Title	Big Data Security and Privacy: A Taxonomy with Some HPC and Blockchain Perspectives
Author	Khalil Alsulbi, Maher Khemakhem, Abdullah Basuhail , Fathy Eassa, Kamal Mansur Jambi and Khalid Almarhabi
Citation	Vol. 21  No. 7  pp. 43-55
Keywords	Big Data, Big Data security, Big Data privacy, cloud storage, high-performance computing (HPC), Blockchain.

Title	Big Data Security and Privacy: A Taxonomy with Some HPC and Blockchain Perspectives
Author	Khalil Alsulbi, Maher Khemakhem, Abdullah Basuhail , Fathy Eassa, Kamal Mansur Jambi and Khalid Almarhabi
Citation	Vol. 21  No. 7  pp. 43-55
Keywords	Big Data, Big Data security, Big Data privacy, cloud storage, high-performance computing (HPC), Blockchain.

Title	The Economic Security System in the Conditions of the Powers Transformation
Author	Olena Arefieva, Svitlana Tulchynska, Olha Popelo, Serhii Arefiev, Tetiana Tkachenko
Citation	Vol. 21  No. 7  pp. 35-42
Keywords	economic security system, powers transformation, region, structural parameters, PEST-analysis, monitoring.

Title	The Economic Security System in the Conditions of the Powers Transformation
Author	Olena Arefieva, Svitlana Tulchynska, Olha Popelo, Serhii Arefiev, Tetiana Tkachenko
Citation	Vol. 21  No. 7  pp. 35-42
Keywords	economic security system, powers transformation, region, structural parameters, PEST-analysis, monitoring.