574 research outputs found
Correction: An efficient and rapid intramolecular cyclization of a quadruple Mannich reaction for one-pot synthesis of pentaazaphenalenes and their antimicrobial activities
No full textCorrection for ‘An efficient and rapid intramolecular cyclization of a quadruple Mannich reaction for one-pot synthesis of pentaazaphenalenes and their antimicrobial activities’ by Ahmed F. M. EL-Mahdy et al., RSC Adv., 2016, 6, 92134–92143.</p
Pre-participation musculoskeletal and cardiac screening of male athletes in the United arab emirates.
No full textThis study presents the results of pre-participation musculoskeletal and cardiac screening using the Lausanne recommendations, which include a personal and family history, physical examination and electrocardiography. Cross sectional study using the Lausanne screenings and the European Society of Cardiology (ESC) recommendations carried out at Al-Ahli club in Dubai, United Arab Emirates. 230 male athletes participating in organised sports were included. Exclusion criteria were those under 14 or over 35 years old, females and athletes with established cardiovascular disease. Primary outcome are the results of Lausanne screening with outline of the negative, positive and false positive results and number needed to screen. Secondary outcomes include the results of musculoskeletal and neurological screening. A total of 174 (76%) athletes had a negative screening result. Fifty-four athletes (23%) underwent additional testing. Forty-seven athletes (20.4%) had false positive screening results. Seven athletes (3%) had a positive screening result and four athletes (2%) were restricted from sport. The number of athletes needed to screen to detect one lethal cardiovascular condition was 33 athletes. The Lausanne recommendations are well suited for the United Arab Emirates. The number needed to screen to detect one athlete with serious cardiovascular disease is acceptable at 33
La aparición de la esfera pública Abbasí: el caso de al-Mutanabbī y tres mecenas de extracción social media
Get PDFThe tenth century in Iraq and Syria saw an unprecedented rise in the number of canonical poets who were delivering glorious praise hymns (madīḥ) to middling members of society. Scholars have posed many theories in the past 30 years to explain the function and purpose of praise hymns for royalty and rulers, but why would ordinary men who had no hope of rulership pay painful sums to commission praise hymns in their favor? This article examines the emergence of a new kind of sociability and patronage in the tenth century that enabled middling people to form alliances and exercise influence in shaping ideals of government, leadership and manhood. Examples are given of poems to patrons of middle rank who gain glory and influence via the artistic endorsement of al-Mutanabbī (d. 965): The first ode restores the public dignity of a nineteen-year-old soldier who lost his face in battle; in the second ode, the poet glorifies and defends a state clerk who had little-known Sufi leanings; in the third ode, the poet vindicates an unmasked pseudo- Muslim who was in private a Christian. Using J. Habermas’s theory of the “Public Sphere,” I show the way these odes illustrate how middling members of society gained influence in a public sphere of participation and took measures to preserve that influence.En el siglo X, y en la zona de Siria e Iraq, el número de poetas canónicos que dedicaron panegíricos (madīḥ) a miembros no destacados de la sociedad experimentó un incremento sin precedentes. A lo largo de los últimos treinta años, especialistas en este campo han formulado diversas teorías sobre los himnos de alabanza dedicados a la realeza y a los gobernantes, pero ¿qué llevó a personas corrientes, sin ninguna aspiración de llegar a gobernar, a pagar grandes cantidades de dinero por himnos de alabanza en su honor? Este artículo plantea la aparición de un nuevo tipo de sociabilidad y un nuevo patronazgo en el siglo X. Ambos elementos habrían permitido a miembros de las categorías sociales inferiores formar alianzas y tener influencia a la hora de dar forma a los ideales del gobierno, el liderazgo y la propia hombría. El artículo presenta, a modo de ejemplos, poemas dirigidos a personas corrientes que adquirieron gloria e influencia gracias al apoyo artístico de al-Mutanabbī (m. 965). El primer poema le devuelve la dignidad pública a un soldado de diecinueve años cuyo rostro había quedado desfigurado en combate; en el segundo, el poeta glorifica y defiende a un funcionario del gobierno con inclinaciones sufíes poco conocidas; en el tercero, el poeta limpia el nombre de cierto pseudo-musulmán que era cristiano en privado. A partir de la teoría de la “esfera pública” de J. Habermas, el artículo describe el modo en el que estos poemas ilustran cómo miembros comunes de la sociedad adquirieron influencia en la esfera pública de participación y usaron los medios a su alcance para conservar esa influencia
Ranitidine for pruritus management in an infant
No full textChronic pruritus is defined as a sensation driving the urge to scratch persisting longer than 6 weeks. Pruritus is typically treated through antagonism of histamine receptors, with H1, H3 and H4 receptors having a dominant role.No Full Tex
Recommended from our members
KC 4.4 Building Multi-cultural Understanding Through Translation and Dialogue: Languages and terminologies for ICOMOS IFLA ISCCL Rural Landscapes Principles
No full textRafaella Laviscio, Architect, Phd, adjunct professor at Politecnico di Milano (Italy) where she carries out research on the issues of protection and enhancement of cultural heritage and landscape in the context of national and international research programs. She is member of ICOMOS Italia and ISCCL and responsible for the scientific and organizational secretariat of the "World Rural Landscape Initiative". She is expert member of several Landscape Commission in Milan metropolitan area. She has participated in national and international conferences on the theme of cultural heritage and landscape. She is author of publications on the issues of knowledge and evaluation of cultural heritage.
Hossam Mahdy is an Egyptian and British conservation architect. Acquired PhD from Glasgow University, MSc from University of Louvain and BSc from Ain Shams University. His work focuses on Islamic views on the conservation of cultural heritage, Arabic terminology of conservation, and the translation of conservation literature from English into Arabic. He is an advisor to ICOMOS Secretariat on World Heritage and a consultant to EAMENA Project at Oxford University on Arabic heritage terminology and translations. Hossam is a member of ICOMOS-UK and ICOMOS-CIAV. He worked extensively on the study and conservation of vernacular built heritage in the Arab region.
Haeedeh Laleh is professor of Islamic archaeology at the Department of Archaeology, founderand head of the Bioarchaoelogy Laboratory, Central Library: University of Tehran. She is currently vice president for the Middle East region of the ICOMOS/IFLA International Scientific Committee on Cultural Landscapes (ISCCL), and board member of Iran National committee of ICOMOS.The spread and put in action of the Principles’ text in the national context require, first of all, the translation of the original English version. It is not automatic and requires different considerations and challenges (as linguistic and cultural). For instance, some English terms have no known equivalent Arabic terms (such as landscape, vernacular and integrity), other terms have different equivalents used by different individuals or institutions, others (as bio-cultural diversity, conservation, heritage, sustainable development) require some specifications due to differences in worldview and value systems in the different national contexts (and according to different disciplinary sectors in the same national context). The Knowledge Cafe would encourage a multi-cultural discussion on building shared understanding of the issues and challenges regarding the translation and terminology. It will be organized as follows: Raffaella Laviscio will briefly introduce the topic and present, as responsible for the Italian translation, the challenges that arise from this particular context such as the need for a multidisciplinary approach (as required by the principles’ text) that clashes in Italy with a certain sectoriality of competences concerning rural landscape. Hossam Mahdy and Khalid El Harrouni, responsible for the Arabic translation, reflect on the challenges concerning Arabic terms for conservation-related concepts, methods and actions due to differences in worldview and value systems between traditional Arabic-speaking communities and modern Western/Westernized worldviews and value systems. Haeedeh Lahed and Gity Homa Irani Behbahani give some notes concerning the Middle East and the Iranian World. Li Xie and Hang Lu join the discussion by reflections concerning Chinese translation of the Principles’ Text. The open discussion will be guided by some questions: how do different contexts define and interpret words like landscape, rural landscape, heritage and so on? what is the scope of the Principles’ text that the different national socio-economic conditions define? what are the links with other sectors, policies and emerging themes in the national contexts that must necessarily be highlighted? The goal will be to gather as many diverse suggestions from around the globe on which key words may need to have local linguistic interpretations so that the text can be interpreted most appropriately for local use and to the further revision and implementation of the Principles' text on a world scale
The Perceptions of Instructional Supervisors about Instructional Supervision Developments and Challenges in the Sultanate of Oman: A Qualitative Study
Get PDFهدفت الدراسة إلى إجراء استقصاء نوعي لتصورات عينة من المشرفين التربويين والمشرفين الأوائل وقيادات الإشراف في سلطنة عمان، عن واقع الإشراف التربوي بسلطنة عمان، من حيث مظاهر التطوير التي شهدتها المنظومة في ظل التجديدات التربوية الحالية، بالإضافة إلى التحديات التي ما زالت تعيق المشرفين التربويين عن تحقيق أهداف العملية الإشرافية على النحو المطلوب. جُمعت بياناتُ الدراسة من خلال مقابلات جماعية مع أفراد العينة الذين بلغ عددهم (60) فردًا من خمس محافظات، هي: مسقط، وظفار، وجنوب الباطنة، وشمال الشرقية، ومسندم، وقد أشارت النتائج إلى وجود عدد من التغييرات الإيجابية التي اعتبرها المشاركون تطويرًا للعملية الإشرافية، مثل التنويع في الأساليب الإشرافية، وتمكين المعلم الأول بوصفِه مشرفًا مقيمًا، وتوظيف التكنولوجيا في العملية الإشرافية، وتطوير تدريب المشرفين التربويين، إلا أن النتائج أظهرت أيضًا عددًا من التحديات التي يرى المشاركون أنها تعيق منظومة الإشراف عن تحقيق أهدافها، منها: تحديات إدارية وتنظيمية، وتحديات مالية ومادية، وتحديات فنية. وقد انتهت الدراسة بتقديم عدد من التوصيات لتطوير منظومة الإشراف التربوي في سلطنة عمانThis study carried out a qualitative investigation of the perceptions of a sample of instructional supervisors, senior supervisors and supervision leaders in the Sultanate of Oman, about the reality of instructional supervision in the Sultanate, in terms of its development in light of the current educational changes, in addition to the challenges that still hinder the supervisors from achieving the goals of the supervisory process. Data was collected through group interviews with a sample of 60 individuals from five governorates: Muscat, Dhofar, Al Batinah South, Al-Sharqiya North, and Musandam. The results indicated that there was a number of positive changes that the participants considered to be a sign of development in the supervisory process, such as diversification in supervisory methods, empowering the senior teacher as a resident (school-based) supervisor, employing technology in the supervisory process, and developing supervision training. However, the results also showed a number of challenges that the participants thought would hinder supervision from achieving its goals, including administrative and organizational challenges, financial and material challenges, and technical challenges. The study concluded with a number of recommendations to improve instructional supervision in the Sultanate
DEBT SUSTAINABILIY AND ECONOMIC GROWTH IN EGYPT
Get PDFThe persistence growth of Egypt's public domestic debt has raised concerns regarding its impact on economic growth and fears are being express about the debt sustainability. Utilizing data for the period 1981-2006, the results obtained from cointegration model reveal that the public domestic debt in Egypt has a robust negative impact on growth. The sustainability of debt was examined used some algebra methods. The results suggested that the recent path of debt followed in Egypt was sustainable. For debt to remain sustained in future, substantial fiscal reforms are needed and policies should be adopting to maintain an increasing growth-interest rate differential.Public Domestic Debt; Fiscal Budget; Debt Sustainability; Economic Growth; Cointegration.
Physiological and Neurobehavioral Disturbances Induced by Al2O3 Nanoparticle Intoxication in Nile Tilapia Fish: Benefits of Dietary Chamomile Essential Oil
Get PDFDespite the usage of nanoparticles (NPs) is rapidly increasing, several experts have noted the risk of their release into ecosystems
and their potential negative impacts on biological systems. However, the available studies on the neurobehavioral impacts of
aluminum oxide nanoparticles (Al2O3NPs) on aquatic organisms are little. Hence, this study targeted to ascertain the harmful
effects of Al2O3NPs on behavioral characteristics and genotoxic and oxidative damages in Nile tilapia fish. In addition, the
beneficial role of chamomile essential oil (CEO) supplementation in reducing these effects was also investigated. In the current
study, fish were distributed into 4 equal groups (n = 60 fish per group). The control group was fed a plain diet only, the CEO
group received a basic diet complemented with CEO at a level of 2 mg/kg diet, the ALNP group received a basic diet and was
exposed to an approximate concentration of 1/10th LC50 of ALNPs nearly 5.08 mg/L, and the combination group (ALNPs/
CEO group) received a basal diet coadministered with ALNPs and CEO at the aforementioned percentages. The findings
revealed that O. niloticus exhibit neurobehavioral changes along with changes in the level of GABA, monoamines in the brain
tissue, and serum amino acid neurotransmitters, besides a reduction of AChE and Na+/K+-ATPase activities. In addition to
brain tissue oxidative damage with upregulation of proinflammatory and stress genes, such as HSP70 and caspase-3,
supplementation of CEO significantly reduced the negative impacts of ALNPs. These results showed that CEO has
neuroprotective, antioxidant, genoprotective, anti-inflammatory, and antiapoptotic properties in fish that have been exposed to
ALNPs. Therefore, we advise its usage as a valuable addition to fish diet
A Comparative Study of Prediction Techniques for Supersonic Missile Aerodynamic Coefficients / Loai A. El-Mahdy … [et al.]
No full textEvaluating the aerodynamic coefficients of flying vehicles such as missiles is a key step in their design and development procedures. In practice, the aerodynamic coefficients can be estimated using experimental measurements, numerical simulations, or using empirical and semi-empirical engineering tools. In the present paper, these three approaches are compared in the context of examining the aerodynamic coefficients of a fin-stabilized tactical missile. Supersonic flight conditions up to Mach 4 at incidence up to 18 degrees are considered. Lift and drag coefficients as well as the centre of pressure locations based on the three approaches are compared. The flow features around the missile are explored based on the numerical simulations
Influence of Friction Stir Processing on the Microstructure and Mechanical Properties of a compocast AA2024-Al2O3 nanocomposite
Get PDFThe effect of friction stir processing (FSP) on the microstructure and mechanical properties of a semi-solid cast AA2024-1wt.%Al2O3 nanocomposite was investigated. For comparison, plates of unreinforced AA2024 alloy were also cast and processed at the same FSP conditions (400 rpm, 20mm/min). The microstructure of all the produced materials was investigated using optical microscopy (OM), scanning electron microscopy (SEM) and electron backscattered diffraction (EBSD). Microhardness and tensile tests were carried out on the unreinforced AA2024 alloy and AA2024-Al2O3 nanocomposite before and after FSP. The addition of 1wt% of Al2O3 nanoparticles significantly reduced the grain size of both the cast and FSPed microstructures, leading to a grain size reduction from 28 μm to 18 μm in the cast condition, and from 3.7 μm to 2.7 μm after FSP. The application of FSP to AA2024-Al2O3 nanocomposite enhanced the tensile strength and yield strength by 71% and 30%, respectively, in comparison to the as cast matrix, as a result of the uniform distribution of Al2O3 reinforcement and grain refinement of Al matrix. The combined application of compocasting and FSP resulted to be a promising method to treat casting defects and to produce nanocomposites characterised by good reinforcement dispersion and high strength and ductility
- …
