Title	Using Hierarchical Performance Modeling to Determine Bottleneck in Pattern Recognition in a Radar System
Author	Ahmed Alsheikhy and Muhannad Almutiry
Citation	Vol. 22  No. 3  pp. 292-302
Keywords	hierarchical performance modeling, bottlenecks, tomographic images, radar systems, single layer perceptron.

Title	Novel Two-Level Randomized Sector-based Routing to Maintain Source Location Privacy in WSN for IoT
Author	A. Jainulabudeen, M. Mohamed Surputheen
Citation	Vol. 22  No. 3  pp. 285-291
Keywords	RandomizedRouting; WSN; IoT; ACO; Simulated Annealing

Title	Academic Procrastination As A Challenge For Students’ Mental Health In The Context Of Distance Learning And The Virtual World During The Covid-19 Pandemic
Author	Olesia Stoliarchuk, Svitlana Khrypko, Dobrodum Olga, Olena Ishchuk, Olena Kokhanova, Olena Sorokina, Karina Salata
Citation	Vol. 22  No. 3  pp. 276-284
Keywords	procrastination, academic procrastination, mental health, students, distance learning, social media, virtual identity.

Title	Comparing U-Net convolutional network with mask R-CNN in Nuclei Segmentation
Author	Prof.Dr.E.A.Zanaty, Prof.Dr.Mahmoud M.Abdel-Aty, Khalid abdel-wahab ali
Citation	Vol. 22  No. 3  pp. 273-275
Keywords	U-Net, Mask R-CNN, Nuclei Segmentation.