Results 81 to 90 of about 681,612 (344)

Disformal transformation of cosmological perturbations

Physics Letters B, 2014
We investigate the gauge-invariant cosmological perturbations in the gravity and matter frames in the general scalar–tensor theory where two frames are related by the disformal transformation.
Masato Minamitsuji
doaj   +1 more source

Scalar curvature and projective compactness

Journal of Geometry and Physics, 2015
Final version to be published in J. Geom. Phys. Includes minor typo corrections and a new summarising corollary.
Andreas Cap, A. Rod Gover
openaire   +4 more sources

Redox‐dependent binding and conformational equilibria govern the fluorescence decay of NAD(P)H in living cells

FEBS Letters, EarlyView.
In this work, we reveal how different enzyme binding configurations influence the fluorescence decay of NAD(P)H in live cells using time‐resolved anisotropy imaging and fluorescence lifetime imaging microscopy (FLIM). Mathematical modelling shows that the redox states of the NAD and NADP pools govern these configurations, shaping their fluorescence ...
Thomas S. Blacker, Nimit Mistry, Nicoletta Plotegher, Elizabeth R. Westbrook, Michael D. E. Sewell, John Carroll, Gyorgy Szabadkai, Angus J. Bain, Michael R. Duchen   +8 more
wiley   +1 more source

Bures distance between two displaced thermal states

, 1999
The Bures distance between two displaced thermal states and the corresponding geometric quantities (statistical metric, volume element, scalar curvature) are computed.
C. W. Gardiner, Gh.-S. Paraoanu, H. Scutaru, Horia Scutaru, J. Dittman, J. Fearn, J. Josza, J. P. Provost, J. Twamley, M. Hübner, M. Hübner, P. B. Slater, P. B. Slater, P. B. Slater, R. M. Wilcox, R. S. Ingarden, S. L. Braunstein, S. L. Braunstein   +17 more
core   +1 more source

Remarks on a result of Chen-Cheng

Complex Manifolds
In their seminal work, Chen and Cheng proved a priori estimates for the constant scalar curvature metrics on compact Kähler manifolds. They also prove C3,α{C}^{3,\alpha }-estimate for the potential of the Kähler metrics under boundedness assumption on ...
Lu Zhiqin, Seyyedali Reza
doaj   +1 more source

Scalar Curvature and Intrinsic Flat Convergence [PDF]

, 2016
Herein we present open problems and survey examples and theorems concerning sequences of Riemannian manifolds with uniform lower bounds on scalar curvature and their limit spaces.
C. Sormani
semanticscholar   +1 more source

Exploring lipid diversity and minimalism to define membrane requirements for synthetic cells

FEBS Letters, EarlyView.
Designing the lipid membrane of synthetic cells is a complex task, in which its various roles (among them solute transport, membrane protein support, and self‐replication) should all be integrated. In this review, we report the latest top‐down and bottom‐up advances and discuss compatibility and complexity issues of current engineering approaches ...
Sergiy Gan, Victoria Scarpelli, Marten Exterkate   +2 more
wiley   +1 more source

Schwinger Pair Production in dS_2 and AdS_2

, 2009
We study Schwinger pair production in scalar QED from a uniform electric field in dS_2 with scalar curvature R_{dS} = 2 H^2 and in AdS_2 with R_{AdS} = - 2 K^2. With suitable boundary conditions, we find that the pair-production rate is the same analytic
A. D. Polyanin, A. I. Nikishov, C. W. Misner, Don N. Page, L. V. Keldysh, M. Abramowitz, N. B. Narozhnyi, N. B. Narozhnyi, S. W. Hawking, Sang Pyo Kim, V. Weisskopf, V. S. Popov, V. S. Popov, V. S. Popov, V. S. Popov, Y. Choquet-Bruhat   +15 more
core   +1 more source

Dynamical Analysis of Scalar Field Cosmologies with Spatial Curvature

The Open Journal of Astrophysics, 2016
We explore the dynamical behaviour of cosmological models involving a scalar field (with an exponential potential and a canonical kinetic term) and a matter fluid with spatial curvature included in the equations of motion.
Mateja Gosenca, Peter Coles
doaj   +2 more sources

Ergothioneine supplementation improves pup phenotype and survival in a murine model of spinal muscular atrophy

FEBS Letters, EarlyView.
Spinal muscular atrophy (SMA) is a genetic disease affecting motor neurons. Individuals with SMA experience mitochondrial dysfunction and oxidative stress. The aim of the study was to investigate the effect of an antioxidant and neuroprotective substance, ergothioneine (ERGO), on an SMNΔ7 mouse model of SMA.
Francesca Cadile, Daniela Ratto, Giorgia Rastelli, Ottavia Eleonora Ferraro, Caterina Temporini, Sunil Kumar, Simona Boncompagni, Paola Rossi, Monica Canepari   +8 more
wiley   +1 more source