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The influence of different nutrient conditions on the production of toxins was studied in certain fishkilling haptophytes (e.g. Prymnesium parvum and Chrysochromulina polylepis). The toxicity was strongly influenced by the nutrient status of the medium, resulting in a significantly higher toxicity when grown under nutrient limited conditions compared to nutrient replete conditions. This occurred i

The water channel aquaporin-1 (AQP1) is considered as the molecular counterpart of the ultrasmall pore predicted by the three-pore model of fluid transport across the peritoneal membrane. However, the definitive proof of the implication of AQP1 in solute-free water transport, sodium sieving, and ultrafiltration (UF) during peritoneal dialysis (PD) is lacking, and the effects of its deletion on the

This paper is a direct continuation of a previous study that addressed the performance and design of a variable compression engine, the Alvar-Cycle Engine [1]. The earlier study was presented at the SAE International Conference and Exposition in Detroit during February 23- 26, 1998 as SAE paper 981027. In the present paper test results from a single cylinder prototype are reviewed and compared wit

The present study is a review of published investigations regarding the economy of ethanol production from lignocellulosic material The objective is to present relations between and tendencies observed in different cost estimates. The influence of plant capacity and overall product yield on the ethanol production cost is investigated, as well as variations in capital costs in the different process

Laparoscopic cholecystectomy (LC) is attempted in all our patients scheduled for cholecystectomy. The related standard radiologic procedures are preoperative ultrasonography (US) and preoperative cholangiography (PCA). In a retrospective study of 214 patients scheduled for LC over a 2-year period we have reviewed the radiologic and clinical records. Preoperative US revealed stones in the common bi

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

OBJECTIVE: Glucagon-like peptide-1 (GLP-1) has been proposed as a new treatment modality for type 2 diabetes. To circumvent the drawback of the short half-life of GLP-1, inhibitors of the GLP-1-degrading enzyme dipeptidyl peptidase IV (DPP IV) have been examined. Such inhibitors improve glucose tolerance in insulin-resistant rats and mice. In this study, we examined the 4-week effect of 1-[[[2-[(5

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