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Now showing items 21-30 of 42
Constituents of Plants Growing in Qatar, Part XXX: A New Iridoid from Cistanche Phelypaea (L) COUT
(1995 , Article)
New iridoid named phelypaeside (1) was isolated from the dried aerial parts of Cistanche phelypae (Orobanchaceae) growing in Qatar
Phospholipid fatty acid composition of nine marine sponges from Qatar
(
IFREMER
, 1998 , Conference Paper)
Phospholipid fatty acid composition was studied in sponge from Qatar including eight Demospongia and one Calcarea. More than 60 fatty acids were identified in each species as methyl esters and N-acyl pyrrolidides by gas ...
Triterpenoids from Salvia aegyptiaca
(1993 , Article)
Newly isolated secondary metabolites from Salvia aegyptiaca growing in Qatar
Constituents of Plants Growing in Qatar, Part XXVI: Phytochemical investigation of Rumex vesicarius
(1995 , Article)
The study of Rumex vesicarius revealed the isolation and identification of four anthraquinones (chrysoplanol (I), emodin (II), physcion (III) and rhein (IV) and seven flavonoids (apigenin (V), isoorientin (VI), isovitesin ...
Biochemical And Environmental Studies On Hepatoma Patients In Egypt
(
Qatar University
, 1994 , Article)
The present study was carried out on 102 hepatoma patients collected mainly from the National Cancer Institute, Cairo University, during the period 1988-1991 . Environmental and personal data were collected for each patient. ...
REMOTE MONITORING AND CONTROL OF MICROCOMPUTER RAISED DATA ACQUISITION SYSTEMS
(
Blackwell Publishing Ltd
, 1994 , Article)
Ground- and excited-state properties of some 3,4-dihydro-1-(2-p-substituted benzylidene)naphthalenones: substituent and environmental effects
(
John Wiley & Sons, Ltd.
, 1997 , Article)
Electronic absorption and steady-state fluorescence emission of seven 3,4-dihydro-1-(2-p-substituted benzylidene)naphthalenones (1–7) show sizable solvent dependence. The charge-transfer (CT) absorption maxima of these ...
Optical and electrical properties of a new polymer
(
John Wiley & Sons, Inc.
, 1997 , Article)
Thin film of poly (5-isopropylidenecyclo-1,4-vinylene-2,3-dicarboxylicacidamide-s-methyl hydrazinecarbodithioate) (II) (Scheme 1) of 5 μm thickness was prepared. The dielectric properties of the prepared sample were studied ...
Constituents of plants growing in Qatar XX. Phytochemical investigation of anastatica hierochuntica: NOTE
(
Taylor & Francis
, 1993 , Article)
A study of the lipid fraction of Anastatica hierochuntica (Cruciferae) resulted in the isolation of hydrocarbon (mainly C25H52, C29H60 AND C31H64) AND sterol fractions (P-sitosterol, campesterol, stigmasterol AND cholesterol). ...
Constituents of plants growing in Qatar - Part XIX. Flavonoids of Glossonema edule N. E. Br.
(
Springer Nature
, 1990 , Article)
The study of the flavonoids of the unripe fruits of Glossonema edule, resulted in the isolation and identification of apigenin 6,8-di-C-glucoside (violanthin) and luteolin 7-O-glucoside. © 1990 Kluwer Academic Publishers.