The variation trends and characteristics of polar mesospheric clouds (PMCs) are important for studying the evolution of atmospheric systems and understanding various atmospheric dynamic processes.Through observation and analysis of PMCs, we can gain a comprehensive understanding of the mechanisms driving atmospheric processes, providing a scientifi
Abstract This paper investigates the asymmetric effect of exchange rate changes on cross-border trade in Nigeria.The investigation becomes necessary because several studies have reported insignificant results in attempting to establish a link between these two variables using symmetric specification.Whereas, there are strong evidence of nonlinear m
Exam proctoring is a hectic task i.e., the monitoring of students’ activities becomes difficult for supervisors in the examination rooms.It is a costly approach that requires much labor.Also, it is a difficult task for supervisors to keep an eye on all students at a time.Automatic exam activities recognition is therefore necessitating and a