User profiles for S. Aubry

Sylvie Aubry

Research Staff, Lawrence Livermore National Laboratory
Verified email at llnl.gov
Cited by 2016

Breathers in nonlinear lattices: Existence, linear stability and quantization

S Aubry - Physica D: Nonlinear Phenomena, 1997 - Elsevier
It has been proved by the principle of anti-integrable limit (renamed here anti-continuous limit)
and the implicit function theorem that, under rather weak hypotheses, there exist spatially …

The twist map, the extended Frenkel-Kontorova model and the devil's staircase

S Aubry - Physica D: Nonlinear Phenomena, 1983 - Elsevier
… There generally exist s minima (modula 2a) (r and s are irreducible integers) because of
the invariance of the energy per unit cell under the s cyclic permutations {u,}---,{u,+p}p = 1, 2,..s. …

Discrete breathers: localization and transfer of energy in discrete Hamiltonian nonlinear systems

S Aubry - Physica D: Nonlinear Phenomena, 2006 - Elsevier
… A DB solution in that formulation corresponds to a trajectory of this map S which is … of the
fixed point which is invariant by the map S . Thus the problem becomes to find a homoclinic …

Viscoelasticity in Achilles tendonopathy: quantitative assessment by using real-time shear-wave elastography

S Aubry, JP Nueffer, M Tanter, F Becce, C Vidal… - Radiology, 2015 - pubs.rsna.org
… Either there were no subclinical changes of the viscoelastic properties of AT s with
tendonopathy compared with contralateral AT s, or we failed to detect possible subclinical …

Pheophytin Pheophorbide Hydrolase (Pheophytinase) Is Involved in Chlorophyll Breakdown during Leaf Senescence in Arabidopsis

S Schelbert, S Aubry, B Burla, B Agne, F Kessler… - The Plant …, 2009 - academic.oup.com
… In addition, we performed import experiments of [ 35 S]-labeled PPH into isolated Arabidopsis
mesophyll chloroplasts, followed by chloroplast reisolation and subfractionation (Figure 5B…

The role of proteins in C3 plants prior to their recruitment into the C4 pathway

S Aubry, NJ Brown, JM Hibberd - Journal of experimental botany, 2011 - academic.oup.com
Our most productive crops and native vegetation use a modified version of photosynthesis
known as the C 4 pathway. Leaves of C 4 crops have increased nitrogen and water use …

Proof of existence of breathers for time-reversible or Hamiltonian networks of weakly coupled oscillators

RS MacKay, S Aubry - Nonlinearity, 1994 - iopscience.iop.org
Existence of'breathers', that is, time-periodic, spatially localized solutions, is proved for a
broad range of time-reversible or Hamiltonian networks of weakly coupled oscillators. Some of …

The discrete Frenkel-Kontorova model and its extensions: I. Exact results for the ground-states

S Aubry, PY Le Daeron - Physica D: Nonlinear Phenomena, 1983 - Elsevier
… (l/a = r/s with r and s two irreducible integers) the phase 0t … a/s] with length a/s in order that
each value of nl + ~t = nra/s + … k and n = rk + s (r is the quotient and 0 < s ~< k the remainder …

[PDF][PDF] Embryonic death of Mek1-deficient mice reveals a role for this kinase in angiogenesis in the labyrinthine region of the placenta

…, JF Cardin-Girard, S Aubry, L Larouche, S Rousseau… - Current Biology, 1999 - cell.com
Mek is a dual-specificity kinase that activates the extracellular-signal-regulated (Erk)
mitogen-activated protein (MAP) kinases upon agonist binding to receptors. The Erk MAP kinase …

Acute pulmonary embolism associated with COVID-19 pneumonia detected with pulmonary CT angiography

F Grillet, J Behr, P Calame, S Aubry, E Delabrousse - Radiology, 2020 - pubs.rsna.org
… Xie Y, Wang X, Yang P, Zhang S. COVID-19 Complicated by Acute Pulmonary Embolism.
Radiol Cardiothorac Imaging 2020;2(2):e200067. … Simpson S, Kay FU, Abbara S, et al …