Results 191 to 200 of about 311,610 (264)

Cellular mechanisms of radiation‐induced myocyte dysfunction: effects on calcium handling, ion channel regulation and mitochondrial energetics

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Dose‐dependent effects of radiation on cardiac electrophysiology and arrhythmia susceptibility. At low radiation doses (left), increased reactive oxygen species (ROS) initiate an ROS–Ca2+ positive feedback loop involving calcium/calmodulin‐dependent protein kinase II (CaMKII) activation, enhanced L‐type Ca2+ current (ICaL ...
Hannah M. Zukowski, Colleen E. Clancy
wiley   +1 more source

Advancements and Challenges in Antenna Design and Rectifying Circuits for Radio Frequency Energy Harvesting. [PDF]

open access: yesSensors (Basel)
Odiamenhi M   +5 more
europepmc   +1 more source

Performance of a Mixed Least‐Squares Finite Element Formulation With Application in Poroelasticity

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT A mixed least‐squares finite element method (LSFEM), previously proposed for the theory of porous media (TPM), is further investigated in this work. Finite deformation of a fully saturated, incompressible solid–fluid binary system is studied using the LSFEM.
Manu Hegde   +3 more
wiley   +1 more source

Inverse‐Designed Nanophotonic Structures for On‐Chip Excitation and Broadband Emission Extraction in Diamond Quantum Spin Sensing

open access: yesNanophotonics, Volume 15, Issue 17, 11 September 2026.
Inverse‐designed nanophotonic structures on a foundry‐compatible silicon nitride chip enable efficient in‐plane green excitation and broadband red emission extraction from diamond nitrogen‐vacancy centers. A compact emitter triples the guided optical power, while a directional coupler routes ∼80% of the fluorescence to detection, advancing miniaturized
Yuqing Zhou   +5 more
wiley   +1 more source

Probing Strong Coupling in Core–Shell Nanoparticles With Fast Electron Beams

open access: yesphysica status solidi (a), Volume 223, Issue 17, 9 September 2026.
An exact analytic formalism for evaluating electron‐energy loss and cathodoluminescence probabilities for core–shell nanoparticles explored by electron‐beam spectroscopies is derived. The formalism is exploited to understand strong exciton–plasmon and exciton–Mie mode coupling in nanophotonic architectures.
Annika Brandt   +3 more
wiley   +1 more source

Nonresonant Magnetic Flux Control Enabling Low‐Loss Epsilon‐Near‐Zero Cavity Antennas

open access: yesAdvanced Photonics Research, Volume 7, Issue 9, September 2026.
Can photonic doping be achieved without resonance? A passive metallic inclusion is shown to engineer effective permeability in epsilon‐near‐zero cavity antennas through magnetic‐flux exclusion, reproducing the response of resonant photonic dopants while reducing losses and providing a unified perspective on photonic doping.
Evandro César Vilas Boas   +1 more
wiley   +1 more source

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