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Moderate Secondary Tricuspid Regurgitation: Does It Worth More Time to Conserve?

Open Journal of Thoracic Surgery 2021年第3期11卷 59-68页

作者： Montaser elsawy Abd elaziz ahmed Labib Dokhan Awny Gamal Shalaby Hesham Hassan ahmed mohammed ahmed el-hag-aly mohammed Fawzy eltaweel Cardithoracic Surgery Department Faculty of Medicine Menoufia University Menoufia Egypt Faculty of Medicine Jazan University Jazan KSA Cardiology Department Faculty of Medicine Menoufia University Menoufia Egypt

Background: Concomitant repair of moderate secondary tricuspid regurgitation (STR) during mitral valve surgery is still subject of controverse. This research aims to study the early and mid-term postoperative influence of tricuspid repair on the clinical outcomes and right ventricular functions. Methods: This is a retrospective cohort study of 92 patients with moderate STR who underwent tricuspid valve repair

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Advanced Functional electromagnetic Shielding Materials:A Review Based on Micro‑Nano Structure Interface Control of Biomass Cell Walls

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Nano-Micro Letters 2025年第1期17卷 98-134页

作者： Yang Shi Mingjun Wu Shengbo Ge Jianzhang Li Anoud Saud Alshammari Jing Luo mohammed A.Amin Hua Qiu Jinxuan Jiang Yazeed M.Asiri Runzhou Huang Hua Hou Zeinhom M.el‑Bahy Zhanhu Guo Chong Jia Kaimeng Xu Xiangmeng Chen Co‑Innovation Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037People’s Republic of China State Key Laboratory of Efficient Production of Forest Resourced Beijing Forestry UniversityQinghua East Road 35Haidian DistrictBeijing 100083People’s Republic of China Department of Physics Faculty of Sciences‑ArarNorthern Border UniversityArar 91431Saudi Arabia Department of Chemistry College of ScienceTaif UniversityP.O.Box 1109921944 TaifSaudi Arabia Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’anShaanxi 710072People’s Republic of China Integrated Composites Lab Department of Mechanical and Construction EngineeringNorthumbria UniversityNewcastle Upon Tyne NE18STUK College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024People’s Republic of China Department of Chemistry Faculty of ScienceAl-Azhar UniversityNasr CityCairo 11884Egypt Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products International Joint Research Center for Biomass MaterialsSouthwest Forestry UniversityKunming 650224People’s Republic of China School of Science Henan Agricultural UniversityZhengzhou 450002People’s Republic of China

Research efforts on electromagnetic interference(EMI)shielding materials have begun to converge on green and sustainable biomass *** materials offer numerous advantages such as being lightweight,porous,and *** to their porous nature,interfacial compatibility,and electrical conductivity,biomass materials hold significant potential as EMI shielding *** concerted efforts on the EMI shielding of biomass materials have been reported,this research area is still relatively new compared to traditional EMI shielding *** particular,a more comprehensive study and summary of the factors influencing biomass EMI shielding materials including the pore structure adjustment,preparation process,and micro-control would be *** preparation methods and characteristics of wood,bamboo,cellulose and lignin in EMI shielding field are critically discussed in this paper,and similar biomass EMI materials are summarized and *** composite methods and fillers of various biomass materials were *** paper also highlights the mechanism of EMI shielding as well as existing prospects and challenges for development trends in this field.

关键词： Biomass materials electromagnetic interference shielding Micro-nano structure interface control Conductivity

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Real-Time Multi-Class Infection Classification for Respiratory Diseases

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Computers, Materials & Continua 2022年第11期73卷 4157-4177页

作者： ahmed el.Shafee Walid el-Shafai Abdulaziz Alarifi mohammed Amoon Aman Singh Moustafa H.aly Department of electrical Engineering Faculty of EngineeringAhram Canadian UniversityGizaEgypt Department of electronics and electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt Department of Computer Science Community CollegeKing Saud UniversityRiyadh11437Saudi Arabia Higher Polytechnic School Universidad Europea del AtlánticoSantander39011Spain electronics and Communications Engineering Department College of Engineering and TechnologyArab Academy for ScienceTechnology and Maritime TransportAlexandria1029Egypt

Real-time disease prediction has emerged as the main focus of study in the field of computerized *** disease identification framework can assist medical practitioners in diagnosing disease in a way that is reliable,consistent,and timely,successfully lowering mortality rates,particularly during endemics and *** prevent this pandemic’s rapid and widespread,it is vital to quickly identify,confine,and treat affected *** need for auxiliary computer-aided diagnostic(CAD)systems has *** recent studies have indicated that radiological pictures contained critical information regarding the COVID-19 *** advanced convolutional neural network(CNN)architectures in conjunction with radiological imaging makes it possible to provide rapid,accurate,and extremely useful susceptible *** research work proposes a methodology for real-time detection of COVID-19 infections caused by the Corona *** purpose of this study is to offer a two-way COVID-19(2WCD)diagnosis prediction deep learning system that is built on Transfer Learning Methodologies(TLM)and features customized fine-tuning on top of fully connected layered pre-trained CNN architectures.2WCD has applied modifications to pre-trained models for better *** is designed and implemented to improve the generalization ability of the classifier for binary and multi-class *** with the ability to differentiate COVID-19 and No-Patient in the binary class model and COVID-19,No-Patient,and Pneumonia in the multi-class model,our framework is augmented with a critical add-on for visually demonstrating infection in any tested radiological image by highlighting the affected region in the patient’s lung in a recognizable color *** proposed system is shown to be extremely robust and reliable for real-time COVID-19 diagnostic *** can also be used to forecast other lung-related *** the system can assist medical practitioner

关键词： COVID-19 real-time computerized disease prediction intelligent disease identification framework CAD systems X-rays CT-scans CNN real-time detection of COVID-19 infections

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Dietary supplementation of some antioxidants against hypoxia

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World Journal of Gastroenterology 2012年第44期18卷 6379-6386页

作者： Sanaa ahmed Ali Hanan Farouk aly Lilla mohammed Faddah Zeenat F Zaidi Department of Therapeutic Chemistry Division of Pharmaceutical and Drug IndustriesNational Research CenterCairo 12622Egypt Department of Pharmacology College of PharmacyKing Saud UniversityRiyadh 11495Saudi Arabia Department of Anatomy Faculty Of MedicineKing Saud UniversityRiyadh 11495Saudi Arabia

The present study aims to clarify the protective effect of supplementation with some antioxidants,such as idebenone(200 mg/kg,ip),melatonin(10 mg/kg,ip) and arginine(200 mg/kg,ip) and their combination,on liver function(***,albumin,alanine aminotransferase,aspartate aminotransferase and alkaline phosphatase),energetic parameters(adenosine triphosphate,adenosine diphosphate,adenosine monophosphate,inorganic phosphate,total adenylate,adenylate energy charge and potential phosphate).The effect on glycolytic and glycogenolytic enzymes(glucose,glycogen,glycogen phosphorylase,pyruvate kinase and phosphofructokinase against hypoxia) was also *** drugs were administered 24 and 1 h prior sodium nitrite *** biochemical parameters were estimated 1 h after sodium nitrite *** of sodium nitrite(75 mg/kg,sc) produced a significant disturbance in all biochemical parameters of liver function,energetic parameters and glycolytic and glycogenolytic *** damage was confirmed by histopathological examination of the liver as compared to *** marked changes in hepatic cells induced by sodium nitrite were completely abolished by pretreatment with the drug combination,suggesting potential protection against sodium nitrite-induced *** could be concluded that a combination of both idebenone and melatonin or idebenone and arginine provides potential protection against sodium nitrite-induced hypoxia by improving biochemical parameters and preserving liver histology.

关键词： Hypoxia Idebenone Melatonin Nitrate/ni-trite Adenosine triphosphate

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An Efficient Medical Image Deep Fusion Model Based on Convolutional Neural Networks

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Computers, Materials & Continua 2023年第2期74卷 2905-2925页

作者： Walid el-Shafai Noha A.el-hag ahmed Sedik Ghada elbanby Fathi E.Abd el-Samie Naglaa F.Soliman Hussah Nasser AlEisa mohammed E.Abdel Samea Department of electronics and electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt Security Engineering Laboratory Department of Computer SciencePrince Sultan UniversityRiyadh11586Saudi Arabia Higher Institute of Commercial Science Management Information SystemsEl-Mahala El-KobraEgypt Department of the Robotics and Intelligent Machines Faculty of Artificial IntelligenceKafrelsheikh UniversityKafr El-SheikhEgypt Department of Industrial electronics and Control Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt Department of Information Technology College of Computer and Information SciencesPrincess Nourah Bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Computer Sciences College of Computer and Information SciencesPrincess Nourah Bint Abdulrahman UniversityRiyadhSaudi Arabia Medical Imaging and Interventional Radiology National Liver InstituteMenoufia UniversityEgypt

Medical image fusion is considered the best method for obtaining one image with rich details for efficient medical diagnosis and *** learning provides a high performance for several medical image analysis *** paper proposes a deep learning model for the medical image fusion *** model depends on Convolutional Neural Network(CNN).The basic idea of the proposed model is to extract features from both CT and MR ***,an additional process is executed on the extracted *** that,the fused feature map is reconstructed to obtain the resulting fused ***,the quality of the resulting fused image is enhanced by various enhancement techniques such as Histogram Matching(HM),Histogram Equalization(HE),fuzzy technique,fuzzy type,and Contrast Limited Histogram Equalization(CLAHE).The performance of the proposed fusion-based CNN model is measured by various metrics of the fusion and enhancement *** realistic datasets of different modalities and diseases are tested and ***,real datasets are tested in the simulation analysis.

关键词： Image fusion CNN deep learning feature extraction evaluation metrics medical diagnosis

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Microbial detoxification of metalaxyl in aquatic system

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Journal of Environmental Sciences 2008年第3期20卷 262-267页

作者： ahmed H. Massoud aly S. Derbalah el-Sayed. B. Belal Pesticides Department Faculty of Agriculture Kafr El-Sheikh University. Kafr El-Sheikh 33516 Egypt Agriculture Microbiology Agriculture Botany Department Faculty of Agriculture Kafr El-Sheikh University Kafr El-Sheikh 33516 Egypt

Four microorganisms, Pseudomonas sp. （ER2）, Aspergillus niger （ER6）, Cladosporium herbarum （ER4） and Penicilluim sp. （ER3）, were isolated from cucumber leaves previously treated with metalaxyl using enrichment technique. These isolates were evaluated for detoxification of metalaxyl at the recommended dose level in aquatic system. The effect of pH and temperature on the growth ability of the tested isolates was also investigated by measuring the intracellular protein and mycelia dry weight for bacterial and fungal isolates, respectively. Moreover, the toxicity of metalaxyl after 28 d of treatment with the tested isolates was evaluated to confirm the complete removal of any toxic materials （metalaxyl and its metabolites）. The results showed that the optimum degree pH for the growth of metalaxyl degrading isolates （bacterial and fungal isolates） was 7. The temperature 30℃ appeared to be the optimum degree for the growth of either fungal or bacterial isolates. The results showed that Pseudomonas sp. （ER2） was the most effective isolate in metalaxyl degradation followed by Aspergillus niger （ER6）, Cladosporium herbarum （ER4） and Penicilluim sp. （ER3）, respectively. There is no toxicity of metalaxyl detected in the supematant after 28 d of treatment with Pseudomonas sp. （ER2）. The results suggest that bioremediation by Pseudomonas sp. （ER2） isolate was considered to be effective method for detoxification of metalaxyl in aqueous media.

关键词： metalaxyl biodegradation microorganisms, toxicity

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Detection of Impending Vehicle Rollover with Road Bank Angle Consideration Using a Robust Fuzzy Observer

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International Journal of Automation and computing 2015年第1期12卷 93-101页

作者： Hamid Dahmani mohammed Chadli Abdelhamid Rabhi ahmed el Hajjaji University of Picardie Jules Verne-MIS Laboratory (EA4290) 33 rue Saint-Leu Amiens 80039 France

This article describes a method of vehicle dynamics estimation for impending rollover detection. We estimate vehicle dynamic states in presence of the road bank angle as a disturbance in the vehicle model using a robust observer. The estimated roll angle and roll rate are used to compute the rollover index which is based on the prediction of the lateral load transfer. In order to anticipate rollover detection, a new method is proposed to compute the time to rollover(TTR) using the load transfer ratio(LTR). The nonlinear model, deduced from the vehicle lateral and roll dynamics, is represented by a Takagi-Sugeno(T-S) fuzzy model. This representation is used to account for the nonlinearities of lateral cornering forces. The proposed T-S observer is designed with unmeasurable premise variables to cater for non-availability of the slip angles measurement. The proposed approach is evaluated using Car Sim simulator under different driving scenarios. Simulation results show good efficiency of the proposed T-S observer and the rollover detection method.

关键词： Vehicle rollover vehicle dynamics Takagi-Sugeno(T-S) fuzzy model observer uncertainties Lyapunov method linear matrix inequalities(LMI)

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Bronchotomy as a Safe and Feasible Alternative to Failed Bronchoscopic Removal of Foreign Body Inhalation in Pediatrics. A Seven-Year Review

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Open Journal of Thoracic Surgery 2021年第2期11卷 47-57页

作者： Montaser Abd elaziz mohammed eltaweel Mohamed elsayed mohammed el-hag-aly Cardiothoracic Surgery Department Faculty of Medicine Menoufia University Al Minufya Egypt Faculty of Medicine Jazan University Jazan KSA

Background: Aspiration of foreign body is popular in pediatric age group and is considered as an important cause of respiratory distress and chocking in these children. Management strategies are different according to the mode of presentation. This study aims to assess the efficacy of rigid bronchoscopy and the role of bronchotomy as a safe alternative for failed removal of inhaled foreign body. Methods: We enrolled 254 patients with foreign body aspiration (FBA) up to 14 years old in a retrospective observational study. Our patients were reviewed from the Cardiothoracic Surgery Department and cases referred from Otorhinolaryngology Department, Menoufia University Hospital between June 2010 and July 2017. Using jet ventilation technique, foreign body was removed by the rigid bronchoscopy with either extracting forceps or postural drainage. Surgical interference such as bronchotomy needed in distally impacted foreign bodies (FBs). Results: Our study included 254 patients prepared for bronchoscopic FBs extraction. Most of cases (68.8%) presented early within first week (174 cases). No FBs detected in 44 cases by rigid bronchoscopy, although it was successful in 176 (69.5%) cases with non- impacted inhaled FBs. 14 cases only needed postural drainage due to inaccessible FBs, another 12 cases failed to extract FB with rigid bronchoscopy but they were managed with flexible bronchoscopy. Bronchotomy was needed for impacted FBs in eight cases (3%). Conclusion: This study’s findings support that rigid bronchoscopy is the gold standard in the diagnosis and removal of foreign body aspirations in pediatrics, but rigid bronchoscopy demonstrated less capability in the diagnosis and removal of small distally located foreign bodies. Bronchotomy is safe and effective alternative.

关键词： Bronchoscopy Bronchotomy Foreign Body

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Correction:A Lightweight Approach for Skin Lesion Detection through Optimal Features Fusion

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Computers, Materials & Continua 2025年第1期82卷 1459-1459页

作者： Khadija Manzoor Fiaz Majeed Ansar Siddique Talha Meraj Hafiz Tayyab Rauf mohammed A.el-Meligy Mohamed Sharaf Abd elatty E.Abd elgawad Department of Information Technology University of GujratGujrat50700Pakistan Department of Software Engineering University of GujratGujrat50700Pakistan Department of Computer Science COMSATS University Islamabad-Wah CampusWah Cantt47040Pakistan Independent Researcher BradfordBD80HSUK Advanced Manufacturing Institute King Saud UniversityRiyadh11421Saudi Arabia Department of Industrial Engineering College of EngineeringKing Saud UniversityRiyadh11421Saudi Arabia

In the article“A Lightweight Approach for Skin Lesion Detection through Optimal Features Fusion”by Khadija Manzoor,Fiaz Majeed,Ansar Siddique,Talha Meraj,Hafiz Tayyab Rauf,mohammed ***-Meligy,Mohamed Sharaf,Abd elatty *** elgawad Computers,Materials&Continua,2022,Vol.70,No.1,pp.1617–***:10.32604/cmc.2022.018621,URL:https://***/cmc/v70n1/44361,there was an error regarding the affiliation for the author Hafiz Tayyab *** of“Centre for Smart Systems,AI and Cybersecurity,Staffordshire University,Stoke-on-Trent,UK”,the affiliation should be“Independent Researcher,Bradford,BD80HS,UK”.

关键词： Fusion Skin Feature

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Fabrication and characterization of gold nano particles for DNA biosensor applications

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Chinese Chemical Letters 2016年第5期27卷 801-806页

作者： ahmed Mishaal mohammed Chemistry Department College of Science Anbar University Institutes of Nano electronic Engineering University Malaysia Perlis

This research involves the preparation ofa biosensor using silicon oxide for biomedical applications, and its effective use for the detection of target DNA hybridization. An electrochemical DNA biosensor was successfully fabricated by using （3-aminopropyl） tri-ethoxysilane （APTES） as a linker molecule combined with gold nanoparticles （GNPs） on a thermally oxidized 5i02 thin film. The size of the GNPs was calculated by utilizing UV-vis data with an average calculated particle size within the range of 30 - 5 nm, and characterization by transmission electron microscopy （TEM） and atomic force microscopy （AFM）. The GNP-modified SiO2 thin films were electrically characterized through the measurement of capacitance, permittivity and conductivity using a low-cost dielectric analyzer. The capacitance, permittivity and conductivity profiles of the fabricated sensor clearly differentiated DNA immobilization and hybridization.

关键词： Gold nanoparticleselectrochemical DNA hybridization Dielectric analyzer

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