Etude des phytostérols et des acides gras de pistachia atlantica

Le genre Pistacia est représenté en Algérie par quatre espèces, en l’occurrence Pistacia lentiscus, Pistacia terebinthus, Pistacia vera et Pistacia atlantica. Le pistachier vrai (Pistacia vera) et le pistachier de l’atlas ou bétoum (Pistacia atlantica) sont caractérisés du point de vue écologique par une grande tolérance aux variations climatiques, ils peuvent croître sous des tranches pluviométriques assez faibles et s’accommodent de tous les sols. On extrait de leurs graines une excellente huile alimentaire. Si pour le pistachier vrai, les caractéristiques physiques et biochimiques sont connues, ce n’est pas le cas pour le pistachier de l’atlas. En effet les résultats d’analyses montrent que les graines de bétoum sont très riches en lipides avec une grande teneur en acides gras mono-insaturés et en phytostérols, teneurs comparables à celle de l’huile d’olive, qu’on commence à peine à entrevoir ses vertus thérapeutiques et nutritionnelles envers certaines pathologies

Dual iris authentication system using dezert smarandache theory

In this paper, a dual iris authentication using Dezert Smarandache theory is presented. The proposed method consists of three main steps: In the first one, the iris images are segmented in order to extract only half iris disc that contains relevant information and is less affected by noise. For that, a Hough transform is used. The segmented images are normalized by Daugman rubber sheet model. In the second step, the normalized images are analyzed by a bench of two 1D Log-Gabor filters to extract the texture characteristics. The encoding is realized with a phase of quantization developed by J. Daugman to generate the binary iris template. For the authentication and the similarity measurement between both binary irises templates, the hamming distances are used with a previously calculated threshold. The score fusion is applied using DSmC combination rule. The proposed method has been tested on a subset of iris database CASIA-IrisV3-Interval. The obtained results give a satisfactory performance with accuracy of 99.96%, FAR of 0%, FRR of 3.89%, EER of 2% and processing time for one iris image of 12.36 s

EVALUATION DE LA PREMIERE EXPERIENCE DE GESTION DELEGUEE DES DECHETS MENAGERS A CASABLANCA, MAROC

Urban expansion, population growth and modes of consumption are all factors that have caused a significant increase in waste production in Casablanca. Privatized in 2004, the solid waste management in this city is confronted with institutional, technical and legal problems. The analysis of documents - the Law 28-00 on solid waste, the Convention of delegated management and the National Program of Household Wastes (NPHW) - allows assessing the institutional, political and technical difficulties of the reform of the solid waste management. It shows, in particular, that the legal provisions and governmental strategies are difficult to be applied. In addition, The investigations carried out in the popular quarters of Ben M’Sik shows that wastemanagement solids is perceived like a shared responsibility

CONTRIBUTION À L’ÉTUDE DU MAGMATISME BASIQUE ASSOCIÉ AU VISÉEN SUPÉRIEUR DU BASSIN HERCYNIEN DE MECHRAA BEN ABBOU (REHAMNA-MAROC)

The synclinal of Gada Jennabia is located in Mechraa Ben Abbou basin (Rehamna-Morocco). An intense upper Visean basic magmatic activity recorded in the basin by sills of gabbros, dolerites and basalts. The lithological study, through four geological cross sections shows a diversification facies, represented by deterial, carbonate and pelagic sediments. Petrographical observations of these magmatic rocks indicate fairly constant mineralogical composition (plagioclase and strongly altered ferromagnesian minerals such as clinopyroxène). Observed textures are equigranular for the gabbros, intersertale ophitic and subophitic for the dolerite and microlithic porphyritic vacuolar for the basaltes. A pronounced hydrothermal alteration of some facies is attested by the presence of calcite, chlorite, séricite and iron oxides. These magmatic events were comparable in four outcrops. They are interbedded in the sedimentary and metamorphic series and are mineralogically the equivalent of magmatic rocks identified in central Morocco and the Jebilets massive

LE BASSIN DÉVONO-DINANTIEN DE MECHRAA BEN ABBOU: BASSIN PULL APART SUR DÉCROCHEMENT DEXTRE (REHAMNA SEPTENTRIONAUX, MAROC)

The structuring of the Mechra Ben Abbou region during the Hercynian orogeny is intimately linked to the history of the Devonian- Dinantian basin. The basin sedimentation has been guided by the main fault movements limiting the Gada Jennabia unit; The Foum El Mejez fault in the East and the Leffaid faultin the West. In fact, the Foum El Mejez fault is a dextral strike-slip who undergoes virgation to open a pull apart basin in the Upper Visean. During different phaseshercynian, the visean basin is experiencing a complex tectonic combining fold and fault movements with the establishment of basic igneous rocks. In the present work, we study the various structures found in the region to reconstruct the history of the Mechraa Ben Abboubasin and propose a consistent conceptualmodel

legal approach to protecting vulnerable minority groups

جاءت هذه الدراسة محاولة التأطير القانوني لحماية الفئات المستضعفة من الأقليات الذي يبقى مطروحا في ظل تنامي العنف ضد هذه الفئات فعلى الرغم من أن مسألة الأقليات قديمة قدم الإنسانية، مرتبطة بالتنوع الطبيعي والاختلافات بين البشر، وبالرغم من أن ظهورها كمشكلة تحتاج لضبط وحماية قانونية لم يكن وليد التطورات الحديثة، إلا أنها لا تزال في حاجة للحماية خاصة فئة الأطفال والنساء.This study was an attempt to develop a legal framework for the protection of vulnerable groups of minorities due to theongoing violence against these groups. Although the issue of minorities is an old one linked to natural diversity and human differences, and although their emergence as a legal problem is long-standing, they still need protection, especially for children and women