In this paper, we investigate the impact of rate and power adaptation (RPA) and rate adaptation (RA) using square M-ary quadrature amplitude modulation (MQAM) on the average spectral efficiency (ASE) of orthogonal frequency division multiplexing (OFDM) systems under instantaneous bit-error-rate (BER) constraint over high mobility Nakagami multipath

Percutaneous replacement Cough Relief of the tricuspid valve with a bovine jugular venous valve (melody valve) was successfully undertaken in a 9-year-old boy.The patient had a previous history of bacterial endocarditis of the native tricuspid valve in infancy.Initially, a pericardial patch valve was created, followed by surgical replacement of the

Vitamins Chrysomyxa rusts are fungal pathogens widely distributed in the Northern hemisphere, causing spruce needle and cone rust diseases, and they are responsible for significant economic losses in China.Taxonomic delimitation and precise species identification are difficult within this genus because some characters often overlap in several speci