The research field on passive intervention strategies in schools is broad, complex, and fragmented due to the great diversity of disciplines, climates, approaches. This article applies scientific mapping software SciMAT analyse trends developments from 1982 2020 537 papers identifies best available 24 42 countries. results show that, early years, focused natural ventilation, especially arid cli...

in this work‎, ‎we formulate chatterjea contractions using graphs in metric spaces endowed with a graph ‎‎and‏ ‎‎‎‎investigate ‎the ‎existence‎ ‎of ‎fixed ‎points ‎for such mappings ‎under two different hypotheses‎. we also discuss the uniqueness of the fixed point. the given result is a generalization of chatterjea's fixed point theorem from metric spaces to metric spaces endowed with a graph.