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...

Introduction: It is not a routine to remove the parathyroid glands during thyroidectomy except when they are ischemic or have malignancy. In this study, the prevalence of parathyroid removal during total thyroidectomy was assessed. Methods: In this case-series study, 53 consecutive patients under total thyroidectomy in two general hospitals during 2013-2014 were enrolled. Serum parathormone va...

Introduction: Cutaneous leishmaniasis can lead to the loss of time, labor force, significant treatment costs and psychological problems. Also, cutaneous leishmaniasis is considered as an important health problem in Iran. This study was aimed to investigat the status of cutaneous leishmaniasis in Dashtestan district. Materials and Methods: This cross-sectional and descriptive-correlational...

In this article we propose models and a numerical method for pattern formation on evolving curved surfaces. We formulate reaction-diffusion equations on evolving surfaces using the material transport formula, surface gradients and diffusive conservation laws. The evolution of the surface is defined by a material surface velocity. The numerical method is based on the evolving surface finite elem...

The current study examined the effect of empathy on friendship quality in the context of dyadic same-sex friendships, and how such an effect might be mediated by interpersonal competence. A special version of the actor-partner interdependence model (APIM) was used to examine this hypothesis in 146 same-sex friend dyads in 10th grade. Results showed that empathy was positively related to intimac...