For any simple graph G on n vertices, the (positive semi-de nite) minimum rank of G is de ned to be the smallest possible rank among all (positive semi-de nite) real symmetric n × n matrices whose entry in position (i; ...

This research proposes a new distribution for non-zero count data, namely the zero-truncated Poisson-weighted exponential distribution (ZTPWE). The Poisson- weighted exponential distribution(P-WE) has been proved to be ...

It is critical to identify and use appropriate ecological indicators to detect, monitor and assess the impacts of environmental stressors on natural systems in order to effectively legislate, protect and restore ecosystems. ...