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Conservation of challenging endemic plant species at high risk of extinction in arid mountain ecosystems:a case study of Rosa arabica Cré*** Egypt

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Journal of Mountain Science 2021年第10期18卷 2698-2721页

作者： Karim omar Ibrahim ELGAMAL Nature Conservation Sector Ministry of EnvironmentCairo 11728Egypt United Nation Development Program(UNDP) Cairo 2007Egypt

Rosa arabica Cré*** a perennial shrub belonging to the family *** is endemic to the high mountain area of *** Protected Area(SCPA)in southern Sinai,Egypt,and is listed as one of the most 100 threatened plants in the ***,it has been listed as critically endangered by IUCN Red List due to its small extent of occurrence and tiny population *** reported the continuous decline in habitat quality for this species and the urgent need to carry out on-ground conservation ***,this research aims to conserve Rosa arabica through in situ practices by implementing the following steps,respectively:a)evaluate the current conservation status through IUCN Red List to extract the environmental factors controlling the species’distribution necessary for establishing the recovery program,b)determine the potential species habitat suitability under the current climate conditions using Maxent,and c)based on the previous two steps,the translocation process for *** in the suitable habitat will be done after the simple layering process as one of the most effective traditional vegetative methods for wild cultivation for this *** steps aimed to reduce the impact of threats and the risk of extinction through increasing the population size,the Extent of Occurrence(EOO),and the Area of Occupancy(AOO).We extracted the environmental factors controlling the target species’distribution and habitat suitability range using the IUCN Red List assessment and Species Distribution Model(SDM).The most suitable habitat for *** is predicted in the middle northern parts of SCPA,with the highest suitability in the High *** of driest quarter,precipitation of wettest month,precipitation of coldest quarter,and aspect are the highest mean contributors determining the distribution of *** in *** arabica potential distribution covers 324.4 km^(2)(7.46%)of the total SCPA area(4350 km^(2)).This area is divided into:18.1 km^(2)high

关键词： Mountain ecosystems Recovery Translocations Layering Conservation Species distribution modelling Maxent IUCN Red List

Advanced Oxidation Wastewater Treatment of 3 LPS of an Avocado Sauce Company,at Morelia,Michoacan,Mexico

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Journal of Environmental Science and Engineering(A) 2024年第5期13卷 151-155页

作者： Alfonso Espitia-Cabrera Francisco Javier Barrón-Santos JoséL.Méndez-Antonio Héctor M.Alemán-Vásquez omar G.Color-Vázquez Saneamiento y Planeación Ambiental Azcapotzalco CDMX 02200México Energy Department Metropolitan Autonomous University Azcapotzalco CampusCDMX 02200Mexico Environmental System Engineering Department Environmental Engineering AcademyNational School of Biological SciencesNational Polytechnic InstituteCiudad de MéxicoCDMX 07738México Planta Congeladora y Empacadora Nacional Morelia 58190MichoacánMéxico

This paper describes the wastewater treatment of 3 liters per second of capacity of discharges of capacity,from the avocado washed,as well as the production of avocado *** were pretreated with a grease and oil trap and contained small amounts of oil and grease,dissolved and total solids,organic matter and trace of organic and inorganic compounds from the vitamins and minerals of *** treatment train is located in an small surface and the train is integrated with coagulation in line with alumina in a static mixer,rapid filtration in two steps,double advanced oxidation with ozone and heterocyclic photocatalysis with a nanofilm of zinc oxide as,photocatalyzer and final adsorption of refractory compounds with activated *** treated wastewater meets the environmental regulation to urban sewerage discharges of the city,according to the results of a Mexican Certified Laboratory.

关键词： Wastewater primary treatment rapid filter performance static mixer

A review on catalytic & non-catalytic bio-oil upgrading in supercritical fluids

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Frontiers of Chemical Science and Engineering 2021年第1期15卷 4-17页

作者： Sainab omar Yang Yang Jiawei Wang Chemical Engineering and Applied Chemistry Aston UniversityBirminghamB47ETUK

This review article summarizes the key published research on the topic of bio-oil upgrading using catalytic and non-catalytic supercritical fluid(SCF)*** precious metal catalysts Pd,Ru and Pt on various supports are frequently chosen for catalytic bio-oil upgrading in *** is reportedly due to their favourable catalytic activity during the process including hydrotreating,hydrocracking,and esterification,which leads to improvements in liquid yield,heating value,and pH of the upgraded *** to the costs associated with precious metal catalysts,some researchers have opted for non-precious metal catalysts such as acidic HZSM-5 which can promote esterification in supercritical *** the other hand,SCFs have been effectively used to upgrade crude bio-oil without a *** methanol,ethanol,and water are most commonly used and demonstrate catalyst like activities such as facilitating esterification reactions and reducing solid yield by alcoholysis and hydrolysis,respectively.

关键词： bio-oil upgrading supercritical review

The Essential Oil of Ocimum americanum from Senegal and Gambia as a Source of Methyleugenol for the Control of Bactrocera dorsalis, Fruit Fly

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Journal of Agricultural Chemistry and Environment 2024年第1期13卷 133-141页

作者： Yoro Tine Antonio Alain Coffi Sinzogan Ousmane Ndiaye Cebastiana Sambou Alioune Diallo Ismaila Mbenga Kemo Badji El Hadji omar Dieng Assa Balayara Jeanne Diatta Cheikhouna Gaye Julien Paolini Jean Costa Alassane Wele Saliou Ngom Laboratoire de Chimie Organique et Thérapeutique Faculté de Médecine Pharmacie et Odontologie Université Cheikh Anta Diop Dakar Sénégal Faculte des Sciences Agronomiques Universite d’Abomey Calavi Cotonou Benin Ecole Nationale Supérieure d’Agriculture (ENSA) Université Iba Der Thiam de Thiès Thiès Sénégal Direction de la Protection des Végétaux Rufisque Sénégal Laboratoire de Chimie des Produits Naturels Université de Corse Corte France National Agricultural Research Institute (NARI) Sere Kunda Gambia Institut Sénégalais de Recherches Agricoles (ISRA) Dakar Sénégal

The fruit fly, Bactrocera dorsalis (Diptera: Tephritidae) is one of the most important pests in all mango-producing areas, particularly in West Africa. In Senegal, O. americanum leaves have been used for several years to control this fly. However, to our knowledge, no chemical studies have been carried out. Thus, the aim of this study is to determine the chemical composition of the essential oil of O. americanum leaves collected in Senegal and Gambia. The essential oil obtained by hydrodistillation of these leaves is analyzed by GC/FID and GC/MS. Yields of essential oils from O. americanum leaves are 3.84% and 2.13%, respectively. Analysis of these essential oils by GC/FID and GC/MS allowed the identification of 23 compounds representing almost 100% of the total compositions. These essential oils are mainly dominated by methyleugenol (72.0% and 75.8%, respectively). Other components in significant percent are trans-β-caryophyllene (13.9% and 13.0%, respectively), germacrene D (4.1% and 3.7%, respectively), β-elemene (3.3% and 0.9%, respectively). Due to the high methyleugenol content, this study explains the attractive potential of O. americanum towards B. dorsalis. In perspective, we plan to evaluate the attractive effect of the essential oil and leaf powder of O. americanum against B. dorsalis, a real pest of mango orchards in Senegal.

关键词： Ocimum americanum Essential Oils Methyleugenol Bactrocera dorsalis GC/MS

A Reliable and Scalable Internet of Military Things Architecture

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Computers, Materials & Continua 2021年第6期67卷 3887-3906页

作者： omar Said Amr Tolba Department of Information Technology College of Computers and Information TechnologyTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Department of Computer Science Community CollegeKing Saud UniversityRiyadh11437Saudi Arabia Department of Mathematics and Computer Science Faculty of ScienceMenoufia UniversityShebin Elkoum32511Egypt

Recently,Internet of Things(IoT)technology has provided logistics services to many disciplines such as agriculture,industry,and ***,it has become one of the most important scientific research *** IoT to military domain has many challenges such as fault tolerance and *** this paper,IoT technology is applied on the military field to create an Internet of Military Things(IoMT)***,the architecture of the aforementioned IoMT system is *** architecture consists of four main layers:Communication,information,application,and decision *** layers provided a fault tolerant coverage communication system for IoMT ***,it implemented data reduction methods such as filtering,compression,abstraction,and data prioritization queuing system to guarantee QoS for the transmitted ***,it used decision support technology and IoMT application unification ***,to evaluate the IoMT system,an intensive simulation environment is constructed using the network simulation package,*** simulation results proved that the proposed IoMT system outperformed the traditional military system with regard to the performance metrics,packet loss,end-to-end delay,throughput,energy consumption ratio,and data reduction rate.

关键词： Internet of things internet of military things simulation military battlefield

Treatment of landfill waste, leachate and landfill gas： A review

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Frontiers of Chemical Science and Engineering 2015年第1期9卷 15-32页

作者： Hecham omar Sohrab ROHANI The University of Western Ontario Department of Chemical and Biochemical Engineering London Ontario N6A 5B9 Canada

This review aims at the treatment of the entire landfill, including the waste mass and the harmful emissions： leachate and landfill gas. Different landfill treatments （aerobic, anaerobic and semi-aerobic bioreactor landfills, dry-tomb landfills）, leachate treatments （anaero- bic and aerobic treatments, anammox, adsorption, chemi- cal oxidation, coagulation/flocculation and membrane processes） and landfill gas treatments （flaring, adsorption, absorption, permeation and cryogenic treatments） are reviewed. Available information and the gaps present in current knowledge is summarized. The most significant areas to expand are landfill waste treatments, which in recent years has begun to grow but there is an opportunity for much more. Another area to explore is the treatment of landfill gas, a very large field to which not much effort has been put forth. This review is to compare different treatment methods and give direction to future research.

关键词： landfill aerobic anaerobic leachate landfillgases municipal solid waste

Practical approach to linear endoscopic ultrasound examination of the gallbladder

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World Journal of Radiology 2024年第6期16卷 184-195页

作者： Hussein Hassan Okasha Eyad Gadour Hassan Atalla omar AbdAllah AbdEl-Hameed Reem Ezzat Ahmed Elsayed Alzamzamy Elsayed Ghoneem Rasha Ahmad Matar Zeinab Hassan Bogdan Miutescu Ayman Qawasmi Katarzyna M Pawlak Ahmed Elmeligui Department of Internal Medicine Division of Gastroenterology and HepatologyKasr Al-Aini School of MedicineCairo UniversityCairo 11562Egypt Department of Gastroenterology and Hepatology King Abdulaziz Hospital-National GuardAhsa 31982Saudi Arabia Department of Medicine School of MedicineZamzam University CollegeKhartoum 11113Sudan Department of Internal Medicine Hepatology and Gastroenterology UnitFaculty of MedicineMansoura UniversityMansoura 35516Egypt Department of Internal Medicine Faculty of MedicineAssiut UniversityAssiut 71511Egypt Department of Gastroenterology and Heptology Maadi Armed Forces Medical ComplexMilitary Medical AcademyCairo 11728Egypt Department of Gastroenterology and Advance Endoscopy Sultant Qaboos Comprehensive Cancer Care and Research CentreMuscat 0961Oman Department of Internal Medicine Stockport Hospitals NHS Foundation TrustManchester SK27JEUnited Kingdom Department of Gastroenterology and Hepatology Victor Babes University of Medicine and PharmacyTimisoara 300041Romania Advanced Regional Research Centre in Gastroenterology and Hepatology Victor Babes University of Medicine and PharmacyTimisoara 30041Romania Department of Gastroenterology Al-Makassed Islamic Charitable Society HospitalCairo 11124Egypt Division of Gastroenterology St.Michael’s HospitalUniversity of TorontoToronto M5B 1W8Canada Department of Gastroenterology Southend University HospitalEssex SS26XTUnited Kingdom

The gallbladder(GB)is a susceptible organ,prone to various pathologies that can be identified using different imaging *** ultrasound(TUS)is typically the initial diagnostic method due to its numerous well-established ***,in cases of uncertainty or when a definitive diagnosis cannot be established,computed tomography(CT)or magnetic resonance imaging may be employed to provide more detailed ***,CT scans may sometimes offer inadequate spatial resolution,which can limit the differentiation of GB lesions,particularly when smaller yet clinically relevant abnormalities are ***,endoscopic ultrasound(EUS)provides higher frequency compared to TUS,superior spatial resolution,and the option for contrast-enhanced harmonic imaging,enabling a more comprehensive ***,EUS can serve as a supplementary tool when conventional imaging methods are *** review will describe the standard EUS examination of the GB,focusing on its endosonographic characteristics in various GB path-ologies.

关键词： Endoscopic ultrasound Linear endoscopic ultrasound Gallbladder anatomy Gallbladder pathologies Therapeutic endoscopic ultrasound

Evolution of heart transplant donor characteristics in the 21st century: A United States single center’s experience

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World Journal of Transplantation 2024年第3期14卷 22-29页

作者： Alexander M Spring Christiana Gjelaj Shivank Madan Snehal R Patel omar Saeed Sandhya Murthy Yogita Rochlani Daniel B Sims Sasha Vukelic Stephen J Forest Jamil F Borgi Daniel J Goldstein Ulrich P Jorde Montefiore-Einstein Center for Heart and Vascular Care Montefiore Medical CenterAlbert Einstein College of MedicineBronxNY 10467United States Division of Cardiothoracic Surgery Tulane UniversityNew OrleansLA 70112United States

Despite a record setting number of heart transplants performed annually,the national donor shortage continues to plague transplant teams across the United *** we describe the barriers to adaptation of numerous“non-traditional”orthotopic heart transplant donor characteristics including donors with hepatitis C virus,those meeting criteria for donation after cardiac death,donors with coronavirus disease 19 infection,donors with the human immunodeficiency virus,and grafts with left ventricular systolic *** center’s objective was to increase our transplant volume by expanding our donor pool from“traditional”donors to these“non-traditional”*** detail how medical advances such as certain laboratory studies,pharmacologic interventions,and organ care systems have allowed our center to expand the donor pool thereby increasing transplantation volume without adverse effects on outcomes.

关键词： Orthotopic heart transplantation Hepatitis C virus COVID-19 Left ventricular systolic dysfunction Human immunodeficiency virus Donation after cardiac death

Gastric acid inhibitory and gastric protective effects of cannabis and cannabinoids

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Asian Pacific Journal of Tropical Medicine 2016年第5期9卷 401-408页

作者： omar Abdel-Salam Department of Toxicology and Narcotics Medical Division National Research Centre

Cannabis sativa has long been known for its psychotropic effect. Only recently with the discovery of the cannabinoid receptors, their endogenous legends and the enzymes responsible for their synthesis and degradation, the role of this ‘endocannabinoid system’ in different pathophysiologic processes is beginning to be delineated. There is evidence that CB1 receptor stimulation with synthetic cannabinoids or Cannabis sativa extracts rich in ?9-tetrahydrocannabinol inhibit gastric acid secretion in humans and in experimental animals. This is specially seen when gastric acid secretion is stimulated by pentagastrin, carbachol or 2 deoxy-D-glucose. Cannabis and/or cannabinoids protect the gastric mucosa against noxious challenge with non-steroidal anti-inflammatory drugs, ethanol as well as against stress induced mucosal damage. Cannabis/cannabinoids might protect the gastric mucosa by virtue of its antisecretory, antioxidant, anti-inflammatory, and vasodilator properties.

关键词： Cannabis sativa Gastric mucosa Gastric acid