INTRODUCTION Unlike Europeans’ pastime of mushroom hunting or lactovegetarian's craze for "organic " food (1), in Himalayan developing nations like Nepal, either poor man's delicacy or hunger, often drives people living in hills to forage for wild mushrooms. In Nepal, unnumbered and medically unpublished small epidemics of mushroom poisoning take a heavy death toll annually. The present case de...

Parasitism generally imposes costs on victims, yet many victims appear to tolerate their parasites. We suggest that in some cases this may be because parasites provide victims with mitigating benefits, paradoxically giving rise to selection for advertisement rather than concealment by parasites. We investigate this possibility using the interaction between an avian kleptoparasite, the fork-tail...

Coke formation on n-butene cracking catalyst is the main reason for reducing of its lifetime. To study effects acidity and textural properties coke process, a series HY zeolite-type catalysts were prepared by ammonium hexafluorosilicate treatment (AHFS). NH3-TPD Py-IR-TPD used to systematically change law zeolite acidity. It was found that with increase AHFS concentration, acid density decrease...