Results 141 to 150 of about 1,787,213 (363)
A Novel Orbit Parameterization in Spherical Coordinates
The Planetary Science JournalWe present a novel orbit parameterization in spherical coordinates. This parameterization enables the mixing of varying and invariant orbital parameters, and clarifies the physics of the orbit.
Kevin J. Napier, Matthew J. Holman
doaj +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective The cervical spinal cord (cSC) is highly relevant to clinical dysfunction in multiple sclerosis (MS) but remains understudied using quantitative magnetic resonance imaging (MRI). We assessed magnetization transfer ratio (MTR), a semi‐quantitative MRI measure sensitive to MS‐related tissue microstructural changes, in the cSC and its ...
Lisa Eunyoung Lee +26 more
wiley +1 more source
More on complexity of operators in quantum field theory
, 2019 Recently it has been shown that the complexity of SU($n$) operator is determined by the geodesic length in a bi-invariant Finsler geometry, which is constrained by some symmetries of quantum field theory.
An, Yu-Sen +4 more
core +1 more source
NEUTRINO PHYSICS AND LEPTONIC WEAK BASIS INVARIANTS [PDF]
Particle Physics at the Silver Jubilee of Lomonosov Conferences, 2019 In this talk we present a powerful tool applied to the study of Leptonic Physics. This tool is based on the construction of Weak Basis invariant relations associated to different properties of leptonic models. The rationale behind these constructions is the fact that fermion mass matrices related through weak basis transformations look different but ...
openaire +3 more sources
Arthritis Care &Research, EarlyView.Objective This study analyzed longitudinal trajectories of soluble Flt1 (sFlt1) levels, placenta growth factor (PlGF) levels, and sFlt1:PlGF ratios in a cohort of pregnant patients with systemic lupus erythematosus (SLE). Methods Blood samples were collected (14–18, 24–26, 30–32, 34–36, and 38–40 weeks), stored at −80°C, and evaluated for serum levels ...
Nilson R. de Jesús +7 more
wiley +1 more source
Spacetime colour reconnection in Herwig 7
European Physical Journal C: Particles and Fields, 2019 We present a model for generating spacetime coordinates in the Monte Carlo event generator Herwig 7, and perform colour reconnection by minimizing a boost-invariant distance measure of the system.
Johannes Bellm +4 more
doaj +1 more source
Arthritis Care &Research, EarlyView.Objective Our objective was to examine the relationship between colchicine plasma concentrations and clinical and demographic factors and to determine the relationship between colchicine concentrations and colchicine efficacy and colchicine‐specific adverse events.
Lisa K. Stamp +8 more
wiley +1 more source
Arthritis Care &Research, EarlyView.Objective This study investigated whether sleep disturbance can predict the extent to which pain interferes with daily functioning in patients with early rheumatoid arthritis (RA). Methods Data were from adults with early RA (joint symptoms ≤12 months) enrolled in the Canadian Early Arthritis Cohort between 2016 and 2023.
Burcu Aydemir +16 more
wiley +1 more source
Ehrenfest theorem, Galilean invariance and nonlinear Schr\"odinger equations
, 2003 Galilean invariant Schr\"odinger equations possessing nonlinear terms coupling the amplitude and the phase of the wave function can violate the Ehrenfest theorem. An example of this kind is provided.
Dalfovo F +5 more
core +1 more source