Mänskligheten har länge varit fascinerad av jordliknande planeter som kretsar kring avlägsna stjärnor. Vi har skickat teleskop ut i rymden för att studera dessa planeter, och för att hitta mönster bland deras egenskaper. Kepler-teleskopet var ett av de första sådana teleskop, och avslöjade den stora variationen av planeter i vår galax. De vanligaste typerna av planeter som hittades var så kallade Context. The radius valley is the bimodal distribution of planet radii Rp = 1 − 3.9R⊕, which separates super-Earths from sub-Neptunes. One possible explanation is that stellar clustering in the birth environment of the host star could cause sub-Neptunes to shed their gaseous envelope and turn into super-Earths (Kruijssen et al., 2020). Using the calculated phase space density of host stars as a me

Vi bor i galaxen Vintergatan. En plats som vi kan kalla hemma i ett allt växande universum. Men hur mycket vet vi egentligen om våran galax? Det finns mycket som återstår att upptäcka om våran galax. Ett exempel på någonting som vi inte vet hittas när vi observerar den galaktiska disken. Detta är regionen som expanderar horisontellt från det galaktiska centrumet. Disken är uppdelad i en tunn ochThis paper discusses the effects of different types of contamination on 4MOST stellar spectra. Three main types of contamination were tested. These were, a smooth function over the continuum, changing the H-alpha line, and adding telluric contamination. By knowing how much these experiments affected the generated values, it was possible to understand the importance of avoiding overfitting or under

Stellar lithium abundances can help answer multiple unanswered questions within modern astrophysics. Lithium is fragile in comparison to other elements found in stellar atmospheres. Consequently, its abundance within the stellar atmosphere is depleted by different processes. Studying these lithium abundances gives insight into the evolution of the stars and the processes within their interiors. Th

Problem: The Milky Way disk consists of two distinct components, the thin and thick disk, each with unique kinematical, elemental, and age-related properties. Among all the properties considered, age stands out as the only one that does not exhibit significant overlap, thereby offering clearer separation between the populations. Stellar ages, determined through isochrone fitting, are reliable main

From a market perspective, Japan is interesting for Swedish companies, especially those with sustainable and digital capabilities. However, the Japanese market is complex, with high quality demands and deep relationships, which require foreign companies to understand how their assets transfer locally. This thesis explores how ten Swedish subsidiaries in Japan use sustainability and digitalization

Carbon capture utilization and storage (CCUS) is set to play a key role in decarbonization. Most of the technologies are yet to be seen on commercial scale. Denmark is in the process of establishing some of the first large-scale CCUS value-chains. Through a combination of document analysis and interviews, I study the ideas driving the current roll-out of CCUS in Denmark. To do this, I make use of

Background: Glucose-dependent insulinotropic polypeptide (GIP) was the first incretin identified and plays an essential role in the maintenance of glucose tolerance in healthy humans. Until recently GIP had not been developed as a therapeutic and thus has been overshadowed by the other incretin, glucagon-like peptide 1 (GLP-1), which is the basis for several successful drugs to treat diabetes and

Organ function depends on the three-dimensional integrity of the extracellular matrix (ECM). The structure resulting from the location and association of ECM components is a central regulator of cell behavior, but a dearth of matrix-specific analysis keeps it unresolved. Here, we deploy a high-resolution, 3D ECM mapping method and design a machine-learning powered pipeline to detect and characteri

The tyrosine residue in amyloid-β (Aβ) is susceptible to attack by various reactive nitrogen intermediates, leading to the formation of 3-nitrotyrosine (3-NT), a post-translational modification associated with the pathophysiology of Alzheimer's disease (AD). Although considered a “dead-end” product, emerging evidence suggests that 3-NT can be reduced to 3-aminotyrosine (3-AT) in vivo. This study a

This thesis investigates the current state and future potential of Kenya’s bags and sacks packaging industry, with a focus on transitioning toward more sustainable practices. Despite policy efforts like the 2017 single-use plastic bag ban, the industry faces structural and economic barriers to adopting sustainable alternatives. The aim of this study is to assess macro- and micro-level factors shap

Vad vet vi om exoplaneter? Studien av planeter har fascinerat mänskligheten sedan för de gamla grekerna, där deras rörelse över himlen representerade allt från gudar till ändringen av säsonger. Vår förståelse för de andra världar i vårt sol system, från gas jätten Jupiter, till de steniga ytan av Mars, har bara förbättrats med tiden. Detta är mest noterbart i det senaste århundrade, med flertal sSince the first discovery of exoplanets, they have been one of the main interests in contemporary astrophysics, with over 5000 confirmed today. One of the current goals is linking the chemical composition of their atmospheres to their formation by modelling the expected abundances for different formation conditions and comparing them to observations. These models require that the parameters of the

Background: The Case Company is in the process of implementing a new inventory control policy for their spare parts distribution, from a single-echelon inventory control policy, specifically what is called an (R, Q) policy, to a multiechelon inventory control policy called Distribution Requirements Planning. It is of interest to see how this new policy will perform, and the effect this change has

In today's society a technological revolution is taking place and one example of this is animal supervision which is beginning to move from manual methods to more technical monitoring solutions. Digital animal monitoring is a field under development and has attracted interest among both livestock owners and researchers. The technology includes for example integrated systems with cameras and GP

Efficient inventory management is crucial for successful supply chain management with it attributing up to 30% of an organization’s supply chain costs. A key strategic decision in inventory management remains whether to centralize or decentralize inventory with both decisions having their advantages and disadvantages. Most studies highlight the importance of an organizations supply chain network i

In a highly volatile and interconnected global environment, companies are increasingly exposed to disruptions such as pandemics, geopolitical conflicts, and natural disasters. These events can severely impact supply chains, especially for companies that rely heavily on external suppliers. The case company, a video surveillance technology provider, faces significant risks due to its limited bargain

Additiv tillverkning (AM), vanligtvis kallad 3D-utskrift, erkänns som en transformativ metod inom modern tillverkning. Tekniken möjliggör framställning av komplexa geometrier med ökad materialeffektivitet, lokaliserad produktion och större designfrihet. Trots dessa fördelar kvarstår utmaningar när det gäller att optimera AM-processer för att säkerställa resurseffektivitet – särskilt i att minska mAdditive Manufacturing (AM), commonly referred to as 3D printing, has known as a transformative approach in modern manufacturing. It enables the production of complex geometries with reduced material usage, localized fabrication, and improved design flexibility. Despite these advantages, challenges remain in optimizing AM processes to ensure resource efficiency, particularly in minimizing material

We study how small, fine-tuned generative large language models (LLMs) can moderate free-text search queries for surveillance video systems. Four open models, Llama 3.2 1B, Llama 3.2 3B, Qwen 2.5 0.5B, and 1.5 B, are trained on six subtasks: safety judgement, problem detection, target detection, span detection, safety explanation, and rephrase. The training combines a public toxicity set with abou

This thesis examines how gay male fans in mainland China understand their admiration for Taiwanese female Mandopop singers, and how they navigate the political controversies that surrounding Taiwanese female singers on Weibo. Drawing on qualitative data from eight semi-structured interviews, it applies a dual theoretical framework—Queer Cultural Decoding and Celebrity Politics under Digital Author

BACKGROUND: This systematic review aims to determine the loads of anti-A and anti-B in plasma-containing blood products that can safely be transfused to adults.MATERIALS AND METHODS: A comprehensive literature search was performed in PubMed, including studies dating back to 1940 until January 1 st, 2023. In total 1,869 articles were screened, describing 86 cases of hemolytic transfusion reactions