Results 41 to 50 of about 26,615 (223)

Thermal Evolution of the Intergalactic Medium due to Lyα Photons during the Cosmic Dawn

The Astrophysical Journal
The first star-forming objects that formed at high redshifts during the cosmic dawn (CD) also emitted photons between Ly α and Lyman-limit frequencies. These photons are instrumental in coupling the spin temperature of the neutral hydrogen (H i ) atoms ...
Janakee Raste, Anjan Kumar Sarkar, Shiv K. Sethi   +2 more
doaj   +1 more source

Microfluidic Nano‐Assembly of Red‐Blood‐Cell (RBC) Lipids and Components for Engineering Extracellular Vesicles

Advanced Healthcare Materials, EarlyView.
Engineered red blood cell‐derived extracellular vesicles (eRBCEVs) are synthesized via controlled microfluidic assembly from native RBC lipids, enabling tunable encapsulation of proteins, nucleic acids, nanoparticles, and viral vectors. The platform demonstrates reproducible nanoscale architecture, preserved membrane composition, and functional cargo ...
Chiranth K. Nagaraj, Xilal Y. Rima, Kim T. Nguyen, Courtney Culkins, Nana Boateng, Jacob Doon‐Ralls, Alejandro Bresolin, Xin Huang, Hong Li, Vahedi Amid, Ajeet Pal Singh, Dharti Shantaram, Anastasiia Amari, Mangesh D. Hade, Nicholas R. Merriam, Zachary D. Schultz, Scott Q. Harper, Nizar Y. Saad, Setty M. Magaña, Willa A. Hsueh, Rachel E. Kopec, Blaise R. Kimmel, Andre F. Palmer, Eduardo Reátegui   +23 more
wiley   +1 more source

The Effect of Cervical Collar on Standing Balance in Different Positions of Head and Neck

Journal of Rehabilitation, 2010
Objective: Patients suffering from neck pain are usually advised to wear a cervical collar in an attempt to relieve symptoms of pain and muscle spasm or to limit neck movements.
Iman Rezaei, Mohsen Razeghi, Shohreh Taghi-Zadeh, Haleh Ghaem   +3 more
doaj  

Cellular Responses to Mechanical Cues Across Scales: From Fundamental Insights to Translational Potential

Advanced Healthcare Materials, EarlyView.
This review examines how cellular behavior is regulated by mechanical cues transmitted through soft biomaterials, from single‐cell mechanosensing to tissue‐level adaptation. It highlights why physiological relevance, rather than model complexity alone, is critical for translational mechanobiology and introduces a scoring framework linking material ...
Mathias Polz, Manuel P. Kainz, Niklas Haider, Theresa Rienmüller, Kerstin Lenk, Rupert Kargl, Michele Terzano, Gerhard Sommer, Gerhard A. Holzapfel, Julia Fuchs   +9 more
wiley   +1 more source

Multicomponent Peptide‐MXene‐Hyaluronic Acid Hydrogel as a Conductive Scaffold for Enhanced Fibroblast Proliferation and Migration Under Electrical Stimulation

Advanced Healthcare Materials, EarlyView.
An electrically conductive FmocFF/MXene/hyaluronic acid hydrogel combines extracellular matrix‐like architecture, self‐healing behavior, oxidation‐resistant conductivity, and biochemical cues in a single scaffold. By enabling physiologically relevant electrical stimulation, the platform enhances fibroblast attachment, proliferation, and migration ...
Offir Loboda, Dana Cohen‐Gerassi, Dor Aaron Goldstein, Or Messer, Bar Favelukis, Ehud Gazit, Maxim Sokol, Lihi Adler‐Abramovich   +7 more
wiley   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

PLASMA WALL TRANSITION AND EFFECTS OF GEOMETRY IN PRESHEATH

East European Journal of Physics, 2017
When plasma interacts with the wall of a conductor, electrons due to high mobility reach the wall first and develop negative potential on the wall and very near to the wall plasma is divided into sheath and presheath regions.
S. Ahmad, K. Chaudhary
doaj  

Boundary layer analysis and quasi-neutral limits in the drift-diffusion equations [PDF]

ESAIM: Mathematical Modelling and Numerical Analysis, 2001
Let \(\Omega\) be an open and bounded domain in \(\mathbb{R} ^d, d\geq 1\), whose boundary consists of two disjoint sets \(\Gamma_D\) and \(\Gamma_N\). Set \[ \Omega_T=(0,T)\times\Omega, \quad \Sigma_D=(0,T)\times\Gamma_D, \quad \Sigma_N=(0,T)\times\Gamma_N, T>0.
openaire   +2 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Quasinormal modes of extremal Reissner-Nordström black holes via Seiberg-Witten quantization

Journal of High Energy Physics
We study the scalar perturbations of asymptotically flat extremal Reissner-Nordström black holes via the quantum Seiberg-Witten geometry of N $$ \mathcal{N} $$ = 2 SU(2) gauge theory with N f = 2 flavors.
Yi-Rong Wang, Peng Yang, Kilar Zhang
doaj   +1 more source