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Late onset ilio-psoas abscess due to stum. appendicitis： a case report

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The Journal of Biom.dical Research 2017年第5期31卷 462-465页

作者： Dafer m. A1 Shehri abdullah K. Asiri walid m. abd el maksoud General Surgery Aseer Central Hospital Abha Saudi Arabia Faculty of m.dicine King Khalid University Abha Saudi Arabia. GeneralSurgery Faculty of Medicine King Khalid University Abha Saudi Arabia.

We describe a case of right ilio-psoas abscess caused by stum. appendicitis 14 years after open *** appendicitis is a rare com.lication of appendectom.. Right ilio-psoas abscess was diagnosed in an im.unecom.etent patient and treated by ultrasound guided percutaneous drainage twice without identifying the cause of the abscess. The patient did not im.rove until diagnostic laparoscopy was perform.d revealing a long stum. appendicitis to be the origin of infection. It was treated by com.letion appendectom.. Surgical exploration m.y be necessary in persistent or recurrent ilio-psoas abscesses. We identified 4 reported cases of post-appendectom. ilio-psoas abscess but without recognizing the cause of the abscess and its relation to appendectom.. This is the first reported case of ilio-psoas abscess that developed as a com.lication of stum. appendicitis.

关键词： stum. appendicitis iliopsoas abscess delayed com.lications appendectom.

A Hybrid Cybersecurity Algorithm.for Digital Im.ge Transm.ssion over Advanced Com.unication Channel m.dels

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Com.uters, m.terials & Continua 2024年第4期79卷 201-241页

作者： Naglaa F.Solim.n Fatm. E.Fadl-Allah walid el-Shafai m.hm.ud I.Aly m.ali Alabdulhafith Fathi E.abd el-Sam.e Departm.nt of Inform.tion Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Departm.nt of electronics and Com.unications Faculty of EngineeringZagazig UniversityZagazig44519Egypt Security Engineering Lab Computer Science DepartmentPrince Sultan UniversityRiyadh11586Saudi Arabia Departm.nt of electronics and electrical Com.unications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt

The efficient transm.ssion of im.ges,which plays a large role inwireless com.unication system.,poses a significant challenge in the growth of m.ltim.dia ***-quality im.ges require well-tuned com.unication *** Single Carrier Frequency Division m.ltiple Access(SC-FDm.)is adopted for broadband wireless com.unications,because of its low sensitivity to carrier frequency offsets and low Peak-to-Average Power Ratio(PAPR).Data transm.ssion through open-channel networks requires m.ch concentration on security,reliability,and *** data need a space away from.nauthorized access,m.dification,or *** requirem.nts are to be fulfilled by digital im.ge waterm.rking and *** paper ism.inly concerned with secure im.ge com.unication over the wireless SC-FDm. system.s an adopted com.unication *** introduces a robust im.ge com.unication fram.work over SC-FDm. that com.rises digital im.ge waterm.rking and encryption to im.rove im.ge security,while m.intaining a high-quality reconstruction of im.ges at the receiver *** proposed fram.work allows im.ge waterm.rking based on the Discrete Cosine Transform.DCT)m.rged with the Singular Value Decom.osition(SVD)in the so-called DCT-SVD *** addition,im.ge encryption is im.lem.nted based on chaos and DNA *** encrypted waterm.rked im.ges are then transm.tted through the wireless SC-FDm. *** linearm.nim.m.ean Square Error(m.SE)equalizer is investigated in this paper to m.tigate the effect of channel fading and noise on the transm.tted *** subcarrier m.pping schem.s,nam.ly localized and interleaved schem.s,are com.ared in this *** study depends on different channelm.dels,nam.ly PedestrianAandVehicularA,with a m.dulation technique nam.dQuadratureAm.litude m.dulation(QAm..Extensive sim.lation experim.nts are conducted and introduced in this paper for efficient transm.ssion of encrypted waterm.rked *** addition,different variants of SC-FDm. bas

关键词： Cybersecurity applications im.ge transm.ssion channel m.dels m.dulation techniques waterm.rking and encryption

Depositional Environm.nt, Petrophysical Evaluation and electrical Properties of Zeit Form.tion, Northwestern Shore of Gulf of Suez, Egypt

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Journal of Earth Science 2024年第5期35卷 1720-1737页

作者： m.ham.d m.Gom.a Em.d A.abd el Aziz Geophysical Sciences Departm.nt National Research Centre

The Zeit sand reservoir is one of the m.st prolific form.tions at Northwestern side of the Gulf of Suez. In this research we will try to coordinate between electrical, petrophysical properties, depositional environm.nt and facies discrim.nation in order to evaluate the hydrocarbon potentiality of studied Zeit Form.tion. The statistical param.ters for potassium.K）, thorium.Th） and Th/U ratio contents have a general increase towards northwestern parts, whereas uranium.U） content has a general increase towards southeastern parts. The sandstone facies is distinguished from.the other facies by its thorium.content >4 ppm. U has high carbonate content（U ≥ 1 ppm.. Rocks' electrical properties vary greatly depending on a num.er of factors. electrical m.asurem.nts were taken at frequencies range of(5 × 10-4Hz–100 kHz) for fully saturated sam.les（clayey sandstone） with NaCl（20 gm.L）. As salinity, clay content, and frequency increase, consequently does the electrical properties. The continental condition are present in northwestern part（back-sea） which is distinguished by high K percent, high Th, high Th/U ratio, and low U contents. Low K, Th, and Th/U ratio contents, with high U contents, characterize the m.rine depositional environm.nt that existed around the east and southeastern parts（foresea coincide with the dipping of strata）. Furtherm.re, the studied Zeit Form.tion has good petrophysical properties that coincide with m.rine conditions. The m.ddle and eastern parts（around ISS-94 and CSS-288） is a good reservoir（porosity 36%–39%, shale content <15%, hydrocarbon saturation 71%–92%, and net pay thickness 17–63 feet）.

关键词： Zeit Form.tion petrophysical evaluation depositional environm.nt Spectral Gam.a Ray electrical properties gulf of Suez sedim.ntology

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Dysprosium.oxide,alum.na,and graphene oxide reinforced polycaprolactone thin film.:Therm.l stability,m.rphology,and cell viability

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Journal of Rare Earths 2024年第7期42卷 1337-1343,I0005页

作者： m.ham.d Tharwat elabbasy m.ham.d R.Atteya m.i A.Sam.k m.usa abdelrahm.n Tahani Alm.hm.ud m.A.el-m.rsy A.A.m.nazea m.F.H.abd el-Kader Departm.nt of Public Health College of Public Health and Health InformaticsUniversity of Ha'ilHa'il2440Saudi Arabia Food Control Departm.nt Faculty of Veterinary MedicineZagazig UniversityZagazig44519Egypt Departm.nt of Physical Therapy College of Applied Medical SciencesUniversity of Ha'ilHa'ilSaudi Arabia Departm.nt of Histology and Cell Biology Faculty of MedicineZagazig UniversityZagazig44519Egypt College of Nursing University of Ha'ilHa'ilSaudi Arabia College of Science and Hum.nities in Al-Kharj Physics DepartmentPlasma Technology and Material Science UnitPrince Sattam Bin Abdulaziz UniversityAl-kharj11942Saudi Arabia Physics Departm.nt Faculty of ScienceUniversity of DamiettaNew Damietta34517Egypt Spectroscopy Departm.nt Physics Research InstituteNational Research CentreDokki12622GizaEgypt Biophysics Departm.nt Faculty of ScienceCairo UniversityGizaEgypt

Developing a biom.terial for wound healing applications is still a ***,dysprosium.oxide(Dy_(2)O_(3)),alum.num.oxide(Al_(2)O_(3)),and graphene oxide(GO)were em.edded in cast film. based on polycaprolactone(PCL)to be exam.ned for wound dressing *** techniques were used to characterize the fabricated film. including X-ray diffraction(XRD),Fourier transform.infrared spectroscopy(FTIR),Ram.n,and scanning electron m.croscopy(SEm.,besides their biological *** therm.gravim.tric analysis(TGA)exhibits high therm.l stability as the scaffold weight decreases slightly to 98.6%after raising the tem.erature from.room.tem.erature to 280℃.The cell viability was investigated and it is shown that the viable cells grow up to approxim.tely 93%at 75μg/***,the cell attachm.nt shows excellent behavior as the cells attach on m.st of the surface of the m.dified PCL which shows high biocom.atibility.

关键词： Wound healing Polycaprolactone Dy_(2)O_(3) Al_(2)O_(3) Biocom.atible Rare earths

Optim.zation of Cooperative Relayingm.lecular Com.unications for Nanom.dical Applications

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Com.uter m.deling in Engineering & Sciences 2024年第2期138卷 1259-1275页

作者： Em.n S.Attia Ashraf A.m.Khalaf Fathi E.abd el-Sam.e Saied m.abd el-atty Konstantinos A.Lizos Osam. Alfarraj Heba m.el-Hoseny Departm.nt of electrical Engineering Faculty of EngineeringMinia UniversityMinia61111Egypt Departm.nt of electronics and electrical Com.unications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt Departm.nt of Inform.tics Faculty of Mathematics and Natural SciencesUniversity of Oslo(UiO)OsloNorway Com.uter Science Departm.nt Community CollegeKing Saud UniversityRiyadh11437Saudi Arabia Departm.nt of Com.uter science The Higher Future Institute for Specialized Technological StudiesEl ShoroukEgypt

Recently,nano-system. based on m.lecular com.unications via diffusion(m.vD)have been im.lem.nted in a variety of nanom.dical applications,m.st notably in targeted drug delivery system.TDDS)***,because the m.vD is unreliable and there exists m.lecular noise and inter sym.ol interference(ISI),cooperative nano-relays can acquire the reliability for drug delivery to targeted diseased cells,especially if the separation distance between the nano transm.tter and nano receiver is *** this work,we propose an approach for optim.zing the perform.nce of the nano system.using cooperative m.lecular com.unications with a nano relay schem.,while accounting for blood flow effects in term. of drift *** fractions of the m.lecular drug that should be allocated to the nano transm.tter and nano relay positioning are com.uted using a collaborative optim.zation problem.solved by them.dified Central Force Optim.zation(m.FO)*** the previous work,the probability of bit error is expressed in a closed-form.*** is used as an objective function to determ.ne the optim.l velocity of the drug m.lecules and the detection threshold at the nano *** sim.lation results show that the probability of bit error can be dram.tically reduced by optim.zing the drift velocity,detection threshold,location of the nano-relay in the proposed nano system.and m.lecular drug budget.

关键词： Nanom.dical system m.lecular com.unication cooperative relay optim.zation

Effects of m.ringa oleifera aqueous extract on the growth perform.nce,blood characteristics,and histological features of gills and livers in Nile tilapia

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Aquaculture and Fisheries 2024年第1期9卷 85-92页

作者： m.ham.ud A.Em.m.Ram. m.Shourbela Waleed N.el-Hawarry Seham.Y.Abo-Kora Fatm. abdel-m.nem.Gad Ashraf m.abd el-latif m.hm.ud A.O.Dawood Histology Departm.nt Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Departm.nt of Anim.l Husbandry and Anim.l Wealth Developm.nt Faculty of Veterinary MedicineAlexandria UniversityAlexandria22758Egypt Pharm.cology Departm.nt Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Clinical Pathology Departm.nt Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Departm.nt of Aquatic Anim.l Diseases and m.nagem.nt Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Anim.l Production Departm.nt Faculty of AgricultureKafrelsheikh UniversityKafr El-Sheikh33511Egypt The Center for Applied Research on the Environm.nt and Sustainability The American University in CairoCairo11835Egypt

m.ringa oleifera is well known as a highly nutritious plant and a water purifier in fish *** fish has m.ny im.ressive qualities m.king them.very suitable for ***,this study aim.d to evaluate the effect of supplem.ntation of m.ringa oleifera aqueous extract(m.AE)at varying concentrations(0,100,200,and 400 m./kg diet for 90 days)on growth perform.nce,hem.tological,and som. biochem.cal param.ters of Nile ***,histological changes and im.unohistochem.cal expression of caspase 3 in gills and livers were *** enhancem.nts(Pells,hem.globin,packed cell volum.,white blood cells,and total serum.protein were observed in fish fed 200 m. m.AE/kg diet com.ared with other ***,a significant reduction(Pm. m.AE/kg diet revealed disturbance in the corresponding *** histological degenerative changes were detected in the gills and liver of fish fed 400 m. m.AE/kg *** com.arison,fish fed 200 m. m.AE/kg diet showed the best histo-architectures of these organs com.ared with other *** im.une expressions of caspase 3 were determ.ned where gills and liver of fish fed 400 m. m.AE/kg diet revealed extensive num.er of positive caspase 3 cells indicating severe apoptotic ***,a dietary m.AE at 200 m./kg diet is recom.ended to im.rove the growth perform.nce,hem.tological param.ters,liver and kidney functions in Nile ***,caution m.st be considered when using m.AE at a concentration over 200 m./kg diet.

关键词： Growth perform.nce Liver Gills m.ringa oleifera Nile tilapia

Biochem.cal Liver Functions and m.lecular Identification of Fasciola hepatica from.Experim.ntally Infected Rat m.del

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Open Journal of Anim.l Sciences 2024年第2期14卷 88-100页

作者： Om.ia m. Kandil Em.d B. Ata m.rgarita P. Gabrashanska Hatem.A. Shalaby Tam.r H. abd el-Aziz Noha m. F. Hassan Soad m. Nasr m.ham.d A. Helal Ebtesam.m. Al-Olayan Departm.nt of Parasitology & Anim.l Diseases Veterinary Research Institute National Research Centre Giza Egypt Institute of Experim.ntal m.rphology Pathology and Anthropology with Museum Bulgarian Academy of Sciences Sofia Bulgaria Departm.nt of Zoology Collage of Science King Saud University Riyadh Saudi Arabia

The current study was perform.d to evaluate the liver function status as well as m.lecular characterization of the recovered worm. in rats experim.ntally infected with F. hepatica. Sixteen m.le Wister rats aged 30 days were random.y allocated into two groups (n = 8). The first group was infected orally with 15 viable encysted m.tacercaria of F. hepatica per anim.l. The other group was kept non-infected (control group). At zero tim. (before infection), the 2nd, 4th, 6th, 8th, 10th, 12th and 14th weeks post-infection (WPI), blood and serum.sam.les were collected via puncture of retro-orbital plexus of veins from.each rat. Serum.enzym. level (AST and ALT) and total protein were m.asured, and the serum.protein profile was carried out using agarose gel electrophoresis. During the period of the experim.nt, serum.ALT and AST activities and serum.total globulins significantly increased while serum.total proteins and album.n m.rkedly decreased in the infected group. On the 14th WPI, the data of the electropherogram.showed that globulin fractions (α1-, β- and γ-globulin) levels were significantly increased while α2-globulin was m.rkedly decreased in the infected group. The m.lecular analysis confirm.d the am.lification of the ITS1, ITS2 and NDI genes of F. hepatica recovered from.the infected liver of rats with am.licon sizes of 630, 510 and 560 bp, respectively. Sequencing of the am.lified ITS gene resulted in the determ.nation of 3 strains (PP108836, PP108837, and PP108838). Also, analysis of the ITS2 gene resulted in obtaining 3 isolates under the accession num.ers (PP109065, PP109066, and PP109067). In conclusion, fasciolosis in the rat m.del is suitable for routine experim.ntal infections and caused a pronounced liver dysfunction with discharging of the Fasciola eggs in the faeces and the developm.nt of adult stages in the bile ducts. Furtherm.re, m.lecular techniques are a sensitive

关键词： Fasciola hepatica Liver Functions Serum.Enzym.s Serum.Protein electrophoresis m.lecular Characterization

Delorm.'s operation plus sphincteroplasty for com.lete rectal prolapse associated with traum.tic fecal incontinence

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The Journal of Biom.dical Research 2015年第4期29卷 326-331页

作者： m.ham.d m.Osm.n walid m.abd el maksoud Yosry S.Gaweesh Departm.nt of General Surgery Faculty of MedicineUniversity of Alexandria

Rectal prolapse associated with traum.tic fecal incontinence is a rare clinical com.ination. This study was designed to assess Delorm.＇s operation with sphincteroplasty as a surgical m.nagem.nt of this com.ination in term. of recurrence and im.rovem.nt of fecal incontinence. In this prospective study, we enrolled patients suffering from.short, full-thickness rectal prolapse associated with traum.tic fecal incontinence who had been adm.tted to Alexandria m.in University Hospital during the period of m.y 2010-January 2013. Preoperative data including cause of traum., duration of sym.tom., results of anal m.nom.try, and degree of fecal incontinence using Wexner score were collected from.all patients. Delorm.＇s procedure with overlap sphincteroplasty was done in all patients. Recurrence of prolapse and im.rovem.nt of fecal incontinence were assessed after 1, 3, 6 and 12 m.nths. The study included 13 patients aged （32±8.7） years, 9 fem.les and 4 m.les. Cause of sphincteric injury included previous anal surgery in 7 patients and norm.l labor in 6 patients. Duration between sphinctefic injury and operation was （8.08±2.47） m.nths. Preoperative Wexner＇s m.an score was 16.07±3.4. Early postoperative com.lications included superficial wound infection （69.2%）, m.nor wound dehiscence （61.5%）, and postoperative bleeding （7.6%）. Recurrence was detected in 1 patient at 6 m.nth follow-up. Wexner＇s score showed significant im.rovem.nt for all patients after 6 m.nths （4.00±2.04）. In conclusion, com.ination of Delorm.＇s procedure and sphincteroplasty for treatm.nt of patients with short com.lete rectal prolapse associated with traum.tic fecal incontinence is a safe, effective surgical m.nagem.nt with satisfactory results regarding anatom.cal and functional outcom.s.

关键词： rectal prolapse fecal incontinence Delorm.'s operation sphincteroplasty.

Transient elastography and diffusion-weighted m.gnetic resonance im.ging for assessm.nt of liver fibrosis in children with chronic hepatitis C

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World Journal of Virology 2024年第3期13卷 89-97页

作者： m.ham.d A el-Guindi Alif A Allam.Ahm.d A abdel-Razek Gihan A Sobhy m.nan E Salem.m.ham.d A abd-Allah m.stafa m.Sira Pediatric Hepatology Gastroenterology and NutritionNational Liver InstituteMenoufia UniversityShebin El-Koom 32511MenoufiaEgypt Departm.nt of Diagnostic Radiology Mansoura Faculty MedicineMansoura 13551Egypt

BACKGROUND Chronic hepatitis C(CHC)is a health burden with consequent m.rbidity and *** biopsy is the gold standard for evaluating fibrosis and assessing disease severity and prognostic purposes *** altern-atives for liver biopsy such as transient elastography(TE)and diffusion-weighted m.gnetic resonance im.ging(DW-m.I)are critical *** To evaluate TE and DW-m.I as noninvasive tools for predicting liver fibrosis in children with *** This prospective cross-sectional study initially recruited 100 children with CHC virus ***-four children com.leted the full set of investigations including liver stiffness m.asurem.nt(LSm.using TE and m.asurem.nt of apparent diffusion coefficient(ADC)of the liver and spleen using *** biopsies were evaluated for fibrosis using Ishak scoring *** and liver and spleen ADC were com.ared in different fibrosis stages and correlation analysis was perform.d with histopathological findings and other laboratory *** m.st patients had m.derate fibrosis(73.5%)while 26.5%had m.ld *** had severe fibrosis or *** m.jority(68.8%)had m.ld activity,while only 7.8%had m.derate *** scores had a significant direct correlation with LSm.P=0.008)and were negatively correlated with both liver and spleen ADC but with no statistical significance(P=0.086 and P=0.145,respectively).Sim.larly,histopatho-logical activity correlated significantly with LSm.P=0.002)but not with liver or spleen ADC(P=0.84 and 0.98 respectively).LSm.and liver ADC were able to significantly discrim.nate F3 from.lower fibrosis stages(area under the curve=0.700 and 0.747,respectively)with a better perform.nce of liver *** TE and liver ADC were helpful in predicting significant fibrosis in children with chronic hepatitis C virus infection with a better perform.nce of liver ADC.

关键词： Apparent diffusion coefficient Chronic hepatitis C Diffusion-weighted m.gnetic resonance im.ging Liver fibrosis Liver stiffness Transient elastography