Yasser El Madani El Alami

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Root-adhering soil (RAS) forms the immediate environment where plants take up water and nutrients for their growth. We report the effect of an exopolysaccharide (EPS)-producing rhizobacterium (strain YAS34) on the physical properties of sunflower (Helianthus annuus L.) RAS, associated with plant growth promotion, under both water stress and normal water(More)
Rhizobacteria closely related to two recently described species of pseudomonads, Pseudomonas brassicacearum and Pseudomonas thivervalensis, were isolated from two geographically distinct wheat field soils in South Australia. Isolation was undertaken by either selective plating or immunotrapping utilizing a polyclonal antibody raised against P.(More)
Bacteria are known to rapidly produce new phenotypes, but it is unclear how phenotype "plasticity" relates to studies on the population ecology of bacteria in complex environments. We characterised a collection of 14 spontaneous phenotype variants, derived from in vitro and in vivo cultures (wheat roots) of Pseudomonas corrugata 2140, using fatty acid(More)
This paper presents an integrated multi-agents architecture for indexing and retrieving video information. The focus of our work is to elaborate an extensible approach that gathers –a priorialmost of the mandatory tools which palliate to the major intertwining problems raised in the whole process of the video lifecycle (classification, indexing and(More)
“Collaborative filtering” is the most used approach in recommendation systems since it provides good predictions. However, it still suffers from many drawbacks such as sparsity and scalability problems especially for huge datasets which consist of a large number of users and items. This paper presents a new algorithm for neighborhood selection based on two(More)
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