Search for dissertations about: "PA"

Showing result 11 - 15 of 488 swedish dissertations containing the word PA.

  2. 11. Epigenetic regulation of gene expression in the vascular endothelium

    Author : Mia Magnusson; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; epigenetics; histone acetylation; DNA methylation; t-PA; PLAT; HUVECs; valproic acid; gene expression; enhancers;

    Abstract : Epigenetic mechanisms, such as DNA methylation and histone modifications, constitute one way for a cell or an organism to respond to changes in the surrounding environment. While histone modifications are recognized to be quite dynamic, DNA methylation has been considered a more stable, or long-term, modification. READ MORE

  4. 12. Statistical Analysis of Hardware Impairments in Communication Systems

    Author : Mohammad Hossein Moghaddam; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hardware impairments; distortion analysis; PA nonlinearity; phase noise; spectral analysis; pulse shaping and matched filter; IQI;

    Abstract : This thesis delves into the study of hardware impairments, the inevitable limiting factors in radio frequency (RF) communication systems, and their substantial influence on system performance. It addresses the incongruity between the often stringent requirements imposed by standards and the innate imperfections of analog circuits present in real-world RF electronics. READ MORE

  5. 13. Cardioprotective treatment strategies

    Author : Jesper vanderPals; Kardiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ADC-1004; apyrase; Cardioprotection; ischemia reperfusion; hypothermia; t-PA;

    Abstract : In myocardial ischemia-reperfusion (I/R) injury, complement activation, tissue plasminogen activator (t-PA) and extracellular adenosine triphosphate (ATP) release contribute to myocardial injury. ATP is degraded into adenosine by the enzyme apyrase, and adenosine possesses cardioprotective properties. READ MORE

  6. 14. Pharmacological stimulation of endothelial function and long-term impact of hypertension in man

    Author : Ott Saluveer; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; t-PA; hypertension; fibrinolysis; endothelial function; valproic acid; histone deacetylase inhibitor; atorvastatin;

    Abstract : Background: Ischemic heart disease is a major cause of death globally. Rupture of a coronary atherosclerotic plaque with occluding thrombus formation is the main cause of myocardial ischemia and infarction. READ MORE

  7. 15. Coronary Reactive Hyperemia

    Author : Göran Olivecrona; Kardiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Kardiovaskulära systemet; Cardiovascular system; Medicin människa och djur ; Medicine human and vertebrates ; t-PA; P2Y1-receptors; Hypothermia; Coronary; Reactive hyperemia;

    Abstract : Introduction: The mechanism of post ischemic reactive hyperemia is still unknown but now thought to be multifactorial and perhaps involving purinergic signalling. Purines such as ATP and ADP have recently been discovered to play a vital role in the regulation of vascular tone. READ MORE