天然材料在丝织品文物清洗保护中的应用综述

以古鉴今,为发掘古代传统清洗方法中的科学、合理成分,解决现代化学洗涤剂清洗丝织品文物产生的易损伤、易残留、污染大的问题;简要回顾了皂苷、淀粉等植物活性成分,胰子、油脂等动物提取物,草木灰、天然碱等矿物质以及微生物酶等天然材料在古代日常清洗和古书画清洗中的应用记载;并简单介绍了天然材料在清洗丝织品文物血迹、脂肪等有机污染物、微生物霉斑、矿物质类无机污染物上的应用进展。清洗效果评估说明,天然材料对丝织品文物的损伤小,适用于其清洗保护,是对丝织品文物清洗保护的一个重大进步。     

青海瞿昙寺壁画颜料的研究

通过对青海瞿昙寺画郎和建筑彩绘所用的22个绘画颜料样品的 x-射线衍射和同位素 x 荧光分析.共分析出20多种无机矿物颜料,此外.还有蓝钯、黄钯有机颜料。本文对这些颜料的分析结果进行丁综合论述.并与敦煌石窟、麦积山石窟、炳灵寺石窟等的彩绘颜料进行了研究。     

馆藏壁画保护理论探索与实践——以甘肃省博物馆藏武威天梯山石窟壁画的保护修复为例

馆藏壁画是具有重要历史、科学和艺术价值的博物馆藏品之一,大部分为来自考古发掘现场的墓葬壁画,其次为揭取搬迁的石窟壁画和殿堂壁画。因其制作材料(主要为泥质或石灰层地仗)脆弱,保存年代久远,各种病害多发且严重。已有研究结果表明,石窟壁画保护的难点是水—盐运移引起的壁画酥碱等病害问题,而当石窟壁画转移到博物馆作为藏品保存后,其赋存环境条件发生了根本变化,博物馆可控的、稳定的温度、湿度使其保护难度大大降低,保护现存实物原状与历史信息必然成为馆藏壁画保护的重要内容。本研究以甘肃省博物馆藏武威天梯山石窟壁画的保护修复为例,结合多年石窟壁画保护实践,探讨了馆藏石窟壁画保护理论与保护程序,重点阐述了壁画附加支撑体的去除、新支撑体的选择以及安装等方面的技术要点。提出通过举办专题展览,利用多媒体等高新技术,可以生动、形象、准确地反映和展示馆藏壁画的价值及保护修复过程,弥补传统陈列展览模式的不足。研究成果对同类文物的保护具有重要的借鉴价值。     

Citizen Participation,Process, and Transparency in Local Government: An Exploratory Study

This study had two purposes. First, it empirically examined the relationship between citizens' participation in administrative policymaking phases and their perception of government transparency. Second, it investigated how citizens' use of both offline and online participation channels and their involvement in different phases of policymaking (i.e., agenda setting, implementation, and evaluation) were related to their assessment of transparency in government. A 2009 survey of residents of Seoul, South Korea, was used to test the study hypotheses. Using two‐stage least squares estimate techniques, the study found that citizens involved in any citizen participation programs are more likely than those not involved to positively assess transparency in government. With regard to the relationship between participation channels and transparency, citizens who used offline participation channels were more likely than nonusers to perceive enhanced transparency in local government. However, their use of online participation channels had limited effect on perceptions of transparency. Finally, participation in two phases of the policy process, agenda setting and evaluation, positively affected citizens' assessment of transparency in government.     

Polis—the Portuguese programme on urban environment. A contribution to the discussion on European Urban Policy

In recent years the urban question in the European Union has been a matter of deep focus and intensive debate, contributing to the European Community environmental, spatial and sustainability policies approach, however not entirely reflected in the current version of the 6th European Environmental Action Programme. The POLIS programme, initiated in Portugal at the time of the last Portuguese Presidency of the European Union (January–June 2000), illustrates the Portuguese urban environmental policy approach in that period, in response to contemporary trends and priorities regarding the improvement of urban life and governance. This article describes the POLIS programme, its current status and how it meets current challenges. The expetience acquired so far with the POLIS programme may be useful in the broader context of the discussion of an European urban policy.     

全球电脑及外设生产网络的发展格局与特点剖析

在全球化的背景下全球生产网络日益成为微观竞争的主体,本文选取电脑及外设产业为考察点,得出由旗舰企业、高层级供应商和低层级供应商构成的全球电脑及外设生产网络及其发展格局。根据全球电脑及外设生产网络的发展,归纳出这一网络具有的特点包括：价值链被极度细分,网络中包含生产、研发和服务等各个领域;网络各层级呈现非对称性;存在着复杂的网络;以及全球分散与集中并存。由此提供了以旗舰企业为主导的电脑及外设行业全球生产转移的分析框架,以期对中国等处于产业升级的发展中国家进行产业结构优化和升级路径设计有所裨益。     

日伪统治下的日语教育

抗战全面爆发后,日本侵略先后占领了中国华北、华东、华中、华南等广大地区,并扶持傀儡政权。为配合其对华战争形势的需要,铲除沦陷区人民强烈的抗日意识,消灭中国人民的民族意识,日伪当局在沦陷区实施奴化教育,采取强制方式,大力推行日语教育,以在广大民众中培养亲日分子和亲日情愫。本以日伪统治下的华东华中华南地区为中心,探讨伪维新政府和汪伪国民政府实施日语教育的状况,揭示其奴化教育的实质。