Sökning: "Helena lic"

Visar resultat 16 - 20 av 107 avhandlingar innehållade orden Helena lic.

  1. 16. Traceability in food supply chains - Beyond food safety

    Författare :Helena Lindh; Förpackningslogistik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; food supply chains; case study; Traceability;

    Sammanfattning : The former close relation between producer and consumer has gradually disappeared in the industrialisation and globalisation of the food industry. As a result a need for traceability has emerged. LÄS MER

  3. 17. Equine glutathione transferase A3-3 : an efficient steroid isomerase

    Författare :Helena Lindström; Bengt Mannervik; Ann-Kristin Östlund Farrants; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Equine; glutatione transferase; steroidogenesis; steroid isomerase; neurokemi med molekylär neurobiologi; Neurochemistry with Molecular Neurobiology;

    Sammanfattning : Glutathione transferases (GSTs) comprise a superfamily of enzymes prominently involved in detoxication by making toxic electrophiles more polar and therefore more easily excretable. However some GSTs have developed alternative functions. LÄS MER

  4. 18. Amidst the green Metal-catalyzed amide formation from carboxylic acids

    Författare :Helena Lundberg; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis describes novel methods for transition metal-catalyzed transformation of non-activated carboxylic acids to amides. It was found that 2-10 mol% of zirconium(IV) chloride or 10-20 mol% titanium(IV) isopropoxide catalyzed the formation of a range of secondary and tertiary amides in good to excellent yields (61-99%) in THF at 70-100°C, with molecular sieves present as water scavengers. LÄS MER

  5. 19. Orientation and misorientation effects on recrystallization kinetics

    Författare :Helena Magnusson; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  7. 20. Towards Porphyrin-Based Molecular Tools

    Författare :Helena Melander; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Organisk kemi;

    Sammanfattning : .... LÄS MER