Sökning: "ferrous iron"

Visar resultat 1 - 5 av 49 avhandlingar innehållade orden ferrous iron.

  1. 1. Iron absorption in man - diet modification and fortification

    Författare :Michael Hoppe; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :Iron absorption; Serum iron; Relative bioavailability; Elemental iron; Iron bioavailability; Iron fortification; Dietary modification; Developing countries;

    Sammanfattning : Background: Iron (Fe) deficiency is globally the most common form of nutrient deficiency. The approach to combat this problem can be divided into two major strategies a): increasing the dietary Fe bioavailability by diet modification, or b): increasing the Fe intake through fortification. LÄS MER

  2. 2. Factors Influencing Iron Dialyzability and Uptake in In Vitro Models

    Författare :Susan Salovaara; Chalmers University of Technology; []
    Nyckelord :ferric iron; iron dialyzability; Caco-2 cells; pea protein; organic acids; gastrointestinal model; transit time; iron absorption; ferrous iron;

    Sammanfattning : The availability or iron from a meal is influenced by numerous factors. This thesis deals with three of them: organic acids, plant proteins (pea and soy), and transit time through the stomach and small intestine. LÄS MER

  3. 3. Casting Identities in Central Seclusion : Aspects of non-ferrous metalworking and society on Gotland in the Early Medieval Period

    Författare :Ny Björn Gustafsson; Lena Holmquist; Heidemarie Eilbracht; Stockholms universitet; []
    Nyckelord :HUMANITIES; HUMANIORA; HUMANIORA; HUMANITIES; Archaeometallurgy; Non-ferrous; Archaeological prospection; Metal detection; Geophysical survey; Sweden; Magnetometry; Gotland; Iron Age; Viking Period; Archaeological Science; laborativ arkeologi;

    Sammanfattning : The aim of this thesis has been to investigate and interpret late Iron Ageand Early Medieval traces of non-ferrous metalworking on the islandGotland, Sweden. Gotland was not, based on the archaeological record, anintegrated part of the common Scandinavian culture. LÄS MER

  4. 4. Theoretical studies of mononuclear non-heme iron active sites

    Författare :Arianna Bassan; Per E. M. Siegbahn; Sason Shaik; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; quantum chemistry; enzyme catalysis; iron enzymes; Quantum chemistry; Kvantkemi;

    Sammanfattning : The quantum chemical investigations presented in this thesis use hybrid density functional theory to shed light on the catalytic mechanisms of mononuclear non-heme iron oxygenases, accommodating a ferrous ion in their active sites. More specifically, the dioxygen activation process and the subsequent oxidative reactions in the following enzymes were studied: tetrahydrobiopterin-dependent hydroxylases, naphthalene 1,2-dioxygenase and α-ketoglutarate-dependent enzymes. LÄS MER

  5. 5. 11C Molecular Imaging in Focal Epilepsy

    Författare :Torsten Danfors; Eva Kumlien; Jens Sörensen; Elisabeth Ronne-Engström; Juha Rinne; Uppsala universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; positron emission tomography; methionine; NK1; substance p; flumazenil; deprenyl; pk11195; phosphoimager; autoradiography; TBI; traumatic brain injury; iron chloride; ferrous chloride; Neurology; Neurologi; Radiology; Radiologi;

    Sammanfattning : Epilepsy is a common neurological disease affecting 6 million people in Europe. Early prevention and accurate diagnosis and treatment are of importance to obtain seizure freedom. In this thesis new applications of carbon-11-labelled tracers in PET and autoradiographic studies were explored in focal epilepsy. LÄS MER