Search for dissertations about: "DST"

Showing result 11 - 15 of 25 swedish dissertations containing the word DST.

  2. 11. Solar Wind and Geomagnetic Activity - Predictions Using Neural Networks

    Author : Hans Gleisner; Astronomi - Genomgår omorganisation; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Geophysics; kosmisk kemi; rymdvetenskap; magnetosphere; solar wind; space weather; geomagnetic activity; geomagnetism; ring current; auroral electrojet; neural networks; forecasting; Astronomy; space research; Astronomi; cosmic chemistry; physical oceanography; meteorology; Geofysik; fysisk oceanografi; meteorologi; Fysicumarkivet A:2000:Gleisner;

    Abstract : This thesis shows how artificial neural networks (ANNs) can be applied to predict geomagnetic activity from solar-wind data. It introduces and summarizes five papers where development of ANN models are reported, and where predictions of geomagnetic activity are discussed. READ MORE

  4. 12. Towards individualised treatment of tuberculosis

    Author : Katarina Niward; Thomas Schön; Jakob Paues; Judith Bruchfeld; Maria Lerm; Åse B. Andersen; Linköpings universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : Each year, around 10 million of individuals develop active tuberculosis (TB). Worldwide, TB is the leading cause of death from an infectious agent surpassing both malaria and HIV. READ MORE

  5. 13. Delirium in the elderly. The construction of a rating scale and aspects on risk factors and treatment

    Author : Barbro Robertsson; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; delirium; confusional state; elderly; dementia; regional brain syndrome; HPA axis; cortisol; remoxipride; rating scale;

    Abstract : The rates of delirium were studied in patients with four different dementia disorders and also in patients with different regional brain syndromes. The function of the stress-regulating system was compared between demented patients with delirium and those without. READ MORE

  6. 14. Diagnosing hyper- and hypocortisolism using saliva samples : pitfalls and how to avoid them

    Author : Nils Bäcklund; Per Dahlqvist; Göran Brattsand; Tommy Olsson; Elisabeth Aardal; Kerstin Landin-Wilhelmsen; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cushing s syndrome; Adrenal Insufficiency; Salivary cortisol; Salivary cortisone; Reference intervals; Diagnostic accuracy; Error sources; invärtesmedicin; Internal Medicine; medicinsk biokemi; Medical Biochemistry;

    Abstract : Background: Cushing's syndrome (CS) is caused by high cortisol secretion whereas insufficient cortisol secretion is called adrenal insufficiency (AI). Both are rare diseases with substantial diagnostic delay, and high morbidity and mortality even though effective treatment is available. READ MORE

  7. 15. Numerical study of dense particle flows under planar shear

    Author : Junhao Dong; Beräkningskemi; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dense suspension; granular flow; shear thickening; oscillatory flow; rheology; Discrete element method;

    Abstract : In this thesis I conducted numerical simulations to study the flow behavior of dense particle flows composed of hard particles under planar shear using the discrete element method. The simulations were carried out in two dimensional systems, where the particles are modelled as circular discs. The discs are non-Brownian and neutrally buoyant. READ MORE