Results 91 to 100 of about 68,696 (263)
Wave propagation in modified gravity
Physical Review D, 2016 We investigate the propagation of scalar waves induced by matter sources in the context of scalar-tensor theories of gravity which include screening mechanisms for the scalar degree of freedom. The usual approach when studying these theories in the non-linear regime of cosmological perturbations is based on the assumption that scalar waves travel at ...
Lindroos, Jan Ø. +2 more
openaire +2 more sources
Portable Molecularly Imprinted Polymer Sensor for Rapid Swab‐Based Detection of Norovirus
Advanced Healthcare Materials, EarlyView.This work reports a rapid, portable smartphone‐based sensor capable of detecting four norovirus genotypes from swab samples within 15 min. Sensor selectivity was validated through evaluation against four common live viruses. The swab‐based sampling process enabled simple sample preparation combined with the compact detection system, supporting use of ...
Amy Dann +13 more
wiley +1 more source
Encoded Cell‐Material Interactions to Reroute Cytokine Signaling for Regenerative Medicine
Advanced Healthcare Materials, EarlyView.We present native MATRIX (Material Activated To Regulate Inducible gene eXpression), a co‐engineered material‐cell platform. Surfaces functionalized with antibodies for endogenous soluble ligands (e.g., IL‐1β or IL‐6) capture and immobilize ligands for presentation to a cognate, engineered synthetic Notch receptor, releasing a transcription factor (TF)
Zachary M. Eidman +7 more
wiley +1 more source
Irreversible Geometrothermodynamics of Open Systems in Modified Gravity. [PDF]
Entropy (Basel), 2023 Pinto MAS, Harko T, Lobo FSN.
europepmc +1 more source
Cosmological hints of modified gravity?
Physical Review D, 2016 The recent measurements of Cosmic Microwave Background temperature and polarization anisotropies made by the Planck satellite have provided impressive confirmation of the $Λ$CDM cosmological model. However interesting hints of slight deviations from $Λ$CDM have been found, including a $95 \%$ c.l. preference for a "modified gravity" structure formation
DI VALENTINO, ELEONORA +2 more
openaire +4 more sources
Stability of Medicinal Nanoemulsions to Spaceflight: Insights From the StarMed Experiment
Advanced Healthcare Materials, EarlyView.Chitosan‐coated melatonin nanoemulsions (MN) recovered from a sounding rocket mission preserve droplet size and controlled‐release behavior, whereas uncoated nanoemulsions show ageing‐driven droplet growth and increased accessible drug fraction. Simple polymer coatings thus enhance the flight resilience of liquid space medicines under cumulative launch
Modupe Adebowale +4 more
wiley +1 more source
A Comprehensive Analysis of Hyperbolical Fluids in Modified Gravity. [PDF]
Entropy (Basel), 2022 Yousaf Z, Bhatti MZ, Khlopov M, Asad H.
europepmc +1 more source
COSMIC ACCELERATION AND MODIFIED GRAVITY
International Journal of Modern Physics D, 2007 I briefly discuss some attempts to construct a consistent modification to general relativity (GR) that might explain the observed late-time acceleration of the Universe and provide an alternative to dark energy. I describe the issues facing extensions to GR, illustrate these with a specific example, and discuss the resulting observational and ...
openaire +2 more sources
A viable model for modified gravity [PDF]
Astrophysics and Space Science, 2014 We propose a model for modified gravity that meets the conditions of viability. The model has stable constant curvature solution and for an special case contains flat space time solution. The model also leads to matter stability under small perturbations of scalar curvature.
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Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine
Advanced Materials, EarlyView.A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen +5 more
wiley +1 more source