A5010469343- Advanced MIMO Systems Optimization
- Millimeter-Wave Propagation and Modeling
- Liver Disease Diagnosis and Treatment
- Precipitation Measurement and Analysis
- Radio Wave Propagation Studies
- SARS-CoV-2 and COVID-19 Research
- Cooperative Communication and Network Coding
- Liver Disease and Transplantation
- Organ Transplantation Techniques and Outcomes
- Gastrointestinal disorders and treatments
- Long-Term Effects of COVID-19
- COVID-19 Clinical Research Studies
- SARS-CoV-2 detection and testing
- Advanced Optical Network Technologies
- Electric Vehicles and Infrastructure
- Esophageal and GI Pathology
- Mechanical Failure Analysis and Simulation
- Advanced Wireless Communication Techniques
- Pneumonia and Respiratory Infections
- Gastrointestinal Bleeding Diagnosis and Treatment
- COVID-19 and healthcare impacts
- Electric Power System Optimization
- Satellite Communication Systems
- Gastrointestinal Tumor Research and Treatment
- Gastric Cancer Management and Outcomes
Al-Azhar University
2024-2025
École de Technologie Supérieure
2020-2024
Carleton University
2023
Zagazig University
2016-2022
Université du Québec à Montréal
2020-2021
King Fahd University of Petroleum and Minerals
2020
Cairo University
1984-2017
Abstract Background Coronavirus disease 2019 (COVID-19) was announced in early December 2019. The pandemic situation is declared. This study aimed to evaluate the role of biomarkers estimating severity and predicting prognosis COVID-19. Results A total 116 confirmed patients were included this study. evaluated clinically. assessed. measured calculated laboratory tests done. primary outcome 30-day mortality. Patients assigned severe (14.7%) non-severe (85.3%) groups. At IL-6 level 32.3 pg/mL...
Vehicle-to-Everything (V2X) communication promises to revolutionize road safety and efficiency. However, challenges in data sharing network reliability impede its full realization. This paper addresses these by proposing a novel Deep Learning (DL) approach for traffic prediction V2X environments. We employ Bidirectional Long Short-Term Memory (BiLSTM) networks compare their performance against other prominent DL architectures, including unidirectional LSTM Gated Recurrent Unit (GRU). Our...
Egypt was among the first 10 countries in Africa that experienced COVID-19 cases. The sudden surge number of cases is overwhelming capacity national healthcare system, particularly developing countries. Central to containment ongoing pandemic availability rapid and accurate diagnostic tests could pinpoint patients at early disease stages. In current study, we aimed (1) Evaluate performance antigen test (RAT) "Standard™ Q Ag" against reverse transcriptase quantitative real-time PCR (RT-qPCR)...
Many cases of gastrointestinal (GI) tumors as lymphoma, adenocarcinoma, and most submucosal (SMT) such stromal tumor (GIST) leiomyoma are difficult to diagnose they frequently yield negative endoscopic biopsies. We evaluated the accuracy ultrasound (EUS) EUS-guided fine-needle aspiration (EUS-FNA) in diagnosis biopsy GI tumors.One hundred nine patients with were included this prospective study. EUS EUS-FNA performed all cytopathologic examination.There 109 lesions, including 61 males (56%)...
The Beyond fifth Generation (B5G) communication systems imposed several challenges on radio designers. For example, a machine is required to set up call at low Signal-to-Noise Ratio (SNR), as -10 dB, in the extended coverage mode. Moreover, only one receive antenna will be available, and virtually no frequency diversity. Such requirements present major maintaining timing synchronization. Carrier Frequency Offset (CFO) estimation heart of these challenges. Different ways have been proposed...
Abstract Background COVID-19’s after-effects among survivors are of increased concern. The cognitive aftermath COVID-19 virus infection was underrated. This study aimed to identify and compare the impairment (CI) its correlates control subjects. A total 85 adults who survived an equal number subjects (matched for age, sex, education, socioeconomic level) were included in this study. They recruited from Zagazig University Hospitals, Sharkia Province, Egypt. All interviewed utilizing a...
The massive integration of connected devices, together with the exponential growth Internet traffic, have forced mobile network operators to continuously upgrade their infrastructures. densification network, by introducing many more small cells, was promoted as a solution meet ongoing challenges. However, implies need for an appropriate backhaul capable handling anticipated traffic. This article presents brief overview wireless requirements and technologies that reinforce resiliency...
Ultra-dense 5G and beyond deployments are setting significant burden on cellular networks, especially for wireless backhauls. Today, a careful planning backhaul is more critical than ever. In this letter, we study the hierarchical topology design problem. We introduce Deep Reinforcement Learning (DRL) based algorithm that can solve problem efficiently. compare quality of solutions derived by our DRL approach to optimal solution, according Integer Linear Program (ILP) formulation in previous...
It is well established that the performance of communication systems improved when deploying multiple antennas at one or both transmit/receive sides; and amount gained improvement depends on level multipath richness propagation channel. In ship-to-ship overwater channels, quantifying such an not easy task due to effect evaporation duct imposing complex range- height-dependent patterns received signal level. this study, based parabolic equations (PE) method using realistic distributions, we...
Liver cirrhosis is an irreversible destructive liver disease that associated with a wide range of complications. Among the recognized comorbidities are sleep-disordered breathing (SDB), which being more and often described among cirrhotics. This study aimed to detect prevalence SDB Egyptian post-viral cirrhotic adults.This enrolled 48 patients 16 apparently healthy control subjects. All controls were evaluated by thorough history taking, full clinical examination, laboratory investigations,...
Introduction: COVID-19 severity and mortality predictors could determine admission criteria reduce mortality. We aimed to evaluate the clinical-laboratory features of hospitalized patients with develop a novel score Methodology: This retrospective cohort study was conducted using data from who were admitted five Egyptian university hospitals. Demographics, comorbidities, clinical manifestations, laboratory parameters, duration hospitalization, disease outcome analyzed, predict developed....
The exponential growth of traffic in mobile networks is leading to increased pressure on the infrastructure and particular their backhaul networks. It more critical than ever carefully plan In this paper, we formulate solve problem hierarchical wireless network design. formulating our problem, cover different requirements, namely: topology simplicity, resiliency, link reliability. We as an Integer Linear Programming (ILP) allowing us optimality. Furthermore, provide a graph theory-based...
Background The main determinants for COPD exacerbations are previous history of exacerbation, the severity disease, and presence comorbidities. However, role GER in this setting remains unclear. Aim To assess impact on exacerbation frequency. Methods Stable patients were included.Diagnosis was done by GERD questionnaire.Patients classified into two groups (COPD with & without GERD). Associations degree airway obstruction, frequency ,ICU admission mechanical ventilation year assessed. Factors...
Abstract Background Tuberculosis is a communicable disease that one of the leading cause death from single infectious agent (ranking above human immunodeficiency virus/acquired syndrome). The aim this work was to study trend applying tuberculosis control program at ministry health and population chest hospitals, Sharkia, Egypt. Results This retrospective cross-sectional carried out using medical records registry Ministry Health Population Sharkia Governorate. investigated variables included...
Background and study aim: The incidence of hepatocellular carcinoma (HCC) is rising worldwide being the fifth most common cancer third cause cancer-related mortality.Early detection HCC associated with a better outcome.In Egypt over last decades, remarkable rise was observed in proportion chronic liver disease patients.The aim this to compare between Radiofrequency ablation (RF) & Percutaneous Ethanol Injection (PEI) treating small cirrhotic /bilharzial patients. Patients Methods:We divided...
The ongoing COVID-19 pandemic has highlighted the central role of diagnostic tests in control. Although reverse transcriptase quantitative real-time PCR (RT-qPCR) is gold standard for diagnosis COVID-19, several rapid antigen (RAT) have been commercialized as point-of-care diagnostics. To best our knowledge, there are limited data on effect patient’s clinical and laboratory parameters RAT performance no studies exist that tested importance combining measurements blood enhancing RAT. Here we...
Background: Hepatorenal syndrome type II and acute kidney injury found in 20% of cirrhotic patients.Rifaximin was to reduce the frequency hepatorenal alcohol patients.This study aimed evaluate efficacy rifaximin prevention Egyptian HCV patients.Methods: The included 120 patients with decompensated post cirrhosis selected from admitted Tropical Medicine department intensive care unit Internal unit.They were classified into two groups first a control group (n = 60) second 60).Rifaximin...
Background: Several risk scores were clinically assessed for stratification of patients with UGIB including Glascow-Blatchford score (GBS) and Rockall pre post endoscopy.Many studies tried to detect value lactate as a predictor mortality but its role in association other systems is not well defined.Objective: To deduct the scoring assessment outcomes UGIB. Patients Methods:We conducted prospective cohort study admitted ICU Tropical Medicine Department, Zagazig University Hospitals through...
Background and study aim: Single nucleotide polymorphisms near Interleukin 28B are strongly associated with favourable treatment response of chronic hepatitis C such as, the homozygous CC at markers129798Session [CurrentTestPartID]. Interferon-Gamma Inducible Protein-10 (IP-10) can be produced by a variety cells, including hepatocytes. Pre-treatment plasma levels IP10 elevated in patients chronically infected virus genotypes 1 or 4 who do not achieve early virological response(EVR)to...
Background and study aim: Portal hypertension (PH) is a frequent complication of cirrhosis, contributing to the development ascites, esophageal varices (EV) hepatic encephalopathy. The best available methodology for assessment PH measurement vein pressure gradient (HVPG). However, performance HVPG limited highly specialized centers requires extensive experience Predicting presence, grading follow up by non-invasive means might increase compliance would permit restrict endoscopy those...