Search for dissertations about: "TaN"

Showing result 1 - 5 of 74 swedish dissertations containing the word TaN.

  1. 1. ADP regulation of insulin secretion and beta-cell apoptosis

    Author : Chanyuan Tan; Kardiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; P2Y; β-cell; ADP; insulin; apoptosis; autocrine; ectonucleotidase;

    Abstract : The aims of this dissertation were to investigate the effects of extracellular purines on insulin secretion, and apoptosis in mouse pancreatic islets and β-cells; to examine if high glucose and free fatty acids induces β-cell apoptosis via autocrine effects of ADP acting on the P2Y13 receptor; and to investigate the modulation of extracellular purines in vascular smooth muscle cells (VSMCs) through ectonucleotidase or ATP release under the effect of high glucose. The expression of the ADP receptors P2Y1 and P2Y13 were shown in both mouse pancreatic islets and isolated β-cells using real-time PCR quantification. READ MORE

  2. 2. High-Speed Analog-to-Digital Converters in CMOS

    Author : Siyu Tan; Integrerade elektroniksystem; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; A D converters; CMOS circuit design; ΔΣ ADC; high-speed ADC; Nyquist-rate ADC; oversampled ADC; SAR ADC; 5G;

    Abstract : The Analog to Digital (A/D) Converters (ADC) are vital components in high-performance radio devices. In the receiver end, the signal received by the analog front-end can not be directly analyzed by the digital core, thus requiring high-performance ADC circuits acting as bridges connecting the analog and digital domain. READ MORE

  3. 3. Posttranscriptional regulation of gene expression in retroviruses and human papillomaviruses

    Author : Wei Tan; Karolinska Institutet; Karolinska Institutet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; CTE; EIAV; HIV- 1; HPV; Rev; RRE; splice site; SRV- 1; 3 UTR Stockholm 1996 Doctoral Thesis;

    Abstract : Human immunodeficiency virus type I (HIV-1) is the prototype of complex retroviruses, whereas human papillomaviruses (HPVs) are nonenveloped, cricular double- stranded DNA viruses. The HIV- 1 Rev protein is a posttranscriptional regulator, which acts on its target RNA sequence termed the Rev-responsive element (RRE) to facilitate nuclear export of unspliced and partially spliced HIV-1 mRNAs, and to improve their stability and translatability. READ MORE

  4. 4. Modeling of drill string deflection for precision drilling in mines : theoretical and laboratory studies

    Author : Xiangchun Tan; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och Berganläggningsteknik;

    Abstract : .... READ MORE

  5. 5. Modelling of drill string buckling and tool indentation in rock drilling and fragmentation

    Author : Xiangchun Tan; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och Berganläggningsteknik;

    Abstract : In rock drilling, quality of drill hole and efficiency of drilling are two important aspects of great concern to drill operators and manufacturers. The first part of the thesis deals with the deviation of blast holes. READ MORE