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Portfolio optimization is a central problem in finance, with traditional approaches of- ten relying on forecasts of expected returns and covariances. With the growing adoption of machine learning in finance, return forecasting using ML techniques has become in- creasingly common. More recently, an alternative approach has been proposed where the portfolio weights are learned directly, bypassing th
The Swedish healthcare system is facing a substantial challenge in competence provision, with skilled staff needed in both the private and public sectors. The Swedish government is investing heavily in initiatives and mapping projects aimed at securing future competence supply. This study aims to identify which factors have the greatest impact on healthcare employees' decisions to either leav
Amidst a surge in global demand for materials driving the green transition, this thesis investigates how policymakers can best ensure sound environmental performance in the Swedish mining industry following unexpected mine closures. Current Swedish financial assurance mechanisms, intended to operationalize the Polluter Pays Principle, are hampered by unclear criteria and a focus on individual site
I dagens digitaliserade samhälle har konsumentinformation en central betydelse för kommersiell verksamhet. Genom insamling och analys av sådan information kommer företag sina konsumenter nära, och kan anpassa erbjudanden och interaktioner efter deras unika vanor och personlighetsdrag. En särskilt viktig teknik för informationsbehandlingen är digital profilering. Digital profilering kommer med månIn today’s digitalized society, consumer information plays a key role in commercial practices. Through the collection and analysis of such information, businesses come closer to their consumers than ever before, and are able to tailor offers and interactions to the unique habits and personality traits of individuals. A particularly important technique for the processing of this information is digi
Influencer marketing är en växande marknadsföringsform och med den uppstår nya skatterättsliga utmaningar. Skatteverket har uppmärksammat osäkerhet och bristande efterlevnad bland influencers kring beskattning av mottagna produkter. Skatteverket har den 17 april 2025 i ett pressmeddelande informerat om att influencers kan behöva deklarera. I denna uppsats undersöks hur produkter som skickas till iInfluencer marketing is a growing form of marketing and with it new tax law challenges arise. The Swedish Tax Agency has drawn attention to uncertainty and lack of compliance among influencers regarding taxation of products received. On April 17, 2025, The Swedish Tax Agency issued a press release stating that influencers may need to declare. This thesis examines how products sent to influencers w
This thesis examines the 14 largest listed Swedish real estate companies on the Nasdaq Stockholm Large Cap segment as investment objects between 2006 and 2026. It analyzes their risk and return characteristics, identifies shared traits among the strongest performers, and tests whether an optimized portfolio of real estate shares can outperform both the sector index and the broader market on a ris
For decades, Theodore Levitt's notion of the homogenisation of consumer taste, as a consequence of globalisation, has been used in the marketing literature to legitimise standardisation as global strategy. Levitt's notion of homogenisation of taste refers to a worldwide desire for modern, low priced, world-standard and dependable products from the modern, and primarily western, world. Homo
”Jesus is the way, the truth and the life, therefore Islam is… - the view of Islam and Muslims in the student organization Credo Lund” is an inductive, quantitative interview-study. The purpose of the study is to investigate how a person, convinced of Christianity‟s exclusivity when it comes to salvation, relates to and talks about Islam and Muslims. The material consists of interviews with four m
This study explored the alternative visions and innovative strategies of Zambian local non-governmental development organizations (LNGDO) in their attempt to improve their organizational sustainability with the purpose to understand and analyze the organizational sustainability of LNGDOs in peri-urban Lusaka and Kitwe, Zambia. A case study approach was used to both delimit the scope of the study a
This study deals with the issue of how music can affect the religious experience of people who sing in choirs in the Church of Sweden. It is established that music plays a great importance in people’s every-day lives, and that it has various effects on us, for instance how it can soothe a person who is agitated or the way it can induce fright, compassion, anger or happiness. Music occupies a large
The research objective for this thesis are two problematic yet interweaving occurrences observed in earlier research on the Abu Ghraib scandal (2004) and its image material. Firstly in terms of methodology, a restricted amount of images in which three single images, “Hooded Man”, “Man on Leash” and “Piled Bodies” are overrepresented and frequently regarded as descriptive for the scandal as such. S
The aim of this work was to develop a stable and reproducible argon milling process for InAs nanowires to remove the native oxide layer that increases electrical resistance. This was done by identifying a few milling parameters and studying them in relation to the milling rate of silicon dioxide (SiO2). After further experiments with different milling parameters, a set of parameter values was foun
Mantelplymhypotesen har varit föremål för omfattande debatt under lång tid, ända sedan den publicerades 1971. Denna hypotes förklarar vulkanismens ursprung genom antagandet att ett extremt varmt mantelmaterial stiger upp under litosfären genom smala kanaler. Hypotesen har accepterats av geologer och har använts för att förklara vulkanism på platser som Hawaii och Island. Trots detta har hypotesen The mantle plume hypothesis has been a subject of extensive debate since its initial publication in 1971. This hypothesis posits that volcanism originates from narrow channels of exceptionally hot mantle material rising from the deep mantle to the lithosphere. While some geologists have historically supported this idea, it has encountered significant challenges, particularly in explaining the volc
High hyperdiploid acute lymphoblastic leukemia (ALL) is one of the most common malignancies in children. It is characterized by gain of chromosomes, typically +X, +4, +6, +10, +14, +17, +18, and +21,+21; little is known about additional genetic aberrations. Approximately 20% of the patients relapse; therefore it is clinically important to identify risk-stratifying markers. We used SNP array analys
We have designed a new class of microdevices composed of a supporting plastic (polyvinyl chloride, PVC) plate integrated with a groove for a piece of fused silica capillary (the separation channel), a slit for on-tube detection, an “islet” for the application of sample, electrode vessels and platinum electrodes. The design permits electrophoretic, electrochromatographic and chromatographic separat
STUDY OBJECTIVE: The objective of this study was to investigate the associations between medication with psychotropic drugs and falling accidents in the whole population aged 65 years and older in the county of Scania, Sweden. DESIGN: A population based nested case control study was performed. SUBJECTS: Cases were persons registered in the Region Healthcare database after a falling accident during
Microwaves were for the first time produced by humans in 1886 when radio waves were broadcasted and received. Until then microwaves had only existed as a part of the cosmic background radiation since the birth of universe. By the following utilization of microwaves in telegraph communication, radars, television and above all, in the modern mobile phone technology, mankind is today exposed to micro
Objective. Formal joint assessments are critically important to improve rheumatological care of patients with RA. The aim of this study was to determine the usefulness of patient-recorded 28 tender joint counts (TJCs) and swollen joint counts (SJCs) using a tablet personal computer and to explore the possibility of using patient-recorded data to calculate 28-joint DAS (DAS-28) and EULAR response.
BACKGROUND: Multifocal electroretinogram (mfERG) has the power to discriminate between localized functional losses and overall retinal changes when evaluating retinal injury. So far, full-field ERG has been the gold standard for examining retinal ischemia and the effects of different neuroprotectants in experimental conditions. The aim of the present study was to establish mfERG, with simultaneous
