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View article: Evaluating Custom and Transfer Learning Convolutional Neural Networks for Pneumonia Classification Under Data Scarcity and Low-Compute Conditions for Under-Resourced Environments
Evaluating Custom and Transfer Learning Convolutional Neural Networks for Pneumonia Classification Under Data Scarcity and Low-Compute Conditions for Under-Resourced Environments Open
Pneumonia is an infectious disease that causes many deaths across the world. By accurately and efficiently recognizing pneumonia from images using machine learning, we can facilitate faster treatment. Yet, in under-resourced environments, …
View article: KM3NeT constraint on Lorentz-violating superluminal neutrino velocity
KM3NeT constraint on Lorentz-violating superluminal neutrino velocity Open
Lorentz invariance is a fundamental symmetry of spacetime and foundational to modern physics. One of its most important consequences is the constancy of the speed of light. This invariance, together with the geometry of spacetime, implies …
View article: The online data filter for the KM3NeT neutrino telescopes
The online data filter for the KM3NeT neutrino telescopes Open
The KM3NeT research infrastructure comprises two neutrino telescopes located in the deep waters of the Mediterranean Sea, namely ORCA and ARCA. KM3NeT/ORCA is designed for the measurement of neutrino properties and KM3NeT/ARCA for the dete…
View article: Prospects for dark matter observations in dwarf spheroidal galaxies with the Cherenkov Telescope Array Observatory
Prospects for dark matter observations in dwarf spheroidal galaxies with the Cherenkov Telescope Array Observatory Open
The dwarf spheroidal galaxies (dSphs) orbiting the Milky Way are widely regarded as systems supported by velocity dispersion against self-gravity, and as prime targets for the search for indirect dark matter (DM) signatures in the GeV-to-T…
View article: Search for an eV-scale sterile neutrino with the first six detection units of KM3NeT/ORCA
Search for an eV-scale sterile neutrino with the first six detection units of KM3NeT/ORCA Open
The existence of an eV-scale sterile neutrino has been proposed to explain several anomalous experimental results obtained over the course of the past 25 years. The first search for such a sterile neutrino conducted with data from KM3NeT/O…
View article: Search for neutrino emission from binary mergers with neutrino telescopes in the depths of the Mediterranean Sea
Search for neutrino emission from binary mergers with neutrino telescopes in the depths of the Mediterranean Sea Open
Astrophysical neutrinos may be produced during the coalescence of compact objects, in particular those involving neutron stars. Such mergers have been observed through gravitational wave detections by the LIGO-Virgo-KAGRA interferometers. …
View article: Constraining gamma-ray burst parameters with the first ultra-high energy neutrino event KM3-230213A
Constraining gamma-ray burst parameters with the first ultra-high energy neutrino event KM3-230213A Open
Context: The detection of the highest energy neutrino observed to date by KM3NeT, with an estimated energy of 220 PeV, opens up new possibilities for the study and identification of the astrophysical sources responsible for a diffuse flux …
View article: Evaluation of the upgraded 3-inch Hamamatsu photomultiplier for the KM3NeT Neutrino Telescope
Evaluation of the upgraded 3-inch Hamamatsu photomultiplier for the KM3NeT Neutrino Telescope Open
The 3-inch Hamamatsu R14374-02 photomultiplier tube is an improved version of the R12199-02 model and its successor in the construction of the KM3NeT neutrino telescope. A total of 1000 photomultipliers were analysed to assess their dark c…
View article: Reward history guides focal attention in whisker somatosensory cortex
Reward history guides focal attention in whisker somatosensory cortex Open
Prior reward is a potent cue for attentional capture, but the underlying neurobiology is largely unknown. In a whisker touch detection task, we show that mice flexibly shift attention between specific whiskers on a trial-by-trial timescale…
View article: H.E.S.S. programme searching for VHE gamma rays associated with FRBs
H.E.S.S. programme searching for VHE gamma rays associated with FRBs Open
Fast Radio Bursts (FRBs) are highly energetic, extremely short-lived bursts of radio flashes. Despite extensive research, the exact cause of these outbursts remains speculative. The high luminosity, short duration, and high dispersion meas…
View article: Development of rapid assessment tools for structural members using ultrasonic stress wave techniques
Development of rapid assessment tools for structural members using ultrasonic stress wave techniques Open
The requirements for inspecting a structure depend on a variety of factors, including: routine inspections, change in operating conditions, rehabilitation, accidents and after extreme events. Although visual inspections are generally adequ…
View article: Galactic transient sources with the Cherenkov Telescope Array Observatory
Galactic transient sources with the Cherenkov Telescope Array Observatory Open
A wide variety of Galactic sources show transient emission at soft and hard X-ray energies: low- and high-mass X-ray binaries containing compact objects, isolated neutron stars exhibiting extreme variability as magnetars as well as pulsar-…
View article: The H.E.S.S. extragalactic sky survey with the first decade of observations
The H.E.S.S. extragalactic sky survey with the first decade of observations Open
The results of the first extragalactic gamma-ray survey by the High Energy Stereoscopic System (H.E.S.S.) are presented. The survey comprises 2720 hours of very high-energy gamma-ray observations of the extragalactic sky, recorded with H.E…
View article: Search for quantum decoherence in neutrino oscillations with six detection units of KM3NeT/ORCA
Search for quantum decoherence in neutrino oscillations with six detection units of KM3NeT/ORCA Open
Neutrinos described as an open quantum system may interact with the environment which introduces stochastic perturbations to their quantum phase. This mechanism leads to a loss of coherence along the propagation of the neutrino - a phenome…
View article: First searches for dark matter with the KM3NeT neutrino telescopes
First searches for dark matter with the KM3NeT neutrino telescopes Open
Indirect dark matter detection methods are used to observe the products of dark matter annihilations or decays originating from astrophysical objects where large amounts of dark matter are thought to accumulate. With neutrino telescopes, a…
View article: KM3NeT Constraint on Lorentz-Violating Superluminal Neutrino Velocity
KM3NeT Constraint on Lorentz-Violating Superluminal Neutrino Velocity Open
Lorentz invariance is a fundamental symmetry of spacetime and foundational to modern physics. One of its most important consequences is the constancy of the speed of light. This invariance, together with the geometry of spacetime, implies …
View article: The ultra-high-energy event KM3-230213A within the global neutrino landscape
The ultra-high-energy event KM3-230213A within the global neutrino landscape Open
On February 13th, 2023, the KM3NeT/ARCA telescope detected a neutrino candidate with an estimated energy in the hundreds of PeVs. In this article, the observation of this ultra-high-energy neutrino is discussed in light of null observation…
View article: Study of tau neutrinos and non-unitary neutrino mixing with the first six detection units of KM3NeT/ORCA
Study of tau neutrinos and non-unitary neutrino mixing with the first six detection units of KM3NeT/ORCA Open
Oscillations of atmospheric muon and electron neutrinos produce tau neutrinos with energies in the GeV range, which can be observed by the ORCA detector of the KM3NeT neutrino telescope in the Mediterranean Sea. First measurements with ORC…
View article: Detection of very high-energy gamma-ray emission from Eta Carinae during its 2020 periastron passage
Detection of very high-energy gamma-ray emission from Eta Carinae during its 2020 periastron passage Open
The colliding-wind binary system η Carinae has been identified as a source of high-energy (HE, below ∼100 GeV) and very high-energy (VHE, above ∼100 GeV) gamma rays in the last decade, making it unique among these systems. With its eccentr…
View article: Search for non-standard neutrino interactions with the first six detection units of KM3NeT/ORCA
Search for non-standard neutrino interactions with the first six detection units of KM3NeT/ORCA Open
KM3NeT/ORCA is an underwater neutrino telescope under construction in the Mediterranean Sea. Its primary scientific goal is to measure the atmospheric neutrino oscillation parameters and to determine the neutrino mass ordering. ORCA can co…
View article: Object Detection with Deep Learning for Rare Event Search in the GADGET II TPC
Object Detection with Deep Learning for Rare Event Search in the GADGET II TPC Open
In the pursuit of identifying rare two-particle events within the GADGET II Time Projection Chamber (TPC), this paper presents a comprehensive approach for leveraging Convolutional Neural Networks (CNNs) and various data processing methods…
View article: Detection of very-high-energy gamma-ray emission from Eta Carinae during its 2020 periastron passage
Detection of very-high-energy gamma-ray emission from Eta Carinae during its 2020 periastron passage Open
The colliding-wind binary system $η$ Carinae has been identified as a source of high-energy (HE, below $\sim$100\,GeV) and very-high-energy (VHE, above $\sim$100\,GeV) gamma rays in the last decade, making it unique among these systems. Wi…
View article: High-Statistics Measurement of the Cosmic-Ray Electron Spectrum with H.E.S.S.
High-Statistics Measurement of the Cosmic-Ray Electron Spectrum with H.E.S.S. Open
Owing to their rapid cooling rate and hence loss-limited propagation distance, cosmic-ray electrons and positrons (CRe) at very high energies probe local cosmic-ray accelerators and provide constraints on exotic production mechanisms such …
View article: Search for quantum decoherence in neutrino oscillations with six detection units of KM3NeT/ORCA
Search for quantum decoherence in neutrino oscillations with six detection units of KM3NeT/ORCA Open
Neutrinos described as an open quantum system may interact with the environment which introduces stochastic perturbations to their quantum phase. This mechanism leads to a loss of coherence along the propagation of the neutrino $-$ a pheno…
View article: Prospects for γ-ray observations of the Perseus galaxy cluster with the Cherenkov Telescope Array
Prospects for γ-ray observations of the Perseus galaxy cluster with the Cherenkov Telescope Array Open
Galaxy clusters are expected to be both dark matter (DM) reservoirs and storage rooms for the cosmic-ray protons (CRp) that accumulate along the cluster's formation history. Accordingly, they are excellent targets to search for signals of …