https://dspace.univ-ouargla.dz/jspui/handle/123456789/3976 2026-04-29T16:45:46Z 2026-04-29T16:45:46Z Ghania ANNOU Aminata OULD EL-HADJ KHELIL https://dspace.univ-ouargla.dz/jspui/handle/123456789/6320 2019-05-08T08:09:05Z 2012-01-01T00:00:00Z

Titre: MECANISES ADAPTATIFS DE L’HALOPHYTE SPONTANEE Sueada mollis SOUS DEUX REGIMES HYDRIQUES DIFFERENTS DE LA REGION DE OUARGLA Auteur(s): Ghania ANNOU; Aminata OULD EL-HADJ KHELIL Résumé: Some aspects of spontaneous resistance of halophytes growing in the region of Ouargla were studied. The species selected are: Suaeda mollis, and for two periods (winter and summer) and two water regimes (continuous and discontinuous). The physico-chemical analyses of the rhizospheres indicates that the soil of Chott el Ain Beida is more salty than the farm which showed a variability of salinity as a result of irrigation. Testing of these species have yielded some information concerning the effect of salt on the mineral composition of different organs, their water, their content in soluble carbohydrates, proline and protein as a function of water regime. The Hydromineral status identifies the adaptive mechanisms of plants. This is the compartmentalization (inclusion) for Suaeda m. Proportionality between changes in the content of salt in rhizospheres with the evolution of the species content of toxic ions and compatible solutes such as total soluble sugars, proline and proteins is generally found. These elements are fragmented throughout the entire plant by the sequestration of toxic ions in older leaves, young leaves then benefit from increased protection. These in part accumulate against preferably compatible solutes contributing to osmotic adjustment. Description: AST Annales des Sciences et Technologie

2012-01-01T00:00:00Z Thouria CHOHRA Mohammed Tayeb MEFTAH https://dspace.univ-ouargla.dz/jspui/handle/123456789/6322 2019-05-08T08:07:15Z 2012-01-01T00:00:00Z

Titre: Low-frequency electric microfield distribution in neutral-ion plasmas Auteur(s): Thouria CHOHRA; Mohammed Tayeb MEFTAH Résumé: The knowledge of the electric microfield distribution in multicomponent cold plasma is a necessary condition to solve several problems. In particular, the calculation of the spectral line shapes for an ion, taken as radiator in plasma consisting of neutrals and ions point is one of these problems requiring such distribution. In this work, we are interested in the electric microfield distribution in two-component cold plasma. To reach this goal, we used a useful method based on ”cluster expansion”, widely known in statistical mechanics, in the independent particle approximation. Here we only use the first term of the Baranger-Mozer formalism. The main interactions used are ion-ion and ion-neutral interactions. Description: AST Annales des Sciences et Technologie

2012-01-01T00:00:00Z Khaled SEKKOUM Hadja Mebarka DJELLOULI Nasser BELKBOUKHARI Safia TALEB Abdelkrim CHERITI https://dspace.univ-ouargla.dz/jspui/handle/123456789/6319 2019-05-08T08:06:46Z 2012-01-01T00:00:00Z

Titre: Lithiase urinaire du Sud Ouest Algérien : A propos de la composition des calculs en zone semi-aride Auteur(s): Khaled SEKKOUM; Hadja Mebarka DJELLOULI; Nasser BELKBOUKHARI; Safia TALEB; Abdelkrim CHERITI Résumé: The aim of this study is to contribute to the study of urinary stones disease in Algeria by determination of the chemical composition of urinary stones collected from the Algerian western south area (semi-arid area). Epidemiological investigation hospitals of this region have been done. A morph-constitutional analysis by FTIR of urinary stones collected from patients of this region was conducted. Epidemiological investigation results showed a large predominance in male gender with a ratio M/F = 1,43, the high urinary tract calculi constitute 91,57% of all calculus. Morphological analysis shown that hyperoxaluria is the main cause of nucleation. FTIR analyses indicate that calcium oxalate is the main constituent of urinary stones of this region with 58, 06 %. The comparison of our series with other series analyzed in industrialized and developing countries make it in the intermediate situation. Description: AST Annales des Sciences et Technologie

2012-01-01T00:00:00Z Omar GUEZOUL Mohamed Didi OULD EL HADJ Salaheddine DOUMANDJI Makhlouf SEKOUR Karim SOUTTOU https://dspace.univ-ouargla.dz/jspui/handle/123456789/6321 2019-05-08T08:06:29Z 2012-01-01T00:00:00Z

Titre: Les insectes dans le menu trophique des jeunes du moineau hybride (Passer domesticus x P. hispaniolensis) dans une palmeraie à Filiach (Biskra, Sahara septentrional Est algérien); (Passer domesticus x P. hispaniolensis) Auteur(s): Omar GUEZOUL; Mohamed Didi OULD EL HADJ; Salaheddine DOUMANDJI; Makhlouf SEKOUR; Karim SOUTTOU Résumé: The study of the fledglings diet of the hybrid Sparrow (Passer domesticus x P. hispaniolensis) carried out for the first time in the oasis of Biskra (34° 55` N., 5° 45` E.). The analysis of the stomacaux contents made it possible to identify 872 preys consisted a significant fraction of insects in the fledglings hybrid sparrows belonging to four category of ages (96.7% for the fledglings old hybrid sparrows of first to 3rd day, 95.8 % of 4 to 6 day, 96.7% of 7 to 9 day and 97.4 % of 10 to 12 day). The trophic menu of the fledglings hybrid sparrows is characterized by the predominance of the caterpillars of Lepidoptera preys in particular at fledglings of first category of ages (68.4% of 1 to 3 day and 29.7% of 4th to the 6th day). The unspecified species Lepidoptera sp.1 participle with 44.6% of the first category and 16% of the second category. On the other hand the Coleoptera strongly take part in the food of the 7 to 9 days with 24.8% and 41.6% with for the fledglings of 10 to 12 day. The other orders are slightly represented like Hymenoptera with 14.2% in the fledglings people of 4 to 6 day. They are followed by Orthoptera (10.4%) by the last two class of ages. Isoptera with 10% are consumed by the fledglings of 7 to 9 day. Thus with a rate of 10%, the Diptera of which Cyclorrhapha sp. indeterminated (8.8%) are introduced best by the fledglings hybrid sparrows of 4 to 6 day. Description: AST Annales des Sciences et Technologie

2012-01-01T00:00:00Z