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En funktion är inom matematiken ett samband mellan två kvantiteter. Man kan se det som en maskin som tar in ett tal och ger tillbaka ett annat. Ett exempel på en funktion är hastigheten av en bil som en funktion av tid: du ger funktionen en tidpunkt, och funktionen ger tillbaka bilens hastighet vid denna tidpunkt. Inom matematiken är man ofta intresserad av att studera funktioner med vissa givna eWe introduce the basic theory of vector-valued reproducing kernel Hilbert spaces, and use this language to prove the classical Pick interpolation theorem using the commutant lifting theorem applied to operators on the Hardy space H^2(D). Two very general versions of the commutant lifting theorem due to Shimorin are then proved for vector-valued reproducing kernel Hilbert spaces, and as a corollary

This thesis investigates superconductivity in novel planar Josephson junctions fabricated from a hybrid Al/EuS/2DEG (InGaAs/InAs/InGaAs) heterostructure. Using electron-beam lithography, selective etching, and atomic layer deposition, Josephson junction devices, constrictions, and SQUID geometries were fabricated and a selection of the devices were characterized at millikelvin temperatures. The me

This introductory chapter outlines the foundations of the study by contextualizing the role of legitimacy, corporate responsibility, and crisis communication in contemporary global business. It begins by establishing the theoretical significance of organizational legitimacy, particularly in ethically sensitive industries such as infant nutrition. The chapter problematizes the disjunction betwe

Amyloid fibrillering, en process där peptider (små protein) klumpas ihop, är idag associerat med en rad sjukdomar såsom Alzheimers sjukdom och diabetes typ 2. En peptid som är associerad med diabetes typ 2 är IAPP. Peptiden har hittats fibrillerad i bukspottskörteln i många patienter med diabetes typ 2. I tidigare studier har det hittats en koppling mellan små plaster, så kallade nanoplaster, och The impact of nanoparticles on amyloid fibrillation has been studied for some time due to the amount of nanoparticles that can be found in nature due to human release. Previous studies have shown that different nanoparticles may affect the length of the lag phase of the fibrillation process. This has been studied on peptides such as amyloid beta and islet amyloid polypeptide. Research has shown th

The concept of the library has evolved over time, adapting to the changing needs of society and there are various types of libraries, from public institutions to private collections. Today, digitalization is reshaping how we access information and interact with the world, yet libraries and books continue to hold an essential role as spaces for reflection, learning, and community connection. Smal

Denna kandidatuppsats undersöker hur medelstora och stora svenska företag uppfattar datakvalitet vid design och implementering av AI-drivna chattbotar för internt bruk. Studien bygger på fem semistrukturerade intervjuer med yrkesverksamma som varit direkt involverade i utvecklingsarbetet och belyser hur organisationer ser på faktorer som datans noggrannhet, fullständighet och tillförlitlighet. ResThis bachelor’s thesis investigates how medium and large Swedish enterprises perceive data quality during the design and implementation of AI-powered chatbots for internal use. Through five semi-structured interviews with professionals directly involved in the chatbot development, the study explores organisational perspectives on data accuracy, completeness, and reliability, as well as key drivers

This study explores how airports develop and repeat specific behaviors that help them remain innovative over time. As digital needs increase, climate regulations tighten, and passengers demand better experiences, airports must remain dependable while also finding ways to adapt. This study examines the behaviors and habits that make innovation a part of everyday work. To further understand this, tw

Vad kan stoppa oss från att hitta mörk materia med LDMX? När astronomer tittar på de största objekten i vårt universum ser de att stora strukturer, så som som galaxer och galaxkluster, inte rör sig som de förväntar sig. Det visar sig att det finnas en stor mängd extra materia som vi inte kan se. Denna osynliga materia kallar vi ’mörk materia’. Många teorier för vad mörk materia består av har lagtAccording to astronomical observations of galaxies and other large scale dynamics, the universe contains more mass than what is visible. This missing mass is called "dark matter" and have been a subject of study for physicists for decades. The Light Dark Matter eXperiment (LDMX) is a proposed experiment with the purpose to search for dark matter in a low mass range that not many experime

Inom de översättnings- och litteraturvetenskapliga fälten i Sverige saknas en tolkningstradition som tar hänsyn till översatta texters särskilda villkor samtidigt som de inkluderar dessa som en del av författaröversättares totala litterära produktion. Syftet med denna studie är därför att visa hur en analys som tar det översättande skrivandet i beaktning möjliggör en fördjupad förståelse av det li

This project investigates non-planar 3D printing techniques using a robotic system and Polylactic Acid (PLA) filament, drawing inspiration from the spider web’s structure. The primary aim is to develop methods that optimise material usage while maximising print coverage over large areas. Ultimately, the research seeks to expand the capabilities of robotic manufacturing and uncover new architectura

The global shift in the food system towards more sustainable diets has made legumes such as chickpeas, lentils and beans increasingly important due to their nutritional and environmental benefits. But despite these benefits that they offer, their consumption remains relatively low. A key reason for this, is the digestive discomfort they cause such as bloating and flatulence alongside reduced miner

The increase in global competitiveness and the advancement of digital technology are compelling organizations to innovate by enhancing their product offerings with digital services. Although this phenomenon known as digital servitization is well researched in larger organizations, there is less investigation on how small and medium enterprises (SMEs) manage this trend, particularly in Sweden. This

In this work, we present the design, fabrication, and characterization of InAs-based nanowire heterostructures with epitaxially defined InP and GaAs potential barrier segments, aimed at understanding and demonstrating the functionality of a double-barrier nanowire heterostructure as a hot-carrier photovoltaic, in which InP and GaAs barriers encapsulate an InAs absorber region, where hot carriers a

This masters thesis handles segmentation of blood vessels in Wistor-rat lungs, scanned by a µm-CT scanner. These scans are very detailed 3D-volumes and have been rescaled to a more manageable size of 1024 × 1024 × 1024 voxels per volume. The main goals of the thesis is to find a more efficient way to perform segmentation in medical images and thus semi-supervised segmentation techniques have been

Från industriella restprodukter till grönt drivmedel – två vägar mot förnybara bränslen. Bio-olja från skogsrester kräver uppgradering för att kunna behandlas i befintliga oljeraffinaderier. Två innovativa processer visar potential, men tekniska och ekonomiska utmaningar framstår. Att minska beroendet av fossila bränslen är avgörande för att nå klimatmålen. Ett lovande alternativ är att producerThis master’s thesis evaluates the commercial-scale feasibility of two processes that upgrade lignocellulosic bio-oil: dewatering and derivatization upgrading (DDU) and green cooking and cleaning (GCC). Both processes aim to produce upgraded bio-oil suitable for co-processing in existing oil refineries, though they differ significantly in complexity. GCC includes the entire conversion from raw bio

Titel: Strategisk diversifiering av värdeerbjudanden i T-KIBS Författare: Daniel Danielsson och Theo Lönnebacke Handledare: Ola Alexanderson Bakgrund: Teknologibaserade kunskapsintensiva tjänsteföretag (T-KIBS) bedriver ofta projektbaserade affärer där teknisk expertis står i centrum. Inom dessa relationer finns en växande medvetenhet om potentialen att skapa ytterligare kundvärde genom komplet

Potentialen av tillräcklighet för hållbar proteinkonsumtion Det går att leva ett rikt liv och samtidigt bidra till sänkta växthusgasutsläpp. Genom att fokusera på tillräcklighet kan grundläggande behov uppfyllas samtidigt som tid, energi och pengar kan läggas på sådant som får en att må bra. Vanligen associeras principer om tillräcklighet med minskad materiell konsumtion, men det går också att tilOne measure required to reduce greenhouse gas emissions is changed consumption behaviours in affluent contexts. This might be motivated by sufficiency, and while the concept is often related to reduced material consumption, its practical implications regarding food consumption have not been explored to the same extent. To investigate how the literature on sufficient consumption may offer new insig

This thesis addresses the need for robust price forecasting in the volatile Rare Earth Elements (REEs) markets. With a specific focus on neodymium, given it is the most utilized REEs, we investigate how feature selection can be effectively performed to guide REE price forecasting by proposing and evaluating three distinct methodologies: Adaptive Lasso, Post-Double Selection (PDS), and an integrate