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931.
Along with the tradition of celebrating the importance of the Charter of 1215, there is a long tradition of skepticism concerning its purpose (which was not to achieve responsible government but to preserve the property of wealthy landowners), its force (it was annulled by the Pope and repudiated by the king within a few weeks), and even its success as a peace treaty (war broke out within a few months). The author will outline the reasons for skepticism, because we can only see what there is to celebrate in 2015, if we understand that the Charter of 1215 was the failed result of a reactionary armed tax rebellion by wealthy and powerful landowners, who were not trying to make a new constitution. What is there to celebrate? The author will address that question by asking why the Charter of 1215 was neither void (as the Pope asserted) for repugnancy to the King’s authority, nor voidable for duress. The author challenges the idea that the Charter of 1215 is the foundation of the rule of law in England, arguing that the rule of law goes back farther, and that the Charter of 1215 was very limited in its impact. But it did promote the rule of law in two ways: by giving new specificity to legal duties and restrictions that the king had already been subject to, and by highlighting the country’s need for effective processes for giving effect to those duties and restrictions.  相似文献   
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Lavrentii Beria built up one of the most powerful patronage networks in Soviet history. Its success represents a unique case in Soviet history in which a regionally based secret police patron-client network, comprised primarily of representatives of ethnic minorities, took control first of the civilian leadership of one of the major regions of the Union, and then of the most powerful institution in the USSR, the national secret police, and subsequently became one of the main competing factions in the “crypto-politics” of the late-Stalin era. The fact that the Beria network emerged from the secret police gave it certain advantages in the political struggles of the period, but it also held weaknesses that played a role in Beria’s final undoing. The evolution and political struggles of Beria’s network also shed light on the inner workings of the competition among informal networks that made up the crypto-politics of the period. Using recent memoirs, new archival sources and interviews, this article will examine how Beria developed, managed and advanced his informal network, giving particular attention to the specific and unique outcomes that resulted from the rooting of this network in the secret police, at five critical junctures in Beria’s career.  相似文献   
936.
This study examined the longitudinal association between contextual stress and health risk behaviors and the role of protective factors in a community epidemiologically-defined sample of urban African American adolescents (N = 500; 46.4% female). Structural equation modeling was used to create a latent variable measuring contextual stress (community violence, neighborhood disorder, and experiences with racial discrimination). Contextual stress in 8th grade was associated with aggressive behavior and substance use 2 years later for boys. For girls, contextual stress predicted later substance use, but not aggressive behavior. High academic competence and self-worth reduced the impact of contextual stress on substance use for boys. Implications for intervention and directions for future research on health risk behaviors among African American adolescents are discussed.  相似文献   
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Successful mitochondrial DNA (mtDNA) forensic analysis depends on sufficient quantity and quality of mtDNA. A real-time quantitative PCR assay was developed to assess such characteristics in a DNA sample, which utilizes a duplex, synthetic DNA to ensure optimal quality assurance and quality control. The assay's 105-base pair target sequence facilitates amplification of degraded DNA and is minimally homologous to nonhuman mtDNA. The primers and probe hybridize to a region that has relatively few sequence polymorphisms. The assay can also identify the presence of PCR inhibitors and thus indicate the need for sample repurification. The results show that the assay provides information down to 10 copies and provides a dynamic range spanning seven orders of magnitude. Additional experiments demonstrated that as few as 300 mtDNA copies resulted in successful hypervariable region amplification, information that permits sample conservation and optimized downstream PCR testing. The assay described is rapid, reliable, and robust.  相似文献   
939.
Suicide by burning is an extreme act that is uncommon in the United States and throughout the Western world. The characteristics of people who complete such acts are not well understood. To address this issue, we examined the death records of the King County Medical Examiner's Office in Washington State over the 13 years from 1996 to 2009. Twenty-five cases of suicide by burning were identified and used to characterize decedent demographics, circumstances of death, and motivating factors. Compared to other methods of suicide, burning demonstrated a significant overrepresentation of decedents who were women, 40-59 years of age, and Asian/Pacific Islander. They also tended to have previous psychiatric illness and/or substance abuse issues. Self-burning predominantly occurred at the decedent's residence with the intent of suicide given. There was no unifying theme in motivating factors. Together, these data represent the characteristics of people whose death is because of suicide by burning in King County, Washington.  相似文献   
940.
A procedure has been developed to analyze the trace element concentrations in glass fragments using particle-induced X-ray emission (PIXE) spectrometry. This method involves using accelerated protons to excite inner-shell electronic transitions of target atoms and recording the resultant X-rays to characterize the trace element concentrations. The protocol was able to identify those glass fragments that originated from different sources based on their elemental analyses. The protocol includes specific approaches to calculating uncertainties and handling measurements below the level of detection. The results indicate that this approach has increased sensitivity for several elements with higher atomic number compared with X-ray fluorescence methods. While not as sensitive as laser-ablation or inductively coupled plasma mass spectrometry methods of dissolved samples, it is entirely nondestructive and entails a much simpler sample preparation process that may be used to presort glass fragments for more comprehensive elemental analysis. As such, the technique described may have a niche role in forensic glass analysis.  相似文献   
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