Zobrazeno 1 - 10
of 1 199
pro vyhledávání: '"M. A. Sheikh"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-27 (2024)
Abstract We reconsider formulating D dimensional gauge theories, with the focus on the case of gravity theories, in spacetimes with boundaries. We extend covariant phase space formalism to the cases in which boundaries are allowed to fluctuate. We an
Externí odkaz:
https://doaj.org/article/980bf6c444b442ab865b35e4270886ac
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-36 (2024)
Abstract We study 4 dimensional (4d) gravitational waves (GWs) with compact wavefronts, generalizing Robinson-Trautman (RT) solutions in Einstein gravity with an arbitrary cosmological constant. We construct the most general solution of the GWs in th
Externí odkaz:
https://doaj.org/article/afc78119448f4ac99dc3abec53012b10
Autor:
Barry J. Byrne, Giancarlo Parenti, Benedikt Schoser, Ans T. van der Ploeg, Hung Do, Brian Fox, Mitchell Goldman, Franklin K. Johnson, Jia Kang, Nickita Mehta, John Mondick, M. Osman Sheikh, Sheela Sitaraman Das, Steven Tuske, Jon Brudvig, Jill M. Weimer, Tahseen Mozaffar
Publikováno v:
Frontiers in Neurology, Vol 15 (2024)
Enzyme replacement therapy (ERT) is the only approved disease-modifying treatment modality for Pompe disease, a rare, inherited metabolic disorder caused by a deficiency in the acid α-glucosidase (GAA) enzyme that catabolizes lysosomal glycogen. Fir
Externí odkaz:
https://doaj.org/article/80f9631db5ec471a9488eaff38c0f152
Publikováno v:
Journal of Nanostructures, Vol 1, Iss 2, Pp 145-152 (2011)
In this paper, a nanostructured modified electrode was fabricated by incorporating of 2,2′-[1,9-nonanediylbis(nitriloethylidyne)]-bis-hydroquinone (NNH) as a newly synthesized modifier and TiO2 nanoparticles to the carbon paste (MTCPE) and then was
Externí odkaz:
https://doaj.org/article/08f21d2f35054e5e883cc65898fb4b5b
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 3, Pp 1-14 (2024)
Abstract Within the Friedmann–Lemaître–Robertson–Walker (FLRW) framework, the Hubble constant $$H_0$$ H 0 is an integration constant. Thus, consistency of the model demands observational constancy of $$H_0$$ H 0 . We demonstrate redshift evolu
Externí odkaz:
https://doaj.org/article/eb32e53d14414d398c6614e650fec847
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 2, Pp 1-36 (2024)
Abstract We study pure D dimensional Einstein gravity in spacetimes with a generic null boundary. We focus on the symplectic form of the solution phase space which comprises a 2D dimensional boundary part and a 2(D(D − 3)/2 + 1) dimensional bulk pa
Externí odkaz:
https://doaj.org/article/8fdd9de4ce234235817aed6dd81c84c5
Publikováno v:
Polytechnic, Vol 12, Iss 2, Pp 136-147 (2023)
Drought is among the most severe natural calamities induced by lack of water, having a negative implication on water resources and agriculture in the affected area. Drought types and severity vary by location, so understanding the spatial distributio
Externí odkaz:
https://doaj.org/article/1ffbff187be74ef4b2689af8194e16af
Publikováno v:
Polytechnic, Vol 12, Iss 2, Pp 129-135 (2023)
The study is being conducted with the goal of applying various models and techniques for catchment delineation and providing the opportunity to determine the Curve Numbers (CN) for the Rawanduz river basin (2956 Km2 ), which is located in the northea
Externí odkaz:
https://doaj.org/article/1014d9d63ccb47e3b1ba7feb2174df07
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 9, Pp 1-6 (2023)
Abstract We show that the Friedmann–Lemaître–Robertson–Walker (FLRW) framework has an instability towards the growth of fluid flow anisotropies, even if the Universe is accelerating. This flow (tilt) instability in the matter sector is invisib
Externí odkaz:
https://doaj.org/article/862c628328bf4629ac8420ffdca6fce8
Publikováno v:
Universe, Vol 10, Iss 8, p 305 (2024)
ΛCDM tensions are by definition model-dependent; one sees anomalies through the prism of ΛCDM. Thus, progress towards tension resolution necessitates checking the consistency of the ΛCDM model to localise missing physics either in redshift or scal
Externí odkaz:
https://doaj.org/article/ef2b0fdb8f62471d8d52203bf42031da