Search for dissertations about: "lead II"

Showing result 1 - 5 of 898 swedish dissertations containing the words lead II.

  1. 1. Phase transformation and surface chemistry of secondary iron minerals formed from acid mine drainage

    Author : Jörgen Jönsson; Umeå universitet.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; schwertmannite; goethite; lepidocrocite; acid mine drainage; sulphate; natural organic matter; mineral surface; infrared spectroscopy; EXAFS; XRD; ternary surface complex; copper II ; cadmium II ; lead II ; zinc II ; Oorganisk kemi; NATURAL SCIENCES Chemistry Inorganic chemistry; NATURVETENSKAP Kemi Oorganisk kemi; Inorganic Chemistry; oorganisk kemi;

    Abstract : The mining of sulphidic ore to extract metals such as zinc and copper produces huge quantities of waste material. The weathering and oxidation of the waste produces what is commonly known as Acid Mine Drainage (AMD), a dilute sulphuric acid rich in Fe(II) and heavy metals. READ MORE

  2. 2. Expression and Regulation of P2 Receptors in Human Circulation

    University dissertation from Lingwei Wang, Dep. of Cardiology, Lund University Hospital, Lund , Sweden

    Author : Lingwei Wang; Lunds universitet.; Lund University.; [2004]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Western blotting; Cardiovascular system; Kardiovaskulära systemet; vascular remodeling; systemic lupus erythematosus; smooth muscle cell; shear stress; real-time PCR; platelets; P2 receptor; gene expression; erythrocyte; ATP release; endothelium;

    Abstract : Popular Abstract in Swedish På senare tid har ett stort antal receptorer för extracellulära nukleotider (P2 receptorer) klonats vilka förmedlar en mängd effekter i hjärtkärlsystemet: inotropa effekter på hjärtat, trombocytaggregation, blodtrycksreglering, frisättning av endoteliala faktorer och stimulering av glatt muskeltillväxt. Redan idag står det klart att P2-receptorer är fysiologiskt och patofysiologiskt av stor betydelse. READ MORE

  3. 3. Lead(II) as a Tool for Probing RNA Structure in vivo

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Magnus Lindell; Uppsala universitet.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Molecular biology; lead II cleavage; RNA structure; in vivo probing; Molekylärbiologi; NATURAL SCIENCES Biology Cell and molecular biology Molecular biology; NATURVETENSKAP Biologi Cell- och molekylärbiologi Molekylärbiologi;

    Abstract : Chemical modification and limited enzymatic hydrolysis are powerful methods to obtain detailed information on the structure and dynamics of RNAs in solution. In the work presented here I have taken advantage of the properties of the divalent metal ion lead(II) to establish it as a new probe for investigating the structure of RNA in vivo. READ MORE

  4. 4. Lead exposure in indigenous children of the Peruvian Amazon seeking the hidden source,venturing into participatory research

    University dissertation from Umeå : Umeå university

    Author : Cynthia Anticona Huaynate; Umeå universitet.; [2012]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; lead exposure; children; indigenous; Corrientes river; participatory research; Peruvian Amazon; folkhälsa; Public health;

    Abstract : Introduction. In 2006, a Peruvian environmental agency reported the presence of elevated blood lead levels (BLLs) in indigenous communities of the Corrientes river basin. This is a territory in the Peruvian Amazon where oil activity has been associated with serious environmental effects, with impact on an ongoing social conflict. READ MORE

  5. 5. Laboratory and Stellar Spectra in High Resolution: Studies of Fe, Pt and Tl in Peculiar Stars

    University dissertation from Umeå : Umeå university

    Author : Gabriele Kalus; Lunds universitet.; Lund University.; [1997]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; high-resolution spectroscopy; hyperfine structure; peculiar stars; iron; platinum; lead; upsilon Sagittarii; HR7775; chi Lupi; isotope shift; Atomic and molecular physics; Atom- och molekylärfysik; Fysicumarkivet A:1997:Kalus;

    Abstract : The near-infrared spectrum of upsilon Sagittarii has been registered using the SOFIN high resolution spectrometer on the Nordic Optic Telescope, La Palma. For the first time 4f-5g transitions of Fe II in any astrophysical spectrum have been identified. READ MORE