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| 1 | Parameters Influencing Power Generation in Eco-friendly Microbial Fuel Cells显示文摘Pulp and papermaking industries generate high volumes of carbohydrate-rich effluents. Microbial fuel cell(MFC) technology is based on organic materials' consumption and efficient power production. Using a classical two-chamber lab-scale MFC design with an external resistance of2000 W, we investigated the effects of anode chamber biofilm adaptation(ACBA) and cathode chamber redox solutions(CCRS) on the operation efficiency of MFC when treating wastewater. In ACBA studies, biofilm growth activation showed an increase in the power density to 20.48, 35.18, and36.98 mW/m^2 when the acetate feeding concentrations were 3, 6, and 12 g/L,respectively. Improvement by biofilm adhesion on granular activated carbon(GAC) was examined by scanning electron microscopy(SEM). The obtained power density increased to 25.47, 33.42, and 40.39 mW/m^2 when the GAC particles concentrations were 0, 50, and 100 g/L, respectively. The generated power densities were 51.26 and 40.39 mW/m^2 as well as the obtained voltages were 0.41 and 0.72 V when the electrode area increased from 16 to 64 cm^2,respectively. Using the MFC optimized parameters, CCRS studies carried out using five different cathodic redox solutions. The results revealed that the use of manganese dioxide dissolved in hydrochloric acid generated the maximum power density of 112.6 mW/m^2, current density of 0.094 A/m^2, and voltage of1.20 V with a successful organic removal efficiency of 86.0% after 264 h of operation. | Mohamed Said Mahmoud Biao Wen ZhenHua Su ShuJie Fan Yu Zhang | 2018 | Paper And Biomaterials2018,3,1: | 4 |
| 2 | Occult hepatitis B virus infection among Egyptian blood donors显示文摘AIM:To identify blood donors with occult hepatitis B virus(HBV) infection(OBI) to promote safe blood donation.METHODS:Descriptive cross sectional study was conducted on 3167 blood donors negative for hepatitis B surface antigen(HBsAg),hepatitis C antibody(HCV Ab) and human immunodeficiency virus Ab.They were subjected to the detection of alanine aminotransferase(ALT) and aspartate transaminase(AST) and screening for anti-HBV core antibodies(total) by two different techniques;[Monoliza antibodies to hepatitis B core(Anti-HBc) Plus-Bio-Rad] and(ARC-HBc total-ABBOT).Positive samples were subjected to quantitative detection of antibodies to hepatitis B surface(anti-HBs)(ETI-AB-AUK-3,Dia Sorin-Italy).Serum anti-HBs titers > 10 IU/L was considered positive.Quantitative HBV DNA by real time polymerase chain reaction(PCR)(QIAGEN-Germany) with 3.8 IU/mL detection limit was estimated for blood units with negative serum anti-HBs and also for 32 whose anti-HBs serum titers were > 1000 IU/L.Also,265 recipients were included,34 of whom were followed up for 3-6 mo.Recipients were investigated for ALT and AST,HBV serological markers:HBsAg(ETI-MAK-4,Dia Sorin-Italy),anti-HBc,quantitative detection of anti-HBs and HBV-DNA.RESULTS:525/3167(16.6%) of blood units were positive for total anti-HBc,64% of those were antiHBs positive.Confirmation by ARCHITECT anti-HBc assay were carried out for 498/525 anti-HBc positive samples,where 451(90.6%) confirmed positive.Reactivity for anti-HBc was considered confirmed only if two positive results were obtained for each sample,giving an overall prevalence of 451/3167(14.2%) for total anti-HBc.HBV DNA was quantified by real time PCR in 52/303(17.2%) of anti-HBc positive blood donors(viral load range:5 to 3.5 x 105 IU/mL) with a median of 200 IU/mL(mean:1.8 x 104 ± 5.1 x 104 IU/mL).AntiHBc was the only marker in 68.6% of donors.Univariate and multivariate logistic analysis for identifying risk factors associated with anti-HBc and HBV-DNA positivity among blood donors showed that age above thirty and marriage were the most significant risk factors for prediction of anti-HBc positivity with AOR 1.8(1.4-2.4) and 1.4(1.0-1.9) respectively.Other risk factors as gender,history of blood transfusion,diabetes mellitus,frequent injections,tattooing,previous surgery,hospitalization,Bilharziasis or positive family history of HBV or HCV infections were not found to be associated with positive anti-HBc antibodies.Among anti-HBc positive blood donors,age below thirty was the most significant risk factor for prediction of HBV-DNA positivity with AOR 3.8(1.8-7.9).According to HBV-DNA concentration,positive samples were divided in two groups;group one with HBV-DNA ≥ 200 IU/mL(n = 27) and group two with HBV-DNA < 200 IU/mL(n = 26).No significant difference was detected between both groups as regards mean age,gender,liver enzymes or HBV markers.Serological profiles of all followed up blood recipients showed that,all were negative for the studied HBV markers.Also,HBV DNA was not detected among studied recipients,none developed post-transfusion hepatitis(PTH) and the clinical outcome was good.CONCLUSION:OBI is prevalent among blood donors.Nucleic acid amplification/HBV anti core screening should be considered for high risk recipients to eliminate risk of unsafe blood donation. | Zeinab N Said Manal H El Sayed Iman I Salama Enas K Aboel-Magd Magda H Mahmoud Maged El Setouhy Faten Mouftah Manal B Azzab Heidi Goubran Amal Bassili Gamal E Esmat | 2013 | World Journal of Hepatology2013,5,2: | 4 |
| 3 | Living donor liver transplantation for high model for endstage liver disease score:What have we learned?显示文摘AIM: To assess the impact of model for end-stage liver disease(MELD) score on patient survival and morbidity post living donor liver transplantation(LDLT). METHODS: A retrospective study was performed on 80 adult patients who had LDLT from 2011-2013. Nine patients were excluded and 71 patients were divided into two groups; Group 1 included 38 patients with a MELD score < 20, and Group 2 included 33 patients with a MELD score > 20. Comparison between both groups was done regarding operative time, intra-operative blood requirement, intensive care unit(ICU) and hospital stay, infection, and patient survival.RESULTS: Eleven patients died(15.5%); 3/38(7.9%)patients in Group 1 and 8/33(24.2%) in Group 2 with significant difference(P = 0.02). Mean operative time, duration of hospital stay, and ICU stay were similar in both groups. Mean volume of blood transfusion and cell saver re-transfusion were 8 ± 4 units and 1668 ± 202 m L, respectively, in Group 1 in comparison to 10 ± 6 units and 1910 ± 679 m L, respectively, in Group 2 with no significant difference(P = 0.09 and 0.167, respectively). The rates of infection and systemic complications(renal, respiratory, cardiovascular and neurological complications) were similar in both groups. CONCLUSION: A MELD score > 20 may predict mortality after LDLT. | Hany Dabbous Mohammad Sakr Sara Abdelhakam Iman Montasser Mohamed Bahaa Hany Said Mahmoud El-Meteini | 2016 | World Journal of Hepatology2016,8,22: | 2 |
| 4 | HepG2 cells support viral replication and gene expression of hepatitis C virus genotype 4 in vitro显示文摘瞄准:与丙肝的长期的复制建立一个房间文化系统病毒(HCV ) 染色体和病毒的抗原的表示在试管内。方法:HepG2 房间线被孵化与长期的丙肝从一个病人与浆液为它的危险性测试到 HCV。房间和上层清液在文化期间在各种各样的时间点被收获。文化上层清液为它感染天真的房间的能力被测试。存在减(反感觉) 在房间的核心和 E1 抗原的 RNA 海滨,和察觉被 RT-PCR 和免疫学的技术(流动血细胞计数和西方的污点) 分别地检验。结果:细胞内部的 HCV RNA 首先在 d 上被检测 3 在感染以后然后能一致地在至少三个月的一个时期上在房间和上层清液被检测。新鲜房间能从有教养的感染的房间感染上层清液。流动 cytometric 分析证明表面和在房子里使用的细胞内部的 HCV 抗原表示使 polyclonal 成为了抗体(反核心,和 anti-E1 ) 。西方的污点分析证明在分子量的产生免疫性的肽的簇的表示在一个月内在 31 和 45 kDa 之间延长了感染的房间的旧文化而这簇在 uninfected HepG2 房间是无法发现的。结论:HepG2 房间线产生 HCV 感染而且支持它的复制在试管内不仅。HCV 结构的蛋白质的表示能在感染的 HepG2 房间被检测。这些房间也能够流病毒的粒子进接着对 uninfected 房间变得传染的培养基。 | Mostafa K El-Awady Ashraf A Tabll Yasmine S El-Abd Mahmoud M Bahgat Hussein A Shoeb Samar S Youssef Noha G Bader El Din El-Rashdy M Redwan Maha El-Demellawy Moataza H Omran Wael T El-Garf Said A Goueli | 2006 | World Journal of Gastroenterology2006,12,30: | 2 |
| 5 | Physicochemical properties of different types of starch phosphate monoesters 显示文摘 | Mahmoud Z Sitohy Said S KI - Saadony | 2000 | Starch/Starke2000,52,4: | 1 |
| 6 | Physicochemical properties of different types of starch phosphate monoesters显示文摘 | Mahmoud Z Sitohy Said S EI-Saadony | 2000 | Starch/Starke2000,52,4: | 1 |
| 7 | Physic-chemical properties of different types of starch phosphate monoesters 显示文摘 | Mahmoud Z Sitohy Said S EI-Saadany Salah M Labib | 2000 | Starch/Starke2000,52,: | 1 |
| 8 | NIS One-Temperature Dew-Point Generator Operating in the Ranae -50℃ to 0 ℃显示文摘 | Mohamed Gamal Ahmed Doaa Abd El-Gelil Essam El-Din Mahmoud Said Mazen | 2012 | Journal of Physical Science and Application2012,2,9: | 1 |
| 9 | Drought stress tolerance and enhancement of banana plantlets in vitro显示文摘 | Said E M Mahmoud R A Al-akshar R | 2015 | Austin Journal of Biotechnology & Bioengineer- ing2015,2,2: | 1 |
| 10 | Physicochemical properties of different types of starch phosphate monoesters显示文摘 | Mahmoud Z Sitohy Said S Eisaadany Salah Mlabib | 2000 | Starch/Starke2000,52,: | 1 |
| 11 | Influence of a eoflowing ambient stream on a turbulent axisymmetric buoyant jet 显示文摘 | HABLI S MAHJOUB Said N MAHMOUD H | 2008 | Journal of Heat Transfer2008,130,: | 1 |
| 12 | Fludarabine-Based Conditioning Chemotherapy for Allogeneic Hematopoietic Stem Cell Transplantation in Acquired Severe Aplastic Anemia显示文摘 | Hazzaa Al-Zahrani Amr Nassar Fahad Al-Mohareb Fahad Al-Sharif Said Mohamed Khalid Al-Anazi Moosa Patel Walid Rasheed Abu Jafar Mohammed Saleh Mahmoud Bakr Shad Ahmed Khalid Ibrahim Fazal Hussain Naser Elkum Tusneem Elhassan Zubeir Nurgat Naeem Chaudhri Ma | 2011 | Biology of Blood and Marrow Transplantation2011,,5: | 1 |
| 13 | A physical map of chromosome 4Hch from H. chilense containing SSR, STS and EST-SSR molecular markers显示文摘 | Mahmoud Said Adoración Cabrera | 2009 | Euphytica2009,,2: | 1 |
| 14 | Physicoehemical properties of different types of starch phosphate monoesters 显示文摘 | Mahmoud Z Sitohy Said S EI-Saadany Salah M Labib | 2000 | Starch-St~irke2000,52,4: | 1 |
| 15 | Flaxseed Suppressed Prostatic Epithelial Proliferation in a Rat Model of Benign Prostatic Hyperplasia显示文摘 | Mahmoud M Said Nahla S Hassan Michael J Schlicht | 2015 | Journal of Toxicology and Environmental Health Part A2015,78,7: | 1 |
| 16 | Optimizing the conditions for Starch dry phosphorylation with sodium Mono - arid dihydrogen orthophosphate under heat and vacuum 显示文摘 | Mahmoud Z Sitohy Salah M Labib Said S El - Saadany | 2000 | Starch/Starke2000,52,4: | 1 |
| 17 | Optimizing the conditions for starch dry phosphorylation with sodium mono-and dihydrogen orthophosphate under heat and vacuumm,显示文摘 | Mahmoud Z Sitohy Salah M Labib Said S El-Saadany | 2000 | Starch/St(a)rke2000,52,4: | 1 |
| 18 | Analytical and experimental flexural behavior of concrete beams reinforced with glass fiber reinforced polymers bars显示文摘 | Maher A. Adam Mohamed Said Ahmed A. Mahmoud Ali S. Shanour | 2015 | Construction and Building Materials2015,,: | 1 |
| 19 | Optimizing the conditions for Starch dry phosphorylation with sodium Mono- and dihydrogen orthophosphate under heat and vacuum显示文摘 | Mahmoud Z Sitohy Salah M Labib Said S El-Saadany | 2000 | Starch/Starke2000,52,: | 1 |
| 20 | Physicochemical properties of different types of starch phosphate monoesters 显示文摘 | Mahmoud Z Sitohy Said S E1-Saadany Salah M Labib | 2000 | Starch/Starke2000,52,: | 1 |