Popular Abstract in Swedish Genom att använda en fettsyra, oktansyra, som modelsubstans har fouling pga adsorption inne i membranmatrisen studerats. Det har visats att mycket lågmolekylära hydrofoba föreningar kan ha en förödande inverkan på ett membrans flux, även om retentionen för dem är mindre än 10%. En teori om att foulingen beror på kapillärkondensation och hur detta skulle kunna användas fA study of fouling of ultrafiltration membranes due to adsorption of a fatty acid in the membrane matrix has been done. Octanoic acid was used as a model substance. It has been shown that a low-molecular-weight hydrophobic solute can have detrimental effects on the flux of hydrophobic ultrafiltration membranes even though the size of the solute is much smaller than the cut-off of the membrane and

That the Church of Norway has now adopted gender equality as its policy, is a new situation in a historical perspective, and is the result of a long process within the framework of the state church system. In this context, the way in which the Storting (the Norwegian parliament) dealt with the issue of admitting women to clerical offices in the 1930s was important. The purpose of this thesis has b

Head and neck squamous cell carcinomas (HNSCC) are often characterized by complex karyotypic changes, and a substantial proportion of the reported tumors have shown intratumor heterogeneity in the form of cytogenetically related (40%) or unrelated clones (20%). In order to study intratumor heterogeneity and to distinguish the temporal order of chromosome rearrangements in these tumors, two or more

hree different types of bituminous coal were subjected to microbial desulphurization in bench scale slurry reactors. Consecutive treatment with two microorganism species was used to test if different sulphur forms could be removed. The treatment started with the bacterium Thiobacillus ferrooxidans followed by the archaeon Acidianus brierleyi. Consecutive treatment did not desulphurize the three te

Popular Abstract in Swedish Huntingtons sjukdom (HS) är en ärftlig sjukdom som i första hand drabbar hjärnan. De områden som främst angrips är hjärnbarken, där till exempel människans kognitiva förmågor, personlighet och planeringsförmåga finns samt ett område inne i hjärnvävnaden som kallas striatum, där våra rörelser kontrolleras och korrigeras. Sjukdomen visar sig initialt oftast med diffusa syHuntington's disease (HD) is a neurodegenerative disease caused by a CAG-triplet expansion in the gene encoding the protein huntingtin. The disease typically starts in mid-life and progresses for 15-20 years. To date no effective treatment is available for curing the disease. HD primarily affects the striatum, cerebral cortex and hypothalamus. At later stages cell death is evident in the striatum

Due to variabilities in the material, the geometrical configuration, or the manufacturing properties, a structure that is designed to be spatially periodic cannot be exactly periodic. The presence of small irregularities in a nearly periodic structure may influence the propagation of the vibration field, the field being localised. A number of papers have addressed such localisation phenomena. This

Transplants of fetal ventral mesencephalic tissue are known to contain a mixture of two major dopamine (DA) neuron types: the A9 neurons of the substantia nigra pars compacta (SNpc) and the A10 neurons of the ventral tegmental area (VTA). Previous studies have suggested that these two DA neuron types may differ in their growth characteristics, but, because of technical limitations, it has so far b

Schemes for the biosynthetic steps in the formation of the blood group active glycoproteins in secretions postulate that α-Image -fucosyltransferases specified by the Image and Image genes control the addition of Image -fucose to different acceptor sites in a precursor substance to give H, Lea and Leb serologically active structures. 1,2. The presence of 2-, 3- and 4-α-Image -fucosyl-transferases

We have investigated the spin polarization of electrons and holes in InAs/GaSb broken-gap quantum wells under nonequilibrium conditions when a dc electric field is applied parallel to interfaces. The existence of a nonzero asymmetric part of the quasiparticle distribution function caused by the dc current and the spin-split of the electron-hole hybridized states generates a finite spin polarizatio

We analysed 57 years’ uninterrupted trapping data of autumn migrating Ruddy Turnstones Arenaria interpres at Ottenby, south-eastern Sweden (1593 full-grown birds in 1947–2003; of them 574 birds with standardised trapping in 1976–2003). Numbers trapped decreased significantly for both adult and juvenile birds in the total dataset (–0.34 and –0.57 ringed birds per year), and for juveniles in the 197

To explore the natural course of beta cell function in recent onset diabetes, a subgroup (n = 157) of all incident cases (n = 879) 15-34 years old. 1992-1993 in Sweden. and with positivity for at least one autoantibody of islet cell antibodies (ICA), glutamic acid decarboxylase antibodies (GADA) or tyrosine phosphatase antibodies (1A-2A) were followed prospectively thr the first four years with an

BACKGROUND: The risk of ischaemic events in asymptomatic intracranial atherosclerosis is unknown. OBJECTIVE: To follow up patients with asymptomatic atherosclerotic middle cerebral artery stenosis (MCAS) to evaluate the long term stroke risk in its territory. METHODS: Consecutive white patients with asymptomatic atherosclerotic MCAS were enrolled. Patients with MCAS of possible or proven non-ather

Osteosynthesis (OS) and hemiarthroplasty (RA) are the commonest treatments for displaced cervical hip fractures in the elderly, but there is no consensus as to which is better. In this prospective matched-pair study we compared these methods as regards functional outcome. In 1989-1996, using the same standardized forms, all displaced cervical hip fractures were prospectively registered in the univ