An autopsy case of sudden death due to acute gastric dilatation without rupture

We report the first autopsy case of fatal gastric dilatation without rupture. A 31-year-old woman who lived alone was found dead in her living room. Despite being very thin, she showed marked abdominal distention. Autopsy and histological findings revealed that a severely distended stomach, of which walls notably thin and displayed transmural necrosis, occupied the entire abdominal cavity. Severe congestion was observed in the intestine and cecum. Theses findings suggest that bulimia nervosa together with anorexia nervosa resulted in rapid dilation of the stomach. We conclude that the cause of death was acute circulatory failure from hypovolemic shock that occurred following compression of the inferior vena cava and superior mesenteric vein, and by loss of circulatory volume to the third space.     

肥大细胞类胰蛋白酶的免疫组化染色观察

目的　观察过敏性休克死亡者咽喉、肺、小肠组织肥大细胞类胰蛋白酶 (MCT) ,探讨过敏性休克死亡法医鉴定的形态学依据。方法　交通事故致严重颅脑损伤死亡者 10例 (对照组 )、明确诊断为过敏性休克死亡者 15例(实验A组 )和羊水栓塞死亡者 8例 (实验B组 )的尸体 ,分别取其咽喉部、肺及小肠组织 ,石蜡切片 ,HE染色及用免疫组化超敏SP法进行MCT染色。结果　实验A组的咽喉部组织充血、水肿 ,咽喉部粘膜下层MCT增多 (MCT颗粒计数为 48 2 3 ) ;实验B组的咽喉部粘膜下层MCT增多 (MCT颗粒计数为 42 72 )。肺间质尤其是小支气管壁及小血管壁上MCT增多 (MCT颗粒计数分别为 46 98和 43 5 0 ) ,小肠粘膜层MCT增多 (MCT颗粒计数分别为 48 2 3和 42 72 )。对照组的咽喉部、肺和小肠MCT颗粒计数较少 ,分别为 7 79、 12 94和 2 0 2 5。实验A组与对照组相比 ,两组具有显著性差异 (P <0 0 1) ;实验A、B组相比 ,两组无显著性差异 (P >0 0 1)。结论　过敏性休克及羊水栓塞死亡的尸体 ,其咽喉部组织、肺组织及胃肠道组织MCT增多。     

一体解决微距摄影问题的实验研究

研究思路:对震动变抑震为同震,对配光变光动为物动,对调焦变像距调焦为物距精调。解决方案:近摄避震器。技术特 色:零振差消震,自适应配光,系统互操作。     

The Panglossian politics of the geoclique

ABSTRACT

Solar radiation management (SRM) – a form of geoengineering – creates a risk of ‘termination shock’. If SRM was to be stopped abruptly then temperatures could rise very rapidly with catastrophic impacts. Two prominent geoengineering researchers have recently argued that the risk of termination shock could be minimised through the adoption of ‘relatively simple’ policies. This paper shows their arguments to be premised on heroically optimistic assumptions about the prospects for global cooperation and sustained trust in an SRM deployment scenario. The paper argues that worst-case scenarios are the right place to start in thinking about the governance of SRM.     

日本对外贸易条件及其波动性检验

本文研究了1960～2009年日本对外贸易条件的发展过程,并将其分为三个主要阶段,同时结合日本经济发展的大致轨迹分析了对外贸易条件变动的原因。并进一步探讨了食品、纺织、化学、金属等6类主要产品部门的贸易条件及其发展过程。通过对贸易条件方程式进行分解,将对外贸易条件波动分为绝对贸易条件效应和相对贸易条件效应,并利用方差分解的方法分析了日本对外贸易条件波动的原因。结合日本对外贸易条件变动的历程和我国的现实,提出了加强科技创新、提升产品附加值,促进产业结构优化和主导产业升级,建立完善对外贸易预警机制和稳定大宗商品供给和价格波动等建议。     

禽分枝杆菌副结核亚种保护性抗原的研究进展

为了给副结核病新型疫苗研究中抗原的选择提供参考,综述了超氧化物歧化酶和巯基过氧化物酶等酶类、热休克蛋白、抗原85复合物及其他一些抗原在激发实验动物细胞和体液免疫中所发挥的作用,同时总结了在实际应用中可供借鉴的经验。     

多项免疫学指标在青霉素过敏死亡鉴定中的价值

目的考察类胰蛋白酶、类糜蛋白酶、IL-4和IL-10在青霉素过敏死亡豚鼠死后0~48h的水平或表达。方法采用青霉噻唑蛋白致敏和激发,豚鼠死后0~48 h提取血液或组织,采用免疫组织化学法和ELISA法分别检测类胰蛋白酶与类糜蛋白酶组织表达和IL-4、IL-10水平。结果与对照组相比较,实验组肺和气管中类胰蛋白酶和类糜蛋白酶的表达增强,血清、肺、气管中的IL-4、IL-10水平增高(P0.05)。结论类胰蛋白酶、类糜蛋白酶、IL-4和IL-10在青霉素过敏死亡鉴定中具有重要价值。     

福建省技术进步对经济增长的影响机制分析

根据中国经济增长的实际情况,把技术进步分解为内在技术进步和外在技术进步两个方面。利用计量模型从短期和长期两个角度来分析内在技术进步、外在技术进步与经济增长三者之间的关系。基于福建省1987年至2009年的数据,对这三个变量进行协整关系分析、格兰杰因果关系分析和在VAR模型基础上的脉冲响应函数分析以及方差分解分析。实证分析结果显示：不论从长期看还是从短期看,福建省内在技术进步对经济增长的拉动作用比福建省外在技术进步要大。     

Time-related changes in cardiac ct images of rabbits died from four kinds of execution

Objective To explore the feasibility and appropriate parameters for estimating postmortem interval (PMI) through time-related CT imaging into dynamically monitoring the cardiac changes of rabbits died from four kinds of execution. Methods The experimental rabbits were executed with four disposals of air embolism, strangulation, drowning and hemorrhagic shock. The dead rabbits were observed of their hearts with CT scanning every 6 hours within 120h from the death moment, having the obtained time-different CT images and mean CT values examined. With the cardiac average CT values of rabbits died from discrepant execution, four relevant regression equations were established against the elapsing time (i.e. PMI). Results The CT images of post-death cardiac tissue of rabbits died from one of four executions did change regularly with the PMI elongating, showing consistent with the autopsy verification. The binomial regressive equations were established between the post-death cardiac average CT value and PMI from four executions, demonstrating statistically significant (P<0.05). Conclusion The postmortem cardiac CT imaging into PMI analysis, plus the relating regression equation, provides a new objective visual quantitative approach and reference for forensic medicine to infer the time of death. © 2021, Editorial Office of Forensic Science and Technology. All rights reserved.