Results 51 to 60 of about 2,111,070 (287)
Foundations of Physics Letters, 2006 Following fresh attempts to resolve the problem of the energy density of the vacuum, we reconsider the case where the cosmological constant is derived from a higher-dimensional version of general relativity, and interpret the gauge-dependence of $ $ as a dynamical effect. This leads to a relation between the change in $ $ and the line element (action)
openaire +2 more sources
FEBS Letters, EarlyView.Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman +2 more
wiley +1 more source
Characteristics analysis of compact cesium atomic clock with magnetic state selection
Frontiers in Physics, 2022 This paper introduces a compact magnetic state-selection cesium atomic clock called LIP Cs-3000 and analyses its characteristics. The test results reveal that the ranges of the line width, peak-to-valley ratio and signal-to-noise ratio of Ramsey pattern ...
Jiang Chen +12 more
doaj +1 more source
, 2012 Birkhoff's theorem for spherically symmetric vacuum spacetimes is a key theorem in studying local systems in general relativity theory. However realistic local systems are only approximately spherically symmetric and only approximately vacuum.
A. Krasinski +9 more
core +1 more source
Cosmological and Astrophysical Probes of Vacuum Energy [PDF]
, 2015 Vacuum energy changes during cosmological phase transitions and becomes relatively important at epochs just before phase transitions. For a viable cosmology the vacuum energy just after a phase transition must be set by the critical temperature of the ...
Bellazzini, Brando +4 more
core +3 more sources
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source
Thermodynamics of Fuzzy Spheres in PP-wave Matrix Model
, 2004 We discuss thermodynamics of fuzzy spheres in a matrix model on a pp-wave background. The exact free energy in the fuzzy sphere vacuum is computed in the \mu -> \infty limit for an arbitrary matrix size N.
Bak +23 more
core +1 more source
Cell wall target fragment discovery using a low‐cost, minimal fragment library
FEBS Letters, EarlyView.LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan +5 more
wiley +1 more source
THE STOCHASTIC APPROACHES OF PROCESSES’ DESIGN IN VACUUM-PLASMA FORMATION OF NANOSTRUCTURED COATINGS
Литьë и металлургия, 2017 The calculations of the spatial and energy parameters of a single-component metal plasma flow which is moved in a process gas environment using a numerical algorithm of test particle stochastic method are discussed.
I. A. Ivanou +2 more
doaj +1 more source
Numerical simulation of the dolomite in-situ desulfurization in molten iron
Materials Research Express, 2023 With the growing need for high-quality steel, the requirement for efficient deep desulfurization technologies is growing, and lots of research have be conducted.
Shen Qiao-kun +4 more
doaj +1 more source