Title	Convergence Analysis of Real-World Noisy Images in Blind Denoising
Author	Gulsher Ali, Junaid Ahmed, Bilal Tirmizi, Sharjeel Afridi
Citation	Vol. 19  No. 2  pp. 176-180
Keywords	Blind denoising real-world noisy images correlation based sparse representation.

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

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	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.