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Catalytic partial oxidation of methane (CPOM) is an energy-efficient alternative to steam reforming, the currently prevailing method for energy production from natural gas. Hulteberg Chemistry & Engineering AB has developed a catalyst for the partial oxidation of methane into syngas, for use in solid oxide fuel cells. In its current form, the catalyst rapidly deactivates, causing increased mat
Understanding the pH sensitivity of proteins and enzymes across intracellular compartments is crucial for fundamental research. Lizatović et al. [1] aimed to design a peptide incorporating a specific amino acid to form a hexamer structure and lacking it to form a pentamer structure. Unexpectedly, two distinct structures emerged based on pH. At pH 6, a hexamer structure formed, albeit with a surpri
Research on organizational change often focuses on the nature and causes of employee objections to change, typically referred to as resistance. This paper explores managerial assumptions in this regard, suggesting a conceptual framework whereby employee objections are understood as whistle-blowing, opinion, resistance/trauma or resistance/disposition. Furthermore, it shows how each position provid
Popular Abstract in Swedish Diabetes är en endokrin sjukdom som också kallas sockersjuka. Den kännetecknas av förhöjda mängder socker i blodet. Halten av socker i blodet, blodsockret, styrs av hormonet insulin, som produceras av β-celler i Langerhanska öar i bukspottskörteln. När insulin frisätts stimuleras muskler, fettväv och lever till att ta upp glukos ur blodet och lagra det. På så sätt sänksType 2 Diabetes (T2D) prevalence is growing to pandemic proportions worldwide. The link between genotype, environment and β-cell function is still being investigated. I have devoted the work presented in this thesis to attempt to elucidate the coupling of β-cell metabolism to insulin secretion and to look for casual mechanisms underlying metabolic alterations disturbing insulin secretion. In paper
Highly skilled workers are increasingly recognised as a key competitive asset for regional development, and claims have been made that emphasise the importance of certain amenities for the prospects of attracting this particular group of workers. We use a recent large-scale survey to investigate the relative importance of jobs versus amenities for the decision to migrate, as perceived by the migra
Background/Problematization: Iconic brands are the gold standard of branding and have established a central role in the consumers’ lives. Behind every iconic brand, we can find iconic products. Despite the importance of these products, iconic products are overlooked in academia. Few studies have explored the concept and there is no common definition or comprehensive framework. This is restrictive
Den bakomliggande orsaken till att islet amyloid polypeptide (IAPP) är cytotoxisk mot β-celler från bukspottkörteln tros vara prefibrillära oligomerer. Oligomererna skapas då IAPP ändrar konformation till amyloidfibriller. Förlusten av β-celler från cellklusterna har kopplats till typ II-diabetes. Ytterligare kunskap om hur man hindrar IAPP från att växla till den giftiga oligomerformen är oerhörtPrefibrillar oligomers are thought to be the “culprit” behind the cytotoxicity of islet amyloid polypeptide (IAPP) to pancreatic islet β-cells. The oligomers are generated in the process of IAPP’s conformational change into amyloid fibrils. The depletion of islet β-cells has been connected to type II diabetes. Knowledge of how to stop IAPP from switching into the cytotoxic oligomer form is of the
Examensarbetet utfördes i samarbete med Klarna i Giessen med syftet att utveckla en komponent i en del av en webbapplikation som hanterar autentisering. Komponenten skulle interagera med auktoriseringstjänsten försedd från Okta tillsammans med korrekt auktoriseringsflöde som en lösning för tillåten användning av webbapplikationen. Arbetet inleddes med en undersökning av webbapplikationen, bakomligThis thesis was written in collaboration with Klarna in Giessen with the purpose of developing a component to deal with authentication in a web application. The component is intended to interact with the authorization service from Okta with the correct type of authorization flow to allow or disallow access to the web application’s resources. At first, knowledge was gathered regarding the web appli
This thesis was dedicated to investigating the use of different parameter update schemes for Hidden Markov models with time-varying parameters, with an emphasis on developing alternatives to the quasi-Newton step. The focus was on applications to financial returns, using data from the S\&P-500 and the Nikkei index, and for comparison, a trial using synthetic data was also performed. Different
Death is a universal human experience, yet the ecological impact of the care and disposition of dead bodies is rarely considered, due in part to cultural taboos surrounding the physical reality of death and decomposition. If negative environmental consequences are to be limited, deathcare will need to adapt. Utilizing interviews with funeral directors from the United Kingdom, the United States and
Det här examensarbetet utvecklar ett koncept för infästning av fenor på jetboards som inte intränger på befintliga patent. Det resulterande konceptet medför handlingsfrihet (FTO) och följaktligen tillåter produktion av fenor med originell design. FTO innebär möjligheten till att producera och sälja en produkt utan rättsligt ansvar gentemot ägare av patent. Examensarbetet presenterar och diskuterarThis master thesis generates a concept for the means of attaching fins onto jetboards without infringing on existing patents. The resulting concept establishes freedom to operate (FTO) and enables production of fins with original designs. FTO meaning the possibility of producing and selling a product without legal liability to any patent holders. The thesis further presents and discusses user need
This thesis examines the motives of IT employees to stay employed at their current job in an organisation or resign voluntarily and suggests possible factors for organisations to consider while designing retention strategies. The research was conducted as an inductive case study at an IT organisation headquartered in Sweden. A mixed method approach was adopted to gather empirical data through inte
A flow-through microdispenser has been coupled to a micro HPLC separation system and used as a solvent elimination interface for Fourier transform infrared (FTIR) and Raman spectroscopic detection of the separated compounds. Using the microdispenser picoliter sized droplets can be generated and deposited on an appropriate target placed on a computerized x, y-stage. Evaporation of volatile solvent
Enhancement of anaerobic digestion of sewage sludge by enzyme addition was demonstrated in batch digestion tests. A pre-hydrolysation step with addition of enzymes at controlled temperature during 4 hours was shown to increase the methane yield significantly. Further tests with direct feeding of enzymes together with fresh sludge to the digester gave the same effect of a methane yield increase. Fo
Searches for resonant (ν) over tilde production in e(+)e(-) collisions under the assumption that R-parity is not conserved and that the dominant R-parity violating coupling is lambda(121) or lambda(131) used data recorded by DELPHI in 1997 to 2000 at centre-of-mass energies of 183 to 208 GeV. No deviation from the Standard Model was observed. Upper limits are given for the lambda(121) and lambda(1
