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Using a cell model to describe a fibrous porous medium theoretical expressions ale deduced relating effective gas diffusivity to the volume fraction of the fibres. Cylindrical as well as band-shaped fibres are studied. The new models, which are based on solutions to the diffusion equation, agree well with existing correlations. The models are compared with experimental data for water vapour diffus

Popular Abstract in Swedish Syftet med den här avhandlingen har varit att förstå hur grupper av vi och dom skapas och består, framför allt inom utbildning och skola, och särskilt inom gymnasiala Komvux. I vardagligt tal menar människor oftast att dom är invandrare, medan vi är svenskar. Jag har visat att denna uppdelning, som sker nästan automatiskt, är alltför förenklad och svart-vit. Ett undersyThis thesis, set in an educational context (Swedish Komvux, high school adult education), deals with how groups of us and them are constructed, changed and reproduced. In order to understand the processes of us and them I have looked at the interconnections between gender, ethnicity and class utilising participant observations and semi-structured interviews. The main theoretical points of departu

Activated protein C (APC) is a serine proteinase that regulates blood coagulation. In plasma it is inhibited mainly by the protein C inhibitor (PCI). The plasma concentrations of APC-PCI complex is increased in hypercoagulative states such as deep venous thrombosis. Formation of the APC-PCI complex induces a drastic conformational change in PCI that exposes new epitopes (neoepitopes) on the molecu

The chloroplast grana margins of spinach thylakoids were isolated by sonication and aqueous-two-phase partitioning and their electron transport properties examined. Photosystem II and I electron transport activities were measured and compared to the appressed and non-appressed grana core and stroma lamellae, respectively, as well as to whole thylakoids. The results show that the PS II complexes in

The hypotheses of this investigation were based on attachment theory and Bowlby's conception of “internal working models”, supposed to consist of one mainly emotional (model-of-self) and one more conscious cognitive structure (model-of-others), which are assumed to operate at different temporal stages of information processing. Facial muscle reactions in individuals with positive versus negative i

Due to the scarcity of reliable antibodies, RBC typing for Doa and Dob is notoriously difficult. Inaccurate typing can place patients at risk for hemolytic transfusion reactions. The molecular basis of the DOA/DOB polymorphism is associated with three nucleotide changes:378 C>T, 624 T>C,and 793 A>G of DO. While the 378 C>T and 624 T>C are silent mutations, the 793A>G polymorphism in codon 265 enco

Artikeln diskuterar Per-Olof Remmares artikel "Föreningen Egna Hem i Motala - egnahemsrörelsens pionjär" (Folkets Historia nr 1 1998) samt går in på sambandet mellan egnahems- och rösträttsrörelserna i Östergötland. Föreningen Egna Hem (FEH) bildades 7 augusti 1892 vid Karlströms bruk i Kristbergs socken som på den tiden var en egen kommun. Sedermera inkorporerades Kristberg i Borensbergs kommun,

Background: The treatment goal of early rheumatoid arthritis is remission. This study reports remission rates in clinical practice using a cohort of patients with early rheumatoid arthritis. Methods: 698 patients with early rheumatoid arthritis were included. Mean age at inclusion was 58 years and mean disease duration was 6.4 months; 64% of the patients were women, 56% were positive for antibodie

The aim of this study was to derive simple risk-based equations to be used in fire safety design. Design values for the equations are derived from a specific target risk, usually described as the target reliability index β. Using the design values with accepted calculation methods would result in an accepted engineering solution to the problem. This approach is commonly used in structural engineer

A new approach in affinity separations was studied by partitioning of Cellulomonas fimi beta-mannanase (EC 3.2.1.78) containing a mannan-binding module in galactomannan/hydroxypropyl starch aqueous two-phase system. Comparison was made with a truncated version of C. fimi beta-mannanase which lacked the mannan-binding module. Results showed that affinity partitioning of the beta-mannanase was achie