Results 271 to 280 of about 679,095 (339)

Weak Gravitational Galaxy-Galaxy Lensing

open access: yes, 2014
This thesis describes the theory and applications of weak gravitational galaxy-galaxy lensing. In particular, constraining the galaxies’ mean halo mass M200, concentration parameter c and ellipticity of the dark matter halo distribution ε1l. Weak gravitational lensing is the distortion of background galaxy images by matter distributions along the line ...
openaire   +1 more source

A Degradable Bioinspired Flier with Aerogel‐Based Colorimetric Sensors for Environmental Monitoring

open access: yesAdvanced Science, Volume 13, Issue 15, 13 March 2026.
Biodegradable fliers are developed inspired by Tipuana tipu samaras, integrating cellulose nanocrystal aerogel (CNCa) sensors loaded with natural dyes for pH and ammonia detection. The lightweight, degradable fliers mimic natural morphology and aerodynamics, offering an eco‐friendly, scalable solution for in situ environmental monitoring after passive ...
Gianpaolo Gallo   +4 more
wiley   +1 more source

Edible Pneumatic Battery for Sustained and Repeated Robot Actuation

open access: yesAdvanced Science, Volume 13, Issue 15, 13 March 2026.
This work presents an edible energy source and valve system to power soft, pneumatically driven edible robots. A chemical reaction between sodium bicarbonate and citric acid generates carbon dioxide gas, and a pressure‐triggered edible valve enables self‐repetitive motion of the edible actuator.
Bokeon Kwak   +5 more
wiley   +1 more source

Programming Next‐Generation Synthetic Biosensors by Genetic Circuit Design

open access: yesAdvanced Science, Volume 13, Issue 14, 9 March 2026.
Synthetic biology enables genetic circuit‐based biosensing to detect diverse targets, process signals, and transduce them into readable outputs or intracellular regulatory activities. However, field deployment and real‐world application of such synthetic biosensors face considerable challenges in sensitivity, specificity, speed, stability, and ...
Yuanli Gao   +4 more
wiley   +1 more source

Unified Analysis of Fermionic Tunneling, Barrow‐Exponential Entropy Corrections, and Plasma Lensing in Carrollian Reissner‐Nordström Spacetime

open access: yesAnnalen der Physik, Volume 538, Issue 3, March 2026.
Carrollian Reissner‐Nordström black holes are investigated through fermionic tunneling, entropy‐corrected thermodynamics, and plasma‐modified gravitational lensing. The generalized uncertainty principle introduces minimal‐length corrections to the Hawking temperature, while the combined Barrow‐Exponential entropy reveals smooth thermodynamic crossovers
Erdem Sucu, İzzet Sakallı, Yusuf Sucu
wiley   +1 more source

Strong long-term variability in active galactic nuclei affects virial black hole mass measurements. [PDF]

open access: yesNat Commun
Amrutha N   +7 more
europepmc   +1 more source

A New Padé Approach to Modeling Wormholes in Dekel‐Zhao Dark Matter Halos

open access: yesAnnalen der Physik, Volume 538, Issue 3, March 2026.
A matter‐first Padé strategy is introduced to build traversable wormholes from prescribed dark‐matter halos. Rational Padé fits approximately the Dekel–Zhao density and are analytically integrated to obtain a shape function that exactly reproduces the intended matter content, avoiding spurious poles of geometry‐first schemes.
Jonathan Alves Rebouças   +4 more
wiley   +1 more source

Discs no more: the morphology of low-mass simulated galaxies in FIREbox. [PDF]

open access: yesMon Not R Astron Soc
Benavides JA   +11 more
europepmc   +1 more source

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