Search Results - "Sayed, R. A."

Utilization of optimized microwave sintering to produce safe and sustainable one-part alkali-activated materials by Refaat, Moataz, Mohsen, Alaa, Nasr, El-Sayed A. R., Kohail, Mohamed

“…Sodium hydroxide (NaOH) as an alkaline activator presents a vital limitation in the mass production of alkali-activated binders due to its severe effect on…”
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The Effect of Superplasticizers on Eco-friendly Low-Energy One-Part Alkali-Activated Slag by Refaie, M., Mohsen, Alaa, Nasr, El-Sayed A. R., Kohail, Mohamed

“…One-part alkali-activated materials (OP-AAM) have become a promising binder with low carbon and energy requirements associated with superior mechanical and…”
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The relationship between resilience, happiness, and life satisfaction in dental and medical students in Jeddah, Saudi Arabia by Aboalshamat, K, Alsiyud, A, Al-Sayed, R, Alreddadi, R, Faqiehi, S, Almehmadi, S

“…Objectives: Few studies have investigated positive psychological health among medical and dental students. This study aimed to investigate the relationship…”
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The Effect of Structural Stability of Chemical Admixtures on the NaOH Alkali-Activated Slag Properties by Refaie, M., Mohsen, Alaa, Nasr, El-Sayed A. R., Kohail, Mohamed

“…AbstractThe current study aims to construct a synthetic polymer (or family of polymers) with superior plasticizing properties in a highly alkaline medium. An…”
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Glyoxalase‐1 prevents mitochondrial protein modification and enhances lifespan in Caenorhabditis elegans by Morcos, Michael, Du, Xueliang, Pfisterer, Friederike, Hutter, Harald, Sayed, Ahmed A. R., Thornalley, Paul, Ahmed, Naila, Baynes, John, Thorpe, Suzanne, Kukudov, Georgi, Schlotterer, Andreas, Bozorgmehr, Farastuk, El Baki, Randa Abd, Stern, David, Moehrlen, Frank, Ibrahim, Youssef, Oikonomou, Dimitrios, Hamann, Andreas, Becker, Christian, Zeier, Martin, Schwenger, Vedat, Miftari, Nexhat, Humpert, Per, Hammes, Hans‐Peter, Buechler, Markus, Bierhaus, Angelika, Brownlee, Michael, Nawroth, Peter P.

“…Summary Studies of mutations affecting lifespan in Caenorhabditis elegans show that mitochondrial generation of reactive oxygen species (ROS) plays a major…”
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Effect of drowsiness on driving performance variables of commercial vehicle drivers by Mortazavi, A., Eskandarian, A., Sayed, R. A.

“…Driver drowsiness is a major safety concern, especially among commercial vehicle drivers, and is responsible for thousands of accidents and numerous fatalities…”
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External exposure doses due to gamma emitting natural radionuclides in some Egyptian building materials by Moharram, B.M., Suliman, M.N., Zahran, N.F., Shennawy, S.E., El Sayed, A.R.

“…Using of building materials containing naturally occurring radionuclides as 238U, 232Th and 40K and their progeny results in an external exposures of the…”
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Optimal Path Planning Techniques for Oil and Gas Pipelines by Elmorsy, H., Shehata, O. M., Mahmoud, N. A., El-Sayed, A. R.

“…AbstractOptimal design for pipelines layout is gaining further importance because of the increase in demand on oil and gas products. Due to the crucial…”
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Ferulsinaic acid attenuation of diabetic nephropathy by Sayed, Ahmed A. R.

“…Eur J Clin Invest 2012 Background  Different factors are involved in the development of diabetic nephropathy (DN). Oxidative stress and inflammation play an…”
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Life span extension of Caenorhabditis elegans by novel pyridoperimidine derivative by Sayed, Ahmed A. R., El-Shaieb, Kamal M., Mourad, Aboul-Fetouh E.

“…Zwitterions formed from the addition of triphenylphosphine to dialky acetylene-dicarboxylates attack the nucleus of both 1 H -perimidine ( 1 ) and 1 H -benzo[…”
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Performance of lead and iron oxides nanoparticle materials on shielding properties for γ-rays by Moharram, B.M., Nagy, M.E., Shaat, Mohamed K., El Sayed, A.R., Fayiz, Mohammed, Dwidar, Samy A., Dorrah, Mahmoud E.

“…The objectives of this work are preparation and study of properties of some shielding materials to protect public and personnel from the effect of ionizing…”
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Development and application of degradation kinetics of thin layer chromatographic densitometry and conductometric methods for butoconazole nitrate determination by Sayed, R A, Elmasry, M S, Hassan, W S, El-Mammli, M Y, Shalaby, A

“…Two simple methods were developed for determination of butoconazole nitrate (BN). The first developed method was stability-indicating HPTLC-densitometric…”
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Folic acid awareness among women of reproductive age in Cape Town by Sayed, A R, Nixon, J, Bourne, D E

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Arterial wall structural changes in noncirrhotic chronic hepatitis C patients by Sliem, Hamdy A, Salem, Ahmed S, Hussien, Walid M, El Sayed, Hind R.A

“…BACKGROUNDHepatitis C virus (HCV) infection is a major overall health predicament. Patients with HCV infection may progress to hepatic and extrahepatic…”
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Ferulsinaic acid attenuation of advanced glycation end products extends the lifespan of Caenorhabditis elegans by Sayed, Ahmed A. R.

“…Objectives  Ferulsinaic acid is the first member of a new rearranged class of sesquiterpene coumarins of the genus Ferula. The genus Ferula can be used for the…”
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Common mental disorders are not diagnosed commonly in community health centres by Tsepo S. Motsohi, A. A. Isaacs, N. Manga, C. Le Grange, M. Roelofse, P. Milligan, D. A. Hellenberg, A. R. Sayed

“…Background: Very limited published data exist on the spectrum of mental health disorders encountered at primary health care (PHC) facilities in South Africa…”
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Chemical Mutation Induction in vitro Cultured Shoot Tip of Banana Cv. Grand Nain for Resistance some Virus Diseases by Sayed, El, Eman, H., Mahfouze, Sherin A., Shaltout, A.D., El- Dougdo, Kh.A., Sayed, R.A.

“…The chemical mutagens have become important tool to enhance agronomic traits of banana crop. It is being used to produce virus resistance in various…”
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Minimizing energy consumption to produce safe one-part alkali-activated materials by Refaat, Moataz, Mohsen, Alaa, Nasr, El-Sayed A.R., Kohail, Mohamed

“…Recently, alkali-activated binders have emerged as a promising sustainable solution in the construction industry. There is great demand to promote the…”
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Effect of nano-clay de-agglomeration on mechanical properties of concrete by Hamed, Nehal, El-Feky, M.S., Kohail, Mohamed, Nasr, El-Sayed A.R.

“…•Investigate the effect of nano-clay de-agglomeration on concrete properties.•The optimum percentage of dispersed nano-clay particle was recommended.•Studying…”
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Performance of high strength concrete containing recycled rubber by Abdelmonem, Ayman, El-Feky, M.S., Nasr, El-Sayed A.R., Kohail, Mohamed

“…•Waste rubber was used in high strength concrete as an alternative to aggregates.•The hardened properties and impact resistance are discussed.•The compressive…”
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