Search for dissertations about: "jia"

Showing result 1 - 5 of 78 swedish dissertations containing the word jia.

  2. 1. Crystallographic studies of transaldolase : implications for the enzymatic mechanism and the evolution of class I aldolases

    Author : Jia Jia; Karolinska Institutet; Karolinska Institutet; []
    Keywords : transaldolase; aldolase; Schiff-base intermediate; protein crystallography; site directed mutagenesis; catalytic mechanism; circular permutation.;

    Abstract : Transaldolase catalyzes the reversible transfer of a dihydroxyacetone moiety from a ketose donor to an aldose acceptor by forming a Schiff-base intermediate between a Iysine residue and dihydroxyacetone. It belongs to the class I aldolase family. READ MORE

  4. 2. Colon cancer specific cytochrome P450 2W1 : polymorphism, membrane topology and endogenous roles in development

    Author : Jia Guo; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Cytochrome P450 2W1 (CYP2W1) belongs to a family of drug metabolizing monooxygenases with an unidentified yet endogenous function. CYP2W1 expression pattern has characteristic features of oncofetal genes. Previous studies have shown significant levels of CYP2W1 protein in 30% of human colon cancers and in 50% of corresponding liver metastases. READ MORE

  5. 3. Climate-friendly rice - characterisation of rice varieties associated with low-methane emissions and improved bioenergy properties

    Author : Jia Hu; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Paddy rice cultivation contributes to global warming by emitting methane into the atmosphere. The aims of the work presented in this thesis were to breed climatefriendly rice varieties, to increase rice straw utilisation to reduce the impact of rice cultivation on the environment. READ MORE

  6. 4. High Frequency Model of Electrified Railway Propulsion System for EMC Analysis

    Author : Kelin Jia; Rajeev Thottappillil; Hans Bängtsson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electromagnetic compatibility; railway; propulsion system; multitransmission line; ac motor modeling; vector fitting; fast transient;

    Abstract : A model of the electrified railway propulsion system working in a wide frequency range is studied in this thesis. The high frequency modeling is the first stage to study and predict the Electromagnetic compatibility (EMC) problems in the electrified railway propulsion system, which are safety and reliability issues of high concern. READ MORE

  7. 5. Post-translational modifications of proteins in human breast cancer : proteomics studies of phosphorylation and nitration and implication of these PTMs in tumorigenesis

    Author : Min Jia; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Breast cancer is the most common cancer in women. Even though improvements in diagnosis and treatment of breast cancer have been made, it is still the most common cause of cancer death in women. There is a great need to find biomarkers for early detection of the disease and novel drug targets to fight the cancer. READ MORE