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Catalytic oxidation of ammonia (NH₃) is the key reaction in the Ostwald process for industrial nitric acid production. The reaction yields three nitrogen-containing products, N₂, N₂O, and NO, and the selectivity between them depends on the catalyst and the operating conditions. Most of what is known comes from steady-state studies on platinum and rhodium. This thesis studies what happens when the
Patienter med depression uppvisar ofta kognitiva nedsättningar. Tidigare forskning har visat inkonsekventa resultat avseende vilka kognitiva funktioner som påverkas och i vilken utsträckning. Dessa variationer skulle kunna förklaras av depressionens heterogena karaktär samt att tidigare studier ofta har rapporterat resultat i sammansatta mått på kognitiv funktion. Denna studie undersökte kognitiv Depression is associated with cognitive impairments, yet findings remain inconsistent regarding which cognitive functions are affected and to what extent, potentially due to disorder heterogeneity and reliance on composite measures of cognitive functioning in previous research. The present study examined cognitive functioning in individuals with anhedonic depression using objective neuropsychologi
Sweden has established itself as one of the world’s most dynamic environments for digital innovation, producing globally successful B2C platform companies despite its small domestic market. Building on strong social infrastructure, high digital maturity, and adaptive legal and economic systems, the country has fostered firms such as Spotify, Klarna, Skype, and Mojang Studios, demonstrating how Swe
In recent decades, organizations have undergone a fundamental shift from selling physical products to offering services and most recently, data-driven offerings. This transition has elevated data to a central organizational resource and given rise to new service models, most notably Data-as-a-Service, DaaS. While the costs associated with developing and maintaining data infrastructure are often me
There are arguments around the nature and boundaries of the moral domain, with this current paper aiming to delineate one of these arguments. With a basis in George Sher's (2021) discussion of cognitions (beliefs, fantasies, attitudes and some thoughts), the paper defends the notion that they are, in fact, morally relevant. By combining the logic of truth-aptness with the phenomenology of agen
Reclaimed asphalt pavement (RAP) is one of the most widely recycled materials in the world and its use in asphalt mixtures has increased significantly due to environmental and economic benefits. However, incorporation of RAP may alter mechanical performance of pavement, particularly its resistance to cracking and rutting. This study aims to investigate the influence of RAP content on mechanical be
Stormfloder betraktas som ett stort hot mot ekosystem och infrastruktur längs kuster, och hotet ökar på grund av det nuvarande föränderliga klimatet, med alltmer frekventa översvämningshändelser, erosion och sedimentomlagring. I detta sammanhang blir insatser för att identifiera spår av stormfloder i geologiska arkiv allt viktigare för att förstå effekterna av sådana händelser på miljön. Denna stuStorm-surges are considered a major coastal threat to ecosystems and infrastructure in the current changing climate, with increasingly frequent flooding events, erosion and sediment redistribution. In this context, efforts to identify traces of storm-surges in the geological record are becoming increasingly important to understand the impacts of such events on the environment. This project investi
Urban densification is increasingly promoted as a strategy for sustainable urban development, yet it poses significant challenges for access to daylight and sunlight, particularly in Nordic climates where natural light is limited for large parts of the year. In Sweden, ensuring adequate daylight in residential environments is both a regulatory requirement and a critical factor for occupant well-be
In times of public crises, state-centered governance often faces delayed response and limited local reach, leaving gaps that formal institutions alone cannot fill. It is precisely in these gaps that informal organizations and community networks become critical—yet how such organizations sustain grassroots resilience across both ordinary times and moments of crisis remains under explored. My thesis
Rapid urbanization and infrastructure expansion often lead to spatial, ecological and social fragmentation in existing urban areas, where functions, landscapes and neighborhoods are physically and functionally disconnected. Urban developments are often planned as isolated interventions, neglecting an integration into the broader landscape. These problems are particularly acute in cross-border terr
Kognitiv förmåga är en central del av barns utveckling, och bedöms ofta med psykologiska test eller skattningsskalor. Hur väl dessa olika metoder samvarierar är oklart, särskilt för yngre barn. I klinisk praktik är det vanligt att använda sig av proxyskattningar vid undersökning av yngre barn, eftersom deras förmåga att använda självskattningsformulär antas vara låg. I vilken utsträckning yngre baCognitive ability is a central aspect of child development, and is commonly assessed using standardized psychological tests or rating scales. How well these different methods correlate remains unclear, particularly in young children. In clinical practice, proxy ratings are often used when administering questionnaires to younger children, as they are assumed to have limited self-report reliability.
Opera and highbrow culture have traditionally occupied a position of high prestige, but over the course of the last few decades, that foundation has seemingly weakened. Traditionally in-person mediums such as opera are more bound to physical spaces and therefore more lim-ited in reach and exclusive than most mass media products, especially with increasing digi-talization. Previous research has mai
The thesis addresses inventory planning in a multi-site food manufacturing network where inventory decisions are currently made using differing local routines, planning parameters, and levels of analytical support. The single- company case study is conducted at a bakery subsidiary of a large agricultural cooperative based in northern Europe that operates over 30 bakeries. As a result of recent bak
This thesis investigates how people who have experienced loss, reason about grief, death and AI-mediated posthumous communication in contemporary digital culture, using the episode Be Right Back from the well-known TV series Black Mirror as a shared point of reference. Given the rapid development and everyday normalisation of generative AI, griefbots and other forms of simulated companionship, the
As industrial sectors and digital infrastructure expand, the global demand for high-volume, reliable manufacturing of thermal management solutions like heat exchangers continues to accelerate. This thesis investigates the design and optimization of an automated robotic assembly cell for heat exchanger production at Alfa Laval using Discrete Event Simulation (DES). The primary objective was to defi
Betong är ett av byggsektorns mest använda material, men cementproduktionen står för stora koldioxidutsläpp. Ett sätt att minska klimatpåverkan är att reducera andelen cementklinker genom att använda alternativa bindemedel. Vulkanisk puzzolan från Island, VPI är ett tillsatsmaterial från Heidelberg Materials Cement Sweden som kan användas tillsammans med cement som bindemedel i betong. TillsatsmatConcrete is one of the most widely used materials in the construction sector, but cement production is associated with a significant climate impact. One way to reduce this impact is to decrease the proportion of cement clinker by using alternative binders. Volcanic pozzolan from Iceland, VPI, is a supplementary material supplied by Heidelberg Materials Cement Sweden that can be used together with
The Swedish office real estate market has entered a period marked by rising vacancies, accelerating polarization between submarkets, and a structural reorientation of tenant demand partly as a result of hybrid work trends. Earlier research has established that tenant characteristics, creditworthiness, sector exposure, contract structure, and concentration bear directly on risk, property values, an
The development of controllable thermal photon sources is essential for the advancement of quantum computers, specifically for the development of sensitive detectors and the study of heat transport in superconducting circuits. This thesis investigates a device featuring a metallic copper island acting as a variable thermal bath, coupled to a superconducting microwave line through a clean interface
