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Centella asiatica is a medicinal plant. It is severely affected by leaf spot disease caused by a harmful, antibiotic resistant phyto pathogen Xanthomonas campestris pv. centellae (X. c. pv. c). Farmers used synthetic pesticides to control the disease. When pesticides are applied to control this pathogen, pesticides may cause environmental hazards and health(More)
The objective of our work is to provide some aid to the maintenance of a web site. The webmaster would like to get a semantic follow-up of the users' browsing, but he only has at disposal a set of statistical tools that indicate the frequency of one page visits but on no account by semantic aggregation of concepts. In this article, after having presented(More)
This paper aims to help a teacher to improve its course by using semantic information.For it, we supply to the teacher a means to evaluate his on-line course with regard to the student browsing..So, we can reveal various types of problems and propose a referential or a conceptual revision of the course.The learning phases, and so knowledge acquired with by(More)
The leaves, stem, flowers and fruits of Azadiracta indica .A Juss. which have some medicinal applications were investigated. Phytochemical analysis gave positive results for steroids, triterpinoids, reducing sugars, sugars, alkaloids, phenolic compounds, flavonoids and tannins. The crude methanol extracts showed growth inhibitory effects on Xanthomonas(More)
The leaves, stem, flowers and fruits of Datura metel Linn. which have some medicinal applications were investigated. Phytochemical analysis gave positive results for steroids, triterpinoids, reducing sugars, sugars, alkaloids, phenolic compounds, flavonoids and tannins. The crude methanol extracts showed growth inhibitory effects on Xanthomonas campestris.(More)