University of Oslo

Evolving beyond collapse: an adaptive particle batch smoother for cryospheric data assimilation

We present a new adaptive particle-based data assimilation scheme for cryospheric applications that leverages promising developments in importance sampling. The proposed approach seeks to combine some of the advantages of two widely used classes of schemes: particle methods and i...

Black Ships: What Kind of Martial Art Is Sociology?

Pierre Bourdieu described sociology as a martial art but never specified what kind. The kind matters. The Japanese martial tradition offers a typology he did not draw: -jutsu, oriented toward defeating a real opponent; -do as competition, oriented toward internal scoring within a...

Pica, avoidant restrictive food intake disorder and rumination disorder in children and adolescents with autism spectrum disorder: A systematic review

Abstract Background Children with autism spectrum disorder (ASD) have an increased risk of co-occurring eating disorders such as pica, avoidant restrictive food intake disorder (ARFID) and rumination disorder (RD). The aim of the current systematic review was to synthesize and ap...

Radiation doses during extreme solar energetic particle events

Ions and electrons accelerated to high energies during flares and coronal mass ejections at the Sun may escape the solar atmosphere and, guided by the interplanetary magnetic fields, propagate through space to near-Earth locations. These Solar Energetic Particles (SEPs) can be de...

An updated estimate of the proportion of neurocysticercosis among people with epileptic seizures: a systematic review and Bayesian meta-analysis

BACKGROUND: Neurocysticercosis (NCC) is an infection of the central nervous system caused by the larval stage of Taenia solium. This systematic review (PROSPERO identifier: CRD42021266596) aimed to estimate the pooled proportion of NCC among people with epileptic seizures (PWES)...

Application of [ 18 F]NaF and [ 18 F]FDG PET/CT to Assess Molecular Calcification and Glucose Metabolism in Thyroid Cartilage

Objective Thyroid cartilage calcification and glucose metabolism may vary with age and gender. This study investigated the role of [ 18 F]-sodium fluoride ([ 18 F]NaF) and 2-[ 18 F]fluoro-2-deoxy-D-glucose ([ 18 F]FDG) PET/CT in evaluating of physiological molecular calcification...

Tension in the solar energetic proton paradigm for historical cosmogenic nuclide events

'Miyake events' are exceptional increases in atmospheric 14C recorded in tree rings that, if confirmed, are accompanied by simultaneous 10Be and 36Cl enhancements in ice cores. During the last 15 000 years, six such events have been confirmed. They are generally thought to origin...

Literary negotiations of grief experiences: a philosophical-narratological analysis of Denise Riley’s Time lived, without its flow

Philosophical grief research frequently draws on literary autobiographical grief narratives to motivate or substantiate assumptions about the phenomenology of grief. Yet, this research has not provided detailed analyses of the aesthetic-artefactual and narrative characteristics o...

Oveporexton for Narcolepsy Type 1 — Results from Two Phase 3 Trials

BACKGROUND: Narcolepsy type 1 is characterized by excessive daytime sleepiness, cataplexy, disrupted sleep, sleep paralysis, and hypnagogic or hypnopompic hallucinations. Oveporexton (TAK-861), an oral orexin receptor 2-selective agonist, reduced symptoms of narcolepsy type 1 in...

First-Principles Investigation into Structural and Optoelectronic Properties of Mixed Halide Perovskites CsPbBr3– y X y (X = I, Cl, F; y = 0, 1, 2, 3) Using GGA, mBJ, mBJ + SOC, and HSE Functionals

Abstract This study presents a comprehensive density functional theory investigation into the structural, electronic, and optical properties of inorganic halide perovskites with the general formula CsPbBr3–yXy (where X = I, Cl, F; and y = 0, 1, 2, 3). Using the Vienna Ab initio S...

Expanded evaluation of a robust on-line sample cleanup-LC-MS platform suited for new approach methodologies (NAM)

Abstract Sample preparation in bioanalysis can require significant numbers of (manual) steps and consumables. Such procedures can be bottlenecks regarding cost, throughput, and greenness. This is also the case for analysis of new approach methodologies (NAMs) such as organoids an...

Silica–water model using the Vashishta force field

Nanoscale interactions between silica (SiO2) and water (H2O) significantly influence the behavior of materials such as rocks, glasses, ceramics, and cements in geological and engineered environments. Accurate simulation of these interfacial phenomena requires force fields capable...

Seasonal and inter-annual evolution of the deformation of two Arctic landslides

Landslides in glacial and periglacial environments are increasingly affected by climate change, with sudden failures reported in high mountain regions and the Arctic. The complex mechanisms behind these events are often poorly understood due to a lack of dense in situ data. We in...

Childhood inductive reasoning, cardiovascular and cardiometabolic morbidity and dementia risk – a population representative cohort study across six decades

Abstract Background Higher cognitive ability in late adolescence and young adulthood associate with reduced risk of dementia, but such assessments are influenced by educational selection. Whether specific cognitive abilities earlier in childhood associate with later dementia risk...

Preoperative Anxiety and/or Depression as a Predictor of Patient‑Reported Outcomes After Total Ankle Arthroplasty

Background: Psychological distress has been associated with inferior outcomes after major joint arthroplasty, but its impact on outcomes after total ankle arthroplasty (TAA) remains unclear. The main aim of this study was to investigate whether patients reporting anxiety or depre...

Atrial cardiomyopathy and MRI-detected covert brain infarction in an elderly population-based cohort: the Akershus Cardiac Examination 1950 study

Abstract Introduction Atrial fibrillation is associated with both clinical stroke and covert brain infarction (CBI). Atrial cardiomyopathy has been proposed in absence of atrial fibrillation as an independent stroke risk factor, but supporting evidence is limited. This study aime...

Kinematic relationship between solar extreme ultraviolet waves and type II metric radio bursts

Solar extreme-ultraviolet (EUV) waves are large-scale disturbances that manifest as bright wavefronts, often during coronal mass ejections (CMEs). According to the magnetic field line stretching model, this phenomenon comprises two components: a fast-mode CME piston-driven shock...

Dynamic Evolution and Stability of Ketenes in MAPO-18 (M = Si or Mg): Molecular Insights into the Reaction Mechanism for CO2-to-Hydrocarbons

AEI topology molecular sieves (MAPO-18) have shown promising properties as components of OX-ZEO type tandem catalysts, where the Brønsted acid sites (BAS) introduced by different framework substitutions lead to distinct catalytic mechanisms on the CO2-to-hydrocarbons conversion....

Associations Between Types of Imitation and Receptive and Expressive Language Skills in Preschoolers With Autism

Purpose: Imitation and language are associated in autistic children. However, imitation involves various types. This cross-sectional study examined the associations between different imitation abilities and receptive and expressive language skills in autistic preschoolers while c...

Interlocking plate compared with conventional pin fixation for undisplaced femoral neck fractures: a randomized controlled trial with radiostereometric analysis

Aims: In undisplaced femoral neck fractures, fixation failure remains a concern. In vitro studies suggest that interlocking plates increase torsional stability. However, whether this leads to clinically relevant improvement in fixation stability in vivo remains unclear. According...