运动、氧化应激与DNA损伤和修复   总被引：4，自引：0，他引：4  

常波 《沈阳体育学院学报》2004,23(6):756-757,788

在分子和基因水平上对运动时氧化应激损伤、氧化应激与DNA损伤以及DNA损伤和修复等几方面关系进行探讨,旨在探讨运动疲劳和损伤发生的分子生物学基础,并对未来运动医学研究的发展趋势进行展望。  相似文献   

Buddhist Wall Paintings at Nako Monastery,North India: Changing of the Technology Throughout Centuries     

Tatjana Bayerová 《文物保护研究》2018,63(3):171-188

The technical study of wall paintings from the Buddhist temple complex at Nako, Western Himalayas, was one of the basic preconditions required for designing an appropriate conservation strategy. The complex, composed of four temples from the eleventh–twelfth century, offered a unique possibility to carry out a comprehensive research of technology and painting materials used in early and later western Tibetan Buddhist wall paintings as well as a comparative assessment with murals from other sites in the Western Himalayas. The study was based on extensive fieldwork and an integrated analytical approach comprising a wide range of non-destructive and micro-destructive methods. Answering the question of the coevality of paintings in the smaller temples with other original murals, the precise characterisation of binding media, the detection of the yellow dye gamboge and natural minerals posnjakite and brochantite identified for the first time in Himalayan murals, the clarification of technology of metal decoration, and the making of raised elements are some of the most exciting results which emerged from the research.  相似文献   

Light-induced cracking and abrasion of inkjet prints: Damage and mitigation     

Andrea Venosa  Daniel Burge  Eugene Salesin 《文物保护研究》2016,61(1):94-100

This study is part of a larger research project at the Image Permanence Institute dedicated to digital print preservation issues – the Digital Print Preservation Portal (DP3). Previous DP3 studies determined that certain digital print types are prone to cracking and/or abrasion, and that factors such as low relative humidity, pollutants, and light increase the brittleness of the ink-receiving layer of some inkjet papers. The purpose of this investigation was to explore if light also increases the propensity of inkjet prints to abrade, and to examine the potential of framing glazings to mitigate light-induced physical damage (cracking and abrasion) by attenuating some portion of the UV spectrum. Inkjet papers and prints were subjected to xenon lighting (to simulate daylight through window glass) without glazing, or in sealed framing packages with plain framing glass (soda-lime) or UV filtering glass. Before and after light exposure, brittleness, and abrasion resistance were evaluated independently using two tests: ISO 18907 (Imaging materials – Photographic films and papers – Wedge test for brittleness) and a rub test utilizing a Sutherland® Rub Tester. In this study, exposure to light increased the cracking and/or abrasion tendency of some specimens. The use of UV filtering glass reduced this light-induced propensity in all cases. Plain glass protected all samples from at least one of these two types of surface damage, but was less effective than UV glass. Light-induced brittleness and sensitivity to abrasion were mostly, though not exclusively, caused by UV radiation. It was also seen that some prints may become brittle and/or prone to abrasion in the absence of image fade. Budgeting the amount of light these objects can be exposed to, protecting them from UV radiation, and handling prints with caution especially after exhibition, is essential in order to limit physical damage.  相似文献   

机动车交通事故损害赔偿责任的构成要件研究   总被引：2，自引：0，他引：2  

刘晓红 《洛阳师范学院学报》2002,21(6):50-53

我国机动车交通事故损害赔偿责任的构成要件,除包括机动车交通事故致人损害事实、机 动车交通事故致人损害行为的违法性,以及机动车侵权行为与损害事实之间的因果关系等一般要件,还 应包括道路要件、车辆要件、交通要件和人身损害赔偿要件等特别要件。  相似文献   

建筑抗震概念设计     

王蕊  王樾 《金陵科技学院学报(社会科学版)》2003,18(1):58-60

本文从建筑的平立面布置、抗震结构体系、结构构件和非结构构件设计等方面阐述了建筑抗震概念设计的一般原则和规律  相似文献   

雷电损坏电视机的机理分析     

廖北文 《衡阳师范学院学报》1990,(3)

本文运用电磁感应原理分析了雷电的电磁效应及产生原理,阐明了雷电感应具有大电流、高电压的特点和雷电所产生的电磁场具有高频电磁波的性质,论述了雷电损坏电视机的机理和避雷防雷措施。  相似文献   

关于泄洪洞水力设计中空蚀问题的探讨     

邓祥辉  王波 《杨凌职业技术学院学报》2007,6(1):12-14

首先介绍了空蚀破坏的原理以及发生空蚀破坏的条件，并分析了龙抬头式泄洪洞发生空蚀破坏的原因和易发生空蚀破坏的部位。最后，结合工程实例的实验结果，说明了发生空蚀破坏的主要原因是不平整度以及体型的不合理。  相似文献   

精神损害的国家赔偿责任     

唐春晖 《培训与研究》2007,24(10):72-73

精神损害的国家赔偿是国际上许多国家和地区的立法趋势,而我国的《国家赔偿法》却并没有对此做出相应的金钱或者物质赔偿的规定。面对现实生活中行政权的滥用,为了确保公民的权利得到有效的保障,构建国家赔偿中的精神损害赔偿制度是中国法律发展的必然目标。  相似文献   

论执法不公的危害、成因及对策     

孙来清 《齐齐哈尔师范高等专科学校学报》2003,22(4):33-35

十五大以来，我国法治化进程以前所未有的速度发展和完善，但法制建设也存在一些问题，执法不公现象尤显突出。本着重探讨了执法不公的严重社会危害性，分析了造成执法不公的经济、政治、思想等诸多方面的原因，进而提出了当前控减执法不公现象的对策，并力图做到标本兼治。  相似文献   

浅谈专利侵权的损害赔偿     

许孝春 《河北能源职业技术学院学报》2002,2(3):11-12,15

本文论述了专利侵权损害赔偿的诉讼主体，赔偿原则，赔偿额的确定等问题。并就司法实践中若干成型的做法予以阐示。  相似文献