We formulate and analyse a stochastic version of the Verhulst deterministic model for density-dependent growth of a single population. Three parameter regions with qualitatively different behaviours are identified. Explicit approximations of the quasi-stationary distribution and of the expected time to extinction are presented in each of these regions. The quasi-stationary distribution is appro...

Dr. Weiss has asked that we develop one-or twopage vignettes or case studies explaining specific areas of psychological research that pertain to various aspects of disaster preparedness and recovery. These need to be written for the non-psychologists and they should explain why this research may help inform policy. These vignettes should also provide a summary of data and a brief history of the...

My book, Ignorance of Language (2006a), challenges the received Chomskian “psychological conception” of grammars and proposes a “linguistic conception” according to which a grammar is a theory of a representational system. My response to Guy Longworth rejects his claim in “Ignorance of Linguistics” (2009) that there is “mutual determination” between linguistic and psychological facts with the r...

Background: The impact of religion on psychological adjustment of infertile women has not received adequate attention in the literature. Few studies which have been conducted in this area, have shown that some infertile women with strong religious beliefs may achieve relief and comfort through prayer and viewing infertility as part of a divine plan, whereas others may interpret infertility as p...

exposure to stress leads to physiological changes called “stress response” which are the result of the changes in the adrenomedullary hormone system, hypothalamus-pituitary-adrenal (hpa) and sympathetic nervous system (sns) activity. in the present study, the effects of chronic physical and psychological stress and also the role of sympathetic system effects in stress on ischemia/reperfusion (i...