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Parametric Methods for the Regional Assessment of Cardiac Wall Motion Abnormalities: Comparison Study

Computers, Materials & Continua 2021年第10期69卷 1233-1252页

作者： Narjes Benameur Mazin Abed Mohammed Ramzi Mahmoudi younes arous Begonya Garcia-Zapirain Karrar Hameed Abdulkareem Mohamed Hedi Bedoui University of Tunis El Manar Higher Institute of Medical Technologies of TunisLaboratory of Biophysics and Medical TechnologiesTunisTunisia College of Computer Science and Information Technology University of Anbar31001AnbarIraq Faculty of Medicine of Monastir Medical Imaging Technology Lab-LTIM-LR12ES06University of Monastir5019MonastirTunisia Gaspard-Monge Computer-Science Laboratory Paris-Est UniversityMixed Unit CNRS-UMLV-ESIEE UMR8049BP99ESIEE Paris CitéDescartes93162 Noisy Le GrandFrance Military Hospital of Instruction of Tunis TunisTunisia eVIDA Lab University of DeustoAvda/Universidades 24Bilbao48007Spain College of Agriculture Al-Muthanna UniversitySamawah66001Iraq

Left ventricular(LV)dysfunction is mainly assessed by global contractile indices such as ejection fraction and LV Volumes in cardiac *** these indices give information about the presence or not of LV alteration,they are not able to identify the location and the size of such *** aim of this study is to compare the performance of three parametric imaging techniques used in cardiac MRI for the regional quantification of cardiac *** proposed approaches were evaluated on 20 patients with myocardial infarction and 20 subjects with normal *** parametric images approaches:covariance analysis,parametric images based on Hilbert transform and those based on the monogenic signal were evaluated using cine-MRI frames acquired in three planes of *** results show that parametric images generated from the monogenic signal were superior in term of sensitivity(89.69%),specificity(86.51%)and accuracy(89.06%)to those based on covariance analysis and Hilbert transform in the detection of contractile dysfunction related to myocardial ***,the parametric image based on the monogenic signal is likely to provide additional regional indices about LV dysfunction and it may be used in clinical practice as a tool for the analysis of the myocardial alterations.

关键词： Covariance analysis cardiac MRI monogenic signal assessment Hilbert transform

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Tocotrienol isoforms:The molecular mechanisms underlying their effects in cancer therapy and their implementation in clinical trials

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Journal of Integrative Medicine 2024年第1期22卷 1-11页

作者： Maria younes Ghady Loubnane Christopher Sleiman Sandra Rizk Department of Natural Sciences Lebanese American UniversityByblosLebanon

Tocotrienols are found in a variety of natural sources,like rice bran,annatto seeds and palm oil,and have been shown to have several health-promoting properties,particularly against chronic diseases such as *** incidence of cancer is rapidly increasing around the world,not only a result of continued aging and population growth,but also due to the adoption of aspects of the Western lifestyle,such as high-fat diets and low-physical *** literature provides strong evidence that tocotrienols are able to inhibit the growth of various cancers,including breast,lung,ovarian,prostate,liver,brain,colon,myeloma and pancreatic *** findings,along with the reported safety profile of tocotrienols in healthy human volunteers,encourage further research into these compounds’potential use in cancer prevention and *** current review provided detailed information about the molecular mechanisms of action of different tocotrienol isoforms in various cancer models and evaluated the potential therapeutic effects of different vitamin E analogues on important cancer hallmarks,such as cellular proliferation,apoptosis,angiogenesis and ***/PubMed and Scopus databases were used to identify recently published articles that investigated the anticancer effects of vitamin E derivatives in various types of cancer in vitro and in vivo along with clinical evidence of adjuvant chemopreventive *** an overview of pre-clinical studies,we describe several completed and ongoing clinical trials that are paving the way for the successful implementation of tocotrienols in cancer chemotherapy.

关键词： Vitamin E Tocotrienols Cancer Molecular mechanism Clinical trials

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Fatty acids derived from oviposition systems guide female black soldier flies(Hermetia illucens)toward egg deposition sites

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Insect Science 2024年第4期31卷 1231-1248页

作者： Patrick Klüber Emna arous Jeanny Jerschow Marco Fraatz Daniel Bakonyi Martin Rühl Holger Zorn Department Bioresources Fraunhofer Institute for Molecular Biology and Applied EcologyGiessenGermany Institute of Food Chemistry and Food Biotechnology Justus Liebig University GiessenGiessenGermany

The black soldier fly,Hermetia illucens,comes with big promises for industrial purposes since its larvae feed polyphagously on a broad spectrum of organic ***,research focusing on adult flies is scarce,which is inconsistent with their reproductive relevance within the rearing *** particular,directed oviposition is a challenge in artificial ***,decomposing organic matter is commonly used as oviposition substrate,which has extensive potential for improvement in view of the lack of standardization and the risk of microbial ***,we identified three fatty acids and one fatty acid methyl ester derived from the surface of old oviposition sites and targeted to elucidate their effect on preference behavior and oviposition site selection using Y-olfactometry and prepared oviposition sites,*** to tetradecanoic acid attracted gravid females and stimulated oviposition most strongly,while decanoic acid demonstrated a repulsive *** kept in mixed-sex populations were attracted by tetradecanoic acid,resulting in a higher egg mass found in the compound box(3.0–11.4 fold),a≥2.3 fold reduction of nonspecifically deposited eggs,and the highest total egg ***,decanoic and dodecanoic acid caused females to lay a greater proportion of eggs nonspecifically outside both *** data suggest that fatty acids,especially tetradecanoic acid,are important cues for oviposition site selection in black soldier *** order to achieve a directed oviposition behavior,the role of further short-and long-chain fatty acids as attractants should be examined.

关键词： black soldier fly Hermetia illucens fatty acids insects as food and feed oviposition oviposition site selection tetradecanoic acid

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Integrated hazard assessment of rockfall incidents in the Cap Aokas Cliff Region

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Journal of Mountain Science 2024年第6期21卷 1916-1929页

作者： Zohra LADJEL Farid ZAHRI Riheb HADJI younes HAMED Karim ZIGHMI Kaddour BENMARCE Department of Earth Sciences Institute of Architecture and Earth SciencesFerhat Abbas UniversitySetif 19137Algeria Unit of Emerging Materials Research Ferhat Abbes UniversitySétif 19137Algeria Laboratory of Applied Research in Engineering Geology GeotechnicsWater Sciencesand EnvironmentFerhat Abbas UniversitySetif 19137Algeria International Association of Water Resources in the Southern Mediterranean Basin Gafsa 2112Tunisia Department of Earth Sciences Faculty of SciencesUniversity of GafsaGafsa 2112Tunisia

Rock fall accidents in mountainous cliff areas have significant consequences for human life and *** study aimed to evaluate the rockfall hazard in the Cap Aokas cliff region located along the northeast coast of Algeria by identifying the key factors contributing to rockfall *** employed a combination of kinematic analysis,Matterocking method,and 3D trajectory simulations to determine zones that are susceptible to rockfall *** using a probabilistic and structural approach in conjunction with photogrammetry,we identified the controlling *** kinematic analysis revealed the presence of five discontinuity families,which indicated both plane and wedge failure *** 3D trajectory simulations demonstrated that the falling blocks followed the stream *** then validated the susceptibility maps generated from the analysis using aerial photos and historical rockfall *** findings of this study enhance our understanding of rockfall phenomena and provide valuable insights for the development of effective strategies to mitigate rockfall hazards.

关键词： Trajectory simulations Probabilistic analysis Structural approach Rockfall hazard Cap Aokas cliff

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Broken Rules,Broken Lives

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Beijing Review 2024年第36期67卷 26-27页

作者： younes Abouyoub Governance and State-Building Section United Nations Economic Social Commission for Western Asia(UN-ESCWA)

As we observe the 75th anniversary of the adoption of the 1949 Geneva Conventions(hereinafter referred to as the Conventions),which are deemed the most essential treaties in international humanitarian law as they provide a widely accepted and comprehensive framework for protecting individuals during armed conflicts,their relevance is underscored by the ongoing challenges in ensuring the protection of civilians,prisoners of war and the wounded.

关键词： anniversary wound law

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Overall Assessment of Heat Transfer for a Rarefied Flow in a Microchannel with Obstacles Using Lattice Boltzmann Method

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工程与科学中的计算机建模(英文) 2024年第1期138卷 273-299页

作者： Siham Hammid Khatir Naima Omolayo M.Ikumapayi Cheikh Kezrane Abdelkrim Liazid Jihad Asad Mokdad Hayawi Rahman Farhan Lafta Rashid Naseer Ali Hussien younes Menni Laboratory of Development in Mechanics and Materials(LDMM) Zian Achour UniversityDjelfaPB 3117Algeria Department of Technology University Center Salhi Ahmed Naama(Ctr.Univ.Naama)P.O.Box 66Naama45000Algeria Department of Mechanical and Mechatronics Engineering Afe Babalola University Ado Ekiti360101Nigeria Departement of Physics Faculty of ScienceAbou Bekr Belkaid UniversityTlemcen13000Algeria Department of Physics Faculty of Applied SciencesPalestine Technical University-KadoorieTulkarmPalestine Aeronautical Technical Engineering Al-Farahidi UniversityBaghdad10011Iraq Mechanical Engineering Department University of KerbalaKarbala56001Iraq Information and Communication Technology Research Group Scientific Research CenterAl-Ayen UniversityThi-QarIraq National University of Science and Technology Dhi QarIraq

The objective of this investigation is to assess the effect of obstacles on numerical heat transfer and fluid flow momentum in a rectangular microchannel(MC).Two distinct configurations were studied:one without obstacles and the other with alternating obstacles placed on the upper and lower *** research utilized the thermal lattice Boltzmann method(LBM),which solves the energy and momentum equations of fluids with the BGK approximation,implemented in a Python coding *** jump and slip velocity conditions were utilized in the simulation for the MC and extended to all obstacle *** study aims to analyze the rarefaction effect,with Knudsen numbers(Kn)of 0.012,0.02,and *** outcomes indicate that rarefaction has a significant impact on the velocity and temperature *** presence of nine obstacles led to slower fluid movement inside the microchannel MC,resulting in faster cooling at the *** MCs with obstacles,the rarefaction effect plays a crucial role in decreasing the Nusselt number(Nu)and skin friction coefficient(Cf).Furthermore,the study demonstrated that the obstacles played a crucial role in boosting fluid flow and heat transfer in the *** findings suggest that the examined configurations could have potential applications as cooling technologies in micro-electro-mechanical systems and microdevice applications.

关键词： Microfluid rarefied flow LBM microchannel Knudsen number numerical simulation

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Metasurfaces for next-generation wireless communication systems

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National Science Review 2023年第8期10卷 17-19页

作者： younes Ra'di Nikita Nefedkin Petar Popovski Andrea Alù Department of Electrical Engineering and Computer Science Syracuse University Photonics Initiative Advanced Science Research Center City University of New York Department of Electronic Systems Aalborg University Physics Program Graduate Center City University of New York

The pace of development in the world of 5G communication systems has proven to be much more demanding than previous generations, with 5G-Advanced seemingly around the corner [1]. Extensive research is already underway to structure the next generation of wireless systems(i.e. 6G), which may potentially enable an unprecedented level of human–machine interaction [2].

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A systematic review of occupational exposure to respirable coal mine dust(RCMD)in the *** industry

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International Journal of Coal Science & Technology 2023年第2期10卷 32-44页

作者： younes Shekarian Elham Rahimi Mohammad Rezaee Pedram Roghanchi John and Willie Leone Family Department of Energy and Mineral Engineering Earth and Mineral Sciences(EMS)Energy InstituteThe Pennsylvania State UniversityUniversity ParkUSA Department of Mineral Engineering New Mexico Institute of Mining and TechnologySocorroNMUSA

Cumulative inhalation of respirable coal mine dust(RCMD)can lead to severe lung diseases,including coal worker's pneu-moconiosis(CWP),silicosis,mixed dust pneumoconiosis,dust-related diffuse fibrosis(DDF),and progressive massive fibrosis(PMF).Statistics from the number of reported cases showed a significant decrease in the progression of respiratory diseases in the ***,an unexpected increase in the number of CWP cases was reported in the late *** date,there has been no comprehensive systematic review to assess all contributing factors to the resurgence of CWP *** study aims to investigate the effects of various mining parameters on the prevalence of CWP in coal mines.A systematic review using the preferred reporting items for systematic reviews and meta-analysis(PRISMA)method was conducted to investigate the health effects of RCMD exposure and identify the factors that may contribute to the recent resurgence of CWP *** systematic review yielded a total of 401 papers,which were added to the *** total number of 148 and 208 papers were excluded from the database in the process of screening and eligibility,***,18 papers were considered for data selection and full-text *** review revealed that factors including geographic location,mine size,mining operation type,coal-seam thickness,coal rank,changes in mining practices,technology advancement,and engi-neering dust control practices are contributing to the recent resurgence of CWP among coal ***,the evidence for root causes is limited owing to the methodological constraints of the studies;therefore,further detailed studies are needed.

关键词： Respirable coal mine dust Systematic review Coal worker's pneumoconiosis Respiratory diseases Exposure limit Occupational exposure

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Efficient method for wind velocity estimation and power-extraction maximization using a fourth-order Luenberger observer in a wind-energy-conversion system

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Clean Energy 2022年第6期6卷 797-809页

作者： younes Azelhak Damien Voyer Hicham Medromi Laboratory of Research in Engineering(LRI) System Architecture Team(EAS)Hassan II University—ENSEM Casablanca 8118 Morocco EIGSI La Rochelle 17000 France 3Laboratory of Research in Engineering(LRI)System Architecture Team(EAS)Hassan II University—ENSEM Casablanca 8118Morocco

This paper proposes an advanced method for estimating numerous parameters in a wind-energy-conversion system with high precision,especially in a transient state,including the rotation speed and mechanical torque of the turbine as well as wind *** suggested approach is designed into two ***,a fourth-order Luenberger observer is proposed to take into account the significant fluctuations of the mechanical torque that can be caused by wind *** observer provides an accurate estimate of speed and mechanical torque in all weather conditions and especially when the wind is *** the same time,the wind velocity is calculated using the Luenberger observer outputs and a model of the mechanical power generated by the ***,these estimated parameters are exploited as input in a maximum-power-point tracking(MPPT)algorithm using the tip-speed ratio(TSR)to improve the sensorless strategy *** results were performed using MATLAB®/Simulink®for both wind gust and real wind *** have verified that for wind gusts with jumps ranging from 3 to 7 m/s,the new observer manages to better follow the rotation speed and the torque of the turbine compared to a usual *** addition,we demonstrated that by applying the proposed estimator in the improved TSR-MPPT strategy,it is possible to extract 3.3%more energy compared to traditional approaches.

关键词： wind velocity estimation mechanical parameters estimation MPPT algorithm wind-energy-conversion system

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Dynamics of groundwater recharge near a semi-arid Mediterranean intermittent stream under wet and normal climate conditions

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Journal of Arid Land 2022年第7期14卷 739-752页

作者： Youssef HAJHOUJI younes FAKIR Simon GASCOIN Vincent SIMONNEAUX Abdelghani CHEHBOUNI Faculty of Sciences Semlalia Cadi Ayyad University40000MarrakechMorocco Center for Remote Sensing Application(CRSA) UM6P43150BenguerirMorocco Center for the Study of the Biosphere from Space(CESBIO) 31400ToulouseFrance

In arid and semi-arid stream-dominated systems,the temporal variability in groundwater recharge has not been widely *** questions remain about the sources of groundwater recharge,its patterns,and the appropriate measuring ***,the main objective of the present study was to assess the changes that might affect the pattern of groundwater recharge under wetter than normal surface water ***,the groundwater depth was monitored near a semi-arid Mediterranean intermittent stream on the piedmont of the High Atlas Mountains in the mountain catchment of the Wadi Rheraya over two hydrological years(2014-2016)with different climate conditions:extreme wet and normal *** recharge was assessed using the episodic master recession *** the two years,the pattern of groundwater recharge was dominated by episodic events and by a high seasonality from wet seasons to dry *** the wet year(2014-2015),the highest groundwater recharge was recorded following an extreme flood,which deeply replenished ***,an exceptional steady state of the groundwater depth was induced by a steady groundwater recharge *** several groundwater recharge events,the assessed recharge had multiple sources,mainly from streamflow at the local scale,but possibly from precipitation,underflow,deep percolation or irrigation return from the upstream part of the *** recharge by streamflow was likely to be short-lived,and lateral recharge was likely to last ***,the episodic master recession algorithm estimated the total groundwater recharge that could encompass various *** the future,more studies and multidisciplinary approaches should be carried out to partition these sources and determine their specific *** semi-arid stream-dominated systems,different groundwater recharge patterns induced by extreme hydrological events(e.g.,wet events)and various potential sources of gro

关键词： groundwater recharge water table fluctuation episodic master recession algorithm episodic recharge wet year Wadi Rheraya Citation:Youssef HAJHOUJI

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