The design of acoustic signals and hearing sensitivity in socially communicating species would normally be expected to closely match in order to minimize signal degradation and attenuation during signal propagation. Nevertheless, other factors such as sensory biases as well as morphological and physiological constraints may affect strict correspondence between signal features and hearing sensit...

background and objective: according to the fact that neonatal infection is a challenging diagnosis field, several studies have tried to test sensitivity and specificity of diagnostic tests. this study was conducted to evaluate the sensitivity and specificity of procalcitonin (pct) as a single early marker of neonatal sepsis. materials and methods: in this study, 150 neonates admitted to nicu an...

background: classical bacteriological detection of brucella species from food, and environment is routinely carried out based on morphological and biochemical characteristics. however, for increasing specificity and sensitivity of species identification methods, development of a molecular assay is necessary that was main aim of this study. methods: panel of some reference strains belonging to t...

Signal optimization is affected during radio links between a transmitter and a receiver located in adjacent material media with differing optical densities. The optimization is carried out via the automated control theory method. The radio signal obtained after the optimization is coordinated with the two media's electrical characteristics simultaneously; and this enables low power and small an...

This study investigates how children’s sensitivity to prosodic characteristics in speech is related to their processing of musical melody and rhythm, and how these are related to phonological awareness (PA), in a sample of 23 5-year-old pre-readers. Measures included non-word prosodic imitation, melody and rhythm discrimination, a battery of phonological awareness tasks, and general expressive ...