Developing an efficient code for large, multiscale astrophysical simulations is crucial in preparing for the upcoming era of exascale computing. RAMSES is an astrophysical simulation code that employs parallel processing based on the message-passing interface (MPI). However, it has limitations in computational and memory efficiency when using a large number of CPU cores. The problem stems from ine

In modern security systems, the widespread deployment of battery-powered IoT devices creates a critical need for accurate battery replacement strategies. Premature replacement leads to unnecessary waste, while delayed replacement risks system failure in the case of an incident. This thesis presents the workflow building on limited knowledge of the data in an unsupervised learning setting to a work

Purpose: Myocardial infarctions (MIs) can occur in underlying obstructive coronary artery disease (MI-CAD) or in non-obstructive coronary arteries (MINOCA). The primary objectives of the study were to investigate the prevalence of MI-CAD and MINOCA in people with CAL, and to explore if CAL is an independent risk factor for MI-CAD and MINOCA. Secondary objectives were to explore these research ques

Background: The growing challenges of population aging create a pressing need for specialized geriatric medicine services to effectively address the complex health needs of older adults and influence supportive healthcare policies. Older patients may present clinical complexity with multimorbidity, disability, and/or frailty, necessitating a shift from the traditional organ-oriented clinical appro

Summary: Screening initiatives for osteoporosis must facilitate treatment of those at elevated fracture risk. In a randomized controlled trial of 24,229 women, those in the screening group with FRAX ≥ 15% were invited for DXA with AOM treatment offered as per national guidelines. Treatment initiation in the following year was 9.5 times higher compared with controls. Purpose: To determine if screen

This thesis presents a topology optimization framework for anisotropic elastoplastic structures based on the deformation theory of plasticity. Traditional methods often assume linear elasticity and isotropic material behavior, which limits their ability to model real-world materials that exhibit anisotropy and undergo plastic deformation. Although incremental elastoplastic models can accurately ca

Denna rapport utgör Klimatpolitiska rådets årliga utvärdering av regeringens samlade politik i förhållande till de klimatmål som beslutats av riksdag och regering.Del I är en utvärdering av hur regeringens politik har utvecklats under 2024 och har alltså en tidsmässig avgränsning. För att sätta den utvärderingen i ett sammanhang inleds texten men en kortfattad genomgång av nu gällande klimatmål oc

Evolutionary changes in geographic distribution and larval host plants may promote the rapid diversification of montane insects, but this scenario has been rarely investigated. We studied the rapid radiation of the butterfly genus Colias, which has diversified in mountain ecosystems in Eurasia, Africa, and the Americas. Based on a data set of 150 nuclear protein-coding genetic loci and mitochondri

Background and purpose — In complex primary total knee arthroplasty (TKA), constrained condylar knee (CCK) or rotating hinge knee (RHK) designs may be required to provide stability or address bony deficiencies. We analyzed trends in incidence of these designs in primary TKA and evaluated the mid-to long-term survivorship of CCK and RHK in 4 Nordic countries. Methods — From 2000 to 2017, 5,134 CCK

Denna rapport utgör ett underlag till Klimatpolitiska rådets rapport 2025 som innehåller en fördjupande analys av jordbrukets potentiella bidrag till klimatmålen. Klimatpolitiska rådets rapport presenterar bland annat en analys av olika scenarier av möjliga utvecklingsvägar för svenskt jordbruk.Fokus i analysen är vad de olika scenarierna kan innebära för möjligheten till minskade växthusgasutsläp

Context. The peculiar Galactic globular cluster ω Centauri (NGC 5139) has drawn attention for its unique features, such as an unusually high stellar mass compared to other Galactic globular clusters and a broad distribution of chemical elements. These features have led to the hypothesis that ω Centauri might be the nuclear remnant of an ancient dwarf galaxy accreted by the Milky Way, potentially b

High-speed vertical III–V nanowire transistors utilize their channel material for high frequency and low noise performance. A device layout revision to optimize gate resistance, in a trade-off to gate-source capacitance, is presented. A two-step redesign of the established device layout is proposed. First step is demonstrated with fabricated structures. The second step predicts the design transiti

Purpose: People with acquired neurogenic Communication Disorders (PwCD) experience reduced satisfaction in healthcare environments, possibly relating to communication difficulties. Communication Partner Training might improve communication success. The purpose of the scoping review was to map the literature about educational experiences in teaching communication strategies to healthcare students (

Functional gradient sintering of WC-TiC-Co cemented carbides was studied to reveal the effect of powder metallurgical processing conditions on compositional and microstructural, as well as hardness and toughness, gradients. The samples were created by local addition of TiC prior to sintering. Two different starting WC powders, one sub-micron and one medium-coarse, were used. Sintering at two diffe

Measurements of azimuthal angular correlations of inclusive and identified particles from EPOS4 and PYTHIA8 event generators are used to study the unexpected collective behavior observed in small collision systems. In particular, anisotropic flow coefficients measured using two- and four-particle correlations and balance functions are reported in pp collisions at √s = 13.6 TeV. The second-order Fo

The European spruce bark beetle (Ips typographus) is an insect species that causes significant damage to Norway spruce (Picea abies) forests across Europe. Infestation by bark beetles can profoundly impact forest ecosystems, affecting their structure and composition and affecting the carbon cycle and biodiversity, including a decrease in net primary productivity (NPP), a key indicator of forest he

Purpose: To investigate the incidence and risk factors of retinal detachment (RD) and bacterial endophthalmitis in a cohort of children who underwent cataract surgery before the age of eight. Methods: Data was retrieved from the Swedish national paediatric cataract register. All eyes with congenital or infantile cataract that underwent surgery between January 1, 2007, and December 31, 2023 with at