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121.
建立生物试样中常见巴比妥类药物的固相提取和柱上衍生化GC/MS分析法。将预制的血或肝分别在pH6.0和pH2.2的条件下过预活化的GDX-403吸附小柱,再用缓冲浪和蒸馏水各4ml顺序洗柱。最后用4ml丙酮/氯仿(1:1)溶剂洗脱样品,离心弃除水相,80℃挥至近干,用50μl乙醇定溶、取净化的样品2~4μl挥至近干,加20μl0.2molTMAH衍生化试剂,直接进样0.5μl,柱上衍生化GC/MS(GC)分析。在试验条件下,当血和肝分别添加2.0μg和5.0μg混合药物,回收率≥80%,相对标准差(RSD)优于±10%,检测限优于5ng(信/噪比≥2)。该法能有效地排除类脂物和组胺的干扰,可用于治疗量级药物分析和婴幼儿中毒案检验。 相似文献
122.
目的建立尿中2,4-D、2,4-DP、MCPA、MCPP等4种苯氧羧酸类除草剂的分析方法;方法液液提取分离,乙醚为提取液,DCPA为内标,硫酸正丁醇酯化衍生化,气质联用分析法分析;结果尿中4种除草剂添加样品的相对回收率在80%以上,检测限都在5ng/ml以下,对中毒兔尿样进行了分析;结论对实际发生的中毒案件分析有足够的灵敏度。 相似文献
123.
奥巴马政府上台后,美国核不扩散政策出现了重要转变。这一转变既是奥巴马政府对布什政府核不扩散政策进行反思的结果,又是修复美国国际形象和维护其世界领导地位的战略需要,更是美国对朝鲜和伊朗的核开发问题施加压力的一种手段。奥巴马政府对美国核不扩散政策的调整,有利于国际核军控工作走上正轨;将对中国产生多重影响;对地区核问题的解决所产生的效果具有不确定性。 相似文献
124.
Desmond Ellis 《Family Court Review》2008,46(3):531-536
Approximately 50% of couples who have separated report being victims of violence and/or emotional abuse by their former intimate partners. Family courts can make an important contribution toward reducing the number of intimate partners who report being victims of domestic violence and abuse during and following their participation in divorce proceedings in three ways. First, increase opportunities for participation in nonadversarial procedures. Second, implement mandatory assessment/screening for domestic violence using field‐tested instruments that link subscores on sets of items (e.g., control motivated violence, conflict instigated violence/abuse, substance abuse associated violence/abuse) with appropriate community‐based treatments and/or resources. Third, educate family court judges, lawyers, mediators, and other court personnel in the dynamics of domestic violence generally, as well as the dynamics associated with separation/divorce. 相似文献
125.
Christina Fink 《Contemporary Politics》2008,14(4):447-462
Despite a dramatic reduction in fighting in Burma's ethnic states, militarization has increased as the regime seeks to extend its sovereignty and capitalize on economic opportunities. Rather than ensuring civilians' safety, militarization has exposed more civilians to human security threats, with serious consequences for families and communities. Abuses are likely to continue as long as the regime under-finances its army, disregards disciplinary problems, and receives diplomatic cover from its foreign economic partners. While civilians have sought to manage these threats as best they can, their degree of agency is, in most cases, highly constrained, and women have been particularly affected. Nevertheless, the development of community-based organizations which make use of porous borders to expose abuses and provide assistance to distressed communities constitutes an important, if limited, development. 相似文献
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128.
课程是职业教育改革的核心。本文在分析了工作过程系统化课程内涵的基础上,以《PRO/ENGINEER》课程为例。阐述本课程的基于工作过程为导向的教学情境设计思路及实施过程。 相似文献
129.
Research Summary In this article, we use data from the 1973 to 2005 National Crime Victimization Survey (NCVS) to estimate previously unknown trends in serious nonfatal violent victimization for Latino, non-Latino Black, and non-Latino White males in the United States. Past research has shown that Blacks and Latinos have been more susceptible than Whites to financial hardship during economic downturns and that economic disadvantage is an important correlate of violence in cross-sectional analyses. If significant declines in the national economy contribute to increases in violence, then crime trends disaggregated by race and ethnicity should show greater changes among minorities during periods of economic downturn. Although rates of violence have declined for all groups, we find that trends for Latino and Black males are similar and closely follow changes in consumer sentiment. In contrast, trends for White males display fewer fluctuations coinciding with changes in economic conditions. Continued disaggregation shows that these patterns appear primarily in stranger violence and not in violence by known offenders. The patterns also suggest that the association between changing economic conditions and male victimization trends might have weakened in recent years. Policy Implications The findings raise concerns about the potential impact of recent economic changes on the risk for serious victimization, particularly among Blacks and Latinos. In light of the possible recent weakening of the relationship between economic changes and crime, future research should assess whether criminal justice policies and other factors moderate the relationship between economic conditions and victimization and use group-specific measures of violence so that important variability across race and ethnicity is not masked. These analyses also should be expanded to consider the potential effects on violence of government policies designed to alleviate poverty and unemployment. 相似文献
130.
在我国,新世纪以来几件为公众周知的事件促生了一些人所称道的法规和案例。“因事成制”的思维和路径契合我国文化传统,是“因势成事”的具体表现。“因事成制”可以创新制度,也可以进行法律移植。“因事成制”有其存在的现实必要性和可能性,既体现了政治家使新闻传播权利“软着陆”的智慧,又有着深厚的法学理据,论题学法学、伯克利学派,以及哈耶克的有关理论等皆可使其得以证立。“因事”包括“借事”与“造事”,新闻法制变革借事成制已有,而造事未见。 相似文献