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Transport network downsizing based on optimal sub-network

Communications in Transportation Research 2022年第1期2卷 317-332页

作者： Matthieu Guillot Angelo Furno el-Houssaine Aghezzaf nour-eddin el faouzi Univ Gustave Eiffel Univ LyonENTPELICITF-69518LyonFrance Department of Industrial Systems Engineering and Product Design Faculty of Engineering and ArchitectureGhent UniversityGhentBelgium Industrial Systems Engineering(ISyE) Flanders MakeLommelBelgium

Transportation networks are sized to efficiently achieve some set of service *** particular circumstances,such as the COVID-19 pandemic,the demand for transportation can significantly change,both qualitatively and quantitatively,resulting in an over-capacitated and less efficient *** this paper,we address this issue by proposing a framework for resizing the network to efficiently cope with the new *** framework includes a model to determine an optimal transportation sub-network that guarantees the following:(i)the minimal access time from any node of the urban network to the new sub-network has not excessively increased compared to that of the original transportation network;(ii)the delay induced on any itinerary by the removal of nodes from the original transportation network has not excessively increased;and(iii)the number of removed nodes from the transportation network is within a preset known factor.A solution is optimal if it induces a minimal global *** modelled this problem as a Mixed Integer Linear Program and applied it to the public bus transportation network of Lyon,France,in a case *** order to respond to operational issues,the framework also includes a decision tool that helps the network planners to decide which bus lines to close and which ones to leave open according to specific trade-off *** results on real data in Lyon show that the optimal sub-network from the MILP model can be used to feed the decision tool,leading to operational scenarios for network planners.

关键词： Public transportation network Linear programming Decision tool Downsizing networks Case study

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Standardization of meibomian gland dysfunction in an Egyptian population sample using a non-contact meibography technique

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International Journal of Ophthalmology(English edition) 2024年第1期17卷 61-65页

作者： Ahmed Mohamed Karara Zeinab el-Sanabary Mostafa Ali el-Helw Tamer Ahmed Macky Mohamad Amr Salah eddin Abdelhakim Department of Ophthalmology Kasr Al-Ainy HospitalCairo UniversityCairo 11431Egypt

AIM:To develop normative data for meibomian gland dysfunction(MGD)parameters,using non-contact meibography technique of Sirius Costruzione Strumenti Oftalmici(CSO)machine,in an Egyptian population ***:Observational,cross-sectional,analytic study,in which 104 Egyptian volunteers were *** upper lids were examined,using“Sirius CSO”*** eyelid was given a degree of meibomian gland loss(MGL),which was calculated by the software of the ***:Mean percentage MGL in right upper lid was of 30.9%±12.6%,and that of left upper lid was 32.6%±11.8%.Thirty-four volunteers(32.7%)had first-degree MGL in their right upper lid,and 67.3%had second-degree *** volunteer(1%)had zero-degree MGL in left upper lid,28(26.9%)had first-degree loss,and 75(72.1%)had second-degree *** of MGL in right upper eyelid was not related to age,but degree of MGL in left upper eyelid increased with *** was statistically significant difference between both genders for degree of MGL in right eye(P=0.036)and in left eye(P=0.027).CONCLUSION:Noncontact meibography is a useful non-invasive tool for diagnosing *** is diagnosed in 100%of apparently normal individuals;26.9%-32.7%of which have first-degree MGL,and 67.3%-72.1%have second-degree MGL.

关键词： Egyptian population meibomian gland dysfunction non-contact meibography standardization upper lid

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Building Custom Spreadsheet Functions with Python: End-User Software Engineering Approach

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Journal of Software Engineering and Applications 2024年第5期17卷 246-258页

作者： Tamer Bahgat elserwy Atef Tayh nour el-Din Raslan Tarek Ali Mervat H. Gheith Department of Software Engineering Faculty of Graduate Studies for Statistical Research (FGSSR) Cairo University Giza Egypt Department of Information Systems Higher Institute of Advanced Studies Giza Egypt

End-user computing empowers non-developers to manage data and applications, enhancing collaboration and efficiency. Spreadsheets, a prime example of end-user programming environments widely used in business for data analysis. However, Excel functionalities have limits compared to dedicated programming languages. This paper addresses this gap by proposing a prototype for integrating Python’s capabilities into Excel through on-premises desktop to build custom spreadsheet functions with Python. This approach overcomes potential latency issues associated with cloud-based solutions. This prototype utilizes Excel-DNA and IronPython. Excel-DNA allows creating custom Python functions that seamlessly integrate with Excel’s calculation engine. IronPython enables the execution of these Python (CSFs) directly within Excel. C# and VSTO add-ins form the core components, facilitating communication between Python and Excel. This approach empowers users with a potentially open-ended set of Python (CSFs) for tasks like mathematical calculations, statistical analysis, and even predictive modeling, all within the familiar Excel interface. This prototype demonstrates smooth integration, allowing users to call Python (CSFs) just like standard Excel functions. This research contributes to enhancing spreadsheet capabilities for end-user programmers by leveraging Python’s power within Excel. Future research could explore expanding data analysis capabilities by expanding the (CSFs) functions for complex calculations, statistical analysis, data manipulation, and even external library integration. The possibility of integrating machine learning models through the (CSFs) functions within the familiar Excel environment.

关键词： End-User Software Engineering Custom Spreadsheet Functions (CSFs)

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Enhancing Data Analysis and Automation: Integrating Python with Microsoft Excel for Non-Programmers

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Journal of Software Engineering and Applications 2024年第6期17卷 530-540页

作者： Osama Magdy Ali Mohamed Breik Tarek Aly Atef Tayh nour el-Din Raslan Mervat Gheith Software Engineering Department Faculty of Graduate Studies for Statistical Research Cairo University Giza Egypt

Microsoft Excel is essential for the End-User Approach (EUA), offering versatility in data organization, analysis, and visualization, as well as widespread accessibility. It fosters collaboration and informed decision-making across diverse domains. Conversely, Python is indispensable for professional programming due to its versatility, readability, extensive libraries, and robust community support. It enables efficient development, advanced data analysis, data mining, and automation, catering to diverse industries and applications. However, one primary issue when using Microsoft Excel with Python libraries is compatibility and interoperability. While Excel is a widely used tool for data storage and analysis, it may not seamlessly integrate with Python libraries, leading to challenges in reading and writing data, especially in complex or large datasets. Additionally, manipulating Excel files with Python may not always preserve formatting or formulas accurately, potentially affecting data integrity. Moreover, dependency on Excel’s graphical user interface (GUI) for automation can limit scalability and reproducibility compared to Python’s scripting capabilities. This paper covers the integration solution of empowering non-programmers to leverage Python’s capabilities within the familiar Excel environment. This enables users to perform advanced data analysis and automation tasks without requiring extensive programming knowledge. Based on Soliciting feedback from non-programmers who have tested the integration solution, the case study shows how the solution evaluates the ease of implementation, performance, and compatibility of Python with Excel versions.

关键词： Python End-User Approach Microsoft Excel Data Analysis Integration Spreadsheet Programming Data Visualization

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Anti-aging based on stem cell therapy:A scoping review

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World Journal of Experimental Medicine 2024年第3期14卷 57-63页

作者： Nassar el Assaad Alain Chebly Rawad Salame Robert Achkar nour Bou Atme Khalil Akouch Paul Rafoul Colette Hanna Samer Abou Zeid Marwan Ghosn Charbel Khalil Faculty of Medicine Saint Joseph UniversityBeirut 961Lebanon Centre Jacques Loiselet for Medical Genetics and Genomics(CGGM) Faculty of MedicineSaint Joseph UniversityBeirut 961Lebanon Higher Institute of Public Health Saint Joseph UniversityBeirut 961Lebanon Stem Cell Therapy Lab Reviva Regenerative Medicine CenterBeirut 961Lebanon Poz Pozan University of Medical Sciences Pozan 034Poland Department of Epidemiology and Biostatistics Faculty of Public HealthLebanese UniversityBeirut 961Lebanon School of Medicine Lebanese American UniversityBeirut 961Lebanon Bone Marrow Transplant Unit Burjeel Medical CityAbu Dhabi 999041United Arab Emirates

Stem cells are present in the tissues and organs and remain in a quiescent and undifferentiated state until it is physiologically necessary to produce new descendant *** to their multipotency property,mesenchymal stem cells have attracted considerable attention worldwide due to their immunomodulation and therapeutic function in tissue *** cells secrete components such as paracrine factors,extracellular vesicles,and exosomes which have been shown to have anti-inflammatory,anti-aging,reconstruction and wound healing potentials in many in vitro and in vivo *** pluripotency and immunomodulatory features of stem cells could potentially be an effective tool in cell therapy and tissue *** affects the capacity for self-renewal and differentiation of stem cells,decreasing the potential for regeneration and the loss of optimal functions in organisms over *** progress in the field of cellular therapy and regenerative medicine has facilitated the evolution of particular guidelines and quality control approaches,which eventually lead to clinical *** therapy could potentially be one of the most promising therapies to control aging due to the fact that single stem cell transplantation can regenerate or substitute the injured *** understand the involvement of stem cells not only in tissue maintenance and disease but also in the control of aging it is important to know and identify their properties,functions,and regulation in vivo,which are addressed in this review.

关键词： Mesenchymal stem cell Anti-aging Telomerase Regenerative medicine Stem cell therapy

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Potential generated by a massive inhomogeneous straight segment

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Research in Astronomy and Astrophysics 2011年第3期11卷 345-352页

作者： nour-eddine Najid el Haj elourabi Mohamed Zegoumou Equipe Mécanique Statistique et Astronomie-Laboratoire de Physique Théorique et Appliquée Université Hassan Ⅱ Ain Chock-Faculté des Sciences Ain Chock BP 5366 Maarif Casablanca Morocco

The discoveries of binary asteroids have opened an important new field of research concerning the calculation of potential generated by irregular *** of them have an elongated shape.A simple model to describe the motion of a test particle in that kind of potential requires consideration of a finite homogeneous straight *** construct this model by adding an inhomogeneous distribution of mass. To be consistent with the geometrical shape of the asteroid,we explore a parabolic profile of the *** establish the closed analytical form of the potential generated by this inhomogeneous massive *** study of the dynamical behavior is fulfilled by the use of Lagrangian formulation,which allows us to calculate some two and three dimensional orbits.

关键词： asteroids—potential—inhomogeneous distribution

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Zinc carnosine-based modified bismuth quadruple therapy vs standard triple therapy for Helicobacter pylori eradication: A randomized controlled study

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World Journal of Clinical Cases 2022年第1期10卷 227-235页

作者： nour Ibrahim Hassan el Said Ali Choukair Faculty of Medical Sciences Lebanese UniversityBeirut 0000Lebanon Department of Biological and Chemical Sciences School of Arts and SciencesLebanese International UniversityBeirut 0000Lebanon Department of Gastroenterology Clemenceau Medical CenterDubai 00000United Arab Emirates

BACKGROUND Helicobacter pylori(***)infection is a worldwide problem with increasing burden on the health sector due to its increasing rate of *** conventional triple therapy(TT)is becoming obsolete with a high failure rate of eradication,necessitating the need for better alternatives or *** To investigate *** eradication rate of TT vs modified bismuth quadruple *** Ninety-two patients with dyspepsia symptoms and positive ^(13)C-urea breath test were randomly assigned to two *** first group(control group)was treated for 14 d using standard TT protocol:Esomeprazole(40 mg twice daily),amoxicillin(1 g twice daily)and clarithromycin(500 mg twice daily).On the other hand,the second group was prescribed a 10-d course of modified bismuth quadruple therapy fortified with zinc carnosine:TT in addition to bismuth subcitrate(240 mg twice daily)and zinc carnosine(75 mg twice daily).A repeated 13C-urea breath test was done 4 wk after the completion of the eradication *** Among the 92 subjects,67.4%were males and 32.6%were *** were no differences in demographic characteristics(age,body mass index,smoking history,previous antibiotics use and ethnicity)between the modified bismuth quadruple therapy group and TT *** eradication rate was higher[93.5%(43/46)]in the modified bismuth quadruple therapy group compared to 69.6%(32/46)in the standard TT group(P=0.003).Of the tested predictor variables,only nationality,smoking and therapy type were statistically *** dizziness,which was recorded in modified bismuth quadruple therapy group,there were no significant differences in side effects between the two *** Ten days of modified bismuth quadruple therapy fortified with zinc carnosine is superior to 14 d of conventional TT in eradicating *** infection,with no additional significant adverse events.

关键词： Helicobacter pylori Polaprezinc Bismuth Peptic ulcer Gastritis Drug Resistance Microbial

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A Flocking-Based on Demand Routing Protocol for Unmanned Aerial Vehicles

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Journal of Computer Science & Technology 2018年第2期33卷 263-276页

作者： nour el Houda Bahloul Saadi Boudjit Marwen Abdennebi Djallel eddine Boubiche LaSTIC Laboratory University of Batna 2 Batna 05078 Algeria L2TI Laboratory University of Paris 13 Villetaneuse 93430 France

The interest shown by some community of researchers to autonomous drones or UAVs （unmanned aerial vehicles） has increased with the advent of wireless communication networks. These networks allow UAVs to cooperate more efficiently in an ad hoc manner in order to achieve specific tasks in specific environments. To do so, each drone navigates autonomously while staying connected with other nodes in its group via radio links. This connectivity can deliberately be maintained for a while constraining the mobility of the drones. This will be suitable for the drones involved in a given path of a given transmission between a source and a destination. This constraint could be removed at the end of the transmission process and the mobility of each concerned drone becomes again independent from the others. In this work, we proposed a flocking-based routing protocol for UAVs called BR-AODV. The protocol takes advantage of a well known ad hoc routing protocol for on-demand route computation, and the Boids of Reynolds mechanism for connectivity and route maintaining while data is being transmitted. Moreover, an automatic ground base stations discovery mechanism has been introduced for a proactive drones and ground networks association needed for the context of real-time applications. The performance of BR-AODV was evaluated and compared with that of classical AODV routing protocol and the results show that BR-AODV outperforms AODV in terms of delay, throughput and packet loss.

关键词： unmanned aerial vehicle (UAV) AODV Boids of Reynolds mobility control

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Impact of the COVID-19 pandemic on healthcare workers’families

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World Journal of Clinical Cases 2022年第27期10卷 9964-9966页

作者： Mariana Helou nour el Osta Rola Husni Department of Emergency Medicine Lebanese American University school of MedicineBeirutLebanon Lebanese American University-Rizk Hospital BeirutLebanon Department of Emergency Lebanese American University School of MedicineBeirutLebanon Department of Infectious Diseases Lebanese American University School of MedicineBeirutLebanon

The coronavirus disease 2019 pandemic had a significant effect on the mental health,social lives,and family relationships of healthcare *** the pandemic,these workers had to prioritize their work over parenting,spending time with their kids or partners,planning weddings,and childbearing ***,special recognition should be given to the families of these employees.

关键词： Healthcare COVID-19 Relationship Pandemic Emergency Mental health

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The Rank of the 2-Class Group of Some Fields with LargeDegree

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Algebra Colloquium 2022年第2期29卷 181-188页

作者： Mohamed Mahmoud Chems-eddin Department of Mathematics Faculty of Sciences Dhar El Mahraz Sidi Mohamed Ben Abdellah UniversityFezMorocco

Let n≥3 be an integer and d an odd square-free *** compute the rank of the 2-class group of some fields of the form L_(n,d)=Q(ζ_(2^(n)),√d)when all the prime divisors of d are congruent to±3(mod 8)or 9(mod 16).

关键词： cyclotomic Z_(2)-extension 2-rank 2-class group

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