Limb reduction and chorion villus sampling

Upper limb reduction was diagnosed by ultrasound scan at 17 weeks after chorion villus sampling at 9 weeks' gestation. Pregnancy was terminated and necropsy confirmed limb reduction in an otherwise normal fetus. The relationship of limb reduction to amniotic band syndrome is discussed.     

Gold mining in Siberia and the Far East as a source of mercury contamination of the environment

ＩｎｔｒｏｄｕｃｔｉｏｎＳｉｂｅｒｉａａｎｄｔｈｅＦａｒＥａｓｔａｒｅｔｈｅｏｌｄｅｓｔａｎｄｔｈｅｒｉｃｈｅｓｔｇｏｌｄ ｍｉｎｉｎｇａｒｅａｓｏｆＲｕｓｓｉａ .Ｉｎｔｅｎｓｉｖｅｇｏｌｄ ｍｉｎｉｎｇｈｅｒｅｓｔａｒｔｅｄｉｎｔｈｅｂｅｇｉｎｎｉｎｇｏｆｔｈｅ 19ｔｈｃｅｎｔｕｒｙ(Ｖｙａｚｅｌｓｈｃｈｉｋｏｖ ,1963) .Ｆｏｒｔｈｅｍｏｓｔｐａｒｔｇｏｌｄ ｂｅａｒｉｎｇｏｒｅｓａｎｄｓａｎｄｓｗｅｒｅｐｒｏｃｅｓｓｅｄｗｉｔｈｔｈｅｕｓｅｏｆａｍａｌｇａｍａｔｉｏｎｍｅｔｈｏｄｆｏｒｇｏｌｄｅ…     

兰州市大气飘尘中致突变物变化规律的研究

本研究对兰州市不同污染区(石油化工为主、燃煤、商业及农村)在不同季节时的大气飘尘,作了对比采样.飘尘样品用溶剂抽提法提取后,用化学萃取法分离为五个有机物馏分.用毛细色谱-质谱-计算机联用系统进行了定性分析,并用毛细管色谱法进行了部分定量分析.用Ames试验(用TA1537、TA98和TA100三株菌.加与不加S-1)对其致突变活性进行了研究.并对有机致突变物在不同污染区、不同季节的变化规律及其来源进行了初步探讨.     

Uran-Prospektion in der Bundesrepublik Deutschland

Two deposits that can be considered economically minable have been found during the last twenty years of prospecting for uranium in the Federal Republic of Germany. These deposits, Menzenschwand and Müllenbach, are situated in the northern and southern Black Forest, respectively. In addition, favorable indications have been found in Paleozoic granites of northeastern Bavaria, of the Black Forest, and Odenwald, as well as in Permian and Triassic sediments of Rheinland-Palatinate, Franconia, and Württemberg. The uranium resources that can be expected from all these deposits are insufficient to meet the domestic demand.