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C*-compactness in L-Fuzzy Topological Spaces
Kandil,O.Tantawy,M.Yakout,S.Saleh 한국지능시스템학회 2009 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.9 No.4
In this paper we introduce stronger form of the notion of cover so-called p-cover which is more appropriate. According to this cover we introduce and study another type of compactness in L-fuzzy topology so-called C*-compact and study some of its properties with some interrelation.
Silver Nanoparticles Effect on Antimicrobial and Antifungal Activity of New Heterocycles
Kandile, Nadia G.,Zaky, Howida T.,Mohamed, Mansoura I.,Mohamed, Hemat M. Korean Chemical Society 2010 Bulletin of the Korean Chemical Society Vol.31 No.12
In this study 1-[4-(2-methoxy benzyl)-6-aryl-pyridazin-3(2H)-ylidene] hydrazines were used for the synthesis of new heterocyclic systems such as thiazolidine, phthalazine, pyrazolo, tetrazolo, hydrazide and new pyridazine derivatives to explore the effect of silver nanoparticles on their biological activity efficiency. Structures of the new heterocycles were characterized by the aid of several analytical techniques including; $^1H$-NMR, FTIR and mass spectra. Silver nanoparticles were synthesized by a simple methodology and the formation of silver nanoparticles was confirmed by transmission electron microscopy (TEM) and UV studies. Most of the new prepared heterocycles were evaluated in vitro as new antimicrobial agents. Combination effects of the silver nanoparticles on the antimicrobial activity of the new heterocycles were investigated using the disk diffusion method. Compound 10a exhibited the strongest enhancing effect of silver nanoparticles solution against Aspergillus flavus and Candida albicans.
KANDIL, MAGDA 한국국제경제학회 2002 International Economic Journal Vol.16 No.1
The focus of this investigation is on the asymmetric effects of monetary growth shocks in the pre-and post-war periods of United States history. The downward rigidity of nominal wages in the post-war period appears to be an important factor in differentiating the slope of the aggregate supply curve over time. Accordingly, the response of real output and price to expansionary monetary growth shocks is similar in the pre-and post-war periods. In contrast, the aggregate supply curve is flatter in the face of negative monetary growth shocks in the post-war period, exacerbating output contraction and moderating price deflation. The apparent change in the asymmetric effects of monetary growth shocks has determined economic performance in the United States over time. [E30, E33, E34, E35]
C<SUP>*</SUP>-compactness in L-Fuzzy Topological Spaces
Ali Kandil Saad,Osama A. E. Tantawy,Mohammed Mostafa Yakout,Salem Ali M. Saleh 한국지능시스템학회 2009 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.9 No.4
In this paper we introduce stronger form of the notion of cover so-called p-cover which is more appropriate. According to this cover we introduce and study another type of compactness in L-fuzzy topology so-called C<SUP>*</SUP>-compact and study some of its properties with some interrelation.
Fuzzy soft hyperconnected spaces
A. Kandil,O. Tantawy,S. A. El-Sheikh,Sawsan S. S. El-Sayed 원광대학교 기초자연과학연구소 2017 ANNALS OF FUZZY MATHEMATICS AND INFORMATICS Vol.13 No.6
The purpose of this paper is to introduce concepts of fuzzy soft D-space, fuzzy soft extremally disconnected spaces and fuzzy soft hyperconnected spaces. The relationship between these concepts is investigated. The properties of fuzzy soft hyperconnected spaces are studied.
Trade Flows, Financial Linkage, and Business Cycles in Latin America
( Magda Kandil ) 세종대학교 경제통합연구소(구 세종대학교 국제경제연구소) 2011 Journal of Economic Integration Vol.26 No.3
This paper studies co-movements in real output growth across countries of Latin America in the sample period 1970-2007. To detect the change over time, correlations in real growth are analyzed over two sub-samples: 1970-1986 and 1987-2007. Correlation coefficients detect co-movements in real growth across five regional groups: Andean, Caribbean, Central America, LAC7(Argentina, Brazil, Chile, Columbia, Mexico, Peru, Venezuela) and Mercosur. In addition, growth in each of the EU, the U.S., and Brazil are assumed to be common sources of co-movements in real output growth in Latin America. Business-cycle comovements within and across regions have varied over time. We also examine the impact of trade flows and financial linkage on co-movements in real growth within and across regions. The effect of trade flows is not conclusive. Business cycles may diverge, converge, or not vary significantly in response to trade flows across countries. More recently, co-movement in real growth appears to be tracking comovement in short-term interest rates across Latin America.
Magda Kandil 한국국제경제학회 2018 International Economic Journal Vol.32 No.4
Using data for a sample of advanced and developing countries, the paper studies variation in the effects of aggregate demand shocks on the macro-economy and distinguish between the effects of expansionary and contractionary shocks. The aim is to study the determinants and implications of cyclicality across representative countries in each group. The composite evidence points to high degree of cyclicality in many countries. The risk of cyclicality is higher in developing countries as high trend inflation limits the scope to mobilize growth and increases downward rigidity of prices. Policy priorities in developing countries should be focused on fighting inflation and improving the investment environment towards maximizing the return on investment and sustaining growth and capacity building. Policy priorities in advanced countries should be focused on mobilizing resources to ease capacity constraints and finance larger investment, with limited crowding out, to maximize the potential of real growth and combat inflationary pressures.