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Journal of Coastal Life Medicine 2014年第4期 274-280页

作者： amany abdel hamid ismael Eman abdel Razak Mohamed Mostafa Mohamed El-Sheikh Wafaa Hassan Hegazy Oceanography Department Faculty of ScienceAlexandria UniversityAlexandria 21511Egypt Botany Department Faculty of ScienceDamanhuor UniversityEgypt Botany Department Faculty of ScienceTanta UniversityTantaEgypt

Objective:To identify the potentially harmful epiphytic Oscillatoriales species and follow up their distribution along Alexandria ***:Samples were collected bimonthly from April 2009 to February 2010 at three sites along Alexandria *** morphological and molecular analyses were used for identifying the dominant ***:Five species belonging to two families were identified;Oscillatoria acutissima,Oscillatoria nigroviridis,Oscillatoria sp.,Lyngbya majuscule and Phormidium *** cell density ranged from 10^(3)to 126×10^(3)filament g^(-1)fresh weight *** morphological study of the dominant species,Oscillatoria sp.(Oscillatoria sp.W1)showed much similarity with Planktothrix agardhii with no heterocysts and akinetes,while molecular ananlysis(16S rDNA)clustered the species in the same group with Anabaena ***:The 16S rDNA genes are not suitable for identifying Oscillatoriales during the present study and another molecular method should be used instead.

关键词： Harmful algae DNA analysis epiphytes Oscillatoriales Alexandria Egypt

A review of concrete bridge surface defect detection based on deep learning

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Optoelectronics Letters 2024年

作者： LIAO Yanna HUANG Chaoyang abdel-hamid Soliman School of Electronic Engineering， Xi'an University of Posts and Telecommunications School of Digital， Technology， Innovation and Business， Staffordshire University

The detection of surface defects in concrete bridges using deep learning is of significant importance for reducing operational risks， saving maintenance costs， and driving the intelligent transformation of bridge defect detection. In contrast to the subjective and inefficient manual visual inspection， deep learning-based algorithms for concrete defect detection exhibit remarkable advantages， emerging as a focal point in recent research. This paper comprehensively analyzes the research progress of deep learning algorithms in the field of surface defect detection in concrete bridges in recent years. It introduces the early detection methods for surface defects in concrete bridges and the development of deep learning. Subsequently， it provides an overview of deep learning-based concrete bridge surface defect detection research from three aspects: image classification， object detection， and semantic segmentation. The paper summarizes the strengths and weaknesses of existing methods and the challenges they face. Additionally， it analyzes and prospects the development trends of surface defect detection in concrete bridges.

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Hematological Alterations in an Eastern Sudanese Chronic Kidney Disease Patient Population

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Open Journal of Urology 2024年第6期14卷 359-367页

作者： Mohammed Omer Abaker Gibreel Sundus Kamal Ibrahim Wijdan abdel Aziz Hassan Manar Yahia Mahjoub Leyla Mohammed Kheir hamid Hibatellah Majzoub Abbas Nuha Fouzi Mohammed Secretariat of Academic Affairs Port Sudan Ahlia University Port Sudan Sudan Department of Hematology and Immunohematology College of Graduate Studies Port Sudan Ahlia University Port Sudan Sudan

Background: Chronic Kidney Disease (CKD), associated with a slow and progressive loss of kidney function over a period of several years, is an important clinical disaster with an increasing rate of morbidity and mortality especially in the least developed countries. Many hematological parameters are thought to alter dramatically during the course of the disease. These include white blood cells, red blood cells, and platelets. Methods: We tried, retrospectively, to evaluate the peripheral blood hematological alterations in a group of patients undergoing hemodialysis in an eastern Sudan dialysis center to add local medical information. Results: Anemia (Low hemoglobin and hematocrit) was detected in 94% of the patients’ group. Mean Erythrocyte count (3.32vs.4.76 (×109/L)), Hemoglobin concentration (9.4vs.13 (g/dl)), Hematocrit (28.7vs.38.7 (L/L)) and platelet count (296 vs. 238 (×109/L)) were significantly lower in the patients’ group than in the control group (P-values Conclusion: Five out of eight studied parameters (Red cell count, hemoglobin, hematocrit, mean cell hemoglobin concentration, and platelets count) have shown a significant alteration in CKD patients. As the complete blood count (CBC) test is the most utilized test in clinical laboratory practice, these alterations may be considered as early indicators for CKD. Furthermore, all patients with CKD must be routinely checked for these alterations.

关键词： Chronic Kidney Disease Chronic Renal Failure Hematological Alterations CBC Eastern Sudan Hemodialysis

Formation and Biomimetic Deposition of Bone-like Hydroxyapatite on Wollastonite-gypsum Composites

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Journal of Bionic Engineering 2018年第5期15卷 894-906页

作者： Yaser Greish Nuha Attia abdel-hamid Mourad Department of Chemistry College of Science United Arab Emirates University AI Ain UAE Department of Ceramics National Research Centre Cairo Egypt Department of Mechanical Engineering College of Engineering United Arab Emirates University Al Ain UAE Mechanical Design Department Faculty of Engineering at Mataria Helwan University Cairo Egypt

Bone cements are often used for bone repair and fixation. The main objective of formulating a bone cement is to achieve structure and properties similarity to bone. In addition, bioactivity of a bone cement provides a major advantage that helps achieving better binding and interaction with the surrounding tissues. In the current study, gypsum was used as a matrix for a composite that comprises highly crys- talline prestine and acid-treated wollastonite （CaSiO3） fibers. Composites made by mixing their powder precursors with deionized water at room temperature, were investigated for their composition using X-ray diffraction （XRD） and Thermogravimetric Analysis （TGA）, for their microstructure using Scanning Electron Microscopy （SEM）, for their compressive strengths and modulus of elasticity, and for setting time measurements. In addition, cement composites were evaluated for their preliminary bioactivity in a protein-free Simulated Body Fluid （SBF） for up to 14 days. Results show the improvement of mechanical properties and bioactivity of the composites using acid-treated wollastonite fibers. This was attributed to the formation of hydrated silica layer on the surface of the acid-treated fibers which improved the binding with the gypsum matrix and provided nucleating sites for the deposition of bone-like apatite spherolites from SBF media.

关键词： gypsum wollastonite bone cement biomimetic SBF microstructure

Metabolomics for characterization of gender differences in patients infected with dengue virus

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Asian Pacific Journal of Tropical Medicine 2015年第6期8卷 452-457页

作者： Nurul Shahfiza Hasnah Osman Tang T.Hock Khozirah Shaari abdel-hamid Z abdel-hamid Advanced Medical and Dental Institute University Science Malaysia School of Chemical Sciences University Science Malaysia Laboratory of Natural Products Institute of BioscienceUniversiti Putra Malaysia National Research Centre CairoEgypt

Objective:To determine the metabolic response associate with dengue infection based on human gender metabolic differences by means of ~1H ***:The mid-stream urine collected from both male and female patients diagnosed with dengue fever at Penang General Hospital and fourty-three healthy individuals were analyzed with^1H NMR spectroscopy,followed by chemometric multivariate *** signals which highlighted in the OPLS-DA S-plot were further selected and identified using Human Metabolome Database,Chenonix ***:The results pointed out that NMR urine profiling was able to capture human gender metabolic differences that are important for the distinction of classes of individuals of similar physiological conditions;infected with *** differences between dengue infected patients versus healthy individuals and subtle differences in male versus female infected with dengue were found to be related to the metabolism of amino acid and tricarboxylic acid intermediates ***:The ~1H NMR metabolomic investigation combined with appropriate algorithms and pattern recognition procedures,gave an evidence for the existence of distinct metabolic differentiation of individuals,according to their gender,modulates with the infection risk.

关键词： Metabolomics Dengue infection NMR-Spectroscopy

Ejaculatory dysfunction in men with diabetes mellitus

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World Journal of Diabetes 2021年第7期12卷 954-974页

作者： Taymour Mostafa Ibrahim A abdel-hamid Department of Andrology&Sexology Faculty of MedicineCairo UniversityCairo 11562Egypt Department of Andrology Mansoura Faculty of MedicineMansoura 35516Egypt

Diabetes mellitus(DM)is a metabolic disorder that is characterized by elevated blood glucose levels due to absolute or relative insulin deficiency,in the background ofβ-cell dysfunction,insulin resistance,or *** chronic hyperglycemia is linked to long-term damage to blood vessels,nerves,and various ***,the worldwide burden of DM and its complications is in *** sexual dysfunction is one of the famous complications of DM,including abnormal orgasmic/ejaculatory functions,desire/libido,and *** dysfunction encompasses several disorders related to DM and its complications,such as premature ejaculation,anejaculation(AE),delayed ejaculation,retrograde ejaculation(RE),ejaculatory pain,anesthetic ejaculation,decreased ejaculate volume,and decreased force of *** problems linked to ejaculatory dysfunction may extend beyond the poor quality of life in diabetics as both AE and RE are alleged to alter the fertility potential of these ***,although both diabetes patients and their physicians are increasingly aware of diabetic ejaculatory dysfunction,this awareness still lags behind that of other diabetes ***,all these disorders should be looked for thoroughly during the clinical evaluation of diabetic ***,introducing the suitable option and/or maneuvers to treat these disorders should be tailored according to each *** review aimed to explore the most important findings regarding ejaculatory dysfunction in diabetes from pre-clinical and clinical perspectives.

关键词： Diabetes mellitus Ejaculation Anejaculation Retrograde ejaculation Semen

Breeding Enrichment of Genetic Variation of Grain Yield and Its Attributes in Bread Wheat under Drought Stress and Well Irrigation

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Phyton-International Journal of Experimental Botany 2022年第12期91卷 2699-2717页

作者： Dina Swelam abdel hamid Salem Manal Hassan Mohammed Ali Wheat Research Department Agricultural Research CenterGiza12619Egypt Agronomy Department Faculty of AgricultureZagazig UniversityZagazig44519Egypt

Drought stress(DS)is one of the most critical environmental abiotic stresses for wheat production in the arid *** of high-yielding genotypes tolerant to DS can play a significant role in mitigation the negative impacts associated with *** the present study,generation means analysis(GMA)was used to study the performance of two crosses under well irrigation(WI)and deficit irrigation[cross I(Line 44×Shandweel-1)and cross II(Line 20×Sakha 93)].Significant differences were observed for days to heading(DH),days to maturity(DM),plant height(PH),spike length(SL),number of spikes per plant(NS/P),number of grains per spike(NG/S),thousand-grain weight(TGW),grain yield per plant(GY/P),and proline content(PC)in the six populations of the two crosses within each irrigation *** II had early maturity and the highest PC,NS/P,TGW,and GY/P regardless of the irrigation *** I showed positive significant relative heterosis and heterobeltiosis for GY/P under the two irrigation *** inheritance of characters of cross I revealed additive,dominant,and epistatic effects,which varied with trait and *** genetic effects predominated in DH,SL,and PC,while non-additive were found in DM,NS/P,NG/S,and GY/***-sense heritability estimates(h^(2) n)were high for DH and PC,moderate to high for PH and SL,moderate for DM,NG/S,NS/P,and TGW,and low for GY/*** on different drought indices the populations BC_(1),BC_(2),F_(1),and P1 of cross II and BC1 of cross I were more tolerant to drought ***,PC,TGW and DH can be used as selection indicators to improve wheat for drought tolerance in early generations and other yield components traits in late *** second cross(Line 20×Sakha 93)shows promise and is of interest to a drought tolerance breeding program,where wheat breeders can use recombinant breeding strategies to construct desirable drought stress *** and path coefficient revealed that TGW and PC were the main

关键词： Drought generation mean analysis heterosis heritability wheat

Vertical Pod Autoscaling in Kubernetes for Elastic Container Collaborative Framework

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Computers, Materials & Continua 2023年第1期74卷 591-606页

作者： Mushtaq Niazi Sagheer Abbas abdel-hamid Soliman Tahir Alyas Shazia Asif Tauqeer Faiz School of Computer Science National College of Business Administration and EconomicsLahore54000Pakistan School of Digital Technologies and ArtStaffordshire UniversityST42DFUK Department of Computer Science Lahore Garrison UniversityLahore54000Pakistan Higher Colleges of Technology Abu DhabiUAE Department of Enterprise Computing Skyline University CollegeSharjahUAE

Kubernetes is an open-source container management tool which automates container deployment,container load balancing and container(de)scaling,including Horizontal Pod Autoscaler(HPA),Vertical Pod Autoscaler(VPA).HPA enables flawless operation,interactively scaling the number of resource units,or pods,without *** Resource Metrics,such as CPU and memory use of host machines and pods,are monitored by *** Computing has emerged as a platform for individuals beside the corporate *** provides cost-effective infrastructure,platform and software services in a shared *** the other hand,the emergence of industry 4.0 brought new challenges for the adaptability and infusion of cloud *** the global work environment is adapting constituents of industry 4.0 in terms of robotics,artificial intelligence and IoT devices,it is becoming eminent that one emerging challenge is collaborative *** of such autonomous mechanism that can develop,manage and operationalize digital resources like CoBots to perform tasks in a distributed and collaborative cloud environment for optimized utilization of resources,ensuring schedule *** schematics are also linked with Bigdata management produced by large scale industry 4.0 *** use cases and simulation results showed a significant improvement in Pod CPU utilization,latency,and throughput over Kubernetes environment.

关键词： Autoscaling query optimization pods kubernetes container orchestration

Influence of Organo-Metal Interactions on Regeneration of Exhausted Clay Mineral Sorbents in Soil Columns Loaded with Heavy Metals

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Pedosphere 2017年第3期27卷 579-587页

作者： Yasser REFAEY Boris JANSEN Pim DE VOOGT John R.PARSONS abdel-hamid EL-SHATER abdel-Aziz EL-HADDAD Karsten KALBITZ Institute for Biodiversity and Ecosystem Dynamics (IBED) University of Amsterdam Geology Department Faculty of Science Sohag University Soil Resources and Land Use Institute of Soil Science and Site Ecology Faculty of Environmental Sciences Technical University Dresden

Natural clay minerals can play an important role in crude remediation of wastewater polluted with the heavy metals （HMs） Cu, Zn and Ni. The presence and timing of ddition of natural dissolved organic matter （DOM） have a significant effect on the HM removal by clay mineral sorbents. However, the influence of the presence of DOM on the remediation of the used clay mineral sorbents once saturated with HMs is largely unknown. To resolve this, clay mineral-rich soil column of varying composition, loaded （i） with Cu, Zn and Ni only, （ii） first with DOM followed by Cu, Zn and Ni, or （iii） with DOM, Cu, Zn and Ni simultaneously, was used in a set of desorption experiments. The soil columns were leached with 0.001 mol L-1 CaCI2 dissolved in water as control eluent and 0.001 tool L-1 CaC12 dissolved in DOM as treatment eluent. During the preceding loading phase of the sorbent, the timing of DOM addition （sequential or concurrent with HMs） was found to have a significant influence on the subsequent removal of the HMs. In particular when the column was loaded with DOM and HMs simultaneously, largely irreversible co-precipitation took place. Our results indicate that the regeneration potential of clay mineral sorbents in wastewater treatment will be significantly reduced when the treated water is rich in DOM. In contrast, in manured agricultural fields （where HMs enter together with DOM）, HM mobility will be lower than expected from interaction dynamics of HMs and clay minerals.

关键词： dissolved organic matter heavy metal mobility remediation timing of addition wastewater treatment

Synthesis of substituted pyrazolo[1,5-α]pyrimidines

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Chinese Journal of Chemistry 1991年第5期9卷 474-480页

作者： DEEB A.EL-MOBAYED M.ESSAWY A.abdel-hamid A.abdel-hamid ATEFM. Chemistry Department Faculty of Science Zaguazig University Zagazig Egypt Chemistry Department Faculty of Science Zaguazig University Zagazig Egypt

Condensation of 3-amino-4-cyanopyrazole (1) with ethylacetoacetate, ethyl cyanoacetate, diethyl malonate and acetylacetone afforded pyrazolo[1,5-a]pyrimidine derivatives (2-8a). Other compounds (8b-h) of this ring system were obtained by treatment of 1 with arylidenemalononitrile and ethylarylidenecyanoacetate. And the reaction of compound (1) with activated acetylenes yeilded pyrazolo[1,5-a]pyrimidine derivatives (11a-b).

关键词： Pr DMSO 亚砜 Synthesis of substituted pyrazolo[1,5 pyrimidines