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A swirl stabilized gas turbine burner has been simulated in order to assess the effects of the fuel properties on spray dispersion and fuel-air mixing. The properties under consideration include fuel surface tension, viscosity and density. The turbulence of the gas phase is modeled applying the methodology of large eddy simulation whereas the dispersed liquid phase is described by Lagrangian parti
Reduction of the (root 5 x root 5)R27 degrees surface oxide on Pd(1 0 0) and Pd75Ag25(1 0 0) surfaces by H-2 has been studied using high-resolution photoelectron spectroscopy in situ at H-2 pressures 5 x 10(-9) mbar and 5 x 10(-8) mbar and selected temperatures in the range 30 degrees C to 170 degrees C. The reduction is slower on Pd75Ag25(1 0 0) compared to Pd(1 0 0) for all temperatures and pres
Attempted suicide is a risk factor for future suicidal behaviour, but understanding suicidality from the perspective of people who have experienced attempted suicide is limited. The aim of the study was to explore the lived experience of being suicidal and having made a suicide attempt, in order to identify possible implications for health care professionals. Semi-structured individual interviews
Optical second-harmonic generation can be a sensitive probe of atoms and molecules at a surface or interface. For this reason, the method was chosen to study surface charges. Our measurements have been limited by large fluctuations in the frequency-doubled light and the mean value of the signals did not give any consistent changes due to changes in the surface charge. A solid metal constituted the
This study aims to examine how Abkhazia and Georgia respectively understands the conflict of Abkhazia and how these understandings may affect any attempts to resolve the conflict. A qualitative content analysis method has been conducted based on information, statements and reports from Abkhazia’s respectively Georgia’s government pages, analyzed through the theoretical framework of intractable con
Integrating immigrants into the labor market is a challenge for the city of Malmö, impacting its performance to achieve Sustainable Development Goals related to Decent Jobs and Reduced Inequalities. This thesis explores the role of 3 social innovations in addressing this challenge, guided by the Multi-Level Perspective. The research explores unique approaches these enterprises apply to create empl
This study examines the relationship between various types of external support and the duration of intrastate conflicts. Between 1975 and 2017, the majority of conflicts received external support in one shape or form and the effects of internationalising conflicts through the provision of external support are multiple. Existing literature has found that external involvement generally prolongs the
The world has witnessed different forms of conflict and wars throughout history, resulting in unprecedented suffering for countless people (Danjibo and Akinkuotu, 2019). As of the end of 2023 conflicts, war, violence, human rights violations, and other events disturbing public order have resulted in an estimated 110 million people being displaced from their homes (UNHCR, 2023). This study uses an
Internal combustion engines are continuously developed towards decreased hazardous emissions and lower fuel consumption. The homogeneous charge compression ignition (HCCI) engine is a promising concept which combines the best features of the Diesel engine and the spark ignition (SI) engine. The efficiency is in the range of the Diesel engine and the emissions are low and comparable to the emission
This paper quantitatively analyzes the importance of taste versus health in food demand,as well as the effect on consumers’ experienced taste of the non-intrinsic value of healthy labels. Our analysis is based on taste experiments and Vickrey second price auctions on potato chips and bread. Our findings imply a large positive effect on demand for potato chips from higher taste scores: when consume
This study investigated the effect of experimental task on the processing of Central Swedish word accents. Both reaction times and response times were included as behavioural measures in a word accent/suffix (mis-)match paradigm. Results support the hypothesis that Accent 2 is associated with a heavier lexical functional load as compared to Accent 1. This effect was found to be relatively task-ind
Popular Abstract in Swedish Det övergripande syftet för den här avhandlingen var att identifiera miljöfaktorer som påverkar barn med ADHD, autism och Downs syndrom och deras förmåga att koncentrera sig i sin lärmiljö i skolan. Målet med den forskning som gjorts här är inte att avskriva några av de extraresurser som barnen ifråga behöver, utan i stället att ge förslag på hur man kan utforma deras lThe overall aim of this thesis was to identify environmental factors that affect children with ADHD, autism, and Down's syndrome and their ability to concentrate in their learning environment at school. The issue of this research is not to dismiss any of the additional resources these children are in need of; instead it is to suggest how to arrange learning environments in the most supportive way
Popular Abstract in Swedish I gröna växters kloroplaster finns ett s.k. sHsp-protein (small Heat shock protein) som betecknas Hsp21. Det tillhör en grupp av hjälpar-protein som kallas molekylära chaperoner. Chaperoner hjälper andra proteiner så att de inte klibbar ihop, aggregerar och blir inaktiva. Två vattenskyende ytor som sammanförs aggregerar. Genom att särskilt aggregerings-benägna (vattenskThe chloroplast-localized small heat shock protein (sHsp) Hsp21 belongs to the family of alpha-crystallin like sHsps which form large oligomeric structures and protect partly unfolded aggregation-prone proteins against aggregation. The main focus for this thesis has been on the highly conserved methionines in Hsp21. These methionine residues are situated on one side of an amphipathic alpha-helix.
Human cystatin C is a cysteine proteinase inhibitor belonging to the cystatin superfamily, which previously has been shown to inhibit bone resorption in bone organ culture. The aminoterminal segment, Arg8-Leu9-Val10-Gly11 (RLVG), of the single polypeptide chain of cystatin C constitutes an essential part of its inhibitory center. In the present study, the effect of benzyloxycarbonyl-Arg8-Leu9-Val1
Popular Abstract in Swedish Tillväxthormon (growth hormone, GH) har en central roll för reglering av tillväxt och ämnesomsättning hos däggdjur. Tillväxthormon frisätts från hypofysen, transporteras i blodet och utövar sina effekter på olika vävnader. Denna avhandling beskriver hur tillväxthormon påverkar ämnesomsättningen i fettceller från råtta, med särskild inriktning på de insulin-lika effekterGrowth hormone (GH) exerts growth-promoting and metabolic effects in mammals. The metabolic effects of GH in adipose tissue are insulin-antagonistic or insulin-like. Cells that just have been exposed to GH are insensitive to the hormone. This study addresses the question of how GH exerts its insulin-like metabolic effects, using primary rat adipocytes as a model system. It is shown that GH increas
In a genome-wide scan in Scandinavians, we found suggestive linkage between early-onset primary hypertension and a region on chromosome 2. The 2B-adrenoceptor gene, a candidate gene within this region, harbors a functional insertion/deletion (I/D) polymorphism of three glutamate residues. The aim of this study was to investigate if the DD genotype is associated with hypertension in Swedes. We perf
Nineteen pre-school children with language impairment participated in a computerized naming task. The naming procedure involved two conditions, one unprimed where the child had to name a colour picture appearing on the screen as fast as possible and one primed where the picture was preceded by an uncompleted sentence. Response times were significantly shorter in the primed condition compared to th
