Sökning: "urea"

Visar resultat 16 - 20 av 198 avhandlingar innehållade ordet urea.

  1. 16. Skin barrier responses to moisturizers

    Författare :Izabela Buraczewska; Hans Törmä; Marie Lodén; Berit Berne; Magnus Lindberg; Ehrhardt Proksch; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; skin barrier function; moisturizers; long-term treatment; transepidermal water loss; gene expression; skin pH; lipids; urea; Dermatology and venerology; Dermatologi och venerologi;

    Sammanfattning : Moisturizers are used in various types of dry skin disorders, but also by people with healthy skin. It is not unusual that use of moisturizers is continued for weeks, months, or even years. LÄS MER

  3. 17. Novel Metal-Mediated Organic Transformations : Focusing on Microwave Acceleration and the Oxidative Heck Reaction

    Författare :Per-Anders Enquist; Mats Larhed; Anders Hallberg; Troels Skrydstrup; Uppsala universitet; []
    Nyckelord :Organic chemistry; palladium II ; oxidative Heck reaction; high-throughput-chemistry; microwave acceleration; dicobalt octacarbonyl; in situ carbonylation; urea; diaryl ketones; ESI-MS; Organisk kemi;

    Sammanfattning : Transition metals have played an important role in synthetic organic chemistry for more than a century, and offer catalytic transformations that would have been impossible with classical chemistry. One of the most useful and versatile of the transition metals is palladium, which over the years has catalyzed many important carbon-carbon forming reactions. LÄS MER

  4. 18. Nutrition in infancy - Clinical studies on dietary intake, metabolism and growth

    Författare :Pia Karlsland Åkeson; Preventiv pediatrik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; urea; triglycerides; protein intake; nutrition; Mediterranean; infant; growth; formula; fat intake; energy intake; diet; C-peptide; cholesterol; breast milk; bioavailability; amino acids; apolipoproteins; weaning; weaning foods; Pediatrics; Pediatri;

    Sammanfattning : Nutrition in infancy - Clinical studies on dietary intake, metabolism and growth Our aims were to try to determine an appropriate formula protein concentration to be used during the second half of infancy and to evaluate the effects on plasma lipids when breast milk was exchanged for formula and/or weaning foods. Both aspects were studied with special regard to the influence of traditional weaning foods. LÄS MER

  5. 19. Microscopic evaluation of hydroxypropyl potato starch granules in relation to the degrees of substitution

    Författare :Hak-Ryang Kim; RISE; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; degree of substitution; hydroxypropyl potato starch; light microscopy; structural changes of starch granule; loss of birefringe; urea;

    Sammanfattning : .... LÄS MER

  7. 20. Flexible Synthesis of Rigid Cyclophanes - Synthesis and derivatisation of 2,7-diaza-1,2,3,6,7,8-hexahydropyrene into chiral macrocycles

    Författare :Jörgen Toftered; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Macromolecular chemistry; Makromolekylär kemi; biomimetic; cross-linking; thiourea; urea; difluorodinitrobenzene; cyclodimerisation; Cyclophanes; macrocycles;

    Sammanfattning : Rigid, chiral and amphiphilic cyclophanes of potential use as biomimetic host molecules were prepared by cyclic dimerisation of chiral diamino building blocks with amino-reactive cross-linking reagents. A reliable synthesis of the scaffold 2,7-diaza-1,2,3,6,7,8-hexahydropyrene was developed. LÄS MER