Search for dissertations about: "cis trans"

Showing result 16 - 20 of 121 swedish dissertations containing the words cis trans.

  2. 16. The molecular biology of retinoid metabolism : identification of an 11-cis retinol dehydrogenase in the retinal pigment epithelium

    Author : András Simon; Karolinska Institutet; Karolinska Institutet; []
    Keywords : 11-cis retinol; 11-cis retinol dehydrogenase; chromophore; 11-cis retinaldehyde; 9-cis retinol; 9-cis retinol dehydrogenase; retinal pigment epithelium; vitamin A; short-chain alcohol dehydrogenase;

    Abstract : Vitamin A derivatives (retinoids) are essential molecules in the course of embryonic development, postnatal growth and adult physiology. The physiological functions of retinoids are thought to be mediated mainly by retinoic acid which regulates the expression of various genes, and 11-cis retinaldehyde, which is the common chromophore of visual pigments. READ MORE

  4. 17. Organic photochemistry : diabatic and adiabatic cis-trans isomerizations and energy transfer processes in compounds having two carbon-carbon double bonds

    Author : Ingjald Anger; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  5. 18. The thermal cis-trans isomerization of azobenzene, stilbene, N-benzylideneaniline and some of their derivatives in the vapour phase at elevated temperatures studied by flash photolysis

    Author : Jan-Åke Andersson; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  6. 19. Content and In Vitro Accessibility of Provitamin. A Carotenoids in Some Tanzanian Vegetables and Fruits Effects of Traditional Processing and Preparation, and Influence on Vitamin A Status

    Author : Generose Ishengoma Mulokozi; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; in vitro accessibility; sunflower oil; solar cabinet drying; women; all-trans-beta-carotene; alpha-carotene; open sun-drying; vitamin A; provitamin A carotenoids; plasma; breast milk; fruits; vegetables; red palm oil; Tanzania; beta-cryptoxanthin; pregnancy; children;

    Abstract : Vitamin A deficiency is among the major nutritional problems in Tanzania as in many developing countries. It mainly affects children and pregnant and lactating women. The basic cause of this problem is related to the diet, which contains little preformed vitamin A and plant foods with a low content and bioavailability of provitamin A carotenoids. READ MORE

  7. 20. Retinoids and vitamin D in skin and parathyroid glands

    Author : Liu Wei; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; all-trans retinoic acid 9-cis retinoic acid vitamin A. vitamin D. CRBP. CRABP. RAR. RXR. parathyroid hormone. calcium receptor; Kirurgi; Surgery; Kirurgi; Surgery; kirurgi;

    Abstract : Vitamin D3 (VitD3) and retinoids are important factors involved in differentiation and proliferation in many cell systems. Their effects in skin, where retinoids and vitamin D are known to be crucially involved in keratinocyte differentiation and function,, and in the parathyroid, the overall regulatory organ in calcium homeostasis were studied. READ MORE