Title	A Review of Concepts, Advantages and Pitfalls of Healthcare Applications in Blockchain Technology
Author	Aisha M. Al-asmari, Rahaf I. Aloufi and Youseef Alotaibi
Citation	Vol. 21  No. 5  pp. 199-210
Keywords	Blockchain; healthcare; concepts; properties; pitfalls; systematic literature review

Title	Challenges Experienced Use of Distance-Learning by High School Teachers Responses to Students with Depression
Author	Deyab A. Almaleki
Citation	Vol. 21  No. 5  pp. 192-198
Keywords	Teacher Experiences; Patterns of behavior; Depression; Psychological; High school

Title	Challenges Experienced Use of Distance-Learning by High School Teachers Responses to Students with Depression
Author	Deyab A. Almaleki
Citation	Vol. 21  No. 5  pp. 192-198
Keywords	Teacher Experiences; Patterns of behavior; Depression; Psychological; High school

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