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Dark matter has an important role in our Universe, especially in galaxy formation and evolution, but there are many theoretical models that attempt to describe it and to find out which one, if any, are correct we must test them. Testing a theoretical model of this nature at a galactic scale must and has been done using computational methods through simulations, but this has revealed more complicat
A hydraulic system is designed to transport fluid power over large distances, from pumps to actuators where the fluid power is transformed to mechanical power. The submarines, built and designed by Saab Kockums, utilises such systems. There are, however, challenges as the hydraulic pumps consume much energy, and the system accumulators command significant space. As both energy and space are limite
This thesis analyzes schoolchildren’s mental health development in five mental health-related variables when they gain internet access through 3G networks. A unique panel dataset using the HBSC with country-level 3G coverage is constructed. Using a TWFE strategy to estimate the effect on the five outcome variables, a decrease in mental health is found for both female and male children. The results
The aim of this study was to investigate how adult attachment styles and emotional intelligence impact decision-making styles. An online survey was distributed to individuals aged 18 years or older (N =110). The survey included three instruments; the Adult Attachment Scale (AAQ), Wong & Law Emotional Intelligence Scale (WLEIS), and the General Decision-Making Style (GDMS) questionnaire, along
This thesis explores the complex relationship between crime and development, focusing on how this relationship is understood in current literature. Through synthesising existing literature, empirical evidence, and theoretical frameworks such as modernisation theory, strain theory, and social disorganisation theory, it aims to offer a nuanced understanding of this nexus. The systematic literature r
This thesis examines the impact of shareholder activism on the annual stock returns of targeted companies. Utilizing a dataset of activist campaigns from the FactSet SharkWatch 50 database, covering the period from 2005 to 2021, we investigate whether the presence of activist investors leads to enhanced stock performance. Our empirical analysis, employing an event study design, reveals a significa
This thesis explores the potential of incorporating Artificial Intelligence (AI) into User Experience (UX) Research Operations (ResearchOps) within an organisational context. Design Science Research (DSR) was employed to develop and evaluate a method that incorporates AI to enhance user research activities. The research involved conducting qualitative interviews with UX professionals at Alpha to u
There is uncertainty about whether AI-generated output can and should be protected under EU copyright law and, in that case, who should obtain the rights. This thesis examines this legal issue by interpreting the legal text especially the InfoSoc Directive, case law and by considering legal scholarships. It has been established in the thesis that an AI-generated output can be considered protectabl
Demokratier nedmonteras i stater runtom i världen. För att undvika och återhämta sig från demokratisk nedmontering är det viktigt att stater kan bibehålla eller förbättra sina nivåer av demokrati. Detta koncept är känt som ’democratic resilience’ eller demokratins motståndskraft. Demokratiers nedmontering har en negativ inverkan på människors möjlighet att åtnjuta mänskliga rättigheter, varför säkDemocracy is declining in several states in all regions of the world. To avoid and recover from democratic backsliding, it is important that states can maintain or improve their levels of democracy. This concept is commonly referred to as ‘democratic resilience’. Democratic backsliding has a negative impact on the ability of people to enjoy their human rights, and therefore, there must be a safety
This thesis aims to explore how managers comprehend the systemic value of a companies’ Performance Management System (PMS). The study findings show that PMS causes path-dependent behavior, leading to organizational rigidities, strategic inertia, and diminishing PMS effectiveness. Managers' comprehension of the multifaceted, complex, and systemic nature of PMS can counteract the unintended nega
The study of minimal surfaces has a long history, due to the important applications. Given a fixed boundary, one wants to minimise the surface area: this can be used, for example, to minimise the area of the roof of a building. Similarly, looking for constant mean curvature (CMC) provides us with many interesting ap- plications in physics – one of the easiest examples are soap bubbles. In this wor
Research links motivation to well-being and personality. There have also been studies regarding the connection between personality and health. In one scientific study, certain personality traits and greater motivation predicted high levels of well-being, but greater motivation also predicted lower well-being when the individual had a high tendency to worry and pessimism. In order to help organisat
Oat (Avena sativa) is a cereal crop rich in dietary fibre, vitamins, antioxidants and other nutrients. It is considered to have higher nutritional values compared to other cereals (Tosh & Miller, 2016). Arabinoxylan (AX) is a hemicellulose naturally abundant in cereal crops. It is a major component of dietary fibre in crops like wheat, barley, rye, maize, rice and oats (Lu et al., 2000). Stu
The energy demand of the world continues to increase, while world's resources are exploited over its capacity. One way of facing these demands is to extend the use of fuel cells. A fuel cell converts chemical energy into electrical energy through a series of chemical and electrochemical reactions. A solid oxide fuel cell (SOFC) is unique since it only contains solid materials and the cell has
This work investigates visualizations of two crises; terrorism and climate change. Focus lies on mediated images concerning Paris 2015, where terrorist attacks had an impact on the following UN climate change conference (COP21). The symbol of the Eiffel Tower was used to portrait both issues and will be studied through a semiotic analysis. Terrorism and climate change are argued to be interlinked,
The Large Hadron Collider (LHC) at CERN became operational in 2009 and has since then produced a plethora of physics results from proton–proton (pp) collisions. This short review covers results that relate to soft quantum chromodynamics (QCD) with a focus on nondiffractive physics at midrapidity. Most of the presented results are based on transverse momentum spectra and related derived observables
The current paper focuses on the conceptual design and numerical analysis of a four-stage centrifugal pump for the fuel system of a turbofan engine with liquid hydrogen as fuel. Liquid hydrogen is challenging at high pressures due to its special fluid properties. The design condition for the pump is set at take-off, to raise the pressure of liquid hydrogen from 6 bars at the outlet of a low-pressu
BackgroundBreathlessness is a common and distressing symptom across a wide range of medical conditions. Different aspects (dimensions) of breathlessness can be assessed using the Multidimensional Dyspnoea Profile (MDP) and Dyspnoea-12 (D12) questionnaires. We aimed to examine whether the order of completing MDP and D12 affects the breathlessness responses in people with cardiorespiratory disease.M
This special issue deals with temporalities in migration law with particular emphasis on the European context. At the crossroads of several legal fields, including public law, human rights law, EU law and public international law, the topic is cutting-edge in migration law. The articles collected were originally presented at a conference organized at Vrije Universiteit in Amsterdam in June 2023 an
