Results 71 to 80 of about 1,787,213 (363)
Automorphisms of Real 4 Dimensional Lie Algebras and the Invariant Characterization of Homogeneous 4-Spaces [PDF]
, 2002 The automorphisms of all 4-dimensional, real Lie Algebras are presented in a comprehensive way. Their action on the space of $4\times 4$, real, symmetric and positive definite, matrices, defines equivalence classes which are used for the invariant ...
A Dimakis +17 more
core +1 more source
Network topology drives population temporal variability in experimental habitat networks
Population Ecology, EarlyView.Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu +3 more
wiley +1 more source
Natural Qubit Matrix of Primary Elements of Matter
MATEC Web of Conferences, 2018 The arithmetic limits of natural bit calculations are strictly established. The natural quantum metric system has been developed. Only seven scaling units that generate thirteen invariant values are necessary and sufficient for an accurate estimation and
Machusky Eugene
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A unified approach to exact solutions of time-dependent Lie-algebraic quantum systems
, 2003 By using the Lewis-Riesenfeld theory and the invariant-related unitary transformation formulation, the exact solutions of the {\it time-dependent} Schr\"{o}dinger equations which govern the various Lie-algebraic quantum systems in atomic physics, quantum
Chen, Pan, Shen, Jian Qi, Zhu, Hong Yi
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Simultaneity as an Invariant Equivalence Relation [PDF]
, 2012 This paper deals with the concept of simultaneity in classical and relativistic physics as construed in terms of group-invariant equivalence relations.
A. Einstein +13 more
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FEBS Letters, EarlyView.In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley +1 more source
Takagi Topological Insulator on the Honeycomb Lattice
Frontiers in Physics, 2022 Recently, real topological phases protected by PT symmetry have been actively investigated. In two dimensions, the corresponding topological invariant is the Stiefel-Whitney number.
Qing Liu +4 more
doaj +1 more source
General coordinate invariance and conformal invariance in nonrelativistic physics: Unitary Fermi gas [PDF]
Annals of Physics, 2006 We show that the Lagrangian for interacting nonrelativistic particles can be coupled to an external gauge field and metric tensor in a way that exhibits a nonrelativistic version of general coordinate invariance. We explore the consequences of this invariance on the example of the degenerate Fermi gas at infinite scattering length, where conformal ...
Dam Thanh Son, Matthew Wingate
openaire +3 more sources
FEBS Letters, EarlyView.B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro +2 more
wiley +1 more source
Symmetries and invariants of the oscillator and envelope equations with time-dependent frequency
Physical Review Special Topics. Accelerators and Beams, 2006 The single-particle dynamics in a time-dependent focusing field is examined. The existence of the Courant-Snyder invariant, a fundamental concept in accelerator physics, is fundamentally a result of the corresponding symmetry admitted by the harmonic ...
Hong Qin, Ronald C. Davidson
doaj +1 more source