Results 161 to 170 of about 428,876 (333)

Velocity Acoustic Oscillations on Cosmic Dawn 21 cm Power Spectrum as a Probe of Small-scale Density Fluctuations

open access: yesThe Astrophysical Journal
We investigate the feasibility of using the velocity acoustic oscillations (VAO) features on the Cosmic Dawn 21 cm power spectrum to probe small-scale density fluctuations.
Xin Zhang   +6 more
doaj   +1 more source

Reduced Switching Threshold and Photo‐Modulated Dynamics in Self‐Organized Hybrid Ag/pV3D3 Nanoparticle Networks: Toward Photoresponsivity in Neural‐Like Networks

open access: yesAdvanced Materials Interfaces, EarlyView.
Self‐organized silver nanoparticle networks coated with poly(1,3,5‐trivinyl‐1,3,5‐trimethyl‐cyclosiloxane) via initiated chemical vapor deposition exhibit a markedly reduced switching threshold (0.5 V vs 3 V). Time‐series analysis reveals that visible‐light illumination modulates the resistive switching activity, with blue light showing pronounced ...
Blessing Adejube   +12 more
wiley   +1 more source

The Warm Dark Matter Doorframe for Light Dark Matter Direct Detection Experiments

open access: yes, 2019
If dark matter has even been in sufficient thermal contact with the visible sector and sufficiently light ($m_ \lesssim\mathcal{O}(10)~\text{keV}$), the thermal motion inherited from the visible sector will cause significant free streaming effect which is subject to the structure formation constraint, similar to the benchmark thermal warm dark matter ...
Huo, Ran, Xu, Tao
openaire   +2 more sources

Transparent, Sprayable Plastic Films for Luminescent Down‐Shifted‐Assisted Plant Growth

open access: yesAdvanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
Spreading the light: A modular approach to down‐shifting europium‐containing polyoxotitanium luminescent cages is developed, allowing their incorporation into sprayable plastic coatings on agricultural greenhouses for accelerated plant growth. Abstract The world's steadily growing population and global heating due to climate change are a threat to food
Rosa Müller   +17 more
wiley   +1 more source

Cosmological implications of Kalb-Ramond-like particles

open access: yesJournal of High Energy Physics
The Kalb-Ramond field is an antisymmetric, rank-two tensor field which most notably appears in the context of string theory, but has largely been unexplored in the context of cosmology.
Christian Capanelli   +3 more
doaj   +1 more source

Microbial Contribution to Soiling and Its Impact on Photovoltaic Module Soiling in Arid Zones of the Atacama Desert

open access: yesAdvanced Sustainable Systems, EarlyView.
Microorganisms colonizing photovoltaic surfaces in the Atacama desert form biofilms that enhance particle adhesion and reduce energy yield. This study identifies UV‐resistant bacteria and carotenoid‐producing strains that interfere with PV performance.
Douglas Olivares   +8 more
wiley   +1 more source

Warm dark matter and sterile neutrinos

open access: yes, 2020
Plenary Talk from Neutrino ...
openaire   +1 more source

Multiomics Analyses Reveal an Essential Role of Tryptophan in Treatment of csDMARDs in Rheumatoid Arthritis

open access: yesAdvanced Science, EarlyView.
Rheumatoid arthritis is a disease characterized by joint inflammation. Approximately 50% of patients show insufficient response to traditional synthetic disease‐modifying antirheumatic drugs. This study aims to elucidate differential molecular profiles of the mechanisms underlying drug responses through multi‐omics strategy.
Congcong Jian   +26 more
wiley   +1 more source

Metformin Restores Mitochondrial Function and Neurogenesis in POLG Patient‐Derived Brain Organoids

open access: yesAdvanced Science, EarlyView.
Patient‐derived POLG‐mutant cortical organoids reveal neuronal subtype‐specific mitochondrial and synaptic defects, with dopaminergic neurons most affected. Metformin treatment restores neuronal identity, mitochondrial function, and excitability, increased mtDNA maintenance, and reprogrammed metabolism via TCA and redox pathways.
Zhuoyuan Zhang   +6 more
wiley   +1 more source

Tie2‐Dependent Mechanisms Influence Leptomeningeal Collateral Dynamics and Reperfusion Following Stroke

open access: yesAdvanced Science, EarlyView.
This work demonstrates that endothelial EphA4 limits Tie2 activation and curbs leptomeningeal collateral expansion after ischemic stroke. Pharmacological activation of Tie2 by an Ang‐1 mimetic or genetic loss of EphA4 stimulates collateral vessel growth, improves cerebral perfusion, and enhances neurological recovery.
Alexandra M. Kaloss   +9 more
wiley   +1 more source

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