Pig Organ Energy Loss Comparison Experiments Using BBs

Torso models for ballistics research require that the mechanical properties of simulant materials must match the heterogeneous nature of tissues/organs within the human thorax/abdomen. A series of energy loss experiments were conducted on fresh porcine organs/tissues at room temperature and 37°C, using steel 4.5 mm BBs fired from a Daisy^® brand air rifle. They were compared to FBI and NATO specification ordnance gelatin and a candidate surrogate material called Simulant “A”. Two CED M2 chronographs measured BB velocity. The resulting energy loss was established using KE = 1/2 mv² before and after target perforation. The combined results at room temperature and 37°C were as follows: FBI specification gelatin was similar (p > 0.05) to heart and lung, spleen was similar to NATO specification gelatin, Simulant “A” was similar to hindquarter muscle, and hindquarter muscle, kidney, and spleen were similar to each other regarding energy retardation. These results can be used as a basis for the development of simulant materials to create an anatomically correct heterogeneous model.     

A Procedure for Calculating the Vertical Space Height of the Sacrum When Determining Skeletal Height for Use in the Anatomical Method of Adult Stature Estimation

Estimating stature from skeletonized remains is one of the essential parameters in the development of a biological profile. A new procedure for determining skeletal height (SKH) incorporating the vertical space height (VSH) from the anterior margin of the sacral promontory to the superior margins of the acetabulae for use in the anatomical method of stature estimation is introduced. Regression equations for stature estimation were generated from measurements of 38 American males of European ancestry from the William M. Bass Donated Skeletal Collection. The modification to the procedure results in a SKH that is highly correlated with stature (r = 0.925–0.948). Stature estimates have low standard errors of the estimate ranging from 21.79 to 25.95 mm, biases from to 0.50 to 0.94 mm, and accuracy rates from 17.71 mm to 19.45 mm. The procedure for determining the VSH, which replaces “S1 height” in traditional anatomical method models, is a key improvement to the method.     

鞘胺醇1-磷酸2/3受体对心肌缺血再灌注损伤的影响

目的观察鞘胺醇1-磷酸2/3受体(S1PR2/3)在大鼠心肌缺血再灌注的在体实验中对心脏的影响。方法健康SD雄性大鼠,随机分为7组:正常对照组、假手术组、IR组、IR+DMSO组、IR+Cym5541(S1P3受体激动剂)组、IR+Cay10444(S1P3受体阻断剂)组、IR+Cay10444/Jte-013(S1P2/3受体阻断剂)组。制作大鼠缺血再灌注模型,并记录心功能、心肌梗死面积、死亡率。结果给予S1PR3抑制剂组和S1PR2/3抑制剂组与IR组相比在心肌缺血再灌过程中,心率下降(P0.05),左室舒张末期压力(LVEDP)上升(P0.05),心肌梗死面积增大(55.7%:28.8%,51.6%:28.8%),给予S1PR3激动剂组心肌梗死面积显著减小(18.6%:28.8%)。给予S1P2/3抑制剂组死亡率明显高于IR组(53%:22%,P0.05)。结论 S1P2和S1P3受体对缺血再灌注心肌起保护作用,抑制S1P2/3受体参与了IR后心源性猝死(SCD)。     

利用唾液斑DNA上12S rRNA基因片段进行动物种属鉴定

目的通过检测唾液斑DNA确定案件所涉及动物的种属。方法通过提取动物唾液斑DNA,扩增其线粒体DNA上的12S rRNA基因片段,并进行DNA测序,测序结果在GenBank上进行BLAST搜索,再利用DNA MAN软件进行同源性分析。结果从唾液斑中成功地提取到了基因组总DNA,并成功扩增出了用于动物种属鉴定的12SrRNA基因片段。结论所报道的方法能用于动物种属鉴定。     

美国纠纷解决的体制机制及其借鉴意义

美国纠纷解决体制机制具有几个突出特点:机构设置较健全;行政机关是解决纠纷的重要渠道;调解是解决纠纷的主要方式;程序规范工作人员廉洁自律。我们应当借鉴美国经验,完善纠纷解决体制机制,健全我国的行政调解,加强行政程序制度建设,完善公务员、事业单位人事争议解决的法律规定、体制和机制。     

U.S.-VIETNAM RELATIONS IN THE TRUMP ERA

This paper seeks to examine U.S.-Vietnam relations under the Trump administration. It will concentrate on the political, economic and security dimensions of the relationship. It will demonstrate that the Trump administration's policy towards Vietnam has many elements of Obama's policy towards Vietnam. Though President Trump has focused on the trade deficit with Vietnam, the Trump administration has worked closely with the Vietnamese government to intensify the partnership with Vietnam. It should be noted that in the context of China's growing assertiveness in the South China Sea, Hanoi and Washington see that it is in their mutual interests to advance their security cooperation. The last two years have witnessed the increasing partnership between Vietnam and the United States.     

奥巴马政府国家情报战略新指针——解读美国《2009年国家情报战略》

关国《2009年国家情报战略》是奥巴马政府首度公布的具有指导性意义的情报战略。该份“情报”分析了关国所面临的战略环境，并对未来四年美国情报界的工作目标和实现手段做了全局性的规划与安排。“情报”的内容虽然不多，但却反映了美国国家安全的深度考量，尤其是“情报”中将中国视为美国的“利益挑战者”，在一定程度上反映了美国政府对华政策的现状与深层考虑。因此，该份“情报”仍值得中国给予适当关注。     

对新时代中美关系的战略思考

奥巴马成功访华使中美关系得以全面提升，中关关系站上了“新的历史起点”。对中关关系应准确看待、避免三种误区，即过高估计中关关系的全球重要性与影响力；过高估计中国在中关关系格局中影响力的增强；避免将错综复杂与不断发展的中关关系“片面化”、“绝对化”与“静止化”。中美关系仍然存在诸多现实问题与未来挑战，处理中美关系不仅需要双方充分把握时代机遇，更需要彼此慎重应对各种挑战。美国政府只有真正“解放思想”、彻底抛弃“冷战思维”、端正对华心态，中关关系才能不断“与时俱进”，从而持久造福于两国人民与世界。     

Die Erneuerung des Strafverfahrens ohne vorheriges Erkenntnis des EGMR

Eine vor kurzem ergangene Entscheidung des OGH (1. 8. 2007, 13 Os 135/06m) erm?glicht einen gegenüber der bisherigen Praxis stark erweiterten Grundrechtsschutz im Strafverfahren. Der OGH bejahte mit Blick auf Art 13 MRK und die ?nderung der Rsp des EGMR dazu seine Kompetenz zur Erneuerung des Strafverfahrens auch dann, wenn in der Sache noch kein verurteilendes Erkenntnis des EGMR vorliegt. Der folgende Beitrag versucht, das ma?gebliche inhaltliche Argument wie auch die methodische Vorgangsweise des OGH n?her zu beleuchten und einen Ausblick auf die m?gliche Handhabung in der Praxis zu geben.     

伪狂犬病病毒gG-gD基因片段的扩增及克隆和序列测定

以伪狂犬病病毒(PRV)HB-9304株的基因组为模板,利用聚合酶链反应(PCR)对其gG-gD基因片段进行扩增,获得了预定大小的片段,将这一片段克隆到质粒载体pPK中.对重组质粒pPKGD进行限制性内切酶分析、PCR鉴定和克隆片段的序列测定,证实了克隆片段的可靠性.