Title	The Influence of Factors on the Level of Digitalization of World Economies
Author	Olha Pyroh, Kateryna Kalachenkova, Hanna Chmil
Citation	Vol. 21  No. 5  pp. 183-191
Keywords	Digitalization, World Economy, DiGiX, IMD Digital Competitiveness Rating, DESI, Digital Technologies, Digital Economy

Title	Experimental validation of a dynamic analysis and fuzzy logic controller of greenhouse air temperature
Author	Imen Haj Hamad, Amine Chouchaine, and Hajer Bouzaouache
Citation	Vol. 21  No. 5  pp. 175-182
Keywords	Greenhouse, fuzzy logic controller, temperature, MATLAB/Simulink environment, Experimental validation

Title	Experimental validation of a dynamic analysis and fuzzy logic controller of greenhouse air temperature
Author	Imen Haj Hamad, Amine Chouchaine, and Hajer Bouzaouache
Citation	Vol. 21  No. 5  pp. 175-182
Keywords	Greenhouse, fuzzy logic controller, temperature, MATLAB/Simulink environment, Experimental validation

Title	Security Threat Identification and Prevention among Secondary Users in Cognitive Radio Networks
Author	Reshma C R. and Arun kumar B. R
Citation	Vol. 21  No. 5  pp. 168-174
Keywords	malicious user, security, attacks, threats, cryptography