GUETTAFI Sihem , Ouamane Nafissa

كلية الاداب واللغات-جامعة محمد خيضر - بسكرة · الجزائر

بدر الدين عبدالله إبراهيم يحيى, مختار طه أبو سمرا

كلية الدراسات العليا-جامعة السودان للعلوم والتكنولوجيا · السودان

Across-sectional sero-epidemiological study was conducted during the period 25thJanuary to 10th –May /2015, with aim of determining the prevalence of camel brucellosis and to investigate the potential risk factors associated with the disease in the Butana plain area and Al-Gadareif State, Sudan.A total of 320 camels in 12 herds were included in this study and blood samples (320 samples) were collected randomly from selected camels from 12 areas in 6 different locations in the two areas of this study.In this study, (289/320) 90.3% and (31/320) 9.7% were females and male camels, respectively. Serum samples were tested by Rose Bengal Plate test, and confirmed by Standard Agglutination Test (SAT).Among all serum samples screened by (RBPT), (23/320) 7.2% were sero-positive, and only (4 /23) 1.2% were confirmed positive by the SAT test. The study showed that only two herds among the 12 herds included in the study were sero-positive. The results of the study showed that the prevalence of camel brucellosis in the two areas of the study was 7.2% (23/320), and the prevalence according to the location of study was; western Butana 18.7% (23/123), northern Butana, southern Butana, eastern Butana, central Butana, and Al-Gadarief State were (0%). The prevalence of the disease was higher in Butana 7.2%, than Al-Gadarief State (0%) with significant statistical difference (p-value ≤ 0.25). Sero-prevalence of brucellosis in female camels was 7.6% relatively higher than that of male camels which was 3.2%.In univariate analysis by using chi-squire to analyze the risk factors involved in the susceptibility of brucellosis had a significant associationXIwith the occurrence of the disease. Thirteen risk factors had significant association with the occurrence of brucellosis, while five risk factors had no significant association with brucellosis in camels (p-value ≤ 0.25).The multivariate analysis by logistic regression to determine the strength of significance of risk factors associated with the occurrence of brucellosis showed that only two risk factors are strongly associated with brucellosis in camels (p-value ≤ 0.05).The results obtained in the current study of the present study revealed the status of sero-positivity prevalence of brucellosis in camels (Camelus Dromedarius) and the potential contribution of risk factors which contribute in the occurrence of the disease, and indicated the distribution of the disease between camel herds in Al-Gadarief State and Butana plain area. Moreover, the study indicated that brucellosis is one of the major problems affecting the health and production of camel breeds.

Rachida Simon , Tarek Khireddine

كلية الآداب واللغات الأجنبية-جامعة باتنة 2 - الشهيد مصطفى بن بولعيد · الجزائر

Partant de l’idée qu’entre la littérature et la philosophiel’échange est primordial et d’une grande richesse, que l’étude detoute forme d’expression artistique n’est rien loin de son contextephilosophique. Alors que la littérature est une forme d’art. Notrelecture est une tentative pour détecter les traces du Yin-Yang (unconcept fondateur dans la pensée chinoise) dans la littérature quel’oeuvre de La Condition humaine d’André MALRAUXreprésente dans notre recherche. Un monde d’échange etd’influence, plein de complémentarité qu’en a essayé d’approcherà travers une analyse sémantico- sémiotique, une étudesyntaxique et conceptuel selon une lecture binaire, un thèmefascinant, étrange, harmonieux et beau.

Alawia Adam Ali Sulieman , Abdelsafi Abbas Gabbad

كلية الصحة العامة وصحة البيئة-جامعة الخرطوم · السودان

The term 'malnutrition' usually means the inappropriate intake of one ormore of the nutrients essential for normal growth and development of the body.Malnutrition is a major health problem, especially in developing countries, amongchildren. For example, in the Sudan, about 31% of the children under five years ofage, were found to be moderately underweight, while 9.4% were severelyunderweight. This was mainly attributed to poverty and lower socio-economicstatus, which are some of the global causes of child mortality, and a major concernin developing countries like Sudan.

سمير الخضور, محمد ناصر العباس

كلية الهندسة الميكانيكية والكهربائية-جامعة حمص · سوريا

Mohamad Samir Chams, Leila Dagher

كلية العلوم والأداب-الجامعة الأمريكية في بيروت · لبنان

What is the optimal payout strategy? A question that has been titillating three groups of agents in modern corporate finance for more than half a century: Managers who intend to maximize the value of their firm, investors who want to take accurate and informed decisions concerning their investment choices and theorists who hope to grasp the essence of market forces, their causes and their consequences. What is the optimal payout strategy? Each previously mentioned group, and every subgroup has a different answer. The issue is far from being settled. From a theoretical perspective, the matter seems to be answered by the highly regarded theory of dividend irrelevance. However, this answer does not come without being contested, because no matter what is argued, cash is still king, as the “bird in the hand theory argues”. From a practical side, dividend distribution has been a long term practice in developed markets. The fact that it exists is, for some, enough evidence of its importance; markets know better. However, a lower propensity to pay has been evidenced in some markets, even though this weaker likelihood to distribute dividends appears to be relatively thin when factoring in the highly central idea of agency costs. With managers being free electrons, investors prefer to disgorge cash from their companies if no real growth opportunities arise. What is the optimal payout strategy? The reader will not find the answer in this paper. However, our intention is to shed some light to what has been done in the economic circle to explain the issue, and how good of a job have these explanations been doing for the past sixty years. In fact, both mainstream and heterodox theories of dividends have been limiting themselves to neoclassical economic concepts that have led them right where they started. Maybe it is time for a real independence of the field. Maybe it will help Financial Economists do a more effective job in explaining and forecasting changes in markets. A multidisciplinary approach might be mor

بكريتي بومدين, سارة مونة

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

Khamis Al-Mahallaw, Mazen Hamada, Najma Fares Jamee

عمادة الدراسات العليا والبحث العلمي‎-جامعة الازهر - غزة-جامعة الازهر - غزة · فلسطين

Bekhta Moulai, Sidi Mohamed Bahri

كلية العلوم الدقيقة والاعلام الآلي-جامعة عبد الحميد بن باديس مستغانم · الجزائر

احمد بوزيداني, سعيدة دردير, نصيرة شريف

كلية العلوم التطبيقية-جامعة ابن خلدون – تيارت · الجزائر

Avec l'évolution des technologies, l'utilisation de matériaux composites pour les lignes d'arbre devient un choix très fondamental pour les concepteurs de rotors des machines tournantes, en raison de leurs propriétés mécaniques améliorées.L'objet principal de cette recherche est d'étudier le comportement dynamique non linéaire d'une ligne d'arbre en composite contrôlée par un palier hydrostatique à jeu variable en régime permanent. Cette étude se base sur l'effet de la position du disque, du nombre de plis et de l'angle d'orientation des plis sur les amplitudes des vibrations du rotor et les forces transmises.Pour ce faire, la plate-forme de simulation utilisée est le logiciel MATLAB/Simulink, afin de modéliser et simuler la structure étudiée. Cela permet de trouver les représentations graphiques qui illustrent l'impact des différents paramètres