Popular Abstract in Swedish Avhandlingen består av två delar. I den första delen används rent potentialteoretiska metoder för att studera hinderproblemet hörande till en likformigt elliptisk andra ordningens differentialoperator på divergensform. Reguljära punkter till hindren karakteriseras med det klassiska Wiener-kriteriet. Andra delen behandlar en klass av funktioner som uppfyller en viss intThe thesis consists of two parts. In the first part pure potential theoretic methods are employed to study the obstacle problem connected with a uniformly elliptic second-order differential operator in divergence form. Regular points of the obstacles are characterized by the classical Wiener criterion. The second part deals with a class of functions satisfying a certain integral inequality. A pr

The study considers relations in a group of 95 managers, 41 women and 54 men, between working climate of their units, their leadership styles in terms of their subordinates’ ratings of employee-centeredness, change-centeredness and production-centeredness, and their personality patterns according to the Spiral Aftereffect Technique (SAT). Eight managerial types were distinguished, based on low and

This article builds on the introduction to the concept of distributed economies (DE) by Johansson et al. [Johansson A, Kisch P, Mirata M. Distributed economies - a new engine for innovation. Journal of Cleaner Production, this issue] and takes the discussion further by reviewing examples of production systems that, due to certain characteristics, can be seen as illustrative DE elements. Through se

Human L68Q cystatin C is one of the known human amyloidogenic proteins. In its native state it is a monomer with alpha/beta structure. Experimental evidence suggests that L68Q variant associates into dimeric intermediates and that the dimers subsequently self-assemble to form amyloid deposits and insoluble fibrils. Details of the pathway of L68Q mutant amyloid formation are unclear; however, diffe

Popular Abstract in Swedish Solljusets effekter på abiotiska och bakteriella kolflöden i akvatiska system I denna avhandling behandlar jag solljusets effekter på organiskt material. Jag har analyserat hur solljus förändrar olika sorters löst organiskt kol och partikulärt organiskt kol. Vidare har jag utvärderat de indirekta effekterna som förändringar av löst organiskt kol har på bakterier. SlutlIn this Thesis, I studied some of the current aspects of organic matter photochemistry. I analyzed abiotic phototransformations of several types of dissolved (DOM) and particulate organic matter (POM). I also evaluated the effects of phototransformation of several types of DOM on bacteria. Finally, in a field experiment, I analyzed net effects of solar radiation on organic matter decomposition. DO

A new type of continuous, supermacroporous, monolithic, cryogel affinity adsorbent was developed, allowing specific fractionation and separation of human peripheral blood lymphocytes in a chromatographic format. The affinity adsorbent was used to design a novel cell separation strategy, which was based on the interaction of protein A from Staphylococcus aureus with cells bearing IgG antibodies on

The spreading of single styrene-acrylic latex particles on silicon oxide C surfaces was studied using atomic force microscopy (AFM). Three latexes with different glass transition temperature (Tg) were used and the effects of temperature, time and preparation method were investigated. Particle sizes and shape were measured with AFM and the contact angles were calculated. The observed rate for the s

The relationship between ergosterol content in ericaceous hair roots and ericoid mycorrhizal (ErM) colonization versus dark septate endophytic (DSE) hyphal colonization was examined in a dwarf shrub-dominated subarctic mire in Northern Sweden. Ergosterol content in hair roots did not correlate with ErM colonization in corresponding root samples. However, a significant positive relationship was fou

The reactive vascular-injuring amino acid homocysteine was previously shown to be increased in plasma in diabetic patients with clinical signs of nephropathy. In this study, plasma homocysteine was measured in type 1 diabetic patients with normoalbuminuria (n = 22), microalbuminuria (n = 40) and proteinuria (n = 14) in order to investigate whether plasma homocysteine levels are increased already a

The effects of small roundabouts on emissions and fuel consumption were evaluated using the “car-following” method in a before/after study. The results showed that at a roundabout replacing a signalised junction, CO emissions decreased by 29%, NOx emissions by 21%, and fuel consumption by 28%. At roundabouts, replacing yield regulated junctions, CO emissions increased on average by 4%, NOx emissio

Src homology 2 (SH2) domains recognize phosphotyrosine (pY)-containing sequences and thereby mediate their association to ligands. Bruton's tyrosine kinase (Btk) is a cytoplasmic protein tyrosine kinase, in which mutations cause a hereditary immunodeficiency disease, X-linked agammaglobulinemia (XLA). Mutations have been found in all Btk domains, including SH2, We have analyzed the structural and

Popular Abstract in Swedish Döva barns begreppsbildning i matematik Denna studie tar utgångspunkt i frågan varför många döva barn har svårt att lära sig matematik. Studiens syfte är att belysa döva barns begreppsbildning i ämnet matematik genom att beskriva hur några döva barn uttrycker sig och agerar på väg mot förståelse av två centrala matematiska begrepp, nämligen multiplikation med heltal ochThe question why deaf children have difficulties in learning mathematics is the basis of this study. The aim of the study is to illuminate deaf children’s concept formation in mathematics by describing how some deaf children express themselves and act on their way towards understanding two basic concepts, the concept of multiplication with whole numbers and the concept of length. Theories develope

A technique is presented here for evaluating the loss factor of a solid material element. This technique is commonly used in room acoustics to evaluate the reverberation time (RT) of rooms, and is therefore reviewed in this paper for applications in solid materials. The reverberation time is a quantity that describes the rate of decay of the sound level in the room, and is inversely proportional t