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In this thesis, we apply Bayesian Optimization to estimate the parameters of the LPJ-GUESS dynamic vegetation model with a focus on Methane (CH4) emissions in the Siikaneva wetland in Finland. Previous research has used other statistical methods, such as Markov Chain Monte Carlo (MCMC), to estimate the LPJ-GUESS model parameters, achieving a root mean square error (RMSE) of 0.023. Our objective is
This thesis explores the escalating and often underestimated issue of bird-window collisions, specifically within the Swedish context, through the lens of the built environment. Globally, hundreds of millions of birds die annually from colliding with glass surfaces, with estimates reaching nearly a billion birds in North America alone. This significant threat is compounded by modern architectural
The ongoing pursuit of advanced multicomponent magnetic nanomaterials with tailored functionalities for applications in data storage, spintronics, and biomedicine necessitates novel synthesis approaches beyond conventional template-based methods. In response, this thesis investigates the generation, self-assembly, and characterisation of largely little-known Fe0.10Ni0.40Co0.25Pt0.25 medium-entropy
Background.In some regions, including the Baltic Sea, fatty fish such as salmon and herring contain high levels of polychlorinated dibenzodioxins and dibenzofurans. We investigated human exposure to these potentially toxic substances in relation to the consumption of fish from the Baltic Sea.Methods.Plasma levels of 10 different dibenzofurans and 7 dioxins were analyzed in three groups of Swedish
Background and Aims: In primary sclerosing cholangitis (PSC), the risk for gallbladder malignancy is increased. Surveillance imaging is used for early diagnosis. The study aims to assess the reliability of ultrasound and magnetic resonance imaging (MRI) for the detection of gallbladder polyps in people with PSC and to define a polyp size as a cut-off at which cholecystectomy is indicated due to th
Mental illness has increasingly become a problem throughout the world and is believed to cost the global economy $16 trillion by 2030. Consequently, a growing body of literature investigates the possible causes of mental illness and more specifically, possible early life circumstances which may affect adult mental health. Limited research exists though in terms of exposure to recessions in utero a
In order to better utilize the wind in urban areas, small-scale wind-turbines can be retro-fitted on existing buildings. However, wind-turbines are as structures very prone to oscillate. If the turbines would be mounted with a stiff connection, these vibrations would transmit to the building structure where high-frequency vibrations will transmit as structure-borne noise, and low-frequency vibrati
Problemformulering: Finns det någon poäng med att övertyga gästerna om varumärkets storhet om inte de anställda är med på tåget? Det har påpekats att utan motiverade och nöjda anställda riskerar varumärkets och ledningens löften till gästerna att bli tomma, då det är personalen som ska leverera den utlovade servicen. Vi anser det intressant att undersöka hur företag inom hotellbranschen arbetar me
Denna studie handlar om motivation hos anställda inom hotellbranschen samt hur chef och ledning ser på detta fenomen. Ämnet valdes eftersom att författarna till studien anser att personalen inom hotellbranschen är en mycket viktig resurs och bör ses som värdefulla redskap för att uppnå de mål som organisationen har. Avsikten med denna uppsats är att undersöka hur man inom ledningen på ett stort ho
Kartlägga buskar på Öland för att rädda den biologiska mångfalden. På södra delen av Öland finns ett område som kallas Stora Alvaret som har mycket höga naturvärden. En minskning av betande djur under 1900-talet har dock gjort att den biologiska mångfalden hotas av buskar som sprider sig och utkonkurrerar andra växter. I examensarbetet Looking for shrubs in an alvar undersöker Jorun Westman metodeLoss of biodiversity is an immediate threat to the planet and if no actions are taken it is expected to accelerate. The highest species richness on smaller scale is found in semi-natural temperate grasslands, with one of the documented records from Stora Alvaret on Öland, Sweden. The area is protected under the Natura 2000-network and Länstyrelsen Kalmar are responsible for monitoring while local
This MSc Thesis’s main objective is to determine the impact of transformer inrush currents in the grid and develop a tool that helps E.ON Energidistribution AB evaluate transformer sizing. The motivation of E.ON is to have a more precise way to estimate the energization consequences of increasing the transformer size in the grid, since currently is being used a rule of thumb that relates the trans
BackgroundPreliminary results from the SNAP trial presented at ESCMID Global 2025 reported a high incidence (19.8%) of acute kidney injury (AKI) in patients treated with (flu)cloxacillin for Staphylococcus aureus bacteraemia (SAB).ObjectiveIn Sweden, cloxacillin is used at lower daily doses, and the risk of nephrotoxicity has not been assessed in this setting.MethodsWe retrospectively evaluated re
Background Inversions involving intron 22 (Inv22) of the F8 gene are detected in approximately 45% of all severe hemophilia A (HA) patients. Digital droplet polymerase chain reaction using milepost assays and multiplex ligation-dependent probe amplification (MLPA) allows robust diagnosis of inversions, copy number variations, and more complex rearrangements in F8 . Objectives A total of 350 HA pat
Background The aim of this systematic review and meta-analysis was to examine autoantibody positive individuals and define: (a) the relative risk of rheumatoid arthritis (RA) compared with autoantibody negative individuals and (b) the cumulative incidence of RA over time, in different populations. Methods A systematic literature search was performed in August 2025. Retrospective case control studi
We find that CO ligates selectively to nitrogen tetra-coordinated Co(i) single metal atom sites at room temperature in a manganese–cobalt bi-metallic coordination network self-assembled on graphene. The bound state is metastable, determined by pressure-dependent equilibrium conditions between adsorption and desorption, with an upright, end-on bonding geometry (binding energy 0.73 eV). The ligand v
Breastfeeding confers a wide range of benefits to mothers and children, and in many contextsmay continue for several years after the birth of a child. As a result, breastfeeding duringpregnancy (BDP) is a common occurrence throughout low- and middle-income countries.Nevertheless, yet there has been little research into its association with the health of breastfedchildren or the outcomes of the pre
Flood risk is influenced not only by climate change but also underlying factors including unplanned urbanization, environmental degradation, poverty, social inequalities and weak governance. Given its complexity, effective flood risk management requires a better understanding of its conceptual context and comprehensive assessments that beyond hazard consider exposure, vulnerability and capacity. T
Background Multimorbidity, the co-occurrence of two or more non-communicable diseases (NCDs), is common and has been linked to venous thromboembolism (VTE). Whether multimorbidity diagnosed in primary-care is associated with incident VTE remains unclear. We aimed to examine this association. Methods Multimorbidity was defined using Swedish primary-care data. Individuals without prior VTE were incl
