Sökning: "ring species"

Visar resultat 21 - 25 av 65 avhandlingar innehållade orden ring species.

  1. 21. Terpenoid Conidiation Factors in Penicillium cyclopium

    Författare :Yanhong He; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; acetals; hydrolysis; Biotechnology; Bioteknik; total synthesis; analogues; synthesis; conidiogenone; conidiogenol; terpenoid; Penicillium cyclopium; conidiation inducing activity; Natural product; fungal metabolites;

    Sammanfattning : Filamentous fungi produce asexual dispersive spores (conidia), when conditions are not suitable for apical extension growth. Conidiation (the process by which conidia produced) in genus Penicillium has attracted considerable interest because of its wide usage in different areas. LÄS MER

  3. 22. Biotransformation of the antineoplastic drug oxaliplatin : importance for effects and side effects

    Författare :Elin Jerremalm; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Oxaliplatin is a platinum-based cytostatic drug. It is used in combination with 5-fluorouracil and leucovorin for palliative and adjuvant treatment of metastatic colorectal cancer. LÄS MER

  4. 23. Insights into enzymatic thiamin catalysis

    Författare :Christer Wikner; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :thiamin; transketolase; catalysis; catalytic mechanism; site-directed muta genesis; enzyme kinetics; circular dichroism Christer Wikner; Molecular Structural Biology; Dept. of Medical Biochemistry and Biophysics; Karolinska Institutet; S-171 77 Stoc;

    Sammanfattning : Thiamin diphosphate, the biologically active form of vitamin B,, functions as a cofactor in various enzymes in the cell. The protein enhances the reactivity of the cofactor by binding it in a very specific manner. LÄS MER

  5. 24. Birch Stem and Wood Traits in Genetic and Silviculture Trials in Southern Sweden

    Författare :Grace Jones; Stergios Adamopoulos; Mateusz Liziniewicz; Mikael Andersson; Sheikh Ali Ahmed; Erkki Verkasalo; Linnéuniversitetet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; acoustic velocity; Betula spp.; dynamic MOE; genetic parameters; grain angle; hardwood; Itrax densitometry; mixed forests; non-destructive testing; stem form; akustisk velocitet; Betula spp.; blandskog; densitometri; genetiska parametrar; icke destruktiva metoder; Itrax; lövträ; skogsodling; stamkvalitet; vedsegenskaper; Forestry and Wood Technology; Skog och träteknik;

    Sammanfattning : Swedish tree species of birch (silver: Betula pendula and downy: B. pubescens) are often neglected during forest management activities, resulting in low value logs. This thesis investigated birch stem characteristics and wood properties important for solid wood products, in genetics and management trials in southern Sweden. LÄS MER

  7. 25. Cellular toxicity of quinones : Redox- and addition chemistry

    Författare :Karin Öllinger; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Quinoid compounds are widely occurring in nature. They have cytotoxic properties and they are also used as antineoplastic agents. The cytotoxic properties can be explained by the ability of quinones to generate active oxygen species by redox cycling, by addition to cellular nucleophiles, and by inhibition of DNA transcription. LÄS MER