Sökning: "selenium"

Visar resultat 21 - 25 av 111 avhandlingar innehållade ordet selenium.

  1. 21. Arsenic Influences Virus Replication in Experimental Coxsackievirus B3 Infection

    Författare :Ylva Molin; Nils-Gunnar Ilbäck; Eva Hjelm; Göran Friman; Jonas Blomberg; Gunnar Nordberg; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; coxsackievirus B3; trace elements; arsenic; selenium; virology; IFN-γ; NFκB; Infectious diseases; Infektionssjukdomar; Infectious Diseases; Infektionssjukdomar;

    Sammanfattning : Trace elements are essential for the host defence against infections, and during common infections, the balance of trace elements is changed in serum and tissues. Supplementation with selenium (Se), an essential trace element, is known to decrease the severity of coxsackievirus B3 (CVB3) infection in mice. LÄS MER

  3. 22. Molecular Alligator Clips: A Study of Metal-Molecule Contacts for Molecular Electronics

    Författare :Anton Grigoriev; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nonequilibrium Green s functions; single crystal surfaces; nanostructures; chemisorption; selenium; low index single crystal surface; density functional calculations; organic molecules; sulphur; nonequilibrium electron transport; gold;

    Sammanfattning : In this thesis we present a computational study of the elementary building blocks for molecular electronics, interconnected electronic devices with critical dimensions below 5 nm. Building electronic circuits on that scale requires stable connection between the various parts of the device and to the macroscopic metal electrodes, needed for power supply, support and integration with conventional electronics. LÄS MER

  4. 23. Exploring Novel Catalytic Chalcogenide Antioxidants

    Författare :Henrik Johansson; Lars Engman; Helena Grennberg; Troels Skrydstrup; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; antioxidant; tellurium; selenium; catalytic; toxicity; ROS; neutrophil; glutathione peroxidase mimic; macrophage.; Organic chemistry; Organisk kemi; Kemi med inriktning mot organisk kemi; Chemistry with specialization in Organic Chemistry;

    Sammanfattning : This thesis is concerned with the synthesis and evaluation of regenerable chalcogen containing antioxidants. Variously substituted 2,3-dihydrobenzo[b]selenophene-5-ol antioxidants were evaluated in order to gain information about structure/reactivity-relationships. LÄS MER

  5. 24. Bioactive Proteins in Bovine Milk - Studies on Glutathione Peroxidase, Lactoferrin and Immunoglobulins

    Författare :Helena Lindmark Månsson; Kemiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; General biomedical sciences; Biokemisk teknik; Biochemical technology; thermal stability; milk processability; selenium; antioxidants; immunoglobulin; lactoferrin; Milk; glutathione peroxidase; Biomedicinska vetenskaper allmänt ; Biochemistry; Metabolism; Biokemi; metabolism;

    Sammanfattning : Many proteins in bovine milk exhibit specific biological activity in addition to their established nutritional value as source of protein. Examples of such bioactive proteins are extracellular glutathione peroxidase, lactoferrin and immunoglobulins. LÄS MER

  7. 25. Studies on selenium deficiency and the physiological role of selenium

    Författare :Ulf Olsson; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : .... LÄS MER