[Lead exposure aggravates Aβ<sub>1-42</sub>-induced microglial activation through mitochondrial calcium uniporter-mediated mitochondrial calcium accumulation]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoChen L +4 more
europepmc +1 more source
[Mutations of the ELANE gene cause severe congenital neutropenia with periodontal disease: a case report]. [PDF]
Hua Xi Kou Qiang Yi Xue Za Zhi, 2020 Chen Y +4 more
europepmc +1 more source
[<i>Lactobacillus plantarum</i> alleviates lead exposure-induced learning and memory impairment in mice by regulating bile acid metabolism and inhibiting hippocampal NLRP3 expression]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoLi L, Yu W, Tan M, Li Y, Liu A, Meng X.
europepmc +1 more source
, 2017 中国古代存在一种坩埚炼铅技术,即在坩埚中用铁从方铅矿取代出铅。近年来,在北方地区发现多处坩埚炼铅遗址,多为辽金元时期。本文对河南桐柏围山遗址出土的坩埚和坩埚渣样品进行了宏观和微观观察及化学分析。结果表明,围山所用的坩埚为圜底圆筒形罐,制作坩埚的主要原料是高岭土类原料,掺有高岭土粘土颗粒,有的还加有木炭或煤炭。坩埚渣的玻璃态基体中存在大量的石英颗粒,少量细小铅冰铜和铅颗粒,其中一个坩埚渣中存在大量的铁块,据此判断采用了铁还原法 ...
刘思然, 周文丽, 陈建立
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[Association between mixed metal element exposure and the risk of thyroid carcinoma: a case-control study]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanZhan Z +6 more
europepmc +1 more source
The Effects of Blood Lead on Child Development and Its Characteristics
, 2013 铅具有很强的神经发育毒性,即使是低水平的铅暴露也会对个体发展产生消极的影响。本文综述了铅对个体影响的研究,这些研究表明铅导致个体产生生理缺陷、认知能力下降及社会情绪性障碍等症状,对处在生长发育重要时期的儿童影响更长远。已有研究发现,血铅对儿童的影响具有持久性的特点,而且血铅的危害很难通过螯合作用的干预得到改善。医疗干预及相关研究显示,积极避免铅接触是预防儿童铅中毒的最有效策略。本文为将来探讨血铅如何影响儿童认知 ...
朱莉琪, 陈哲, 林珠梅
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[Exposure to Lead, Arsenic, Mercury, and Cadmium in Populations in Sichuan and Chongqing : A Comparative Study of Reference Intervals Derived From Direct and Indirect Sampling Methods]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanNie M +8 more
europepmc +1 more source
, 2009 铅(Pb)是已知毒性最大的重金属污染物之一,它可通过呼吸以及饮食摄入人体.铅是一种慢性的积累性毒物和潜在的致癌、致突变物质.铅的性质与钙类似,在人体骨骼中能够积蓄,主要损害神经系统、造血器官和肾脏 ...
秦伟, 苏庆梅
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, 1999 商代的文明以大量精美绝伦的商代青铜器为标志。然而，在商代的政治文化中心、今安阳和郑州及近畿地区，都没有发现大的铜矿资源，使铸造所用的大批铜矿料是从哪儿来的问题长期以来成为一个悬案。该文采用了铅同位素示踪技术，测定了35件赣鄂豫地区商代青铜器和22个商周、春秋及现代的铜铅矿料样品。经对比发现，具有铅同位素中等比值的青铜器其银矿源主要来自江西的瑞昌铜岭和湖北的大冶铜绿山。在河南出现的铅同位素高比值的青铜器，其矿源可能来自商王朝的北方地区，如河北辽宁一带，史料称之为古方。然而对铅同位素低比值的青铜矿料 ...
华觉明 +3 more
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Paisagem é uma paisagem é uma paisagem é uma paisagem
, 2013 O presente artigo pretende identificar uma certa ideia de paisagem num ponto específico da obra de João Jacinto, ponto esse onde a presença da paisagem será, porventura, menos evidente. Pelo caminho, tecemos algumas considerações sobre as possibilidades da pintura contemporânea, a relação desta com a imagem digital e com a sua rica tradição.
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