中国古代地缘政治空间结构过程及模式研究

中国古代地缘政治的发展过程具有一种长周期内的重复态势。地理环境是空间结构存在的大尺度控制和自然基础。空间结构的动态过程包括秦以前结构的发生、发展和演变,秦以后结构的融合、扩散和模式化,反映中国古代地理政治化和政治地理化的两个阶段。结构模式的静态分析,初步揭示了结构的一些重要功能特性,主要有强大的整体功能,独特的边缘效应和通过圈层同构,结构复制所展现出来的稳定性的复杂表现。对中国古代地缘政治空间结构的分析,是大尺度的整体轮廓研究,随着空间结构研究尺度的细化,可进一步对中国古代政治过程的诸多特性做出结构主义的揭示,从而推动中国古代政治历史研究的深化。     

Clay‐shoveler's fracture: an uncommon diagnosis in palaeopathology

An archaeological case of clay‐shoveler's fracture was observed in an adult male exhumed from a Roman necropolis dated to the 1st–3rd century AD and located in the city of Barcelona, Spain. Clay‐shoveler's fracture is a breakage of a lower cervical or upper thoracic spinous process as a result of mechanical stress. Different mechanisms have been related to this injury, generally in labour‐related contexts. This paper reviews the literature concerning this uncommon finding, focusing especially on its mechanism and on activity‐related lesions. Copyright © 2006 John Wiley & Sons, Ltd.     

考古学次生堆积的研究与探索

一、问题的提出 随着当代考古学的目标从器物描述扩展到对人类行为的信息提炼,对考古遗址中文化堆积改造和遗址形成过程的了解,便成为田野工作的一项重要方面。虽然,对过去社会文化和人类活动的了解取决于考古学家对遗址的仔细发掘和采样,但是发掘和采样在多大程度上反映了历史的真实面貌,则是一个很大的未知数。因为,考古遗址从形成开始,不但受到人类活动的改造,而且在使用时和废弃后的漫长岁月里,还会被堆积后的自然和人类动力破坏得面目全非。所以,如果要科学地认识考古学文化,仔细分辨人类和自然对考古遗址的改造和扰动就必…     

老龄人口旅游空间行为特征及其对旅游业发展的启示

老龄化人口发展趋势在我国东部地区大中城市日益明显。本文试从人口老龄化角度来探讨老龄人口对旅游业经济收益贡献率的影响,分析旅游企业如何适应老龄化人口发展趋势,及时转变经营观念,调整经营战略,取得更好的旅游收益。     

旅游活动对景区视觉环境的影响——以嵩山风景区为例

传统的综合评价指数模型在对定量化的客观事物进行评价时比较准确,但在评价景区视觉环境时由于存在着主观影响因素,这时传统模型就显出了较大的局限性。利用韦伯-费希纳定律改进后的新综合评价模型则显示出了优越性。利用层次分析法确定各指标的权重,向专家、旅游专业学生、游客发放调查问卷获得评分,采用新综合评价模型,以嵩山风景区为例,针对该区开展旅游活动后景区视觉环境受到的消极影响进行了研究评价。     

基于电阻率成像法的莫高108窟墙体内水盐运移过程分析

非均质的砂砾石层是莫高窟壁画的主要墙体,但砂砾石层的非均质性如何在水盐运移过程中发挥作用却还不清楚。为此,通过在108窟西壁面上1 m×1 m和2 m×2 m范围的三维高密度电阻率成像监测,发现在这些区域上,墙体电阻率的空间分布都是非均匀的,低阻值区域在空间位置、大小和形状上都会随时间而变化。这明确说明在构成墙体的非均质砂砾石层内存在着重要的水分饱和与非饱和过程(再分配过程),正是这一不断重复的饱和与非饱和过程促进了墙体内水分的运移和盐分在一些特定区域的聚集。研究成果对全面认识莫高窟墙体内的水盐运移机理,减轻和防治壁画盐害都具有重要意义。     

古墨的制作工艺及保存问题的探讨

采用近代分析方法研究墨坯锤打过程中的物理化学机理,结合古墨的结构形貌分析,对其保存问题进行初步探讨。     

The role of policy narrators during crisis: A micro-level analysis of the sourcing,synthesizing, and sharing of policy narratives in rural Texas

How do policymakers respond to crises? The Narrative Policy Framework (NPF) answers this question by focusing on the contest over policy narratives. This paper focuses on the individuals constructing those policy narratives, conceptualizing them as policy narrators. Using a case study approach, we analyze seven counties located in a major oil and gas formation in Texas, which in early 2020 faced both an oil bust and the onset of COVID-19. We explore four sets of propositions about how policy narrators source, synthesize, and share their policy narratives. We find that while their narratives vary, the structure of those narratives is similar; their backgrounds shape how they source narratives, and they tailor their levels of narrative breach to the action (or inaction) they hope for. They avoid casting other local actors as villains, place their audience as the hero, and situate themselves as either supporting or a member of that audience, stressing their common ties. From these findings, we put forward a working definition of policy narrators, identify how they fit into the NPF, and discuss how they relate to other types of policy actors, including policy entrepreneurs.