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Omicron: Egyptian nurses’ knowledge and attitudes

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Journal of Integrative Nursing 2022年第1期4卷 15-19页

作者： Mostafa SHABAN Marwa Mamdouh SHABAN Osama RAMADAN Huda hamdy MOHAMMED Department of Nursing College of Applied Medical SciencesJouf UniversitySakakaSaudi Arabia Department of Community Health Nursing Faculty of NursingCairo UniversityCairoEgypt Department of Maternal and New-born Health Nursing Faculty of NursingHelwan UniversityHelwanEgypt

Objective:The current study aimed to assess the knowledge and attitudes of nurses toward the current COVID-19 pandemic and Omicron *** and Methods:A cross-sectional online survey was *** 277 Egyptian nurses completed an electronic questionnaire comprising demographics with 5 items,nurses’knowledge on Omicron with 18 questions,and nurses’attitudes on Omicron with 5 *** data collected were expressed using numbers,percentages,and mean and standard ***:The mean age of nurses was 27±5 years,nearly 50%of the nurses were bachelor *** total score of correct answers related to knowledge was 75%,showing the different degrees of knowledge about *** majority of nurses showed positive attitudes toward controlling and managing the COVID-19 ***:Egyptian nurses have average knowledge about Omicron and a positive attitude toward controlling the COVID-19 *** should be scope for further assessment to enhance understanding about ***,health education programs should be developed for nursing staff to improve information,beliefs,behaviors,and attitudes towards the Omicron variant in particular and the COVID-19 pandemic in general.

关键词： Attitude COVID-19 Egypt knowledge Omicron pandemic

Tissue Doppler,speckling tracking and four-dimensional echocardiographic assessment of right ventricular function in children with dilated cardiomyopathy

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World Journal of Clinical Pediatrics 2022年第1期11卷 71-84页

作者： Mohammed Al-Biltagi Osama Elrazaky Wegdan Mawlana Esraa Srour Ahmed hamdy Shabana Department of Pediatrics Faculty of MedicineTanta UniversityTanta 31512AlgharbiaEgypt Department of Pediatrics University Medical CenterArabian Gulf UniversityManama 26671ManamaBahrain

BACKGROUND Right ventricular(RV)function is frequently overlooked during dilated cardiomyopathy(DCM)*** To evaluate RV function in children with idiopathic DCM using relatively recent echocardiographic *** We prospectively studied the cardiac function in 50 children with idiopathic DCM and 50 healthy children as a control group,using four-dimensional echocardiography(4-DE),Tissue Doppler Imaging(TDI),and two-dimensional-speckles tracking echocardiography(2-D-STE).RV EF was measured by *** The auto left(LV)ejection fractions(EF)measured by 2-D-STE were significantly lower in the patients'group than in the *** sphericity index was also significantly lower in children with DCM than in the *** EF measured by 4-DE was significantly lower in the patient's group than the *** S wave,e´/a'ratio,myocardial performance index(MPI),and tricuspid annular plane systolic excursion(TAPSE)were significantly impaired in children with DCM than in *** LV and RV global longitudinal strains(GLS)were significantly reduced in children with DCM than in *** was significantly associated with the duration since diagnosis,tricuspid annulus S wave,RV MPI,and TAPSE,but not with the age of the patients,RV EF,or e´/a'*** There was impairment of the RV LGS and other systolic and diastolic parameters in children with *** and TDI can help to detect the early decline of RV function.

关键词： Tissue Doppler Speckling tracking Echocardiography Dilated cardiomyopathy Children Right ventricle

Co-doped Ni_(3)S_(2) nanosheet array: A high-efficiency electrocatalyst for alkaline seawater oxidation

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Nano Research 2024年第3期17卷 1050-1055页

作者： Meng Yue Xun He Shengjun Sun Yuntong Sun Mohamed S.hamdy Mhamed Benaissa Alsamani A.M.Salih Jun Liu Xuping Sun College of Chemistry Chemical Engineering and Materials ScienceShandong Normal UniversityJinan 250014China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Department of Chemistry College of ScienceKing Khalid UniversityP.O.Box 9004Abha 61413Saudi Arabia Department of Chemical Engineering College of EngineeringUniversity of Ha’ilP.O.Box 2440Ha’il 81441Saudi Arabia Department of Otolaryngology-Head&Neck Surgery West China HospitalSichuan UniversityChengdu 610041China

Developing efficient and durable oxygen evolution reaction(OER)catalysts holds great promise for green hydrogen production via seawater electrolysis,but remains a ***,we report a Co-doped Ni_(3)S_(2) nanosheet array on Ni foam(Co-Ni_(3)S_(2)/NF)as a high-efficiency OER electrocatalyst for *** alkaline conditions,Co-Ni_(3)S_(2)/NF requires an overpotential of only 368 mV to drive 100 mA·cm^(–2),superior to Ni_(3)S_(2)/NF(385 mV).Besides,it exhibits at least 50-h continuous electrolysis.

关键词： Co doping Ni_(3)S_(2)nanosheet array oxygen evolution reaction seawater electrolysis electrocatalyst

Rao Algorithms-Based Structure Optimization for Heterogeneous Wireless Sensor Networks

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Computers, Materials & Continua 2024年第1期78卷 873-897页

作者： Shereen K.Refaay Samia A.Ali Moumen T.El-Melegy Louai A.Maghrabi hamdy H.El-Sayed Faculty of Computers and Artificial Intelligence Sohag UniversitySohag82524Egypt Faculty of Engineering Assiut UniversityAssiut711745Egypt College of Engineering University of Business and TechnologyJeddah23411Saudi Arabia

The structural optimization of wireless sensor networks is a critical issue because it impacts energy consumption and hence the network’s *** studies have been conducted for homogeneous networks,but few have been performed for heterogeneouswireless sensor *** paper utilizes Rao algorithms to optimize the structure of heterogeneous wireless sensor networks according to node locations and their initial *** proposed algorithms lack algorithm-specific parameters and metaphorical *** proposed algorithms examine the search space based on the relations of the population with the best,worst,and randomly assigned *** proposed algorithms can be evaluated using any routing protocol,however,we have chosen the well-known routing protocols in the literature:Low Energy Adaptive Clustering Hierarchy(LEACH),Power-Efficient Gathering in Sensor Information Systems(PEAGSIS),Partitioned-based Energy-efficient LEACH(PE-LEACH),and the Power-Efficient Gathering in Sensor Information Systems Neural Network(PEAGSIS-NN)recent routing *** compare our optimized method with the Jaya,the Particle Swarm Optimization-based Energy Efficient Clustering(PSO-EEC)protocol,and the hybrid Harmony Search Algorithm and PSO(HSA-PSO)*** efficiencies of our proposed algorithms are evaluated by conducting experiments in terms of the network lifetime(first dead node,half dead nodes,and last dead node),energy consumption,packets to cluster head,and packets to the base *** experimental results were compared with those obtained using the Jaya optimization *** proposed algorithms exhibited the best *** proposed approach successfully prolongs the network lifetime by 71% for the PEAGSIS protocol,51% for the LEACH protocol,10% for the PE-LEACH protocol,and 73% for the PEGSIS-NN protocol;Moreover,it enhances other criteria such as energy conservation,fitness convergence,packets to cluster head,and packets to the base sta

关键词： Wireless sensor networks Rao algorithms optimization LEACH PEAGSIS

Liposuction for chronic medical diseases and noncosmetic conditions:review of the literature

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Plastic and Aesthetic Research 2015年第1期2卷 1-6页

作者： hamdy Abuelhassan El-Khatib Department of Plastic and Hand Surgery Alkhor HospitalHamad Medical CorporationDoha 00974Qatar

The purpose of this systematic literature review was to evaluate the safety of liposuction techniques and to identify the cosmetic and noncosmetic application of *** can be used to improve the quality-of-life in patients with disabling medical conditions in addition to its use for cosmetic *** online search of the Cochrane Library,MEDLINE,Embase,and SciELO were ***-seven original articles reported from 1982 to February 2014 were included in this *** articles reported on the use as well as the limitations of liposuction for treatment of noncosmetic and disabling medical *** criteria used for selection of articles were:large sample size and *** case reports were *** was a broad agreement about the applicability and the efficacy of the liposuction for treatment of these chronic medical conditions,such as multiple systemic lipomatosis,dercum’s disease,chronic lymphedema,and axillary *** review confirmed that Liposuction technique has provided significant and stable cure for these chronic medical *** is the most frequent esthetic procedure for adipose tissue reduction and treatment of lipedema *** from esthetic indications,liposuction can also be used to treat chronic medical diseases and noncosmetic conditions.

关键词： Liposuction noncosmetic indications lipomatosis

Contribution of Satellite Altimetry Data in the Environmental Geophysical Investigation of the Northern Egyptian Continental Margin

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International Journal of Geosciences 2012年第3期3卷 431-442页

作者： hamdy Ahmed Mohamed Aboulela Marine Science Department Faculty of Science Suez Canal University Ismailia Egypt

The northern Egyptian continental margin is characterized by interesting tectonic settings as well as trade and industry district in Egypt. In the current study, the contribution role of satellite altimetry gravity data in the Environmental geophysical investigation is presented to give a complete view of the marine gravity field of the study area. The satellite data showed only minor deviations in some partial regions of the area investigated such as Nile Deep Sea Fan, Levant Basin, Eratosthenes Seamount and Herodotus basin. The interpretations of the entire data illustrated that the differences between the satellite and the shipboard data were small in some regions particularly near to land. Furthermore, a number of strong deviations in some regions were spatially correlated with bathymetric depth together with the appearance of geological structures.

关键词： Northern Egyptian Continental Margin Satellite Altimetry Data Free-Air Gravity

The extended running W-plasty:an additional tool for simultaneous reduction of the hypertrophied labia minora and redundant clitoral hood

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Plastic and Aesthetic Research 2016年第1期3卷 359-363页

作者： hamdy A.Elkhatib Plastic and Hand Surgery Department Alkhor HospitalDoha 00974Qatar

Aim:The extended running W-plasty technique using the W-plasty principle is a modification of the conventional *** use of this technique was utilized for simultaneous reduction of the protuberant labia minora and the redundant ***:Twenty-three patients presented to the plastic surgery clinic between 2008 and 2015 with the complaints of protuberant and enlarged labia minora in conjunction with a hypertrophied clitorial *** extended running W-plasty was performed in all *** was performed under general anesthesia as an outpatient procedure with a range of operative time from 30-45 *** Likert scale was used to evaluate ***:Patients maintained labial length with decreased *** hematomas occurred in 2 patients and were treated *** case of wound dehiscence occurred and was also treated *** returned to normal activity 5-7 days *** cosmetic outcome of all patients was very ***:The running W-plasty technique is ideal for closure of secondary defects following excision of both the redundant labia minora and clitoral hood,while maintaining length and providing tensionless *** technique conserves the original tissues while avoiding over-or under-resection of the labia.

关键词： Extended W-plasty labia minora clitoral hood reduction

Clinical correlates of common corneal neovascular diseases: a literature review

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International Journal of Ophthalmology(English edition) 2015年第1期8卷 182-193页

作者： Nizar Saleh Abdelfattah Mohamed Amgad Amira A Zayed hamdy Salem Ahmed E Elkhanany Heba Hussein Nawal Abd El-Baky Doheny Image Reading Center Doheny Eye InstituteUniversity of California Faculty of Medicine Cairo University Department of Surgery Mayo Clinic Faculty of Medicine University of Alexandria Department of Medical Oncology Mayo Clinic Faculty of Oral and Dental Medicine Cairo University Antibody Laboratory Protein Research DepartmentGenetic Engineering and Biotechnology Research InstituteCity for Scientific Research and Technology Applications

A large subset of corneal pathologies involves the formation of new vessels(neovascularization), leading to compromised visual acuity. This article aims to review the clinical causes and presentations of corneal neovascularization(CNV) by examining the mechanisms behind common CNV-related corneal pathologies, with a particular focus on herpes simplex stromal keratitis,contact lenses-induced keratitis and CNV secondary to keratoplasty. Moreover, we reviewed CNV in the context of different types of corneal transplantation and keratoprosthesis, and summarized the most relevant treatment available so far.

关键词： cornea neovascularization herpes simplex keratitis keratoplasty contact lens keratoprosthesis

Impact of cigarette smoking on response to interferon therapy in chronic hepatitis C Egyptian patients

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World Journal of Gastroenterology 2004年第20期10卷 2963-2966页

作者： A.EI-Zayadi Osaima Selim H.hamdy A.EI-Tawil Hanaa M.Badran M.Attia A.Saeed Departments of Tropical Medicine Ain Shams UniversityCairoEgypt Department of Clinical Pathology Ain Shams UniversityCairoEgypt Department of Pathology Ain Shams UniversityCairoEgypt Department of Hepatology National Liver InstituteMenoufeyaEgypt Department of Hepatology and Gastroenterology Theodor Bilharz Research InstituteCairoEgypt Cairo Liver Center GizaEgypt

AIM:Smoking may affect adversely the response rate to interferon-α.Our objective was to verify this issue among chronic hepatitis C patients. METHODS:Over the year 1998,138 chronic hepatitis C male Egyptian patients presenting to Cairo Liver Center, were divided on the basis of smoking habit into:group I which comprised 38 smoker patients(>30 cigarettes/d) and group Ⅱ which included 84 non-smoker patients. Irregular and mild smokers(16 patients)were excluded. Non eligible patients for interferon-α therapy were excluded from the study and comprised 3/38(normal ALT)in group I and 22/84 in group Ⅱ(normal ALT,advanced cirrhosis and thrombocytopenia).Group I was randomly allocated into 2 sub-groups:group Ia comprised 18 patients who were subjected to therapeutic phlebotomy while sub-group Ib consisted of 17 patients who had no *** sub-group la,3 patients with normal ALT after repeated phlebotomies were excluded from the ***-α 2b 3 MU/TIW was given for 6 mo to 15 patients in group Ia,17 patients in group Ib and 62 patients in group Ⅱ. Biochemical,virological end-of-treatment and sustained responses were evaluated. RESULTS:At the end of interferon-α treatment,ALT was normalized in 3/15 patients(20%)in group Ia and 2/17 patients(11.8%)in group Ib compared to17/62 patients (27.4%)in group Ⅱ(P=0.1).Whereas 2/15 patients(13.3%) in group *** 2/17 patients(11.8%)in group Ib lost viraemia compared to 13/62 patients(26%)in group Ⅱ (P=0.3).Six months later,ALT was persistently normal in 2/15 patients(13.3%)in group 1a and 1/17 patients (5.9%)in group Ib compared to 9/62 patients(14.5%)in group Ⅱ(P=0.47).Viraemia was eliminated in 1/15 patients (6.7%)in group Ia and 1/17 patients(5.9%)in group Ib compared to 7/62 patients(11.3%) in group Ⅱ,but the results did not mount to statistical significance(P=0.4). CONCLUSION:Smokers suffering from chronic hepatitis C tend to have a lower response rate to interferon-α compared to *** phlebotomy imp

关键词： Alanine Transaminase Antiviral Agents Disease Progression Drug Interactions Hepatitis C, Chronic Humans Interferon-alpha Liver Male Phlebotomy Polycythemia Smoking