Matematiker undersöker ofta talsystem som är annorlunda från de vanliga talen vi är vana vid. Ett exempel på ett sådant talsystem är timmarna på en klocka, där 13 = 1 och 9 + 6 = 3. Ett mindre självklart exempel är sekvenser av drag på en Rubik's kub. Man kan addera ihop två dragsekvenser genom att göra dem efter varandra, och det går att göra algebraiska manipulationer med dessa drag precis sThis thesis uses the strategy of Dyckerhoff-Kapranov to show the associativity and unitality of Hall Algebras for proto-abelian categories. After a more classical introduction to Hall algebras, we show that the Waldhausen S-construction of a proto-abelian category is a 2-Segal simplicial groupoid, and use this to construct a monoid object in the category of spans in groupoids. We then use this mon

Forskningsfrågor: Vilken typ av CSR-arbete, miljömässigt eller socialt, främjar varumärkeslojaliteten och köpintentionen mest hos studenter vid Lunds universitet vid klädköp? Resulterar ökad varumärkeslojalitet i en högre köpintention? Syfte: Studien syftar till att kartlägga och utforska vilket av områdena socialt och miljömässigt CSR-arbete som i högst grad främjar varumärkeslojalitet och köpint

The tall perennial herb Gladiolus imbricatus is an endangered species within plant communities of semi-natural grasslands. Coastal meadows, extensively managed as pastures or meadows, are amongst its favored habitats and thrive with biodiversity in fauna and flora. However, following major land-use changes during the last century, proactive endeavors are necessary to prevent a loss of rare fauna a

Den svenska elkonsumtionen och elproduktionen förväntas öka drastiskt de närmsta åren. Detta ställer krav på elnätet som därmed behöver stärkas och byggas ut för att tillvarata den el som förväntas. Parallellt med detta behöver den gröna omställningen av industrisektorn påskydas om EU ska lyckas uppnå klimatmålen till 2050. För att dekarbonisera industriella processer kan grön vätgas användas. GenThe expected increase in both consumption and production of electricity strains the Swedish electricity grid, necessitating both reinforcement and expansion. Concurrently, the need to decarbonise heavy industry is becoming more urgent to achieve the EU Climate neutrality goal by 2050, with hydrogen anticipated as a key player. Hybrid energy systems that combine the generation of renewable electric

This thesis examines the gendered dynamics of entrepreneurial pitching, focusing on the experiences of female founders in Germany. Despite the continued growth of female entrepreneurship, there are still significant challenges, particularly in relation to fundraising. Therefore, this thesis focuses on pitching situations as a strategy to raise funding. A qualitative methodology is used, to explore

Amyloid beta (Aβ) proteins are a group of proteins able to form fibrillar aggregates that are linked to the adverse neurological effects seen in Alzheimer’s disease [11]. The molecular mechanisms that lead to the Aβ aggregation are complex processes, and efforts to understand them are being made by investigating the kinetics and thermodynamic properties of the protein. The solubility of the protei

Title: Retro Rewind - Unveiling the Power of Nostalgia in Fashion Retro Branding and Its Influence on the Brand Perception of Young Consumers Date of the Seminar: 31 June 2024 Course: BUSN39 Degree Project in Global Marketing Authors: Juan Bibudis and Tim Mårtensson Supervisor: Tommy Shih Examiner: Mats Urde Keywords: Nostalgia, identity, perception, Consumer Culture Theory (CCT), possessions, con

Leaf-level vegetation dry matter and water content as plant traits have been commonly studied, but few studies have investigated the capabilities of satellite remote sensing in estimating community-level dry matter content as percentage (DMCaP) in forage crops for agricultural applications. It is a crucial quality factor for maximizing nutrient yield and producing palatable forage. In this thesi

Purpose: To investigate whether a firm's hedging activities have an impact on the cost of debt. Moreover, the study aims to investigate any differences between the three categories of risk: foreign exchange rate risks (FX), interest rate risks (IR) and commodity price risks (CM) as well as the sources of benefit from hedging. Methodology: The study is conducted on a panel data set, and the ut

The aim of this study is to critically examine the strategic challenges in an early-stage multi-stakeholder innovation project, which has the aim to develop a novel solution. A qualitative single case study consisting of seven semi-structured interviews were conducted to identify strategic challenges as well as key success factors. Furthermore, an abductive approach was adopted in order to elabora

Bakgrund: Kvinnor som utsätts för våld i nära relation är ett globalt hälsoproblem. Våldet har ofta långvariga hälsokonsekvenser och påverkar även kvinnornas vardag negativt. I dagsläget saknas arbetsterapi samt arbetsterapeutisk forskning för denna målgrupp och det är idag oklart hur våldet påverkar aktiviteter i vardagen för våldsutsatta kvinnor. Syfte: Med stöd av Model of Human Occupation sammBackground: Women subjected to intimate partner violence face a global health issue. The violence often has long-term health consequences and negatively affects women's daily lives. Currently, there is a lack of occupational therapy and research in this field for this target group, and it is unclear how the violence impacts daily activities for these women. Purpose: Supported by the Model of H

The thesis examines the portrayal of the divine in the works of Jalāl al-Dīn Muḥammad Rūmī and Walt Whitman, specifically through the Masnavi and Leaves of Grass. Thereafter, the study conducts a comparative analysis between Whitman and Rumi’s perception of the divine. The result from the study finds that Rumi’s God is a God integrated into the whole of existence, bound by a mutual sense of love

Discourse of reshoring as a possible risk mitigation strategy during times of uncertainty has during the recent decade become more prominent. This thesis examines the casual relationship between uncertainty and reshoring within the electrical manufacturing and pharmaceutical manufacturing industries in the U.S. The research question proposed is: How efficient are measures of uncertainty in predict

Seminar Date: 2024-05-29 Course: BUSN79 - Degree Project in Accounting and Finance Authors: William Gustafsson and Jacob Linder Examiner: Anna Glenngård Five key words: CEO letters, sentiment analysis, agency theory, firm performance, Tobin's Q. Purpose: Discern with the help of a new machine learning model whether the sentiment expressed in CEO letters can offer meaningful insights into

Glioblastom är en mycket aggressiv hjärntumör som trots över 100 år utav forskning i snitt dödar patienter åtta månader efter diagnos. I denna studie undersöks alternativa behandlingsmetoder för den svullnad som drabbar patienten när tumören växer och opereras. Om man lyckas hitta ett alternativ till kortison, som idag används, finns det stor potential i att behandla glioblastompatienter med virusGlioblastoma is a highly aggressive brain tumor that kills roughly 9,000 Americans yearly. Although a known disease for over a century, little progress has been made in treatment development. A breakthrough may be on its way as recent research suggests glioblastoma patients can be treated with virus injections, oncolytic virotherapy in medical terms. However, this treatment method is somewhat inhi

The multifunctional cryogels were synthesized by atom transfer radical polymerization (ATRP) using hemoglobin as a biocatalyst (ATRPase) and post-modified to purify hemoglobin and glycoprotein simultaneously. Meanwhile, the optimization of purified glycoprotein was also conducted by introducing epoxy group nanoparticles. The nanoparticle concentrated concanavalin A, the ligand, to adsorb glycoprot

Kurdish women’s resistance, self-preservation, reclamation of their language, surviving, and living undeniably as a Kurdish woman is to defy and resist colonial violence. The existence of Kurdish women as Indigenous peoples across four different colonial powers is within itself an act of resistance. This study illuminates the significance of the colonial violence against Kurdish women and their ev

Purpose: This study aims to determine if a greenium exists for bank-issued green bonds compared to their brown counterparts and to examine the impact of green policies on the European bond market. Methodology: This study takes on a deductive scientific approach along with an econometric approach for which OLS regression models are estimated. The regressions use yield to maturity (YTM) as the dep

Purpose: The purpose of this thesis is to provide a deeper understanding of how team dynamics influence team performance, and thus team effectiveness, in an extreme environment. Methodology: In order to address the research question, a qualitative research study based on interpretive epistemology has been conducted. A discourse analysis is used with the aim to analyze the Formula 1 drivers’ use of

Stockholm Vatten och Avfall (SVOA) blir regelbundet kontaktade av verksamheter som vill avleda sitt kylvatten till det kommunala spillvattennätet. Eftersom kylsystem kan se mycket olika ut och föroreningsinnehållet kan variera kraftigt, saknar SVOA i dagsläget tillräcklig kunskap om hur vanligt det är att verksamheter avleder kylvatten till spill- eller dagvattennät, samt vilka tillskottsvolymer oThe company for municipal wastewater treatment in Stockholm, Stockholm Vatten och Avfall (SVOA), is regularly contacted by companies who wish to discharge water from their cooling systems to the municipal sewage system. Cooling systems, as well as the pollutant content in cooling water, can however vary greatly. SVOA is thus lacking knowledge of potential volumes and contaminant levels of cooling