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1000 tulosta hakusanalla Mohamed A. El-Reedy

Pontos gerais sobre o ensino e a aprendizagem da física e da química

Pontos gerais sobre o ensino e a aprendizagem da física e da química

El Hassane Touli; Mohamed Radid; Mohammed Talbi

Edicoes Nosso Conhecimento
2025
pokkari
Este livro centra-se na forma o dos professores de f sica e qu mica nos liceus marroquinos como alavanca de desempenho. O principal objetivo explorar as rela es entre os professores de f sica e qu mica, as suas pr ticas na sala de aula e as suas representa es e cren as sobre a abordagem do ensino e da avalia o nesta disciplina. Este conhecimento poder contribuir para a conce o de programas de forma o de professores de ci ncias f sicas mais eficazes em Marrocos.
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Specie di piante medicinali che crescono a Santa Caterina, nel Sinai meridionale, in Egitto

Specie di piante medicinali che crescono a Santa Caterina, nel Sinai meridionale, in Egitto

Abdelraouf Moustafa; Mohamed Zaghloul; Najmah El-Shaieb

Edizioni Sapienza
2026
nidottu
Questo libro tratta l'ecologia di tre specie di piante medicinali: Origanum syriacum, Teucrium polium e Verbascum sinaiticum. Il libro include una valutazione ecologica del comportamento di distribuzione di queste tre specie nelle montagne del Sinai, con particolare attenzione ai fattori ambientali che influenzano la distribuzione, utilizzando tecniche multivariate che chiariscono la relazione tra le specie e le condizioni ambientali. Il libro include anche una descrizione completa dell'analisi del suolo per gli habitat pi comuni e spiegazioni dettagliate delle principali minacce che influenzano la presenza di queste piante medicinali. Il lavoro supportato da un elenco di tutte le specie associate a queste specie medicinali e da ulteriori informazioni sulla germinazione dei semi e sul comportamento di conservazione dei semi per le specie studiate, oltre al contenuto di umidit di equilibrio e alle isoterme di umidit e alla loro variazione tra le popolazioni. Infine, il libro introduce un piano di conservazione per queste importanti piante medicinali al fine di proteggerle dall'estinzione nel Sinai meridionale.
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The Arab Economies in a Changing World

The Arab Economies in a Changing World

Noland Marcus; Pack Howard; Mohamed El–erian

The Peterson Institute for International Economics
2007
nidottu
The tragic events of 9/11 and the subsequent war in Iraq have focused international attention on a nexus of problems involving economic underperformance, problematic internal politics, and externalization of domestic dissent in the Muslim world. This book examines the economics of the Middle East, with the aim of identifying changes to economic policy that could address at least the economic component of the challenges facing this part of the globe. The authors analyze the interaction of trade, productivity growth, and the political difficulties that may ensue as these countries move towards greater openness. Relevant comparisons are drawn from the experience of the transition economies and India on potentially successful policies and those likely to exacerbate existing problems.
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The Arab Economies in a Changing World

The Arab Economies in a Changing World

Marcus Noland; Howard Pack; Mohamed El–erian

The Peterson Institute for International Economics
2011
nidottu
Compared to other regions of the world, the Middle East was once unique in its combination of authoritarianism and stultifying stability: No longer. Beginning in Tunisia, a wave of political upheaval has rolled across the region, reaching Egypt, Bahrain, Libya, and other countries caught between rising expectations and their antediluvian political systems, abetted by pan-Arab news channels and social networking media. This book examines the economics of the Middle East, with the aim of identifying changes to economic policy that could address at least the economic component of the challenges facing this part of the globe. The authors analyze the interaction of trade, productivity growth, and the political difficulties that may ensue as these countries move towards greater openness. Relevant comparisons are drawn from the experience of the transition economies and India on potentially successful policies and those likely to exacerbate existing problems. This new second edition contains a new introduction from Mohamed A. El-Erian and a new postscript.
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Simulation du dispositif d'une cellule solaire pérovskite à base d'iodure de césium et d'étain

Simulation du dispositif d'une cellule solaire pérovskite à base d'iodure de césium et d'étain

Soufi Hadjer; Rahmoun Khadidja; Slimani Mohamed El Amine

Editions Notre Savoir
2024
pokkari
Les cellules solaires p rovskite repr sentent une technologie prometteuse et en pleine volution dans le domaine de l' nergie photovolta que. Ces cellules utilisent des mat riaux structure cristalline p rovskite pour convertir la lumi re du soleil en lectricit . Connues pour leur faible co t de production et leur rendement lev , les cellules solaires p rovskites base d'iodure de c sium et d' tain ont fait l'objet d'une attention particuli re dans le domaine de la recherche et du d veloppement. Nous avons la possibilit d'utiliser des cellules solaires am lior es dans un collecteur solaire hybride photovolta que/thermique (PV/T) pour produire simultan ment de l' lectricit et de la chaleur.
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Simulação do dispositivo da célula solar de perovskite à base de iodeto de césio e estanho

Simulação do dispositivo da célula solar de perovskite à base de iodeto de césio e estanho

Soufi Hadjer; Rahmoun Khadidja; Slimani Mohamed El Amine

Edicoes Nosso Conhecimento
2024
pokkari
As c lulas solares de perovskite representam uma tecnologia promissora e em r pida evolu o no dom nio da energia fotovoltaica. Estas c lulas utilizam materiais com uma estrutura cristalina de perovskite para converter a luz solar em eletricidade. Conhecidas pela sua produ o de baixo custo e elevada efici ncia, as c lulas solares de perovskite base de iodeto de c sio e estanho ganharam grande aten o na investiga o e desenvolvimento. As suas propriedades nicas permitem flexibilidade na conce o e aplica o, o que as torna um potencial fator de mudan a para as energias renov veis. Temos a capacidade de utilizar c lulas solares melhoradas num coletor solar h brido fotovoltaico/t rmico (PV/T) para produzir eletricidade e calor simultaneamente.
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Simulazione del dispositivo di una cella solare in perovskite a base di cesio-stagno-ioduro

Simulazione del dispositivo di una cella solare in perovskite a base di cesio-stagno-ioduro

Soufi Hadjer; Rahmoun Khadidja; Slimani Mohamed El Amine

Edizioni Sapienza
2024
pokkari
Le celle solari di perovskite rappresentano una tecnologia promettente e in rapida evoluzione nel campo del fotovoltaico. Queste celle utilizzano materiali con struttura cristallina a perovskite per convertire la luce solare in elettricit . Conosciute per la loro produzione a basso costo e l'elevata efficienza, le celle solari di perovskite a base di ioduro di stagno e cesio hanno guadagnato un'ampia attenzione nella ricerca e nello sviluppo. Le loro propriet uniche consentono una certa flessibilit nella progettazione e nell'applicazione, rendendole un potenziale cambiamento per le energie rinnovabili. Abbiamo la possibilit di utilizzare le celle solari migliorate all'interno di un collettore solare ibrido fotovoltaico/termico (PV/T) per produrre contemporaneamente elettricit e calore.
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Studies on Some Xylanase Producing Bacteria

Studies on Some Xylanase Producing Bacteria

Reham A El Fayoumy; Mohamed Abou-Dobara; Ahmed Kassem El Sayed

LAP Lambert Academic Publishing
2020
pokkari
Xylanase enzymes hydrolyze xylan substrates and play a major role in industries. Xylanases are most distributed enzymes in bacteria, fungi and plants. For commercial applications, xylanases should ideally be produced quickly and in large quantities from simple and inexpensive substrates. Natural xylan sources such as agricultural and forestry wastes, paper industry wastes and various fruit wastes are potential raw materials for xylanase production.
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Gluten-free Healthy Cereal-based Products

Gluten-free Healthy Cereal-based Products

Mohamed Salem; Prof Fatma M El-Zayet; Prof Adel a Shatta

Lap Lambert Academic Publishing
2021
pokkari
The aglutenics biscuit and pasta are intended to those persons who are suffering gluten intolerance, also named celiac disease. In this study, the gluten-free biscuits were prepared from the following flours: rice flour (RF), soybeans flour (SF), amaranth flour (AF), quinoa flour (QF), sweet potato flour (SPF), potato flour (PF) and taro flour (TF). In gluten-free pasta, AF, QF, SPF and TF were used with: rice flour, xanthan-gum, and egg. The optimization of the aglutenics pasta manufacture recipe was realized through Response Surface Methodology (RSM). Samples of biscuits or pasta were subjected to the physico-chemical and sensorial analyses in order to assess the blending influence on the biscuits or pasta quality. The blend with 50: 50 (RF: AR or OF), 40:30:30 (RF: AF: QF) led to the highest acceptability, besides RF 100% and RF (70%): SF (10%): tuber flours (20%) SPF (20%): PF (15%): TF (10%)]. The optimum conditions (Desirability= 0.662) obtained for gluten-free pasta were amaranths (10%), quinoa (12.5%), sweet potato (15%) and taro (2%) flours.
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An in-silico study of tacrine derivatives potency against Alzheimer

An in-silico study of tacrine derivatives potency against Alzheimer

Mohamed El Fadili; Hatem A Abuelizz; Menana Elhallaoui

Lap Lambert Academic Publishing
2024
pokkari
Tacrine was originally used as a palliative treatment for Alzheimer's disease (AD). But early applications soon revealed a number of its side effects on human health. That's why we decided to examine the effectiveness of novel tacrine derivatives known for their potent inhibition of GluN2B-NMDA receptors, to discover the leading candidates for treating AD in terms of safety and molecular stability towards NMDA receptors. As a result, CoMFA and CoMSIA models were generated using 3D-QSAR study, indicating that Electrostatic, Hydrophobic, and Steric fields have a vital function in the NMDAR-antagonizing activities. The pharmacokinetics properties of in-silico ADME-Toxicity confirm the safety of C24 and C27 compounds, which were discovered to be free from any skin allergy toxicity and hepatotoxic effects, and would be able to passively break through the blood-brain barrier and ultimately penetrate the central nervous system with a good level of absorption. Both non-toxic inhibitors interact specifically with the main active sites of NMDA receptor (5EWJ.pdb), with an excellent level of molecular stability during 100 ns of molecular dynamics simulation time.
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