Sökresultat

In this thesis we use theory of branch groups and profinite groups to find infinite finitely generated residually finite torsion-free groups whose profinite completions are pro-p. We achieve this by defining a property analogous to the congruence subgroup property of integer matrix groups, which most GGS-groups satisfy, and use this to show that the commutator subgroups of such groups has pro-p pr

This thesis explores the divergent economic trajectories of Taiwan and China, focusing on how institutional differences shaped their respective economic structures. Through a comparative analysis, the study investigates the role of political institutions in driving Taiwan’s emergence as a knowledge-based economy (KBE) and China’s continued reliance on labor-intensive manufacturing. Despite similar

This paper applies the GARCH-MIDAS (mixed data sampling) framework to examine if geopolitical risk indices (GPR) have predictive ability when forecasting stock market volatility in advanced economies. Stock market indices and country-specific GPR indices from 21 advanced economies are used to examine the out-of-sample predictability of short-term total variance and long-term variance. The main fin

The investigation of Bismuth surface structures on InSb(110) surfaces is driven by the need to advance semiconductor technology for enhanced electronic device performance and new applications in optoelectronics and quantum computing. III-V semiconductors offer superior electronic properties compared to silicon. Incorporating Bismuth into these materials can significantly manipulate the bandgap, ma

Neuromuscular Electrical Stimulation (NMES) is a method to stimulate the body's muscles using bursts of electricity on the skin that can strengthen the muscles, increase coordination, and simulate human muscle movement to prevent the formation of Deep Vein Thrombosis (DTV). Electrically sensitive skin areas, called Motor Points (MP), must be stimulated to achieve a robust muscular response and

Amine transaminases are valuable biocatalysts in the pharmaceutical industry for the production of chiral amines. Their high regioselectivity and inherent regeneration of cofactor pose them as a greener alternative to the chemical synthesis. However, their application is hampered by their limited stability and narrow substrate scope and product inhibition. Recently, a stable tetrameric amine trans

This bachelor’s thesis explores social workers' experiences with two different approaches to addressing homelessness in Sweden: the Housing Ladder and Housing First. The study employs a qualitative research methodology, utilizing semi-structured interviews with social workers who have experience with both models. The analysis combines thematic coding with Fairclough's Critical Discourse An

Inom stålindustrin är naturlig konvektion en konventionell kylningsmetod. Genom att öka kylhastigheten jämfört med naturlig konvektion kan produktiviteten öka då kylbäddarna kan kortas och stålplåtarna tillbringar mindre tid under kylning. Detta frigör plats och sparar tid. Då möjligheten att använda infraljud till kylning redan har bekräftats genom experiment, ska denna masteruppsats försöka besvIn the steel industry, a conventional cooling method is natural convection. By increasing the cooling rate compared to natural convection, the productivity can be increased as cooling beds can be shortened, and the steel plates spend less time in cooling. This frees up space and saves time. As the ability to use infrasound for cooling had already been verified through experiments, this master thes

I Sverige drabbas var femte person av depression någon gång under livet, där ett obehandlat depressivt tillstånd ökar risken för tidig död i form av suicid. Det förekommer ett missnöje kring vårdupplevelsen bland deprimerade patienter, samt hur riktlinjer inte alltid efterföljs av klinisk praxis. Syftet: Syftet med studien var att belysa den deprimerade patientens upplevelse av vård. Metod: En ick

Climate change poses a significant threat to global stability, with rising temperatures leading to severe environmental and economic impacts. In response, innovative policy mechanisms such as the Global Carbon Reward (GCR) have been designed to enhance the effectiveness of carbon pricing strategies. The foundational aspect of the GCR is a carbon reward, which acts as a financial incentive distribu

I maj 2023 offentliggjorde Skolinspektionen en lista över 30 gymnasieskolor misstänkta för att tillämpa "glädjebetyg", det vill säga slutbetyg som skiljer sig från resultaten på de nationella proven. Glädjebetyg kan leda till en orättvis tillgång till högre studier och en ojämlik skolgång. Denna studie ämnar att besvara frågeställningen “Om och hur Skolinspektionens lista har påverkat an

This longitudinal study explored the factors influencing the relationship between relatedness and mental well-being in 16–18-year-old Swedish high school students (N=249; m=87, f=159, N/A=3) attending upper secondary school. Measurements were the DASS-21 (Henry & Crawford, 2005), BPNSFS (Chen et al., 2015), SFS-SF (Raes et al., 2011), and the HSC-21 (Weyn et al., 2022), with relevant scores be

This paper aims to study those working in direct contact with the homeless within Malmö and their experience with the troubles they face. This was done using a survey sent out to practicing social workers, mainly working at homeless shelters, with questions regarding the extent of different problems that the homeless face and how different institutes handle those problems. The answers were analyse

Auditory Attention Decoding (AAD) aims to determine the focus of a listener’s attention in environments with multiple overlapping speakers, a challenging situation for hearing impaired patients known as the Cocktail Party Problem. This thesis investigates AAD using Whisper, a transformer-based Automatic Speech Recognition (ASR) system that performs a graded transformation from speech to text while

Today’s security systems generate system logs that contain information about important events such as intrusion attempts and hardware failures. However, the large volume of data makes manual analysis impractical. Instead, this thesis proposes a method of using AI for classification. Building on previous research, a transformer model has been integrated with a hyperspherical loss function and a Lar

This thesis investigates the behaviour of an active dynamic filtering (ADF) system connected to an unknown electrical grid and suggests how to use control theory to reach desired requirements. The ADF system, which is based on a product by Comsys AB, consists of a PI controller and a low pass filter. The main part of this work was focused on developing methods for system identification by finding

This thesis will examine the World Bank's perspective of Korea during its development under Park Chung Hee, specifically regarding the three five-year plans (1962-1976) that were established during his rule. The 1960s and 70s were when Korea's growth kicked off as it started to industrialise. This thesis aims to examine the World Bank's perspective of these three five-year plans and to

Auditory attention detection is crucial for understanding speech in noisy environments, a challenge known as the "cocktail party problem." This project investigates the use of electroencephalography (EEG) to identify which speaker a listener attends to. EEG’s portability and real-time recording capabilities make it a promising tool for practical applications. We propose a novel neural n

In recent years, Swedish communication agencies have increasingly emphasized the value of insight-driven communication for strategic processes. Advocates argue that this methodology enhances creative potential, more accurate target audiences, and improves various organizational functions. Despite some attention in strategic communication research on topics such as data-driven approaches and the st

In southwestern Scania there is a paleovalley, the Alnarp Valley, which holds a confined aquifer called Alnarpsströmmen. Its geology consists mainly of sand and gravel and it is generally confined by one or more layers of clayey till above, and the limestone bedrock below. In collaboration with Region Skåne and SGU, this thesis aims to gather information about Alnarpsströmmen using two geophysical