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Effects of Moringa oleifera aqueous extract on the growth performance,blood characteristics,and histological features of gills and livers in Nile tilapia

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Aquaculture and Fisheries 2024年第1期9卷 85-92页

作者： Mahamoud A.Emam Ramy M.Shourbela Waleed N.El-Hawarry seham Y.abo-kora Fatma Abdel-Monem Gad Ashraf M.Abd El-latif Mahmoud A.O.Dawood Histology Department Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Department of Animal Husbandry and Animal Wealth Development Faculty of Veterinary MedicineAlexandria UniversityAlexandria22758Egypt Pharmacology Department Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Clinical Pathology Department Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Department of Aquatic Animal Diseases and Management Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Animal Production Department Faculty of AgricultureKafrelsheikh UniversityKafr El-Sheikh33511Egypt The Center for Applied Research on the Environment and Sustainability The American University in CairoCairo11835Egypt

Moringa oleifera is well known as a highly nutritious plant and a water purifier in fish *** fish has many impressive qualities making them very suitable for ***,this study aimed to evaluate the effect of supplementation of Moringa oleifera aqueous extract(MOAE)at varying concentrations(0,100,200,and 400 mg/kg diet for 90 days)on growth performance,hematological,and some biochemical parameters of Nile ***,histological changes and immunohistochemical expression of caspase 3 in gills and livers were *** enhancements(P<0.05)in the final weight,weight gain,specific growth rate,red blood cells,hemoglobin,packed cell volume,white blood cells,and total serum protein were observed in fish fed 200 mg MOAE/kg diet compared with other ***,a significant reduction(P<0.05)of liver and kidney function tests and non-significant changes in lipid profile were *** the other hand,fish fed 400 mg MOAE/kg diet revealed disturbance in the corresponding *** histological degenerative changes were detected in the gills and liver of fish fed 400 mg MOAE/kg *** comparison,fish fed 200 mg MOAE/kg diet showed the best histo-architectures of these organs compared with other *** immune expressions of caspase 3 were determined where gills and liver of fish fed 400 mg MOAE/kg diet revealed extensive number of positive caspase 3 cells indicating severe apoptotic ***,a dietary MOAE at 200 mg/kg diet is recommended to improve the growth performance,hematological parameters,liver and kidney functions in Nile ***,caution must be considered when using MOAE at a concentration over 200 mg/kg diet.

关键词： Growth performance Liver Gills Moringa oleifera Nile tilapia

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Effect of Tilmicosin on Fetal Developments in Pregnant Female Albino Rats

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Pharmacology & Pharmacy 2016年第4期7卷 147-152页

作者： seham abo-kora Amany El-Meleh Mohamd aboubakr Department of Pharmacology Faculty of Veterinary Medicine Benha University Toukh Egypt

The effect of tilmicosin on fetal development in pregnant female rats was investigated in this study. Forty pregnant female rats were divided into four groups (each of 10 female rats). Rats in the 1st, 2nd and 3rd groups were received tilmicosin at a dose of 20, 100, 200 mg/kg·b·wt/day orally from the 6th to 15th day of gestation respectively, while the 4th group received 0.5 ml distilled water orally for the same period of gestation and was used as control group. All the pregnant female rats were sacrificed on the 20th day of gestation and their fetuses were subjected to morphological, visceral and skeletal examinations. Tilmicosin at a dose 100, 200 mg/kg·b·wt significantly decreased the number of viable fetuses;the number of resorbed fetuses was increased, and induced retardation in growth of viable fetuses;some skeletal and visceral defects in these fetuses were observed and these effects were dose dependant. It could be concluded that tilmicosin caused some abnormalities and fetal defects, so it is recommended to avoid using pregnancy.

关键词： Tilmicosin Pregnancy Anomalies Fetus

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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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Solute transport and geochemical modeling of the coastal quaternary aquifer, Delta Dahab Basin, South Sinai, Egypt

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Acta Geochimica 2024年第1期43卷 16-39页

作者： Amira Samy Mustafa Eissa seham Shahen Moustafa M.Said Rabab M.abou-shahaba Division of Water Resources and Arid Land Department of HydrogeochemistryDesert Research CenterCairoEgypt Egypt Desalination Research Center of Excellence Desert Research CenterCairoEgypt Center for Water Supply Studies S&E-Physical&Environmental SciencesTexas A&M University Corpus ChristiCorpus ChristiUSA Department of Chemistry Faculty of Science(Girls)Al-Azhar UniversityYousef Abbas StrNasr CityP.O.Box:11754CairoEgypt

The wadi dahab delta is in a dry, arid coastal zone within Egypt’s south Sinai Peninsula’s eastern portion. The primary water source is the Quaternary coastal alluvial aquifer. The groundwater salinity varies from 890to 8213 mg/L, with a mean value of 3417 mg/L. The dissolved major ions have been used to calculate the seawater mixing index(SWMI) using a linear equation that discriminates the groundwater mostly affected by water–rock interaction(SWMI 1>) and other samples mixed with Seawater(SWMI < 1). The isotopic composition of groundwater for specifically chosen groundwater samples ranges from-0.645‰ to +5.212‰ for δ^(18)O and from-9.582‰ to + 22.778‰ for δ^(2)H, where the seawater represented by a Red Sea water sample(δ^(18)O + 1.64‰-δ^(2)H + 9.80‰) and reject brine water are considerably enriched the isotopic groundwater values. The geochemical NETPATH model constrained by the dissolved significant ions, isotopes, and the rock aquifer forming minerals as phases indicate the mixing percent with the seawater ranges from 9% to 97% of seawater from 91% to 3% of original recharge water. According to the SEAWAT 3-D flow models, seawater has penetrated the Northeastern Dahab delta aquifer, with the intrusion zone extending1500 m inland. The salt dissolution, upwelling of saline water, recharge from the upstream mountain block, and seawater encroachment are the primary aspects contributing to the deterioration of groundwater quality. These findings may have significance for effective groundwater withdrawal management in arid locations worldwide with similar hydrogeological systems.

关键词： Groundwater geochemistry Seawater intrusion Solute transport SEAWAT

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Clinical profile,etiology,management and outcome of empyema thoracis associated with COVID-19 infection:A systematic review of published case reports

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Asian Pacific Journal of Tropical Medicine 2023年第8期16卷 337-346页

作者： Yasser Ali Kamal seham Abdelwakeel Abdel-Gaber Department of Cardiothoracic Surgery Faculty of MedicineMinia UniversityEl-MinyaEgypt Department of Medical Pharmacology Faculty of MedicineMinia UniversityEl-MinyaEgypt

Objective:To explore the clinical features,diagnosis,etiology,treatment,and outcomes of COVID-19 related ***:Using PRISMA statement,a systematic search of relevant case reports published between December 2019 and April 2023 was performed through seven *** collected data included demographics,clinical manifestations,diagnostic findings,treatment,and ***:Thirty-six case reports were identified with 43 cases of *** included cases had a median age of 55 years(range:12-78 years)and 79.1%(34/43)were *** majority of cases presented during hospitalization for management of acute COVID-19 infection(29/43,67.4%)and Charlson comorbidity index<3(40/43,93.0%).Pseudomonas aeruginosa was the most commonly isolated microorganism from the pleural fluid(9/43,20.9%)and 16.3%of the cases(7/43)had polymicrobial *** drainage was performed in all cases while surgery was indicated in 24 cases(55.8%).The most common complication of COVID-19-related empyema was broncho-pleural fistula(2/43,4.7%).The mortality rate was 23.3%(10/43).Sepsis and/or multi-organ failure were the most commonly reported causes of *** univariate analysis,no statistically significant risk factor for mortality was ***:COVID-19-associated empyema has a variety of predisposing factors,time of presentation,clinical features,and causative *** or minimally invasive surgical procedures are performed more frequently than isolated chest *** in COVID-19 patients worsens their prognosis and can lead to serious complications.

关键词： COVID-19 SARS-CoV-2 Empyema Microbiology Thoracic surgery

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The Effect of Project Managers’ Competencies on The Success of Development Projects in International Organizations in Yemen

The Effect of Project Managers’ Competencies on The Success...

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作者： seham Abdullah Hezam Al-Matari 山东大学

学位级别：硕士

The main objective of this study is to identify the influence of project manager’s competencies on the success of development projects in *** project manager is responsible for the success of projects and deliver projects on time,within the budget,within the quality required,and satisfy both customers and *** research is a study of the effect of the project manager’s competencies on the success of development projects in *** were collected from 112 project managers working on 30 international organizations in *** were collected through the questionnaire distributed to the organizations via the organization’s internal *** collected from organizations were analyzed by using the software SPSS *** verifying the normality,validity,and reliability of the questionnaire questions,multiple regressions were used to test the hypothesis of the *** results showed that the relationship between the competencies of project managers studied in this research（skills,knowledge and personal attitude）was very *** result showed that means of the participants’ perception about the implementation degree of project managers’ competencies items are between（3.07）and（3.79）with standard deviation ranges between（0.687）and（0.755）.This result indicates that there was an agreement on the high importance of project managers’ *** results showed that skills have a high effect on project managers’ competencies according to the overall *** result showed that means of the participants’ perception about the implementation degree of project success factors（Quality,Cost,Time,Customer Satisfaction,and Stakeholder Satisfaction）were between（2.64）and（3.68）with standard deviation ranges between（0.694）and（0.816）.This result indicates that there was an agreement on the high importance of development projects *** result showed that quality has a high effect on development projects success according to the overall re

关键词： Project Manager Competencies Skills Competencies Knowledge Competencies Personal Attitude Competencies Development Projects Success

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Cyclization of 4,5-Diamino Pyrazole Derivatives and Their Antibacterial Activities

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Chinese Journal of Chemistry 2011年第7期29卷 1451-1459页

作者： Rizk, Hala F. EI-Badawi, Mahmoud A. Ibrahim, seham A. EI-Borai, Mohamed A. Department of Chemistry Faculty of Science Tanta University Tanta Egypt

A convenient synthesis of intermediate 4,5-diamino-3-aryl-l-phenylpyrazoles 4a--4c was reported. The different cyclization reactions were carried out with chalcone, 2-mercaptoacetic acid and p-anisialdehyde, ethyl chloroformate, glyoxal and thiourea to afford different N and S containing heterocycles. The reaction conditions were compared by conventional heating and microwave irradiation. The structures of the cyclization products were de- termined by analytical and spectroscopic data. All the synthesized compounds were screened for antibacterial activities in vitro.

关键词： 4,5-diaminopyrazole cyclization fused heterocyclic ring systems microwave chemistry antibacterial activities

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Solar thermochemical reactionsⅢ:A convenient one-pot synthesis of 1,2,4,5-tetrasubstituted imidazoles catalyzed by high surface area SiO_2 and induced by solar thermal energy

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Chinese Chemical Letters 2009年第7期20卷 812-814页

作者： Ramadan A.Mekheimer Afaf M.Abdel Hameed seham A.A.Mansour Kamal Usef Sadek Chemistry Department Faculty of ScienceEl-Minia UniversityEl-Minia 61519 Egypt Chemistry Department Faculty ofScienceEl-Minia UniversityEl-Minia 61519 Egypt

A simple, convenient and efficient method for the synthesis of 1,2,4,5-tetrasubstituted imidazole derivatives using benzoin, an aromatic aldehyde, an aromatic amine in the presence of ammonium acetate catalyzed by high surface area SiO2 and induced by free solar thermal energy was reported. C 2009 Kamal User Sadek. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关键词： One-pot synthesis SiO2 Solar thermal energy Tetrasubstituted imidazole

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Seroepidemiology of hepatitis A virus in Kuwait

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World Journal of Gastroenterology 2009年第1期15卷 102-105页

作者： Jameela Alkhalidi Bader Alenezi seham Al-mufti Entisar Hussain Haifa Askar Nyingi Kemmer Guy W Neff Thuniyan Al-Ghanim GI Center & University of KuwaitPO Box 4077 Safat 13041 Kuwait University of Cincinnati Cincinnati OH 45267-0576 United States

AIM: To fi nd the current seroepidemiology of hepatitis A virus (HAV) in ***: A total of 2851 Kuwaitis applying for new jobs were ***: HAV-positive cases were 28.8%; 59% were males and 41% were females. The highest prevalence was in the Ahmadi area. High prevalence was among the group of non-educated rather than educated parents. This is the fi rst study in Kuwait demonstrating the shifting epidemiology of ***: This study reflects the need of the Kuwaiti population for an HAV vaccine.

关键词： Hepatitis A virus Fulminant Liver Failure Hepatitis A virus vaccine Kuwait

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The Impact of Some Family Variables on the Dimension of Social Responsibility

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Sociology Study 2016年第8期6卷 527-538页

作者： seham Ahmed Alazab King Abdulaziz University Jeddah Saudi Arabia

The current study discusses the social and psychological studies conducted on the concept of the social responsibility, as well as the symbolic interactive trend as a theoretical basis for interpretation; moreover, discussing the social responsibility in the light of family variables. The aim of this study is to investigate the family variables, including domicile, parents＇ education, their age, the type of work they do, family size, and family income. As to the social responsibility＇s dimensions for sample selected for this study; hence, it includes personal, ethical, national, environmental, health, and social responsibility. The current study adopted the descriptive approach along with a demographic data form and the social responsibility＇s scale. The sample selected consisted of 330 female students from various colleges within King Abdulaziz University. The results indicated that there was an impact on all the variables, thus such impact was in favor of those living in rural areas as to the ethical dimension and in favor of urban people as to the dimensions of accountability, parents＇ level of education, parents＇ seniority, working mothers, greater family size, and higher income.

关键词： Personal responsibility ethical responsibility national responsibility social responsibility environmental health responsibility

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