BACKGROUND Case cancellation can be very distressing not only to the patient and relatives but also to health care professionals. OBJECTIVES This study aims at detecting the causes of case cancellations on the intended day of surgery (DOS) at a tertiary hospital in Enugu that handles both elective and emergency cases. METHODS The data was extracted retrospectively from the anesthetists' dai...

− In this paper, performance of OFDM digital communication systems have been analyzed with improved ICI cancellation technique. The bit error rate has been regarded as a fundamental information theoretic measure of a communication system. A novel parallel ICI cancellation technique has been proposed for mitigating frequency offset of OFDM digital communication systems. The simulated results of ...

This paper presents a new ultra-wideband LNA which employs the complementary derivative superposition method in noise cancellation structure. A pMOS transistor in weak inversion region is employed for simultaneous second- and third-order distortion cancellation. Source-degeneration technique and two shunt inductors are added to improve the performance at high frequencies. The degeneration induc...