Results 71 to 80 of about 137,035 (279)

A Novel Scheme with FG-FFT for Analysis of Electromagnetic Scattering from Large Objects

open access: yesInternational Journal of Antennas and Propagation, 2017
The replacement values to the singularity of fitting Green’s function are intensively researched in Fitting Green’s function Fast Fourier Transformation (FG-FFT).
Jia-Ye Xie   +4 more
doaj   +1 more source

Green’s Function Estimates for Time-Fractional Evolution Equations

open access: yesFractal and Fractional, 2019
We look at estimates for the Green’s function of time-fractional evolution equations of the form D 0 + ∗ ν u = L u , where D 0 + ∗ ν is a Caputo-type time-fractional derivative, depending on a Lévy ...
Ifan Johnston, Vassili Kolokoltsov
doaj   +1 more source

A Study of the gluon ladder in diffractive processes. [PDF]

open access: yes, 2004
The solution to the non–forward BFKL equation in the Leading Logarithmic approximation is expressed in terms of a sum of iterations of its kernel directly in transverse momentum and rapidity space.
Andersen, Jeppe R, Sabio, Vera Agustin
core  

Green's function for gravitational waves in FRW spacetimes

open access: yes, 1993
A method for calculating the retarded Green's function for the gravitational wave equation in Friedmann-Roberson-Walker spacetimes, within the formalism of linearized Einstein gravity is developed.
A. Kosowsky   +27 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS 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   +9 more
wiley   +1 more source

Green's function topology of Majorana wires

open access: yesNew Journal of Physics, 2013
We represent the $\mathbb {Z}_2$ topological invariant characterizing a one-dimensional topological superconductor using a Wess–Zumino–Witten dimensional extension. The invariant is formulated in terms of the single-particle Green's function which allows
Jan Carl Budich, Björn Trauzettel
doaj   +1 more source

Cancellation of Spurious Arrivals in Green’s Function Extraction [PDF]

open access: yes, 2008
The extraction of the Green\u27s function by cross correlation of waves recorded at two receivers nowadays finds much application. We show that for an arbitrary small scatterer, the cross terms of scattered waves give an unphysical wave with an arrival ...
van Wijk, Kasper
core   +1 more source

Orthogonal Polynomial Representation of Imaginary-Time Green's Functions

open access: yes, 2011
We study the expansion of single-particle and two-particle imaginary-time Matsubara Green's functions of quantum impurity models in the basis of Legendre orthogonal polynomials. We discuss various applications within the dynamical mean-field theory (DMFT)
A. Erdélyi   +9 more
core   +2 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy