Title	The Mediating Role of Network Service for Customer Satisfaction during COVID-19 Online Classes: Evidence from University Students
Author	Naveed Akhtar Qureshi and Raheela Haque
Citation	Vol. 23  No. 6  pp. 176-180
Keywords	.Perceived quality, Retailer service, Network service, Customer satisfaction during COVID-19.

Title	The Importance of Ethical Hacking Tools and Techniques in Software Development Life Cycle
Author	Syed Zain ul Hassan, Saleem Zubair Ahmad
Citation	Vol. 23  No. 6  pp. 169-175
Keywords	Ethical Hacking, Software Security, Software Quality Assurance, Software Testing, Ethical Hacking SDLC, Secure SDLC, Penetration testing.

Title	Modern Linguistics: Theoretical Aspects of the Development of Cognitive Semantics
Author	Nataliia Mushyrovska, Liudmyla Yursa, Oksana Neher, Iryna Pavliuk
Citation	Vol. 23  No. 6  pp. 162-168
Keywords	Linguistic Theory. Cognitive Semantics. Cognitive Linguistics. Concepts. Categorization. Frames. Semantic Fields. Prototypes. Metaphor.

Title	A Survey of Cybersecurity Vulnerabilities in Healthcare Systems
Author	Adwan Alownie Alanazi
Citation	Vol. 23  No. 6  pp. 155-161
Keywords	healthcare; cyber security; attack; malware; patient; threat; Access data; attacker; vulnerability; malicious program; approach; authentication; challenges; intruder; encryption