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The significance of load modeling for voltage stability studies has been emphasized by several disturbances, which have taken place in the past years. They have shown that the loads in combination with other dynamics are among the main contributors of prolonged low voltage conditions, voltage instability and collapse in the power system. As a result of these disturbances new investigations have co
Baron Erland Nordenskiöld was born on July 19th, 1877. As a son of the great explorer Adolf Nordenskiöld he was predestined to follow the road of scientific pursuit. Moving from the field of the natural sciences to anthropology, Nordenskiöld took the chair as professor of "general and comparative ethnography" in the early 1920's. This position at the University of Gothenburg marked the beginning o
Published studies have reported conflicting results regarding the effects of cinnamon on glucose, lipids and insulin. To gain further insight into the metabolic effects of Cinnamomum cassia we performed randomized, double-blinded placebo-controlled study using euglycaemic-hyperinsulinaemic clamp.
As a consequence of agricultural intensification, large areas of non-crop habitat have been lost and farmland biodiversity has declined. Previous studies have shown that the extent of non-crop habitat influences farmland biodiversity, but the relative importance of different habitat types is less well known and the contribution of small incidental habitats to landscape-scale species richness is no
The intensification of agriculture during the second half of the twentieth century, has caused sever declines of farmland biodiversity, where loss of semi-natural habitats is one of the major drivers. To halt further loss of habitat and biodiversity, agri-environmental schemes (AES) are used to compensate farmers to use methods less harmful to the environment. In this thesis, I have investigated t
While impaired glucose tolerance diagnosed by the oral glucose tolerance test (OGTT) is a common trait in obese individuals, less is known about changes in levels of other metabolites. The aim was to reveal the complex alterations in metabolite levels provoked by an OGTT and its perturbation in obese individuals.
Plasma low-density lipoprotein cholesterol (LDL-C) has been associated with aortic stenosis in observational studies; however, randomized trials with cholesterol-lowering therapies in individuals with established valve disease have failed to demonstrate reduced disease progression.
Complement deficiency is associated with an increased risk for invasive infection and immune complex disease. Screening for identification of complement-deficient patients is essential and a new ELISA-based procedure for detection of complement deficiency is described. Molecular characterization of a complete C4 deficiency and of three phenotypic forms of properdin deficiency is also reported. The
The syntax of imperatives makes an interesting test case when investigating word order, verb raising and cliticisation across languages and their acquisition. This paper looks at language differentiation, i.e. language-specific parameter setting, in the imperative constructions of a bilingual child, "Katla", acquiring a verb-raising language, Icelandic, as well as English, not a verb-raising langu
Popular Abstract in English Plants harvest sunlight to fix air carbon dioxide into a form which is the fundamental source of energy for other organisms such as animals. The domestication of crop plants and traditional breeding practices has resulted in increased yield and nutritional value of crops. This comes at a cost of loss in genetic variability that is required by living organisms to adapt tPotato is one of the major food crops and its yield is severely affected by late blight disease caused by Phytophthora infestans. P. infestans has the ability to manipulate plant defence signalling by secreting effector molecules causing so called effector triggered susceptibility. Some plants can recognize these effectors via resistance proteins that reactivate plant defence and lead to effector
Previous studies indicate that elevated amylose content in products from rice, corn, and barley induce lower postprandial glycaemic responses and higher levels of resistant starch (RS). Consumption of slowly digestible carbohydrates and RS has been associated with health benefits such as decreased risk of diabetes and cardiovascular disease.
T1D is most common in children and young adults and is characterized by autoimmune destruction of insulin producing pancreatic beta cells, presence of certain risk genotypes such as HLA-DQB1, INS VNTR, PTPN22 and need of insulin for survival. In adults the same situation is often referred to as Latent Autoimmune Diabetes in Adults (LADA), with age at onset after 35 years and non-insulin requiring
Type 2 Diabetes (T2D) prevalence is growing to pandemic proportions worldwide. The link between genotype, environment and β-cell function is still being investigated. I have devoted the work presented in this thesis to attempt to elucidate the coupling of β-cell metabolism to insulin secretion and to look for casual mechanisms underlying metabolic alterations disturbing insulin secretion. In paper
