Sökning: "benzo[a]pyrene"

Visar resultat 21 - 25 av 43 avhandlingar innehållade ordet benzo[a]pyrene.

1. 21. Ecotoxicological studies on giant clams (Tridacnidae) : Environmental problems and future concerns

   Författare :Eva Blidberg; Michael Tedengren; David Klumpp; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; giant clam; larval; physiology; zooxanthellae; Biology; Biologi;

   Sammanfattning : Giant clams (Tridacnidae; Bivalvia) are described as important framework builders on coral reefs in the Indo-Pacific region. They are phototrophic as they are associated with primary producing zooxanthellae. Populations are low due to over-exploitation and most species are now endangered in many areas. LÄS MER

3. 22. Isolation and characterization of glutathione S-transferases from various animal sources

   Författare :Claes Guthenberg; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : In the present investigation several forms of glutathione S-transferase were found in preparations of rat liver, rat lung, adult human liver, fetal human liver and whole earthworms. Human placenta, however, appeared to contain only one form of glutathione S-transferase. LÄS MER

4. 23. Supernucleophilic Cob(I)alamin : analytical tool for genotoxic compounds in vitro and in vivo

   Författare :Johanna Haglund; Eddy Esmans; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; toxikologisk genetik; Genetic Toxicology;

   Sammanfattning : The low but still non-acceptable levels of exposure to genotoxic compounds emphasises the need for sensitive methods for searching, detecting, identifying and quantifying these compounds. Within the field of studies on genotoxic compounds, chemically quantitative work is required throughout. LÄS MER

5. 24. Laccases from New Fungal Sources and Some Promising Applications

   Författare :Laura Mendoza; Bioteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fungi; ligninases; modification of primary alcohols; modification of lignin; laccase applications; dye decolorization;

   Sammanfattning : Fungi are a group of organisms with the ability to produce different types of enzymes in order to get access to nutrients. Among the enzymes, oxidoreductases have the ability to degrade lignocellulosic material via an oxidative mechanism, facilitating the uptake of cellulosic material, which will be metabolized using other enzymes to provide the required nutrients to the fungi. LÄS MER

7. 25. Interaction between chemicals and melanin : Role in the aetiology, diagnosis and treatment of melanoma

   Författare :Amilcar Eliseu Rato da Silva Roberto; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutical biosciences; Farmaceutisk biovetenskap; Biopharmacy; Biofarmaci; Toxicology; toxikologi;

   Sammanfattning : The incidence of malignant melanoma has continually increased over the past decades and the prognosisis poor after dissemination of metastases. A conspicuous feature of melanocytes and melanoma cells is the production of melanin. LÄS MER