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Thousands of planetesimals : Simulating the streaming instability in very large computational domains

The streaming instability is a mechanism whereby pebble-sized particles in protoplanetary discs spontaneously come together in dense filaments, which collapse gravitationally to form planetesimals upon reaching the Roche density. The extent of the filaments along the orbital direction is nevertheless poorly characterised, due to a focus in the literature on small simulation domains where the behav

Personal social network strengthens adherence to lifestyle changes in individuals with subjective cognitive decline

INTRODUCTION: Providing medical advice regarding lifestyle changes is currently the most effective intervention for delaying dementia onset among individuals with subjective cognitive decline (SCD). Adherence to such advice can be influenced by individual's social environment. We measured that impact within a Latinamerican population. METHODS: We recruited 183 SCD individuals from a Memory Clinic,

Survey among experts on the future role of tau-PET in clinical practice and trials

BACKGROUND: Recent advancements in Alzheimer's disease (AD) biomarker research and clinical trials prompt reflection on the value and consequently appropriate use of tau positron emission tomography (tau-PET) in the future. METHODS: We conducted an online survey among dementia and PET experts worldwide to investigate the anticipated future role of tau-PET in clinical practice and trials. RESULTS:

Expansion of MHC-IIB Has Constrained the Evolution of MHC-IIA in Passerines

The major histocompatibility complex (MHC) is central in adaptive immunity, with the highly polymorphic MHC genes encoding antigen-presenting molecules. Two MHC class II (MHC-II) loci, DA1 and DA2, predate the radiation of extant birds and persist throughout much of the avian phylogeny. Within each locus, the MHC-II molecules are encoded by A-genes (DAA) and B-genes (DAB), which are arranged in A–

Can Sovereign ESG Help Guide Nation-States’ Transformative Change?

This study examines the role of the Sovereign ESG framework in assessing national progress toward Transformative Change (TC) via environmental, social, and governance metrics. Using data from the World Bank Sovereign ESG Data Portal, we conduct an empirical explorative quantitative study and analyze ESG development across country income groups to identify sustainability challenges and opportunitie

Population-based Data for a Digital Cognitive test: Cognitive Healthy Participants Experience.

As the population of the world increases, there will be a larger number of people with major neurocognitive disorder and anemerging need for prompt diagnosis and treatment. A digital cognitive test could lead to that more people can be tested withoutburdening healthcare. To explore elderly’s experiences of using a digital cognitive test a cognitive healthy population of 70-year-oldswere recruited

Estimating the potential health effects of cleaner air in the initial stages of the COVID-19 pandemic : a study in Malmö, Sweden

Background: During the initial phase of the COVID-19 pandemic, reductions in air pollution were globally observed owing to decreased human activities, underscoring the potential for cleaner air through shifts in human behaviour. Objectives: The objective of the present study was to hypothetically estimate the resulting population health impacts in Malmö, Sweden, if these improvements in air qualit

Core Loss Tracking of Stator Core Testing via Inverse Jiles-Atherton Hysteresis Model

This paper presents a novel optimization strategy for fitting the Jiles-Atherton (JA) hysteresis model to experimental stator yoke core loss measurements and locked-rotor IPMSM calculations. The first study aims to identify a single set of JA model parameters that track sample core losses at different magnetization levels at a given frequency: the analytical model is compared with finite element m

FragMAX Facility for Crystallographic Fragment and Ligand Screening at MAX IV

The FragMAX facility at MAX IV Laboratory is a state-of-the-art platform for crystallographic fragment screening, designed to support structure-based drug and chemical tool compound discovery. This facility offers a comprehensive workflow, from high-throughput crystal preparation and automated diffraction data collection at the BioMAX beamline to advanced data processing and analysis using custom

Executive functions in older adults with generalised anxiety disorder and healthy controls : Associations with heart rate variability, brain-derived neurotrophic factor, and physical fitness

Executive functions (EF) decline with age and this decline in older adults with generalised anxiety disorder (GAD) may be influenced by heart rate variability (HRV), brain-derived neurotrophic factor (BDNF), and physical fitness. Understanding these relationships is important for tailored treatments in this population. In this study, 51 adults with GAD (M age = 66.46, SD = 4.08) and 51 healthy con

Health risk assessment of potentially toxic elements intake via food crops consumption: Monte Carlo simulation-based probabilistic and heavy metal pollution index

The aim of this study is to assess the content of heavy metals and their potential health risk in consumed food crops. To this end, the samples from vegetables, rice, potato, onion, and black tea were derived from high sales and commonly consumed types. The noncarcinogenic health risk of heavy metals to the adults, teens, and children was estimated by target hazard quotients (THQs) and hazard inde

III-V heterostructure tunnel field-effect transistor operation at different temperature regimes

Tunnel field-effect transistors (TFETs) are a potential alternative to MOSFETs for low-temperature electronics. We provide an in-depth experimental characterization of TFETs analyzing the fundamental physical behavior at different temperature regimes. TFET characteristics from 13 to 300 K both in forward and reverse bias are discussed by employing a variation in InAs/InGaAsSb/GaSb heterojunction v

Mind, Language, Work : Thinking Beyond AI Ideology

If AI is to emulate the language, mind, and work of humans, what remains of being human? One scenario is that humans are at risk of becoming robots of AI-powered systems, serving the interests of a few global corporations. We have already reached this stage of transformation. Given this predicament, the issues concerning the capacity of AI beyond the human should be addressed through a critique of

Serine phosphorylation mimics of Aβ form distinct, non-cross-seeding fibril morphs

The self-assembly of amyloid-β peptide (Aβ) into fibrils and oligomers is linked to Alzheimer's disease (AD). Fibrillar aggregates in AD patient's brains contain several post-translational modifications, including phosphorylation at positions 8 and 26. These play a key role in modifying the aggregation propensity of Aβ, yet how they affect the mechanism of aggregation is only poorly understood. He