PURPOSE Equivalent Square (ES) enables the calculation of many radiation quantities for rectangular treatment fields, based only on measurements from square fields. While it is widely applied in radiotherapy, its accuracy, especially for extremely elongated fields, still leaves room for improvement. In this study, we introduce a novel explicit ES formula based on Weighted Power Mean (WPM) funct...

The purpose of the present study was to investigate cumulative heroin effects on brain functioning by studying relationships among electroencephalography (EEG) spectral power and mean frequencies and heroin abuse history. Eyes-closed resting EEG data were collected from the 19 monopolar electrode sites in 33 heroin abusers and 13 age-matched healthy volunteers. The mean age of the patients was ...

Multilayer graphs encode different kind of in-teractions between the same set of entities.When one wants to cluster such a multilayergraph, the natural question arises how oneshould merge the information from differentlayers. We introduce in this paper a one-parameter family of matrix power means formerging the Laplacians from different layersand analyze it in ex...

I certify that the work submitted is my own and that any material derived or quoted from the published or unpublished work of other persons has been duly acknowledged (ref. UPR AS/C/6.1, Appendix I, Section 2 – section on cheating and plagiarism) Abstract Emerging wireless systems envisage properties of; power and bandwidth efficiency, low cost transceivers (to encourage more users) and increas...

In this paper optimal inequalities between Seiffert’s mean and power means are derived using a simple monotony property. Mathematics subject classification (2000): 26E60, 26D05.