Search for dissertations about: "chemical defence"

Showing result 1 - 5 of 63 swedish dissertations containing the words chemical defence.

  1. 1. Chemical defence in Norway spruce

    Author : Marie Danielsson; Anna-Karin Borg-Karlson; Anders Backlund; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; volatiles; terpenes; green leaf volatiles; stilbenes; stress response; nepetalactone; Picea abies; Hylobius abietis; Cinara pilicornis; Oligonychus ununguis; Heterobasidion annosum; Chemistry; Kemi;

    Abstract : Norway spruce (Picea abies) responds to stress by biosynthesis of chemical substances, which can deter invading insects or pathogens. Some of these substances are volatile and can be emitted to the surroundings while others are accumulated within the tree. READ MORE

  2. 2. Assessment of tools for environmentally preferable procurement with a life cycle perspective : the case of acquisition in Swedish defence

    Author : Elisabeth Hochschorner; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Chemical engineering; Acquisition; Ecodesign tools; Life Cycle Assessment; LCA; MECO; Public procurement; Simplified; Kemiteknik; Chemical engineering; Kemiteknik;

    Abstract : Procurement in public and non-public organisations has the potential to influence product development towards more environmentally preferable products. In 2003, public procurement in Sweden was 28% of GDP. Different types of approaches can contribute some knowledge and thereby facilitate the choice of environmentally preferable products. READ MORE

  3. 3. Microgels as Carriers for Antimicrobial Peptides : Surface-bound microgels, and factors affecting peptide interactions

    Author : Lina Nyström; Martin Malmsten; Per Hansson; L. Andrew Lyon; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; NATURAL SCIENCES; MEDICAL AND HEALTH SCIENCES; MEDICAL AND HEALTH SCIENCES; Antimicrobial peptides; Biomaterial coating; Drug delivery; Host defence peptides; Microgels; pH-responsive; Surface-bound; Pharmaceutical Physical Chemistry; Farmaceutisk fysikalisk kemi;

    Abstract : With a growing number of multi-resistant bacteria against conventional antibiotics, there is an urgent need to identify new antimicrobial therapeutics. One example that has gained considerable interest is antimicrobial peptides (AMPs). READ MORE

  4. 4. Secondary plant metabolites as defence against herbivores and oxidative stress : Synthesis, isolation and biological evaluation

    Author : Katharina Bratt; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Chemistry; Kemi; Chemistry; Kemi; organisk kemi; Organic Chemistry;

    Abstract : In this thesis the isolation, synthesis and biological evaluation of natural defense compounds against herbivores or oxidative stress is discussed.The first part concerns the metabolites of platyphylloside ((5S)-5-hydroxy-1,7-bis-(4-hydroxyphenyl)-3-heptanone-5-O-β-D-glucopyranoside), a phenolic glucoside found in birch (Betula pendula) that possess digestibility inhibiting activity in herbivores. READ MORE

  5. 5. On Shaping Mechanical Properties of Lignocellulosic Materials by Benign Chemical Processing

    Author : Ran Duan; Magnus Norgren; Håkan Edlund; Mittuniversitetet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE