In this thesis, lipid biosynthesis is discussed focussing on the genes and enzymes involved in the final step of storage lipid synthesis, on the enzyme phospholipase A2, and on cell membrane lipid homeostasis. The investigation of lipid metabolism revealed that in Saccharomyces cerevisiae, there are four genes that are essential for the final step of storage lipid biosynthesis; ARE1, ARE2, DGA1, a

The interest in diffusion imaging with nuclear magnetic resonance techniques has increased during the last few years. The main reason is the possibility of early diagnosis of acute ischaemic stroke, at a time when conventional MR techniques and computerised tomography fail. The purpose of this study was to develop and evaluate methods for the measurement of water self-diffusion in vivo using magne

Metabolomics is a rapidly growing research field. It aims for quantification of all the metabolites in a biological sample such as plasma, saliva, cerebrospinal fluid or cells. Because the metabolite levels in a biological sample are the end result of the regulatory processes in cells, metabolomics is a very powerful approach for characterisation of phenotypes. Metabolomics has been used to find d

Abstract in UndeterminedRenewable energy flows are very large in comparison with humankind’s use of energy. Therefore, in principle, all our energy needs, both now and into the future, can be met by energy from renewable sources. Technologies exist that convert renewable energy flows to modern energy carriers or directly into desired energy services. Technological development during the last decad

The human genome, in common with all mammalian genomes, carries a high load of inheritable retroviral sequences. We have identified and characterized a novel family of these endogenous retroviruses and have named this family HERV-F as based on the primer binding sites of three members. The HERV-Fs are C-type endogenous retroviruses that have unique gag, pol and env regions that are, based on phylo

It is generally assumed that whereas referential nominal phrases are at least of DP size, predicative nominal phrases are structurally smaller. However, this paper argues that at least in Scandinavian, predicative nominal phrases as well as referential nominal phrases can be bigger than, equal to, or smaller than DP. Hence, the only consistent difference between nominal arguments and nominal predi

Various applications need an electric machine that can provide a wide range of torque over a broad range of rotation speed and temperature. Dynamic testing, where the machine acceleration is compared to the deceleration slope, allows to scan through a wide scope of operation points with insignificant temperature rise. Therefore, the goal of this paper is to analyse the consistency of the rapid exp

Results related to time-mean pressure distributions around a circular cylinder in cross-flow are presented and discussed briefly with special emphasis on the effect of relative pressure hole size and the position of separation. Experiments cover Reynolds numbers from $0.2 imes 10^3$ to $2.1 imes 10^5$.

Abstract The present work investigates i) the occurrence and removal of pharmaceuticals at Swedish WWTPs, and ii) potential causes for differences in the removal efficiency of pharmaceuticals at wastewater treatment plants. Particular attention is directed at the biological treatment and the pharmaceutical removal capacity per unit biomass of activated sludges and carrier biofilms of different or