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1.
Fatal fall from a height initiated with a swinging motion on the sagittal plane of the victim's body is examined. Method of analytical mechanics is adopted to establish the functional relations between the swinging angle of the body and the force needed to sustain the body until release, and the amount of the horizontal displacement that would occur after release. The analysis is applied to support an expert opinion presented in a criminal court in which two accused were convicted of murder for dropping a female victim from a bridge. The results indicate that it is unlikely for the body to locate as recorded by the police investigation report in the case. This study demonstrates that a straightforward mechanical analysis can be utilized to examine uncommon falling scenarios.  相似文献   
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Past research has largely ignored the developmental changes within the child that account for the association between parenting and risk for delinquency. We used structural equation modeling and data from a longitudinal study of several hundred African‐American families to test the contentions of various theories regarding the sociocognitive and emotional factors that mediate the impact of parental behavior on a youth's risk for delinquency. Our findings largely supported the theories. The impact of monitoring/discipline was indirect through low self‐control and acceptance of deviant norms, whereas the effect of hostility/ rejection was indirect through low self‐control, hostile view of relationships, and acceptance of deviant norms. These two dimensions of parenting were no longer related either to affiliation with deviant peers or to conduct problems once the effects of these psychological characteristics were taken into account; the impact of these parenting practices was completely mediated by these four cognitive/affective variables. Contrary to expectation, however, these psychological factors did not mediate any of the relationship between caretaker involvement in antisocial behavior and child conduct problems.  相似文献   
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为密切配合“中国-非洲-美国三方对话会”的成功召开,本刊特发表关于这次会议的综述性文章《和而不同助推非洲发展——“中国-非洲-美国三方对话会”综述》。文中综合介绍的观点和看法仅代表发言者本人。希望广大读者能对文中的观点进行甄别与研判,并从中得到有益的启示。  相似文献   
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The partnership principle in EU cohesion policy was introduced in order to involve subnational authorities and interest organizations in policy formulation and implementation. In this article we examine how the member states have reacted to this call for a new way of making public policy. We argue that the multi‐level governance literature and the critics of the multi‐level governance framework have not examined implementation structures properly, but have focused on regional influence. We conduct a comparative analysis of the Dutch and Danish implementations of the European Social Fund and the European Regional Development Fund. Our findings show that when examining implementation structures it becomes clear that member states are in full control of the re‐allocation of EU funds. They show that Denmark and The Netherlands have been able to absorb EU cohesion policy within already existing national implementation structures of labour market policies and regional development. One central theoretical implication of our study is that the focus of studies of any fundamental re‐allocation of power resources in cohesion studies should comprise the entire network of implementation rather than the strategies of its individual component actors.  相似文献   
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从广西患花肝病的雏番鸭肝、脾分离到 3株病毒 ,定名为NM1、NM2 、NM3。这 3株病毒能在番鸭胚和番鸭胚成纤维细胞上增殖 ,并产生细胞病变。人工感染 1日龄番鸭致死率达 10 0 % ,但对鸡、康贝尔鸭和鹅不致病。分离毒对氯仿不敏感 ,耐热、耐酸 ,不被DNA抑制物所抑制。分离毒的细胞培养物经超薄切片 ,磷钨酸负染 ,在电镜下观察到大量球形、实心 (少量空心 )的病毒粒子 ,其直径 6 6~ 70nm ,无囊膜 ,属无囊膜的RNA病毒  相似文献   
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安维华 《西亚非洲》2007,(10):10-17
中东再次出现新的"石油繁荣",被称为"新石油时代"。中东油气业已形成较完整的产业链,改变了昔日单一出口原油的局面。20世纪70年代油价高涨是对在这之前国际石油垄断资本长期强加的超低油价的补偿,存在与外国资本之间的对抗;而这一次"新石油时代"则主要靠石油经济实力的支撑,随着经济的全球化,与外国资本之间的关系也已有所改变。评价高油价需扣除美元贬值的因素。20世纪"高油价—经济滞涨—石油供过于求—油价回跌"局面不会简单重复。政治仍然是影响中东油气业发展的重要因素。  相似文献   
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The present study explores the relationships between gender and imprisonment decisions in Minnesota before and after the introduction of sentencing guidelines. Results from a series of logistic regression models indicate that gender alone did not have a significant impact on the likelihood of imprisonment, but women with dependent children were significantly less likely to be imprisoned before sentencing guidelines and in the years subsequent to their implementation. The findings suggest that despite the introduction of sentencing reforms, court officials tend to return to issues of substantive justice, and they appear unable to shed their individual or organizational ideas of fairness in sentencing.  相似文献   
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