货车后下部防护装置不同截面横梁在碰撞中的吸能性研究

目的 高速公路上轿车追尾大型车辆的事故时有发生,货车后下部防护装置横梁（以下简称横梁）缓冲吸能特性的好坏对减少后车人员伤亡有着重要的现实意义.方法 通过利用显式非线性有限元理论对四种常见典型截面形状的后横梁建立碰撞仿真模型,在《汽车和挂车后下部防护要求》（GB11567.2-2001）标准要求的碰撞试验条件下,进行碰撞仿真研究.结果 应用此法在同等边界条件下,对常见的四种横截面横梁建立缓冲吸能性的科学评价依据.结论 研究表明,在同等条件下,圆形横截面横梁的缓冲吸能性能最好.     

Cardiac Changes Due to Electronic Control Devices? A Computer‐Based Analysis of Electrical Effects at the Human Heart Caused by an ECD Pulse Applied to the Body's Exterior

Electronic control devices (ECDs) deliver high‐voltage, low‐current energy pulses temporarily paralyzing a person. For the ECD–human interaction, we have developed a computer model using the SEMCAD program within which to simulate the electrical effects throughout the body resulting from the imposition of an ECD pulse at a particular point on the body surface. Our human body models were based on cross‐sectional MRIs and CT scans, with the dielectric properties of the various tissues assigned based on previously published values. We simulated the application of a single ECD pulse and calculated the resulting electric field strength and current and charge densities at different body locations. The results were compared with corresponding values obtained by other researchers in similar simulations. Furthermore, we simulated an application of a pulse of 20‐millisecond duration equal to the European household current of 50 Hz and to the ventricular fibrillation threshold. The resulting current level indicated at the heart muscle was 1/5 the level considered the threshold for triggering ventricular fibrillation.     

Acting Like It Matters: A Scoping Review of Simulation in Child Welfare Training

Simulation-based training is often used to prepare health practitioners and is increasingly employed to train child welfare workers. This scoping review systematically searched the published and grey literature for studies that evaluated training for child welfare practitioners and used simulation methods that included standardized actors. Three studies met inclusion criteria, all documenting improvement in participants' use of specific skills. Other outcomes were mixed, possibly reflecting the heterogeneity of samples, study methods, measures, training of actors, theoretical frameworks, and content areas. Though results were mostly positive, the small number of studies indicates a substantial need for further research.     

公安院校微型警务英语口语语料库的构建与应用

微型警务英语口语语料库的构建对公安院校警务英语教学研究、我国行业英语语料库的建设以及培养懂外语的复合型人才,服务于涉外警务工作具有重要的现实意义。从整体设计、语料搜集、分类标注三个步骤加强微型警务英语口语语料库的构建,并根据微型警务英语口语语料库的特点和外语教学中的现实情况,尝试将其应用于公安院校的警务英语教学是一条可行的途径。     

Decentralization in Post-Apartheid South Africa

Abstract

Decentralization in South Africa was entrenched in the new democratic constitution of 1996 and charged local government with bringing basic and other services to the population. Our in-depth empirical study of 38 municipalities across South Africa indicates that the experiment with decentralization has largely failed to achieve its main aims—democratizing local government and delivering adequate basic services to all communities. In order to provide some answers to the question as to why this failure occurred, we focus attention on the legislative over-burdening of local government and its concurrent lack of institutional capacity to actually turn legal obligation and decentralization principles into practice as two of the main and related causes for this failure. While the South African constitution gave clear mandates to local government, the issue of adequate institutional capacity for municipal government was largely overlooked or ignored altogether.     

警察类职业院校思政课课程教学设计探索

在时代变迁的背景下,学生价值观念多元化,就业压力加大等现实的问题给警察类职业院校的思政课教育教学带来了新的挑战。围绕警察类职业院校思政课课程教学设计进行探索,尝试实现化整为零的模式,实现课程内容和人才培养目标与培养质量全方位对接。     

自贸区与政治一体化——中日韩自贸区的战略设计及实施

中日韩第四次首脑峰会使东北亚自贸区的建设提上了日程,但是敏感而复杂的政治安全形势对自贸区的发展构成了现实的挑战。基于功能主义的现有地区合作框架并不能解决该地区深化发展所要面对的问题,中日韩三国需要构建一种基于相互承认逻辑的新地区发展战略。     

POSTAL 2 plays in US court - Schwarzenegger v. Entertainment Merchants Association

In an unprecedented legal development, the case of violence in video games has now reached the highest American court. The US Supreme Court is set to decide whether states can restrict minors from buying violent video games in the case of Schwarzenegger v. Entertainment Merchants Association. The decision could have serious implications on the future of First Amendment rights and children’s ’welfare. To resolve Schwarzenegger, the Justices will need to decide how much First Amendment protection should be extended to violent video games and whether minors have a greater constitutional right to violence than they do to obscenity.     

促进民主的公共政策：政策设计与社会建构理论述评

政策设计理论主要研究公共政策的实质性内容,谋求政策质量的改善。美国学者施奈德和英格兰姆将社会建构思想引入政策设计的研究中。通过分析在政策目标群体或知识的社会建构主导下,各种决策背景中的政策设计对于民主的促进或阻碍影响,目的在于倡导一种能够整合问题解决、民主价值、公民精神和社会正义等多种价值的政策设计规划,推动社会民主治理的发展。     

对医学生职业生涯规划教育的几点思考

在高校中开展大学生职业生涯规划教育已成为教育部的明确要求。而医学生因专业性较强,在开展职业生涯规划教育方面也存在着一定的独特性。分析医学生职业生涯规划教育的现状,探讨针对医学生职业生涯规划教育的特点,有助于提高医学生职业生涯规划能力。