BACKGROUND Cardiac iron toxicity is the leading cause of death among β-halassaemia major (TM) patients. Once heart failure becomes overt, it is difficult to reverse. OBJECTIVES To investigate non-overt cardiac dysfunctions in TM patients using pulsed wave Tissue Doppler Imaging (TD I) and its relation to iron overload and brain natriuretic peptide (BNP). METHODS Thorough clinical, conventio...

Gaseous Plasma Antennas are devices in which an ionized gas (i.e., plasma) is exploited to transmit and receive Electro-Magnetic waves. Their main advantage over metallic systems the possibility reconfigure antenna performance (e.g., radiation pattern) by electronically varying plasma parameters density). Recently, Intelligent Reflecting Surfaces (IRSs) have been proposed control environment be...

Recently, Suk, Barov, and Rosenzweig [Phys. Rev. Lett. 86, 1011 (2001)] proposed a scheme for trapping background electrons in a plasma wake field using a sudden downward transition in the background ion density, where the density transition length is small compared to the plasma skin depth. In the present paper we present a fluid dynamical description of this mechanism that is self-consistent ...

The dynamics of relativistically strong electromagnetic (EM) wave propagation in hot electron-positron plasma is investigated. The possibility of finding localized stationary structures of EM waves is explored. It is shown that under certain conditions the EM wave forms a stable localized soliton-like structures where plasma is completely expelled from the region of EM field location.

It is demonstrated that a frequency selective Alfvén-wave resonator can be realized by applying a nonuniform magnetic field to a plasma region bounded between a cathode and a semitransparent mesh anode. When a current threshold is exceeded, selective amplification results in a highly coherent, large amplitude wave that propagates into an adjacent plasma column.

Plasma shock waves widely exist and play an important role in high-energy-density environment, especially the inertial confinement fusion. Due to large gradient of macroscopic physical quantities coupled thermal, electrical, magnetic, optical phenomena, there not only hydrodynamic non-equilibrium (HNE) effects but also strong thermodynamic (TNE) around wavefront. In this work, a two-dimensional...