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In this thesis the effects of utilizing the sample covariance matrix in the estimation of the global minimum variance (GMV) portfolio are presented. When the number of assets, N, are close to the number of observations, T, the sample covariance matrix approaches singularity, leading to a lot of uncertainties in form of estimation error. Due to that the computations of the sample GMV portfolio are
Purpose: The purpose of this paper is to explore the usage of NFT’s in branding through the introduction of a framework that explores the correlation between the practical benefits for the NFT user and Brand Awareness or Brand Loyalty for the Brand. Methodology: To fulfill the papers’ purpose we conducted a literature review and a qualitative study exploring four different cases; NBA, J.D. Sports
Den odränerade skjuvhållfastheten är en viktig geoteknisk parameter som man behöver ha en god uppfattning om i samband med byggnation på lerrika jordarter. Då flertalet av de vanligen tillämpade undersökningsmetoderna är väldigt tidskrävande och kostsamma, finns det ett stort intresse för att undersöka hur alternativa och samtidigt mer enkelt mätbara parametrar, så som flytindex (IL), förhåller siUndrained shear strength is a crucial parameter of the clay-rich sediments commonly used in the design process of geotechnical structures and is determined by several tests. As a considerable part of these tests are cost- and time consuming, it is of interest to investigate the potential relationship with shear strength (cu) with alternative, easily measurable parameters, such as liquidity index (
The purpose of this thesis was to determine how a heavy duty vehicle manufacturer can create an economical viable business model for used batteries from electric buses and trucks. Heavy duty vehicles are responsible for 30% of on-road CO2 emissions in the European Union, but could be decreased if this sector would be electrified. One major barrier for this transition is the large cost for the batt
This thesis explores the extent to which international human rights law and international labour law place obligations on States to protect migrant workers’ fundamental rights, especially their rights to social security. More importantly, this thesis examines intra-ASEAN migrant workers’ accesses to the social security benefits, as defined by the ILO Social Security (Minimum Standards) Convention,
In current oat beverage production, insoluble components such as fiber fractions (plant cell structures) are usually decentered from the product, causing many types of loss. Retaining these fractions requires an efficient breakage of them, to avoid sandy mouthfeel in the end-product, which can be achieved for instance by homogenization. To study the homogenization efficiency, the resulted particle
Glycosaminoglycans comprise linear polysaccharide containing repeated disaccharide units. When one of the disaccharide units of chondroitin sulfate, glucuronic acid, gets epimerized by dermatan epimerase 1 to iduronic acid, dermatan sulfate is formed. Dermatan sulfate is essential in tumorigenesis, due to increased flexibility in the chain and enables interaction with certain proteins such as cyto
Forecasting wind has always been an interesting subject, and as large parts of the world are relying more on wind for power production it is becoming even more important to have reliable forecasts. Probabilistic forecasts, where distributions are predicted in contrast to deterministic forecasts, are impor- tant for informed decision making. We apply two methods based on conformal prediction for pr
Abstract The glycosaminoglycan dermatan sulfate plays a crucial role in the process of tumorigenesis, due to increased flexibility in the polysaccharide chain, when glucuronic acid, in the glycan chondroitin sulfate, epimerizes into iduronic acid. The conversion facilitates a change in the interaction with certain proteins such as growth factors, angiogenic factors, and cytokines. The enzyme invol
This thesis examines whether the European Union’s emerging sustainability framework effectively regulates fast and ultra-fast fashion as a unified envi-ronmental problem while ensuring fair competition in the internal market. Fast fashion is characterized by rapid production cycles, low prices, and high vol-umes, causing significant environmental harm across the product lifecycle. In response, the
The focal point of the essay is the right to food as a human right. The author argues that there is a need for a change in the human rights system concerning the right to food, since the original framework assigns full responsibility to the individual states, whereas in today's global power structures, government policies and national institutional arrangements in poor countries have very litt
The marine environment faces significant changes due to anthropogenic activities, with urbanisation and "marine sprawl" introducing artificial structures that disrupt natural ecosystems. Artificial reefs (AR) and nature-inclusive design offer solutions to enhance habitat complexity and foster ecological restoration. This thesis investigates how AR design and material properties can suppo
This study provides an in-depth analysis of the impact of a multimodal journey-planning app on users of informal public transport systems in Cochabamba, Bolivia. We analyze survey data (N=648) collected through the Trufi Association NGO's digital travel app on changes in mobility behavior, satisfaction, and everyday life improvements. Participants report more frequent use of informal transport (49
This paper examines forest-based bioeconomy innovation in Sweden between 1970 and 2021 to test central claims about innovation complexity, knowledge requirements, collaboration intensity, and industrial life cycle dynamics. Using a comprehensive database of 4,972 commercialized innovations, I identify 649 forest bioeconomy innovations and analyze their characteristics through logistic regression,
Simulation methods in breast imaging offer advantages over clinical trials in terms of improved reproducibility, reduced need for patient exposure to radiation, increased flexibility, and more clearly defined ground truth. Simulation also allows for improved representation of anatomical variations and variations in acquisition parameters and breast positioning related to multimodality imaging. The
Objective: In the present study, we investigated the role of the gut–liver crosstalk in the pathogenesis of steatotic liver disease (SLD) induced by the compounding and deleterious effects of alcohol and metabolic risk factors, and explored the potential translational aspects of microbiome-based interventions. Design: The effects of combined exposure to alcohol and a high-fat, high-cholesterol die
