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921.
A simple method using purge-and-trap gas chromatography/mass spectrometry (P&T-GC/MS) for forensic examination of oil stains was studied. Carboxylic acids, chosen as target components for discrimination of oil samples, were extracted from stains with ether, methyl esterified by tetramethylammonium hydroxide, and analyzed by P&T-GC/MS. Vegetable oils were discriminated according to their carboxylic acid compositions. Carboxylic acid composition was independent of the substrate material of the stain. Although the carboxylic acid composition of the oil changed on exposure to sunlight, identification of oil was possible for oil stains that had been in the shade, if analysis was made within 20 days. 相似文献
922.
923.
L Quan B L Zhu K Ishida M Taniguchi D R Li Y Kamikodai M Q Fujita H Maeda 《Forensic science international》2001,124(1):62-67
This article reports an autopsy case of sudden death of an infant with an infrequent encephalopathy involving epileptic episodes. The infant was a 1-year and 10-month-old boy, who had a history of the first convulsive seizures in the third month after birth. The clinical diagnosis was described as 'an early infantile epileptic encephalopathy with suppression-bursts' (Ohtahara syndrome). On a winter day, he was collapsed following a high fever and was already dead on the arrival at a hospital. The body was small for the age and poorly nourished. The autopsy and postmortem magnetic resonance imaging scan (MRI) of formalin-fixed brain revealed advanced unsymmetric brain atrophy with cortical dysplasia, which were prominent in the left temporal and right occipital lobes, and sclerotic atrophy of the parahippocampal gyri, additionally showing a feature of the olivo-ponto-cerebellar atrophy. However, the cause of death was pathologically and microbiologically determined as bacterial bronchopneumonia following pulmonary infection of the influenza A virus. In sudden death cases of physically handicapped infants, the investigation of viral infection in consideration of an epidemiological survey is important even when the death can be pathomorphologically explained. 相似文献
924.
The proposed rule for electing members to the Welsh Assembly gives each voter two votes, to cast at the Parliamentary constituency level, and at the bigger European constituency level. Half of the members are to be elected for the Assembly by a form of proportional representation, where party support is calculated by aggregating the two votes. The voters will be allowed to cast the second vote for a different party than the one for which they voted at the parliamentary level. This additional degree of freedom can frustrate the objective of obtaining better correspondence between party support and the number ofseats. 相似文献
925.
This study explores the role of the news media in asymmetrical conflicts after countries have signed a peace agreement. While most research has focused on the inherently negative role the press plays in attempts to bring peace, this study attempts to look at this issue using a more dynamic perspective. The theoretical argument focuses on how political factors affect the quantity and quality of the news flow and some of the ways in which leaders can sometimes overcome the obstacles they face in promoting encouraging news about peace. The model considers two political factors that have a major impact on media performance: the relative level of political power of the two sides and the varying amount of hostility. To illustrate the importance of these factors we focus on the flow of news between Jordan and Israel between 1999 and 2002. The major findings from content analyses of news articles ( N = 859) appearing in both countries show that while Jordanians are exposed to massive amounts of mostly negative information about Israel, the Israeli public reads almost nothing about Jordan. Despite all this, it was also found that the initiation of diplomatic relations between the former enemies allowed for the creation of important 'news slots' that were previously unavailable. This development created space for less threatening types of news and also allowed leaders from both Jordan and Israel to initiate some positive stories about peace, even during some of the darkest periods. 相似文献
926.
927.
Lance Y. Hunter 《冲突和恐怖主义研究》2016,39(2):165-193
This article examines the effect terrorism has on civil liberties and political rights across a wide range of democracies and regions. This study includes an analysis of the influence domestic and international terrorist attacks have on civil liberties and political rights in 48 democratic states from 1971–2007. The results from a time series cross-national analysis reveal that terrorism weakens civil liberties and political rights. However, certain types of democracies are more affected by terrorism than others. These findings have important implications for democracy and counterterrorism strategies in democratic states. 相似文献
928.
929.
Kimberly L. Henry Peter J. Lovegrove Michael F. Steger Peter Y. Chen Konstantin P. Cigularov Rocco G. Tomazic 《Journal of youth and adolescence》2014,43(2):221-232
Adolescent bullying is a common problem in schools across America. The consequences of bullying are significant, and can include severe psychological trauma and suicide. A better understanding of the mechanisms that link bullying and suicidal ideation is needed in order to develop effective prevention and intervention initiatives. Meaning in life is a potential mechanism that has not been studied in this context. It was hypothesized that meaning in life could serve as both a mediator and a moderator of the relationship between bullying victimization and suicidal ideation. As a mediator, meaning in life is considered to explain why bullying victimization leads to suicidal ideation. As a moderator, meaning in life is considered to buffer the ill effect of bullying victimization on suicidal ideation. Data collected from an ethnically diverse sample of 2,936 (50 % female), 6th–12th grade students from one urban school district in the Northeastern US were used to examine the hypotheses. The model for girls was consistent with mediation (i.e., meaning in life may explain how victimization leads to suicidal ideation). The model for boys was consistent with moderation (i.e., the ill effect of victimization on suicidal ideation was attenuated as meaning in life increased). Implications for prevention are discussed. 相似文献
930.