Results 41 to 50 of about 484,486 (336)
Dynamical cartography of Earth satellite orbits [PDF]
Advances in Space Research, 2019 25 pages, 10 ...
Despoina K. Skoulidou +4 more
openaire +3 more sources
Strong variation of spin-orbit torques with relative spin relaxation rates in ferrimagnets
Nature Communications, 2023 There has been a lot of interest in using antiferromagnets for magnetic memories, due to their fast dynamics, and resilience to stray fields. Such a memory was supposed to be switched by a spin-orbit torque. Here, Zhu and Ralph find that as a ferrimagnet
Lijun Zhu, Daniel C. Ralph
doaj +1 more source
Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia
FEBS Letters, EarlyView.This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley +1 more source
On the Hofer-Zehnder conjecture for non-contractible periodic orbits in Hamiltonian dynamics [PDF]
arXiv, 2021 In this paper, we treat an open problem related to the number of periodic orbits of Hamiltonian diffeomorphisms on closed symplectic manifolds. Hofer-Zehnder conjecture states that a Hamiltonian diffeomorphisms has infinitely many periodic orbits if it has "homologically unnecessary periodic orbits"".
arxiv
Orbital dynamics of the solar basin
Journal of High Energy PhysicsAbstract We study the dynamics of the solar basin — the accumulated population of weakly-interacting particles on bound orbits in the Solar System. We focus on particles starting off on Sun-crossing orbits, corresponding to initial conditions of production inside the Sun, and investigate their evolution over the age of the Solar ...
Cara Giovanetti +2 more
openaire +3 more sources
Orbital Dynamics of Cygnus X‐3 [PDF]
The Astrophysical Journal, 2000 Orbital-phased-resolved infrared spectra of Cygnus X-3 in outburst and quiescence, including tomographic analysis, are presented. We confirm the phasing of broad HeII and NV lines in quiescence, such that maximum blue shift corresponds to the X-ray minimum at phase = 0.00 +/- 0.04.
Margaret M. Hanson +3 more
openaire +5 more sources
Making tau amyloid models in vitro: a crucial and underestimated challenge
FEBS Letters, EarlyView.This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley +1 more source
Symbolic Dynamics and Periodic Orbits for the Cardioid Billiard [PDF]
J Phys. A 30, 1991-2020 (1997), 1995 The periodic orbits of the strongly chaotic cardioid billiard are studied by introducing a binary symbolic dynamics. The corresponding partition is mapped to a topological well-ordered symbol plane. In the symbol plane the pruning front is obtained from orbits running either into or through the cusp.
arxiv +1 more source
Spin-orbit force contribution to dissipative dynamics
EPJ Web of Conferences, 2012 UA procedure of obtaining nucleus-nucleus potentials from time-dependent density functional calculations is presented. The role of the spin-orbit force in heavy-ion collision dynamics is studied with respect to the nucleus-nucleus potential. Consequently
Iwata Yoritaka
doaj +1 more source
Cometary Orbital Dynamics and Astrometry [PDF]
International Astronomical Union Colloquium, 1989 AbstractComets are the only large solar system bodies where nongravitational forces directly affect their dynamic motions. Their approach to within a few AU of the Sun initiates the vaporization of nucleus ices, and the resulting rocket-like effects either add to or subtract from the comet’s orbital energy; the sign of the energy change depends upon ...
openaire +2 more sources