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Delamination and spallation of thermal barrier coating (TBC) systems, used in hot parts of gas turbines, have been studied with respect to thermal fatigue. TBCs with and without pre-existing cracks were investigated. Thermal shock tests were performed until coating spallation. The experimental results revealed that the cracks primarily responsible for spallation grew horizontally, close to the int
Popular Abstract in Swedish Steloperation, fusion, i ryggen introducerades på 1910-talet som behandling vid tuberkulos med engagemeng av kotpelaren och sekundära smärtor/ deformitet. Senare applicerades tekniken på ryggfrakturer, skolioser och sedan 30-talet även på patienter med lumbala smärttillstånd med degenerativa förändringar. Smärtsam rörlighet eller överrörlighet i ledförbindelserna mellan71 consecutive posterolateral lumbar fusions without decompression or internal fixation were evaluated with a mean follow-up time of 3.5 (2-7) years. The diagnoses were spondylolysis-olisthesis in 43 cases, degenerative disc disease and/or facet joint arthrosis in 16 cases and pain post laminectomy/ decompression in 12 cases. 54/70 patients had a solid fusion. In the group with spondylolysis-olist
Popular Abstract in Swedish Dekompressionssjuka (DCS) är ett tillstånd som kan uppkomma när man utsätts för en hastig sänkning av omgivningstrycket. Bakgrunden till tillståndet är att vävnadslagrad gas frisätts till blodbanan och där på olika sätt kan ge upphov till symptom från lätta hudbesvär till livshotande påverkan på det centrala nervsystemet. Vid atmosfärstryck är gasinnehållet i kroppens vReductions in ambient pressure liberates gas in various tissues and can result in decompression illness. In this thesis the patophysiological implications of a blood gas interface resulting from decompression was investigated with reference to the influence on biochemical mediators of inflammation. In a series of experiments, animals and human subjects have been exposed to hyperbaric trauma of dif
A recent upsurge in rights talk has left a mark on many areas of law and social policy. Areas such as freedom of expression and hate speech that have traditionally been debated in terms of rights, as well as family law and the welfare of children, human trafficking and prostitution, national security and anti-terrorism legislation, economic policy and market development, to mention but a few, have
Popular Abstract in Swedish Denna avhandling består av fem fristående uppsatser som alla bidrar till den hälsoekonomiska litteraturen om socioekonomiska skillnader i hälsa och hälsorelaterat beteende. De två första uppsatserna, tillsammans med det tillhörande avsnittet i introduktionen, utgör en kompass för ojämlikhetsanalytiker i den snåriga diskussionen om hur vi bör mäta ojämlikhet i hälsa. I This thesis consists of five self-contained, yet related, research papers, which all contribute to the economic literature on socioeconomic differences in health and health related behavior. The first two papers provide a compass in the discussion of how to measure health inequality and, more specifically, how to adjust measures and concepts when moving from an unbounded income variable to a bound
A highly optimized Monte Carlo (MC) code package for simulating light transport is developed on the latest graphics processing unit (GPU) built for general-purpose computing from NVIDIA - the Fermi GPU. In biomedical optics, the MC method is the gold standard approach for simulating light transport in biological tissue, both due to its accuracy and its flexibility in modelling realistic, heterogen
An open European market for goods and services, including transport services, stimulates trade, global competitiveness and economic growth. At the same time, concerns about domestic job security, regulation compliance and the environment have sparked a debate. This report should be considered one of the first modest contributions to the mainly unexplored area of European freight deregulation. Our
In order to characterize the post-Svecofennian tectonothermal evolution of the Fennoscandian Shield, 40Ar-39Ar biotite and some 40Ar-39Ar muscovite geochronological data are reported from a total of 30 surface outcrop and 1000 m long borehole samples at Forsmark, central Sweden. The thirteen surface samples were collected across three branches of a major WNW to NW trending system of deformation zo
Conservation and restoration of fens and fen meadows often aim to reduce soil nutrients, mainly nitrogen (N) andphosphorus (P). The biogeochemistry of P has received much attention as P-enrichment is expected to negatively impact on species diversity in wetlands. It is known that N, sulphur (S) and hydrological conditions affect the biogeochemistry of P, yet their interactive effects on P-dynamics
Objective: The etiology of secretory otitis media (SOM) is multifactorial. The main factors discussed are infection and tuba[ dysfunction. This study aimed to detect poor tuba[ function and tympanic membrane pathology in young adults after extremely long-standing SOM. Methods: Thirty-four patients, 16-25 years old, with previous chronic SOM persisting at least 6 years (mean 11.2 years, range 6.2-1
Background. Although the topic of pain among older people has received increasing interest, little is still known about how pain is experienced or handled by those who no longer manage independently but depend on professionals for help with daily living. Developing pain management for older people requires such knowledge. Aim. To explore sense of self, sense of pain, daily living with pain, sense
Objective To describe the views of people, 65 years and over, receiving continuous public care and service, on prioritization and resource allocation in health care, in relation to gender, age, housing, health-related quality of life (QoL) and degree of activities of daily living (ADL) dependency. Background How older people receiving continuous public care and service view prioritization and res
Financial assurance is increasingly seen as a means to ensure orderly, clean and lasting closure of mines. Broadly interpreted, "closure" requires leaving viable ecosystems on mining lands that are compatible with a healthy environment and with human activities, that have low hazard, and that encompass measures to prevent ongoing pollution from the site in the long-term. Financial assurance encomp
As a consequence of heightened concern for the greenhouse effect, depleting oil reserves and skyrocketing oil prices, renewable fuels, Such as bioethanol, are becoming increasingly important. Cellulosic biomass like wood, agricultural residue and herbaceous material is a huge, cheap natural resource that can be used for ethanol production. Decreasing production costs through technological developm
BACKGROUND: To evaluate resource utilization and direct economic costs of care for patients treated with negative-pressure wound therapy (NPWT), using the Vacuum-Assisted Closure (V.A.C.) system, compared to standard moist wound therapy (MWT). METHODS: A total of 162 diabetic patients with post-amputation wounds (up to the trans-metatarsal level) entered a 16-week, randomized clinical trial. Patie
Popular Abstract in Swedish Sortering av bakteriedödande proteiner till behållarna i vita blodkroppar Vita blodkroppar har en livsviktig roll i det medfödda immunförsvaret som fagocyter, bakterieätare. Denna funktion, första linjens försvar, utövas av neutrofila granulocyter (neutrofiler), en speciell slags vita blodkroppar som är specialiserade på bakterieätning (fagocytos). När bakterier angripThe neutrophil granulocytes have a critical role in innate immunity in particular through phagocytosis of microorganisms. Their cytoplasmic granule subsets store digestive enzymes and antibiotic proteins that are released during this event. During the passage in the secretory pathway the granule proteins are retrieved from constitutive secretion to become sorted for storage. The aim of this thesis
Popular Abstract in Swedish Marsupialia (pungdjur) delas in i 280 nu levande arter, som är uppdelade i 19 familjer och sju ordningar. Släktskapet mellan de sju ordningarna har studerats på molekylär nivå på grundval av mitokondriella genom som sekvenserats i sin helhet. Pungdjur, jämte placentala (moderkaks-) däggdjur och kloakdjur, utgör de nu levande representanterna för klassen däggdjur. PungdjThe relationships of the mammalian infraclass Marsupialia have been investigated by phylogenetic analysis using completely sequenced mitochondrial genomes. The organisation and structure of the marsupial mitochondrial genomes deviates from the general mammalian structure. Several features, not known from other mammalian mitochondrial genomes have been shown to be present in all seven living marsup
Popular Abstract in Swedish Många nya läkemedel har en mycket låg löslighet i vatten vilket medför att det behövs stora mängder vatten (ibland 10 tals liter) för att lösa upp en tillräcklig mängd av läkemedlet. Detta gör det till exempel omöjligt att ge medicinen som en injektion direkt i blodet. En möjlig lösning på detta problem är att lösa upp läkemedlet i en s. k. mikroemulsion istället. En miMicroemulsions are thermodynamically stable, transparent solutions of water, oil and amphiphile(s). It is possible to incorporate large amounts of oil in microemulsions, which makes them interesting for use as a drug delivery vehicle for water insoluble drugs. A prerequisite for pharmaceutical use, however, is a low toxicity of the composition. The aim of this thesis has thus been to characterize
BACKGROUND: Solutions of iodine contrast media (CM) used for selective coronary arteriography (CA) should have minimal propensity to cause ventricular fibrillation (VF). Commonly used CM for CA are nonionic monomers or dimers. PURPOSE: To compare VF propensity of ready-to-use solutions of one nonionic dimer, iodixanol, and five nonionic monomers, iobitridol, iopamidol, iomeprol, iopromide, and iov
The object of this study was to investigate whether exposure of pipe-layers to thermal degradation products of diphenylmethane diisocyanate (MDI) could be assessed by analysing 4,4-methylenedianiline (MDA) in hydrolysed plasma and urine, and whether the genotype for N-acetylation affected these biomarker levels. Blood and urine samples were drawn from 30-pipe-layers who had been welding polyuretha
