رفع كفاءة محطة توليد طاقة بخارية باستخدام تحليل الإكسيرجي

تناول هذا البحث تحليل الإكسيرجي لمجموعة توليد بخارية في محطة توليد بانياس الحرارية استطاعتها الإسمية 170MW, بهدف زيادة مردودها. وتمت مقارنة نتائج المردود الحراري مع المردود الإكسيرجي بهدف إظهار أن تحليل الإكسيرجي يمكن أن يؤدي إلى دراسة إمكانية تحسين أداء المحطة. قمنا بتحديد المصادر الرئيسية لضياع الطاقة وإفناء (ضياع) الإكسيرجي في المحطة. و هذه الطريقة تزودنا بالوسائل والطرق التي تؤدي إلى تطوير أداء النظام وتقليل تأثير الوسط المحيط. كما تم انجاز دراسة لبارامترات المحطة التي تظهر كيف يتغير أداء النظام بتأثير عوامل مختلفة. حيث وجد بأن حجرة الاحتراق هي المساهم الرئيسي لإفناء الاكسيرجي يليها مبادل الحرارة في نظام المرجل

Economie touristique et capital social : une étude de l'offre dans la région côtière syrienne

This thesis proposes a multidimensional analysis of the effect of social capital on the tourism sector dynamics at the territorial level. The objective of this work is to question the capacity of local actors to mobilize their stocks of social capital in a dynamic of development of the tourism offer based on local resources. For this we use the theoretical framework of social capital theory as well as the territorial economy, in order to illuminate new perspectives on the potential of tourism development based on local resources. This framework is applied to the understanding of the links between social capital and the tourist offer in a seaside resort of the Syrian coastal region. To enable us to see the role of social capital in the dynamics of the local tourism offer in the studied seaside resort, we proceed with the development of an indicator of '' the effect of social capital on the tourist offer ''. We also present a study of a network of actors from the resort engaged in the same activity. In this study we discern how norms and principles such as reciprocity or reputation affect the activity of actors.Different levels of conclusions can be drawn from our work: on the role of social capital in the transformation of the local economy; or on the importance of the family in financing tourism projects; or on the deficiency of institutional capital.Cette thèse propose une analyse multidimensionnelle de l'effet du capital social sur la dynamique de secteur touristique à l'échelle territoriale. L'objectif de ce travail est d'interroger la capacité des acteurs locaux à mobiliser leurs stocks de capital social dans une dynamique du développement de l'offre touristique basée sur les ressources territoriales. Pour cela nous utilisons le cadre théorique de la théorie du capital social ainsi que les acquis de l'économie territoriale, dans le but d'éclairer de nouvelles perspectives concernant le potentiel du développement touristique basé sur les ressources du territoire. Ce cadre est appliqué à la compréhension des liens entre le capital social et l'offre touristique destinée à accueillir les touristes locaux au sein d'une station balnéaire de la région côtière syrienne. Le secteur touristique syrien s'est beaucoup développé au cours des années 2000. Ainsi on a compté près de 10 millions de touristes en 2010. Mais depuis 2011, le tourisme international en Syrie est à l'arrêt, cependant cela n'empêche pas la poursuite de la réalisation des projets touristiques ayant commencé avant ou même pendant la crise. Ce paradoxe montre que le secteur touristique n'est pas absolument condamné à l'échec, au moins dans certaines régions du pays dont la région côtière. Les pertes que subit le secteur touristique syrien actuellement prouvent que compter de manière excessive sur le tourisme international est un pari difficile dans une région aussi troublée que le Moyen Orient. Alors les efforts et les stratégies du développement touristique devraient se tourner plus vers l'encouragement du tourisme local et des loisirs de proximité. Après une crise aussi terrible, il est normal que les ressources soient mobilisées dans les efforts de reconstruction et de restauration du fonctionnement des secteurs comme la santé ou l'éducation. La restauration de la vie économique dans des secteurs créateurs de richesse comme l'industrie et l'agriculture devrait avoir la priorité dans les choix d'utilisation du capital financier, d'où la nécessité pour le secteur touristique de chercher à révéler et à valoriser toutes les ressources possibles pour venir alimenter la dynamique du secteur touristique. Parmi les ressources potentielles, l'importance du capital social est à souligner. De nombreuses études ont révélé une implication multiforme du capital social dans la dynamique du secteur touristique. Le rôle du capital social est d'autant plus perceptible dans le contexte de petits projets touristiques tels que la restauration, la location et les divers services liés au tourisme. La théorie de l'économie territoriale nous fournit un cadre théorique important pour étudier le capital social comme ressource territoriale. Ce choix ne se justifie pas seulement par les portées scientifiques de l'économie territoriale, d'autres facteurs nous guident vers ce choix dont les caractéristiques du secteur touristique syrien ; et le besoin d'accompagner au niveau scientifique une volonté affichée du gouvernement à encourager un nouveau mode de développement et de planification plus local que central. Pour nous permettre d'apercevoir le rôle du capital social dans la dynamique de l'offre touristique locale dans la station étudiée, nous procédons à l'élaboration d'un indicateur de ‘‘l'effet du capital social sur l'offre touristique''. Nous présentons également l'étude d'un réseau formé des acteurs de la station pratiquant la même activité. Dans l'étude du fonctionnement de ce réseau nous discernons la manière dont des normes et principes comme la réciprocité ou la réputation affectent l'activité des acteurs dans la station. Différents niveaux de conclusions peuvent être tirés de notre travail : sur le rôle du capital social dans la transformation du tissu économique territorial ; ou sur l'importance de la famille dans le financement des projets touristiques ; ou encore sur la déficience du capital social institutionnel

The relationship between the strength of pain and the oral expressions among a sample of nerves patients in Lattakia.

 This study aimed to investigating the relationship between the strength of pain and expressions of pain among a sample of patients with inflammation of the nerves in Lattakia, and to find out the relationship between the strength of pain and sensory expressions of pain, and to find out the relationship between the strength of pain and Emotional expressions of pain. Participants were (40) patient from inflammation of the nerves, The measures of pain were EVA to strength of pain and Saint –Antoine scale to assess pain, and anxiety test as (state and trait), The results showed that there is correlation between the strength of pain and expressions of pain among the members of the sample as a whole, and there are correlation between the strength ofpain and sensory and emotional expressions of pain

The Relation Between Burnout ,Optimism and Support From Management of some Faculties in A sample of Teachers at Tishreen University

 The aim of this study was to investigate the relation between Burnout, Optimism and Support from Management in some Applied and Theoretical Faculties in a sample of teachers at Tishreen University. The sample consists of120 teachers, who were recruited from some Applied Faculties (Economy, Sciences, Civil Engineering, Electrical and mechanical engineering, and Pharmacy) and from some Theoretical Faculties (Education, Jura and Literatures). We used an adapted and confirmative version of Maslach and others to asses burnout (MBI; Maslach, Jackson, & Leiter,1996) as well as an adapted and confirmative version subscale of the Spector Job Satisfaction Survey to assess support (JSS; Spector, 1995) .Optimism was measured by using an adapted and confirmative version of Satow and Schwarzer Optimism scale (Satow&Schwarzer,(1999. Results indicated that : • There wasno a significant relation between teacher’ s burnout and support they received from the management but there was a significantly positive relation between optimism and support as well as a negative a significantly relation between burnout and optimism • Burnout was negatively associated with experience • No a significantly differences between the mean scores of the teachers in Applied and Theoretical faculties in burnout , optimism and suppor

Synthesis and Antitubercular Evaluation of Some Novel 1,2,3,6-tetrahydropyrimidine-5-carbonitrile

         In an attempt to find a new class of antitubercular agents, a series of 1,2,3,6-tetrahydropyrimidine-5-carbonitrile were prepared via the reaction  of ethyl N-ethoxycarbonylbenzimidate 2a-b with cyanoacetanilide derivatives 1a-c. These compounds were screened for their antitubercular activity against M. tuberculosis. Several analogues, such as 2,6-dioxo-1-phenyl-4-p-tolyl-1,2,3,6-tetrahydropyrimidine-5-carbonitrile 3a, 1-benzyl-2, 6-dioxo-4-p-tolyl-1,2,3,6-tetrahydropyrimidine-5-carbonitrile 3c and 1-benzyl-2, 6-dioxo-4-phenyl-1,2,3,6-tetrahydropyrimidine-5-carbonitrile 3d exhibited a potent antitubercular activity with an MIC values ranging from 10-35 µg/ml. Structures of the newly synthesized compounds were established by spectral data and HRMS

The relationship between Emotional intelligence Anger among the hearing impaired depending "Field Study in Lattakia City. "

 This research is trying to identify the relationship between emotional intelligence and anger among the hearing-impaired, and summed up the research problem the following question: Is there a correlation between emotional intelligence and anger among the hearing-impaired depending on the variables of the study? To achieve the goals of this research was to use descriptive method on a sample of 50 children from hearing-impaired, Manner comprehensive survey on the deliberate from the Institute of Special Education for disabled sample acoustically and associations and centers, and use the emotional intelligence scale (the researcher) and a measure of anger (the researcher) for the data of the sample was used as a set of statistical techniques (alpha coefficient of Krumbach, retail midterm, and a test of significance Stodnt t-test, Pearson) and the research found the following results: 1- There are no significant differences between the mean scores of the hearing impaired on the anger scale depending on the variable sex. 2- There are no statistically significant differences between the mean scores of the hearing impaired on emotional intelligence scale depending on the variable sex. 3. There is correlation statistically significant differences between the scores of emotional intelligence and anger among the hearing-impaired children

Attenuation of Mycobacterium species through direct and macrophage mediated pathway by unsymmetrical diaryl urea

Tuberculosis is a major threat for mankind and the emergence of resistance strain of Mycobacterium tuberculosis (Mtb) against first line antibiotics makes it lethal for human civilization. In this study, we have synthesized different diaryl urea derivatives targeting the inhibition of mycolic acid biosynthesis. Among the 39 synthesized molecules, compounds 46, 57, 58 and 86 showed MIC values ≤ 10 μg/ml against H37Rv and mc26030 strains. The best molecule with a methyl at ortho position of the first aromatic ring and prenyl group at the meta position of the second aromatic ring showed the MIC value of 5.2 μg/ml and 1 μg/ml against H37Rv and mc26030 respectively, with mammalian cytotoxicity of 163.4 μg/ml. The effective compounds showed selective inhibitory effect on mycolic acid (epoxy mycolate) biosynthesis in14C-radiolabelled assay. At the same time these molecules also executed their potent immunomodulatory activity by up-regulation of IFN-γ and IL-12 and down-regulation of IL-10.Fil: Velappan, Anand Babu. Sastra University; IndiaFil: Charan Raja, Mamilla R.. Sastra University; IndiaFil: Datta, Dhrubajyoti. Indian Institute of Science Education and Research Pune; IndiaFil: Tsai, Yi Ting. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Halloum, Iman. Université de Montpellier; Francia. Centre National de la Recherche Scientifique; FranciaFil: Wan, Baojie. University of Illinois; Estados UnidosFil: Kremer, Laurent. Université de Montpellier; Francia. Inserm; Francia. Centre National de la Recherche Scientifique; FranciaFil: Gramajo, Hugo Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Franzblau, Scott G.. University of Illinois; Estados UnidosFil: Kar Mahapatra, Santanu. Sastra University; IndiaFil: Debnath, Joy. Sastra University; Indi

Requirements Of Applying Marketing Quality Management In Commercial Banks (Field Study On Private Commercial Banks Working In Syria)

The study aimed to determine the availability of the requirements of applying the marketing quality management in private commercial banks operating in Syria, where the study community is among the workers in these banks. The study used the deductive approach as a general approach to research, descriptive approach, and the questionnaire as a tool to collect data from a soft sample, where (150) questionnaires were distributed and (135) questionnaires valid for analysis were retrieved. The study adopted the appropriate analysis methods using the spss statistical package such as Studenet test, Pearson correlation coefficient, variance analysis and regression study. The study found that there is a good reality for the requirements of applying the marketing quality in the Syrian private commercial banks represented by integrated, internal and social marketing and relationship marketing. هدفت الدراسة إلى تحديد مدى توافر متطلبات تطبيق إدارة الجودة التسويقية في المصارف التجارية الخاصة العاملة في سورية، حيث تكون مجتمع الدراسة من العاملين في هذه المصارف. استخدمت الدراسة المقاربة الاستنباطية كمنهج عام للبحث، والمنهج الوصفي، والاستبانة كأداة لجمع البيانات من عينة ميسرة، حيث تم توزيع (150) استبانة وتم استرداد (135) استبانة صالحة للتحليل. واعتمدت الدراسة أساليب التحليل المناسبة باستخدام الحزمة الاحصائية spss كاختبار ستودنيت ومعامل الارتباط بيرسون وتحليل التباين ودراسة الانحدار. وقد توصلت الدراسة إلى وجود واقع جيد لمتطلبات تطبيق الجودة التسويقية في المصارف التجارية الخاصة السورية والمتمثلة بالتسويق المتكامل والداخلي والاجتماعي والتسويق بالعلاقات

An Innovative Plate Concept for Rotational Guided Growth: A Porcine Pilot Study

BackgroundRotational deformities in children are currently treated with an osteotomy, acute de-rotation, and surgical fixation. Meanwhile, guided growth is now the gold standard in pediatric coronal deformity correction. This study aimed to evaluate the feasibility of a novel implant intended for rotational guided growth (RotOs Plate) in a large porcine animal model.MethodologyA submuscular plate was inserted on the medial and lateral aspect of the distal femoral physis of the left femur in 6 pigs. Each plate was anchored with a screw in the metaphysis and epiphysis respectively. The plates were expected to rotate the femur externally. The right femur acted as a control in a paired design. The animals were housed for 12 weeks after surgery. MRI scanning of both femora was performed before euthanasia after 12 weeks. Rotation was determined as the difference in the femoral version on MRI between the operated and non-operated femur after 12 weeks.ResultsExternal rotation in all operated femurs was observed. The mean difference in the femoral version on MRI between operated and non-operated femurs was 12.5° (range 9°-16°). No significant changes in axial growth were detected.ConclusionsThis study shows encouraging results regarding rotational guided growth, which may replace current invasive surgical treatment options for malrotation in children. However, further studies addressing potential secondary deformities are paramount and should be carried out

Resistance to thiacetazone derivatives active against Mycobacterium abscessus involves mutations in the MmpL5 transcriptional repressor MAB_4384

Available chemotherapeutic options are very limited against Mycobacterium abscessus, which imparts a particular challenge in the treatment of cystic fibrosis (CF) patients infected with this rapid-growing mycobacterium. New drugs are urgently needed against this emerging pathogen, but the discovery of active chemotypes has not been performed intensively. Interestingly, however, the repurposing of thiacetazone (TAC), a drug once used to treat tuberculosis, has increased following the deciphering of its mechanism of action and the detection of significantly more potent analogues. We, therefore, report studies performed on a library of 38 TAC-related derivatives, previously evaluated for their antitubercular activity. Several compounds, including D6, D15 and D17, were found to exhibit potent activity in vitro against M. abscessus, Mycobacterium massiliense and Mycobacterium bolletii clinical isolates from CF and non-CF patients. Similarly to TAC in M. tuberculosis, the three analogues act as pro-drugs in M. abscessus, requiring bioactivation by the EthA enzyme, MAB_0985. Importantly, mutations in the transcriptional TetR repressor MAB_4384, with concomitant upregulation of the divergently oriented adjacent genes encoding an MmpS5/MmpL5 efflux pump system, accounted for high cross-resistance levels among all three compounds. Overall, this study uncovered a new mechanism of drug resistance in M. abscessus and demonstrated that simple structural optimization of the TAC scaffold can lead to the development of new drug candidates against M. abscessus infections