Results 71 to 80 of about 2,494 (198)
Living Reviews in Relativity, 2008 Quantum gravity is expected to be necessary in order to understand situations in which classical general relativity breaks down. In particular in cosmology one has to deal with initial singularities, i.e., the fact that the backward evolution of a ...
Bojowald Martin
doaj
Horizon entropy with loop quantum gravity methods
Physics Letters B, 2015 We show that the spherically symmetric isolated horizon can be described in terms of an SU(2) connection and an su(2)-valued one-form, obeying certain constraints.
Daniele Pranzetti, Hanno Sahlmann
doaj +1 more source
Carbon Energy, EarlyView.Recent strategies address these challenges through ion‐specific regulation, encompassing chloride‐tolerant and chloride‐regulating anodes together with cathode designs that suppress OH− accumulation and Mg2+/Ca2+ coupling. This ion‐management‐oriented framework provides general guidelines for achieving stable, selective, and scalable seawater ...
Lina Li +5 more
wiley +1 more source
A possible quantum gravity hint in binary black hole merger
Physics Letters BWe present a semi-rigorous justification of Bekenstein's Generalized Second Law of Thermodynamics applicable to a universe with black holes present, based on a generic quantum gravity formulation of a black hole spacetime, where the bulk Hamiltonian ...
Parthasarathi Majumdar
doaj +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This study investigates Spanish broom (Spartium junceum) as a renewable source for electrospun composite membranes in sustainable water purification. MCC and biochar were functionalized with eco‐friendly precursors and nanomaterials (i.e., HNT, β‐CDs) to develop hybrid PVA nanofiber composites.
Giulia Rando +7 more
wiley +1 more source
Harnessing Thin‐Film Solid‐State Electrolytes: Enabling Breakthroughs in All‐Solid‐State Batteries
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Schematic illustration highlighting the advantages of transitioning from traditional thick solid‐state electrolytes (SSEs) to thin‐film SSEs. Thinning the electrolyte enables higher ionic conductivity, reduced interfacial polarization, improved flexibility, compact electrode contact, and enhanced energy density, offering a promising pathway toward high‐
Yitao He +3 more
wiley +1 more source
Living Reviews in Relativity, 2005 Quantum gravity is expected to be necessary in order to understand situations where classical general relativity breaks down. In particular in cosmology one has to deal with initial singularities, i.e., the fact that the backward evolution of a classical
Bojowald Martin
doaj
Rainbow-Like Black-Hole Metric from Loop Quantum Gravity
Universe, 2018 Hypersurface deformation algebra consists of a fruitful approach to derive deformed solutions of general relativity based on symmetry considerations with quantum-gravity effects, of which the linearization has been recently demonstrated to be connected ...
Iarley P. Lobo, Michele Ronco
doaj +1 more source
Revolutionizing Healthcare With Paper‐Based Nucleic Acid Testing
Exploration, EarlyView.This work summarizes strategies to enhance paper‐based devices for nucleic acid testing. Key approaches include optimizing paper platforms, improving nucleic acid amplification, and refining labeling/signaling methods. These advancements aim to boost sensitivity, speed, and usability, making paper‐based diagnostics more effective for point‐of‐care ...
Hong Zhang +8 more
wiley +1 more source
iNew Medicine, EarlyView.The Development and Future of Remote Robots in Urology. ABSTRACT Ever since the “Lindbergh Operation” in 2001, the field of remote robotic surgery has transformed from theoretical study toward practical clinical integration on a global scale. Considering the millimeter‐level precision that is required in the field of urological oncology, remote ...
Cheng Yang +6 more
wiley +1 more source