Cylia Ouhenia, Feriel Lahlou, Sofiane Mammeri

كلية الآداب واللغات-جامعة عبد الرحمان ميرة - بجاية · الجزائر

In ten fall of 2016, thedebate took place between Hillary Clinton and Donald Trump seeking to gain the american's voices for the presidential election. The present study pictures their discourse ideologies enclosed in their second debate through the use of Van Dijk's model (2006). The objective of the present study is to find out the enclosed ideologies embedded in their discourse....

chaulet claudine, KACED Sacia

كلية الاداب واللغات-جامعة مولود معمري - تيزي وزو · الجزائر

Samia Ayadi, Benachour . K, Sara Kernou

كلية العلوم الطبيعية والحياتية-جامعة عبد الرحمان ميرة - بجاية · الجزائر

L’étude réalisée à conduit à la revivification de dix sept souches de bactéries lactiquesqui sont déjà isolées à partir de beurre et de lben de la région de Bejaia. La majorité sont desbacilles appartenant au genre Lactobacillus (76,47%), et il ya aussi des coques appartenant auLeuconostoc (23,53%).Les résultats de l’évaluation des aptitudes technologiques indiquent que l’ensembledes souches présentent un pouvoir acidifiant remarquable, 58,8% de ces souches présententune bonne acidification et seulement 17,64% qui présentent une faible acidification.La détermination de l’activité protéolytique montre que 64,71% des souches ont unebonne activité.Ces souches révèlent de bonne propriétés fonctionnelles (texturante, aromatisante,coagulante et épaississante) qui peuvent être exploitées dans l’industrie laitière.

Ahmed Hafez, Carlos Santamarina

جامعة الملك عبدالله للعلوم والتقنية · السعودية

Colloids and suspensions are frequently encountered in energy geo-engineering applications, from natural processes such as fine particles suspended in subsurface water and oil, to engineered fluids such as drilling muds and proppants. Transported particles can clog porous media and alter the medium permeability and flow paths. This research explores particle laden fluids using pore- and fracture-scale experimental, analytical and numerical techniques.Particle shape emerges as an important dimension in bridge formation at the pore-scale. Experiments show that cubical particles and 3D crosses are the most prone to clogging because of their ability to interlock and to develop torque-resisting contacts. Simulation results reveal the complex arch geometries and associated force chains formed by different particle shapes.A large-scale parallel-plate configuration mimics particle-laden radial fluid flow at the fracture-scale. Experimental and numerical simulation results show the development of a negative pressure annular zone away from the central injection point as a result of fluid inertial effects at high Reynolds numbers. Gravity and inertial retardation cause particles to deviate from the fluid streamlines, which changes the local particle concentration and enhances clogging.Conventional treatments prevent fluid leakage into the subsurface for small-aperture fractures, but are inefficient for large openings. Magnetically-controlled aggregation emerges as a viable clogging alternative. Tests with a newly designed magnetorheological mud show that the suspended iron particles accumulate around magnetic poles and gradually form a plug that stops fluid flow (flow resumes once the magnetic field is removed). The complementary study investigates the granular self-assembly of engineered magnetic particles to form large architectures in a bubble-column reactor; results show the stochastic nature of collision-limited aggregation and the role of boundaries in constraining potential configurations.Bentonite-cement-oil mixtures exhibit surprisingly fast hydration and may be used for fluid loss control into large-aperture fractures. Linear and radial flow experiments reveal the complex interactions between concurrent processes: spontaneous imbibition, the release of hydrated ions during cement hydration, bentonite flocculation, and enhanced permeability. Complementary oedometer and cone penetration tests show the evolving swelling pressure and plug strength.

فائقة عباس سنبل, مها عباس الربيعاني

كلية التربية-جامعة أم القرى · السعودية

A. Mouloua, N. Seklaoui, Sarah Ouabdesselam, Thanina Lounis

كلية العلوم البيولوجية والزراعية-جامعة مولود معمري - تيزي وزو · الجزائر

Khadidja Seghier, Youcef Benamor

كلية اللغات والاداب-جامعة ابن خلدون – تيارت · الجزائر

The aim of this research work is to investigate whether teachers adopt contextual methods to teach grammar or they teach grammar using traditional methods in the Algerian context. The problematic at hand seeks to find out teachers’ own concepts concerning grammar teaching,to discover to what extent they employ their practical theories in the classroom and finally to get informed about the factors which influence the mismatch between their cognitive beliefs and classroom actions during their instructional process. To fulfill the requirements of our investigation the researcher employed quantitative and qualitative approach. Therefore, both online self- administered questionnaire and focus- group interview were used to collect data from different EFL teachers in Algeria. We targeted EFL teachers to fill in online questionnaire via Google forms. The questionnaire was supposed to be filled by 50 teachers of different secondary schools in Algeria. Besides, thematic analysis and tables were used to interpret and analyze the data gathered from the participants. The results showed that teachers are aware of that teaching grammar best occurs in context through authentic materials though there were factors including time restrictions, unavailability of materials and curriculum demands that prevented them from teaching communicatively.

أمل رشيد عمر , سهيل حسين صالحة

كلية الدراسات العليا-جامعة النجاح الوطنية · فلسطين

This study aimed to identify the effect of using an instructional program based on mathematical power on achievement and mathematical thinking. The study basically tried to answer the question: What is the effect of using an instructional program based on mathematical power on achievement and mathematical thinking among 7th grade students in Nablus governorate?The study sample consisted of (60) female students from the 7th Grade of Elementary Rafidia School for Girls in Nablus, were divided randomly into two groups, the experimental group and the compared group. The experimental group had studied by using the instructional program based on mathematical power. While the compared group had studied the same unit by using the traditional approach of teaching in the first semester 2014/2015. The study tool consisted of two tests, achievement test in mathematics, and a test the mathematical thinking. The researcher had been achieved the sincerity and reliability of the two tests. The researcher used the accompanying analysis of variance (ANCOVA) to check the hypotheses of the study, and also calculate the Pearson correlation coefficient between the experimental group marks in the post test to find out the relationship between mathematical thinking and student achievement.Findings indicate the existence of a significant statistical difference at the significance level (α ≥ 0.05) between the arithmetic means marks of the two groups of students on the achievement tests and mathematical thinking, and this difference is due to instructional program based on mathematical power on achievement and mathematical thinking, and in favor of the experimental group students. The results also showed a positive relationship between mathematical thinking and achievement.The study recommended the need for the training of mathematics teachers on education according to mathematical power as a way of teaching, and the reformulation of educational materials for the basic stage in line with the dimensions of mathematical power, and the ability to develop mathematical thinking among students because of its prominent role in addressing the weakness of achievement in mathematics.

Ania Dahlab, Sai Zhor

كلية العلوم الاقتصادية والتجارية وعلوم التسيير-جامعة مولود معمري - تيزي وزو · الجزائر

Sous l’impulsion de la technologie,de la mondialisation et de la responsabilité sociale, de nouveaux comportements sont apparus sur le marché tel que le marketing relationnel qui représente une nouvelle tendance et une stratégie pour toute entreprise, en particulier celles prestataires de services qui souhaitent maintenir leurs relations avec l’ensemble de leurs clients et aussi renforcer la pérennité de l’entreprise.La gestion de la relation client (GRC),appelé également Customer Relationship management (CRM) est considéré comme un ensemble d’outils et de techniques marketing et commerciales et constitue sa mise en œuvre pour l’entreprise afin d’atteindre plusieurs objectifs qui consistent a mieux capter et analyser les données des clients ou prospects pour créer une relation de proximité et mieux les satisfaire ainsi que les fidéliser.Dans ce mémoire,après notre étude au sein de l’agence AT, on a pu constater l’importance accordée au marketing relationnel par cette dernière et cela en réalisant plusieurs actions et moyens dans le but de satisfaire sa clientèle, et à travers l’élaboration d’un questionnaire au profil des clients d’AT. On a pu aussi répondre à la problématique évoquée dans notre thème « l’impact du marketing relationnel sur la fidélisation et la satisfaction de la clientèle »,on a déduit que effectivement que le marketing relationnel est nécessaire au sein d’AT afin d’atteindre sa préoccupation majeure qui est la satisfaction et la fidélisation de sa clientèle.

Abdelkrim Benaicha, Fatiha Hamada, Rachida Seba

كلية العلوم الاقتصادية والتجارية والإدارة-جامعة عبد الرحمان ميرة - بجاية · الجزائر

Dans cette étude, l'objectif principal est de comprendre comment la communication marketing de contenu du service numérique influence la mobilisation de la marque des entreprises via les réseaux sociaux par des agences publicitaires, en prenant pour cas pratique l'agence marketing " Techsys Media ". Pour répondre à la question principale de cette recherche, une étude qualitative a été menée à travers des entretiens avec (06) six enquêtés qui sont des employés au niveau de l'agence marketing " Techsys Media ". Les résultats obtenus confirment que l'agence marketing " Techsys Media " met en place d'une stratégie de communication marketing ciblée pour mobiliser l'image de marque des annonceurs. L'accent est mis sur la création de contenus variés et adaptés aux spécificités de Facebook, ainsi qu'à la cible, afin de maximiser la notoriété puis créer de l'intérêt à travers des techniques persuasives, pour ensuite convertir en client, permettant de construire une image de marque voulue