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Asymptotically accurate approximations for quantizer performance were developed by Gish and Pierce. Variational techniques were used to obtain asymptotically optimal performance. In this correspondence, optimal performance is demonstrated simply without variational techniques using Holder’s and Jensen’s inequalities.
Heterogeneity of the hepatitis B virus (HBV) core gene has been reported to be associated with the presence of active liver disease in Japanese patients with chronic HBV infection. This study evaluated the significance of HBV core gene heterogeneity in Western patients with chronic HBV infection. The hepatitis B virus precore/core gene from 45 patients… (More)
point signal frames and model spectra. For display purposes the gain factor u, relation (3), is determined so that the energy of the model spectrum is equal to that of the signal spectrum. Fig. 6 represents the DFT of the Hamming windowed original speech signal frame and the model spectrum obtained by applying the ITIF algorithm on the original, not… (More)
This report documents the clinicopathological features in two Jamaican children who presented with infective dermatitis, glomerulonephritis, renal failure and human T-cell lymphotropic virus (HTLV-1) seropositivity. Severe hypertension with hypertensive encephalopathy was the most impressive clinical feature. Histological findings from renal biopsy… (More)