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Airway Management in ICU Settings [chapter]

Nabil Abdelhamid Shallik, Mamdouh Almustafa, Ahmed Zaghw, Abbas Moustafa
2017 Intensive Care  
Author details Nabil Abdelhamid Shallik 1,2,3,4 *, Mamdouh Almustafa 5 , Ahmed Zaghw 5 and Abbas Moustafa 6, 7 *Address all correspondence to:  ... 
doi:10.5772/intechopen.69166 fatcat:zvsxmnjbmvh4higtfi2dvssusa

Sequence to sequence learning for unconstrained scene text recognition [article]

Ahmed Mamdouh A. Hassanien
2016 arXiv   pre-print
Thanks finally to Samasem Elsayed, Mamdouh Abdelkarim, Mohamed, Abdelkarim, and Hager for being such a wonderful family.  ...  I would like to thank Abubakrelsedik Karali and Ahmed Bassiouny. I remember our discussions fondly and I am blessed to have known them.  ... 
arXiv:1607.06125v1 fatcat:s6heiehojrcujksjfmn7cbcaka

Refining plant energy optimization

Ahmed Y. Ibrahim, Fatma H. Ashour, Mamdouh A. Gadalla
2021 Alexandria Engineering Journal  
A refining plant in the Middle East began official production in 2020 to produce strategic products. After production stabilization, the plant operators decided to implement energy optimization. While the refining plant utilizes a large number of units, only four units were selected for optimization. In addition, two scenarios were studied for optimization. Scenario 1 involves stopping the use of the sour water stripper units (SWS) to save 18.85 ton/h of steam used for stripping. The SWSs strip
more » ... hydrogen sulfide (H 2 S) and ammonia from the sour water of the refinery units. Meanwhile, scenario 2 considered optimizing the steam used in the SWSs and amine regeneration units (ARUs). The ARUs regenerate rich amine using H 2 S from all the refining units to provide the lean amine required for gas sweetening. The overhead acid gas from the SWSs and ARUs feed the sulfur recovery unit (SRU) to prevent emissions from exceeding environmental regulations. The feed to steam ratio of the SWS reboilers was optimized from 0.17 to 0.16 kg steam/kg feed) and from 0.14 to 0.10 kg steam/kg feed for the ARU reboilers. Overall, scenario 2 saved 23.09 ton/h of stripped steam. After a feasibility analysis, scenario 2 was selected for implementation. Considering the average steam cost of 7.6$/ton, scenario 2 saved 1,537,206.38 $/year. In total, five different simulations were conducted in this study, four of which were performed using Aspen HYSYS V.11. Conversely, the other simulation, which simulated the entire SRU plant, used a special sulfur package. In addition, a combined heat and power model was used to evaluate the thermodynamic properties, material, and energy balance equations for the live steam balances. Ó 2021 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering, Alexandria University. This is an open access article under the CC BY-NC-ND license ( licenses/by-nc-nd/4.0/).
doi:10.1016/j.aej.2021.03.064 fatcat:5by5jxt34fcrjowfvtwxk42q3q

Review article on nanoemulsions and nanostructured lipid carriers

samar faheim, ahmed gardouh, ahmed nouh, mamdouh ghorab
2018 Records of Pharmaceutical and Biomedical Sciences  
Lipid nanoparticles, including nanoemulsions (NEs) and nanostructured lipid carriers (NLCs) are colloidal carriers with a lipid matrix that is solid at body temperature. These colloidal carriers have attracted increasing interest for their use in therapeutic and cosmetic applications. The performance of lipid nanoparticle formulations is greatly influenced by their composition and structure. Lipid nanoparticles are generally composed of lipids, surfactants and co-surfactants. The lipid
more » ... used in the production of lipid nanoparticles are usually solid at room temperature. Being well-tolerated in physiological conditions, lipid nanoparticles are typically biocompatible. Liquid lipids, or oils, are specifically used for production of NLCs. In most cases, lipid nanoparticles are produced as dispersions and surface-tailored with surfactants to improve dispersion stability. It was shown that NLCs reveal some advantages for drug therapy over conventional carriers, including increased solubility, the ability to enhance storage stability, improved permeability and bioavailability, reduced adverse effect, prolonged half-life, and tissue-targeted delivery.
doi:10.21608/rpbs.2018.5223.1011 fatcat:visgo2o3ovcajjgz3vgskot3gi


Mohaseb Ahmed Abozied, Mamdouh Sayed Abdelbaqi, Mohamed Ahmed Saifeldeen, Hossameldeen Mohamed, Omar Ahmed Farghal, Abd El Rahman Megahid Ahmed
2020 International journal of civil engineering and technology  
Experimental Investigation of the Tensile Strength of the Hybrid Fibres-Reinforced Polymer (FRP) Mohaseb Ahmed Abozied, Mamdouh Sayed Abdelbaqi, Mohamed Ahmed  ...  Saifeldeen, Hossameldeen Mohamed, Omar Ahmed Farghal, Abd El Rahman Megahid Ahmed  ... 
doi:10.34218/ijciet.11.5.2020.003 fatcat:sphxazhuwzbtxompnvfuhhufga

Guidelines For Surgical Management of Radiation Injuries

Mamdouh Salah, Yasser Taha, Belal al Mobarak, Mohamed Kotb
2012 The Medical Journal of Ahmed Maher Teaching Hospital  
When confronted with a wound that has late radiation changes, the plastic surgeon first step is to rule out the *Plastic Department of Mataryia Teaching Hospital ** Plastic Department of Ahmed Maher Teaching  ... 
doi:10.21608/mjam.2012.16778 fatcat:a6ldufxykjfuha6yrvsun64ufi

Response of sugar beet varieties to plant geometrical distribution

Ahmed Galal, Mohammed El-Noury, Mamdouh Essa, Ahmed Abou-El-Yazied, Salah Abou-Elwafa
2022 Egyptian Sugar Journal (Online)  
Sugar beet is the most important sugar crop that can be grown commercially in a wide variety of temperate regions. The beet sugar industry in the tropical and subtropical regions, which are mostly developing countries is growing as an important component of sugar production. A field experiment was conducted at Delta Sugar Company Research Farm, El-Hamool, Kafr El-Sheikh, Egypt to evaluate the response of sugar beet varieties to inter-and intra-row distances. The analysis of variance (ANOVA)
more » ... aled significant effects of inter-and intra-row distances on all studied traits, i.e., sucrose content (Pol%), Na%, K%, α-amino-N%, quality index (Qz)%, root yield (RY), recoverable sugar (RS)%, recoverable sugar yield (RSY), sugar loss (SL)% and sugar loss yield (SLY) either in one or both growing seasons except for the effect of inter-row planting distances on Na% and loss sugar yield in both growing seasons. The results revealed that increasing the inter-row planting distance from 50 to 60 cm led to a significant reduction in sucrose content, Na%, RY, RS% and RSY. However, increasing the inter-row planting distance from 50 to 60 cm is associated with a significant reduction in the Qz%, RS%, SL% and SLY. Increasing the intra-row planting distances from 10 to 15 cm led to a significant reduction in sucrose%, Na%, Qz% and RS%. Additionally, significant variations in all studied traits were observed among varieties. The interactions between the studies factors and varieties exhibited significant effects on all studied traits. Planting the variety Garrot at 15 and 50 cm intraand inter-row distances produced the highest Qz%, RY and RSY. The lowest SLY resulted from planting the sugar beet variety Husam at 10 and 60 cm intra-and inter-row planting distances. The results of the present study of great importance for a sustainable production of sugar beet in Egypt.
doi:10.21608/esugj.2022.120152.1003 fatcat:tqbzrbrddvcznjphjptyzuszc4

Partial discharge measurements for investigating defected solid dielectrics

Ahmed S. Haiba, Adel A. El-Faraskoury, Ahmed D. El-Koshairy, Mamdouh M. Halawa
2021 TELKOMNIKA (Telecommunication Computing Electronics and Control)  
cavities are the main sources of PD events, insulation degradation in the system TELKOMNIKA Telecommun Comput El Control  Partial discharge measurements for investigating defected solid dielectrics (Ahmed  ...  Error ± (%) 2 717.4 658.6 8.20 4 1295 1236 4.56 6 3163 3213 1.58 8 3984 4074 2.26 TELKOMNIKA Telecommun Comput El Control  Partial discharge measurements for investigating defected solid dielectrics (Ahmed  ... 
doi:10.12928/telkomnika.v19i6.20362 fatcat:dhbh5hcxczbchmr5zubzpiy32y

Percutaneous nephrolithotomy in the supine position: Safety and outcomes in a single-centre experience

Hani H. Nour, Ahmed M. Kamal, Samir E. Ghobashi, Ahmed S. Zayed, Mamdouh M. Rushdy, Ahmed G. El-Baz, Ahmed I. Kamel, Tarek El-Leithy
2013 Arab Journal of Urology  
Objectives: To assess the feasibility of performing percutaneous nephrolithotomy (PCNL) with the patient supine. Although PCNL with the patient prone is the standard technique for treating large (>2 cm) renal stones including staghorn stones, we evaluated the safety and efficacy of supine PCNL for managing large renal stones, with special attention to evaluating the complications. Patients and method: In a prospective study between January 2010 and December 2011, 54 patients with large and
more » ... orn renal stones underwent cystoscopy with a ureteric catheter inserted, followed by puncture of the collecting system while they were supine. Tract dilatation to 30 F was followed by nephroscopy, stone disintegration using pneumatic lithotripsy, and retrieval using a stone forceps. All patients had a nephrostomy tube placed at the end of the procedure. The results were compared with those from recent large series of supine PCNL. Results: The median (range) operative duration was 130 (90-210) min, and the mean (SD) volume of irrigant was 22.2 (3.7) L. One puncture was used to enter the collecting system in 51 renal units (94%), while three units (6%) with a staghorn Abbreviations PCNL, percutaneous nephrolithotomy; PCN, percutaneous nephrostomy; BMI, body mass index stone needed two punctures. The stone clearance rate was 91%, and five patients had an auxiliary procedure. There were complications in 15 patients (28%). All patients were stone-free at a 3-month follow-up. Conclusion: Supine PCNL is technically feasible; it has several advantages to patients, urologists and anaesthesiologists. It gives stone-free rates and a low incidence of organ injury comparable to those in standard prone PCNL.
doi:10.1016/j.aju.2012.12.007 pmid:26579247 pmcid:PMC4442971 fatcat:sd7lpohohbewtmxrlgimqyb6qu

Synthesis, spectroscopic and thermal characterization of quinoxaline metal complexes

Mohamed Ahmed Badawy, Gehad Genidy Mohamed, Mohamed Mohamed Omar, Mamdouh Mohammed Nassar, Ahmed Badr Kamel
2010 European Journal of Chemistry  
KEYWORDS The coordination behaviour of the quinoxaline ligand with N and O donation sites, derived from 3-(2-oxo-2-p-tolylethyl)quinoxalin-2(1H)-one (HL), towards some transition metal ions namely Mn(II), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) are reported. The metal complexes are characterized based on elemental analyses, IR, 1 H NMR, solid reflectance, magnetic moment, molar conductance and thermal analyses (TG, DTG and DTA). The ionization constants of the quinoxaline ligand as well as
more » ... e stability constants of its metal chelates are calculated spectrophotometrically at 25 o C and ionic strength = 0.1 M (1M NaCl). The chelates are found to have octahedral structure. The ligand and its chelates are subjected to thermal analyses and the different activation thermodynamic parameters are calculated from their corresponding DTG curves to throw more light on the nature of changes accompanying the thermal decomposition process of these compounds. The biological activity of the synthesized ligand and its metal complexes also are screened against the desert locust Schistocerca gregaria (Forsk) (Orthoptera-Acrididae) and its adult longevities. They showed remarkable biological activity. Quinoxaline Transition metal complexes Spectroscopy Thermal analyses DTA/TG Biological activity
doi:10.5155/eurjchem.1.4.282-288.113 fatcat:wjr57yaxb5fs3nk7ily5m2exeu


Abla Eledeissi, Mamdouh Ahmed
2017 Egyptian dental journal  
Introduction & Purpose: Frontal sinus fractures pose an interesting and challenging problem, as optimal treatment strategies for their management remain controversial. These fractures are peculiar in that a wrong treatment encompasses not only functional or aesthetical problems but also more dangerous complications. Various techniques have been advocated to repair or remove the frontal sinus that depend on the mechanism and extent of the injury and the status of the nasofrontal duct (NFD).
more » ... ement options include: observation, open reduction and fixation of anterior table, sinus obliteration (with a wide range of materials); and, in more complex situations, sinus cranialization, and endoscopy (not in complex cases but in simple minimally displaced fractures). The purpose of this study was to assess clinically and radiographically frontal sinus obliteration technique utilizing autogenous abdominal fat graft.
doi:10.21608/edj.2017.73913 fatcat:bugqeqyci5a3ra4gbz24j23rbi

Virulence Characteristics of Biofilm-Forming Acinetobacter baumannii in Clinical Isolates Using a Galleria mellonella Model

Mahmoud A. F. Khalil, Fatma A. Ahmed, Ahmed F. Elkhateeb, Eman E. Mahmoud, Mona I. Ahmed, Randa I. Ahmed, Amal Hosni, Saad Alghamdi, Ahmed Kabrah, Anas S. Dablool, Helal F. Hetta, Sawsan S. Moawad (+1 others)
2021 Microorganisms  
A study by El-Sayed-Ahmed et al. reported the widespread presence of bla NDM in Egypt [57] , which has been recently identified worldwide [23, 50, 58] .  ... 
doi:10.3390/microorganisms9112365 pmid:34835490 pmcid:PMC8625498 fatcat:dcesl7h5ingivemjjqmp7tgcxq

Synthesis of Some New Heterocyclic Nitrogen Compounds Starting from Pyromellitic Dianhydride

2012 Oriental Journal of Chemistry  
doi:10.13005/ojc/280403 fatcat:itajse24h5hy5jjmxmu6kic6ie

Asthma Patient Care: The Pharmacist's Perspective

Rana Rasheed Farrag, Mamdouh Ahmed Zaki, Taher El-Naggar, Manal El-Hamamsy
2014 Pharmacology and Pharmacy  
Aim of the Study: To compare effect of asthma care by pharmacist intervention versus routine care on asthma control. Patients and Methods: A 2-month randomised, controlled trial was conducted in outpatient clinics of Ain Shams University Hospitals, Cairo, Egypt. Patients were randomly assigned to receive routine care or a pre-defined pharmacist intervention. This intervention was mainly focused on patient education, improving inhalation technique and medication assessment. Primary outcome was
more » ... e level of asthma control, as assessed by the Asthma Control Questionnaire (ACQ). Results: By the end of the study, intervention patients who received a written action plan significantly improved their ACQ results than routine care group who did not receive a plan (p < 0.0001). Inhalation technique and adherence to controller medication were significantly better in the intervention group. Conclusion: The present study results provide supportive evidence concerning pharmacists' favourable effects on asthma patient care and support pharmacists as valuable members of the health care team.
doi:10.4236/pp.2014.56065 fatcat:k4cqargce5fa3oq66b33bhfj24

Effect of Different Reinforced Type on RC Beams

Amr Ali, Ahmed Hassan, Nasr. Z. Hassan, Hala Mamdouh
2020 Engineering Research Journal  
In the last few decades, Fiber-Reinforced Polymers (FRP) bars have emerged as alternatives to conventional steel reinforcing bars to overcome the corrosion problem found in reinforced concrete structures. Fiber Reinforced polymer (FRP) is a new material, so it is necessary to identify the differences and limitations of their use in the concrete structures in relation to traditional steel reinforcement of concrete structures. Numerous studies have been conducted in order to evaluate the bond
more » ... een FRP bars and concrete. This paper presents the test results of a study on the bond behavior of simply supported beams under flexure, reinforced with FRP bars (BFRP and GFRP) compared to the reference beam with steel reinforcement. The tested beams were made of C 40 concrete and reinforced with bars with 10 mm diameter having and tensile strength evaluated from the tensile tests. The analysis of the beam deflection behavior has been presented. The results show the different character of the load-deflection relationship of FRP reinforced beams compared to traditionally steel reinforced beams.
doi:10.21608/erj.2020.140104 fatcat:biziisvnbzbm3gnbyoowvl2d2q
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