83例道路交通事故死亡案例法医流行病学调查

目的分析道路交通事故死亡案例特点,为预防事故的发生提供可靠消息和参考数据。方法将83例交通事故死亡的案例资料,按照死者性别、年龄、死亡原因、事故发生时间及地点、事故车辆类型等相关参数,进行法医流行病学分析。结果男性死者明显多于女性死者;死者年龄多见于30～60岁;案发时间以12～14时、18～20时最多,以秋、冬季节较多;死者主要交通行为方式分别为驾乘摩托车占39.5%,步行占23.6%,骑自行车占13.1%;肇事车辆主要为小轿车、货车、摩托车,分别占27.6%、26.2%、25.0%;案发地点以主干公路为主;死亡原因83.1%为颅脑损伤死亡。结论有关部门应加强城乡道路建设,加强机动车管理,降低交通事故死亡率。     

Histopathology mapping of biochemical changes in myocardial infarction by Fourier transform infrared spectral imaging

Fourier transform infrared (FTIR) imaging and microspectroscopy have been extensively applied in the identification and investigation of both healthy and diseased tissues. FTIR imaging can be used to determine the biodistribution of several molecules of interest (carbohydrates, lipids, proteins) for tissue analysis, without the need for prior staining of these tissues. Molecular structure data, such as protein secondary structure and collagen triple helix exhibits, can also be obtained from the same analysis. Thus, several histopathological lesions, for example myocardial infarction, can be identified from FTIR-analyzed tissue images, the latter which can allow for more accurate discrimination between healthy tissues and pathological lesions. Accordingly, we propose FTIR imaging as a new tool integrating both molecular and histopathological assessment to investigate the degree of pathological changes in tissues. In this study, myocardial infarction is presented as an illustrative example of the wide potential of FTIR imaging for biomedical applications.     

基于外贸视角的经济增长方式转型——以长江三角洲地区为例

中国发达地区传统的经济增长方式转型是牵引中国经济持续发展的主要动力。从对外贸易的角度审视,尽管长江三角洲地区外贸总量快速增长,但加工贸易增值系数和经济效益不高,在全球产业链中处于低端。以往依靠税收优惠和稀缺土地资源进行的招商引资,在带动地区经济规模的扩张和外贸粗放增长的同时,也产生了成本上升和资源无法支撑外贸继续发展的副作用。频繁遭遇的各种贸易壁垒,则从国外市场的需求和生产技术国际标准方面,构成了对长三角地区外贸发展模式的倒逼机制。增强自主技术创新的能力,积极探索引资方式的创新,稳步推进“走出去”的多元化战略,建设和完善高效应对贸易摩擦的机制,才能实现经济持续、稳健、快速的发展。