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Heterocyclic Aminoacrylate Esters Of Potential Biological Activity
(
Qatar University
, 1985 , Article)
This work describes the synthesis of N-substituted piperidyl 2-benzoxazole acrylates (la-d); 2-benzothiazole acrylates (2a-d); 2-furyl acrylates (3a-d) and 2-thiophene acrylates (4a-d). The esters of 3-quinuclidyl (Ie, 2e, ...
A comparative study of the effects of clumping, substrate, light, depth of burial and soil moisture upon the germination of seeds of weeds and crops grown in the sudan gezira.
(
Qatar University
, 1985 , Article)
The influence of the number of seeds per clump upon germination of oryza sativa L., Gossypium hirsutum L., Brachiaria eruciformis (Sm.) Griseb, Dinbera retroflexa (Vahl) Panz. and Echinochloa colonum (L.) Link was investigated ...
Indecomposable Representations Of Order Of E6
(
Qatar University
, 1985 , Article)
The extended Dynkin diagram
is a valued graph. We are going to construct a Baechstrom order A associateed to Eg. We prove, by constructions, that the order A of infinite lattice-type but can be listed (tame-type), i.e., ...
Studies On The Trematodes Of The Genus Enenterum Linton, 1910 (Opecoelidae) And The Oenus Pseudocreadium Layman, 1930 (Lepocreadiidae) From Some Red Sea Fish
(
Qatar University
, 1985 , Article)
The genera Enenterum and Pseudocreadium are reviewed. It is suggested that Pseudocreadium indicum Madhavi, 1972 should be considered a synonym of P. balistes Nagaty, 1942. Enenterum pimelopteri Nagaty, 1942, is redescribed ...
Constituents of plants growing in qatar x.* seasonal variations of the volatile oil of cymbopogon parkeri
(
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 ...
Concerning Sequential Spaces
(
Qatar University
, 1985 , Article)
In this paper, important notions concerning sequential spaces are clarified new ideas, one of which is a complete and direct proof of the fundamental theorem characterizing sequential spaces, are introduced.
Microdetermination Of Some Organic Nitriles Using The Cyanide Ion Selective Electrode
(
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 ...
Botanical Exploration Of Sinai
(
Qatar University
, 1985 , Article)
The history of the botanical exploration of Sinai has been reviewed. It has been divided into the following periods:
I. Expeditions in the eighteenth century.
II. Exploration from 1800 till the publication of "Florula ...
Stratigraphy And Petrology Of The Eocene Rocks At Maghagha (East And West), Nile Valley, Egypt
(
Qatar University
, 1985 , Article)
Combined paleontological and petrological studies on the Eocene rocks at Maghagha revealed that the succession belongs to one biostratigraphic zone; the Numrnulites gizehensis gizehensis zone. Nummulites striatus was ...
Evaluation Of Soil And Water Resources In Wadi Wardan, Sinai, Egypt, Using Electrical Resistivity Method
(
Qatar University
, 1985 , Article)
A number of 15 Vertical Electrical Soundings were carried out in the Delta of Wadi Wardan, on the western coastal zone of Sinai, about 55 km south of Suez. The study objectives were to find out the change in thickness of ...