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The spectra of symbiotic stars are shown to frequently contain numerous fluorescence lines caused by Photo-excitation by Accidental Resonance (PAR). So far, most work involving fluorescence in stellar spectra has been assigned to the search of new PAR mechanisms, which can explain the presence of certain emission lines. This is taken a step further as the PAR pumped emission lines are analyzed to

The overall aim of this study was to develop and evaluate a measurement system for computed radiography (CR) and Picture Archiving and Communication Systems (PACS), permitting measurements of long distances and angles in and between related images. The developed measurement system, which was based on the QUESTOR Precision Radiography (QPR) system, was applied to the weight-bearing knee with specia

The thesis deals with plasticity in terms of neurotransmitter expression and survival of neurons in the adult enteric nervous system (ENS). Several motility disorders have been suggested to originate in developmental defects, neurodegeneration, or insufficient innervation by the ENS. Normal distribution of the interstitial cells of Cajal (ICC), found in close relationship to enteric neurons, is al

In this work, cloud and fog droplet formation was studied in three joint field experiments. The instrument, the droplet aerosol analyser (DAA), has also been further developed and verified as part of this work. The DAA is an instrument especially developed for studies of cloud and fog droplet formation and growth. It measures the ambient size of individual droplets and interstitial particles in a

Transforming growth factor-beta (TGF-b) is a well-characterised growth regulatory factor, which acts on most cell types. This thesis has focused on the regulatory roles of TGF-b on normal lymphocytes. One interesting finding is that TGF-b acts both costimulatory and inhibitory on T-lymphocytes. The costimulatory effect depends on the presence of monocytes and is mediated by these cells. Furthermor

Linomide is a potent immunomodulator that has been shown to inhibit autoimmunity in several animal models of autoimmune disease. We have approached the cellular and molecular mechanism of Linomide by investigating its effect on thymocyte development and its capacity to modulate the expression of activation markers on antigen presenting cells (APCs). We found that Linomide treatment of mice resulte

There is a persisting controversy concerning the definition, etiology and pathogenesis of Barrett's esophagus. The dramatic and parallel increase in the incidence of esophageal and junctional adenocarcinoma over the past decades justifies an evaluation of the pathophysiology of premalignant metaplastic changes of the esophagus and the gastroesophageal junction. Patients were evaluated with upper G

Long-term studies of birds play an important role in the understanding of quantitative traits in natural populations. The relative ease by which individual birds can be monitored and caught in the wild enable us collect detailed information from individuals throughout their life time, sometimes from several generations in a population. In this thesis I describe the utilization of a great reed warb

This chapter deals with Italian Barnabites and German Jesuits working as missionaries in the Nordic countries and the ideals of clerical masculinity that they represented. The Barnabites were important in the initial phase of the Catholic missionary activity in the 1860s and 1870s, whereas the Jesuits, ostensibly the most fervent defenders of ultramontane confessionalism, held a dominant position

Microvascular surgery enables free tissue flaps to cover tissue defects, e.g. after trauma and malignancies. Although major improvements in techniques have been made, problems with poor tissue circulation and thrombus formation still exist. The aim of this thesis was to investigate the effects of hemodilution on tissue blood flow and thrombus formation in an animal model. In isovolemic hemodilutio

The thesis investigated clinical, neuroimaging and prognostic features in lacunar infarction. The studies were based on a series of 100 consequtive patients with a first-ever stroke and a lacunar syndrome investigated with CT, Gd-DTPA enhanced MRI, and with respect to large vessel disease and cardioembolic sources. the patients were followed for a mean of 4 years. MRI was repeated one year after s

Restyling Factual TV is about understanding genres in relation to each other and in relation to popular audiences. It takes as a starting point the idea that factual television is being restyled, that various kinds of news, current affairs, documentary and popular factual genres are part of a turbulent time in broadcasting. The boundaries between fact and fiction have been pushed to the limits in

The autoimmune disease Systemic Lupus Erythematosus is associated with hereditary deficieny of early components from the classical pathway of complement activation, but not with deficiency of complement component C3 or of the alternative pathway components. The classical pathway is involved in elimination of pathological immune complexes from the circulation by transport via complement receptor ty

The best mode of delivery for fetuses with intrauterine growth restriction (IUGR) and umbilical artery (UA) blood flow changes is not well elucidated. Uterine artery, fetal UA, middle cerebral artery (MCA), and venous blood flow changes during uterine contractions during an oxytocin challenge test (OCT) have not been observed systemically. AIMS: To evaluate outcome in IUGR with UA blood flow chang

In Australia a national public/private telematics framework has been established, which is administered by Transport Certification Australia (TCA). The first application was the Intelligent Access Program (IAP), which has enabled several road transport reforms by managing infrastructure risks associated with the operation of extra heavy vehicle configurations. The paper uses the IAP to demonstrate