عماد الدين عبد الحق معطالله, مسعود بوخالفي

كلية العلوم الاقتصادية والتجارية وعلوم التسيير-جامعة غرداية · الجزائر

تهدف هذه الدراسة الى التعرف على أثرت بنيا استراتيجية البحث والتطوير على ربحية المؤسسة الاقتصادية ، .وللأجل الوصول للأهداف هذا البحث ارتأينا تناول موضوع مذكرتنا في محورين، الجانب النظري تطرقنا من خلاله بتعريف عام للبحث والتطوير ثم تطرقنا بعده الى الاطار المفاهيمي العام للربحية . اما الجانب التطبيقي خصصناه لبحث اثر انتهاج استراتيجيات البحث و التطوير و أثرها على الربحية و ذلك من خلال استغلال الوسائط المتجسدة و اثرها على الربحية المؤسسة ، ودالك من خلال دراسة حالة لمؤسسة الكهرباء و الطاقات المتجددة SKTM الكائن مقرها ببلدية بنورة ولاية غرداية .وكنا قد طرحنا ثلاث فرضيات كأرضية للوصول الى النتائج المبحوث عنها، وبعد معالجة المعطيات المتحصل عليها خلصنا الى نتائج مفادها :قبول فرضيات الدراسة والتي تنص في مجملها على ان بعض المؤسسات الاقتصادية في الجزائر تنتهج استراتيجيات في البحث والتطوير لزيادة ربحيتها، وذلك من خلال ما توصلنا اليه من نتائج لتحليل بيانات الخاصة بالعائدات والمحطات القديمة والجديدة للشركة محل الدراسة من جانب الربحية والحصة السوقية وحجم المبيعات

Mazen Saadoun Shall, Toufic Mezher

كلية مارون سمعان للهندسة والعمارة-الجامعة الأمريكية في بيروت · لبنان

Tayeb Zaoui, Habib Belarbi, Mansour Debdab

كلية علوم المادة-جامعة ابن خلدون – تيارت · الجزائر

L’objectif de nos travaux de recherche est de réaliser une étude descriptive et analytique des biocapteurs à base de liquides ioniques. Nous cherchons également à fournir un modèle audacieux d’analyse des données sur le sujet, en plus de mettre en oeuvre des travaux originaux, à savoir la conception d’un nouveau liquide ionique, que nous considérons comme intéressant pour l’avenir en termes d’application. Les liquides ioniques utilisés en synthèse sont les matrices de type imidazolium portant une chaine alkyle fonctionnalisée. Le liquide ionique produit a été décrit indépendamment ; où il est caractérisé par spectroscopie RMN1H, RMN13C. L’analyse par thermogravimétrie a été couplée à ces techniques afin d’étudier les propriétés thermiques, étendant ainsi le processus de caractérisation de ce IL obtenu.

Djawhara Belbey, Sami Berbache , Soria Maache

كلية الاداب واللغات-جامعة محمد بوضياف - المسيلة · الجزائر

IIFor the Memory of our ColleagueOur Condolecence for the memory of our colleague Mr. Snouci Yusuf “may Allah bless him with His mercy”We know that there is nothing to say that will make our loss easier, but we know that the mark he left was so great and because of this he is never really be gone and he is in our thoughts and prayers all the time. “Inna lilahi wa Inna ilayhi rajioon” “Surely we belong to Allah and to Him shall we return.” May Allah grant him jannat-ul-fidos and his family patience.IIIAbstractWhen pre-intermediate students are asked to read a text in EFL classroom, they are unable to read fluently because most of their attention is directed towards decoding individual words, without having a purpose for reading. In this respect, the present study aims at investigating the effects of raising third year middle school students‟ metacognitive awareness of reading fluency and comprehension. The study is based on an experimental research design wherein 98 students were conveniently selected to partake in a seven weeks training program and treatment. Tow pre-course questionnaires were administered to students to gather information about their metacognitive awareness of the reading process and their use of reading strategies. Then these learners were tested before the training sessions took place in order to check firstly the homogeneity of the groups in terms of reading fluency and secondly to assess their comprehension ability, and therefore to diagnose their needs for the training phase. For five weeks duration, the training sessions focused on raising students‟ metacognitive awareness of the reading comprehension process using strategy instructional framework. The study ended with two posttests and two other post-study questionnaires. The analysis of the data collected on reading comprehension and reading fluency demonstrated that the learners‟ assigned to the experimental groups have significantly (p<0.05) improved their reading fluency and comprehension test scores as compared to the control group. Similarly, the results of the questionnaires‟ analysis indicated that students who took the treatment improved their metacognitive awareness on the most effective ways to use the trained reading strategies. The findings of the present study therefore suggest that EFL teachers and textbook designers ought to incorporate activities that explicitly foster why, when, and how to use metacognitive reading strategies and how to improve their reading pace.

سميرة هامل, نور الدين جبالي

كلية العلوم الإنسانية والاجتماعية-جامعة باتنة 1 - الحاج لخضر · الجزائر

يوسف بوزيد, مريم بوقروة

كلية العلوم الاقتصادية والتجارية وعلوم التسيير-جامعة عبد الحميد بن باديس مستغانم · الجزائر

Mounira Berrehail, Somia Benzertiha

كلية العلوم والتكنولوجيا-جامعة محمد البشير الإبراهيمي - برج بوعريريج · الجزائر

Dans ce travail, nous avons présenté l’équation de Schrödinger, qui joue un rôle fondamental en mécanique quantique car elle contrôle l’évolution temporelle du système physique. Pour résoudre cette équation dépendante du temps, il existe plusieurs méthodes, parmi lesquelles la méthode des invariant de Lewis Riesenfeld. Par l’application de la théorie des invariants, Nous avons obtenir la solution exacte pour un oscillateur harmonique unidimensionnel dépendante du temps ou on a pu trouver les valeurs propre de l’invariant et la phase.

Ahnoudj Rima , Oukaci Kamal

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

Ce travail étudie l’impact de l’intégration financière sur la croissance économique au Maghreb(Algérie, Maroc, Tunisie). Plusieurs auteures préconisent la libéralisation du compte capital à cause deseffets positifs qu’elle induit à travers l’accroissement de l’épargne, la diversification du risque, etl’augmentation de l’investissement. Néanmoins, cette politique peut aussi provoquer des effets néfastespour l’économie (l’effet d’évection, l’instabilité financière et la propagation de crises).Apres avoir effectué un programme de réformes et adopter la politique de la libéralisationfinancière, les trois pays du Maghreb ont connu une stabilité macroéconomique et une amélioration deleurs systèmes financiers. Quant à l’ouverture de leur compte capital, les investissements directs étrangersont été les plus sollicités et ne font l’objet d’aucune restriction, par contre les investissements deportefeuille à l’entrée ont été partiellement libéralisés. Enfin la synthèse des études empiriques, nous amontré que l’impact de la libéralisation financière sur la croissance économique est significatif pour laTunisie mais pas pour l’Algérie et le Maroc.

Djerou Dounia, Sabrina Bait

كلية الاداب واللغات-جامعة محمد خيضر - بسكرة · الجزائر

أحمد الطيب عبدالله محمد, توسل أحمد كاشف عبدالكريم, رشا حسن عبدالله

كلية العلوم الزراعية-جامعة الجزيرة · السودان

Sudan’s industrial sector was historically limited to utilities and small-scale food processing, but, lately, the majority of these industrial projects in the Sudan have a significant economic and environmental impacts. The aim of this study was to assess the environmental impact of Al-Guneid Sugar Scheme which has been in continuous operation for a period of over fifty years in Butana Locality, Gezira State, Sudan. The data were gathered from the Factory records, previous studies, interviewing influential personalities in the local community and field visits. Two questionnaires were filled by two groups; farmers in the area of study and non-farmers existing in the same area. Data were analyzed using the SPSS program. Results showed that 64% of the farmers believed that the factory was valuable and 87% of them thought that it was feasible. Services were appreciated by 92% of non farmers, while only 64% of the farmers depended on them. On the other hand, 56% and 67% of farmers thought that the factory caused soil and water pollution, respectively. The existence of Al-guneid Sugar Scheme has brought positive changes in economic conditions by raising the standard of living, social status, education, health, and changed the area’s demography. On the other hand, it has also brought negative environmental changes, such as air and water pollution. It is recommended to adopt green harvesting of sugar cane and increase the height of chimneys to reduce the smog. Also, to find out safe ways of liquid waste disposal instead of spilling the waste into the Blue Nile. The Factory administration has to establish a department to be concerned with minimizing the negative impacts of the factory on the environment and compensate those affected by pollution. The administration of the factory should comply with the regulations and standards of sustainable development.