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السجلات المعروضة 2203 -- 2222 من 4358

    • Vibrational Analysis Of TaBr5 

      Nour, E. M. [المتولي السيد نور] ( Qatar University , 1987 , Article)
      Vibrational analysis for TaBr5 is achieved on the basis of D3h symmetry and employing GF matrix method. Each vibration is quantitatively assigned according to the calculated values of the potential energy distributions. ...

    • Vibrational Mechanics by Maple Practical Applications 

      Bahrami, Mansour Nikkhah; Afshari, Behzad Mohasel; Khoshnevisan, Mohammad; بهرامي, منصور نيكخواه; أفشاري, بهزاد محصل; خوشنويسان, محمد... more authors ( Qatar University Press (QU Press) , 2023 , Book)
      The book “Vibrational Mechanics by Maple Practical Applications” is designed to assist undergraduate and postgraduate students majoring in physics, mechanical engineering, electromechanical and aerospace engineering in ...

    • Virtual Reality Module Depicting Catheter-Associated Urinary Tract Infection as Educational Tool to Reduce Antibiotic Resistant Hospital-Acquired Bacterial Infections 

      Mekki, Yosra M; Mekki, Mohamed M; Hamammi, Mohamed; Zughaier, Susu ( Qatar University Press , 2020 , Poster)
      Introduction: Virtual reality (VR) and augmented reality (AR) are used as simulation models in student-patient interactive medical education and shown to enhance learning outcomes. The rise in global burden of infectious ...

    • Virtual screening of anti-viral drugs and natural compounds for potential inhibition of the novel SARS-CoV-2 spike receptor-binding domain 

      Mathew, Shilu M.; Benslimane, Fatiha; Althani, Asmaa A.; Yassine, Hadi M. ( Qatar University Press , 2020 , Poster)
      Background: The spike (S) protein of SARS-CoV-2 harbors the receptor-binding domain (RBD) that mediates the virus's entry to host cells. The aim of this study was to identify novel inhibitors that target the RBD domain of ...

    • Viscosity Of Hydrocarbon Liquids Saturated With Gas 

      Al Harbi, Dulaihan K. ( Qatar University , 1995 , Article)
      Experimentally measured kinematic viscosities are reported for benzene, cyclohexane and n-heptane saturated with hydrogen, nitrogen and carbon dioxide. A Zeitfuchs cross-arm viscometer suspended in a unique design ...

    • Viscous Behavior of Dilute CMC Salt Solution Before and After Photodegradation 

      El Ashhab, F. [فتحي الأشهب]; Sheha, L. [ٍالبني عبد العزيز شيحا]; Sheltami, R. M. [رشا محمد الشلطامي]; Feituri, Z. M. [زكريا الفيتوري] ( Qatar University , 2006 , Article)
      Photodegradation curve of carboxymethylcellulose (CMC) in aqueous solution has been reported. Densities and solution viscosities of very dilute CMC salt solution before and after UV-irradiation have been measured. ...

    • VISUALIZATION OF FACTOR VIII WITH FLOW-CYTOMETRY AS A TOOL FOR NOVEL GENE THERAPY APPROACH IN HEMOPHILIA A 

      Al-Mohannadi, Anjud Khamis; Deola, Sara; Malki, Ahmed ( Qatar University Press , 2020 , Poster)
      Haemophilia A is a genetic X-linked disorder, characterized by coagulation Factor VIII (FVIII) deficiency and leading to pathological bleedings. The disease occurs in a rate of 1 in 5000 males' births. The treatment is ...

    • Vitamin - a and limb regeneration in stages of the egyptian toad, bufo regularis Reuss-histological study 

      Michael, M. I. [ميلاد اسحق ميخائيل]; El-Mekkawy, Desouki A.; Sayed-Ahmed, Abdulla A.; Mahmoud, Gamal A. ( Qatar University , 1995 , Article)
      The histogenesis of regenerated limbs, of both control and treated /larvae/ with 30 I.U./ml of retinol palmitate for 3 days, was studied in two larval stages (viz. stages 53 & 54) of the anuran amphibian, Bufo regularis ...

    • Vitamin D is associated with improved lung function but not with asthma, emphysema and bronchitis 

      Alobahi, Asma; Yusuf, Sumaya; Dookhy, Zainab; Ganji, Vijay ( Qatar University Press , 2020 , Poster)
      Background: Hypovitaminosis D has been linked to several non-bone related diseases. Relation between serum 25-hydroxyvitamin D [25(OH)] and lung function and lung diseases has received less attention. Methods: Data from 3 ...

    • Volatile Components of the Phaeophyceae Hormophysa cuneiformis Growing Along Qatar Coasts 

      El Hattab, M.; Al Easa, Hala S.; Tabaries, Annie; Kornprobst, Jean-Michel; Piovetti, Louis; الحطاب, محمد; العيسى, هالة سلطان; تبريس, آني; كورنبروبست, جين ميشيل; بيوفيتي, لويس... more authors ( Qatar University , 2007 , Article)
      The present work deals with the study on volatile compounds from the brown alga Hormophysa cuneiformis collected from the Northwest coast of Qatar on May 2002. Two extraction methods have been used: conventional hydrodistillation ...

    • The Voltage Collapse Problem Based On The Power System Loadability 

      Alammari, R. A. ( Qatar University , 1997 , Article)
      This paper addresses the problem of voltage instability at which the power system reaches its maximum admissible load. A voltage collapse proximity indicator (VCPI) is derived and its performance is investigated. The VCPI ...

    • Voltage Stability Margin Identification Using Local Measurements And Linear Kalman Filter 

      Alammari, R. A. ( Qatar University , 2002 , Article)
      Voltage stability investigation is of a great importance for long-term electric load expansion as well as power system operation. This paper presents a new algorithm for identification of voltage instability in a specified ...

    • Vulnerabilities of the SARS-CoV-2 virus to proteotoxicity - opportunity for repurposed chemotherapy of COVID-19 infection 

      Rabbani, Naila; Thornalley, Paul John; Al-Motawa, Maryam; Xue, Mingzhan ( Qatar University Press , 2020 , Poster)
      The global pandemic of COVID-19 disease caused by infection with the SARS-CoV-2 coronavirus, has produce an urgent requirement and search for improved treatments whilst effective vaccines are developed. A strategy for ...

    • Warming up for athletic events 

      Hussain, Helmi ( Qatar University , 1985 , Article)
      Warming up is a widely accepted procedure preceding every type of athletic events, although objective evidence supporting the use of warm up is limited. Coaches, physical educators and athletes of almost every athletic ...

    • Water Conditions And Proline Content In Shade And Sun Plants 

      Batanouny, K. H. [كمال الدين حسن البتانوني]; Hassan, A. H.; Abu Sitta, Y. M. ( Qatar University , 1984 , Article)
      Different parameters of the water conditions (Water content, water saturation deficit, osmotic pressure of the cell sap and partial osmotic pressure due to sugars), chlorophyll and proline contents were investigated in sun ...

    • Water Quality Of The Area West Of Karak City, Jordan 

      El Nakhal, Hamed A. [حامد احمد النخال]; Ashour, Mohamad M. ( Qatar University , 1986 , Article)
      The water quality of some wells, wadis and springs in the area west of Karak City has been evaluated for irrigation and domestic uses, by the application ofWilcox (1955) and Doneen (1961) methods, as well as the standards ...

    • Water Relations Of Some Woodlice (Oniscidea) From Arid And Mesic Environments 

      Constantinou, c. [س .كونستانتينيو] ( Qatar University , 1987 , Article)
      The desert woodlouse Porcellio evansi from Bahrain and Qatar has a transpiration rate as low or lower than recorded from other desert species. The synanthropic mesic Porsellionides pruinosus has a much higher rate, while ...

    • Water Supply from Turkey to Cyprus Island with Suspended Marine Pipeline 

      Ozturk, Izzet; Agiralioglu, Necati; Ozdemir, Omer; Akinci, Nasir ( Qatar Univesrity Press , 2020 , Conference Paper)
      More than 90% of the water requirement for the Turkish Republic of Northern Cyprus (TRNC/KKTC) was being supplied from groundwater resources, while the rest was being provided from surface waters and seawater until the ...

    • Watermain Breaks in Hong Kong: Causes and Consequences 

      Ahmad, Tayyab; Shaban, Ibrahim; Zayed, Tarek ( Qatar University Press , 2023 , Conference Paper)
      Watermain failure is a complex problem associated with significant socio-economic and environmental impacts. The complexity of this problem originates from many factors of physical, operational, and environmental nature. ...

    • Weed Communities Of Date Palm In Eastern Arabia 

      Shaltout, K. H. [كمال حسين شلتوت]; El Halawany, E. F. ( Qatar University , 1992 , Article)
      The present study deals with the recognition and description of the weed communities of date palm plantations in Al-Hassa Oasis, . Eastern Arabia. Thirty three communities are recognized. They are classified, after the ...