Results 51 to 60 of about 16,048 (167)

Three‐Dimensional Hierarchical Nanowire‐Networks with Deep‐Focus Tolerance and Adhesion Robustness for Harsh‐Environment SERS Sensing

open access: yesAdvanced Functional Materials, Volume 36, Issue 34, 27 April 2026.
A 3D nanowire‐network SERS substrate with robust adhesion is developed, featuring pronounced z‐direction optical activity, ultralow detection limit (1.5 × 10−13 M), and excellent signal uniformity (RSD < 10%). Enabled by enhanced light scattering, increased optical density of states, and structural reinforcement, the substrate demonstrates stable, high‐
Jinglai Duan   +6 more
wiley   +1 more source

The Role of the Brain in Conscious Processes: A New Way of Looking at the Neural Correlates of Consciousness

open access: yesFrontiers in Psychology, 2018
This article presents a new interpretation of the consciousness-related neuroscientific findings using the framework of stochastic electrodynamics (SED), a branch of physics that sheds light on the basic principles underlying quantum systems.
Joachim Keppler
doaj   +1 more source

Non-Markovian stochastic processes and the wave-like properties of matter

open access: yes, 2004
A non-markovian stochastic model is shown to lead to a universal relationship between particle's energy, driven frequency and a frequency of interaction with the medium.
Pinheiro, Mario J.
core   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

The Prediction of Short‐Term Atmospheric Density in Lower Thermosphere

open access: yesSpace Weather, Volume 24, Issue 4, April 2026.
Abstract Accurate short‐term prediction of atmospheric density in the lower thermosphere (85–125 km) is essential for precise orbit determination and satellite drag mitigation, particularly during geomagnetic storms. Although physics‐based models such as NRLMSIS 2.1 provide empirical estimates, their effectiveness is limited under extreme space weather.
Zheng Li   +4 more
wiley   +1 more source

Short‐Term Variability of Jupiter's Satellite Footprints as Spotted by JWST

open access: yesGeophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract We present the main Alfvén wing (MAW) spots of Io and Europa as observed by the Near‐Infrared Spectrograph onboard the James Webb Space Telescope. These auroral footprint features have been measured previously, but only in emission. Here, the derived ionospheric H3+ ${\mathrm{H}}_{3}^{+}$ emission, temperature and column density are reported ...
Katie L. Knowles   +10 more
wiley   +1 more source

Emerging Device Applications From Strong Light–Matter Interactions in 2D Materials

open access: yesAdvanced Science, Volume 13, Issue 17, 23 March 2026.
Two‐dimensional semiconductors enable extremely compact optoelectronic devices such as solar cells, sensors, LEDs, and lasers. Their strong light–matter interactions allow efficient light emission, detection, and energy conversion. This review article discusses the recent progress in integrating these materials with optical cavities and nanostructures ...
Janani Archana K   +7 more
wiley   +1 more source

An Alternative Approach to Spontaneous Photon Triplets Generation

open access: yesAdvanced Physics Research, Volume 5, Issue 3, March 2026.
Day by day, communication and computing technologies are progressing at a lightning speed, which is particularly true of the quantum version of these technologies (QIST). Increasingly, these technologies are emerging from unusual and sometimes bewildering quantum optical effects, which are based on exotic quantum physical theories.
Serge Gauvin
wiley   +1 more source

Falsifying cosmological models based on a non-linear electrodynamics

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
Recently, the nonlinear electrodynamics (NED) has been gaining attention to generate primordial magnetic fields in the Universe and also to resolve singularity problems. Moreover, recent works have shown the crucial role of the NED on the inflation. This
Ali Övgün   +3 more
doaj   +1 more source

Toward a Dynamic Model for Topside Ionospheric Irregularities: Spherical Harmonic Decomposition

open access: yesSpace Weather, Volume 24, Issue 3, March 2026.
Abstract Ionospheric irregularities arise from highly dynamic and turbulent processes related to magnetosphere‐ionosphere coupling and can lead to electromagnetic signal distortion or loss of lock events in global navigation satellite system signals, representing a hazard associated with space weather events. For this reason, understanding and modeling
S. Mestici   +6 more
wiley   +1 more source

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