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In 1972 Hajnal and Kertész published a paper proving that the Axiom of Choice is equivalent to the assertion that a groupoid structure can be defined on every set. This thesis aims to provide the necessary background needed for this proof. In the first part basic concepts in set theory such as the Well-Ordering Theorem are derived. This culminates in a lemma by Hartogs (1915) in which it is shown,
This thesis examines which fiscal instruments are considered as Covered Taxes under the GloBE Model Rules particularly in the Oil and Gas sector. The countries used for the examination are Brazil and Nigeria as both have a huge oil and gas sector. While Brazil has adopted a Qualified Domestic Top-up Tax, Nigeria has abstained against the Pillar Two framework. The main research question explor
This study investigated the influence of various native and modified starches on the quality and staling behaviour of gluten-free bread. Four starch types: native wheat starch, cross-linked tapioca starch, fractionated native potato starch (FPS), and acetylated potato starch (Amylacetate) were evaluated by incorporating them into a standardized gluten-free bread formulation as the main starch sour
This thesis explores how young people in Landkreis Harburg, Germany, make sense ofmilitarization and security narratives in their everyday lives, following Russia's full-scaleinvasion of Ukraine in 2022. Drawing on the conceptual frameworks of militarization andbanal militarism, the study examines how military logic becomes embedded in civilian lifethrough both institutional and informal proce
Most correctional facilities in Europe are not only places of confinement but also serve a central role in the rehabilitation and reintegration of offenders into society. The main objective of imprisonment, according to the provisions of international criminal justice regulations in Germany requires that prisoners and young offenders serving custodial sentences are to be enabled to lead a life fre
Title: The Digital White Coat - A study on doctors identity work within digital healthcare Course: BUSN49, Degree Project in Managing People, Knowledge and Change Authors: Clara Bergh and Gustav Levin Supervisor: John Murray Date: 27th of May 2026 Purpose: The purpose of this study is to create a deeper understanding of how doctors working within digital healthcare construct and reconstruct their
This paper empirically explores 10 years of play-by-play data from the seasons 2011-2021 from National Basketball Association with a comprehensive dataset with 2.7 million shots to test for a hot hand, (i.e., predictability in future outcomes) using three separate models. I find proof for its existence in all short-term categories using panel data as well as when adjusting for shot difficulty usin
This paper examines constructions of nature as communicated in three films by outdoor company Patagonia. By employing discourse analysis and the theory of spectacle, the films are seen to construct nature as wilderness and thus apart from humans. Speaking as an authority on the matter, Patagonia suggests wilderness ideals as a method of conservation. Together with representations of nature as spec
This study investigates the relationship between narrative marketing and the intention to purchase mortgages. A sample of 88 individuals was recruited through a convenience sample. These 88 individuals were randomly selected into either the control or treatment groups. The treatment group was exposed to narrative marketing communication, and the control group was non-narrative marketing communicat
Cleantech—technologies with a reduced environmental impact—has emerged as an important set of solutions for addressing pollution and its impacts in China. The goal of this study is to map out wherein Chinese actors with first-hand knowledge of cleantech investments think the largest domestic investment opportunities are found, understand the underlying reasons, and then evaluate how consistently t
Due to internal conflicts and an economical conversion in the mid 1900’s, the Colombian society has seen a great social transition from rural to urbanised in the last 50 years. Apart from positive impacts of urbanisation on social factors, there are hydrological issues coupled to it. With the aim to assess the impact of urbanisation on runoff peak flows in Bogota, the historical change in impervio
In today’s connected world, businesses are increasingly going online. Additionally, the online industry is transforming into an international business arena, flourishing with opportunities to grow and expand. However, the internationalisation has raised a number of challenging issues. One of these challenges is foreign exchange. Foreign exchange is needed to sell and buy on markets with different
This thesis concerns the refugee debate in Denmark. The study is a comparative case study in order to examine different aspects of the refugee debate. The aim of the study is to investigate the different approaches with focus on the reactions to the movement of refugees in 2015 and the war in Ukraine in 2022. The study aims to highlight how the refugees are portrayed in the Danish debate and explo
Since the world witnessed a surge of cross-border investments as a source of economic activity, the relevance, determinants and nature of the phenomenon we call Foreign Direct Investments (FDI) has been studied extensively. The amount of empirical studies is not only extensive but also controversial, as the authors frequently reach contradictory conclusions in their search for determinants, relyin
For the C*-crossed product C*(Sigma) associated with an arbitrary topological dynamical system Sigma = (X, sigma), we provide a detailed analysis of the commutant, in C*(Sigma), of C(X) and the commutant of the image of C(X) under an arbitrary Hilbert space representation (pi) over tilde of C*(E), In particular, we give a concrete description of these commutants, and also determine their spectra.
The increase in efficiency of RF power generation for future large accelerators is considered a high priority issue. The vast majority of the existing commercial high-power RF klystrons operates in the electronic efficiency range between 40% and 55%. Only a few klystrons available on the market are capable of operating with 65% efficiency or above. In this paper, a new method to achieve 90% RF pow
Diffusion of ion-implanted Mn in semi-insulating (SI) and liquid encapsulated Czochralski (LEC)-grown GaAs has been determined employing the modified radiotracer technique. The effect of the growth technique and conditions on Mn diffusion in low temperature molecular beam epitaxy (LT-MBE)-grown GaAs has also been studied. Two distinct diffusion components appear in ion-implanted Mn diffusion in Ga
