Results 61 to 70 of about 1,506,135 (383)

Reversible Relative Periodic Orbits

Journal of Differential Equations, 2002
The aim of this paper is to extend recently obtained results [\textit{B. Sandstede}, \textit{A. Scheel} and \textit{C. Wulff}, J. Nonlinear Sci. 9, 349--378 (1999; Zbl 0951.35014); \textit{C. Wulff}, \textit{J. S. W. Lamb} and \textit{I. Melbourne}, Ergodic Theory Dyn. Syst.
Lamb, JSW, Wulff, C
openaire   +4 more sources

The role of fibroblast growth factors in cell and cancer metabolism

FEBS Letters, EarlyView.
Fibroblast growth factor (FGF) signaling regulates crucial signaling cascades that promote cell proliferation, survival, and metabolism. Therefore, FGFs and their receptors are often dysregulated in human diseases, including cancer, to sustain proliferation and rewire metabolism.
Jessica Price, Chiara Francavilla
wiley   +1 more source

Periodic magnetoconductance fluctuations in triangular quantum dots in the absence of selective probing

, 1998
We have studied the magnetoconductance of quantum dots with triangular symmetry and areas down to 0.2 square microns, made in a high mobility two-dimensional electron gas embedded in a GaAs-AlGaAs heterostructure.
A. Kristensen, A. M. Chang, B. J. van Wees, C. M. Marcus, C. M. Marcus, C. M. Marcus, C. W. J. Beenakker, H. Bruus, H. Bruus, H. U. Baranger, H. van Houten, I. A. Larkin, I. V. Zozoulenko, J. Blaschke, J. P. Bird, J. P. Bird, J. P. Bird, K. F. Berggren, L. Christensson, M. Brack, M. Brack, M. Brack, M. Büttiker, M. C. Gutzwiller, M. J. Berry, M. Persson, M. Stopa, O. Bohigas, P. Bøggild, P. Bøggild, P. E. Lindelof, R. Akis, S. M. Reimann, S. M. Reimann   +33 more
core   +1 more source

The zinc finger domains of PARP‐1 are selectively and potently inhibited by the Au(I)‐based drugs sodium aurothiomalate and aurothioglucose

FEBS Letters, EarlyView.
PARP‐1 is a key enzyme in the DNA damage response, and its inhibition induces cancer cell death via synthetic lethality. Au(I)‐based drugs, such as aurothioglucose and sodium aurothiomalate, block PARP‐1's DNA‐dependent activity by targeting its zinc finger domains.
Uliana Bashtanova, Melinda Jane Duer
wiley   +1 more source

Bifurcation of Nongeneric Homoclinic Orbit Accompanied by Pitchfork Bifurcation

Abstract and Applied Analysis, 2014
The bifurcation of a nongeneric homoclinic orbit (i.e., the orbit comes from the equilibrium along the unstable manifold instead of the center manifold) connecting a nonhyperbolic equilibrium is investigated, and the nonhyperbolic equilibrium undergoes ...
Fengjie Geng, Song Li
doaj   +1 more source

Monotone periodic orbits for torus homeomorphisms [PDF]

, 2005
Let f be a homeomorphism of the torus isotopic to the identity and suppose that there exists a periodic orbit with a non-zero rotation vector (p/q,r/q), then f has a topologically monotone periodic orbit with the same rotation vector.Comment: 10 pages, 1
Parwani, Kamlesh
core   +2 more sources

Periodic Orbit Quantization beyond Semiclassics

, 1995
A quantum generalization of the semiclassical theory of Gutzwiller is given. The new formulation leads to systematic orbit-by-orbit inclusion of higher $\hbar$ contributions to the spectral determinant.
A. Voros, A. Wirzba, D. Alonso, D. Ruelle, Gábor Vattay, L. S. Schulman, M. C. Gutzwiller, M. Roncadelli, M. Roncadelli, M. V. Berry, M. V. Berry, N. D. Whelan, P. Cvitanović, P. Gaspard, P. Gaspard, Per E. Rosenqvist, R. B. Balian, R. Balian, R. P. Feynman, V. M. Babić, V. P. Maslov   +20 more
core   +2 more sources

Bursts in the Chaotic Trajectory Lifetimes Preceding the Controlled Periodic Motion [PDF]

, 2000
The average lifetime ($\tau(H)$) it takes for a randomly started trajectory to land in a small region ($H$) on a chaotic attractor is studied. $\tau(H)$ is an important issue for controlling chaos.
C. Grebogi, C. Grebogi, D. Auerbach, E. Bollt, E. Ott, E. Ott, G. Pianigiani, G. Pianigiani, H. Buljan, J. Jacobs, J. Singer, J.P. Eckmann, K. Zyczkowski, M. Hénon, P. Cvitanović, P. Szepfalusy, T. Shinbrot, T. Shinbrot, T. Shinbrot, T. Shinbrot, T. Tel, U. Dressler, V. Paar, V. Paar, V. Paar, W.L. Ditto   +25 more
core   +5 more sources

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS 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

Existence and Stability of Symmetric Periodic Simultaneous Binary Collision Orbits in the Planar Pairwise Symmetric Four-Body Problem

, 2011
We extend our previous analytic existence of a symmetric periodic simultaneous binary collision orbit in a regularized fully symmetric equal mass four-body problem to the analytic existence of a symmetric periodic simultaneous binary collision orbit in a
A. Chenciner, A. Sivasankaran, A. Venturelli, C. Moore, C. Simó, Duokui Yan, G. Contopoulos, G.E. Roberts, G.E. Roberts, J. Hietarinta, J. Schubart, K.R. Meyer, K.R. Meyer, L.F. Bakker, Lennard F. Bakker, M. Hénon, M. Sekiguchi, M.M. Saito, M.M. Saito, M.M. Saito, R. Martinez, R. Moeckel, S.J. Aarseth, Skyler Simmons, T. Ouyang, T. Ouyang, Tiancheng Ouyang, W.L. Sweatman, W.L. Sweatman, X. Hu, X. Hu   +30 more
core   +1 more source