background: delayed or missed diagnosis of critical and cyanotic congenital heart disease (chd) in asymptomatic newborns may result in significant morbidity and mortality. the aim of this study was to determine the accuracy of pulse oximetry screening  performed on the first day of life for the early detection of critical and cyanotic chd in apparently normal newborns. methods: this cross-secti...

The current work is aimed to fabricate a pulse generator to meet the requirements of control and process signals to be applied on to several basic constituting functional units of a radar system. The functional units of Radar system includes Exciter, Receiver, Radar Controller, TCSG and Duplexer Antenna.The synchronized pulses generated are operate on functional units is accomplished by generat...

Nucleation from a boundary is experimentally and numerically studied in a one-dimensional array in two excitable media consisting of Chua's circuits and the Oregonator model, respectively. Forcing from a boundary with a pulse of constant amplitude and infinite duration gives rise to a periodic wave train propagating through the array. As the amplitude of the pulse increases, wave period evolves...

Based on the free precession model of the isolated pulsar PSR B1828-11, Link & Epstein (2001) showed that the observed pulse durations require the radio beam to have a non-standard shape: the beam duration is larger for beam sweeps farthest from the dipole axis. In their analysis they assumed that the actual precession period is ≃ 500 d. Recent theoretical studies suggested that the actual prec...

We present a combined theoretical and experimental study of ultrafast wave-packet dynamics in the dissociative ionization of H_{2} molecules as a result of irradiation with an extreme-ultraviolet (XUV) pulse followed by an infrared (IR) pulse. In experiments where the duration of both the XUV and IR pulses are shorter than the vibrational period of H_{2};{+}, dephasing and rephasing of the vibr...