it is important for people to improve cognitive and motor performance. the purpouse of this study was to investigate the effect of running on treadmill in spatial memory and learning and motor performance. 24 albino-wistar healthy male rats were randomly divided into control and activity groups. activity group ran 7 days on treadmill (speed 22m/min 30 minutes a day). after the end of activity p...

The management of urban sprawl is fundamental to achieving sustainable urban development. Monitoring urban sprawl is, however, challenging. This study proposes the use of two spatial statistics, namely global Moran and local Moran to indentify statistically significant urban sprawl hot and cold spots. The findings reveal that the Moran indexes are sensitive to the distance band spatial weight m...

A signed graph is a whose edges are labeled either positive or negative. Corresponding to the two distance matrices defined for graphs, we define laplacian matrices. We characterize balance in graphs using these and find spectra of some classes unbalanced graphs.

(a) Mathematical modularization applies to a well-defined large class of fast transforms, which we refer to as FA4, standing for Fast Approximate Analytic-Algebraic Algorithms. (b) The decompositions of FA4 transform matrices are of a generic form, based on three mathematical properties of the transform kernels: invariance under translation, decay with spatial distance, and periodicity. (c) Mat...