effect of controlled atmospheres (cas) at various concentrations of co2, n2 and o2 on the lethal times of tribolium castaneum and trogoderma granarium was investigated at 20 and 30 ºc. experiments were performed using a recirculatory multi-flask apparatus. the results revealed that, the shortest times (0.1, 0.3 and 0.9 day for adults, larvae and pupae, respectively) required to obtain 50% morta...

how to cite this article: kheradmand z, yarali b, zare a, pourpak z, shams s, ashrafi mr. comparison of serum zinc and copper levels in children and adolescents with intractable and controlled epilepsy. iran j child neurol. 2014; 8(3):49-54.   abstract objective trace elements such as zinc and copper have physiological effects on neuronal excitability that may play a role in the etiology of int...