Nambu-Goldstone (NG) modes for 0-form and higher-form symmetries can become unstable in the presence of background fields. Examples include instability a photon with time-dependent axion or chirality imbalance, known as chiral plasma instability, dynamical electric field. We show that all these phenomena be universally described by symmetry algebra symmetries. prove counting rule number NG term...

A new diffusion mechanism from the neighborhood of elliptic equilibria for Hamiltonian flows in three or more degrees freedom is introduced. We thus obtain explicit real entire Hamiltonians on <mml:mrow class="MJX-TeXAto...

background:  due to difficulty in obtaining anatomical reduction, management of the unstable intertrochanteric fractures in elderly osteoporotic patients is challenging. the purpose of this study is to compare the results of hip arthroplasty (total, hemi, or bipolar) with dhs in the elderly patients with unstable intertrochanteric fractures.   methods:  we prospectively studied and followed-up ...

background: immunopathological and inflammatory processes play important roles in the initiation and development of ischemic heart disease (ihd). objective: the aim of this study was to evaluate the serum levels of several autoantibodies including rheumatoid factor (rf), anti-nuclear antibodies (ana), anti-small nuclear ribonucleoprotein (anti-sm), anti-phosphatidylserine (anti-ps) and anti-car...