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In this thesis the neurological mechanisms responsible for navigation in the sweat bee, the bumblebee and the fruit fly are explored. The central complex (CX) in the insect brain is in focus. The CX is critical in deciding the insect’s head direction and in generating goaloriented movements. In this study a comparison is made on how these insects navigate in the absence of visual input. Through co
This master’s thesis project explores different methods for determining an effective electron-electron interaction strength to model dynamic interactions in the Anderson impurity model, an important model within the field of many-body quantum mechanics. The Anderson model describes an impurity atom which is embedded in a metal, with which in can exchange electrons. In this project, different obser
Idag är Tullkammarkajen en övergångszon från Halmstads innerstad till en aktiv hamn och industri. Två helt olika sammanhang som möts på en plats som saknar sammanhållning med resten av staden. Ett oanvänt mellanrum mellan det som en gång var en viktig position för stadens utveckling, och som nu är en plats som varken knyter an till sin egen historia eller med livet i staden. Ett oplanerat, undervä
This thesis addresses masculine identities and men’s relationship to pro-environmental behavior in the Netherlands. Within this, I assess intergenerational dynamics in the form of father-son interactions as an impacting variable for these views. After conducting semi-structured interviews with father-son duo’s, this thesis finds that the views of these dyads on masculinity and sustainability overl
Microscale acoustofluidics utilizes ultrasound to manipulate microparticles flowing through a microchannel. Using this technique, particles or cells can be e.g. separated, aligned, washed or trapped. It is however an emerging technology that should be further developed in order to maximally capitalize on its potential. One possible improvement is to increase the particle migration velocity by incr
This bachelor thesis has been conducted in collaboration with TeamVate. The project focuses on the development and implementation of an onboarding wizard within TeamVate’s App Studio. The goal is to improve user experience and effectiveness for new users. To reach this goal, we implemented an iterative design process, using Norman’s heuristics, creating both Lo-Fi and Hi-Fi prototypes and conducti
This thesis focuses on the communication of risks in the water sector in Sweden, centring on the 2013 PFAS water contamination scandal in Kallinge, Ronneby. Primarily, the water sector in Sweden lacks qualitative research stemming from the field of sociology, indicating how “wicked water problems” make it difficult to see who holds the responsibility in the sector when a crisis strikes. Herein, it
This master’s thesis was done in collaboration with Qlik with the aim of investigating and comparing the onboarding process between the Business intelligence (BI) tools Qlik Sense and Power BI. BI tools are used to transform raw data into structured information that can be strategically used for decision-making. The study followed an iterative design process, where the first iteration was to ident
Network anomaly detection is an active research area, with numerous solutions that utilize statistical methods, neural networks, and other machine learning methods. Autoencoders, in particular, have shown great performance by learning representations solely from benign traffic, enabling the detection of zero-day attacks. In this thesis, we propose a methodology that uses transfer learning to train
In today’s digital age, there is a growing expectation that digital technologies should help address social and environmental challenges, such as climate change. In response, digital infrastructural platforms increasingly employ gamification as a communication strategy to promote behaviors aligned with the public good. However, when implemented within commercial platforms, such initiatives often s
The European bison (Bison bonasus), is the largest terrestrial mammal in Europe and a possible keystone species. Having previously been extinct in the wild, the European bison faces several severe challenges, such as lack of suitable habitat, habitat fragmentation, isolation of populations, small population sizes and a very limited gene pool. Nonetheless, after a long period of regulated matings a
While the sex-limited sex-chromosome (Y or W) is in general not believed to carry much variation that affects individual fitness, some evidence indicates that the Y sometimes influences male fitness. However, few studies have investigated similar effects of W in females. In this study we use whole genome sequencing data from individuals in a study population of great reed warblers with extensive c
This thesis contributes to the relatively recent call for a climate-labour turn. This turn positions the alliance building between the climate and labour movements as crucial for developing a strong counter-hegemonic movement with the power to push for a just green transition and confront the forces of capitalism. To understand the conditions and strategies necessary to foster such climate-labour
The transition from unicellular to multicellular life remains one of evolution’s biggest mysteries. In this study we introduce symbioses with bacteria as a possible player. We use metagenomic analysis to investigate bacterial communities associated with Volvocine green algae, a model system for multicellularity. We compared bacterial communities of 34 algal species (21 unicellular and 13 multicell
Due to climate changes, a large human population, changed lifestyles and travel possibilities, many vector-borne diseases are now on the uprise. The tick-transmitted parasite, Babesia divergens spread by Ixodes ricinus ticks, is one of the emerging pathogens with possible serious outcomes. Most infected people do not obtain any symptoms, but individuals with a compromised immune system or elderly
Fiberbanks have recently received attention as potential greenhouse gas (GHG) sources in Sweden. Fiberbanks are anthropogenically caused fibre-rich sediments in aquatic environments formed by unregulated discharge of fibrous wastewater from historical pulp and paper industries. A majority of fiberbanks show signs of gas ebullition, mainly consisting of methane and carbon dioxide, resulting from an
Tuberculosis (TB) affects millions of people annually and remains one of the leading causes of infectious diseases-related deaths in the world. Current anti-TB treatment consists of a prolonged regimen of multiple antibiotics, which effectively eliminates the bacteria when it is not antibiotic resistant. However, large proportions of the TB-treated individuals experience persistent pulmonary dysfu
Oral streptococci colonize the oral cavity already during early childhood and establish the foundation for colonization by a multispecies oral microbiota. In the oral cavity, Streptococcus spp. contribute to both health and disease, and can also spread to the blood stream causing bacteremia and systemic diseases such as infectious endocarditis (IE) in certain risk groups. Molecular changes in oral
