Results 101 to 110 of about 9,155,379 (405)

Path Integral Approach to Strongly Nonlinear Composite

, 2000
We study strongly nonlinear disordered media using a functional method. We solve exactly the problem of a nonlinear impurity in a linear host and we obtain a Bruggeman-like formula for the effective nonlinear susceptibility.
B. K. Chakrabarti, D. A. G. Bruggeman, D. J. Bergman, D. Stroud, G. A. Niklasson, H.-C. Lee, H.-C. Lee, H.-C. Lee, J. P. Straley, L. Gao, L. Sali, L. Sali, M. Barthélémy, M. Osofsky, Marc Barthélémy, O. Levy, O. Levy, P. M. Hui, P. M. Hui, P. M. Hui, P. M. Hui, P. Ponte Castañeda, P. Ponte Castañeda, P. Ponte Castañeda, P. Ponte Castañeda, R. Blumenfeld, R. Einziger, R. Landauer, R. R. Tremblay, W. M. V. Wan, X. C. Zeng, X. C. Zeng, X. Zhang, Y. Meir, Y.-P. Pellegrini, Y.-P. Pellegrini   +35 more
core   +3 more sources

Modifications in FLAP's second cytosolic loop influence 5‐LOX interaction, inhibitor binding, and leukotriene formation

FEBS Letters, EarlyView.
The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp, Katharina Rataj, Stefanie König, Marcia E. Newcomer, Oliver Werz, Ulrike Garscha   +5 more
wiley   +1 more source

ASCA Measurements of Silicon and Iron Abundances in the Intracluster Medium [PDF]

, 1998
We analyzed the ASCA X-ray data of 40 nearby clusters of galaxies, whose intracluster-medium temperature distributes in the range of 0.9--10 keV. We measured the Si and Fe abundances of the intracluster medium, spatially averaging over each cluster, but excluding the central $\sim 0.15 h_{50}^{-1}$ Mpc region in order to avoid any possible abundance ...
arxiv   +1 more source

Brucella NyxA and NyxB dimerization enhances effector function during infection

FEBS Letters, EarlyView.
Brucella abortus thrives inside cells thanks to the translocation of effector proteins that fine‐tune cellular functions. NyxA and NyxB are two effectors that destabilize the nucleolar localization of their host target, SENP3. We show that the Nyx proteins directly interact with each other and that their dimerization is essential for their function ...
Lison Cancade‐Veyre, Arthur Louche, Francine C. A. Gérard, Laurent Terradot, Suzana P. Salcedo   +4 more
wiley   +1 more source

Sodium chloride vs. sodium bicarbonate for the prevention of contrast medium-induced nephropathy: a randomized controlled trial.

European Heart Journal, 2012
AIMS The most effective regimen for the prevention of contrast-induced nephropathy (CIN) remains uncertain. Our purpose was to compare two regimens of sodium bicarbonate with 24 h sodium chloride 0.9% infusion in the prevention of CIN.
T. Klima, A. Christ, I. Marana, S. Kalbermatter, H. Uthoff, E. Burri, S. Hartwiger, C. Schindler, T. Breidthardt, G. Marenzi, C. Mueller   +10 more
semanticscholar   +1 more source

Light transport in cold atoms: the fate of coherent backscattering in the weak localization regime

, 2003
The recent observation of coherent backscattering (CBS) of light by atoms has emphasized the key role of the velocity spread and of the quantum internal structure of the atoms.
Agranovich, Anderson, B Klappauf, Barabanenkov, Berkovits, Bidel, C.A Müller, Ch Miniatura, D Wilkowski, Dalibard, Datta, Ferry, G Labeyrie, Golubentsev, Heiderich, Ido, Jonckheere, Katori, Kuga, Labeyrie, Labeyrie, Müller, Müller, Philips, R Kaiser, T Chanelière, Van Albada, van Rossum, Walker, Wiersma, Wolf, Y Bidel   +31 more
core   +2 more sources

The carboxylate “gripper” of the substrate is critical for C‐4 stereo‐inversion by UDP‐glucuronic acid 4‐epimerase

FEBS Letters, EarlyView.
UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg, Laura De Cnop, Bernd Nidetzky   +2 more
wiley   +1 more source

The thioredoxin‐like and one glutaredoxin domain are required to rescue the iron‐starvation phenotype of HeLa GLRX3 knock out cells

FEBS Letters, EarlyView.
Glutaredoxin (Grx) 3 proteins contain a thioredoxin domain and one to three class II Grx domains. These proteins play a crucial role in iron homeostasis in eukaryotic cells. In human Grx3, at least one of the two Grx domains, together with the thioredoxin domain, is essential for its function in iron metabolism.
Laura Magdalena Jordt, Manuela Gellert, Finja Zelms, Sander Bekeschus, Christopher Horst Lillig   +4 more
wiley   +1 more source

Efficacy of coronary fractional flow reserve using contrast medium compared to adenosine

Advances in Interventional Cardiology, 2016
Aim: To compare the contrast medium induced Pd/Pa ratio (CMR) with the FFR. Material and methods: We enrolled 28 consecutive patients with 34 intermediate lesions who underwent coronary FFR measurement by intracoronary (i.c.) adenosine.
Selim Topcu, Ibrahim Halil Tanboğa, Enbiya Aksakal, Uğur Aksu, Oktay Gulcu, Oğuzhan Birdal, Arif Arısoy, Arzu Kalaycı, Fatih Rifat Ulusoy, Serdar Sevimli   +9 more
doaj   +1 more source

Localised modes due to defects in high contrast periodic media via two-scale homogenization [PDF]

arXiv, 2018
The spectral problem for an infinite periodic medium perturbed by a compact defect is considered. For a high contrast small $\ve$-size periodicity and a finite size defect we consider the critical $\ve^2$-scaling for the contrast. We employ (high contrast) two-scale homogenization for deriving asymptotically explicit limit equations for the localised ...
arxiv