We investigate the impact of cyclic competition on pattern formation in the rock-paper-scissors game. By separately considering random and prepared initial conditions, we observe a critical influence of the competition rate p on the stability of spiral waves and on the emergence of biodiversity. In particular, while increasing values of p promote biodiversity, they may act detrimentally on spat...

We present a comprehensive study of pattern formation in single-field relaxational systems with field-dependent coefficients. A modulated mean-field theory leads to a form amenable to analysis via the geometric architecture developed in our earlier work for systems that exhibit phase transitions between global steady states [Phys. Rev. E 69, 011102 (2004)]. We demonstrate that the phase diagram...

A brief history of earlier meetings on relativistic theories atoms, molecules and solids since 1969 is told. The REHE (Relativistic Effects in Heavy-Element Chemistry Physics) range from REHE-1 1993 to the REHE-13 at Assisi 2022. They were started during ESF (European Science Foundation) programme 1993–1997 continued as an independent series after it.

the first part of this article deals with isi’s journal selection policy. describing the importance of evaluation process as well as determining the status of iran in knowledge production in the areas of arts, humanities, social sciences, sciences, etc. and comparing it with the articles published throughout the world between 1993-2000 are the next two parts of this article. the results indicat...

BACKGROUND We assessed the incidence of infants born small-for-gestational-age (SGA) and large-for-gestational-age (LGA) in an Italian cohort over 20 years (1993-2013). Furthermore, we investigated maternal factors associated with SGA and LGA births. METHODS A retrospective review of obstetric records was performed on infants born in Chieti (Italy) covering every 5(th) year over a 20-year per...