Results 51 to 60 of about 1,033,272 (329)

Optical and dc conductivities of cuprates: Spin-fluctuation scattering in the t-J model

, 2012
A microscopic theory of the electrical conductivity $\sigma(\omega)$ within the t-J model is developed. An exact representation for $\sigma(\omega)$ is obtained using the memory-function technique for the relaxation function in terms of the Hubbard ...
A. A. Vladimirov, A. V. Chubukov, D. Ihle, N. M. Plakida, N. M. Plakida, N. M. Plakida, Ph. Bourges, T. Timusk, Y. Iye, Yu. A. Izyumov   +9 more
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Relaxation and convexity of functionals with pointwise nonlocality [PDF]

Proceedings of the American Mathematical Society, 2001
Summary: It is shown that the relaxation of the integral functional involving argument deviations \[ I(u):=\int_\Omega f(x,\{u_i(g_{ij}(x))\}_{i,j=1}^{k,l}) d\mu_\Omega(x), \] in weak topology of a Lebesgue space \((L^p(\Theta,\mu_\Theta))^k\) (where \((\Omega,\Sigma(\Omega),\mu_\Omega)\) and \((\Theta,\Sigma(\Theta),\mu_\Theta)\) are standard measure ...
openaire   +4 more sources

Electronic Raman response in anisotropic metals

, 2004
Using a generalized response theory we derive the electronic Raman response function for metals with anisotropic relaxation rates. The calculations account for the long--range Coulomb interaction and treat the collision operator within a charge ...
A. Zawadowski, D. Manske, Dietrich Einzel, Dirk Manske, T. P. Devereaux, T. P. Devereaux, T. Strohm   +6 more
core   +1 more source

Aging under Shear: Structural Relaxation of a Non-Newtonian Fluid [PDF]

, 2004
The influence of an applied shear field on the dynamics of an aging colloidal suspension has been investigated by the dynamic light scattering determination of the density autocorrelation function.
Di Leonardo, R., Ianni, F., Ruocco, G.
core   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

FEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer, Matheus Felipe Santos, Maurício Mazzine Filho, Gabriela Oliveira Castro, Agustín Hernández, Manoel Aparecido Peres, Alejandro Miguel Katzin, Marcell Crispim   +7 more
wiley   +1 more source

Exponential decay of solutions to a fourth-order viscoelastic evolution equation in R^n

Electronic Journal of Differential Equations, 2010
In this article, we consider a Cauchy problem for a viscoelastic wave equation of fourth order. Under suitable conditions on the initial data and the relaxation function, we show that the rate of decay is exponential.
Mohammad Kafini
doaj  

On the Williams—Watts function of dielectric relaxation [PDF]

Proceedings of the National Academy of Sciences, 1984
It has been observed over the past 15 years that experimental frequency-dependent dielectric constants of broad classes of materials including polymeric systems and glasses may be interpreted in terms of the Williams-Watts polarization decay function [Formula: see text] The exponent α and the time constant T depend ...
Michael F. Shlesinger, Elliott W. Montroll   +1 more
openaire   +3 more sources

Spin relaxation of conduction electrons in bulk III-V semiconductors

, 2001
Spin relaxation time of conduction electrons through the Elliot-Yafet, D'yakonov-Perel and Bir-Aronov-Pikus mechanisms is calculated theoretically for bulk GaAs, GaSb, InAs and InSb of both $n$- and $p$-type.
A. G. Aronov, A. H. Clark, A. H. Clark, A. Malinowski, D. D. Sell, D. DiVincenzo, D. L. Rode, D. L. Rode, E. Haga, G. Fishman, G. L. Bir, G. Prinz, H. Brooks, H. Ehrenreich, H. Ehrenreich, H. Ehrenreich, H. J. G. Meijer, J. Bardeen, J. D. Zook, J. M. Kikkawa, J. N. Chazalviel, J. T. Hyland, K. C. Hall, K. W. Kim, K. Zerrouati, L. Sham, M. I. D’yakonov, M. I. D’yakonov, M. Z. Maialle, M. Z. Maialle, M. Z. Maialle, P. P. Edwards, Pil Hun Song, R. I. Dzhioev, R. J. Elliot, T. F. Boggess, V. I. Maruschak, W. H. Lau, Y. Ohno   +38 more
core   +3 more sources

Photosynthesis under far‐red light—evolutionary adaptations and bioengineering of light‐harvesting complexes

FEBS Letters, EarlyView.
Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii, Edoardo Andrea Cutolo, Daniele Montepietra, Claudia Battarra, Roberto Caferri, Stefano Capaldi, Zeno Guardini, Luca Dall'Osto, Roberto Bassi   +8 more
wiley   +1 more source