Now showing items 1226-1245 of 4355

    • Mesozoic Igneous Activity In Egypt 

      Meneisy, M. Y. [محمد يسري منيسي] ( Qatar University , 1986 , Article)
      A geochronological sequence of the main phases of igneous activity in Egypt during the Mesozoic is presented in this paper. This is essentially based on scrutinized isotopic age data. New K / Ar ages are also included. Three ...
    • Metabolic Effects Of Cyproterone Acetate And Corticosterone In The Chicken Callus Domesticus 

      Saleh, F. [فؤاد صالح]; Ezzat, A. R. ( Qatar University , 1990 , Article)
      The metabolic effects of corticosterone were compared with those of cyproterone acetate , a steroidogenic inhibitor with suggested corticoid-like effects. Corticosterone significantly increased serum levels of ...
    • Metagenomic Analysis of Oral Microbiome during pregnancy 

      Farah, Huda Mohamed; Elamin, Muram Elmubarak; Nader, Rahaf Nader Nader; Alabsi, Rana Said; Bouabidi, Salma Bouazza; ... more authors ( Qatar University Press , 2021 , Poster)
      Pregnancy is a dynamic physiological process associated with significant hormonal, immune and metabolic changes to support the growth and development of the fetus. Several studies have highlighted the role of gut microbiota ...
    • Metalinguistic Knowledge And Formal Functional Proficiency In English: The Case Of Basic Education Stage Learning In Jordan 

      Abdul Fattah, Hussein S.; محمد, حسين عبد الفتاح ( Qatar University , 1998 , Article)
      The present study aimed at assessing Jordanian 10th graders' metalinguistic knowledge of 15 English grammatical concepts or categories via rule description and exemplification as well as the link between the achieved ...
    • method validation of drug quantification poster 

      Mohamed Atia, Fathy Atia; Ahmadi, Ahmad Ali; AlSafran, Mohammed ( Qatar University Press , 2020 , Poster)
      A lowest detection limit with straight linearity were obtained by developing a method to analyze Phenacetin (Phe) in both aqueous and organic extraction by using Liquid chromatography Triple Quoadrpole mass with electrospray ...
    • Methylated Flavonoids From Artemisia Monosperma 

      Ismail, S. I. [شمس الدين امبابي اسماعيل]; Hammouda, F. M.; Rizk, A. M.; Hassan, N. M. ( Qatar University , 1989 , Article)
      Investigation of the flavonoid constituents of Artemisia monosperma resulted in the isolation and identification of four methylated flavonoids: quercetin 3,3',4'-trimethylether, diosmetin (luteolin 4'-methylether), ...
    • Microbial utilization of some agricultural And agro-industrial waste products for the Production of single cell protein (scp). 

      Abo Hamed, N. A. A.; أبو حامد, نبيل أبو القاسم ( Qatar University , 1993 , Article)
      The dried residues of com crop (com straw) were hydrolysed by 0.5 NH2SO4. Saccharomyces cerevisiae has been allowed to grow on media containing different concentrations of the com straw hydrolysate (CSH). The optimal ...
    • Microcomputer Aided Selection Of Robot Manipulators 

      Abdel Rahman, T. M ( Qatar University , 1991 , Article)
      This paper presents two programs for microcomputer aided assessment of the performance of robot manipulators. The first program automatically generates robot models based on user-supplied kinematic parameters. The program ...
    • Microdetermination Of Some Organic Nitriles Using The Cyanide Ion Selective Electrode 

      Hassan, S. S. M. [سعد السيد محمد حسن] ( Qatar University , 1985 , Article)
      The response characteristics of the solid state cyanide ion selective electrode toward some organic nitriles are investigated. In 10 M KOH solution, the electrode exhibits near Nemstian response over the range of 10~2 to ...
    • Microfacies of the Upper Cretaceous-Lower Tertiary Rocks of Um Rijam Area, South Jordan 

      Youssef, M. I. [مراد يوسف] ( Qatar University , 1982 , Article)
      This paper deals, for the first time, with the microfacies of the Upper Cretaceous - Lower Tertiary rocks of south Jordan. Twenty three microfacies associations are recognized, described, discussed and illustrated. This ...
    • Micromodel Study on Pore Scale Mechanisms Associated with Permeability Impairment in Porous Media 

      Nishad, Safna; Al-Raoush, Riyadh ( Qatar University Press , 2020 , Poster)
      Recently, researchers are attracted towards the gas production from hydrate bearing sediments considering its abundance in marine continental margins and persisting demand for alternate energy. Dissociation of hydrate into ...
    • Microplastics in the beach sediments around the Ras Rakan Island, Qatar 

      Subramanian, Veerasingam; Aboobacker, V.M; Giraldes, A.E.; Dib, S; Al-Khayat, Jassim; ... more authors ( Qatar University Press , 2021 , Poster)
      The ubiquitous microplastic (MP) pollution is an emerging environmental issue in the marine environment. In this study, historical accumulation trends of MPs in the beach sediments around the Ras Rakan Island of Qatar have ...
    • Microscopic Study Of The Rabbit Pancreas After Vagotomy 

      Al Muhtaseb, M. H. [محمد هاشم المحتسب]; Ali, Khalid A. ( Qatar University , 1997 , Article)
      The microscopic study of the morphological changes in the rabbit pancreas were investigated after vagotomy. Structural changes were observed in the pancreatic acinar cells and in the islets of langerhans two and three weeks ...
    • Microwave Spectra of 13CH3C15N and 13CH3 13C 15N Molecules In the Frequency Range 17-95 GHz 

      Al Share, M. [محمد الشرع] ( Qatar University , 2002 , Article)
      Some microwave frequencies of the v^ + Vg vibrational combination band for the two isotopes CH^C N and CH^ C N of methyl cyanide were measured in the frequency range 17-95 GHz, for the transitions AJ = 1<-0, AJ = 2<-1, AJ ...
    • Middle-Upper Devonian And Lower Carboniferous Miospore Assemblages From Western Desert Of Egypt 

      El Ghazaly, G. [جمال عبد المجيد الغزالي]; Ali, S. M. ( Qatar University , 1985 , Article)
      Important morphological features of some spore assemblages from Middle-Upper Devonian and Lower Carboniferous of Western Desert of Egypt are described. Comparing the present assemblages with those obtained from other ...
    • Military Fuel Cell-Based Vehicles: Modular Power DC-DC Converter System 

      Aboueata, Walid Mahmoud; Massoud, Ahmed; Al-Obaidi, Sinan ( Qatar University Press , 2021 , Poster)
      Electric Vehicles (EVs) have attracted researchers' attention to further develop and enhance this strategic area. Compared to fuel-based vehicles, EVs are more in demand nowadays due to their high performance and modern ...
    • Mineral analysis of soil, euphorbia hirta l. And mycoflora from the industrial Yanbu City, Saudi Arabia 

      Hashem, Abdulwahab R. [عبد الوهاب رجب هاشم بن صادق]; Al-Farraj, M. M. ( Qatar University , 1995 , Article)
      Soil and Euphorbia hirta L. samples were collected from five localities from the industrial Yanbu city Saudi Arabia, and analysed for their metal and fungal flora. Soil type is sandy, alkaline and contained low percentage ...
    • Mineral Content Of Soil And Wild Plants From Saudi Arabia 

      Hashem, Abdulwahab R. [عبد الوهاب رجب هاشم بن صادق] ( Qatar University , 1996 , Article)
      Soil and wild plant samples were collected from different localities from the industrial Yanbu city, Saudi Arabia, and analyzed for their mineral content. Soil samples from the tested localities differed greatly and contained ...
    • Mineralogical and Chemical Properties of El-Fa Youm Clays 

      Abdel Maksoud, M. A.; Ebied, E. A.; Sabarah, B. A.; عبد المقصود, محمد علي; صبرة, برى عبد الغني; عبيد, إلهام أحمد... more authors ( Qatar University , 1993 , Article)
      El-Batts Demo Area constitutes a part of El-Fayoum province in Egypt, it is dominated by clay formations 17 meters thickness, covered in part by a thin layer of Pleistocene deposits. XRD studies reveal that smectite is ...
    • Mineralogical and Geochemical Compositions of Modern Bivalve Shells from The Mediterranean Coast Of Egypt 

      Holail, Hanafy [حنفي محمود هليل]; Tony, R. ( Qatar University , 1993 , Article)
      The stable isotopic (8 ^C and 8^O) and elemental (Sr and Mg) compositions are presented for marine mollusc Carditacea and Solenacea shells collected off the Mediterranean coast of Egypt. Based on shell microstructures and ...