Sökning: "Björk"

Visar resultat 1 - 5 av 233 avhandlingar innehållade ordet Björk.

  1. 1. Electron Transport in Semiconductor Nanowires

    Författare :Mikael Björk; Fasta tillståndets fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; heterostructures; single electron transistors; resonant tunneling; quantum dots; weak antilocalization; Halvledarfysik; field effect transistors; Semiconductory physics; Fysicumarkivet A:2004:Björk; Low-dimensional structures; nanowires; chemical beam epitaxy;

    Sammanfattning : In this thesis, semiconductor nanowires are studied from the point of view of growth and electrical properties. The growth of nanowires is done by chemical beam epitaxy (CBE), an ultra-high vacuum technique allowing a precise control of precursor deposition and low growth rates. LÄS MER

  2. 2. Aspects of Vitamin D : Prevalence of deficiency and impact on musculoskeletal parameters

    Författare :Anne Björk; Östen Ljunggren; Gunnar Johansson; Andreas Kindmark; Anna Spångeus; Uppsala universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Vitamin D; CYP2R1; Vitamin D receptor Gene; Polymorphisms; Muscle Strength; Endokrinologi och Diabetologi; Endocrinology and Diabetology;

    Sammanfattning : Vitamin D is central in calcium turnover, and adequate levels are important for skeletal health. It is not clear how large contributions from food and sunlight are in Swedish primary care patients, considering the low radiation of UVB in Sweden and fortification of some foods, and whether differences exist between patients of immigrant and Swedish origin. LÄS MER

  3. 3. Congenital Heart Disease, Type 1 and Type 2 Diabetes Mellitus

    Författare :Anna Björk; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Congenital Heart Disease; Diabetes Mellitus; Type 1 Diabetes Mellitus; Type 2 Diabetes Mellitus; Mortality; Morbidity;

    Sammanfattning : Worldwide, 1% of all live born children are born with a congenital heart disease (CHD) and currently >95% reach adulthood due to better diagnostics and medical care. At the same time, Diabetes Mellitus (DM), type 1 (T1DM) and type 2 (T2DM), is increasing worldwide. LÄS MER

  4. 4. Immunopathogenic mechanisms in primary Sjögren’s syndrome

    Författare :Albin Björk; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Primary Sjögren’s syndrome is a systemic autoimmune disease primarily affecting salivary and lacrimal glands, but patients may also have other organ involvement. Development of Sjögren’s syndrome has been associated with genetic polymorphisms and aberrances in innate and adaptive immunity, which include abnormal B cell functions with autoantibody production, and increased activity of the interferon (IFN) system. LÄS MER

  5. 5. Stödjande gemenskap : Utveckling och utvärdering av en intervention för livsstilsförändring bland vuxna med adhd

    Författare :Annette Björk; Erika Wall; Stig Vinberg; Ove Hellzén; Ulf Isaksson; Mittuniversitetet; []

    Sammanfattning : The entire project revolves around a lifestyle intervention that has been developed, implemented and evaluated. The intervention included adults with ADHD and comorbid mental illness. LÄS MER