似文献   
122.
There is strong evidence that men and women do not agree about the occurrence of intimate partner violence (IPV). However, few studies to date have attempted to test explanatory models of violence concordance. One possible mechanism underlying disagreement is cognitive impairment, specifically, memory dysfunction. The principal goal of this study is to test whether memory ability and overall cognitive functioning is related to disagreement about the most recent occurrence of IPV within the dyad. Data were collected from both partners of cohabiting or married couples. The male partners were polysubstance abusers within their first year of abstinence. Results indicate that the men and womens memory ability, problem solving, disinhibition, and verbal ability are significantly related to disagreement about the most recent IPV episode. Thus, cognitive ability, particularly memory ability, of the participants should be considered when assessing the accuracy of measuring IPV among individuals diagnosed with polysubstance abuse. Other implications are discussed.1Portions of this paper were presented at the 128th annual meeting of the American Public Health Association (2000).  相似文献   
123.
A population study on 13 tetra- and pentameric STR loci (D3S1358, VWA, D8S1179, D21S11, D18S51, D16S539, D2S1338, D19S433, THO1, FGA, ACTBP2 (SE33), Penta D and Penta E) was performed with Romanians from the Bucharest area.  相似文献   
124.
In contrast to typical autoerotic fatalities, when death is due to asphyxia mostly by mechanical compression of the neck, atypical autoerotic accidental deaths (AADs) involve sexual self-stimulation by other means such as electrocution or inhalation of chemical agents. Especially in lethal cases of volatile substance abuse (VSA), a differentiation between suicide or sexually or nonsexually motivated accident is often complicated in practical casework. Considering the small number of AADs involving chemical substance abuse reported in the literature, the number of unreported cases seems to be very high. We report about 5 lethal cases of VSA; analysis was performed using headspace solid-phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC/MS). When headspace sampling is not performed at autopsy, the analysis of volatile substances can be very complicated. In 2 cases, an AAD was diagnosed considering findings at the scene, reconstruction of the event, and discussion of the circumstances of the death. These findings demonstrate the importance of VSA in atypical autoerotic asphyxia. Therefore, in cases of suspected lethal inhalational intoxications, as a matter of principle, headspace asservation should be performed at autopsy and an autoerotic motivational background should be taken into consideration for differential diagnosis.  相似文献   
125.
In order to gain information regarding the ethnic origin of an unknown offender in a murder case it was necessary to sequence the HV1 and 2 regions of the mitochondrial DNA (mtDNA). The only evidentiary material that could be linked to the suspect was DNA, extracted from spermatozoa after differential lysis. The observed mtDNA sequences were identical to the sequences of the victim. Therefore, we had to check if this was a coincidence or the result of a technical limitation of the testing procedure. Subsequently, we performed a systematic study. In cases with complete separation of sperm and female cells it wasn't possible to obtain a mtDNA sequence for the sperm fraction. This phenomena is based on the loss of the sperm's flagellum and mid-piece during the first lysis step and a concomitant loss of the sperm's mitochondria. In our murder case, a minor carry-over of female cells to the sperm fraction was responsible for the sequencing result.  相似文献   
126.
In contrary to "physical restraint", describing a fixed body position due to external devices, "positional restraint" is defined as an abnormal body position, resulting from accidental fixation under unfortunate circumstances. We report on a remarkable case of positional asphyxia of an alcoholised young man after a fall down a staircase. On external examination, the body showed petechiae of the conjunctivae and oral mucosa, abrasions on the left zygomatic region and scratch marks, respectively. Neither broken fingernails, etc. nor signs of external violence against the neck were found. Autopsy revealed haemorrhages in the praevertebral cervical musculature and Simon's sign. Haemorrhagic pulmonary edema and cerebral edema were observed; blood alcohol concentration: 2.60 g/l, urine alcohol concentration: 3.26 g/l. As cause of death, positional asphyxia after blunt head trauma has to be considered as well as lethal ethanol intoxication. To us, alcoholisation attributed to the fall and together with unconsciousness following blunt head trauma circumvented self-rescue efforts, and therefore, aggravated the potentially lethal impact of positional restraint.  相似文献   
127.
In cases of suicidal gunshots, the capacity to act may be preserved for a certain period of time, so that the suicide may be completed with another method. In the presented case a 74-year-old man was found hanged on the first floor of his house with two gunshot wounds in the chest. Both on the ground and the upper floor traces of suicidal acts were detected. As shots to the precordial region suggest rapid incapacitation, a suicide extending over two floors seemed almost impossible without knowledge of the cause of death and evaluation of the ability to act. The autopsy findings confirmed vital signs of hanging. Moreover, a through-and-through gunshot wound of the chest and abdomen affecting the spleen and a shot lodged in the body without injuring the lung were found. The injury findings thus sufficiently explained the preserved ability to act. The presented case shows characteristics of a complex suicide not yet described so far, but could be clearly classified as suicide in congruity with the pertinent literature.  相似文献   
128.
Numerous methods have been proposed in the last 60 years for the determination of the time since death by chemical means. Many of them were reviewed by Schleyer in his monograph on the determination of the time since death by means of thanatochemistry about 40 years ago and none of these early methods has gained any practical value since they do not meet the demands in practice (being precise, reliable, giving an immediate result). While the earlier studies were mainly carried out on blood and cerebrospinal fluid (CSF) since the late 60s most investigations have been performed on vitreous humor (VH). This is mainly due to the fact that vitreous humor is topographically isolated and well protected, and thus, autolytic changes proceed slower compared to blood and CSF. The most studied parameter in VH is potassium and even nowadays reports on the postmortem rise of vitreous potassium are published, proposing new analytical methods or statistical evaluations. Chemical parameters studied for the determination of the time since death have to be differentiated according to the underlying process (catabolism, metabolic processes, pure autolysis and diffusion, putrefactive changes). In the present paper, recent studies on thanatochemistry are discussed regarding the underlying process, the analytical methods (for instance H magnetic resonance spectroscopy (1H MR spectroscopy), immunohistochemistry), the studied fluid compartment, the statistical evaluation and the precision of death time estimation. The value of chemical methods for the determination of the time since death is up to now very limited. This is supported by the fact that field studies on the reliability and precision of death time estimation by chemical means are still scarce in the literature.  相似文献   
129.
The colour of the human skull was determined from 124 fresh skull samples using the tristimulus colour measurement system "Micro Color" and listed as The Commission Internationale de l'Eclairage (CIE) L*a*b*-values. The skulls were found to be relatively light (L*=72.5), nearly colourless on the a*-axis (a*=-7.4), and slightly yellow (b*=16.4). No difference was found between the colours of the outer and the inner surfaces of the skulls. Including a small number (n=8) of skulls from diabetic patients in the study, we detected no colour difference between the samples from diabetics and non-diabetics. However, a hitherto unknown correlation between the subjects' age and the yellowness (b*-value) of the skull could be demonstrated.  相似文献   
130.
To date, there is no systematic investigation of the association of short tandem repeat (STR) typing success rate in soft tissues with different signs of putrefaction. Herein, putrefaction was rated using a newly developed 19‐parameter system in soft tissues from a collective of 68 decaying bodies, and DNA yield was determined in 408 samples. DNA integrity was rated using a self‐devised pentaplex PCR generating an “integrity score” (Si). STR typing success rate was then assessed for selected cases. DNA yield and Si differed significantly between tissues with kidney on average exhibiting the highest Si values. Statistical analysis revealed that nine parameters were significantly and positively correlated with Si. The observed values for each of these nine parameters were summed up to generate a putrefaction score (Sp) for each sample. Our results show that STR typing success rate can be predicted based on Sp before expensive multiplex STR profiling is performed.  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