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| 1 | Finite element modeling assumptions impact on seismic response demands of MRF-buildings显示文摘Recent seismic events have raised concerns over the safety and vulnerability of reinforced concrete moment resisting frame 'RC-MRF' buildings. The seismic response of such buildings is greatly dependent on the computational tools used and the inherent assumptions in the modelling process. Thus, it is essential to investigate the sensitivity of the response demands to the corresponding modelling assumption. Many parameters and assumptions are justified to generate effective structural finite element(FE) models of buildings to simulate lateral behaviour and evaluate seismic design demands. As such, the present study focuses on the development of reliable FE models with various levels of refinement. The effects of the FE modelling assumptions on the seismic response demands on the design of buildings are investigated. the predictive ability of a FE model is tied to the accuracy of numerical analysis; a numerical analysis is performed for a series of symmetric buildings in active seismic zones. The results of the seismic response demands are presented in a comparative format to confirm drift and strength limits requirements. A proposed model is formulated based on a simplified modeling approach, where the most refined model is used to calibrate the simplified model. | Shehata E Abdel Raheem Ahmed K Abdel Zaher Ahmed MA Taha | 2018 | Earthquake Engineering and Engineering Vibration2018，17，4： | 2 |
| 2 | Circadi- an rhythm of stroke onset during the month of Ramadan 显示文摘 | E1-Mitwalli A Zaher AA E1 Menshawi E | 2010 | Acta Neurol Scand2010，122，2： | 1 |
| 3 | Hyperoxia-induced signaltransduction pathways in pulmonary epithelial cells显示文摘 | Zaher TE Miller E J Morrow DM | 2007 | Free Radic Biol Med2007，42，7： | 1 |
| 4 | Prophylactic effect of green tea polyphenols against liver and kidney injury induced by fenitrothion insecticide显示文摘 | Manal E A Elhalwagy Darwish N S Zaher E M | 2008 | Pesticide Biochemistry and Physiology2008，91，2： | 1 |
| 5 | Practice-based small group learning pro- grams-systematic review显示文摘 | Zaher E Ratnapalan S | 2012 | Can Fam Physician2012，58，6： | 1 |
| 6 | Hyperoxia - induced signal transduction pathways in pulmonary epithelial cells显示文摘 | Zaher TE Miller E J Morrow DM el al | 2007 | Free Radic Biol Med2007，42，7： | 1 |
| 7 | Decrease gene expression of endothelial nitric oxide synthase in newborns with persistent pulmonary hypertension 显示文摘 | VILLANUEVA M E ZAHER F M SVINARACH D M | 1998 | Pediatr Res1998，44，3： | 1 |
| 8 | Relation be- tween anemia and blood levels of Lead, Copper, Zinc and Iron a- mong children显示文摘 | Hegazy AA Zaher MM Abd E | 2010 | BMC Res Notes2010，3，1： | 1 |
| 9 | Auricular reconstruction of helical rim defects: wedge resection revisited 显示文摘 | Radonich MA Zaher M Bisaccia E | 2002 | Dermatol Surg2002，28，1： | 1 |
| 10 | Treatment and post- treatment changes in patients with Class II, Division 1 maloc- clusion after extraction and nonextraction treatment 显示文摘 | Bishara S E Cummins D M Zaher A R | 1997 | Am J Orthod Dentofacial Orthop1997，111，1： | 1 |
| 11 | Factors influencing in vitro establishment and multi- plication stages of peach 显示文摘 | Fouad M M Gomaa A H E I Zaher M H A | 1995 | Acta Horticulturae1995，，409： | 1 |
| 12 | Treatment and posttreatment changes in patients with Class Ⅱ,Division I malocclusion after extraction and nonextraction treatment显示文摘 | BISHARA S E CUMMINS D M ZAHER A R | 1997 | Am J Orthod Dentofac Orthop1997，111，： | 1 |
| 13 | Treatment and posttreatment changes in patients with Class II, Division 1 malocclusion after extraction and nonextraction treatment 显示文摘 | Bishara S E Cummins D M Zaher A R | 1997 | Am J Orthod Dentofacial Orthop1997，111，1： | 1 |
| 14 | Decrease gene expression of endothelial nitric oxide synthase in newborns with persistent pulmonary hypertension 显示文摘 | VILLANUEVA M E ZAHER F M SVINARACH D M | 1998 | Pedlatr Res1998，44，3： | 1 |
| 15 | Dental pulp stem cells: Novel cell-based and cell-free therapy for peripheral nerve repair显示文摘The regeneration of peripheral nerves comprises complicated steps involving a set of cellular and molecular events in distal nerve stumps with axonal sprouting and remyelination. Stem cell isolation and expansion for peripheral nerve repair(PNR) can be achieved using a wide diversity of prenatal and adult tissues, such as bone marrow or brain tissues. The ability to obtain stem cells for cell-based therapy(CBT) is limited due to donor site morbidity and the invasive nature of the harvesting process. Dental pulp stem cells(DPSCs) can be relatively and simply isolated from the dental pulps of permanent teeth, extracted for surgical or orthodontic reasons. DPSCs are of neural crest origin with an outstanding ability to differentiate into multiple cell lineages. They have better potential to differentiate into neural and glial cells than other stem cell sources through the expression and secretion of certain markers and a range of neurotropic factors;thus, they should be considered a good choice for PNR using CBT. In addition,these cells have paracrine effects through the secretion of neurotrophic growth factors and extracellular vesicles, which can enhance axonal growth and remyelination by decreasing the number of dying cells and activating local inhabitant stem cell populations, thereby revitalizing dormant or blocked cells,modulating the immune system and regulating inflammatory responses. The use of DPSC-derived secretomes holds great promise for controllable and manageable therapy for peripheral nerve injury. In this review, up-to-date information about the neurotrophic and neurogenic properties of DPSCs and their secretomes is provided. | Nessma Sultan Laila E Amin Ahmed R Zaher Ben A Scheven Mohammed E Grawish | 2019 | World Journal of Stomatology2019，7，1： | 0 |
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