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In this master’s thesis, the possibility of increasing the load bearing capacity of glued timber joints by the use of a rubber foil was investigated. A rubber foil is believed to ensure a more uniform distribution of stresses and thereby greater load bearing capacity. The work within this master’s thesis consisted of developing material models for rubber based on experimental tests in order to en
Svampmycelet formas efter miljön Ett svampmycel är en komplex vegetativ enhet som påverkas av miljöfaktorer som till exempel näringstillgång. Detta är känt hos högre, frilevande, svampar som lever av döda växtdelar. Min studie visar att även svampar som lever i symbios med växter, utvecklar sitt mycel i direkt respons till omgivningen. Svampar har olika sätt att överleva. Svampen kan leva som sapAbstract The mycelium formation and foraging strategies of arbuscular mycorrhizal fungi (AMF) are not well understood, due to the biotrophic nature of these fungi, which makes cultivation methods without a host difficult. However, in-vitro-techniques have been developed in which AMF are inoculated on genetically transformed roots of various dicotyledonous plants. In the present study, monoxenic c
A sedimentlogical and palynological study of samples from the Middle Jurassic Fuglunda Member, Mariedal Formation at Eriksdal, Skåne, Sweden, has been carried out. The section is dominated by sandstone with minor units of coal, claystone, siltstone and conglomerate. The depositional environment has been interpreted as a coastal setting, perhaps a delta system with mixed influences of fluvial, tida
Alzheimers sjukdom och nanopartiklar – blir vi dementa snabbare? Demenssjukdomar kommer märkbart att påverka vår allt mer åldrande befolkning. Alzheimers sjukdom är den vanligaste av dessa och leder till exempel till minnesförlust och förändrad personlighet. En sak som kännetecknar sjukdomen är bildandet av plack i hjärnan. Plack består av ihopklumpade protein. Proteinet som utgör dessa utgör desAbstract Alzheimer’s disease is a common form of dementia with one of its hallmarks being the formation of plaques in the brain consisting of fibrils formed from the amyloid beta peptide (Aβ). Nanoparticles have in vitro been shown to affect the rate of which these fibrils form. When nanoparticles enter a biological system they will be covered with proteins, a protein corona is formed. In this st
Biomedical application of nanoparticles is largely associated to their fate in biological media which, in fact, is related to their surface properties. Surface functionalitzation plays a key role in determining biodegradation, cytotoxicity and biodistribution through interactions which may be meditated by the macromolecules occurring in biological media. This project is focused on the effect of di
In an age of increasing usage of heavily interconnected platforms, graph databases have increased in popularity due to their ease of modelling these systems. This thesis will evaluate if the graph database Neo4j can be used to model Lime's CRM System efficiently by comparing the performance of Neo4j and MS SQL on queries similar to those existing in Lime CRM. To benchmark the databases, they w
This research aims to investigate the relation of CEO compensation, especially how the sensitivity of CEO wealth to stock return volatility (vega), but also how the sensitivity of CEO wealth to stock price (delta) affects the risk of the firm. Moreover, these relations are investigated in the context of cross-listing to examine whether there are differences between US-only listed firms and those t
Modication of wood is carried out to increase the durability and dimensional stability of wood, and one of the modication methods is acetylation. Acetylation of wood means that polymers in the cell wall react with acetic anhydride. Today, acetylated wood is rarely used in load-bearing structures and there are only a few studies on how the fracture characteristics are affected by acetylation. A stu
Detta project utfördes i samarbete med svenska förpackningsföretaget Tetra Pak Packaging Solutions AB. Deras huvuduppgift är att utveckla förpacknngsmaterial, processer och maskinlinjer som krävs för att producera laminatet, vilket är att flerskiktsmaterial som vanligtvis består av papper, plast och aluminium för att skapa en stark och skyddande barriär för flytande livsmedel. För att skapa laminaThis project was carried out in cooperation with Swedish packaging company Tetra Pak Packaging Solutions AB. Their main purpose is to develop the packaging material, process, and machine lines needed to produce the laminate, which is a multi-layered material typically made by combining paper, plastic, and aluminum to create a strong, protective barrier for liquid food packaging. In order to create
Problem: The Milky Way disk consists of two distinct components, the thin and thick disk, each with unique kinematical, elemental, and age-related properties. Among all the properties considered, age stands out as the only one that does not exhibit significant overlap, thereby offering clearer separation between the populations. Stellar ages, determined through isochrone fitting, are reliable main
Extremophilic bacteria, like Rhodothermus marinus, hold promising potential to be used as non-model cell factories for the production of various metabolites, such as carotenoids or exopolysaccharides, due to their inherent adaptability to extreme environmental conditions. This study explores the production, isolation, and characterisation of carotenoids from an engineered R. marinus strain termed
Quantum mechanical technologies often relies on the system being cooled to low temperatures. One way to achieve this is with measurement and feedback based cooling. In this thesis measurement and feedback on a quantum harmonic oscillator coupled to a thermal reservoir is considered. The Wiseman-Milburn equation is used with a linear feedback control to find the steady-state solutions for the first
The aim of this thesis is to investigate the mechanical response of paperboard in the out-of-plane direction by incorporating its microstructural characteristics, with a particular focus on fiber-fiber interactions and fracture mechanisms. These features are implemented into models of varying complexity to evaluate their influence on material behavior. Two fracture modeling techniques, the Extend
Carmilla (1872) is a foundational gothic novella that explores female intimacy, monstrosity, and transgression within a patriarchal context. While widely recognized for its depiction of same-sex desire and subversion of Victorian gender norms, the story also reveals a deeper network of violence that sustains social and gendered hierarchies. However, critical attention has often focused more on Car
NMDA receptors are ligand-gated ion channels assembled as heterotetramers composed of glycine-binding GluN1 and GluN3 subunits (GluN3A-B), and glutamate-binding GluN2 subunits (GluN2A-D). Their involvement in various psychiatric and neurological disorders makes them potential therapeutic targets. However, compared to the extensively studied GluN1/2 NMDARs, the functional, physiological, and pharma
This study investigated how acoustical challenges, specifically changes in signal-to-noise ratio (SNR), affect the neural tracking of attended and ignored speech in individuals with hearing impairment. The analysis began with the speech envelope and was progressively extended by incorporating phonetic information as well as outputs from all layers of OpenAI’s Whisper model. The goal was to gain a
Pythia with Rope Hadronization, and the Canonical-Statistical Model with strangeness undersaturation (γSCSM), have shown remarkably similar results when simulating strange hadrons yields relative to pion yields as a function of event-multiplicity. As the underlying assumptions in these models are very different, a novel observable is warranted. The aim of this thesis is to show that K0S/(π+ + π−)
Emerging storage devices, particularly ferroelectric tunnel junction (FTJ) memristors, offer a compelling solution for high-density storage as they form a type of non-charge based non-volatile storage capable of storing multiple bits in each device; however, their adoption is hindered by reliability concerns. This work addresses this by presenting a design and implementation of an efficient Error
