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Porphyrins are versatile aromatic building blocks that act as chiral probes, able to sense and amplify the chiral information given by a proper environment. Their ability to form chiral architectures makes them ideal candidates for designing smart devices for the stereospecific recognition. In this work, bile salts (BS), unconventional chiral surfactant with a peculiar facial amphiphilicity, are u

Today, digital pre-distortion (DPD) is the predominant technique for linearising the power amplifiers (PAs) used in telecommunication radio transmitters. However, conventional DPD implementations rely on power-hungry digital signal processing, making energy efficiency a critical concern. Compute in-memory (CiM) architectures have previously been demonstrated to provide significant efficiency gains

Skyddsspår är en banteknisk anordning som används tillsammans med skyddsväxlar för att minska risken för kollisioner mellan järnvägsfordon. Trots att skyddsspår normalt inte trafikeras byggs de med samma standard som huvudspår, vilket innebär användning av nytt spårmaterial och en relativt hög materialåtgång. Syftet med detta arbete har varit att undersöka möjligheterna att minska kostnader och utA safety siding (also referred to in some railway systems as a catch siding) is a railway infrastructure facility used in combination with trap points to reduce the risk of collisions between railway vehicles. Although safety sidings are normally not used for regular traffic, they are constructed to the same standard as main tracks, requiring new materials and a relatively high consumption of reso

A widely researched aspect of Aldous Huxley’s work is his later years’ advocacy for psychedelic drugs, in which he came to develop a strong psychological and philosophical interest. While the early novel Brave New World (1932) presented the fictional ‘perfect drug’ soma in dark, authoritarian tones, the autobiographical essay The Doors of Perception (1954) evaluated the experience of mescalin ther

Uppsatsen ”Den stumma välgörenheten” är en kritisk diskursanalys författad av Bruno Ekwall, Stina Lamke, Hanna Helgertz och Signe Holgerson vid Medie- och kommunikationsvetenskapliga Institutionen på Lunds universitet. Problemet syftar till att undersöka hur MrBeasts välgörenhetsarbete visualiseras efter YouTubes algoritmiska logiker som kännetecknas av korta och underhållande format, samt vad det

I denna studie undersöktes eventuellt samband mellan unga vuxnas upplevda autonomi och arbetssökar-self-efficacy. Studien undersökte även sambandets eventuella skillnader utifrån utbildningsbakgrund eller åldersgrupp. Unga vuxna (20-29 år) rekryterades för att besvara en självskattningsenkät. Enkäten inleddes med bakgrundsfrågor (utbildningsbakgrund, ålder och om de varit i en arbetssökarprocess sThis study examined the potential relation between young adult’s perceived autonomy and job search self-efficacy. The study also examined whether the relationships possibly differed by educational background or group of age. Participants, 112 young adults (20-29 years) were recruited to answer a self-report questionnaire. The questionnaire was introduced with background questions (educational back

Följande uppsats har undersökt sambandet mellan subjektivt välbefinnande och fyra centrala aspekter av studentlivet i Lund: Socialt stöd, Self-efficacy, engagemang samt alkoholvanor och attityd till alkohol. Bakgrunden till studien var forskning kring en minskning i studenters välbefinnande samt den unika sociala kontexten i Lunds studentliv, starkt karakteriserad av sociala nätverk, engagemang ocThe following study has examined the relationship between subjective well-being and four key aspects of the student life in Lund: Social support, Self-efficacy, engagement in student organizations and alcohol consumption & attitude. The study was motivated by previous research regarding students mental well-being decreasing in the past years as well as the unique social context of Lund’s stude

Multiplayer onlinespel utgör en globalt stor social arena där kommunikation sker via röst- och textchatt. En del av denna kommunikation mellan spelare tenderar att bli negativ och benämns då som cyberaggression. En möjlig förklaring till cyberaggressivt beteende inom gaming är Albert Banduras teori om moralisk frånkoppling och användandet av teorins olika frånkopplingsmekanismer. Syftet med studieMultiplayer online games constitute a large global social arena in which communication takes place through voice and text chat. Research has shown that this communication is often characterized by cyberaggressive behavior. One possible explanation for such behavior is Albert Bandura’s theory of moral disengagement and the use of disengagement mechanisms. The aim of the study was to investigate the

Syftet med studien var att undersöka huruvida work-study conflict och study-work conflict predicerar upplevd stress och välbefinnande hos heltidsstuderande universitetsstudenter som arbetar deltid, samt om upplevd stress predicerar välbefinnande. Studien genomfördes med en kvantitativ tvärsnittsdesign där data samlades in genom en webbaserad enkät där deltagarna besvarade etablerade självskattningThe aim of the study was to investigate whether work-study conflict and study-work conflict predict perceived stress and well-being in full-time university students who work part-time, and whether perceived stress predicts well-being. The study was conducted with a quantitative cross-sectional design where data were collected through a web-based questionnaire where participants answered establishe

Framtida samhällsutmaningar och ett ökat behov av teknisk kompetens gör det viktigt att förstå hur en bredare grupp unga kan attraheras till ingenjörsyrket. Föreliggande studie undersöker hur olika framställningar av en ingenjörsroll påverkar ungas intresse för yrket. Studien utgår från målkongruensteorin som förklarar att karriärintresse påverkas av huruvida individer uppfattar att ett yrke kan uFuture societal challenges and the need for technical competence highlight the importance of understanding how engineering can attract a broader group of young people. The present study examines how different framings of an engineering role influence young people’s interest in the occupation. The study was based on Goal Congruity Theory, which suggests that career interest is shaped by whether peo

Sociala medieplattformar, såsom TikTok, är populära bland miljarder användare världen över. Online, videos när man dansar eller sjunger skapas och tittas på men andra typer av videos finns också. Som medicinsk information eller djupt personliga anekdoter om att leva med mental ohälsa. Denna studie hade som syfte att undersöka hur sökordet ‘OCD’ porträtteras på tiktok, ur perspektivet av en ny anväSocial media platforms, such as TikTok, are widely popular with billions of users. Online, videos of people dancing and lip-syncing are being made and watched. But other types of content such as medical information and deeply personal stories of mental health are also being shared. This study aimed to examine how the search term ‘OCD’ is being portrayed on tiktok, from the perspective of a new use

Urban sustainability depends on both green infrastructure and safe, accessible cycling networks, yet these systems often come into conflict. Tree roots can disrupt paved cycle paths, causing surface deformation that compromises user comfort and safety while increasing maintenance demands. This thesis examines the drivers of root-related damage in cycle infrastructure, focusing on interactions betw

Transportsektorn står inför ökande krav på mer hållbara transportlösningar. Supercykelvägar har introducerats som ett verktyg för att främja cykling genom att förbättra trafiksäkerhet, komfort, tillgänglighet och attraktivitet. Syftet med denna studie är att undersöka användarnas upplevelser av supercykelvägen mellan Laröd och Helsingborg C. Studien genomfördes med hjälp av en webbaserad enkät rikThe transport sector faces increasing demands for more sustainable transport solutions. Bicycle superhighways have been introduced to promote cycling by improving safety, comfort, accessibility, and attractiveness. This thesis investigates users' perceptions of the bicycle superhighway between Laröd and Helsingborg Central. A web-based survey was conducted among residents in Laröd and surround

Technical drawings play an important role in many industrial processes, including product development, manufacturing, and lifecycle management, by representing the product definition. The purpose of the study was to investigate which processes influence technical drawing creation and management, what challenges are associated with these processes, and how these challenges can be addressed through

This thesis investigates the role of regime dynamics in sector-level asset returns. Based on the observation that financial markets exhibit structural changes that are not fully captured by standard linear factor models, this study examines whether incorporating regime information can improve the modeling and understanding of sector returns. Using US sector-level return data, an integrated framew

För att underhålla järnvägar på rätt sätt behöver arbetare kunna nå spåret snabbt och enkelt. Detta examensarbete undersöker hur tillgången till järnvägsanläggningar fungerar idag och vilken skillnad servicevägar gör för underhållsarbetet. Studien bygger på intervjuer med åtta personer från Trafikverket och järnvägsunderhållsföretag, data från felrapporteringssystemet Ofelia för åren 2000–2023 samTo maintain railways properly workers need to be able to reach the track quickly and easily. This thesis looks at how access to railway facilities works today and what difference maintenance access roads make for maintenance work. The study is based on interviews with eight people from Trafikverket and railway maintenance companies, data from the fault reporting system Ofelia covering the years 20

This thesis investigates the fluid dynamics and phase behaviour of active microswimmers in unbounded two-dimensional suspensions. The first part derives analytical expressions for fluid correlations, fluid velocity variance, and energy spectra of non-interacting swimmers. While expressions derived from the Stokes equations, hence ignoring inertial effects, capture qualitative trends, they show qua

This thesis investigates the process optimisation, fabrication, and electrical char- acterisation of AlGaN/GaN high-electron mobility transistors (HEMTs). Before device fabrication, etching processes for AlGaN recess structures were optimised, followed by an analysis of SiNx and Al2O3 for use in device isolation and in the gate stack. The fabricated devices incorporated intentional variations in t