Mohamed Adel

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We present and evaluate an algorithm that performs in-call selection of the most appropriate audio codec given prevailing conditions on the network path between the end-points of a voice call. We have studied the behaviour of different codecs under varying network conditions, in doing so deriving the impairment factors for non-ITU-T codecs so that the(More)
BACKGROUND Conducting high throughput -omics research requires high quality, data-rich biospecimens to unravel factors underlying childhood cancers; this is an extra burden in a limited resources country. For this purpose, Children's Cancer Hospital (CCHE), the largest pediatric cancer hospital worldwide, established a cutting-edge Biorepository and(More)
A common disorder of human dentition is the existence of supernumerary teeth. Impacted supernumerary teeth occur most frequently in the maxillary incisor area and are termed mesiodens. We conducted whole-exome sequencing of non-syndromic Japanese individuals possessing supernumerary teeth to identify genes and/or loci involved in the pathogenesis of the(More)
Hepatitis C virus inhibitors based on benzoxazole scaffold were designed based on molecular modeling simulation study including docking into the NS5B polymerase active site. Several compounds showed significant high simulation docking scores relative to the assigned benzimidazole lead compound. The designed compounds were synthesized, structurally elucidated(More)
OBJECTIVE To compare the rates of catheter-associated bloodstream infection (CABSI) in preterm infants born at <30 weeks' gestation who received a peripherally inserted central catheter (PICC) versus an umbilical venous catheter (UVC) immediately after birth as their primary venous access. METHODS This retrospective matched cohort study examined data from(More)
Maintaining good Quality-of-Experience (QoE) is crucial for Voice-over-IP (VoIP) applications, particularly those operating across the public Internet. Accurate online estimation of QoE as perceived by end users allows VoIP applications take steps to improve QoE when it falls below acceptable levels. ITU-T recommendation G.107 introduced the E-model, which(More)
This dissertation addresses real-time communications using Voice-Over-IP (VoIP) technology, which is nowadays widely used by enterprises and individual users. The focus is on the assessment of the Quality-of-Experience (QoE) from the end-user’s perspective and the development of algorithms and techniques to improve the overall QoE. One of the main(More)
OBJECTIVE To examine the relationship between three-dimensional mandibular morphology and growth hormone receptor (GHR) gene variants in a healthy Japanese population. MATERIALS AND METHODS The subjects, who were unrelated Japanese orthodontic patients, consisted of 64 men and 114 women. Using the Taqman genotyping assay, GHR gene rs6184 and rs6180(More)
Williams-Beuren syndrome (WBS) is a rare multisystem disorder caused by a hemizygous deletion of the elastin gene on chromosome 7q11.23. WBS patients have characteristic skeletal features and dental anomalies accompanied by mental retardation, a friendly outgoing personality, and mild to moderate intellectual disability or learning problems. In this case(More)