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Comparative study for success rate of vaginal birth after cesarean section following labor induction by two forms of vaginal dinosprostone: A pilot study

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Open Journal of Obstetrics and Gynecology 2014年第1期4卷 33-41页

作者： mahmoud fathy hassan Osama El-Tohamy Assistant Professor in Obstetrics and Gynecology Faculty of Medicine Ain-Shams University Cairo Egypt Lecturer of Obstetrics and Gynecology Faculty of Medicine Ain-Shams University Cairo Egypt

Background: Cesarean delivery has become the most common major surgical procedure in many parts of the world. Induction of labor in women with prior cesarean delivery is an alternative to mitigate the rising cesarean rates. Objectives: To compare the VBAC success rate between two vaginal forms of dinoprostone for labor induction in women with prior cesarean section. Material and Methods: A pilot study was conducted at a large Governmental Hospital, Dhahran, Saudi Arabia, including 200 women with prior cesarean section and planned for labor induction. Participants were randomly allocated into two groups. Group A (n = 100) received dinoprostone 1.5 mg vaginal tablet. Group B (n = 100) received 10 mg dinoprostone sustained release vaginal pessary. Primary outcome was vaginal delivery rate. Secondary outcomes included maternal and neonatal outcomes. Results: The dinoprostone vaginal tablet and dinoprostone vaginal pessary had a comparable vaginal delivery rate (67% and 64%, respectively;p = 0.78). The median patient satisfaction with the birth process was superior in the dinoprostone vaginal pessary group (p = 0.04). Maternal and neonatal outcomes were similar in both groups. Conclusion: Both forms of dinoprostone were effective methods for labor induction in women with prior cesarean section. However, the patient satisfaction with the birth process was in favor of the dinoprostone sustained release vaginal pessary.

关键词： Dinoprostone Induction of Labor Trial of Labor after Cesarean TOLAC Vaginal Birth after Cesarean VBAC

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Treatment success of transobturator tape compared with tension free vaginal tape for stress urinary incontinence at 24 months: A randomized controlled trial

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Open Journal of Obstetrics and Gynecology 2014年第3期4卷 169-175页

作者： mahmoud fathy hassan Osama El-Tohamy Mostafa Kamel Faculty of Medicine Ain-Shams University Cairo Egypt Faculty of Medicine Zagazig University Zagazig Egypt

Objective: To compare the long term efficacy of transobturator Tape (TOT) with tension free vaginal tape (TVT) at 24 months postoperatively. Patients & Methods: 160 women with stress urinary incontinence (SUI) were randomly allocated to either TVT or TOT procedures and reviewed at 24 months after surgery. The primary outcomes were objective cure (a negative cough stress test, and a negative 1-hour pad test), and subjective cure (defined as “very much better” or “much better” improvement in the Patient Global Impression of Improvement scale). The secondary outcomes included incontinence related quality of life (using Urogenital Distress Inventory Questionnaire, and Incontinence Impact Questionnaire), and complications. Results: No statistical difference was reported in objective and subjective cure rates between both groups. Objective cure rate was 85.6% and 81.6% in the TOT and TVT groups respectively (P = 0.55). Subjective cure rate in the TOT and TVT groups were 87% and 83% respectively (P = 0.68). There were no significant differences in postoperative complications and incontinence related quality of life. However, the operating time was significantly shorter in the TOT group compared with the TVT group (22.6 ± 3.9, 27.1 ± 3;respectively, P < 0.001). Conclusion: TOT and TVT procedures were equally efficient and safe for treatment of SUI, with maintenance of high objective and subjective cure rates for 24 months. Longer follow-up is needed to confirm these results.

关键词： Urinary Incontinence Stress Suburethral Slings TOT TVT

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Static Analysis Techniques for Fixing Software Defects in MPI-Based Parallel Programs

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Computers, Materials & Continua 2024年第5期79卷 3139-3173页

作者： Norah Abdullah Al-Johany Sanaa Abdullah Sharaf fathy Elbouraey Eassa Reem Abdulaziz Alnanih Department of Computer Science Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21589Saudi Arabia Software Engineering and Distributed System Research Group King Abdulaziz UniversityJeddah21589Saudi Arabia

The Message Passing Interface (MPI) is a widely accepted standard for parallel computing on distributed ***, MPI implementations can contain defects that impact the reliability and performance of parallelapplications. Detecting and correcting these defects is crucial, yet there is a lack of published models specificallydesigned for correctingMPI defects. To address this, we propose a model for detecting and correcting MPI defects(DC_MPI), which aims to detect and correct defects in various types of MPI communication, including blockingpoint-to-point (BPTP), nonblocking point-to-point (NBPTP), and collective communication (CC). The defectsaddressed by the DC_MPI model include illegal MPI calls, deadlocks (DL), race conditions (RC), and messagemismatches (MM). To assess the effectiveness of the DC_MPI model, we performed experiments on a datasetconsisting of 40 MPI codes. The results indicate that the model achieved a detection rate of 37 out of 40 codes,resulting in an overall detection accuracy of 92.5%. Additionally, the execution duration of the DC_MPI modelranged from 0.81 to 1.36 s. These findings show that the DC_MPI model is useful in detecting and correctingdefects in MPI implementations, thereby enhancing the reliability and performance of parallel applications. TheDC_MPImodel fills an important research gap and provides a valuable tool for improving the quality ofMPI-basedparallel computing systems.

关键词： High-performance computing parallel computing software engineering software defect message passing interface deadlock

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Experimental validation of double-fed induction generator in oscillating water column using circulatory system-based optimization

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CLEAN ENERGY 2024年第2期8卷 127-143页

作者： Elnaghi, Basem E. Ismaiel, Ahmed M. Abdel-Kader, fathy El Sayed Mohammed, Reham H. Abelwhab, M. N. Suez Canal Univ Elect Power & Machine Dept Ismailia Egypt Menoufia Univ Fac Engn Elect Machine & Power Dept Menoufia Egypt Suez Canal Univ Comp & Control Dept Ismailia Egypt

This paper validates the optimal operation for a grid-connected double-fed induction generator (DFIG) in an oscillating water column power plant (OWCPP). This study presents a novel optimization technique called the circulatory system-based optimization (CSBO) approach to develop six adaptive fuzzy logic controllers (AFLCs) with 30 parameters and compare them to chaotic-billiards optimization (C-BO) and genetic algorithm (GA). The proposed controller is also compared with a proportional-integral differential (PID) controller based on a self-adaptive global-best harmony search (SGHS). CSBO-based AFLCs are fully investigated under different scenarios and experimented with using a real-time interface DSP1104. The results of using CSBO-AFLCs revealed a fast time response, fast convergence, less overshoot and minimal error compared with those achieved with C-BO-AFLC, SGHS-PID and GA-AFLC during different case studies. The CSBO-based AFLCs ensure maximum power from the DFIG in an OWCPP and enhance dynamic response with very low errors. The results show that the CSBO shows better power tracking by 25% as compared with C-BO, by 45% when compared with the GA and by 56% when compared with PID. Moreover, the integral absolute errors of six controllers are investigated to demonstrate the feasibility of CSBO-AFLC. The root mean square of the errors of six controllers using CSBO is improved by 68.27% when compared with GA, by 22.57% when compared with C-BO and by 38.42% when compared with PID. These indicators demonstrate the feasibility of CSBO when compared with other algorithms with the same OWCPP. This paper validates the optimal operation of a grid-connected double-fed induction generator in an oscillating water column using a novel optimization technique called the circulatory system-based optimization approach. Experiments using a real-time simulator demonstrate the feasibility of the approach when compared with other algorithms. Graphical Abstract

关键词： circulatory system-based optimization approach adaptive fuzzy logic controller grid-tied oscillating water column power plant maximum power point tracking WAVE ENERGY-CONVERSION DESIGN OPTIMIZATION ALGORITHM CONTROLLER TURBINE

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A new technique of monsplasty as an adjunctive procedure in cases of abdominoplasty:A prospective clinical trial

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Chinese Journal of Plastic and Reconstructive Surgery 2024年第3期6卷 124-129页

作者： Laila Ahmed Aboul Nasr Sherief Zamer Ahmed fathy Elsayed Mohamed Hatem Elsahar Department of Plastic Surgery Faculty of Medicine Kasr Al-AinyCairo UniversityCairo11562Egypt

Background:No standard monsplasty technique has existed until *** various monsplasty methods have been described,they exhibit high complication rates with sparse postoperative *** that used pubic suspension techniques did not describe exact anatomical landmarks for the mons *** study aimed to improve the aesthetic and functional appearance of the pubic region with long-term results for all grades of pubic ptosis or bulging with abdominoplasty and provide exact anatomical points to anchor the mons to the rectus ***:This non-randomized prospective clinical trial included 30 patients with various degrees of abdominal wall laxity between December 2017 and September *** surgical procedure was performed for female patients with pendulous abdomen,pubic ptosis or bulging,body mass index≤35 kg/m^(2),and age 18–60 *** patients were followed for up to one year;patient satisfaction was assessed before and after surgery regarding aesthetic results and impact on outfits,hygiene,and sexual ***:The marginal homogeneity test revealed a statistically significant patient satisfaction rate regarding outfits,sexual function,hygiene,and *** postoperative complications,seroma(one case)was managed by aspiration,and one case of wound dehiscence was managed conservatively with ***:This study recommends a quick and reproducible monsplasty technique with a low complication rate,a technique that helps determine specific anatomical landmarks for anchoring the mons to the rectus *** this technique with abdominal contouring is advisable for optimal aesthetic results and maintained lymphatic drainage in the pubic region.

关键词： Abdominoplasty Mons ptosis Pubic suspension Skin redundancy

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4-Port Octagonal Shaped MIMO Antenna with Low Mutual Coupling for UWB Applications

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Computer Modeling in Engineering & Sciences 2023年第8期136卷 1999-2015页

作者： mahmoud A.Abdelghany Mohamed fathy Abo Sree Arpan Desai Ahmed A.Ibrahim Electrical Engineering Department College of EngineeringPrince Sattam bin Abdulaziz UniversityWadi Addwasir11991Saudi Arabia Electronic and Communication Department Arab Academy for ScienceTechnology and Maritime TransportCairo11865Egypt Department of Electronics and Communication Engineering CSPITCharotar University of Science and Technology(CHARUSAT)Changa388421India Electronics and Communications Engineering Department Minia UniversityEl-Minia61519Egypt

A4-port multiple-input multiple-output(MIMO)antenna exhibiting lowmutual coupling andUWBperformance is *** octagonal-shaped four-antenna elements are connected with a 50microstrip feed line that is arranged rotationally to achieve the orthogonal polarization for improving the MIMO system *** antenna has a wideband impedance bandwidth of 7.5GHz with S11<−10 dB from(103.44%)3.5–11GHz and inter-element isolation higher than 20 *** validation is carried out by verifying the simulated and measured results after fabricating the *** results in the form of omnidirectional radiation patterns,peak gain(≥4 dBi),and Envelope Correlation Coefficient(ECC)(≤0.01)are extracted to validate the suggested antenna ***,time-domain analysis was investigated to demonstrate the operation of the suggested antenna in wideband ***,the simulated and experimental outcomes have almost similar tendenciesmaking the antenna suitable for its use in UWBMIMOapplications.

关键词： MIMO antenna low mutual coupling time domain analysis UWB antenna

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Hydraulic jump basins with wedge-shaped baffles

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2012年第7期13卷 519-525页

作者： Ashraf fathy ELLAYN Institute of Port Coastal and Offshore Engineering Zhejiang University

This laboratory study deals with the hydraulic jump properties for an artificially roughened bed with wedge-shaped baffle blocks. The experiments were conducted for both smooth and rough beds with a Froude number in the range of 3.06≤F1≤10.95 and a relative bed roughness ranging 0.22≤KR≤1.4. The data from this study were compared with those of rectangular baffle blocks. New experimental formulae were developed for determining the sequent depth ratio and the hydraulic jump length in terms of the inflow Froude number and relative bed roughness. Bélanger's jump equation of a rectangular channel was extended to account for the implications of the bed shear stress coefficient attributable to channel bed roughness. It was found that, in comparison with the smooth bed, the wedge-shaped bed roughness reduced the sequent depth of the hydraulic jump by approximately 16.5% to 30% and the hydraulic jump length by approximately 30% to 53%.

关键词： Energy dissipater Hydraulic jump Stilling basins Wedge-shaped bed roughness

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Pathological,immunohistochemical and microbiologicalal analysis of lacrimal sac biopsies in patients with chronic dacrocystitis

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International Journal of Ophthalmology(English edition) 2013年第6期6卷 817-826页

作者： Rowayda mahmoud Amin Faten Aly Hussein Hisham Farouk Idriss Nesrine fathy Hanafy Dina Mohamed Abdallah Department of Ophthalmology Alexandria Faculty of Medicine Department of Microbiology Alexandria Faculty of Medicine Department of Pathology Alexandria Faculty of Medicine

AIM:To analyze cases of obstruction of the nasolacrimal duct which creates a fertile environment for secondary bacterial Infection and can result in dacryocystitis,which is a constant threat to cornea and orbital soft tissue and a potential source of endophthalmitis following intraocular *** majority of obstructions of the lacrimal excretory outflow system are acquired ones occurring in adulthood and involving the distal parts of the *** obstruction may be primary/idiopathic or secondary to a wide variety of infectious,inflammatory,traumatic,mechanical,toxic or neoplastic causes mimicking idiopathic *** cases are treated by dacryocystorhinostomy(DCR).METHODS:The present study was conducted to determine the histopathologic,immunohistochemical and current microbiologic characteristics of lacrimal sac specimens in patients undergoing external ***:Non-specific lacrimal sac pathology was present in all 33 cases and 81.8%of the cases showed moderate chronic inflammation with a chronic inflammatory score(CIS)ranging between 4 and 6,whereas 12.12%showed severe inflammatory changes with a CIS of *** degree of inflammation was seen in6.06%with a CIS of *** total prevalence of grampositive,gram-negative,and culture-negative samples were 59.4%,37.5%,and 3%***:Non-specific chronic inflammation withfibrosis is indeed the most commonly reported histopathological finding in lacrimal sac wall biopsy specimens.

关键词： dacrocystitis lacrimal sac biopsy chronic inflammation lacrimal duct obstruction

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Effects of variable properties on MHD heat and mass transfer flow near a stagnation point towards a stretching sheet in a porous medium with thermal radiation

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Chinese Physics B 2012年第5期21卷 353-363页

作者： A.M.Salem Rania fathy Department of Basic Science Faculty of Computer&InformaticsSuez Canal University Department of Mathematics Faculty of ScienceZagazig University

The effect of variable viscosity and thermal conductivity on steady magnetohydrodynamic（MHD） heat and mass transfer flow of viscous and incompressible fluid near a stagnation point towards a permeable stretching sheet embedded in a porous medium are presented,taking into account thermal radiation and internal heat genberation/*** stretching velocity and the ambient fluid velocity are assumed to vary linearly with the distance from the stagnation *** Rosseland approximation is used to describe the radiative heat flux in the energy *** governing fundamental equations are first transformed into a system of ordinary differential equations using a scaling group of transformations and are solved numerically by using the fourth-order Rung-Kutta method with the shooting technique.A comparison with previously published work has been carried out and the results are found to be in good *** results are analyzed for the effect of different physical parameters,such as the variable viscosity and thermal conductivity,the ratio of free stream velocity to stretching velocity,the magnetic field,the porosity,the radiation and suction/injection on the flow,and the heat and mass transfer *** results indicate that the inclusion of variable viscosity and thermal conductivity into the fluids of light and medium molecular weight is able to change the boundary-layer behavior for all values of the velocity ratio parameter λ except for λ = *** addition,the imposition of fluid suction increases both the rate of heat and mass transfer,whereas fluid injection shows the opposite effect.

关键词： variable viscosity variable thermal conductivity stagnation point

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Performance of beacon safety message dissemination in Vehicular Ad hoc NETworks (VANETs)

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第12期8卷 1990-2004页

作者： YOUSEFI Saleh fathy Mahmood BENSLIMANE Abderrahim Computer Engineering Faculty Iran University of Science and TechnologyNarmak Tehran 16846-13114 Tehran Iran Laboratoire d'Informatique d'Avignon LIA 339 chemin des Meinajaries BP 1228-84911 Avignon cedex 9 France

Currently, there is a growing belief that putting an IEEE 802.11-like radio into road vehicles can help the drivers to travel more safely. Message dissemination protocols are primordial for safety vehicular applications. There are two types of safety messages which may be exchanged between vehicles: alarm and beacon. In this paper we investigate the feasibility of deploying safety applications based on beacon message dissemination through extensive simulation study and pay special attention to the safety requirements. Vehicles are supposed to issue these messages periodically to announce to other vehicles their current situation and use received messages for preventing possible unsafe situations. We evaluate the performance of a single-hop dissemination protocol while taking into account the quality of service (QoS) metrics like delivery rate and delay. We realize that reliability is the main concern in beacon message dissemination. Thus, a new metric named effective range is defined which gives us more accurate facility for evaluating QoS in safety applications specifically. Then, in order to improve the performance, the effects of three parameters including vehicle's transmission range, message transmission's interval time and message payload size are studied. Due to special characteristics of the safety applications, we model the relationship between communication-level QoS and application-level QoS and evaluate them for different classes of safety applications. As a conclusion, the current technology of IEEE 802.11 MAC layer has still some challenges for automatic safety applications but it can provide acceptable QoS to driver assistance safety applications.

关键词： Safety applications Inter-vehicle communications Vehicular Ad hoc NETworks (VANETs) Application level QoS Effective range

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