Sökning: "MS physical activity"

Visar resultat 1 - 5 av 17 avhandlingar innehållade orden MS physical activity.

  1. 1. NMR studies of protein dynamics and structure

    Författare :Jörgen Ådén; Magnus Wolf-Watz; Michael Sattler; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NMR; protein dynamics; relaxation; protein folding; Biochemistry; Biokemi; Biophysical chemistry; Biofysikalisk kemi; biokemi; Biochemistry; fysikalisk kemi; Physical Chemistry;

    Sammanfattning : Enzymes are extraordinary molecules that can accelerate chemical reactions by several orders of magnitude. With recent advancements in structural biology together with classical enzymology the mechanism of many enzymes has become understood at the molecular level. LÄS MER

  3. 2. Temperature programmed studies of molecular assemblies on gold

    Författare :Mattias Östblom; Sven Oscarsson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis investigates the properties of ultra-thin layers of organic molecules deposited at or adsorbed onto thin films of gold. The two main experimental techniques used in this thesis work are Temperature Programmed Desorption-Infrared Reflection Absorption Spectroscopy (TPD-IRAS), an excellent technique to probe the structure and orientation of molecular layers on metallic substrates, and Temperature Programmed Desorption-Mass Spectroscopy (TPD-MS), a very useful tool to study the energetics of molecular layers and adsorbates on solid surfaces. LÄS MER

  4. 3. Interaction between Electromagnetic Waves and Localized Plasma Oscillations

    Författare :Jan-Ove Hall; Thomas Leyser; Jan Trulsen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Space and plasma physics; space physics; plasma physics; radio waves; ionospheric modification; density depleations; field-aligned irregularities; lower hybrid solitary structures; lower hybrid cavities; Z mode waves; magnetosonic waves; scattering; mode conversion; Rymd- och plasmafysik; Space physics; Rymdfysik;

    Sammanfattning : This thesis treats interaction between electromagnetic waves and localized plasma oscillations. Two specific physical systems are considered, namely artificially excited magnetic field-aligned irregularities (striations) and naturally excited lower hybrid solitary structures (LHSS). LÄS MER

  5. 4. Mass spectrometry based analysis of endogenous sterols and hormones

    Författare :Neil de Kock; Jonas Bergquist; Kumari Ubhayasekera; William J. Griffiths; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mass spectrometry; supercritical fluid chromatography; UPSFC–MS MS; bioanalysis; steroids; oxysterols; thyroid hormones; Kemi med inriktning mot analytisk kemi; Chemistry with specialization in Analytical Chemistry;

    Sammanfattning : Bioanalytical applications using supercritical fluid chromatography (SFC) as analytical technique are of increasing interest. In essence, bioanalysis involves measurement of bioactive or endogenous compounds in biological matrices. LÄS MER

  7. 5. Work ability in multiple sclerosis : the impact of immunomodulating treatments and adjusted working conditions

    Författare :Anne Wickström; Anders Svenningsson; Magnus Vrethem; Charlotte Dahle; Lars Forsgen; Fredrikson Sten; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Background Multiple sclerosis (MS) is a chronic inflammatory, demyelinating disease affecting the central nervous system (CNS) and is considered to be of autoimmune origin. The prevalence in Sweden is estimated to be about 1 in 500. LÄS MER