Sökning: "DNA mixtures"

Visar resultat 21 - 25 av 26 avhandlingar innehållade orden DNA mixtures.

  1. 21. Toxicological and Chemical Characterization of Organic Pollutants with Potential to Adversely Affect Fish

    Författare :Henrik Sundberg; Lennart Balk; Dag Broman; Tracy Collier; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Toxicology; Toxikologi;

    Sammanfattning : Several investigations have described adverse effects in fish inhabiting polluted areas, though the causative, or aetiologic compounds have not been substantiated. Since environmental pollutants exist as complex mixtures, reliable risk estimations are difficult to obtain. LÄS MER

  3. 22. Trametes versicolor as biodegrader and biocatalyst when using lignocellulose for ethanol production

    Författare :Marie Holmgren; Anita Sellstedt; Mohammad Taherzadeh; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lignocellulose; 5-carbon; 6-carbon; Trametes versicolor; xylose reductase; xylitol dehydrogenase; xylulokinase; phenolics; levulinic acid; HMF; furfural; biodegrader; biocatalyst; pretreatment; xylanase; beta-glucosidase;

    Sammanfattning : Energy consumption has increased rapidly during the last century due to population growth and greater industrialization. Lignocellulosic-based biofuels are being developed as alternatives to fossil fuels. For many years the question of how 5-carbon sugars in biomass are utilized in nature has been a vexed one. LÄS MER

  4. 23. Phase Behavior and Solution Properties of Aqueous Polyion-Surfactant Ion Systems

    Författare :John Janiak; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polymer-surfactant association; complex salt; nonionic surfactant; poly acrylic acid ; poly methacrylic acid ; copolymer; polymeric counterion; decyl betainate; phase behavior; solubilization; mixed micelle; hydrolysis; release; liquid crystal; nanoparticles; thermosresponsive; C12E8; C12E5;

    Sammanfattning : Polyelectrolytes and oppositely charged surfactants interact through attractive electrostatic forces, which in many cases lead to phase separation already at low total concentrations. During the past 10-15 years investigations of these systems have been simplified through the use of complex salts that consist of surfactants with polymeric counterions in a 1:1 charge stoichiometry (no excess simple counterions present). LÄS MER

  5. 24. Experimental gene therapy with special reference to plasma cell tumors

    Författare :M Sirac Dilber; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Gene therapy may open new perspectives in the treatment of numerous hematopoietic and metabolic disorders. Particularly, hematopoietic cells are very attractive targets for retroviral mediated gene transfer. LÄS MER

  7. 25. Toxicity of smokeless tobacco in human oral epithelium with emphasis on carcinogen metabolism and regulation of programmed cell death

    Författare :Martin Vondracek; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The oral mucosa is globally a common site for cancer development. Primary risk factors include tobacco smoking and alcohol consumption whereas the contribution from usage of smokeless tobacco remains debated. LÄS MER