Browsing University Publications by Title

Now showing items 403-422 of 4419

    • Conjugation of CTGF with Reduced Graphene Oxide Nanoparticles for the development of wound healing hydrogel patch 

      Syed, Raza ur Rehman; augustine, Robin; Zahid, Alap ali; Hasan, anwarul ( Qatar University Press , 2020 , Poster)
      Non-healing chronic wounds are the key concern in type-2 diabetes that frequently leads to chronic infections, finally causes amputation of limbs, organs etc. Decrease in the proliferation and migration of cells such as ...

    • Constituents of catha edulis (alkaloids, triterpenoids and related substances and saponins) 

      Rizk, A. M. [عبد الفتاح محمد رزق]; Mobarak, Z. M.; El-Shihi, T. ( Qatar University , 1989 , Article)
      The study of the alkaloids of khat samples from Egypt and Yemen revealed qualitative and quantitative differences. Cathine and the dimer of cathinone occured in both samples, while norephedine was detected only in Yemen ...

    • Constituents Of Centaurea Species 

      Al Easa, H. S. [هالة سلطان العيسى]; Rizk, A. M. ( Qatar University , 1992 , Article)
      A comprehensive review of Centaurea species including all the isolated consituents is given. The biological activities of the studied species are also reported.

    • Constituents Of Cymbopogon Species 

      Heiba, H. I. [حلمي اسماعيل هيبة]; Rizk, A. M. ( Qatar University , 1986 , Article)
      A comprehensive review of the Cymbopogon species including the essential oils and their constituents is given. An account of the other components viz. non volatile terpenoids and phenolic compounds is also given. The ...

    • Constituents Of Green Beans Phaseolus Vulgaris (Lipids And Flavonoids) 

      Rizk, A.M.; Ismail, S.I.; Azzam, S.A.; Wood, G. ( Qatar University , 1992 , Article)
      Chemical study of the lipid fraction resulted in the isolation and identification of a hydrocarbon fraction (n-Czg -0-033); an aliphatic alcohol fraction (C^, Czp, €30) and a sterol fraction (stigmasterol and sitosterol). ...

    • Constituents of plants growing in qatar part xxvii: flavonoids Of cymbopogon parkeri 

      Rizk, A. M. [عبد الفتاح محمد رزق]; Hammouda, F. M.; Ismail, S. I.; Kamel, A. S.; Rimpler, H. ( Qatar University , 1995 , Article)
      The study of the flavonoids of Cymbopogon parkeri resulted the isolation and indentification of tricin and isoorientin. Three other flavonoids have been isolated and partially identified.

    • Constituents of plants growing in qatar x.* seasonal variations of the volatile oil of cymbopogon parkeri 

      Rizk, A. M. [عبد الفتاح محمد رزق]; Sandra, P.; Mashaly, M.; Heiba, H. I. ( Qatar University , 1985 , Article)
      The seasonal variation of the volatile oil of Cymbopogon parkeri Stapf. was studied. The oil content is higher during the hot dry season than during the humid hot season and the cold season. No qualitative differences among ...

    • Constituents of plants growing in qatar xxiii. Flavonoids of francoeuria crispa 

      Rizk, A. M. [عبد الفتاح محمد رزق]; Hammouda, F. M.; Ismail, S. I.; Hussiney, H. A. ( Qatar University , 1993 , Article)
      Investigation of the flavonoid constituents of Francoeuria crispa, resulted in the isolation and identification of four flavonoids: quercetin, qucrcetin-3-O-gIucoside, quercetin-7-0-glucoside and quercetin-3-methyl ether.

    • Constituents of plants growing in Qatar xxiv phytochemical investigation of salvia aegyptiaca L. 

      El Missiry, M. M. [مصطفى محمود المسيري]; Hussiney, H. A.; Ismail, S. I.; Radwan, H. M.; Rizk, A. M. ( Qatar University , 1994 , Article)
      The study of the flavonoids revealed the isolation and identification of luteolin, luteolin 7-O- glucoside, apigenin and apigenin 7-0 glucoside; their identity was proved by m.p., TLC, UV, IR and MS. Moreover, a coumarin ...

    • Constituents of plants growing in qatar xxv flavonoids of Picris Radicata (forssk.) Less. 

      Al-Easa, Hala S.; Kamel, Alaa; Hussiney, Hussiney A. ( Qatar University , 1994 , Article)
      Four flavonoids were isolated from the plant and were identified as apigenin, chrysin 7-glucoside, leuteoline and luteolin 7-glucoside.

    • Constituents of plants growing in Qatar: part xxviii. Constituents Of cistanche phelypaea 

      Deyama, T.; Yahikozawa, K.; Al-Easa, H.S.; Rizk, A.M. ( Qatar University , 1995 , Article)
      Ten compounds were isolated from the methanolic extract of the aerial parts of Cistanche phelypaea (Orobanchaceae) and identified as echinacoside (1), tubuloside A (2), tubuloside E (3), acteoside (4), 2'-acetylacteoside ...

    • Constitution-making in the 21st century 

      Saunders, Cheryl ( Bloomsbury Qatar Foundation Journals , 2012 , Article)
      Constitutions have been made or changed in major ways in more than half the countries of the world in recent decades. This article deals with contemporary approaches to constitution-making, organising the analysis around ...

    • Constitutional rights to supervised drug injection facilities in Canada 

      Bowal, Peter; Horvat, Kelsey ( Bloomsbury Qatar Foundation Journals , 2013 , Article)
      On September 30, 2011, the Supreme Court of Canada ordered the government of Canada to continue to exempt Vancouver's supervised narcotic injection facility from Canada's criminal drug laws. The controversial clinic, known ...

    • Construct Validity in Psychology and Educational Measurement 

      Al Mannai, Abdullah Salem ( Qatar University , 1992 , Article)

    • Constructability and Economical Comparison Between Two Proposed Permanent Shoring Systems in Qatar: A Case Study 

      Alfarra, Mohammed; Sadeq, Mohammed; Sadek, Husam ( Qatar Univesrity Press , 2020 , Conference Paper)
      This paper introduces the constructability and economic feasibility study of using one of the proposed two types of permanent shoring system for a highway project in Qatar. The cast-in-situ cantilever retaining wall and ...

    • Construction mediation as a developmental process 

      Sidoli del Ceno, Julian ( Bloomsbury Qatar Foundation Journals , 2013 , Article)
      This paper seeks to argue that mediation has been hitherto conceived in the construction industry, and indeed by practitioners in other related disciplines such as property management, as largely a “problem-solving” ...

    • Construction of Modified CuO-Co3O4-ZnO Electrode for Acetone Detection in Breath 

      Elsafi, Alaa Mohamed; Krishnasamy, Vinotha; Kannan, Karthik; Cabibihan, John-John; Al-Ali, Abdulaziz Khalid; ... more authors ( Qatar University Press , 2020 , Poster)
      Acetone in breath can be used as a biomarker for noninvasive detection of diabetes. The acetone level in breath is substantially high for diabetic patients. In this study, mixed metal oxide nanocomposite of CuO-Co3O4 -ZnO ...

    • Construction Simulation Using Virtual Reality 

      Naji, Khalid K.; Najafi, Fazil ( Qatar University , 1996 , Article)
      Two main simulation methodologies namely, the network-based simulation and the graphical simulation technique are being used in the construction industry. While the network-based simulation technique, which was originally ...

    • Consumer Behavior in Grocery Shopping: Qatari Community during the GCC Blockade 

      Eissa, Eiman Abdel Maksoud ( Qatar University Press , 2020 , Poster)
      While Qatar had the highest GDP in the world in 2016, it faced the dilemma of a blockade in June 2017. This had a direct effect on the Qatari community who united and showed clear signs of patriotism. Consumers turned from ...

    • The Contagion "Disease" that affects Foreign direct investment In the MENA countries 

      Habash, Nojoud S. ( Qatar University , 2007 , Article)
      This paper aims to analyze the dynamic relationship between foreign direct investmer and different kinds of risks in the MENA countries, using the vector autoregressive tec\ on the country level for 11 MENA countries during ...