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Discussed in this paper are the regularities governing the prevalence of Keshan disease and its relationship te the local rock type, soil, vegetation, climate and landform, as well aa to the characteristic variations of stereo-environment- environmental gradient in Yunnan Province. Based upon the foregoing discussion, the gradations of environmental quality and the coefficients of environmental quality mirroring the general picture of physical environment there have been determined, and a model of environmental quality has been established with an attempt to detail the relationship between the factors of environmental geology and Keshan disease.  相似文献   
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微量元素钼预防克山病的实验研究   总被引:2,自引:0,他引:2  
The role of trace element Mo in the prevention of Keshan disease is a new subject in environmental geochemistry. Experimental observations have shown that the natnral incidence of Keshan disease has dropped obviously among inhabitants in the Keshan disease-affeeted areas as a result of six-year successive spreading of anomium molybdate in the crop fields because in doing so the level of molybdenum has been enhaneed in grain crops while the concentrations of nitrates and nitrites have been reduced remarkably in the environment. Experimental results demonstrate that molybdenum may play an effective role in the prevention of Keshan disease.  相似文献   
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前言 贵州省息烽温泉至今已有百余年的开发历史,是贵州高原上的疗养胜地。 根据息烽温泉工人疗养院多年来的临床实践和医疗记录,特别是通过对5234个典型病例的总结(表1)表明,矿泉水对慢性风湿性关节炎、外伤后遗症及原发性高血压等多种慢性疾病具有较好疗效。  相似文献   
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一、前言 地球化学环境与心脏健康的关系,是国际间热烈讨论的课题。但是,把岩石—土壤—水体—植物—动物—人体视为统一生态系统,去研究微量元素在此生态系统中的迁移富集规律以及人体的适应性反应的工作还很少;目前各国已注意到许多元素与心脏健康的关系,但还很少讨论环境中的钼对心脏健康的影响。 自1968年以来,我们对发生于我国一些农村的一种地方性心肌病开展了环境地球化  相似文献   
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The pulsational characteristics of magmatic activity are discussed in terms of potyeyelcs, polyphases and polystagcs for Mesozoic granites from Ⅰ,Ⅱ, Ⅲ areas.Based on 141 rock analyses, 80 semiquantitative spectrographic analyses for the granites and 50 chemical analyses for beryllium, niobium and tantalum, the authors present pertinent diagrams and petrochemical-geoehemical parameters which bring out the periodic variations in the bulk chemical composition of the rocks as wen as the periodicity of rare metal mineralization during the differentiation and evolution of Mesozoic granitic magmas. It is noted that the mineralization of lithium, beryllium, niobium and tantalum took place principally at later stages of each magmatic cycle. A camparison of the petrochemical-geochemical characteristics between granites east and west of the L-R Fault has led to the recognition of two different granite areas and two geochemical provinces for beryllium.  相似文献   
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