GC／TSD法检验杀虫双

目的建立一种杀虫双的GC分析方法。方法应用HP-5弹性石英毛细管柱(30m×0.53mm×1.5μm),用GC/TSD方法对生物检材中的杀虫双进行检验。结果可以快速、有效地检出中毒死亡者胃内容中的杀虫双成分。结论该方法简单、准确、快速,可很好地应用于案件的检测工作。     

WTO的环境立场与环境规则

当环境保护和可持续发展成为世界主流之时,作为经济贸易协调机制的GATT-WTO也对之充分重视。通过30年的研究、讨论、争端解决过程,WTO逐渐确立了其对环境问题的态度,在贸易规则中加入环境保护的内容。但是这些规则仍有待于进一步深化、具体和明确。可以预期环境问题将会成为国际贸易中的主要问题,面临着2002年约翰内斯堡世界可持续发展峰会,WTO的多哈回合会在环境问题上建立更多的规则。中国应当在国际法和国内法层面为实现可持续发展努力。     

Classroom training in sexual victimization awareness and prevention skills: An extension of the Red Flag/Green Flag people program

This study is an extension of a previous evaluation of a program (Red Flag/Green Flag) in which children, parents, and teachers were exposed to a workbook and film designed to teach personal safety strategies for preventing sexual victimization or encouraging adult assistance through disclosure of such incidents. In the current investigation, only children and their teachers received this didactic training program. Children and teachers from neighboring schools were assigned to a Training or Control group. Self-reports from children, teachers, and parents, as well as guidance counselor incident reports, were obtained to evaluate outcome. Results indicated greater gains in general knowledge and prevention skills at post-training and 6-month follow-up for trained than control children. Some improvements were made by trained teachers and parents of trained children. Child reports of personal experiences and guidance counselor incident reports were in accord with the assistance component of the program. However, the pattern of reports across sources is difficult to interpret. The findings are discussed in light of salient issues regarding the content of training, child disclosure, and methodology.     

Inequality,Ethnicity, Political Mobilisation and Political Violence in Latin America: The Cases of Bolivia,Guatemala and Peru*

The paper explores the relationship between political violence and ‘horizontal’ inequality in ethnically‐divided countries in Latin America. The cases studied are Bolivia, Guatemala and Peru. Preliminary results are reported on the measurement of horizontal inequality, or that between groups, defined in cultural, ethnic and/or religious terms. The Latin American cases are shown to be often more unequal than the cases from Africa and Asia included in the wider study of which the work forms a part. The complex relationship between such inequality, ethnicity and political violence is explored historically. Ethnicity is today rarely a mobilising factor in violence in the Latin American cases, but the degree of inequality based on ethnicity is shown to be highly relevant to the degree of violence which results once conflict is instigated. History explains why.     

H9N2亚型禽流感病毒聚合酶基因的克隆及序列分析

采用RT-PCR方法对1株H9N2亚型禽流感病毒Ck/GS/2/99株RNA聚合酶基因PB2、PB1和PA分别进行了扩增,将其克隆到pGEM-T easy载体后进行序列测定与分析。结果表明,该株病毒的PB2、PB1和PA基因开放阅读框(ORF)分别由2280、2274和2 151个碱基组成,分别编码759、757和716个氨基酸。经同源性与系统发生树分析,该毒株RNA聚合酶基因PB2、PB1和PA与Ck/NX/4/99株的核苷酸和氨基酸同源性均在98%以上,另外这3个基因与Dk/HK/Y280/97、Sw/HK/9/98和Qu/HK/NT/28/99株的关系密切。     

Self-reported crime rates of women prisoners

This paper presents findings from the first study of female prisoners' self-reports of criminal activity. Using the criminal career paradigm to frame the analysis, self-reported estimates of crime participation and frequency rates were examined for eight felony crimes. Important similarities between women and men were found in overall patterns of crime. Specifically, a small proportion ofboth women and men described committing a large portion of the total crimes reported. These data also suggest that women and men are similar in violent crime participation — a finding that varies from the current literature. Once active in a crime type, women and men committed assault, theft, and forgery at significantly different rates; no gender differences were found in the annualized frequency rates of burglary, robbery, motor vehicle theft, fraud, and drug dealing. However, although statistical differences were not found in the overall frequency of drug dealing, specific patterns of drug dealing reflected considerable gender variation, with a larger proportion of the female sample committing very frequent (daily) drug dealing activity. The findings reflect the value of the criminal career paradigm for the study of gender differences. Future research should include largescale quantitative designs that allow detailed analyses of correlates of the distinct criminal career dimensions.Points of view are those of the author and do not necessarily reflect the official position of the U.S. Department of Justice.This research was funded in part by the National Institute of Justice, Grant 87-IJ-CX-0048.     

应用气相色谱电子捕获检测器检测生物体内拟除虫菊酯杀虫剂

本文研究了一种同时测定生物样品中二氯苯醚菊酯、氯氰菊酯、杀火菊酯、溴氰菊酯的方法,并详细介绍了试管提取净化的过程。在安装电子捕获检测器的气相色谱仪上,选择不同极性的色谱柱和优选操作参数,能使上述4种杀虫剂达到基线分离,并在20～25分钟内同时完成分析。添加生物样品肝、胃,脑、血中的回收率达到70～90％;变异系数在±0.03～0.08范围。应用本文建立的方法,对中毒兔(溴氰菊酯和杀灭菊酯)各脏器均检出了原体杀虫剂,并成功地运用于一些法庭中毒案件的鉴定。     

Y chromosome STR haplotypes and allele frequencies in Illinois Caucasian, African American, and Hispanic males

POPULATION: Population: Illinois Caucasian ( n =117), Illinois African American ( n =218), and Illinois Hispanic ( n =68).     

The judicial response to crime and the criminal: A utilitarian perspective

This paper examines the hypothesis that the sentencing decision of the criminal court is consistent with utilitarian principles and that the judiciary uses the length of incarceration as an instrument for the maximization of societal well-being. A theoretical model is developed, whose principal arguments are offender and offense attributes, resource costs, the availability of alternative sanctions, and the general crime rate. Four questions are considered: (i) How does a utilitarian court respond to a general increase in crime? (ii) How does the availability of alternative sanctions affect the length of incarceration ? (iii) How does a utilitarian court respond to offenders who are more likely to recidivate? (iv) How does the court respond to offenders who commit more serious offenses? The model is empirically evaluated, using cross-sectional data for the state of Georgia for individuals sentenced to prison in 1978 for a UCR index offense. The theoretical model provides few specific behavioral rules for the court to follow. Answers to the foregoing four questions are shown to depend upon both the efficacy of sanctions and the cost of the administration of those sanctions. It is not possible to predict, for example, how a utilitarian court should respond to a rise in crime or how it should respond to offenders who are likely to commit more serious offenses. The empirical analysis shows that, in fact, the sentence length varied inversely with the general offense rate, with the likelihood of imprisonment, and with the length of postprison probation. The evidence also indicates that sentences vary with the individual's original record but not with the offender's age or race. With the exception of possible gender bias, the court's sentencing behavior was consistent with utilitarian principles.