Navigating crisis: The effect of COVID-19 on sports entrepreneurs and service excellence in non-profit organizations.

Sports organizations have deemed sports entrepreneurship crucial in helping them overcome difficult times. The purpose of this research is to find out how the COVID-19 issue affected sports entrepreneurs and whether there are any variations in how non-profit sporting organizations anticipate entrepreneurs' effect on service excellence. This goal was achieved by comparing 145 sports organizations before and after the viral epidemic.

A Pathological Brain Detection System based on Extreme Learning Machine Optimized by Bat Algorithm.

Aim: It is beneficial to classify brain images as healthy or pathological automatically, because 3D brain images can generate so much information which is time consuming and tedious for manual analysis. Among various 3D brain imaging techniques, magnetic resonance (MR) imaging is the most suitable for brain, and it is now widely applied in hospitals, because it is helpful in the four ways of diagnosis, prognosis, pre-surgical, and postsurgical procedures. There are automatic detection methods; however they suffer from low accuracy.