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991.
A. Wilmer T. D. Frank P. J. Beek R. Friedrich 《The European Physical Journal B - Condensed Matter and Complex Systems》2007,60(2):203-215
In this work a method is developed for analyzing time series of
periodically driven stochastic systems involving time-delayed feedback.
The proposed data-analysis method yields
dynamical models in terms of stochastic delay differential equations. On
the basis of these dynamical models differential effects of driving
forces and time-delayed feedback forces can be identified. 相似文献
992.
Rupert L. Frank Elliott H. Lieb Robert Seiringer 《Communications in Mathematical Physics》2007,275(2):479-489
We give a proof of stability of relativistic matter with magnetic fields all the way up to the critical value of the nuclear
charge Zα = 2/π.
This paper may be reproduced, in its entirety, for non-commercial purposes. 相似文献
993.
The strongly coupled vacua of an supersymmetric gauge theory can be described by imposing quantization conditions on the periods of the gauge theory resolvent, or equivalently by imposing factorization conditions on the associated Seiberg–Witten curve (the so-called strong-coupling approach). We show that these conditions are equivalent to the existence of certain relations in the chiral ring, which themselves follow from the fact that the gauge group has a finite rank. This provides a conceptually very simple explanation of why and how the strongly coupled physics of theories, including fractional instanton effects, chiral symmetry breaking and confinement, can be derived from purely semi-classical calculations involving instantons only. 相似文献
994.
Jean-Marc Jancu Jean-Christophe Harmand Gilles Patriarche Anne Talneau Karine Meunier Frank Glas Paul Voisin 《Comptes Rendus Physique》2007,8(10):1174-1183
A new attempt to solve the phase matching problem for semiconductor-based frequency conversion devices, based on the implementation of intrinsic birefringence in artificial materials, is discussed. The first results concerning the growth and characterization of ultrashort period superlattices are presented. To cite this article: J.-M. Jancu et al., C. R. Physique 8 (2007). 相似文献
995.
Nadia Tagnaouti Sven Loebrich Frank Heisler Yvonne Pechmann Susanne Fehr Adèle De Arcangelis Elisabeth Georges-Labouesse Josephine C Adams Matthias Kneussel 《BMC neuroscience》2007,8(1):28
Background
The kelch repeat protein muskelin mediates cytoskeletal responses to the extracellular matrix protein thrombospondin 1, (TSP1), that is known to promote synaptogenesis in the central nervous system (CNS). Muskelin displays intracellular localization and affects cytoskeletal organization in adherent cells. Muskelin is expressed in adult brain and has been reported to bind the Cdk5 activator p39, which also facilitates the formation of functional synapses. Since little is known about muskelin in neuronal tissues, we here analysed the tissue distribution of muskelin in rodent brain and analysed its subcellular localization using cultured neurons from multiple life stages. 相似文献996.
997.
998.
Philipp Frank 《Transformation Groups》2013,18(3):639-684
We classify those manifolds of positive Euler characteristic on which a Lie group G acts with cohomogeneity one, where G is classical simple. 相似文献
999.
Frank Tappe Christian Schwickert Stefan Linsinger Rainer P?ttgen 《Monatshefte für Chemie / Chemical Monthly》2011,15(2):1087-1095
Abstract
The series of rare earth metal (RE)-rich intermetallics RE 4 TAl and RE 4 TIn (T = Ru, Rh, Ir) were synthesized by induction melting of the elements in sealed tantalum tubes. These compounds crystallize with the cubic Gd4RhIn-type structure, space group F[`4]3mF\bar{4}3m. The structures of eight crystals (including the isotypic compounds Ce4RuMg and Ce4RuCd) have been refined from X-ray single-crystal diffractometer data. The structures are composed of condensed RE 6 T trigonal prisms which form a rigid network with adamantane-like topology. Large cavities within these networks are filled with empty RE 6 octahedra and Al4, In4, Mg4, or Cd4 tetrahedra, respectively. Some of the RE 4 TAl and RE 4 TIn show small homogeneity ranges that result from small degrees of Al/T and In/T mixing on the 16e sites. All cerium compounds show small anomalies in the plots of the cell volumes. This is confirmed by temperature-dependent magnetic susceptibility measurements. Ce4RuMg, Ce4RuCd, Ce4RuAl, and Ce4RuIn show intermediate cerium valence and no magnetic ordering down to 3 K. Ce4RhAl shows essentially trivalent cerium. 相似文献1000.