Search for dissertations about: "B M Persson"

Showing result 1 - 5 of 8 swedish dissertations containing the words B M Persson.

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

    Author : Jörgen Jönsson; Lars Lövgren; Per Persson; Staffan Sjöberg; Douglas B Kent; Umeå universitet; []
    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; Inorganic chemistry; 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

  4. 2. Alternative Stable States in Size-Structured Communities : Patterns, Processes, and Mechanisms

    Author : Arne Schröder; Lennart Persson; André M. de Roos; Tim Benton; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; biomass overcompensation; Chaoborus; emergent Allee effect; Heterandria formosa; juvenile recruitment bottlenecks; ontogenetic niche shifts; Poecilia reticulata; Biology; Biologi;

    Abstract : Alternative stable states have been, based on theoretical findings, predicted to be common in ecological systems. Empirical data from a number of laboratory and natural studies strongly suggest that alternative stable states also occur in real populations, communities and ecosystems. READ MORE

  5. 3. The N-terminal EGF Module of Coagulation factor IX. Studies of Calcium Binding and Module Interactions

    Author : Kristina Persson; Malmö Klinisk kemi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; coagulation FIX EGF module calcium binding interaction; Clinical chemistry; Klinisk kemi;

    Abstract : Coagulation factor IX (FIX) is a vitamin K-dependent serine protease zymogen that circulates in plasma. Defects in FIX cause the bleeding disorder hemophilia B. FIX contains a Gla module, two Epidermal Growth Factor (EGF) -like modules and a serine protease region. READ MORE

  6. 4. Mechanism of Action of the Antiarrhythmic Agent AZD7009

    Author : Frida Persson; Göteborgs universitet; []
    Keywords : atrial fibrillation; antiarrhythmic drug; IKr; IKur; Ito; IKs; IKACh; INa; ICaL; cardiac action potential; early afterdepolarisation;

    Abstract : Atrial fibrillation (AF) is the most common tachyarrhythmia in the adult population and is a major cause of morbidity and mortality. AF can be terminated and sinus rhythm restored by prolonging the action potential duration (APD) and the refractory period. READ MORE

  7. 5. Pharmacological interactions between angiotensin-converting enzyme (ACE) inhibitors, bradykinin and nitric oxide

    Author : Karin Persson; Karl-Erik Andersson; Linköpings universitet; []
    Keywords : angiotensin-converting enzyme; angiotensin-converting enzyme inhibitors; atherosclerosis; bradykinin; endothelium; in vitro; nitric oxide; MEDICINE; MEDICIN;

    Abstract : Cardiovascular diseases are a major cause of death in Western countries. Angiotensin-converting enzyme (ACE) is as a key enzyme in the renin-angiotensin system involved in the regulation of blood pressure, and water and electrolyte balance in the body. READ MORE