Results 111 to 120 of about 1,951 (268)

Multispectral Sirens: Gravitational-wave Cosmology with (Multi-) Subpopulations of Binary Black Holes

open access: yesThe Astrophysical Journal
The cosmic expansion rate can be directly measured with gravitational-wave (GW) data of the compact binary mergers by jointly constraining the mass function of the population and the cosmological model via the so-called spectral sirens.
Yin-Jie Li   +3 more
doaj   +1 more source

Fluorescent Polymeric Nanofibers as Ratiometric Multiplexed Skin Sensors of pH and Oxygen

open access: yesAdvanced Healthcare Materials, EarlyView.
Fluorescent polymeric nanofibers and nanorods are produced as ratiometric sensors of two important physiological parameters: pH and oxygen. They operate by dual Forster resonance energy transfer from large number of energy donor dyes to limited number of two distinct energy acceptors, enabling simultaneous sensing of pH and oxygen.
Rémi Pelletier   +2 more
wiley   +1 more source

The Delayed Radio Emission in the Black Hole X-Ray Binary MAXI J1348-630

open access: yesThe Astrophysical Journal Letters
We explore the coupling between the accretion flow and the jet in black hole X-ray binary MAXI J1348-630 by analyzing the X-ray and radio observations during its 2019 outburst.
Bei You   +4 more
doaj   +1 more source

Fibrillar Bundles as Fibrous Filler Materials for Attaining Cell Anisotropy in Bioprinting

open access: yesAdvanced Healthcare Materials, EarlyView.
Fibrillar bundles are introduced as a bioprintable additive that enables robust and scalable cellular alignment within 3D constructs through flow‐induced orientation during extrusion. These fibers support strong cell adhesion and polarization across various cell types and significantly enhance myotube alignment in Gelatine‐Methacryloyl (GelMA ...
Sven Heilig   +10 more
wiley   +1 more source

Magnetized Accretion Flows: The Key Roles of Viscosity and Black Hole Mass

open access: yesThe Astrophysical Journal
In our previous work, we constructed a black hole accretion model incorporating magnetic fields and disk winds. However, this model was derived under conditions of a small viscosity parameter α ( α < α _crit , where α _crit is the critical viscosity ...
Wen-Biao Wu
doaj   +1 more source

Characterization of an Injectable Poly(vinyl alcohol)‐gelatin Hydrogel for Growth Factor Delivery in an Orthopedic Application

open access: yesAdvanced Healthcare Materials, EarlyView.
This work introduces photo‐crosslinkable tyraminated poly(vinyl alcohol)‐gelatin (PVA‐GT) hydrogels as tunable injectable platforms for tissue engineering and growth factor delivery applications. This schematic illustrates the two developed hydrogel formulations and the experimental workflow used to evaluate their physico‐chemical properties in vitro ...
Alessia Longoni   +15 more
wiley   +1 more source

Spectroscopy of the Stellar Wind in the Cygnus X-1 System

open access: yesActa Polytechnica, 2011
The X-ray luminosity of black holes is produced through the accretion of material from their companion stars. Depending on the mass of the donor star, accretion of the material falling onto the black hole through the inner Lagrange point of the system or
I. Miškovičová   +5 more
doaj  

Fine-tuned Supernova or Failed Explosion? Decoding the Origins of the G3425 Binary

open access: yesThe Astrophysical Journal Letters
A binary system (G3425) consisting of a massive unseen component and a red giant star on a nearly circular orbit was recently discovered. The formation of such a system is puzzling because orbital stability generally breaks down due to the large mass ...
Zsolt Regály   +2 more
doaj   +1 more source

Spin Evolution of Stellar-mass Black Hole Binaries in Active Galactic Nuclei

open access: hybrid, 2020
Hiromichi Tagawa   +3 more
openalex   +1 more source

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