Results 81 to 90 of about 6,607,101 (361)

Isotropic stars in general relativity

, 2013
We present a general solution of the Einstein gravitational field equations for the static spherically symmetric gravitational interior spacetime of an isotropic fluid sphere.
Harko, T., Mak, M. K.
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Symmetry breaking in general relativity [PDF]

, 1980
Bifurcation theory is used to analyze the space of solutions of Einstein's equations near a spacetime with symmetries. The methods developed here allow one to describe precisely how the symmetry is broken as one branches from a highly symmetric spacetime
Fischer, Arthur E., Marsden, Jerrold E., Moncrief, Vincent   +2 more
core  

Is general relativity `essentially understood' ?

, 2005
The content of Einstein's theory of gravitation is encoded in the properties of the solutions to his field equations. There has been obtained a wealth of information about these solutions in the ninety years the theory has been around.
Alcubierre, Allen, Anderson, Anderson, Andersson, Andersson, Andersson, Andersson, Andersson, Andersson, Andersson, Andersson, Bartnik, Bartnik, Bartnik, Baumgarte, Beig, Beig, Belinskii, Belinskii, Berger, Berger, Berger, Bizoń, Bizoń, Bondi, Brainerd, Bray, Bray, Brodbeck, Carter, Chae, Choptuik, Choquet-Bruhat, Choquet-Bruhat, Choquet-Bruhat, Christodoulou, Christodoulou, Chruściel, Chruściel, Chruściel, Chruściel, Chruściel, Chruściel, Chruściel, Chruściel, Clarke, Corvino, Corvino, Cutler, Dafermos, Dafermos, Dafermos, Dain, Dain, Dain, Dain, Dain, Einstein, Einstein, Einstein, Fischer, Fourès-Bruhat, Frauendiener, Frauendiener, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Frittelli, Frolov, Garfinkle, Gundlach, Gundlach, Gundlach, Gundlach, Hawking, Hawking, Hollands, Hughes, Huisken, Husa, Hübner, Isenberg, Israel, Israel, Klainerman, Klainerman, Klainerman, Kramer, Lee, Lehner, Lifshitz, Lindblad, Lindblad, Maxwell, Maxwell, Misner, Moncrief, Moncrief, Ori, Pais, Penrose, Penrose, Penrose, Penrose, Penrose, Poisson, Pound, Pretorius, Price, Rees, Rendall, Rendall, Rendall, Rendall, Rendall, Rendall, Reula, Ringström, Ringström, Ringström, Ringström, Sarbach, Schoen, Schoen, Smoller, Stellmacher, Szabados, Tataru, Thorne, Valiente Kroon, Valiente Kroon, Wainwright, Wald, Weisberg, Witten, Yoneda   +146 more
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Anisotropic stars as ultracompact objects in general relativity [PDF]

Physical Review D, 2018
Anisotropic stresses are ubiquitous in nature, but their modeling in General Relativity is poorly understood and frame dependent. We introduce the first study on the dynamical properties of anisotropic self-gravitating fluids in a covariant framework ...
G. Raposo, P. Pani, Miguel Bezares, C. Palenzuela, V. Cardoso   +4 more
semanticscholar   +1 more source

Emergent gravity, violated relativity and dark matter

, 2014
The nonlinear affine Goldstone model of the emergent gravity, built on the nonlinearly realized/hidden affine symmetry, is concisely revisited. Beyond General Relativity, the explicit violation of general invariance/relativity, under preserving general ...
Pirogov, Yu. F.
core   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Comment on “Construction of regular black holes in general relativity” [PDF]

Physical Review D, 2018
We claim that the physical parameters of the constructed black hole solutions in general relativity (GR) coupled to nonlinear electrodynamics (NED) by Zhong-Ying Fan and Xiaobao Wang in the Paper [Phys. Rev.
B. Toshmatov, Z. Stuchl'ik, B. Ahmedov
semanticscholar   +1 more source