C. M. S. Cohen
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View article: Erratum: “Time-dependent Acceleration and Escape of Charged Particles at Traveling Shocks in the Near-Sun Environment” (2025, ApJ, 979, 50)
Erratum: “Time-dependent Acceleration and Escape of Charged Particles at Traveling Shocks in the Near-Sun Environment” (2025, ApJ, 979, 50) Open
View article: Energy-dependent SEP Fe/O abundances during the May 2024 superstorm
Energy-dependent SEP Fe/O abundances during the May 2024 superstorm Open
During mid-May 2024, active region (AR) 13664 produced a series of M- and X-class flares along with several coronal mass ejections (CMEs) that resulted in exceptionally strong aurora at Earth. This study presents in-situ solar energetic pa…
View article: Species-dependent Variability in the Energy Spectra of Intense Solar Energetic Particle Events Observed by PSP/ISʘIS/EPI-Hi/LET
Species-dependent Variability in the Energy Spectra of Intense Solar Energetic Particle Events Observed by PSP/ISʘIS/EPI-Hi/LET Open
Solar energetic particle (SEP) events, comprising electrons, protons, and heavy ions with energies ranging from tens of keV nuc −1 to several GeV nuc −1 , offer critical insights into solar particle acceleration and transport mechanisms. T…
View article: Interstellar Mapping And Acceleration Probe: The NASA IMAP Mission
Interstellar Mapping And Acceleration Probe: The NASA IMAP Mission Open
View article: Distinct Solar Energetic Particle Shock Intensity–Diffusion Coefficient Relationships in the Inner Heliosphere
Distinct Solar Energetic Particle Shock Intensity–Diffusion Coefficient Relationships in the Inner Heliosphere Open
It has been inferred from theory that the spatial diffusion coefficient ( κ ) upstream of shocks is anticorrelated with the intensity of solar energetic particles (SEPs) at the shock ( j shock ) motivated by quasi-linear theory (QLT). This…
View article: The Exospace Weather Frontier
The Exospace Weather Frontier Open
Space weather is among the most powerful and least understood forces shaping planetary atmospheres. We observe its effects directly on Solar System bodies through atmospheric escape, chemical disruption, cometary tails, and auroral display…
View article: Head-direction cells as a neural compass in bats navigating outdoors on a remote oceanic island
Head-direction cells as a neural compass in bats navigating outdoors on a remote oceanic island Open
Animals and humans rely on their navigation skills to survive. However, spatial neurons in the brain’s “navigation circuit” had not previously been studied under real-world conditions. We conducted an electrophysiological study of spatial …
View article: Inside Back Cover: Toward Bimetallic Nanowire Arrays with Controlled Compositions Using Block Copolymer Films: the Interplay Between Metal Precursors (Angew. Chem. Int. Ed. 43/2025)
Inside Back Cover: Toward Bimetallic Nanowire Arrays with Controlled Compositions Using Block Copolymer Films: the Interplay Between Metal Precursors (Angew. Chem. Int. Ed. 43/2025) Open
View article: Time-dependent Acceleration and Escape of Charged Particles at Traveling Shocks in the near-Sun environment: the case of the Sept 5th 2022 Parker Solar Probe event
Time-dependent Acceleration and Escape of Charged Particles at Traveling Shocks in the near-Sun environment: the case of the Sept 5th 2022 Parker Solar Probe event Open
View article: The 23 July 2024 Fe-rich SEP event observed by Parker Solar Probe/Integrated Science Investigation of the Sun
The 23 July 2024 Fe-rich SEP event observed by Parker Solar Probe/Integrated Science Investigation of the Sun Open
View article: Observations and simulations of decay phases of Solar Energetic Particle events
Observations and simulations of decay phases of Solar Energetic Particle events Open
View article: A Machine Learning Approach to Surveying Solar Energetic Particle Time Profiles
A Machine Learning Approach to Surveying Solar Energetic Particle Time Profiles Open
View article: ARTIfiCIAL INTELLIGENCE IMPROVES THE PREOPERATIVE PREDICTION OF CEREBELLAR MUTISM SYNDROME: A MULTINATIONAL, MULTI-READER STUDY AND PRACTICE RECOMMENDATIONS FROM THE POSTERIOR FOSSA SOCIETY
ARTIfiCIAL INTELLIGENCE IMPROVES THE PREOPERATIVE PREDICTION OF CEREBELLAR MUTISM SYNDROME: A MULTINATIONAL, MULTI-READER STUDY AND PRACTICE RECOMMENDATIONS FROM THE POSTERIOR FOSSA SOCIETY Open
AIMS Cerebellar mutism syndrome (pCMS) is a severe complication experienced by up to 40% of children undergoing resection of a primary posterior fossa tumour. Accurate prediction of pCMS risk could improve perioperative patient/parental co…
View article: Toward Bimetallic Nanowire Arrays with Controlled Compositions Using Block Copolymer Films: The Interplay Between Metal Precursors
Toward Bimetallic Nanowire Arrays with Controlled Compositions Using Block Copolymer Films: The Interplay Between Metal Precursors Open
Metallic nanowire (NW) arrays are promising components for nanotechnology owing to their elongated, continuous, and directional structure. Bimetallic NWs present synergistic effects that are advantageous for applications in catalysis and m…
View article: Toward Bimetallic Nanowire Arrays with Controlled Compositions Using Block Copolymer Films: The Interplay Between Metal Precursors
Toward Bimetallic Nanowire Arrays with Controlled Compositions Using Block Copolymer Films: The Interplay Between Metal Precursors Open
Metallic nanowire (NW) arrays are promising components for nanotechnology owing to their elongated, continuous, and directional structure. Bimetallic NWs present synergistic effects that are advantageous for applications in catalysis and m…
View article: Multi-spacecraft observations of energy-dependent SEP Fe/O abundances during the May 2024 superstorm
Multi-spacecraft observations of energy-dependent SEP Fe/O abundances during the May 2024 superstorm Open
View article: Comparing observations of closely located JUICE and STEREO-A spacecraft during the widespread 13 May 2024 solar energetic particle event
Comparing observations of closely located JUICE and STEREO-A spacecraft during the widespread 13 May 2024 solar energetic particle event Open
Context. Following its launch in April 2023, JUICE is now in its cruise phase to Jupiter, where it is scheduled to arrive in July 2031. JUICE carries a radiation monitor, namely the RADiation hard Electron Monitor (RADEM) to measure proton…
View article: Temporal power of a cycling sprinter: experiments and effective time theory
Temporal power of a cycling sprinter: experiments and effective time theory Open
Using data recorded on ergocycle and in situ at the National Velodrome of Saint-Quentin-en-Yvelines, either during training sessions or during the 2022 World Championships, we first carry out an experimental study of the decay over time of…
View article: Large-amplitude Whistler Precursors and >MeV Particles Observed at a Weak Interplanetary Shock by Parker Solar Probe
Large-amplitude Whistler Precursors and >MeV Particles Observed at a Weak Interplanetary Shock by Parker Solar Probe Open
We report observations of an interplanetary (IP) shock observed by Parker Solar Probe (PSP) on 2024 September 29 at ∼07:50:29 UTC. PSP was only ∼17.07 R s from the Sun, making this one of the closest observed IP shocks to date. The IP shoc…
View article: Evidence of Time-Dependent Diffusive Shock Acceleration in the 2022 September 5 Solar Energetic Particle Event
Evidence of Time-Dependent Diffusive Shock Acceleration in the 2022 September 5 Solar Energetic Particle Event Open
On 2022 September 5, a large solar energetic particle (SEP) event was detected by Parker Solar Probe (PSP) and Solar Orbiter (SolO), at heliocentric distances of 0.07 and 0.71 au, respectively. PSP observed an unusual velocity-dispersion s…
View article: Magnetic Reconnection–driven Energization of Protons up to ∼400 keV at the Near-Sun Heliospheric Current Sheet
Magnetic Reconnection–driven Energization of Protons up to ∼400 keV at the Near-Sun Heliospheric Current Sheet Open
We report observations of direct evidence of energetic protons being accelerated above ∼400 keV within the reconnection exhaust of a heliospheric current sheet (HCS) crossing by NASA’s Parker Solar Probe (PSP) at a distance of ∼16.25 solar…
View article: Physics-based Simulation of the 2013 April 11 Solar Energetic Particle Event
Physics-based Simulation of the 2013 April 11 Solar Energetic Particle Event Open
Solar energetic particles (SEPs) can pose hazardous radiation risks to both humans and spacecraft electronics in space. Numerical modeling based on first principles offers valuable insights into the underlying physics of SEPs and provides …
View article: Diverse Dust Populations in the Near-Sun Environment Characterized by PSP/ISʘIS
Diverse Dust Populations in the Near-Sun Environment Characterized by PSP/ISʘIS Open
The Integrated Science Investigation of the Sun energetic particle instrument suite on the Parker Solar Probe is dedicated to measuring energetic ions and electrons in the near-Sun environment. It includes a half-sky-viewing time-of-flight…
View article: Development of a New Generation Multi-Element Monolithic HPGe sensor for XAFS applications
Development of a New Generation Multi-Element Monolithic HPGe sensor for XAFS applications Open
Recent upgrades in synchrotron radiation facilities, which now produce highly brilliant and coherent beams, result in a broader array of experiments challenging the available detectors. In X-ray Absorption Fine Structure (XAFS) experiments…
View article: Progress in the Development of Multi-Element Monolithic Germanium Detectors in LEAPS-INNOV Project: Insights from Detector Performance Simulation
Progress in the Development of Multi-Element Monolithic Germanium Detectors in LEAPS-INNOV Project: Insights from Detector Performance Simulation Open
This study presents a detailed simulation-based analysis of the detection limits of multi-element monolithic Germanium (Ge) detectors to cadmium traces in environmental soil samples. Using the capabilities of the Geant4 Monte Carlo toolkit…
View article: Next Generation Multi-element monolithic Germanium detectors for Spectroscopy: First integration at ESRF facility
Next Generation Multi-element monolithic Germanium detectors for Spectroscopy: First integration at ESRF facility Open
The XAFS-DET work package of the European LEAPS-INNOV project is developing a high-purity Germanium detectors for synchrotron applications requiring spectroscopic-grade response. The detectors integrate three key features: (1) newly design…
View article: Two Phases of Particle Acceleration of a Solar Flare Associated with In Situ Energetic Particles
Two Phases of Particle Acceleration of a Solar Flare Associated with In Situ Energetic Particles Open
How impulsive solar energetic particle (SEP) events are produced by magnetic-reconnection-driven processes during solar flares remains an outstanding question. Here we report a short-duration SEP event associated with an X-class eruptive f…
View article: Physique au vélodrome
Physique au vélodrome Open
L'article analyse la dynamique des pistards sur l'épreuve du kilomètre en combinant physique, biomécanique et physiologie. Cette course individuelle, à départ arrêté, demande aux coureurs de parcourir 1 km le plus rapidement possible. Les …
View article: Magnetic Reconnection in Solar Flares and the Near-Sun Solar Wind
Magnetic Reconnection in Solar Flares and the Near-Sun Solar Wind Open
An overview is presented of our current understanding and open questions related to magnetic reconnection in solar flares and the near-sun (within around 20 $R_{s}$ ) solar wind. The solar-flare-related topics include the mechanisms th…
View article: Radial Dependence of Ion Fluences in the 2023 July 17 Solar Energetic Particle Event from Parker Solar Probe to STEREO and ACE
Radial Dependence of Ion Fluences in the 2023 July 17 Solar Energetic Particle Event from Parker Solar Probe to STEREO and ACE Open
In the latter moments of 2023 July 17, the solar active region (AR) 13363, near the southwestern face of the Sun, was undergoing considerable evolution, which resulted in a significant solar energetic particle (SEP) event measured by Parke…