Början av 1900-talet såg en oerhörd utveckling av nya forskningsområden inom fysiken. 1905 lade Einstein grunden för den speciella relativitetsteorin, som revolutionerade hur fysiker ser på själva tiden och rummet genom att föreslå att vi kan behandla de båda på samma sätt. Samtidigt växte kvantfysikens värld fram i jakten på en beskrivning av vår verklighets allra minsta beståndsdelar. KvantfysThis thesis derives the explicit form of the elements of the (1/2,1/2) representation of the Lorentz group, by actually performing a direct product of the chiral (1/2,0)- and (0,1/2)-representations. The Lorentz transformations of fourvectors are thereafter recovered from this direct-product representation, allowing the derivation of a transformation matrix between the fourvector- and direct produ

Abstract Purpose: The purpose of this thesis is to investigate how different types of fans experience personalization in sports marketing and to analyze how each Fan type can be motivated by understanding how their fan experience could be optimized further. Methodology: This study was a qualitative study. The study was carried out using an abductive approach where literature was combined with empi

In this thesis a number of methods for image classification are investigated. The main goal is to explore an approach based on functional data analysis and compare it with Neural Networks. The main idea is to view each image as a function and then capture the most important variation of each image class through Functional Principal Component Analysis. For comparing the methods the cifar10 dataset

After hundreds of years of urbanization a new trend is here. In Sweden, people are now leaving the big cities for a life in the countryside. How can urban designers work with rural areas and how do we do urban design in a rural way? This thesis investigates rural design in a Swedish village called Björkvik.

The village of Vilhelmina in South Lapland, Sweden is declining. Despite the general trend of urbanization more and more people are leaving Vilhelmina which have resulted in economic insecurity and a disassembly of basic public services and buildings. With new global trends like globalization, digitalization and global heating, this could potentially be changed and the thesis aims to investigate a

Lipase is one of the most useful enzymes in food industry, which can catalyze the hydrolysis and the synthesis of esters. However, the high cost due to the poor operation stability of lipase hinders the wide use of it. In present research, the stability of lipases in aqueous systems has been thoroughly studied, while research on lipases in non-aqueous systems is limited. In this work, the secondar

Social networking sites have become platforms of strategic importance to brand communication. However, to date, little is known about how brands should communicate with overstimulated digital natives on these platforms, especially concerning the language style they should use. In light of the phenomenon of brands increasingly adjusting to a human style of communication, this qualitative study take

Hur ofta reflekterar du över varifrån ditt dricksvatten kommer, vad det kostar och vad som krävs för att det ska nå hem till just dig? Det enkla svaret är: förmodligen nästan aldrig. Att förändra invanda beteendemönster är svårt. Framför allt när det inte tycks finnas tillräckligt med incitament för det. Men det finns faktiskt flertalet viktiga anledningar att vi bör bli bättre på att hushålla mClimate change will likely cause future water crises in many parts of the world, making it crucial for humanity to adapt to a life in which sustainable water use behaviors are key. To achieve this, organizations managing drinking water need increased knowledge on how to communicate conservation messages that will lead to behavior changes. This study used the framework the Behavior Change Wheel (B

The demand for higher education is quickly rising in the Sub-Saharan Africa region and the question of giving access to all members of society often comes down to financing. Many countries, including Tanzania, have opted for cost-sharing policies where the cost of education is split between the state and the individuals - leaving many without the possibility of attending higher education. This mas

OPO är en viktig strukturerad lipid för bröstmjölksersättning. I denna rapport beskrivs en ny metod för syntes av denna viktiga lipid med hjälp av en tvåstegs-enzymatisk alkoholys-esterifiering. Denna process är komplett med syntes i två steg, intermediär upprening och downstream processing.In this thesis work a simplified, solvent-free, two-step enzymatic method for producing tailored lipids for infant formula with more than 75% of palmitic acid in sn-2 position is described. This simple enzymatic process concept could be a future route towards OPO production or other tailored lipids with palmitic acid in position sn-2

Det sen-Triassiska massutdöendet (STM) som inträffade för omkring 201 miljoner år sedan är känt som ett av ”de fem stora” massutdöendena under Fanerozoisk tid. Massutdöendet påverkade främst marina ekosystem, vilket resulterade i en global minskning av ryggradslösa djur och utdöendet av konodonterna. Orsaken till STM kan anknytas till utbrotten av den Central-Atlantiska magmatiska provinsen (CAMP)The end-Triassic mass extinction (ETME) which occurred around 201 Ma is known as one of “the big five” mass extinction events of the Phanerozoic eon. Its effects were most severe on marine ecosystems, resulting in a global decline of invertebrate taxa and the complete extinction of the conodonts. The cause of the ETME can be attributed to the volcanic activity of the Central Atlantic magmatic prov

The purpose of this study was to illustrate how youth crime is constructed by three different political parties in Sweden; Moderaterna, Socialdemokraterna and Vänsterpartiet. The data in this study consists of several official political documents such as interpellations, motions and proposals. The documents were analyzed using perspective analysis, which stems from the social constructionist persp

Finding vulnerabilities in open source software is an important part of software security. Software security is in turn a vital part in risk management and making risk assessments. The purpose of this thesis is to help organisations make decisions about vulnerabilities they have in their software programs by helping them make their own risk assessment. Our research uses the Common Vulnerability Sc

This master thesis is performed in collaboration with Orkla Foods Sweden AB. The aim with this study is to investigate and compare nutritional contents in processed and homemade foods by investigating three selected ready meal products from the product range of Orkla Foods; meatballs, potato mash and pasta bolognese. This originates in a general perception that foods produced in a large-scale indu

Increasing waste electrical and electronic equipment (WEEE) has become a global issue that raises social and environmental impact concerns, and recycling and using recycled materials is proposed by policymakers and academics as a solution. Nevertheless, barriers still exist and result in low collection and recycling rates and underdeveloped recycling markets. This paper aims to first understand ho

Att utbilda och fortbilda sina anställda är en viktig process för företag. Det krävs mer och mer för att företag ska hålla kvar sina anställda och möjligheten att utvecklas och fortbildas är något anställda ser positivt på. När samhället har digitaliserats så har processerna förändrats och digitala systemstöd har blivit en vanlig del av HR-avdelningens arbetsuppgifter. Ett systemstöd som används f

This thesis used the qualitative textual analysis research method to study the blog content and comments of the DiDi Hitch algorithm controversial published by China News on Weibo. The purpose was to explore netizens’ views on gender bias and conflict in artificial intelligence consumption scenarios, as well as the drawbacks of DiDi Travel when adapting to artificial intelligence algorithms. In th

Aim: The aim of this study is to explore why German millennials use the green search engine Ecosia, as the organisation is experiencing considerable growth in Germany. Theoretical Perspectives: This thesis adopts well-established theories such as the Theory of Planned Behaviour, the Value-Belief-Norm Theory, and the Social Influence Theory. Moreover, the theoretical perspective consists of the Mu

Under 2020 och 2021 har en stor del av organisationer i Sverige och runt om i världen tvingats lägga om sin verksamhet till arbete på distans till följd av Covid-19 pandemin. Detta har lett till nya utmaningar inom inte minst informationssäkerhet, där policys och riktlinjer i många fall varit anpassade för arbete i organisationernas lokaler. Då den största risken inom informationssäkerhet är den m

This study investigates the cyber security threats and risks that are associated with forced teleworking during the period of Covid-19, when organizations have been forced to telework. Three different main aspects from two theories have been crucial when investigating the threats and risks associated with forced teleworking, which are the Social, Technical and Risk Tolerance aspects. This study