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R, F. S., S. D. A, S. A. M, A. N. Y, and A. W. E. Abd-El., "Protective effect of Echinochrome against intrahepatic cholestasis induced by alpha-naphthylisothiocyanate in rats", Braz. J. Biol, vol. 80, issue 1, pp. 102-111, 2020.
R, A. H., H. R, A. H. M, and S. N, "Clinical and dermoscopic evaluation of combined (salicylic acid 20% and azelaic acid 20%) versus trichloroacetic acid 25% chemical peel in acne: a RCT.", The Journal of dermatological treatment, 06, 2018. Abstract
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R Abdelmonem, IEI Al-Samadi, R. M. El Nashar, BR Jasti, and M. A. E. - Nabarawi, "Fabrication of nanostructured lipid carriers ocugel for enhancing Loratadine used in treatment of COVID-19 related symptoms: statistical optimization, in-vitro, ex-vivo, and in-vivo studies evaluation", Drug Delivery, vol. 29 (1), , pp. 2868-2882, 2022.
R O Abdel Rahman, H. A. Ibrahim, and N. M. A. Monem, "Long-term performance of zeolite Na AX blend as backfill material in near surface disposal vault", Chemical Engineering Journal, vol. 149, no. 1: Elsevier, pp. 143–152, 2009. Abstract
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R O Abdel Rahman, O. A. A. Moamen, M. Hanafy, and N. M. A. Monem, "Preliminary investigation of zinc transport through zeolite-X barrier: Linear isotherm assumption", Chemical Engineering Journal, vol. 185: Elsevier, pp. 61–70, 2012. Abstract
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R O Abdel Rahman, D. H. A. Z. E. Abidin, and H. Abou-Shady, " Assessment of strontium immobilization in cement–bentonite matrices", Chemical Engineering Journal, vol. 228, pp. 772-780, 2013. AbstractWebsite

The feasibility of immobilizing strontium in cement–bentonite matrices was investigated by studying the effect of mineralogical phase development on mechanical and containment performances. Within this context, the chemical composition and physical properties of bentonite were determined. Different cement–bentonite waste matrices were prepared and analyzed using XRD technique to trace the changes in phases during the curing period. The mechanical performance of these matrices was evaluated by measuring the compressive strength throughout their curing period and the containment performance was determined by conducting long-term static leaching test then the experimental results were checked against some regulatory limits. The results indicated that the presence of strontium and bentonite did not lead to formation of new hydrated phases. The mechanical performance of the matrices is acceptable and the enhanced compressive strength was attributed to the progression in the formation of cement hydrated phases and the pozzolanic reaction between bentonite and lime in cement–bentonite matrices. The speciation data and phase structures analysis indicated that Sr2+ containment in cement might be due to Ca substitution in Ettringite structure and cations exchange on Montmorillonite lattice. The mathematical analysis of the long-term leaching results indicated that strontium leaching resulted from a combination of first order reaction and diffusion mechanisms.

R O Abdel Rahman, H. A. Ibrahim, M. Hanafy, and N. M. A. Monem, "Assessment of synthetic zeolite Na A–X as sorbing barrier for strontium in a radioactive disposal facility", Chemical Engineering Journal, vol. 157, no. 1: Elsevier, pp. 100–112, 2010. Abstract
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R O Abdel Rahman, Z. E. D. H. A. Abidin, and H. Abou-Shady, "Cesium binding and leaching from single and binary contaminant cement–bentonite matrices", Chemical Engineering Journal, vol. 245, pp. 276-287, 2014. AbstractWebsite

Abstract Binding mechanisms and leaching characteristics of cesium from different cement–
bentonite immobilization matrices were investigated. The effect of Sr presence as a
competitive contaminant in the matrices was studied by investigating the binding and
leaching mechanisms in binary contaminant matrices that contains both Cs and Sr solutions.
Binding investigations aimed to trace Cs binding mechanisms by calculating the distribution
of contaminant and major structural elements aqueous complexes in the mixing solution ...

R Ranjan, A Rani, M. H. S. M. G. D. L. P. A., "Analysis of the microbiome: Advantages of whole genome shotgun versus 16S amplicon sequencing", Biochemical and biophysical research communications, vol. 469, no. 4: Academic Press, pp. 967–977, 2016. Abstract
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R S Farag, I A Abd EL Gawad, F. A. A. M. E. A., "Effect of milk processing on the unsaponifiables and phospholipids of milk fractions", Grasas y Aceites,, vol. 38, issue 39, pp. 44, 1987. Abstract
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R Suwa, NT Nguyen, H. Saneoka, R. E. A. Moghaieb, and K. Fujita, "Effect of salinity stress on photosynthesis and vegetative sink in tobacco plants", Soil Science and Plant Nutrition , vol. 52, issue 2, pp. 243-250, 2006.
R., E., and O. O., "Amniotic membrane derived mesenchymal stem cells: Potential therapeutic application", Egyptian journal of laboratory medicine , vol. 26, issue 1, pp. 53-60, 2014.
R., E., E. G. D., H. E., and S. M., SCREENING OF INBORN ERRORS OF METABOLISM AMONG EGYPTIAN PEDIATRIC INTENSIVE CARE UNIT (PICU) PATIENTS BY TANDEM MASS SPECTROMETRY, , 2014. screening_of_inborn_errors_of_metabolism_among_egyptian_pediatric_intensive_care_unit.pdf
R., Z., Aggresive Vertebral Body Haemangioma, : EURORAD Radiological Case Database, 2015. case_12976_en.pdf
R., S. B., R. R.E., A. A. M., and K. N. A., "Neurosonological and cognitive screening for evaluation of systemic sclerosis patients", Clinical Rheumatology, vol. 38, issue 4, pp. 1-12, 2019.
application/pdf iconsakr2019_article_neurosonologicalandcognitivesc.pdf
R., A., "Reply to RE: The burden of Rotavirus gastroenteritis among hospitalized pediatric patients in a tertiary referral hospital in Jeddah.", Ann Saudi Med., vol. 33, issue 6, pp. 635, 2013.
R., S., L. W., and A. A. O., "Endocardial VVIR Pacing in Infants and Small Children Weighing 8 ≤Kg: A Single Center Experience. ", Association for European Paediatric and Congenital Cardiology (AEPC) conference, Rome . Italy, may 2016. p1_7fin.pdf
R., E. - B. W., and G. N., "TMJ Arthroscopy: “Capsular Migration” in Internal Derangement; Is Arthrocentesis a reliable substitute to Arthroscopy?", Egyptian Dental Journal, vol. 63, issue 2, 2017.
R., A. K., A. S. M., and S. B. A., "Stationary Distribution of M=M=1 Queue with Multiple vacations using Matrix Geometric Method", Annual Conference on Statistics, Computer Sciences and Operation Research, Institute of Statistical Studies and Research, Cairo University. Egypt, Dec 2016. boshra_paper1_2.pdf
R., Z., Vascular Loop Syndrome In A Case Presenting With Hemi Facial Spasm, : EURORAD Radiological Case Database, 2015. case_13038_en.pdf
R., S. H. A. B. A. N. A., "The differntial response of sunflower genotypes in calcareous and clay loam soils", 7th Inter. Sunflower conferance , Krasnodar,USSR: Krasnadar Res. Station, USSR, pp. Russian–Abstract, 1976. Abstract
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R., B., A. Gaber, H. Zedan, and M. Mabrook, "New typhoid vaccine using sponge-like reduced protocol: development and evaluation.", Clin Exp Vaccine Res , vol. 12, pp. 70-76, 2023.
R., E. E., "Two incisions side-to-side capsulorrhexis (STSC): A new modification of capsulorrhexis in paediatric cataract surgery ", Cataract and Cornea, vol. 17, pp. 63-66., 2011.
R., M. M., and M. R. M., "Some Weibull Related Models and Bayesian Estimation", International Mathematical Forum, vol. 11, issue 4, pp. 179 – 187, 2016. mandouhimf1-4-2016.pdf
R., E. - B., and E. - B. W. R., "Outcome of dental implants placed with high insertion torque.", Egyptian Dental Journal, vol. 63, issue 1, 2017.
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