Diverse morphological lesions and serious arrhythmias with hemodynamic insults occur in the early myocardial contusion due to blunt impact in dogs

To investigate the morphology and hemodynamics of the early myocardial contusion, an animal model of cardiac contusion was established by impact to the precordial region at sternum at velocity of 10.0m/s with a mechanical elastic-cord propelled impactor in 19 dogs. The electrocardiogram and both the left and right intra-ventricular pressures were recorded continuously throughout the experiment. Histological and immunohistochemical examinations of myoglobin, creatine kinase-MB and fibrinogen were conducted. At the moment of impact, abrupt over-pressures within the left and right ventricles occurred with concomitant serious arrhythmias followed by variety of cardiac conduction disorders and depressed left and right ventricular systolic pressures during the observation times. Histologically, lesions of myocardial contusions were identified at subepicardial, myocardial or subendocardial layer as interstitial hemorrhage, disruption or coagulative necrosis as well as contraction band necrosis of the muscle fibers, which might be categorized into the hemorrhagic, necrotized and mixed forms. The three forms of lesions were found to exist independently, or co-existed in a heart. However, severity of the lesions varied greatly with different parts even within a heart. Intravascular thromboses were occasionally discovered post-impact. Immunohistochemically, loss of myoglobin and creatine kinase-MB from cardiac cells, and accumulation of fibrinogen at the cell membranes were detected 5min post-impact. The intracellular accumulation of fibrinogen increased with extension of post-impact intervals. Our results indicate that diverse morphological lesions concomitant with hemodynamic compromise and serious, even fatal arrhythmias occur in the early myocardial contusion, and intravascular thromboses are occasionally produced, suggesting that traumatic myocardial ischemic lesion may be induced due to blunt impact to the precordial region.     

Environmental Protection Trumps GDP Growth

<正>New criteria introduced for assessing government officials based on environmental efforts Although winter is fast fading into spring in north China’s Hebei Province,the almost daily curtains of smog that cover the region are a great cause of concern for Jiang Ting,a 30-year-old new mom.Apart from inconveniences to life and work brought by the severe air pollution,Jiang worries about the harm to her health,and especially to that of her vulnerable child.     

少年司法分立论

少年司法的分立从刑事古典学派、实证学派的思想中汲取理论准备,同时,关爱和回归的内在价值显现出少年司法独特的理论基石。基于立法推动和现实的障碍,目前的少年司法系统仍然存在着诸多的问题,但唯有分立的少年司法存在,基于此的独特理念、程序和非刑罚措施等诸多方面能够满足扶助非行少年重返社会的责任。     

屌丝及其社会阶层固化的原因分析

作为一个流行语,"屌丝"体现了特定青年群体的真实存在状态,该群体的典型特征是"矬穷丑",其在物质积累、社会地位、爱情婚姻及向上流动等方面都遭遇了较大阻力,属于较为低下的社会阶层。"逆袭"是屌丝突破阶层固化限制、实现身份翻转、进入社会上升通道的过程。社会转型的时代背景、不公平的教育资源分配、屌丝群体自身的价值观念与生活方式等因素的交互作用,共同合力于这一过程,造成屌丝逆袭的困境。     

NEW BANK ON THE BLOCK

<正>BRICS New Development Bank operates as a multilateral development financial institution to help emerging economies Rooftops all over the Shanghai Lingang Industrial Area are now serving a more productive purpose than simply covering factories and warehouses.In August,the vast area in southeast Shanghai had solar panels installed on all roofs,creating the capacity to     

An Early Start

正Chinese parents'high demand for early education drives a growing industryLiu Ying can hardly remember the last time she had a free weekend.As the person in charge of business development at MAMALOOK,a Beijing-based company providing English language training to kids,the29-year-old saw her workload increase drastically over the past few months together with the rapid expansion of her business.     

高职学生廉洁教育研究——以北京市高职院校为例

高等职业教育作为高等教育的重要组成部分,强调以就业为导向,理论和实践训练并重.近年来高职教育发展迅速,一大批高职学生迈入社会,成为社会主义生产、建设、管理和服务第一线的高技能人才.高职学生是否具备廉洁意识对于当前市场经济的健康发展、社会主义和谐社会的构建有着直接影响.因此,对高职学生应积极开展富有实效廉洁教育,这就要求教育者把握高职教育和高职学生的特殊性,并积极创新教育方式和教育内容.     

“邻避风险链”:邻避危机演化的一个风险解释框架

基于制度主义的风险管控实践严重忽视了弱势群体的风险感知,造成官僚系统与利益公众风险定义的分歧,由此引发一系列邻避抗议争端。论文以"阿苏卫垃圾厂抗议事件(1994—2014)"为蓝本,提出了"实在风险—感知风险—社会稳定风险"的邻避风险链系统,对其概念、特征、决定因素和生成机制进行了初步的理论梳理,建构了"邻避风险链评估指标体系"。这一风险"连续统"有助于弥合制度主义与文化主义的风险分歧,为从源头上对重大工程项目进行风险评估、管控和阻断提供理论前提,为邻避危机演化机理研究提供了新的解释框架。论文采用了验证性的实例分析,未来,还需从数理实证层面对邻避风险链的构成和有效性进行验证。     

DNA遗传标记STR基因座的高分辨电泳分型

应用聚丙烯酰胺凝胶水平不连续电泳和自动激光荧光DNA分析等两种高分辨电泳技术，比较和评估它们对4个STR基因座分型的准确性。结果表明，两者对HUMTH01、HUMVWA和HUM-FES三个基因座的分型结果完全一致。对HUMTHF13A基因座分型，聚丙烯酰胺凝胶水平不连续电泳获得的结果与自动激光荧光DNA分析不具可比性。     

论和谐社会视野下行政管理与社会自我管理的关系

构建社会主义和谐社会是一项复杂的系统工程,其中一个重要的方面就是处理好行政管理与社会自我管理的关系,打造社会管理新格局。随着社会治理模式的转变,行政管理与社会自我管理关系也日益凸显。但是目前我们在很大程度上还沿用着过去以行政管理为主导的社会管理体制,这实际上同经济社会发展是不相适应的,如何寻求二者之间的良性互动对于构建和谐社会具有重要的现实意义。那么政府在处理二者之间的关系上应该具有何种应然理念,选择何种模式是重要的主导因素。