Publications

Export 6955 results:
Sort by: [ Author  (Asc)] Title Type Year
[A] B C D E F G H I J K L M N O P Q R S T U V W X Y Z   [Show ALL]
A
Abdelbarr, M. H. M. F., Automatic generation of strut-and-tie models using topology optimization, , Cairo, Cairo University, 2012.
Abdelbary, G. A., M. M. Amin, M. Y. Zakaria, and S. A. El Awdan, "Adefovir dipivoxil loaded proliposomal powders with improved hepatoprotective activity: formulation, optimization, pharmacokinetic, and biodistribution studies.", Journal of liposome research, vol. 28, issue 4, pp. 259-274, 2017 Aug 24, 2018. Abstract

The present study aimed to prepare proliposomal formulae for improving the oral bioavailability of adefovir dipivoxil (AD), a nucleoside reverse transcriptase inhibitor effective against hepatitis B virus (HBV). The prepared proliposomal formulae were characterized for entrapment efficiency (E.E.%), vesicle size and in vitro drug release after reconstitution to conventional liposomes. The optimized formula (F9) with a maximum desirability value of 0.858 was selected having E.E.% of 71 ± 3.3% with an average vesicle size of 164.6 ± 5 nm. Moreover, the crystallization of AD within the optimized formula investigated via powder X-ray diffraction (XRD) and differential scanning calorimetry (DSC) confirmed the presence of the drug in an amorphous state within the lipid vesicles with enhanced stability over a storage period of 12 months. Thioacetamide-induced liver damage in rats evidenced by elevated liver enzymes was significantly improved after treatment with the optimum formula. Pharmacokinetic and biodistribution studies of formula F9 showed a higher accumulation of AD in the liver with enhanced bioavailability compared to AD suspension which highlights its potential advantage for an effective treatment of chronic HBV. Hence, proliposomal drug delivery is considered as a better choice for the oral delivery of AD.

Abdelbary, G., and M. Nebsen, "Application of a novel UPLC–MS/MS method for the pharmacokinetic/bioequivalence determination of atorvastatin and ezetimibe in human plasma", Journal of Pharmacy Research, vol. 7, no. 1: Elsevier, pp. 24–32, 2013. Abstract
n/a
Abdelbary, G., and A. Makhlouf, "Adoption of polymeric micelles to enhance the oral bioavailability of dexibuprofen: formulation, in-vitro evaluation and in-vivo pharmacokinetic study in healthy human volunteers", Pharmaceutical Development and TechnologyPharmaceutical Development and Technology, vol. 19, issue 6: Taylor & Francis, pp. 717 - 727, 2014. AbstractWebsite
n/a
Abdelbary, G., and M. Nebsen, "Application of a novel UPLC–MS/MS method for the pharmacokinetic/bioequivalence determination of atorvastatin and ezetimibe in human plasma", Journal of Pharmacy Research, vol. 7, issue 1, pp. 24-32, 2013. Website
Abdelfatah, S., R. Mazloum, and S. Singh, "An Alternative Randomized Response Model Using Two Decks of Cards", Statistica, vol. 71, issue 3, pp. 381-390, 2011.
Abdelfatah, S., R. Mazloum, and S. Singh, "An Alternative Randomized Response Model using two Decks of Cards", Statistica, 2011.
AbdelFattah, H., A. Al-Johani, and M. El-Beltagy, "Analysis of the Stochastic Quarter-Five Spot Problem Using Polynomial Chaos", Molecules, vol. 25, no. 15, 2020. AbstractWebsite

Analysis of fluids in porous media is of great importance in many applications. There are many mathematical models that can be used in the analysis. More realistic models should account for the stochastic variations of the model parameters due to the nature of the porous material and/or the properties of the fluid. In this paper, the standard porous media problem with random permeability is considered. Both the deterministic and stochastic problems are analyzed using the finite volume technique. The solution statistics of the stochastic problem are computed using both Polynomial Chaos Expansion (PCE) and the Karhunen-Loeve (KL) decomposition with an exponential correlation function. The results of both techniques are compared with the Monte Carlo sampling to verify the efficiency. Results have shown that PCE with first order polynomials provides higher accuracy for lower (less than 20%) permeability variance. For higher permeability variance, using higher-order PCE considerably improves the accuracy of the solution. The PCE is also combined with KL decomposition and faster convergence is achieved. The KL-PCE combination should carefully choose the number of KL decomposition terms based on the correlation length of the random permeability. The suggested techniques are successfully applied to the quarter-five spot problem.

Abdelfattah, A., Adel H. Allam, Samuel Wann, Randall C. Thompson, Goma Abdel-Maksoud, I. Badr, Hany Abdel Rahman Amer, Abd el-Halim Nur el-din, Michael I. Miyamoto, Linda Sutherland, et al., "Atherosclerotic cardiovascular disease in Egyptian women: 1570 BCE-2011 CE", International Journal of Cardiology, vol. 167, issue 2, pp. 570-574, 2013.
Abdelfattah, E. A., African Journal of Biological Sciences, , 2022. Abstract
n/a
Abdelgawad, H., B. Abdulhai, S. El-Tantawy, and A. Hadayeghi, "Assessment of self-learning adaptive traffic signal control on congested urban areas: independent versus coordinated perspectives", Canadian Journal of Civil Engineering, vol. 42, issue 6, pp. 353-366, 2015.
Abdelgawad, H., K. Rezaee, S. El-Tantawy, B. Abdulhai, and T. Abdulazim, "Assessment of Adaptive Traffic Signal Control Using Hardware in the Loop Simulation", Intelligent Transportation Systems (ITSC), 2015 IEEE 18th International Conference on: IEEE, pp. 1189–1195, 2015. Abstract
n/a
AbdElgawad, H., W. Abuelsoud, M. M. Y. Madany, S. Selim, G. Zinta, A. S. M. Mousa, and W. N. Hozzein, "Actinomycetes Enrich Soil Rhizosphere and Improve Seed Quality as well as Productivity of Legumes by Boosting Nitrogen Availability and Metabolism.", Biomolecules, vol. 10, issue 12, 2020. Abstract

The use of actinomycetes for improving soil fertility and plant production is an attractive strategy for developing sustainable agricultural systems due to their effectiveness, eco-friendliness, and low production cost. Out of 17 species isolated from the soil rhizosphere of legume crops, 4 bioactive isolates were selected and their impact on 5 legumes: soybean, kidney bean, chickpea, lentil, and pea were evaluated. According to the morphological and molecular identification, these isolates belong to the genus Streptomyces. Here, we showed that these isolates increased soil nutrients and organic matter content and improved soil microbial populations. At the plant level, soil enrichment with actinomycetes increased photosynthetic reactions and eventually increased legume yield. Actinomycetes also increased nitrogen availability in soil and legume tissue and seeds, which induced the activity of key nitrogen metabolizing enzymes, e.g., glutamine synthetase, glutamate synthase, and nitrate reductase. In addition to increased nitrogen-containing amino acids levels, we also report high sugar, organic acids, and fatty acids as well as antioxidant phenolics, mineral, and vitamins levels in actinomycete treated legume seeds, which in turn improved their seed quality. Overall, this study shed the light on the impact of actinomycetes on enhancing the quality and productivity of legume crops by boosting the bioactive primary and secondary metabolites. Moreover, our findings emphasize the positive role of actinomycetes in improving the soil by enriching its microbial population. Therefore, our data reinforce the usage of actinomycetes as biofertilizers to provide sustainable food production and achieve biosafety.

AbdElgawad, H., W. Abuelsoud, M. M. Y. Madany, S. Selim, G. Zinta, A. S. M. Mousa, and W. N. Hozzein, "Actinomycetes enrich soil rhizosphere and improve seed quality as well as productivity of legumes by boosting nitrogen availability and metabolism", Biomolecules, vol. 10, no. 12, pp. 1–19, 2020. Abstract

The use of actinomycetes for improving soil fertility and plant production is an attractive strategy for developing sustainable agricultural systems due to their effectiveness, eco-friendliness, and low production cost. Out of 17 species isolated from the soil rhizosphere of legume crops, 4 bioactive isolates were selected and their impact on 5 legumes: soybean, kidney bean, chickpea, lentil, and pea were evaluated. According to the morphological and molecular identification, these isolates belong to the genus Streptomyces. Here, we showed that these isolates increased soil nutrients and organic matter content and improved soil microbial populations. At the plant level, soil enrichment with actinomycetes increased photosynthetic reactions and eventually increased legume yield. Actinomycetes also increased nitrogen availability in soil and legume tissue and seeds, which induced the activity of key nitrogen metabolizing enzymes, e.g., glutamine synthetase, glutamate synthase, and nitrate reductase. In addition to increased nitrogen-containing amino acids levels, we also report high sugar, organic acids, and fatty acids as well as antioxidant phenolics, mineral, and vitamins levels in actinomycete treated legume seeds, which in turn improved their seed quality. Overall, this study shed the light on the impact of actinomycetes on enhancing the quality and productivity of legume crops by boosting the bioactive primary and secondary metabolites. Moreover, our findings emphasize the positive role of actinomycetes in improving the soil by enriching its microbial population. Therefore, our data reinforce the usage of actinomycetes as biofertilizers to provide sustainable food production and achieve biosafety.

AbdElgawad, H., G. Zinta, W. Abuelsoud, Y. M. Hassan, D. H. M. Alkhalifah, W. N. Hozzein, R. Zrieq, G. T. S. Beemster, and S. Schoenaers, An actinomycete strain of Nocardiopsis lucentensis reduces arsenic toxicity in barley and maize, , vol. 417, pp. 126055, 2021. AbstractWebsite

Accumulation of arsenic in plant tissues poses a substantial threat to global crop yields. The use of plant growth-promoting bacterial strains to mitigate heavy metal toxicity has been illustrated before. However, its potential to reduce plant arsenic uptake and toxicity has not been investigated to date. Here, we describe the identification and characterization of a Nocardiopsis lucentensis strain isolated from heavy metal contaminated soil. Inoculation with this bioactive actinomycete strain decreased arsenic root and shoot bioaccumulation in both C3 and C4 crop species namely barley and maize. Upon arsenate treatment, N. lucentensis S5 stimulated root citric acid production and the plant’s innate detoxification capacity in a species-specific manner. In addition, this specific strain promoted biomass gain, despite substantial tissue arsenic levels. Detoxification (metallothionein, phytochelatin, glutathione-S-transferase levels) was upregulated in arsenate-exposed shoot and roots, and this response was further enhanced upon S5 supplementation, particularly in barley and maize roots. Compared to barley, maize plants were more tolerant to arsenate-induced oxidative stress (less H2O2 and lipid peroxidation levels). However, barley plants invested more in antioxidative capacity induction (ascorbate-glutathione turnover) to mitigate arsenic oxidative stress, which was strongly enhanced by S5. We quantify and mechanistically discuss the physiological and biochemical basis of N. lucentensis-mediated plant biomass recovery on arsenate polluted soils. Our findings substantiate the potential applicability of a bactoremediation strategy to mitigate arsenic-induced yield loss in crops.

Abdelgawad, H., B. Abdulhai, S. El-Tantawy, A. Hadayeghi, and B. Zvaniga, "Assessment of self-learning adaptive traffic signal control on congested urban areas: independent versus coordinated perspectives", Canadian Journal of Civil Engineering, vol. 42, no. 6: NRC Research Press, pp. 353–366, 2015. Abstract
n/a
saeid Abdelgayed, S., B. M. Elmahmoudy, E. -eldeen said Eldenshary, S. A. Nada, and D. F. Mansour, "Antioxidant and Hypo-Ammonemic Activities of Alpha-Lactalbumin and Vitamin C in Thioacetamide-Induced Liver and Brain Damage in Rats.", Journal of Applied Pharmaceutical Science Vol. 5 (09), pp. 072-081, September, 2015, vol. 05, issue 09, pp. 072-081, 2015. antioxidant_and_hypo-ammonemic_activities_of_alpha-lactalbumin_and_vitamin_c_in_thioacetamide-induced_liver_and_brain_damage_in_rats_2015_1.pdf
AbdelGhany, E., G. Elhariri, O. Abdellatif, and E. E. Khalil, "Air Craft Winglet Design and Performance: Cant Angle Effect", ” ,Aerospace and Aeronatical Engineering Conference, Abu Dhabi, 26th February, 2018.
Abdelghany, A. S., N. R. Darwish, and H. A. Hefni, "An Agile Methodology for Ontology Development", International Journal of Intelligent Engineering and Systems (IJIES), ISSN: 2185-3118, vol. 12, issue 2: Intelligent Networks and Sampling Society (INASS), Japan, pp. 170-181, 2019. Abstract
n/a
abeer ahmed abdelhady, abeer, , 2017. lglf-jnb.pdflglf_rb.pdf
Abdelhady, R. H., A. M. Yousef, and M. G. Aly, "Additional Effect of Electrical Stimulation for Women with Stress Urinary Incontinence: Literature Review", fizjoterapia polska, pp. 80-85, 2021.
Abdelhady, M., and H. Sadek, "Archaeometric Aspects of Fatimid Ceramic: From El Fustat, Egypt", The unknown Face of The artwork, Istanbul, Istanbul Kultur University, 2012.
Abdelhafez, A. A., and A. K. Gupta, "Advanced Mixing in High-Speed Flows for Efficient Combustion", Second International Energy 2030 Conference, Abu Dhabi, UAE, November, 2008. Advanced_Mixing_in_High_Speed_Flows_for_Efficient_Combustion.pdf
Tourism