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30篇 您的检索式:作者名="Mohamed Farouk"
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1Pathological,immunohistochemical and microbiologicalal analysis of lacrimal sac biopsies in patients with chronic dacrocystitis显示文摘AIM:To analyze cases of obstruction of the nasolacrimal duct which creates a fertile environment for secondary bacterial Infection and can result in dacryocystitis,which is a constant threat to cornea and orbital soft tissue and a potential source of endophthalmitis following intraocular surgery.The majority of obstructions of the lacrimal excretory outflow system are acquired ones occurring in adulthood and involving the distal parts of the system.Acquired obstruction may be primary/idiopathic or secondary to a wide variety of infectious,inflammatory,traumatic,mechanical,toxic or neoplastic causes mimicking idiopathic inflammation.These cases are treated by dacryocystorhinostomy(DCR).METHODS:The present study was conducted to determine the histopathologic,immunohistochemical and current microbiologic characteristics of lacrimal sac specimens in patients undergoing external dacryocystorhinostomy.RESULTS:Non-specific lacrimal sac pathology was present in all 33 cases and 81.8%of the cases showed moderate chronic inflammation with a chronic inflammatory score(CIS)ranging between 4 and 6,whereas 12.12%showed severe inflammatory changes with a CIS of 7.Mild degree of inflammation was seen in6.06%with a CIS of 3.The total prevalence of grampositive,gram-negative,and culture-negative samples were 59.4%,37.5%,and 3%respectively.CONCLUSION:Non-specific chronic inflammation withfibrosis is indeed the most commonly reported histopathological finding in lacrimal sac wall biopsy specimens.Rowayda Mahmoud Amin Faten Aly Hussein Hisham Farouk Idriss Nesrine Fathy Hanafy Dina Mohamed Abdallah 2013International Journal of Ophthalmology(English edition)2013,6,6:7
2Combining Committee-Based Semi-Supervised Learning and Active Learning显示文摘Many data mining applications have a large amount of data but labeling data is usually difficult,expensive,or time consuming,as it requires human experts for annotation.Semi-supervised learning addresses this problem by using unlabeled data together with labeled data in the training process.Co-Training is a popular semi-supervised learning algorithm that has the assumptions that each example is represented by multiple sets of features(views) and these views are sufficient for learning and independent given the class.However,these assumptions are strong and are not satisfied in many real-world domains.In this paper,a single-view variant of Co-Training,called Co-Training by Committee(CoBC) is proposed,in which an ensemble of diverse classifiers is used instead of redundant and independent views.We introduce a new labeling confidence measure for unlabeled examples based on estimating the local accuracy of the committee members on its neighborhood.Then we introduce two new learning algorithms,QBC-then-CoBC and QBC-with-CoBC,which combine the merits of committee-based semi-supervised learning and active learning.The random subspace method is applied on both C4.5 decision trees and 1-nearest neighbor classifiers to construct the diverse ensembles used for semi-supervised learning and active learning.Experiments show that these two combinations can outperform other non committee-based ones.Mohamed Farouk Abdel Hady Friedhelm Schwenker 2010Journal of Computer Science & Technology2010,25,4:5
3Clinical outcomes of transepithelial photorefractive keratectomy versus femtosecond laser assisted keratomileusis for correction of high myopia in South Egyptian population显示文摘AIM: To evaluate the safety and efficacy of transepithelial photorefractive keratectomy(t-PRK) with adjuvant mitomycin C(MMC) versus femtosecond laser assisted keratomileusis(Femto-LASIK) in correction of high myopia.METHODS: Prospective randomized comparative study including 156 eyes of 156 patients with high myopia and a spherical equivalent refraction(SER) <-6.00 D. They were divided randomly into two groups: Group A included 72 eyes treated with t-PRK with adjuvant MMC and Group B included 84 eyes treated with Femto-LASIK. Visual acuity, SER, corneal topography, pachymetry and keratometry were assessed for 12 mo postoperatively.RESULTS: The preoperative mean SER was-8.86±1.81 and-9.25±1.70 D in t-PRK MMC group and Femto-LASIK respectively(P=0.99) which improved to-0.65±0.43 D and-0.69±0.50 D at 12 mo follow up. Mean SER remained stable during the 12 mo of follow-up, with no statistically significant difference between the two groups(P=0.64). In t-PRK MMC group, only six eyes needed retreatment after six months of follow up. And two eyes showed haze(one reversible haze grade 2, while the other had dense irreversible haze grade 4).CONCLUSION: t-PRK MMC provides safe and satisfactory visual outcomes and acceptable risk as Femto-LASIK in patients with high myopia.Amr Mounir Engy Mohamed Mostafa Hatem Ammar Osama Ali Mohammed Alahmady Hamad Alsmman Mahmoud Mohamed Farouk Mohamed Gamal Elghobaier 2020International Journal of Ophthalmology(English edition)2020,13,1:4
4Experimental evaluation of eco-friendly flocculants prepared from date palm rachis显示文摘Sodium carboxymethylcellulose(CMCNa) is an anionic water soluble polyelectrolyte widely used in many industrial sectors including food,textiles,papers,adhesives,paints,pharmaceuticals,cosmetics and mineral processing.CMCNa was produced by chemical modification of cellulose,and represents many advantages:natural,renewable,non-toxic and biodegradable.In this study,different kinds of CMCNa,prepared from an agricultural waste date palm rachis,were tested as eco-friendly flocculants for drinking water treatment and their performances as flocculants in turbidity removal enhancement were assessed.The prepared materials were characterized by the degree of substitution(DS) and polymerisation(DP) .The study of the effect of some experimental parameters on the coagulation-flocculation performance,using the prepared materials combined with aluminium sulphate(as coagulant) ,showed that the best conditions for turbidity treatment were given for pH 8,coagulant dose 20 mg/L,flocculant concentration of 100 mg/L and stirring velocity(during the flocculation step) of 30 r/min.Under the optimum conditions,the turbidity removal using CMCNa,prepared from raw material,was about 95%.A comparison study between the flocculation performance of a commercial anionic flocculant(A100PWG:polyacrylamide) and that of the prepared CMCNa showed that the performance of the waste-based flocculant with a DS of 1.17 and a DP of 480 was 10%better than that achieved by the commercial one.Ramzi Khiari Sonia Dridi-Dhaouadi Chadlia Aguir Mohamed Farouk Mhenni 2010Journal of Environmental Sciences2010,22,10:3
5Application of Prunus amygdalus By-products in Eco-friendly Dyeing of Textile Fabrics显示文摘Natural dyes have become an interesting subject of study because of their better ecological properties in comparison to their synthetic counterparts.This article concerns the dyeing of wool,silk,and polyamide fabrics with natural dyes extracted from almond shells and stems.The developed method of dyeing by these extracts is interesting and very attractive for several reasons:firstly,the extracts used are the black liquor discharged from the industries of delignification,which is a chemical process for removing lignin from agricultural wastes to produce a cellulosic fiber;(ii)these natural dyes are renewable and available in large quantities;(iii)this method is economical;and(iv)lastly,the dyeing performances of the obtained dyed textiles are very promising.The color of each dyed material was investigated in terms of the CIELAB coordinates and their fastness properties measured by washing,rubbing,and light.Ibtissem Moussa Noureddine Baaka Ramzi Khiari Ali Moussa Gérard Mortha Mohamed Farouk Mhenni 2018Journal of Renewable Materials2018,6,1:3
6A Challenging Approach to Improve the Low Affinity of Acrylic Fibres to Be Successfully Dyed with a Bio-Colorant Extracted from Grape Marc显示文摘Acrylic fibres are highly crystalline and non-polar polymers,which makes their dyeing a very difficult step that poses real technical challenges.In order to overcome this concern,it is intended in this paper to modify acrylic fibers by different methods namely cationisation using the Crosscolor DRT then amidoximation using hydroxylamine hydrochloride and ammonium acetate.The resulted samples were dyed then with the bio-colorant extracted from grape marc.The effect of the pretreatment on fibers fine structure using X-ray diffraction and the scanning electron microscope(SEM)images and its correlation with the colour strength of the dyed fabrics was investigated.The dyeing parameters,such as dye bath pH and temperature on the performances of this dyeing process were studied.Good dyeing qualities and new shades varying from brown to grey and dark green have been obtained following process optimization,mordanting and modification of acrylic fibers by the technique of cationisation.Noureddine Baaka Manel Ben Ticha Wafa Haddar Mohamed Farouk Mhenni 2019Journal of Renewable Materials2019,7,3:2
7Incidence, clinical features and para-clinical findings of achalasia in Algeria: Experience of 25 years显示文摘AIM To investigate the incidence of achalasia in Algeria and to determine its clinical and para-clinical profile. To evaluate the impact of continuing medical education(CME) on the incidence of this disease.METHODS From 1990 to 2014, 1256 patients with achalasia were enrolled in this prospective study. A campaign of CME on diagnosis involving different regions of the country was conducted between 1999 and 2003. Annual incidence and prevalence were calculated by relating the number of diagnosed cases to 105 inhabitants. Each patient completed a standardized questionnaire, and underwent upper endoscopy, barium swallow and esophageal manometry. We systematically looked for Allgrove syndrome and familial achalasia.RESULTS The mean annual incidence raised from 0.04(95%CI: 0.028-0.052) during the 1990 s to 0.27/105 inhabitants/year(95%CI: 0.215-0.321) during the 2000 s. The incidence of the disease was two and half times higher in the north and the center compared to the south of the country. One-hundred-and-twenty-nine(10%) were children and 97(7.7%) had Allgrove syndrome. Familial achalasia was noted in 18 different families. Patients had dysphagia(99%), regurgitation(83%), chest pain(51%), heartburn 24.5% and weight loss(70%). The lower esophageal sphincter was hypertensive in 53% and hypotensive in 0.6%.CONCLUSION The mean incidence of achalasia in Algeria is at least 0.27/105 inhabitants. A good impact on the incidence of CME was noted. A gradient of incidence between different regions of the country was found. This variability is probably related to genetic and environmental factors. The discovery of an infantile achalasia must lead to looking for Allgrove syndrome and similar cases in the family.Amar Tebaibia Mohammed Amine Boudjella Djamel Boutarene Farouk Benmediouni Hakim Brahimi Nadia Oumnia 2016World Journal of Gastroenterology2016,22,38:1
8Genetic characterization of two 46,XX males without gonadal ambiguities显示文摘Minor A Mohammed F Farouk A 2008J Assist Reprod Genet2008,25,1112:1
9Semi-supervised learning 显示文摘Mohamed Farouk Abdel Hady Friedhelm Schwenker 2013Handbook on Neural In- formation Processing Intelligent Systems Reference Library2013,49,:1
10Structural Characterization and Antioxidant Activity of Lignin Extracted from Ficus Carica L.显示文摘The most abundant phenolic biopolymer in the biosphere is the lignin.This phenolic biopolymer commonly exists in combination with polysaccharides and other cell wall components.In this study,the solvent system dioxane-water is used to extract lignin,which is considered as unaltered native lignin.The dioxane lignin extracted from fig stems was characterized regarding to its structural feature,quantification of its functional groups,molecular weight,and evaluation of its thermal properties.Purity and molecular weight distribution of the studied lignin indicated that isolated lignin contained a low amount of sugar(c.a.19%)and had a high weight-average molecular weight(10068 g.mol-1).Lignin sample had approximately the same amounts of guaiacyl(G)and p-hydroxyphenyl(H)units with relatively fewer syringyl(S)units.The isolated lignin revealed good antioxidant properties.Therefore,it proved to have a high potential of application in new antioxidants formulations.Ibtissem Moussa Ramzi Khiari Ali Moussa Gérard Mortha Mohamed Farouk Mhenni 2019Journal of Renewable Materials2019,7,4:1
11Impact of reconstruction methods and pathological factors on survival after pancreaticoduodenectomy显示文摘Salah Binziad Ahmed Salem Gamal Amira Farouk Mourad Ahmed Ibrahim Tariq Mohamed Manim 2013South Asian Journal of Cancer2013,,3:1
12Hypolipidemic effect of coffee silver skin in rats fed a high-fat diet显示文摘The present study was conducted to evaluate the hypolipidemic effects of coffee silver skin(CSS)supplementation in rats fed a highfat diet(HFD).A total of 40 albino rats were used in the present study.The groups were as follows:Rats fed a normal diet,N group;high fat diet,HFD group;high fat diet+10%CSS,HFD 10;HFD+15%CSS,HFD 15;HFD+20%CSS,HFD 20;the diets were followed for 8 weeks.Blood samples were collected at the end of the experiment.At the time of sacrifice,the weights of heart,liver,kidneys,epididymal fat and retroperitoneal fat of the experimental rats with respect to body weight were recorded.The lipid parameter of the serum was recorded and liver and kidney function tests were conducted.Finally,a histopathological assay was performed on the liver and kidney tissues of the rats fed the tested diets.The weight gain of the rats fed a HFD supplemented with 10,15 and 20%CSS was∼1.05,1.08 and 1.12 times lower than that of those rats fed HFD,respectively.The incorporation of CSS at a level of 20%reduced the increase in liver,kidney,epididymal fat and retroperitoneal fat weight by 17.84,19.38,47.23 and 18.00%,respectively,compared with HFD alone.HFD administration induced considerable increases in alanine aminotransferase,aspartate aminotransferase and alkaline phosphatase activities compared with the control group.The results also indicated that the HFD-fed rats exhibited increased levels of urea,uric acid and creatinine,by∼26.38,8.40 and 6.75%,respectively,compared with the control rats.With the exception of high-density lipoprotein cholesterol,all lipid fractions increased significantly in rats fed a HFD.The administration of a HFD induced marked pathological changes in the liver and kidneys of the rats.However,the incorporation of various levels of CSS in to a HFD reduced these changes.The results of the present study illustrate that the incorporation of CSS into HFDs reduces the hyperlipidemia effect of these diets.Ayman Mohammed El-Anany Rehab Farouk M.Ali 2018Food Science and Human Wellness2018,7,4:1
13Ilizarov External Fixation and Then Nailing in Management of Infected Nonunions of the Tibial Shaft显示文摘Khaled M. Emara Mohamed Farouk Allam 2008The Journal of Trauma: Injury, Infection, and Critical Care2008,,:1
14Computer aided foundry die-design显示文摘Farouk Shehata Mohamed Abd-Elhamid 2003Materials & Design2003,24,8:1
15Computer aided foundry diedesign显示文摘FAROUK S MOHAMED A 2003Materials and Design2003,,24:1
16Tensile properties and fracture characteristics of ECAP-processed Al and Al-Cu Alloys显示文摘Mohamed Ibrahim Abd El Aal Nahed El Mahallawy Farouk A Shehata 2010Metals Mater Int2010,5,16:1
17THERAPEUTIC EFFECTS OF Allium sativum AND Allium cepa IN Schistosoma mansoni EXPERIMENTAL INFECTION显示文摘Mantawy Mona Mohamed Ali Hanan Farouk Rizk Maha Zaki 2011Revista do Instituto de Medicina Tropical de S茫o Paulo2011,,3:1
18Applicability and efficacy of a model for prevention of perinatal transmission of hepatitis B virus infection:Single center study in Egypt显示文摘AIM:To identify possible maternal risk factors for hepatitis B virus(HBV)acquisition and assess the efficacy of immunoprophylaxis given to infants born to hepatitis B virus surface antigen(HBs Ag)positive mothers.METHODS:Screening of 2000 pregnant females wascarried out using rapid test and confirmed by enzyme immunoassay.A questionnaire consisting of 20 questions about the possible risk factors for acquisition of HBV infection was filled for every pregnant HBs Ag positive female in addition to at least 2 pregnant HBs Ag negative females for each positive case.Infants of HBs Ag positive women were offered passive and active immunoprophylaxis within the 1st 48 h after birth,in addition to 2nd and 3rd doses of HBV vaccine after1 and 6 mo respectively.Infants were tested for HBs Ag and hepatitis B surface antibodies(HBs Ab)at six months of age.RESULTS:HBs Ag was confirmed positive in 1.2%of tested pregnant women.Risk factors significantly associated with HBV positivity were;history of injections(OR=5.65),history of seeking medical advice in a clinic(OR=7.02),history of hospitalization(OR=6.82),history of surgery(OR=4)and family history of hepatitis(OR=3.89)(P<0.05).Dropout rate was 28%for HBs Ag women whose rapid test was not confirmed and could not be reached to provide immunoprophylaxis for thier newborns.Immunoprophylaxis failure was detected in only one newborn(3.7%)who tested positive for HBs Ag at 6 mo of age;and vaccine failure(seronegative to HBs Ab after 4 doses of the vaccine)was detected in another one(3.7%).The success rate of the immunoprophylaxis regimen was 92.6%.CONCLUSION:This pilot study shows that a successful national program for prevention of perinatal transmission of HBV needs to be preceded by an awareness campaign to avoid a high dropout rate.Hanaa M El-Karaksy Lamiaa M Mohsen Doa'a A Saleh Mona S Hamdy Noha A Yassin Mohamed Farouk Mohamed E Salit Mortada H El-Shabrawi 2014World Journal of Gastroenterology2014,20,45:1
19Dorsal foot resurfacing using free anterolateral thigh (ALT) flap in children显示文摘Tarek A. El‐Gammal Amr El‐Sayed Mohamed M. Kotb Waleed Riad Saleh Yasser Farouk Ragheb Omar El‐Refai Mohammed Hassan Ali El Fahar 2012Microsurgery2012,,4:1
20Assessment of Alexandria Container Terminal Efficiency by Applying Performance Indicators显示文摘Mohamed Mustafa Abase El Kalla Reda Farouk Hassan El Shamy 2012Journal of Shipping and Ocean Engineering2012,2,5:0
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