83 hasil untuk "Mahmoud Sayed"
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The Feasibility of Implementing Lean Management Pillars as an Indicator for Enhancing Operational Work Mechanisms: A Field Study on Employees of the Directorate of Youth and Sports in Minia Governorate
The research aims to identify the extent of the possibility of applying the principles of lean management as an indicator for developing work mechanisms by applying them to employees of the Youth and Sports Directorate in Minya Governorate (analytical study). The researcher used the descriptive…
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Applications of Radio Frequency Identification (RFID) systems in libraries: A proposed model for participation in an office consortium project to implement RFID systems in Egyptian libraries.
A research paper presented to the Fifteenth National Conference for Library and Information Specialists in Egypt dealt with three main sections. The first section deals with the definition of RFID systems, their components, how they work, and their applications in the field of libraries, in…
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Different Fractionation in Whole Brain Irradiation for Multiple Brain Metastases
Background: This study compared the efficacy of two commonly used fractionation schedules for palliative whole brain irradiation in patients with brain metastases, and assessed the association of the Radiotherapy Therapy Oncology Group (RTOG) Recursive Partitioning Analysis for brain metastases…
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The Effect of Systemic Steroids on the Incidence of Bone Pain Flare with Palliative Irradiation
Background: A significant number of patients who receive palliative irradiation for painful bone metastases experience pain flare, defined as a distressing transient increase in pain not immediately controlled by additional analgesics. This pain is postulated to be due to edema at the onset of…
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Nurses' Performance Regarding Care of Hepatocellular Carcinoma patients Undergoing Thermal Ablation
Abstract Background: Thermal ablation is one of the radical treatment methods listed in the guidelines for the diagnosis and treatment of HCC. TA is a widely employed procedure to treat both primary and metastatic hepatic tumors. Aim of the study: This study aimed to assess nurses' performance…
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Monitoring of automotive multistage mechanical transmissions using multi - class support vector machine
The need for semi-autonomous or autonomous operations, communication delay, short contact periods as well as the need for survival in harsh environments poses unique challenges to Automotive Mechanical Transmission Systems (AMTS). Predictive health monitoring (PHM) systems are currently gaining in…
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Nonlinear analysis of reinforced concrete buildings with different heights and floor systems
Most civil structures exhibit nonlinear behavior during moderate to severe earthquakes. Consequently, inelastic analysis is needed for seismic design. Several dynamic and static analysis methods are available for the assessment and design of engineering structures. Two of the available methods in…
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Evaluation of the Efficiency of Polymethyl Methacrylate/Hydroxypropyl Methacrylate (MMA/HPMA) Copolymer for the Conservation of Mural Paintings
This study investigates the mural paintings in tomb TT81 of the 18th Dynasty, belonging to Ineni, in the Theban Necropolis, a UNESCO World Heritage Site in Egypt. It examines the composition, structure, and techniques of the mural layers, as well as main deterioration patterns and contributing…
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Study of Materials and Techniques for the Conservation of Two Miniature Paintings
This research includes a study on the conservation of two miniature paintings produced by unknown artists and probably dated to the second half of the 18th century. These paintings are registered at the Museum of Helwan University, Faculty of Applied Arts, Giza, Egypt, No. (A) of 100/6.This…
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S-scheme heterojunction-induced surface plasmon response
In this insight, we highlighted the emergence of a plasmonic response over ZnO/CuInS2 S-scheme heterojunction, which has been recently reported by Meng et al. (Adv. Mater. 2024, 36, 2406460). The surface plasmon resonance (SPR) effect is widely acknowledged in plasmonic metal nanoparticles or…
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Cu-based S-scheme photocatalysts
fixation, and pollutant degradation. This review comprehensively discusses recent progress in Cu-based S-scheme heterojunctions, and highlights their considerable potential for targeted applications in sustainable energy conversion, environmental remediation, and beyond. The fundamentals of…
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Assessment of the Retina and Choroid in Recovered COVID-19 Patients Using Optical Coherence Tomography
Background: The long-term impact of coronavirus disease 2019 [COVID-19] on the posterior segment of the eye remains under investigation. Although ocular surface manifestations have been documented, data regarding structural retinal and choroidal changes are limited.Aim: This study aimed to assess…
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Speckle-tracking Echocardiography as an Early Predictor for LV Dysfunction in Rheumatic Mitral Regurgitation
BACKGROUND: Rheumatic heart disease (RHD) is a significant health concern in developing countries, with mitral regurgitation (MR) being a typical valvular lesion. MR is one of the early indications of RHD. The elevated chronic inflammatory markers indicate chronic low-grade carditis in RHD. AIM…
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Sustained CO2-photoreduction activity and high selectivity over Mn, C-codoped ZnO core-triple shell hollow spheres
Abstract Solar conversion of CO 2 into energy-rich products is one of the sustainable solutions to lessen the global energy shortage and environmental crisis. Pitifully, it is still challenging to attain reliable and affordable CO 2 conversion. Herein, we demonstrate a facile one-pot approach to…
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Comparative study of risk factors in young adults and elderly stroke patients in Sudan
Background: Stroke in Africa is considered as a leading cause of death and disability especially when it occurs in young adults (15–45 years).This study aims to compare stroke in young Sudanese adults and elderly patients regarding imaging finding, the pattern of presentation, investigations and…
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Harmonic resonance overvoltage due to main transformer energization in large wind farms, Zafarana, Egypt
When a large power transformer is energized, a high magnitude inrush current may result in harmonic resonance overvoltage (HRO), if the system has resonance phenomenon. Such overvoltages may cause large stresses on the system. This paper investigates the energization of two winding 220/22 kV main…
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Investigation of switching over-voltages with different wind farm topologies
With increasing wind farms scale, the practical problems become more complicated. One of the prominent problems is over-voltage production due to frequent switching activity. The over-voltage cruelty mainly depends on the wind farm topology, defined for an arrangement of the wind farm feeders…
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The Effect of Environmental Changes on Archaeological Wood at the Monastery of the Virgin Mary Al-Baramous in Wadi El-Natroun
This research focuses on a collection of wooden artifacts that were used in daily life, currently preserved at the Al-Baramous Monastery (St. Mary’s) in the Wadi El Natrun. The objective is to document, investigate their Fabrication techniques, identify the wood types and diagnose the various…
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Scrolling away from the news: how news overload drives avoidance and curation in the UAE
The huge increase in news content in the fast-changing world of social media has resulted in the phenomenon of news overload. This is reflected in individual behaviours such as news curation or avoidance, which have become a significant issue in both academic and journalistic circles. Based on the…