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I takt med att klimatförändringarna blir en allt mer akut fråga ökar efterfrågan på hållbara transportlösningar, särskilt i glesbygdsområden där alternativen ofta är begränsade. Denna uppsats undersöker potentialen för små eldrivna tåg – i storlek liknande bussar och drivna antingen av batterier eller bränsleceller – för användning på icke-elektrifierade järnvägslinjer på ett kostnadseffektivtThis thesis investigates the cost efficiency of two drivetrain configurations—Battery Only and Hydrogen-Battery—for use in mini-trains operating on non-electrified rural railways. The study focuses solely on drivetrain-related components, in cluding onboard energy storage, traction systems, and associated infrastructure such as charging stations and hydrogen refueling facilities. A comprehensive l

Background: As electronic control units (ECUs) become increasingly complex and central to vehicle functionality, Original Equipment Manufacturers (OEMs) face strategic decisions on whether to develop such components in-house or outsource them. These make-or-buy decisions affect not only cost but also innovation potential, lead times, and organizational capability. Purpose: To evaluate the implica

This thesis explores how business angels’ (BA’s) human- and financial capital contribute to the early-stage development of start-ups. While previous literature has extensively discussed BAs' financial roles, the combined effect of both capital types, particularly in relation to relational trust, remains underexplored. Addressing this gap, the study applies a qualitative approach, interviewing

I en tid av lågt bostadsbyggande, med svårigheter att få byggprojekt att gå ihop ekonomiskt, finns anledning att hitta nya lösningar för att sänka produktionskostnader vid byggandet av nya bostäder. Ett alternativ som diskuterats flitigt under de senaste åren på beslutsfattande nivå är om rådande tillgänglighetskrav ger upphov till onödiga produktionskostnader, trots att de inte fyller någon funktIn a time of low housing construction, with difficulties in making construction projects financially viable, there is reason to find new solutions to lower production costs in the construction of new housing. An alternative that has been widely discussed in recent years at a decision-making level is whether current accessibility requirements give rise to unnecessary production costs, even though t

This study investigates the activist engagement strategies of U.S.-domiciled hedge funds when engaging with Japanese firms. The study forms a comparison of the engagement strategies both before Japan’s 2015 Corporate Governance Code and after. To create this comparison, two campaigns were examined. First, the U.S.-domiciled hedge fund Steel Partners and its campaign against Japanese firm Bull-Dog

The call for climate justice becomes increasingly urgent as environmental degradation and social injustices grow even more intertwined, with their compounded impacts disproportionately affecting communities in the Global South. This thesis critically examines how the European Green Deal (EGD), as a climate policy, perpetuates neo-colonial power structures under the guise of sustainability, using t

This project aims to produce cobalt nanochains and nanowire-like structures along two perpendicular directions. Using gas-based deposition techniques based on spark-ablation, nanoparticles were deposited onto substrates which were later analyzed, either visually with a Scanning Electron Microscope or magnetically using angle-dependent remanence and coercivity measurements. Instead of the biaxial m

The rapid development of generative AI systems such as large language models (LLMs) and image generators have revealed critical tensions between technological innovation and existing data protection frameworks. This thesis examines the practical challenges related to the right to erasure established in Article 17 of the GDPR, commonly known as the "right to be forgotten" in the context o

This study uses The Legend of Zelda: Breath of the Wild as a case to explore how players communicate with the game system and how identity becomes fluid within the virtual world. Adopting a qualitative research approach that combines participant observation and semi-structured interviews, the analysis draws on social systems theory to examine how players interact with technological artefacts, make

The Rohingya crisis is a profound human rights and humanitarian disaster, representing one of the most severe contemporary instances of statelessness. This condition is characterised by the systematic denial of nationality and fundamental rights, largely facilitated by Myanmar's discriminatory state-institutionalised practices and its Citizenship Law of 1982, which excludes the Rohingya from r

This master's thesis analyzes the persecution of the Yazidis through religious, structural, and psychological lenses, with the 2014 genocide by the Islamic State (ISIL) as a central focus. The study highlights how religious narratives, institutional injustices and dehumanization interact to legitimize violence against this minority. Through a historical and contemporary review of sources, it s

This thesis examines the emerging phenomenon of youth retirement homes in China as a unique social space where young people temporarily withdraw from high-pressure urban environments. Through qualitative case study methodology, incorporating in-depth interviews and participant observation, the research investigates residents’ experiences, spatial practices, and identity reconstruction. The study s

To enhance gas turbine efficiency, internal components require advanced cooling. This thesis addresses the challenge of predicting thermal performance in complex matrix cooling geometries. The primary goal was to develop a validated computational fluid dynamics methodology and use it to investigate the impact of bypass channels. First, a numerical model was developed and validated against experime

Introduction The care needs of cancer patients can vary greatly across the course of their serious illness. Despite national efforts to promote supportive care – early integrated palliative care – in Sweden, systemic barriers such as ambiguous terminology and stigma complicate this development. Region Skåne Serious Illness Database (RSSID) is being developed to collect large-cohort data for condu

Time-frequency representations (TFR) typically suffer from resolution problems due to the uncertainty principle. This can lead to loss of information if signals are too close in time or frequency, or if they have significantly different energies. Methods addressing these issues and which can be used in tandem with the typical spectrogram or scalogram have been developed throughout the years. The r

Bakgrund: Många personer med transerfarenhet önskar logopediskt stöd för att utveckla röst och kommunikation i könsbekräftande syfte. Beteendeinriktad könsbekräftande röstträning har lovande, men ännu svag evidens. De senaste åren har målgruppens mångsidiga behov uppmärksammats alltmer i forskning, liksom individens hela kommunikativa situation, inklusive röst- och kommunikationsrelaterad hälsa. KBackground: Many people with transgender experience seek voice and communication support provided by speech and language therapists (SLTs) within gender-affirming care. Behavioral gender-affirming voice training has promising, yet weak, evidence. Current research address the diversity of individual needs, as well as the individual’s communicative situation as a whole, including voice and communica

In today's world, marked by frequent and diverse disruptions, supply chain resilience has become a key consideration in strategic planning. This is particularly true in the automotive industry, where lean practices, globalization, and complex supplier networks increase vulnerability. This thesis explores how three major automakers - Toyota, Volkswagen, and General Motors - navigated significan

This study was conducted in collaboration with Air Liquide France Industry and investigates one of the production lines of the company.The quality of gas cylinders must be assessed every 10 to 15 years for safety reasons. The line studied in this study evaluates the quality of cylinders by both a visual inspection and a hydraulic pressure test. As awareness of the environmental impact of such largFactory Detectives: Uncovering Hidden Performance Secrets Imagine a factory line, running with tireless precision, a relentless ballet between machines and human. But what if a closer look reveals that efficiency isn't just about what meets the eye? Embark with me on a detailed exploration inside a gas cylinder plant, seeking to understand its true operational dynamics. To begin our investig

En av the första matematiska strukturerna man stöter på är de naturliga talen $1,2,3,\ldots$. Här kan vi addera, $12+7=19$, och multiplicera $4\cdot 7=28$. Men denna struktur hade fungerat precis likadant om vi bytte namn på alla tal till deras romerska motsvarighet. I så fall hade de naturliga talen varit $\rom 1,\rom 2,\rom 3,\ldots$ och vi skulle istället ha skrivit $\rom{12}+\rom 7=\rom{19}$ oWe introduce and discuss unitary equivalence of operators in the Cowen-Douglas class $B_n(\Omega)$. We prove that operators in the Cowen-Douglas class are unitarily equivalent if and only if there exists a holomorphic matrix $M$ which satisfies $\tilde K_\lambda(z)=M(z)K_\lambda(z)M(\lambda)^*$ for the spaces' kernels. We use this to establish that $\Delta_\lambda\log\lvert\lvert k_\lambda\rve

To characterize ultrashort laser pulses, several techniques have been proposed. One of the more simple and robust techniques is the dispersion scan (d-scan). The d-scan technique is capable of retrieving the spectral phase from a measurement of the second-harmonic spectrum, while the dispersion of the pulse is varied. Regardless of the advantages of traditional d-scan, a measurement with a scannin