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Genotypic characterization of Helicobacter pylori isolates among Egyptian patients with upper gastrointestinal diseases

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The Chinese-German Journal of Clinical Oncology 2012年第1期11卷 15-23页

作者： abdel Hamid Hussein Ezzat Mona Hamza Ali Eman Ahmed el-Seidi Iman Ezzat Wali nagwa abd el rahman sedky Sherif Medhat Mahmoud Naguib Department of Surgical Oncology National Cancer Institute Cairo University Laboratory Forensic Medicine Egyptian Ministry of Justice Medical Microbiology and Immunology Faculty of Medicine Cairo University Internal Medicine Faculty of Medicine Cairo University

Objective： Over 50% of the world populations are infected with Helicobacter pylori （H. pylori）. Most subjects are asymptomatic; however, in 1994, H. pylori has been categorized as group I carcinogen. The aim of the study was to investigate the relationship between H. pylori infection and gastric cancer. Methods： Thirty gastric cancer patients （GCs） and 30 gastritis patients were enrolled in the study. H. pylori was cultured on non-selective and selective medias, infection density was assessed by quantitative culture. Antibiotic sensitivity testing was performed. PCR was done for the H. pylori 16S rRNA gene in addition to cagA, vacA and iceA genes. Results： H. pylori could be cultured from 100% of specimens obtained from all patients. The density of H. pylori was higher in cancer cases than in gastritis patients. The 16S rRNA was detected in all GC patients （100%） while it was only detected in 70% of gastritis patients. The cagA gene was found in 53.3% vs 13.3% of GC and gastritis patients, respectively. The vacA gene was present in all GC patients （by at least one of its alleles） while it was only found in 33.3% of gastritis patients. The vacA slml combination was the most predominant genotype in GC patients, while m2 was the commonest allele in gastritis patients （10%）. The iceA gene was found in 86.7% vs 40% of GC and gastritis patients, respectively. Simultaneous presence of multiple H. pyiori strains was proved, both phenotypically and genotypically. Conclusion： The development of GC is linked to infection with H. pylori harboring certain virulence genes. Higher infection density of H. pylori was found in GC patients. Co-existence of more than one strain of H. pylori in the same patient occurs in both malignant and benign lesions.

关键词： Helicobacter pylori (H. pylori) pathogenesis virulence genes diagnosis infection density antibiotic resistance PCR

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Quran memorisation and heart rate variability:How do they correlate?

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World Journal of Clinical Cases 2024年第29期12卷 6275-6284页

作者： Ahmad Rohi Ghazali Nor Malia abd Warif Noor Anisah A Yazit Norsham Juliana Ismarulyusda Ishak Farah Wahida Ibrahim Arimi Fitri Mat Ludin Dzalani Harun Santibuana abd rahman Wan Nor Atikah Che Wan Mohd Rozali Biomedical Science Programme Faculty of Health SciencesUniversiti Kebangsaan MalaysiaKuala Lumpur 50300Malaysia Center for Toxicology and Health Risk Studies Faculty of Health SciencesUniversiti Kebangsaan MalaysiaKuala Lumpur 50300Malaysia Faculty of Medicine and Health Sciences Universiti Sains Islam MalaysiaNilai 71800Malaysia Center for Healthy Ageing and Wellness Faculty of Health SciencesUniversiti Kebangsaan MalaysiaKuala Lumpur 50300Malaysia Center for Rehabilitation and Special Needs Studies Faculty of Health SciencesUniversiti Kebangsaan MalaysiaKuala Lumpur 50300Malaysia Occupational Therapy Programme Faculty of Health SciencesUniversiti Kebangsaan MalaysiaKuala Lumpur 50300Malaysia Faculty of Pharmacy and Health Sciences Universiti Kuala Lumpur Royal College of Medicine PerakIpoh Perak 30450Malaysia

BACKGROUND Heart rate variability(HRV)was shown to be affected by performing religious *** To examine the relationship between the level of Quran(the holy book of Muslims)memorisation and HRV among *** This experimental study included 16 Tahfiz students and 16 non-Tahfiz students(n=32).The HRV was measured in three tasks:Recalling familiar verses,memorising new verses,and recalling the newly memorised verses of the *** analysis was done using these parameters:Standard deviation of N-N(heartbeat peak)interval;low frequency(LF);high frequency(HF)and LF/HF *** There were significant differences between tasks for all parameters(Pelation showed a moderate positive correlation between the number of pages memorised and the LF/HF ratio(r=0.61,Peloped as an effective sympathovagal modulation training activity.

关键词： Heart rate variability Autonomic nervous system Quran memorisation Tahfiz student Heartbeat

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SOLUTION OF THE RAYLEIGH PROBLEM FOR A POWER-LAW NON-NEWTONIAN CONDUCTING FLUID VIA GROUP METHOD

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Applied Mathematics and Mechanics(English Edition) 2002年第6期23卷 639-646页

作者： Mina B.abd-el-Malek nagwa A.Badran Hossam S.Hassan Department of Engineering Mathematics and Physics Faculty of Engineering Alexandria University Alexandria Egypt Department of Basic and Applied Science Arab Academy for Science and Technology and Maritime Transport Alexandria Egypt

An investigation is made of the magnetic Rayleigh problem where a semi_infinite plate is given an impulsive motion and thereafter moves with constant velocity in a non_Newtonian power law fluid of infinite extent. The solution of this highly non_linear problem is obtained by means of the transformation group theoretic approach. The one_parameter group transformation reduces the number of independent variables by one and the governing partial differential equation with the boundary conditions reduce to an ordinary differential equation with the appropriate boundary conditions. Effect of the some parameters on the velocity u(y,t) has been studied and the results are plotted.

关键词： Rayleigh problem group method non_linearity conducting fluid non_Newtonian power law fluid

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Role of Ni content in improvement of corrosion resistance of Zn-Ni alloy in 3.5% Na Cl solution. Part I: Polarization and impedance studies

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Transactions of Nonferrous Metals Society of China 2015年第8期25卷 2807-2816页

作者： Hany M.abd el-LATEEF abdel-rahman el-SAYED Hossnia S.MOHRAN Chemistry Department Faculty of Science Sohag University

Zn plays an important role in the protection of iron and steel from corrosion in sea water, and the alloying of Zn and Ni can improve its corrosion resistance. The corrosion behavior of Zn？Ni alloys in synthetic sea water （3.5% NaCl, mass fraction） was studied using Tafel plot and electrochemical impedance spectroscopy （EIS） techniques. The corrosion resistance of the investigated alloys with various Ni contents （0.5%？10%, mass fraction） was compared with that of Zn. The results show that the corrosion resistance of Zn？Ni alloys （except 0.5% Ni） is superior to that of Zn. The 10% Ni gives the highest corrosion resistance due to the formation ofγ-Zn3Ni withγ-ZnNi phases in the alloy. In the case of alloy I （0.5% Ni）, it exhibits a higher corrosion rate （less corrosion resistance） than Zn.

关键词： Zn-Ni alloy Ni content corrosion resistance Cl- ions impedance polarization

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Role of nickel alloying on anodic dissolution behavior of zinc in 3.5% NaCl *** II:Potentiodynamic,potentiostatic and galvanostatic studies

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Transactions of Nonferrous Metals Society of China 2015年第9期25卷 3152-3164页

作者： Hany M.abd el-LATEEF abdel-rahman el-SAYED Hossnia S.MOHRAN Chemistry Department Faculty of ScienceSohag University

Zinc is common metal used for steel protection from *** addition of further element,such as Ni,can modify the corrosion rate and maintain sacrificial *** anodic dissolution behavior of Zn,Ni and Zn-Ni alloys with different Ni contents（from 0.5% to 10%,mass fraction） in 3.5% Na Cl solution was investigated using potentiodynamic,potentiostatic and galvanostatic *** composition and microstructure of the corrosion layer on Zn,Ni and Zn-Ni alloys were characterized by energy-dispersive X-ray spectroscopy analysis（EDX） and scanning electron microscopy（SEM）.The galvanostatic curves show that the anodic behavior of all investigated electrodes exhibits active/passive transition and the tendency of the alloys to passivity decreases with the increase in Ni content,except for 99.5Zn-0.5Ni *** the potentiodynamic curves exhibit active passive transition only for pure *** analysis reveals the presence of oxides,chlorides and metal hydroxide chloride in corrosion products,and very small cracks are observed for 90Zn-10 Ni alloy compared with that of Zn.

关键词： corrosion NaCl solution Ni content Zn-Ni alloy anodic behavior

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Cylindrical Three-Dimensional Dust-Ion Acoustic Propagation in Plasmas

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Communications in Theoretical Physics 2018年第9期69卷 325-330页

作者： S.K.el-Labany E.K.el-Shewy H.N.abd el-Razek A.A.el-rahman Theoretical Physics Group Faculty of Science Domietta University Department of Physics Taibah University Theoretical Physics Group Faculty of Science Mansoura University Department of Physics Faculty of Science Assiut University

Wave properties of solitons in an unmagnetized four-component dusty plasma system contains isothermal distributed electrons, mobile ions, and negative-positive dusty grains have been examined. To study DIA wave properties,a reductive perturbation (RP) analysis is used. By a reductive perturbation (RP) analysis under convenient coordinate transformation, the three dimension Kadomtsev-Petviashvili equation in cylindrical coordinates is obtained. The effects of dust grain charge on soliton pulse structures are studied. More specifically, solitary profile depending on the axial,radial, and polar angle coordinates with time is discussed. This investigation may be viable in plasmas of the Earth’s mesosphere.

关键词： dust plasmas 3D-CKP equation dusty-ion acoustic solitary waves isothermal electrons

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Decision Making Algorithmic Approaches Based on Parameterization of Neutrosophic Set under Hypersoft Set Environment with Fuzzy, Intuitionistic Fuzzy and Neutrosophic Settings

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Computer Modeling in Engineering & Sciences 2021年第8期128卷 743-777页

作者： Atiqe Ur rahman Muhammad Saeed Sultan S.Alodhaibi Hamiden abd el-Wahed Khalifa Department of Mathematics University of Management and TechnologyLahore54000Pakistan Department of Mathematics College of Science and ArtsQassim UniversityAl-Rass51921Saudi Arabia Department of Operations Research Faculty of Graduate Studies for Statistical ResearchCairo UniversityGiza12613Egypt Department of Mathematics College of Science and ArtsQassim UniversityAl-Badaya51951Saudi Arabia

Hypersoft set is an extension of soft set as it further partitions each attribute into its corresponding attribute-valued *** structure is more flexible and useful as it addresses the limitation of soft set for dealing with the scenarios having disjoint attribute-valued sets corresponding to distinct *** main purpose of this study is to make the existing literature regarding neutrosophic parameterized soft set in line with the need of multi-attribute approximate ***,we conceptualize the neutrosophic parameterized hypersoft sets under the settings of fuzzy set,intuitionistic fuzzy set and neutrosophic set along with some of their elementary properties and set theoretic ***,we propose decision-making-based algorithms with the help of these ***,illustrative examples are presented which depict the structural validity for successful application to the problems involving vagueness and ***,the generalization of the proposed structure is discussed.

关键词： Neutrosophic set hypersoft set neutrosophic hypersoft set parameterized soft set parameterized hypersoft set

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Burden of pediatric influenza A virus infection post swine-flu H1N1pandemic in Egypt

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Asian Pacific Journal of Tropical Medicine 2013年第9期6卷 693-698页

作者： Adel Khattab Malak Shaheen Terez Kamel Amel el Faramay Safaa abd el rahman Dalia Nabil Mohamed Gouda Influenza Advisory Board Egyptian Ministry of Health Chest Department Faculty of MedicineAin Shams University Pediatrics Department Faculty of MedicineAin Shams University Medical Microbiology and Immunology Department Faculty of MedicineAin Shams University

Objectne:To screen children with influenza like illness or with symptoms of acute respiratory tract infections for influenza A virus infection-post swine flu pandemic era-using rapid influenza diagnostic ***:During two year,(2010&2011),1200 children with influenza like illness or acute respiratory tract infections(according to World Health Organization criteria)were *** ages ranged from 2-60 *** aspirates specimens were collected from all children for rapid influenza A diagnostic ***:Influenza A virus rapid test was positive in 47.5%of the children;the majority(89.6%)were presented with lower respiratory tract *** rate and temperature were significantly higher among positive rapid influenza test ***:Influenza A virus infection is still a major cause of respiratory tract infections in Egyptian *** should be considered in all cases with cough and febrile episodes and influenza like symptoms even post swine flu pandemic.

关键词： Influenza A virus Burden Children Influenza like illness Egypt

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A comparative study of liquid and solid inner contact roxatidine acetate ion-selective electrode membranes

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Chinese Chemical Letters 2015年第6期26卷 714-720页

作者： Mohamed K.abd el-rahman Hala E.Zaazaa Samah S.Abbas Badr el-Zeany Zeinab A.el-Sherif Dalia A.el-Haddad Analytical Chemistry Department Faculty of PharmacyCairo University National Organization for Drug Control and Research

A comparative study was conducted using two designs of a roxatidine acetate （ROX）-selective electrode; a conventional liquid inner contact called electrode A and a graphite-coated solid contact called electrode 13. The fabrication of electrodes was based on roxatidine-tetraphenylborate （ROX-TPB） as an ion-association complex in a PVC matrix using different plasticizers. electrode A has a linear dynamic range of 2.2 ×10^-5 mol/L to 1.0 ×10^-2 mol/L, with a Nernstian slope of 54.7 mV/decade and a detection limit of 1.4 ×10^-6 mol/L. electrode B shows linearity over the concentration range of 1.0×10^-6 mol/L to 1.0×10^-2 tool/L, with a Nernstian slope of 51.2 mV/decade and a limit of detection of 1.1×10^7 mol/L which is remarkably improved as a result of diminishing ion fluxes in this solid contact, ion-selective electrode. The proposed sensors display useful analytical characteristics for the determination of ROX in bulk powder and its pharmaceutical formulation. The present electrodes show clear discrimination of ROX from several inorganic, organic ions, sugars, some common drug excipients and the degradation product （3-[3-（1-piperidinyl methyl） phenoxy] propyl amine） of ROX. Furthermore, the proposed electrodes were utilized for the determination of ROX in human plasma, where electrode B covers drug Cmax which indicated its applicability to pharmacokinetic, bioavailability and bioequivalent studies. The results obtained by the proposed electrodes were statistically analyzed and compared with those obtained by a reported HPLC method. No significant difference for either accuracy or precision was observed.

关键词： Comparative study Roxatidine acetate Liquid inner contact electrode Solid contact electrode Degradation product Plasma

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Novel potentiometric application for the determination of amprolium HCl in its single and combined dosage form and in chicken liver

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Chinese Chemical Letters 2017年第3期28卷 612-618页

作者： Mai A. Basha Mohamed K. abd el-rahman Lories I. Bebawy Maissa Y. Salem National Organization of Drug Control and Research (NODCAR) Cairo 29 Egypt Analytical Chemistry Department Faculty of Pharmacy Cairo University Cairo 11562 Egypt

Three novel amprolium HCl（AMP）-selective electrodes were investigated with 2-nitrophenyl octylether as a plasticiser in a polymeric matrix of polyvinyl chloride（PVC）. Sensor I was fabricated using potassium tetrakis（4-chlorophenyl） borate（Tp ClPB） as a cationic exchanger without incorporation of an *** Ⅱ used 2-hydroxy propyl β-cyclodextrin as an ionophore while sensor Ⅲ used p-tert-butylcalix[8]arene as an ionophore. The three proposed sensors showed Nernestian response slopes of 29.2±0.8,29.3±0.6 and 30.2±0.4 m V/decade over the concentration range from 10–6 to 10–2 mol L_（-1）,respectively. The proposed sensors displayed useful analytical characteristics for the determination of AMP in bulk powder, different pharmaceutical formulations, and chicken liver and in the presence of ethopabate. The proposed method was validated according to ICH guidelines for its linearity, accuracy,precision and robustness.

关键词： Amprolium HCl Cationic exchanger Ionophore Ion selective electrodes Ethopabate Chicken liver

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