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Assessment of plant diversity of endemic species of the saharo-Arabian region in Egypt

Journal of Arid Land 2024年第7期16卷 1000-1021,I0002-I0044页

作者： asmaa s abo hatab Yassin M AL-sODANY Kamal H sHALTOUT soliman A HAROUN Mohamed M EL-KHALAFY Botany and Microbiology Department Faculty of ScienceKafrelsheikh UniversityKafrelsheikh 33511Egypt Botany Department Faculty of ScienceTanta UniversityTanta 31527Egypt

savanna, semi-deserts, and hot deserts characterize the saharo-Arabian region, which includes Morocco, Mauretania, Algeria, Tunisia, Libya, Egypt, Palestine, Kuwait, saudi Arabia, Qatar, Bahrain, the United Arab Emirates, Oman, Yemen, southern Jordan, syria, Iraq, Iran, Afghanistan, Pakistan, and northern India. Its neighboring regions, the sudano-Zambezian region belonging to the Paleotropical Kingdom and the Mediterranean and Irano-Turanian regions included in the Holarctic Kingdom, share a large portion of their flora with the saharo-Arabian region. Despite the widespread acknowledgment of the region's global importance for plant diversity, an up to date list of the saharo-Arabian endemics is still unavailable. The available data are frequently insufficient or out of date at both the whole global and the national scales. Therefore, the present study aims at screening and verifying the saharo-Arabian endemic plants and determining the phytogeographical distribution of these taxa in the Egyptian flora. Hence, a preliminary list of 429 saharo-Arabian endemic plants in Egypt was compiled from the available literature. Indeed, by excluding the species that were recorded in any countries or regions outside the saharo-Arabian region based on different literature, database reviews, and websites, the present study has reduced this number to 126 taxa belonging to 87 genera and 37 families. Regarding the national geographic distribution, south sinai is the richest region with 83 endemic species compared with other eight phytogeographic regions in Egypt, followed by the Isthmic Desert(the middle of sinai Peninsula, 53 taxa). sahara regional subzone(ss1) distributes all the 126 endemic species, Arabian regional subzone(ss2) owns 79 taxa, and Nubo-sindian subzone(ss3) distributes only 14 endemics. seven groups were recognized at the fourth level of classification as a result of the application of the two-way indicator species analysis(TWINsPAN) to the saharo-Arabian endemic sp

关键词： endemism phytogeographical regions saharo-Arabian floristic region Egyptian flora plant diversity two-way indicator species analysis(TWINsPAN)

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Numerical Treatments for Crossover Cancer Model of Hybrid Variable-Order Fractional Derivatives

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Computer Modeling in Engineering & sciences 2024年第8期140卷 1619-1645页

作者： Nasser sweilam seham Al-Mekhlafi Aya Ahmed Ahoud Alsheri Emad abo-Eldahab Mathematics Department Faculty of ScienceCairo UniversityGiza12613Egypt Mathematics Department Faculty of EducationSana’a UniversitySana’a1247Yemen Mathematics Department Faculty of ScienceHelwan UniversityCairo11795Egypt Department of Mathematics College of ScienceUniversity of BishaAl Namas67398-5644Saudi Arabia

In this paper,two crossover hybrid variable-order derivatives of the cancer model are ***ünwald-Letnikov approximation is used to approximate the hybrid fractional and variable-order fractional *** existence,uniqueness,and stability of the proposed model are *** Bashfourth’s fifth-step method with a hybrid variable-order fractional operator is developed to study the proposed *** studies with generalized fifth-order Runge-Kutta method are *** examples and comparative studies to verify the applicability of the used methods and to demonstrate the simplicity of these approximations are *** have showcased the efficiency of the proposed method and garnered robust empirical support for our theoretical findings.

关键词： Cancer diseases hybrid variable-order fractional derivatives adams bashfourth fifth step generalized fifth order Runge-Kutta method

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Evaluation of the Use of Long-Lasting Impregnated Mosquito Nets (LLINs) in the Health District of Dimbokro (Center of Côte d’Ivoire)

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Journal of Biosciences and Medicines 2024年第3期12卷 44-61页

作者： Ellélé Aimé Marius Yapi Tanoh Amany serge Raymond N’krumah Bi Yourou Guillaume Zamina Martial Bama Assikohon Pulchérie Gouzilé Amoin Nadège abo Issaka Tiembre General Hygiene Department Institut National d’HygiènePublique (INHP) Abidjan C&ocircte d’Ivoire Animal Biology Department Peléféro Gon Coulibaly University Korhogo C&ocircte d’Ivoire Environment and Health Department Swiss Center for Scientific Research Abidjan C&ocircte d’Ivoire Public Health Emergency Operations Center National Institute of Public Hygiene (INHP) Abidjan C&ocircte d’Ivoire Malaria Department National Institute of Public Hygiene (INHP) Abidjan C&ocircte d’Ivoire Epidemiological surveillance service Health District Dimbokro C&ocircte d’Ivoire Vaccinology sub-Directorate National Institute of Public Hygiene (INHP) Abidjan C&ocircte d’Ivoire Department of Public Health Félix Houphou&eumlt Boigny University Abidjan C&ocircte d’Ivoire

The Dimbokro health district has one of the highest incidences of malaria in Côte d’Ivoire, despite numerous campaigns to distribute Long-Acting Impregnated Mosquito Nets (LLINs). Given this observation, what are the population’s attitudes towards LLINs that could explain the high endemicity of malaria in Dimbokro? The aim of this study is to assess the knowledge, attitudes and practices of people in the health area of Nofou, one of the villages in the Dimbokro health district where malaria is most prevalent, with a view to strengthening malaria control strategies. A collection of historical health data (malaria cases and LLIN usage rates) and a cross-sectional questionnaire survey was carried out from July 20 to August 03, 2022 in 400 households selected by systematic random sampling. Data were entered using Epi Info 7 and multivariate statistical analyses were performed using IBM sPss 22 software. In the Dimbokro health district, the rate of LLIN use was negatively correlated (r = -0.771) with malaria incidence over the six years of historical data collection. Households had an average of 53% good knowledge, 68.6% good practices and 28.4% good attitudes towards LLINs. The study also revealed that the main factors explaining LLIN use in the Nofou health area are mosquito bite (ORa = 5.29 (1.12 - 25.04)), age of household members (ORa = 1.07 (1.01 - 1.14)) and marital status (ORa = 8.45 (1.70 - 45.02)). Awareness-raising on the use of LLINs should be intensified in the Dimbokro health district. Other control strategies, such as vector control and environmental sanitation, should be considered to combat malaria.

关键词： Malaria LLINs Knowledge Attitudes Practices Dimbokro Côte d’Ivoire

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The Impact of Inoculum Preparation Media on Pollutant Removal through Phycoremediation of Agricultural Drainage Water by Desmodesmus sp.

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国际实验植物学杂志(英文) 2023年第10期92卷 2875-2890页

作者： asmaa salah Hoda sany abo El-Khair B.El-sayed Reham M.El-Bahbohy Heba I.Mohamed Ayman Amin Plant Physiology Division Department of Agricultural BotanyFaculty of AgricultureCairo UniversityGizaP.O.Box 12613Egypt Algal Biotechnology Unit National Research CentreDokkiGiza12622Egypt Biological and Geological science Department Faculty of EducationAin Shams UniversityCairo11341Egypt

Water is the most essential natural resource for the future *** production is extensively water-dependent and a significant polluter of water ***,this work investigated the effect of two different preparation media[Bold’s Basal Medium(BBM)and Domiati cheese whey(DCW)]for agricultural drainage water(ADW)*** treatments were incubated for 6 *** to the results of biomass productivity,specific growth rate,photosynthetic pigments,and biochemical composition,Desmodesmus *** grow in drainage water without *** two treatments significantly reduced the concentration of nitrate,phosphate,chemical oxygen demand,and sodium in ***,using cheese whey with BBM as inoculum preparation media enhanced the lipid accumulation in the algal biomass(25.4%w/w)and gave the best biodiesel properties among ***,combining remediation of drainage water with microalgae mass production can achieve the sustainability of agriculture.

关键词： Desmodesmus sp. drainage water nutrients recycle photosynthetic pigments phycoremediation water scarcity

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Effect of magnetic field on poroelastic bone model for internal remodeling

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Applied Mathematics and Mechanics(English Edition) 2013年第7期34卷 889-906页

作者： A.M.ABD-ALLA s.M.abo-DAHAB Department of Mathematics Faculty of Sciences Taif University Department of Mathematics Faculty of Science Sohag University Department of Mathematics Faculty of Science South Valley University

This paper studies the effects of the magnetic field and the porosity on a poroelastic bone model for internal remodeling. The solution of the internal bone remodeling process induced by a magnetic field is presented. The bone is treated as a poroelastic material by Biot＇s formulation. Based on the theory of small strain adaptive elasticity, a theoretical approach for the internal remodeling is proposed. The components of the stresses, the displacements, and the rate of internal remodeling are obtained in analytical forms, and the numerical results are represented graphically. The results indicate that the effects of the magnetic field and the porosity on the rate of internal remodeling in bone are very pronounced.

关键词： wave propagation poroelastic wet bone internal remodeling magnetic field

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Effects of rotation and gravity on an electro-magneto-thermoelastic medium with diffusion and voids by using the Lord-shulman and dual-phase-lag models

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Applied Mathematics and Mechanics(English Edition) 2019年第8期40卷 1135-1154页

作者： s.M.abo-DAHAB A.M.ABD-ALLA A.A.KILANY Department of Mathematics Faculty of SciencesTaif UniversityTaif 888Saudi Arabia Department of Mathematics Faculty of ScienceSouth Valley UniversityQena 83523Egypt Department of Mathematics Faculty of ScienceSohag UniversitySohag 82524Egypt

The effects of rotation and gravity on an electro-magneto-thermoelastic medium with diffusion and voids in a generalized thermoplastic half-space are studied by using the Lord-shulman (L-s) model and the dual-phase-lag (DPL) model. The analytical solutions for the displacements, stresses, temperature, diffusion concentration, and volume fraction field with different values of the magnetic field, the rotation, the gravity, and the initial stress are obtained and portrayed graphically. The results indicate that the effects of gravity, rotation, voids, diffusion, initial stress, and electromagnetic field are very pronounced on the physical properties of the material.

关键词： electromagnetic field gravity field rotation initial stress voids diffusion normal mode analysis Lord-shulman (L-s) model dual-phase-lag (DPL) model

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Hydrogen Bonding in Hydrogenated Amorphous Germanium

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Tsinghua science and Technology 2004年第2期9卷 177-180页

作者： M. s. abo-Ghazala s. Al Hazmy Physics Department Faculty of Science Menoufia University Sheben El-Koom EgyptChemistry Department Faculty of Science Sana University Yemen

Thin films of hydrogenated amorphous germanium (a-Ge:H) were prepared by radio frequency glow discharge deposition at various substrate temperatures. The hydrogen distribution and bonding struc-ture in a-Ge:H were discussed based on infrared absorption data. The correlation between infrared absorp-tion spectra and hydrogen effusion measurements was used to determine the proportionality constant for each vibration mode of the Ge-H bonds. The results reveal that the bending mode appearing at 835 cm1 is associated with the Ge-H2 (dihydride) groups on the internal surfaces of voids. While 1880 cm1 is assigned to vibrations of Ge-H (monohydride) groups in the bulk, the 2000 cm1 stretching mode is attributed to Ge-H and Ge-H2 bonds located on the surfaces of voids. For films associated with bending modes in the infrared spectra, the proportionality constant values of the stretching modes near 1880 and 2000 cm1 are found to be lower than those of films which had no corresponding bending modes.

关键词： hydrogenated amorphous germanium hydrogen bonding film

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Reflection of PlaneWaves from Electro-magneto-thermoelastic Half-space with a Dual-Phase-Lag Model

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Computers, Materials & Continua 2016年第2期51卷 63-79页

作者： A.M.Abd-Alla Mohamed I.A.Othman s.M.abo-Dahab Math.Dept. Faculty of ScienceTaif University 888Saudi Arabia Department of Mathematics Faculty of ScienceSohag UniversityEgypt Math.Dept. Faculty of ScienceZagazig UniversityP.O.Box 44519ZagazigEgypt Math.Dept. Faculty of ScienceSouth Valley UniversityQena 83523Egypt

The aim of this paper is to study the reflection of plane harmonic waves from a semi-infinite elastic solid under the effect of magnetic field in a *** expressions for the reflection coefficients,which are the relations of the amplitudes of the reflected waves to the amplitude of the incident waves,are ***,the reflection coefficient ratio variations with the angle of incident under different conditions are shown *** are made with the results predicted by the dual-phase-lag model and Lord-shulman theory in the presence and absence of magnetic field.

关键词： Reflection Generalized thermoelasticity Magnetic field Dual-phaselag model

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Electromagnetic field in fiber-reinforced micropolar thermoelastic medium using four models

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Journal of Ocean Engineering and science 2020年第3期5卷 230-248页

作者： s.M.abo-Dahab A.M.Abd-Alla A.A.Kilany Dept.of Mathematics Faculty of ScienceTaif University 888Saudi Arabia Dept.of Mathematics Faculty of ScienceSohag UniversityEgypt Dept.of Mathematics Faculty of ScienceSVUQena 83523Egypt

This paper aimed to study the effect of electromagnetic field on general model of the equations of the generalized thermoelasticity reinforcement of the deformation of a micropolar generalized thermoelastic *** phenomenon is in the context of the couple theory(C-D),Lord-shulman(L-s)and Green-Lindsay(G-L)as well as the Dual-Phase-Lag(DPL)*** normal mode technique is used to find the exact expressions components of displacement,force stress,and *** modifications of the considered variables with the horizontal distance are illustrated graphically to show the distance values that reduce to the variables *** are made with the results in the absence and presence of electromagnetic field for the general of reinforcement on the total deformation of a micropolar thermoelastic *** results obtained are calculated numerically and displayed by the graphs to show the effect of the entered new parameters on the phenomena.

关键词： Electro-magneto-thermoelasticity Micropolar Fiber-reinforced Lord-shulman Green-Lindsay Dual-phase-lag

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The effect of gravity and inclined load in micropolar thermoelastic medium possessing cubic symmetry under G-N theory

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Journal of Ocean Engineering and science 2018年第4期3卷 288-294页

作者： Mohamed I.A.Othman s.M.abo-Dahab Haneen A.Alosaimi Department of Mathematics Faculty of ScienceZagazig UniversityZagazig 44519Egypt Department of Mathematics Faculty of ScienceTaif UniversityTaif 888Saudi Arabia Department of Mathematics Faculty of ScienceSouth Valley UniversityQena 83523Egypt

The problem of the micropolar thermoelastic medium under(G-N)theory of both types II,III under the effect of the gravity was *** normal mode analysis is used to obtain the solution of the physical *** are made between the results predicted by the(G-N)theory of type II and type III in the presence and absence of gravity and for different values of the angle of inclination.©2018 shanghai Jiaotong *** by Elsevier B.V.

关键词： Micropolar thermoelasticity Green-Naghdi theory Normal mode method Gravity Inclined load.

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