Search for dissertations about: "METHYLMERCURY"

Showing result 16 - 20 of 25 swedish dissertations containing the word METHYLMERCURY.

  2. 16. Studies of an elusive element : processes that influence the net retention of mercury in lake sediments and peatlands

    Author : Johan Rydberg; Richard Bindler; Carl Lamborg; Umeå universitet; []
    Keywords : Mercury; retention; lake sediments; peatlands; environmental archives; sedimentation; diagenesis; vegetation; permafrost; Environmental Science; miljövetenskap;

    Abstract : Because of its toxic nature mercury is a threat to both wildlife and human health, and thus, it is an element of concern in the environment. Currently much of the mercury emitted to the atmosphere is derived from anthropogenic sources – both direct emissions and re-emission of already deposited anthropogenic mercury. READ MORE

  4. 17. Neuronal and endocrine cells' susceptibility to physiologic and toxic stimuli : a study on the effects of steroid hormones

    Author : Eva Ahlbom; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : The propensity of a cell to die can be influenced by a number of factors, including hormones, which affect the intracellular and extracellular milieu. The aim of this thesis was to investigate the effects of hormones on cell fate in the nervous system and in the pituitary, with special reference to glucocorticoid and gonadal hormones. READ MORE

  5. 18. Assessment of environmental contaminants' neurotoxicity : in vitro and in vivo experimental studies

    Author : Wan Norhamidah Wan Ibrahim; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Accumulating evidence over several decades shows that environmental contaminants may lead to neurodevelopmental alterations. An essential prerequisite to prevention is recognition of a chemical‟s ability to harm the developing nervous system. READ MORE

  6. 19. Mercury methylation in boreal peatlands: Influence of geochemistry and biology

    Author : Baolin Wang; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Methylmercury (MeHg) is a neurotoxin mainly produced by microorganisms in suboxic and anoxic environments such as peatlands. Peatlands are an important source of MeHg in adjacent aquatic ecosystems, thus increasing the risk of human and wildlife exposure to this toxic compound. READ MORE

  7. 20. Alterations in proliferation and differentiation of neural stem cells induced by adverse neurodevelopmental factors

    Author : Raj Kumar Bose; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Predisposition to diseases can be acquired during early stages of development and resolve into an actual disorder later in life. Early life programming defines the association between challenges during pregnancy that result in altered fetal growth, and developmental and adult disorders. READ MORE