Now showing items 275-294 of 770

    • Gamma Irradiation of 4th Instar Larva of Angoumois Grain Moth and Effects on Parent and Their Generations 

      Boshra, Salwa A. [سلوى عزمي بشرى] ( Qatar University , 2006 , Article)
      Late fourth stage larvae of Angomous grain moth, Sitotroga cerealella (Olivier) were gamma irradiated with doses 0 ( control), 25, 50 75, 100, 125 and 150 Gy. The moths originated from larvae irradiated with 150 Gy became ...
    • Gc-ms analysis and antimicrobial activity of volatile oil of Pituranthos tortuosus (desf.) 

      Abdel Ghani, A.; Hafez, S. S.; عبد الغني, عفاف; حافظ, سامية صلاح ( Qatar University , 1995 , Article)
      Volatile oil of Pituranthos tortuosus (Desf.), family Umbelliferae was prepared in yield of (0.5%). GC-MS analysis of the oil resulted in identification of eight components. Dill apiole was the main constituent (94.76%). ...
    • Generalized Airy's- and taylor Integral Functions 

      Gabr, M. K [محمد كامل جبر]; Shalem, Sh. ( Qatar University , 1982 , Article)
      In this paper a generalized form of Airy's function has been estimated and an asymptotic expansion for one of its types is obtained. Furthermore, an improved formula could be induced to acquire the asymptotic expansion of ...
    • Generation of Sets of Sequences lsomorphic to Walsh Sequences 

      Al Cheikha, Ahmad [احمد حمزة الشيخة] ( Qatar University , 2005 , Article)
      Walsh sequences of the order 2k, k positive integer, form an additive group generated by Rademacher sequences set of ft-order. Except the zero sequence, Walsh sequences form an orthogonal set. Our present work allows us ...
    • Genetic Studies on Escherichia Coli Strains Isolated From Cases of Bovine Mastttis 

      Al Talhi, Abdullah D. [عبد الله دخيل الطلحي]; Al Bashan, Munir, M. [منير مصطفى البشعان] ( Qatar University , 2007 , Article)
      This study was carried out on 53 milk samples positive for California Mastitis Test taken from eight herds infected with clinical mastitis in Taif City. Mean Somatic cell Count (SCC) was 4, 482, 000 cells / ml. Forty-eight ...
    • Genotoxicity and Embryotoxicity of the Insecticide Primicid in Chick Embryo 

      Khalil, Ahmad M. ( Qatar University , 2000 , Article)
      Growing chick embryos were treated with primicid to examine the cytogenetic and embryotoxic effects of this insecticide. For the cytogenetic assay, eggs were injected through the air chamber with primicid at a concentration ...
    • Geochemical Model And Normalization For Heavy Metals In The Bottom Sediments, Dubai, UAE. 

      El Sammak, A.A. [عمرو عبدالعزيز السماك] ( Qatar University , 1999 , Article)
      Dubai creek can be considered as the focal point of Dubai. It has great importance for trading and aesthetic values. Total and leachable heavy metals (Cd, Co, Ni, Pb and Zn), organic carbon and total carbonate were studied ...
    • Geochemical studies using trace elements analysis of source rocks and related crude oil in the Gulf of Suez, Egypt 

      Younes, M. A. [محمد يونس]; Mostafa, A. R. ( Qatar University , 1997 , Article)
      The occurrence and distribution of trace elements in source rocks and crude oils is used to asses the process of geochemical exploration. Rock and crude oil samples representing the giant fields of the Gulf os Suez province ...
    • Geochemistry and Petrogenesis of a Late Proterozoic Volcanic Sequence in the Magal Gebriel Area, South Eastern Desert, Egypt 

      El Shazly, S. M. [سمير محمود الشاذلي]; Hegazy, H. A. ( Qatar University , 2000 , Article)
      Metabasalts and meta-andesites together with small amounts of metadacite constitute the Magal Gebriel volanic suite. Restricted amounts of unmetamorphosed rhyolitic rocks are also present. The metavolcanics show a wide ...
    • Geochemistry of biotite and its significance as a guide to the origin of the granitoid rocks of el-imra area, eastern desert, egypt. 

      Salem, A. K. A [عبد الكريم احمد سالم]; Salem, M. A.; Kabesh, M. L.; Heikal, M. A. ( Qatar University , 1988 , Article)
      Biotites from the granitoid rocks of El-Imra, Eastern Desert, Egypt have been examined. The chemical data of 8 new analyzed biotites are presented. The behaviour of major and trace elements in the examined biotites are ...
    • Geochemistry of the st. Catherine basement rocks, Sinai, Egypt 

      Abdel Khalek, M. L.; Oweiss, K. A.; Abdel Tawab, M. A.; Abdel Maksoud, M. A.; عبد الخالق, لطفي; عبد المقصود, محمد; عبد التواب, محمد; عويس, خليفة... more authors ( Qatar University , 1994 , Article)
      St. Catherine area, dominated by basement rocks encompass old continental gneisses, metasediments, greenstone belt, calc-alkaline granites (G-II-granites), rift-related volcanies (RV), and anorogenic within plate granites ...
    • Geoelectrical Study On The Area West Of Aswan Town, Egypt 

      Ibrahim, H. A. [حمزه احمد ابراهيم]; Omran, A. A.; Selim, S. A. ( Qatar University , 1992 , Article)
      A geoelectrical resistivity survey on the area west of Aswan has been conducted in order to investigate its prevailing hydrogeological and subsurface geological conditions. The study demonstrates the occurrence of a probably ...
    • Geologic evolution of the Dukhan salt flats in Western Qatar Peninsula, Arabian Gulf 

      Sadiq, A. Ali. M. [عبد العلي محمد صادق] ( Qatar University , 2003 , Article)
      Photo-interpretation of landsat Thematic Mapper images of the Dukhan salt flats, on the west coast of Qatar, reveals several deposit zonations within the salt flats. The deposit zonations occupy a restricted sub-evaporite ...
    • Geologic setting of the St. Catherine basement rocks, Sinai, Egypt 

      Abdel Maksoud, M. A.; Khalek, M. L. Abdel; Oweiss, K. A.; عبد المقصود, محمد علي; عبد الخالق, محمد لطفي; عويس, خليفة عبد الفتاح... more authors ( Qatar University , 1993 , Article)
      St. Catherine area, some 900 km in size, is dominated by basement rocks Encompassing old continental gneisses, metasediments, greenstone belt, calc-alkaline granites (G-II-granites), rift-related volcanics (RV), and ...
    • Geological interpretation of gravity data On a part at the western region of the High Dam Lake, South Egypt 

      Ibrahim, H. A. [حمزه احمد ابراهيم] ( Qatar University , 1999 , Article)
      The structural setting of the area was determined using the horizontal gradient of the gravitational field and the statistical analysis of its maximum trends. The gravitational field was resolved into its two components; ...
    • Geology of wadi atalla - el missikat area, eastern desert, egypt. 

      El Kassas, I. A. [ابراهيم علي القصاص]; Bakhit, F. S. ( Qatar University , 1989 , Article)
      Wadi Atalla-El Missikat area covers about 2,000 Km2 in the central Eastern Desert of Egypt, between latitudes 26° 10' and 26° 40' N, and longitudes 33° 15' and 33° 40' E. The area is mainly formed of basement complex except ...
    • Geology Of Wadi Sidri Radioactive Ocurrences, Western Sinai, Egypt 

      El Kassas, I. A. [ابراهيم علي القصاص] ( Qatar University , 1995 , Article)
      Geologic and radiomclric investigations have been carried out in the environs of Wadi Sidri in Western Sinai, applying a combination of various geological, geophysical and gcochcmical techniques. This work revealed the ...
    • Geology, Petrography, Geochemistry And Petrogenesis Of The Egyptian Younger Granites 

      Nowier, A. M. [عبد الحميد محمد نوير]; Sewifi, B. M.; El Ela, A. M. Abu ( Qatar University , 1990 , Article)
      One hundred and thirty nine new chemical analyses of major and trace elements for 26 plutons and masses pertaining to the Egyptian Younger Granites are presented together with the chemical analyses of 13 biotites, 32 ...
    • Geomagnetic Trend Analysis In The Fayum District, Western Desert, Egypt 

      El Awady, M. M. [محمد محمد العوضي]; Bakrah, A.; El-Etr, H. ( Qatar University , 1984 , Article)
      The present paper contains brief results of the trend analysis of the aeromagnetic survey in the Fayum District, Western Desert, Egypt. The trend analysis was the constructed magnetic maps which included the total magnetic ...
    • Geomorphology of the Nagada Region Upper Egypt 

      Yehia, M. A. [محمد عادل يحيى] ( Qatar University , 1982 , Article)
      Detailed geomorphological study of the Nagada region, west of-the Nile enables us to better understand the main landfonns in this part of Upper Egypt. Six geomorphic features are recognized including: the Thebaid plateau; ...