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Deeper Integration or Open Regionalism in the Indian Ocean Rim Association (IORA): A CGE Approach
Abdallah Akintola(Abdallah Akintola ),Houcine Boughanmi(Houcine Boughanmi ),Alessandro Antimiani(Alessandro Antimiani ),Lokman Zaibet(Lokman Zaibet ),Hemesiri Kotagama(Hemesiri Kotagama ) 세종대학교 경제통합연구소 2022 Journal of Economic Integration Vol.37 No.4
The Indian Ocean Rim Association (IORA) is a regional association based on the principle of open regionalism to promote liberalization through trade and investment facilitation. This study compares two main scenarios with the ingredients of a deeper regional integration compared to the IORA's present open regionalism status. Scenario I evaluates the effects of gradual tariff cuts on IORA, while Scenario II combines the impact of tariff cuts, non-tariff measures (NTM) reduction, and trade facilitation. A recent recursive dynamic model, called Global Trade Analysis Project recursive dynamic model (GTAP-RD), was used to understand the adjustment path. The result shows welfare gain for a ll IORA countries when a t rade liberalization involving tariff cuts is complemented with NTM reduction and trade facilitation. In addition, the “NTM spillover” effect on some non-IORA members (the rest of Gulf Cooperation Council, the rest of Greater Arab Free Trade Agreement, and the United Kingdom) was observed. The results suggest that IORA has more to gain if it involves a deeper regional integration than the present form of open regionalism.
Abdallah, M.,El-Etre, A. Y.,Abdallah, E.,Eid, Salah 대한화학회 2009 대한화학회지 Vol.53 No.5
0.1 M 중탄산소듐 용액에서 납전극부식에 대한 로소니아, 감초뿌리 및 카로브 추출물수용액의 부식방지작용에 대한것을 정전류극성방법을 사용해 연구하였다. 이들 물질들의 부식방지작용을 지적해주는 것으로 이들 물질들이 존재할 때 부식속도가 감소하는 것이 발견되었다. 부식방지효율은 추출물농도가 증가하면 증가한다. 이들 추출물의 부식방지작용은 납표면에 이들 추출물이 흡착되어 물질 및 하전이동의 장벽을 만들어 나타내는 것으로 설명되었다. 이들 추출물의 납표면에 흡착은 자발적으로 일어나며, Freundlich 등온흡착을 따르는 것으로 발견되었다. 또한, 변전위양극분극법을 사용해 이들 추출물은 염소를 포함한 용액에서 납의 움푹패이게 하는 부식으로부터 잘 보호해주는 것이 발견되었다. The inhibitive action of the aqueous extract of lawsonia, licorice root and carob toward the corrosion of tin electrode in 0.1 M $NaHCO_3$ solutions was investigated using galvanostatic polarization measurements. It was found that the corrosion rate decreases in the presence of these extracts indicating the inhibiting of these compounds. The inhibition efficiency increases with increasing extract concentration. The inhibition action of these extracts was explained in view of adsorption of its compounds onto the tin surface, making a barrier to mass and charge transfer. The adsorption of these extracts on the tin surface was found to be a spontaneous process and follow Freundlich adsorption isotherm. It is also found that these extracts provide a good protection to tin against pitting corrosion in chloride containing solution using potentiodynamic anodic polarization technique.
Power Aware Ant Colony Routing Algorithm for Mobile Ad-hoc Networks
Alaa E. Abdallah,Emad E. Abdallah,Feras Hanandeh,Ashraf Aljammal,Essam Al-Daoud 보안공학연구지원센터 2015 International Journal of Software Engineering and Vol.9 No.12
Due to the limited lifetime of nodes in ad hoc and sensor network, energy efficiency needs to be an important design consideration in any routing algorithm. Most of the existing Ant colony based routing algorithms grantee the packet delivery. However, they suffer from the high power consumption due to the huge number of control messages to establish and maintain a route from a source to a destination. This paper introduces two new power-aware ant colony routing algorithms for mobile ad hoc network under three main concurrent constraints. (1) Localized algorithms where only information about neighbors' nodes is needed. (2) Maximize the algorithms delivery rate. (3) Minimize the energy consumption. Our new algorithms are based on the idea of extracting a sub-graph of the original network topology and combine it with the advantage of ant based routing algorithms. Extensive experiments are conducted to prove that the new algorithms have significant improvement on the network lifetime (up to twice) without affecting the high delivery rate.
Ahmed Saied Rahama ABDALLAH(Ahmed Saied Rahama ABDALLAH ),Mohammed Omar Musa MOHAMMED(Mohammed Omar Musa MOHAMMED ) 한국유통과학회 2023 The Journal of Asian Finance, Economics and Busine Vol.10 No.2
This study aims to evaluate patients’ satisfaction with healthcare services in Hawtat Bani Tamim Governorate during the spread of coronavirus. The importance of this study stems from the fact that Covid-19 is challenging countries all over the world. The study adopted a questionnaire for collecting the data. The sample size reached 231 members. The study applied descriptive statistics and inferential statistical methods to obtain the result of the study. The analysis of the data revealed that most of the participants are satisfied with the healthcare services in hospitals and health centers during the Corona pandemic, Health precautions and distancing measures were applied appropriately, Vaccination against corona was available in health centers and easy to access, and rapid response of health care service providers to patients’ requests. The participant’s opinions showed that the application of Mawid is a suitable method to access healthcare services during Corona, the application is more efficient in providing the required healthcare services and facilitating their access to healthcare services. In addition, patient satisfaction with the “My health” application provided fast and convenient services during the Corona pandemic and provided medical consultations easily.
Abdallah, Nadia M,Noaman, Eman,Eltahawy, Noaman A,Badawi, Abdelfattah M,Kandil, Eman,Mansour, NA,Mohamed, Hebatallah E Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.9
The objective of the present study was to evaluate the anticancer and radio-sensitizing efficacy of a Withania somnifera extract/Gadolinium III oxide nanocomposite (WSGNC) in mice. WSGNC was injected to solid Ehrlich carcinoma-bearing mice via i.p. (227 mg/kg body weight) 3 times/week during 3 weeks. Irradiation was performed by whole body fractionated exposure to 6Gy, applied in 3 doses of 2 Gy/week over 3 weeks. Biochemical analyses as well as DNA fragmentation were performed. Treatment of solid Ehrlich carcinoma bearing mice with WSGNC combined with ${\gamma}$-radiation led to a significant decrease in the tumor size and weight associated with a significant decrease in mitochondrial enzyme activities, GSH content and SOD activity as well as a significant increase in caspase-3 activity, MDA concentration and DNA fragmentation in cancer tissues. Combined treatment of WSGNC and low dose of ${\gamma}$-radiation showed great amelioration in lipid peroxidation and antioxidant status (GSH content and SOD activity) in liver tissues in animals bearing tumors. It is concluded that WSGNC can be considered as a radio-sensitizer and anticancer modulator, suggesting a possible role in reducing the radiation exposure dose during radiotherapy.
Bending analysis of functionally graded porous plates via a refined shear deformation theory
Abdallah Zine,Abdelmoumen Anis Bousahla,Fouad Bourada,Kouider Halim Benrahou,Abdeldjebbar Tounsi,E.A. Adda Bedia,S.R. Mahmoud,Abdelouahed Tounsi 사단법인 한국계산역학회 2020 Computers and Concrete, An International Journal Vol.26 No.1
In this investigation, study of the bending response of functionally graded (FG) porous plates is presented using a cubic shear deformation theory. The properties of the FG-plate vary according to a power-law distribution which is modified to approximate material characteristics for considering the effect of porosities. The equilibrium equations are derived by using the principle of virtual work and solved by using Navier’s procedure. Various numerical results are discussed to demonstrate the influence of the variation of the power index, the porosity parameter and the geometric ratios on the bending response of FG porous plates.
On the fibers of the tree products of groups with amalgamation subgroups
Abdallah Al-Husban,Doaa Al-Sharoa,Rania Saadeh,Ahmad Qazza,R.M.S. Mahmood 한국전산응용수학회 2023 Journal of applied mathematics & informatics Vol.41 No.6
The tree products of groups with amalgamation subgroups are generalizations of the free products of groups with amalgamation subgroup. The aim of this paper is to construct a tree called the standard tree where the tree products of groups with amalgamation subgroups act without inversions and then find the quotient of this action. Furthermore, we show that if the amalgamation subgroups are finite and the factor groups act on disjoint trees then there exists a tree called the fiber tree where the tree products of groups with amalgamation subgroups act without inversions and find the quotients of this action. If each factor is a tree products with amalgamation subgroups, we get a new fiber tree and the corresponding factors.
Abdallah Salem,Zohra Kardous,Naceur Benhadj Braiek,José Ragot 제어·로봇·시스템학회 2012 International Journal of Control, Automation, and Vol.10 No.6
This paper presents two approaches of observer based stabilization for Takagi-Sugeno (T-S) systems with immeasurable premise variables in continuous time case. These approaches are based on the description of the state estimation error by a T-S model. To design the observer based stabilization law, the concept of PDC (Parallel Distributed Compensation) is employed, the sufficient stabilization conditions are proved and expressed in the form of Linear Matrix Inequalities (LMI). The perform-ances of these approaches are tested by simulation for an illustrate example and a physical system representing a two-link robot.
Abdallah Atia,Ahmed Debez,Zouhaier Barhoumi,Chedly Abdelly,Abderrazak Smaoui 한국식물학회 2009 Journal of Plant Biology Vol.52 No.5
Despite seeds and fruits of several halophytes being rich in essential oils and other bioactive substances, the histochemical characterization of these compounds has not received much attention. The aims of the present investigation were to localize the essential oils and the bioactive substances in the seed coat of the oilseed halophyte Crithmum maritimum L. Fruits were collected from the rocky coasts of Tabarka (NW of Tunisia, 36°57′ 12″ N, 08°45′18″ E). C. maritimum L. seed is shown to be surrounded by two envelopes: The first structure is a secretory envelope, consisting in about 20 canals. The second layer represents the endocarp. As revealed by fluorescence and light microscopy, the essential oils, O-dihydroxyphenols and flavonoids, known as bioactive compounds, were accumulated in the canals. The endocarp layer accumulated polysaccharides, O-dihydroxyphenols, and flavonoids. As a whole, these findings highlight the histochemical features and confirm the valuable quality of C. maritimum L. seeds.