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Glycated Hemoglobin HbA1c:Permittivity Experimental Applications with Some Mathematical Concepts,Temperature and Frequency Variations

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Journal of Renewable Materials 2022年第9期10卷 2335-2354页

作者： soliman Abdalla Sherif Kandil Waleed El-Shirbeeny Fatma Bahabri Department of Physics Faculty of ScienceKing Abdulaziz UniversityJeddahSaudi Arabia Department of Materials Science Institute of Graduate Studies and ResearchAlexandria UniversityAlexandriaEgypt Department of Physics Faculty of ScienceJeddah UniversityJeddahSaudi Arabia

Diabetes disorder turns smoothly to be a global epidemic disorder and the glycated hemoglobin(HbA1c)starts to be an efficient marker of *** dielectric spectroscopy on different human normal-and diabetic-blood samples is used to characterize and to estimate the HbA1c concentration.“dc-”and ac-measurement of the complex conductivity in the temperature range from 280 K up to 320 K,and in the frequency range from one Hz up to 32 MHz have been *** thermal activation energy,ΔEσ,of dc-electric conductivity lies in the range 95 meV<ΔEσ<115 meV;while the thermal activation energy,ΔEτ,of RBCs relaxation time is aboutΔEτ=140 *** experimental data have been modeled by a physical-model and good fittings have been found between calculated and experimental *** effective number of charges,nG,T,is estimated after Cole and Cole *** has found that nG,T increases with both temperature,T,and with the glycation rate *** increase may shed some light on an effective and possible way to treat(and to detect)diabetes disorders via eliminating the excess electric charges produced by glycation *** present work sheds the light on the possible combination of focused ultrasound with magnetic resonance imaging to study the dielectric-thermal variations of glycated-RBCs,which can lead to very precise and non-invasive monitoring of glycation concentration in vivo and in vitro via magnetic resonance-thermometry.

关键词： Glycated-hemoglobin rate thermal characterization red blood cells RBCs relaxation of RBCs dielectric constant mathematical model

Coexisting tubular adenoma with a neuroendocrine carcinoma of colon allowing early surgical intervention and implicating a shared stem cell origin

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World Journal of Gastroenterology 2017年第6期23卷 1106-1112页

作者： Mahmoud L soliman Ashish Tiwari Qing Zhao Department of Pathology and Laboratory Medicine Boston University Medical Center Department of Gastroenterology Boston University Medical Center

High-grade colonic neuroendocrine carcinomas (NECs) are uncommon but extremely aggressive. Their co-existence with tubular adenoma (TA) has rarely been reported. We present a 68-year-old man who was found on routine colonoscopy to have multiple colorectal TAs and an ulcerated lesion in the ascending colon. Microscopically, a poorly-differentiated invasive carcinoma juxtaposed with a TA was identified. Differential diagnosis included a poorly-differentiated adenocarcinoma, medullary carcinoma, high-grade NEC and lymphoma. The immunohistochemical profile showed positive staining for keratins, synaptophysin and chromogranin but negative for LCA, CDX2, CK7, CK20, TTF-1 and PSA, supporting the NEC diagnosis. Upon subsequent laparoscopic right hemicolectomy, the tumor was identified as a 3.0 cm umbilicated and ulcerated mass with an adjacent TA. Both TA and NEC showed positive staining for β-catenin indicating a shared colonic origin. The mitotic counts (77/10 high power fields) and a high proliferation rate (75% by Ki-67) corroborated a high-grade stratification. Mutational analysis indicated a wild-type BRAF and KRAS with mismatch repair proficiency. The AJCC (7th edition) pathologic stage is pT3, pN0, pMx. The patient received adjuvant chemotherapy with cisplatin/etoposides for three cycles and will be followed up for a year to detect recurrence. In conclusion, the co-existence of TA with high grade-NEC in our case allowed early identification and intervention of the otherwise asymptomatic but aggressive tumor. In addition, the finding of a high-grade NEC within a large TA in this case suggests a link between the two lesions and could represent a shared stem cell origin.

关键词： Neuroendocrine carcinoma Tubular adenoma Colorectal Colocalization

Fano Factor in Strained Graphene Nanoribbon Nanodevices

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Chinese Physics Letters 2017年第11期34卷 114-118页

作者： Walid soliman Mina D.Asham Adel H.Phillips Faculty of Engineering Benha UniversityBenhaEgypt Faculty of Engineering AinShams UniversityCairoEgypt

We investigate the Fano factor in a strained armchair and zigzag graphene nanoribbon nanodevice under the effect of ac field in a wide range of frequencies at different temperatures （10？K–70？K）. This nanodevice is modeled as follows： a graphene nanoribbon is connected to two metallic leads. These two metallic leads operate as a source and a drain. The conducting substance is the gate electrode in this three-terminal nanodevice. Another metallic gate is used to govern the electrostatics and the switching of the graphene nanoribbon channel. The substances at the graphene nanoribbon/metal contact are controlled by the back gate. The photon-assisted tunneling probability is deduced by solving the Dirac eigenvalue differential equation in which the Fano factor is expressed in terms of this tunneling probability. The results show that for the investigated nanodevice, the Fano factor decreases as the frequency of the induced ac field increases, while it increases as the temperature increases. In general, the Fano factors for both strained armchair and zigzag graphene nanoribbons are different. This is due to the effect of the uniaxial strain. It is shown that the band structure parameters of graphene nanoribbons at the energy gap, the C–C bond length, the hopping integral, the Fermi energy and the width are modulated by uniaxial strain. This research gives us a promise of the present nanodevice being used for digital nanoelectronics and sensors.

关键词： Fano Factor in Strained Graphene Nanoribbon Nanodevices

A spatiotemporal algebra.in Hadoop for moving objects

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Geo-Spatial Information Science 2018年第2期21卷 102-114页

作者： Mohamed S.Bakli Mahmoud A.Sakr Taysir Hassan A.soliman Faculty of Computers and Information Assiut UniversityAssiutEgypt Faculty of Computer and Information Sciences Ain Shams UniversityCairoEgypt Universitélibre de Bruxelles BruxellesBelgium

Spatiotemporal data represent the real-world objects that move in geographic space over *** enormous numbers of mobile sensors and location tracking devices continuously produce massive amounts of such *** leads to the need for scalable spatiotemporal data management *** systems shall be capable of representing spatiotemporal data in persistent storage and in *** shall also provide a range of query processing operators that may scale out in a cloud ***,very few researches have been conducted to meet this *** paper proposes a Hadoop extension with a spatiotemporal *** algebra.consists of moving object types added as Hadoop native types,and operators on top of *** Hadoop file system has been extended to support parameter passing for files that contain spatiotemporal data,and for operators that can be unary or *** the types and operators are accessible for the MapReduce *** an extension allows users to write Hadoop programs that can perform spatiotemporal *** queries may call more than one operator for different jobs and keep these operators running in *** paper describes the design and implementation of this algebra.and evaluates it using a benchmark that is specific to moving object databases.

关键词： Spatiotemporal algebra Hadoop MapReduce moving objects

Petrogenesis,Geodynamics and Radioactivity of the Granitic Rocks of the Nugrus Weakness Zone,South Eastern Desert,Egypt

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Acta Geologica Sinica(English Edition) 2021年第4期95卷 1183-1198页

作者： soliman ABU ELATTA Abdallah Mahmoud Gehad M.R.MANSOUR Nuclear Materials Authority CairoEgypt.P.O.Box 530 El Maadi

The studied granitic bodies belong to the south Eastern Desert of *** extend in a NNW–SSE trend along the same strike of the Nugrus weakness zone by which they are structurally *** rocks are composed of biotite and biotite-muscovite monzogranites to ***,a higher abundance of Ba and Rb in biotite granites with a relatively low abundance in biotite-muscovite granites as well as the diversity of Th,U,Nb,Ta,Zr,and REE reflects their origin from different sources and geodynamic *** biotite granites are predominantly metaluminous to low peraluminous whereas the biotite-muscovite granites have a peraluminous *** enrichment at the expense of calcium in these rocks reflects a derivation from crustal sources by partial melting in the presence of a volatile *** investigation showed high abundances of U(up to 38 ppm)and Th(up to 26 ppm)in biotite-muscovite granites relative to biotite granites(up to 5 ppm U and 18 ppm Th).Radioactive anomalies furthermore have been recorded in parts of biotite-muscovite granites that were affected by the faults(up to 116 ppm eU and 97 ppm eTh).Consequently,biotite-muscovite granites form a potentially fertile source for uranium mineralization.

关键词： partial melting biotite-muscovite granites peraluminous geodynamic radioactivity Nugrus

Ciprofloxacin adsorption from aqueous solution onto chemically prepared carbon from date palm leaflets

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Journal of Environmental Sciences 2012年第9期24卷 1579-1586页

作者： El-Said Ibrahim El-Shafey Haider Al-Lawati Asmaa soliman Al-Sumri Department of Chemistry College of ScienceSultan Qaboos UniversityP.O.Box 36-Al-Khodh 123MuscatOman

A chemically prepared carbon was synthesized from date palm leaflets via sulphuric acid carbonization at 160℃. Adsorption of ciprofloxacin （CIP） from aqueous solution was investigated in terms of time, pH, concentration, temperature and adsorbent status （wet and dry）. The equilibrium time was found to be 48 hr. The adsorption rate was enhanced by raising the temperature for both adsorbents, with adsorption data fitting a pseudo second-order model well. The activation energy, Ea, was found to be 17 kJ/mol, indicating a diffusion-controlled, physical adsorption process. The maximum adsorption was found at initial pH 6. The wet adsorbent showed faster removal with higher uptake than the dry adsorbent, with increased performance as temperature increased （25--45℃）. The equilibrium data were found to fit the Langmuir model better than the Freundlich model. The thermodynamic parameters showed that the adsorption process is spontaneous and endothermic. The adsorption mechanism is mainly related to cation exchange and hydrogen bonding.

关键词： ciprofloxacin carbon adsorption palm leaflets

Simultaneous effects of magnetic field and space porosity on compressible Maxwell fluid transport induced by a surface acoustic wave in a microchannel

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Chinese Physics B 2013年第12期22卷 323-332页

作者： Khaled S.Mekheimer soliman R.Komy Sara I.Abdelsalam Mathematics & Statistics Department Faculty of Science Taif University Department of Mathematics Faculty of Science (Men) Al-Azhar University Department of Mathematics Faculty of Science Helwan University Basic Science Department Faculty of Engineering The British University in Egypt

Peristaltic motion induced by a surface acoustic wave of a viscous, compressible and electrically conducting Maxwell fluid in a confined parallel-plane microchannel through a porous medium is investigated in the presence of a constant magnetic field. The slip velocity is considered and the problem is discussed only for the free pumping case. A perturbation technique is employed to analyze the problem in terms of a small amplitude ratio. The phenomenon of a “backward flow” is found to exist in the center and at the boundaries of the channel. In the second order approximation, the net axial velocity is calculated for various values of the fluid parameters. Finally, the effects of the parameters of interest on the mean axial velocity, the reversal flow, and the perturbation function are discussed and shown graphically. We find that in the non-Newtonian regime, there is a possibility of a fluid flow in the direction opposite to the propagation of the traveling wave. This work is the most general model of peristalsis created to date with wide-ranging applications in biological, geophysical and industrial fluid dynamics.

关键词： peristaltic flow Maxwell fluid porous medium slip flow microchannel

On Some Modified Methods on Fractional Delay and Nonlinear IntegroDifferential Equation

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Sound & Vibration 2021年第4期55卷 263-279页

作者： A.A.soliman K.R.Raslan A.M.Abdallah Department of Mathematics Faculty of ScienceArish UniversityAL-ArishEgypt Department of Mathematics Faculty of ScienceAL-Azhar UniversityCairo GovernorateEgypt Basic Science Department Higher Technological Institute10th of Ramadan CityEgypt

The fundamental objective of this work is to construct a comparative study of some modified methods with Sumudu transform on fractional delay integro-differential *** existed solution of the equation is very accuratel... 详细信息

关键词： Convergence stability fractional integro-differential equation

Synthesis and reactions of 2-[α-(3,4-disubstituted phenacyl)-p-substituted styryl]-4H-3,1-benzoxazin-4-ones

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Chinese Journal of Chemistry 1996年第5期14卷 437-446页

作者： soliman,Ahmed Youssef ATTIA,Ibrahim Abd El-Mogoud SALEM,Moneer Abdu Ibrahim soliman,El-SayedAhmed GABER,Adel Mohy El-Deen Science Department Faculty of TeachersP.O.Box 2313Al Hasa31982Saudi Arabia Faculty of Engineering Ain Shames UniversityEgypt Chemistry Department Faculty of ScienceAin Shames UniversityEgypt

Conversion ofβ-aroyl propionic acids into furanone derivatives(2)and benzoxazinone derivatives(3)for the study of the reactivity of these nucleus towards different nucleophilic and elec-trophilic reagents.

关键词： Synthesis reaction beuzoxazinone derivatives