Title	Analysis of Cloud Security Vulnerabilities and Countermeasures
Author	Hyun-Min Son, Nak-Keun Joo, Hyun-Taek Choi, Hyun-Cheol Lee
Citation	Vol. 19  No. 2  pp. 200-206
Keywords	Attack, Cloud Compyting, Security, Threats, Vulnerability.

Title	Security Challenges and Limitations in IoT Environments
Author	Suha Ibrahim Al-Sharekh, Khalil H. A. Al-Shqeerat
Citation	Vol. 19  No. 2  pp. 193-199
Keywords	Internet of Things, Security, Challenges, Limitations, Survey.

Title	A Review on Synchronization and Concurrency Control Techniques of Distributed Databases
Author	Sajawal ur Rehman Khan, Muhammad Sheraz Arshad Malik, Muhammad Waleed Ashraf, Ayesha Saif Ullah, Ikraam Asghar, Nafeesa Razzzaq
Citation	Vol. 19  No. 2  pp. 187-192
Keywords	Distributed Database, Synchronization, Concurrency Control, Clock synchronization, Locking, Timestamp.

Title	IoT in Health-care: Recent Advances in the Development of Smart Cyber-Physical Ubiquitous Environments
Author	Abdulaziz A. Albesher
Citation	Vol. 19  No. 2  pp. 181-186
Keywords	Ubiquitous computing, Internet of Things, Internet of Healthcare Things, pervasive networks, e-health