ResumeCette étude est une première exploration régionale visant la recherche des plantes endémiques de la région d›Oran en vue d›une éventuelle évaluation de leur état de conservation. Les recherches se sont basées essentiellement sur les 124 relevés phytoecologiques réalisés à travers les secteurs O1 et O2 ainsi que certains sorties ciblant les stations de présence des espèces endémiques signalées pour la région d›Oran dans la littérature. Ces recherches de terrain ont conduit à l›identification de 17 taxons endémiques dont certains sont très rares comme Brassic aspinescens et Helianthemum maritimum. D’autres espèces ayant été ciblées par les recherches n’ont pas été retrouvées ce qui renforce l’hypothèse de disparition de certaines d’entre elles. En plus de cette première liste des endémiques réellement observés dans la région depuis l’indépendance du pays, les données sur leurs aspects chorologiques, écologiques et biogéographiques sont exposées et discutés. Mots clés: Endémique, flore, chorologie, conservation, inventaire, Oran, rare. AbstractThis study is a first regional exploration for plants research of the Oran region for a possible evaluation for their conditions of conservation. The research were basically based on 124 phytoecological records carried out across the sectors O1 and O2 as well as some data targeting endemic species presence stations reported for the region of Oran in the literature. This field searches led to the identification of 17 endemic taxa some of which are very rare like Brassica spinescens and Helianthemum maritimum. Other targeted species were not found, which reinforces the hypothesis of the disappearance of some of them. In addition to this first list of endemics actually observed in the region since the independence of the country, the data on their chorological, ecological and phytobiogeographical aspects are exposed and discussed. Key words: Endemics, flora, chorology, conservation, inventory, Oran, rare.

In light of the scarcity of both published and free Acoustic Arabic databases, we propose in this paper Acoustic Arabic database to be a reference in the field of automatic Arabic speech recognition , this database is the result of a case study that has been developed to contribute to the automatic diagnosis of speech disorders in Arabic speaking children, the field work was in collaboration with experts in communication and relying on some multinational Arabic schools to record samples of various Arabic speech dialects in normal circumstances. The letter "R" has been selected as the most common letters that children suffer from. In this paper we will explain the mechanism of the development and design of this database, which is divided into three sub databases: the first is for diagnosis of the disorder in a letter "R" when its position is in the beginning of the word and the second when it is in the middle of the word the last one when it is at end of the word, each sub database contains speech recordings for 60 children; 30 males and 30 females, each child repeats the voice disorder five times. We hope that this acoustic database will be considered challenge for working more and to be a reference for future researches as the identification of Arabic speech in general and especially for the automatic diagnosis and treatment of speech disorders for children.