我国体育文化空间差异及其区划研究

以地理视角观察体育文化,对我国体育文化与地理环境的关系进行探讨。从不同区域的气候条件、地势和地形条件、水域条件等自然地理环境因素和人体体格、文化背景与民族传统、区域经济发展水平等人文地理环境因素的差异上探讨了体育文化与地理环境的关系。采用层次聚类分析中的Q型聚类方法,构建指标体系,将我国体育文化区划成3个一级区,8个二级区。最后对各体育文化区分别进行评述。     

气密展储空间内温湿度稳定性分析——以秦始皇帝陵博物院内气密展柜为例

温湿度是影响文物保存的重要因素。为了研究气密展储空间内温湿度的变化情况,为文物的长期"稳定"展储奠定理论与实践基础,对秦始皇帝陵博物院内一台气密展柜7个月的温湿度检测数据进行分析。结果表明:展柜内温度随外界温度波动而波动,湿度稳定性取决于展柜气密性与展柜内外相对湿度差值,良好的气密性可以有效减缓外部环境湿度波动对展柜内湿度的干扰;气密空间内湿度短期内波动主要受环境温度影响。     

PMTA对青铜表面保护作用

研究了1-苯基-5-巯基四氮唑(PMTA)对青铜的缓蚀性能。经盐水浸泡试验和电化学测试证明,用 PMTA 处理过的青铜片抗 Cl~-腐蚀性能较好。电子能谱分析(AES 和 XPS)表明 PMTA 与青铜合金元素配位较大,因此推测 Cu_2O、SnO_2、PbO 等相互作用而形成复杂的络合物膜起了保护作用。     

城市内部居住迁移对居民自评健康的影响研究——以北京市为例

居住迁移对居民健康有重要影响.然而,一方面,目前对居住迁移的健康效应的研究仍然以国外研究为主,且偏重负面影响;另一方面,目前国内对居住迁移健康效应的研究大多基于截面数据,研究结论不够稳健.为此,本文基于北京市的一项追踪调查,分析居住迁移前后不同居民自评健康状况的变化,并利用定序逻辑斯特回归模型分析居住环境变化对居民自评...     

Aspartic acid racemization variability in ancient human remains: implications in the prediction of ancient DNA recovery

The extent of racemization of aspartic acid (Asp) – expressed as d/l ratio – has been used as a marker of biomolecular degradation in ancient remains. However, Asp racemization rate is highly variable, and depends on biochemical and geochemical factors. In this paper we aim to determine to which extent the fraction analyzed and the kind of sample used may influence the d/l Asp ratios. Other factors, such as burial site and sample preservation conditions, are also considered.     

水硬石灰在花山岩画加固保护中的应用研究

水硬石灰兼具石灰和水泥的优点,低收缩、耐盐、适中的抗压和抗折强度、水溶盐含量低,同时与传统的砖石建筑兼容性好,是一种天然、无污染、耐老化的无机材料。本工作针对花山岩画的开裂特点制订出相应的力学参数要求,配制出两种不同的水硬石灰砂浆,并对这两种砂浆的力学性能进行了分析。同时探讨了不同养护条件对水硬石灰砂浆拉拔强度的影响。现场试验结果说明,填补粘结材料可以提供一定的粘结强度,并且具有使用方便,污染小的特点,可用于花山岩画开裂岩体应急保护加固处理。     

蔡其矫诗歌意境的创造和人格涵养

蔡其矫诗歌以传统为骨子,他尊重传统的诗歌创作原理,注重开拓诗的意境,努力寻找景与情的契合,形成其诗歌意境优美灵动、梦幻空灵、苍凉悲壮神奇的三大特色。这些特色又与其人格息息相关,但因其时代的变迁,人生经验和艺术修养的积淀,诗的意境表现呈现阶段性跳跃。     

Ancient DNA in archaeological wheat grains: preservation conditions and the study of pre-Hispanic agriculture on the island of Gran Canaria (Spain)

The recovery of ancient DNA from archaeological wheat samples under different preservation conditions was assessed using a number of genetic markers. It was possible to amplify nuclear DNA from desiccated grains but not from charred. The desiccated grain was from a pre-Hispanic grain silo in Gran Canaria and showed excellent DNA preservation, enabling the amplification of the ribosomal DNA markers IGS and ITS, the upstream region of the HMW-glutenin locus and single-locus nuclear microsatellites. Our results demonstrated the presence of both durum and bread wheat in an assemblage of naked grain. We were also able to identify different genotypes in durum wheat and compare these with extant landraces, providing insights into the agrarian practices of the ancient Canarians and the origin of their crops.     

大高玄殿建筑群变迁考略

大高玄殿始建于明代嘉靖二十一年,殿内供三清等道教诸神,是明世宗建造用于祈祷斋醮的一座皇家道观。清代沿用,仍作为皇帝拈香祈拜之所。乾隆朝,曾对大高玄殿建筑进行局部调整,但宫殿主体格局未变,一直保持至清代末年。民国以后,为了便利交通,拆除了山门外的牌楼和音乐亭,其他宫殿保存至今。这些宫殿建筑类型齐全,大木结构各具特色,反映了明代中期建筑营造的技艺水平;宫殿的平面布局以及遗存的建筑彩画、石质雕刻等具有鲜明的皇家道观特点。这处曾作为皇家宗教活动重要场所的明清宫殿建筑群,无论在宫廷建筑史还是宗教史领域都有较高的研究价值。     

Highlighting the Need and Potential for Use of Interdisciplinary Science in Adaptive Environmental Management: The Case of Endangered Upland Swamps in the Blue Mountains,NSW, Australia

The Blue Mountains region of New South Wales, including the World Heritage listed Blue Mountains National Park, is arguably one of Australia's most highly valued and iconic wilderness areas. Common to this region are upland swamps (formally ‘temperate highland peat swamps on sandstone’), which play a vital hydrological role at the headwaters of the river catchments, as well as providing the habitat for an array of flora and fauna species. This paper involves an interdisciplinary examination into the need and potential for adaptive management in the Blue Mountains. It uses geomorphic (physical) knowledge of swamp condition and social data about the volunteers who rehabilitate them. Research involved using the River Styles river condition framework across 47 swamps and questionnaires and interviews with local rehabilitation volunteers. It is proposed that there is a need and a potential to combine geomorphic understanding with further engagement of community volunteers in order to enable an interdisciplinary approach to adaptive management. Such an approach could result in the effective environmental management of upland swamps in the Blue Mountains.