Results 81 to 90 of about 378,914 (304)

Primordial Black Hole: Mass and Angular Momentum Evolution

, 2008
The evolution of the primordial low mass black hole (PBH) in hot universe is considered. Increase of mass and decrease of PBH spin due to the accretion of radiation dominated matter are estimated with using of results of numerical simulation of PBH ...
A. G. Doroshkevich, D. Carr, D. K. Nadezhin, G. S. Bisnovatyi-Kogan, G. S. Bisnovatyi-Kogan, G. S. Bisnovatyi-Kogan, O. Yu. Tsupko, P. J. Young, P. J. Young, V. P. Frolov, Ya. B. Zel’dovich, Ya. B. Zel’dovich, Ya. B. Zel’dovich   +12 more
core   +1 more source

Gravitational energy [PDF]

Classical and Quantum Gravity, 2005
Observers at rest in a stationary spacetime flat at infinity can measure small amounts of rest-mass+internal energies+kinetic energies+pressure energy in a small volume of fluid attached to a local inertial frame. The sum of these small amounts is the total "matter energy" for those observers.
openaire   +2 more sources

Using a Supramolecular Approach to Engineer Modular Hydrogel Platforms for Culturing Protoplasts – from General Tissue Engineering to Cellular Agriculture

Advanced Biology, EarlyView.
Using supramolecular monomers, various hydrogel culture systems were formulated to culture protoplasts; including 2D, 2.5D, and 3D hydrogels. Depending on the culture platform, bioactive functionalization led to protoplast enlargement (2D and 2.5D) or plasmolysis (3D). This work shows the potential to modularly engineer synthetic platforms for cellular
Maritza M. Rovers, Erik J. Slootweg, Ferdinand C. O. Los, Patricia Y. W. Dankers   +3 more
wiley   +1 more source

Slice Energy and Theories of Gravitation

, 2005
We review recent work on the use of the slice energy concept in generalized theories of gravitation. We focus on two special features in these theories, namely, the energy exchange between the matter component and the scalar field generated by the ...
J L Synge, S Cotsakis, S Cotsakis, S W Weinberg, Spiros Cotsakis, Y Choquet-Bruhat   +5 more
core   +2 more sources

Adipose Mesenchymal Stem Cell‐Derived Exosomes in Conjunction with Roflumilast Ameliorate Chronic Kidney Disease Through the Modulation of Fibrosis and Inflammation

Advanced Biology, EarlyView.
The novelty of this study showed that the injection of exosomes produced from ADMSCs in combination with Roflumilast poses a more favorable therapeutic outcome for CKD induced by Adriamycin, compared to therapy with exosomes or Roflumilast alone. Roflumilast and exosomes treatment lowered the expression of the apoptotic, fibrotic, and inflammatory ...
Mohamed Ali, Mohamed H. Sherif, Nashwa Barakat, Bassant Yahia, Ahmed A. Shokeir, Basel Sitohy   +5 more
wiley   +1 more source

Lower-order zonal gravitational coefficients caused by zonal circulations inside gaseous planets: Convective flows and numerical comparison between modeling approaches

Earth and Planetary Physics, 2020
To infer the internal equilibrium structure of a gaseous planet, especially the equation of state (EOS) and size of its inner core, requires accurate determination of lower-order zonal gravitational coefficients.
DaLi Kong, KeKe Zhang
doaj   +1 more source

Robocasting of a Water‐Based Biopolymer/WO3 Nanopowder Paste as a Precursor to Tungsten Carbide Lattices

Advanced Engineering Materials, EarlyView.
This study demonstrates a novel, additive manufacturing approach to produce complex, porous tungsten carbide structures using water‐based direct ink writing/robocasting. Leveraging a modified commercial printer and heat treatment, the process yields lightweight, electrically conductive 3D architectures capable of supporting a mechanical load.
James Bentley Bevis, Manasi Shah, Sanketh Gombi, Rodrigo Martinez‐Duarte   +3 more
wiley   +1 more source

Extended Theories of Gravitation

EPJ Web of Conferences, 2013
Extended theories of gravitation are naturally singled out by an analysis inspired by the Ehelers-Pirani-Schild framework. In this framework the structure of spacetime is described by a Weyl geometry which is enforced by dynamics.
Fatibene Lorenzo, Ferraris Marco, Francaviglia Mauro, Magnano Guido   +3 more
doaj   +1 more source

Mie's Theories of Matter and Gravitation [PDF]

, 2007
Unifying physics by describing a variety of interactions – or even all interactions – within a common framework has long been an alluring goal for physicists. One of the most ambitious attempts at unification was made in the 1910s by Gustav Mie.
Smeenk, Chris
core  

5D gravity and the discrepant G measurements

, 2003
It is shown that 5D Kaluza-Klein theory stabilized by an external bulk scalar field may solve the discrepant laboratory G measurements. This is achieved by an effective coupling between gravitation and the geomagnetic field.
A Cornaz, A Lichnerowicz, B Hubler, CH Bagley, ER Cohen, F Nolting, GG Luther, GI Moore, GJ Tuck, GT Gillies, J, J Dousse, J Luo, J Luo, J Ponce, J Schurr, J-P Mbelek, J-P Mbelek, JH Gundlach, JK Hoskins, JP Schwarz, K Kuroda, K Kuroda, LD Landau, M Oldham, M. U. Sagitov, MG Lloyd, MP Fitzgerald, MP Fitzgerald, MS Saulnier, OV Karagioz, PJ Mohr, PR Heyl, PS Wesson, RD Rose, SD Stacey, SJ Richman, T. J. Quinn, U Kleinevoss, X Yang, YT Chen   +40 more
core   +1 more source