关于我国行政区划改革的探讨

改革开放以来,我国的生产力得到迅速的发展,作为生产关系的旧的行政区划体制,逐渐暴露出其弊端,严重束缚了生产力的发展。因此,通过行政区划改革,建立一套新的与我国社会现状相适应的行政区划体制,显得尤为迫切。     

乙肝Ⅲ号合近红外信息辐照治疗乙型肝炎肝纤维化的临床研究

目的：观察乙肝Ⅲ号合近红外信息辐照治疗乙型肝炎肝纤维化的疗效。方法：选择乙型肝炎肝纤维化住院病人234例，分为乙肝Ⅲ号治疗组(76例)、近红外信息辐照组(73例)和联合治疗组(85例)。在基础治疗(包括甘利欣，复方丹参液等)上采用单纯的中药外敷、肝病治疗仪近红外信息辐照以及两联合治疗等三种不同方法，观察各组患临床症状、体征、肝功能以及相关指标如PGA、肝纤三项(透明质酸(HA)、层黏蛋白(LN)、CⅣ型胶原(CⅣ))、肝血流的变化。结果：3组皆能改善临床症状，但以联合治疗组为；3组肝功能复常比较，差异有显性，但组间比较，差异无显性；在改善PGA、肝纤三项和肝血流量方面，联合治疗组优于乙肝Ⅲ号治疗组和近红外信息辐照组。结论：乙肝Ⅲ号合近红外信息辐照对乙型肝炎肝纤维化有一定的治疗作用，且较单一方法疗效明显。     

An economic assessment of the social costs of highway salting and the efficiency of substituting a new deicing material

The use of salt for deicing roads results in costs estimated at more than $800 per ton—including the costs of repair and maintenance of roads and bridges, vehicle corrosion costs, and loss of aesthetic value through roadside tree damage. Additionally, there are probable health costs related to elevated sodium levels in drinking water. The new Surface Transportation Act of 1991 appears to replace the previous federal funding policy that was biased against the use of calcium magnesium acetate (CMA) with a new subsidy for its purchase that may lead to inefficient overuse.