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Din sökning på "2025" gav 23882 sökträffar
Forecasting Bitcoin Price Movements Using Neural Networks: A Time Series Approach
The extreme volatility and pronounced non-stationarity of cryptocurrency prices challenge traditional time-series models and motivate the use of deep learning. This thesis addresses three focused research questions: (i) Do gated recurrent neural networks (GRNNs) produce more accurate one-day-ahead Bitcoin return predictions than feedforward neural networks and linear benchmarks? (ii) Can a GRNN ba
Att stå mellan två världar - En kvalitativ studie om identitetsskapandet hos andra generationens invandrare
This study seeks to explore the identity and cultural belonging of second-generation immigrants. The purpose is to examine the view that second-generation immigrants have on these two aspects and the impact it has on creating their identity. The study is conducted through qualitative semi-structured interviews held with six individuals who qualify as second-generation immigrants. The individuals c
Glycoprotein 340 and sialic acid in minor-gland and whole saliva of children, adolescents, and adults.
Glycoprotein 340 (gp-340) is a bacterial-binding glycoprotein found in major-gland and minor-gland saliva. Sialic acid, a common terminal structure of salivary glycoproteins, interacts with microorganisms and host ligands, as well as with free radicals. This study investigated the contents of gp-340 and sialic acid in minor-gland saliva and whole saliva of children (3 yr of age), adolescents (14 y
Using an abstract geometry in virtual reality to explore choice behaviour: visual flicker preferences in honeybees
Closed-loop paradigms provide an effective approach to studying visual choice behaviour and attention in small animals. Different flying and walking paradigms have been developed to investigate behavioural and neuronal responses to competing stimuli in insects such as bees and flies. However, the variety of stimulus choices that can be presented over one experiment is often limited. Current choice
Incidence of airflow limitation in subjects 65-100 years of age.
The true incidence of chronic obstructive pulmonary disease is largely unknown, because the few longitudinal studies performed have used diagnostic criteria no longer recommended by either the European Respiratory Society or the American Thoracic Society (ATS).We studied the incidence and significance of airflow limitation in a population-based geriatric sample using both an age-dependent predicte
Non-linear myofilament elasticity in frog intact muscle fibres.
Newsletter June -25
The associations of the psychosocial safety climate with human service workers’ job demands, resources, and work-and health-related outcomes : A scoping review
Objectives: Human service workers are at a greater risk for negative work and health-related outcomes due to the highly demanding nature of their work which involves unique stressors such as emotion work and routine interactions with clients. This scoping review synthesizes the current state of literature reporting on the associations of psychosocial safety climate (PSC) with human service workers
The Virtual Reality Tour : Immersive Preoperative Information for Elderly Patients
Background/Objectives: Older patients are more susceptible to the process of understanding and retrieving information. To provide adequate preoperative information, reduce their vulnerability and anxiety, and thereby facilitate pre-, intra-, and postoperative care, the adoption of new information technologies is essential. This study aimed to explore elderly patients' experiences and perceptions o
Bi-allelic variants in three genes encoding distinct subunits of the vesicular AP-5 complex cause hereditary macular dystrophy
Inherited retinal diseases (IRDs) are a genetically heterogeneous group of Mendelian disorders that often lead to progressive vision loss and involve approximately 300 distinct genes. Although variants in these loci account for the majority of molecular diagnoses, other genes associated with IRD await molecular identification. In this study, we uncover bi-allelic assortments of 23 different (22 lo
Firefighter exposures during structural fires : An overview of real-world data
This paper examines firefighter exposure to emissions during actual firefighting in building scenarios. The focus is on actual exposure, not small-scale lab tests, to identify research gaps in light of the International Agency for Research on Cancer (IARC) classification of firefighting as an occupation with a heightened risk for certain types of cancer. The work is based on a systematic literatur
Measurement of off-shell Higgs boson production in the H∗ → ZZ → 4ℓ decay channel using a neural simulation-based inference technique in 13 TeV pp collisions with the ATLAS detector
A measurement of off-shell Higgs boson production in the H∗ → ZZ → 4ℓ decay channel is presented. The measurement uses 140 fb−1 of proton–proton collisions at √s = 13 TeV collected by the ATLAS detector at the Large Hadron Collider and supersedes the previous result in this decay channel using the same dataset. The data analysis is performed using a neural simulation-based inference method, which
Search for Higgs boson decays into a Z boson and a light hadronically decaying resonance in pp collisions at s=13 TeV with the ATLAS detector
A search for decays of the Higgs boson into a Z boson and a light resonance, with a mass of 0.5–3.5 GeV, is performed using the full 140 fb−1 dataset of 13 TeV proton–proton collisions recorded by the ATLAS detector during LHC Run 2. Leptonic decays of the Z boson and hadronic decays of the light resonance are considered. The resonance can be interpreted as a J/ψ or ηc meson, an axion-like particl
Use of literary texts in science teaching : A scoping review
Previous research in various educational areas has shown that literary texts have much to contribute through offering perspectives, contexts, and ways of presenting content. The present study has a particular focus on science education. The purpose of science education is under debate, and research as well as large-scale frameworks such as PISA increasingly highlight student agency and action comp
Search for tt¯H/A→tt¯tt¯ production in proton–proton collisions at s=13 TeV with the ATLAS detector
A search is presented for a heavy scalar (H) or pseudo-scalar (A) predicted by the two-Higgs-doublet models, where the H/A is produced in association with a top-quark pair (tt¯H/A), and with the H/A decaying into a tt¯ pair. The full LHC Run 2 proton–proton collision data collected by the ATLAS experiment is used, corresponding to an integrated luminosity of 139fb-1. Events are selected requiring
Common femtoscopic hadron-emission source in pp collisions at the LHC
The femtoscopic study of pairs of identical pions is particularly suited to investigate the effective source function of particle emission, due to the resulting Bose–Einstein correlation signal. In small collision systems at the LHC, pp in particular, the majority of the pions are produced in resonance decays, which significantly affect the profile and size of the source. In this work, we explicit
Differential cross-section measurements of Higgs boson production in the H → τ+τ− decay channel in pp collisions at s = 13 TeV with the ATLAS detector
Differential measurements of Higgs boson production in the τ-lepton-pair decay channel are presented in the gluon fusion, vector-boson fusion (VBF), VH and tt¯H associated production modes, with particular focus on the VBF production mode. The data used to perform the measurements correspond to 140 fb−1 of proton-proton collisions collected by the ATLAS experiment at the LHC. Two methods are used
Northvolt: The Broken Promise?
Within months, everything changed in the autumn of 2024. Northvolt, once the defining symbol of Sweden’s green transition, suddenly found itself at the centre of one of the country’s most serious economic crises in decades. What had been a modern, sustainable fairytale of rapid growth and global ambition turned into a question of survival, ownership, and maintaining the Northvolt name. It is now
Improved characterization of the TOI-2141 system: A dense sub-Neptune with non-transiting inner and outer companions
Aims. We aim to refine the fundamental parameters of the TOI-2141 planetary system, which includes a transiting sub-Neptune orbiting a Sun-like star on a relatively long orbit of 18.26 days, by combining new photometric and spectroscopic observations. Methods. We analyzed new space-based photometry from TESS and CHEOPS, as well as 61 radial velocity measurements from HARPS-N. We performed individu
