Search for dissertations about: "nuclear extracts"

Showing result 1 - 5 of 31 swedish dissertations containing the words nuclear extracts.

  2. 1. Diluent and Solvent Effects in Liquid-Liquid Extraction Systems based on bis-triazine-bipyrididine (BTBP)-class Ligands

    Author : Elin Löfström Engdahl; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Used nuclear fuel; Density; Solvent; Extraction vs. time; BTBP; GANEX; Liquid-Liquid Extraction; Interfacial tension; Diluent;

    Abstract : Used nuclear fuel taken directly from a reactor is radiotoxic for mankind and its environment for a long time. One of the major contributions to the long time radiotoxicity is the presence of a group of elements called the actinides. READ MORE

  4. 2. Transcriptional regulation of the latent membrane protein 1 gene by Epstein-Barr virus nuclear antigen 2

    Author : Lars Palmqvist; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Epstein-Barr virus; B-cell; transformation; LMP1; EBNA2; transcription; phosphorylation; histone acetylation;

    Abstract : The Epstein-Barr virus (EBV) is a ubiquitous human herpes virus, which infects B-cells. This leads to a life-long latent infection, which in most cases is non-pathogenic. However, EBV is etiologically associated with several human malignancies, including endemic Burkitt's lymphoma, nasopharyngeal carcinoma and post-transplant lymphoma. READ MORE

  5. 3. Studies on the mechanism of regulation of bile acid synthesis in humans with some aspects on genetic factors

    Author : Anna Abrahamsson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Bile acid synthesis; CYP7A1; CYP8B1; nuclear factors; primary human hepatocytes; regulation; polymorphism;

    Abstract : In the present investigation we studied human bile acid synthesis and its regulation both in vivo and in vitro and also evaluated a possible influence of polymorphisms in the CYP7A1 and CYP8B1 genes on bile acid synthesis in vivo. The following observations were made: · Primary human hepatocytes cultured on matrigel under serum-free conditions produced bile acids consistent with the pattern in vivo, i. READ MORE

  6. 4. Phylogenies and Secondary Chemistry in Arnica (Asteraceae)

    Author : Catarina Ekenäs; Katarina Andreasen; Anders Backlund; Lynn Bohs; Uppsala universitet; []
    Keywords : Biology; phylogeny; ITS; ETS; RPB2; sesquiterpene lactones; PCA; bioassay; NF-κB; neutrophil; chloroplast; Biologi; Arnica; Asteraceae;

    Abstract : The genus Arnica (Asteraceae) was investigated for phylogenetic relationships and sesquiterpene lactone (STL) content with the aims to trace the evolutionary history of the genus and to investigate possible congruencies between DNA sequence data, secondary chemistry, and biological activity. Complex evolutionary patterns in Arnica are evident from phylogenetic analyses of chloroplast regions (the rpl16 and rps16 introns and the psbA–trnH, ycf4–cemA, and trnT–L spacers), nuclear ribosomal regions (the internal and external transcribed spacers) and the nuclear low-copy DNA region coding for the second largest subunit of RNA polymerase II (RPB2) between exons 17 and 23. READ MORE

  7. 5. Regulation of Adenoviral Gene Expression by the L4-33K and L4-22K Proteins

    Author : Ellenor Backström; Göran Akusjärvi; Francoise Raffalli-Mathieu; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Virology; Virologi; Medical Virology; Medicinsk virologi;

    Abstract : The splicing pattern during an adenovirus infection is shifted at the late phase towards using weaker splice sites, splicing out larger introns. Splicing of weak 3´ splice sites usually requires recognition of the 3´AG dinucleotide before the first catalytic step of splicing. READ MORE