Search for dissertations about: "cis trans"

Showing result 11 - 15 of 121 swedish dissertations containing the words cis trans.

  2. 11. Transient State Fluorescence Microscopy - method development and biological applications : Exploiting the dark states of fluorophores to measure oxygen concentrations, redox state, Förster resonance energy transfer and membrane viscosity

    Author : Thiemo Spielmann; Jerker Widengren; Karsten König; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Transient States imaging TRAST ; Triplet State imaging; fluorescence microscopy; modulated excitation; triplet state; radical state; trans-cis isomerisation;

    Abstract : Due to their long lifetime, triplet, redox and other transient states of fluorophores are highly sensitive to the micro-environment. Imaging their spatial distribution in biological samples can therefore help answer interesting questions about the metabolism, molecular interactions and dynamics in living cells. READ MORE

  4. 12. A flash photolysis study of the thermal cis-trans isomerization of some aromatic Schiff bases in solution

    Author : Lars Tegnér; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  5. 13. Retinol dehydrogenases in retinoid metabolism : studies on a 9-cis/11-cis-retinol dehydrogenase in adult and embryonic tissues

    Author : Anna Romert; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Retinoids (vitamin A derivatives) are necessary for normal embryonic development and in the adult, for vision, differentiation of various epithelia, reproduction and in the immune system. The physiological effects of retinoids are mediated by binding to the retinoic acid receptors (RARs) and the retinoid X receptors (RXRs). READ MORE

  6. 14. Thermal cis-trans isomerization in the vapour phase of stilbene, azobenzene, N-benzylideneaniline and some of their derivatives : a flash photolysis study

    Author : Roland Pettersson; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  7. 15. The informational value and usefulness of serum retinoid measurements. Studies on biological variation, including infancy and pregnancy, and influence of fasting, antiepileptic drugs and ethanol

    Author : Maria Berggren Söderlund; Avdelningen för klinisk kemi och farmakologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Klinisk kemi; Clinical chemistry; vitamin A deficiency; teratogenicity; ethanol; antiepileptic drugs; caloric restriction; infant; pregnant; biological variation; 13-cis retinoic acid; all-trans retinoic acid; Vitamin A; retinol;

    Abstract : The aims of these studies were to evaluate retinoid measurements, more specifically the performance of all-trans and 13-cis retinoic acids methods in clinical experimental settings and to evaluate the informational value of these measurements in relation to S-Retinol. Biological and analytical variations for retinoids were evaluated for healthy subjects. READ MORE