This is a survey of recent progress in several areas of combinatorial algebra. We consider combinatorial problems about free groups, polynomial algebras, free associative and Lie algebras. Our main idea is to study automorphisms and, more generally, homomorphisms of various algebraic systems by means of their action on \very small" sets of elements, as opposed to a traditional approach of study...

We investigated the mechanism(s) of action of two new putative antiepileptic drugs (AEDs), (S)-(-)-10-acetoxy-10,11-dihydro-5Hdibenz[b,f]azepine-5-carboxamide (BIA 2-093) and 10,11-dihydro-10-hydroxyimino-5H-dibenz[b,f]azepine-5-carboxamide (BIA 2-024), by comparing their effects on the release of endogenous glutamate in hippocampal synaptosomes, with those of carbamazepine (CBZ) and oxcarbazep...

We develop a theoretical model of individual labour supply in which the canonical model of the competitive labour market emerges as a special case. More generally, we are able to characterise labour supply behaviour when, in the absence of a continuum of jobs, firms are able to push workers on to lower indifference curves and off their labour supply curve. We show that in such circumstances wag...

Acute pancreatitis differ in pediatrics and adults. Drug-induced pancreatitis is one of the common causes of pancreatitis in children. This case-control study aimed to assess subclinical pancreatitis in patients with epilepsy treated with different drug regimens. Eighty known patients with epilepsy were enrolled. Forty patients were treated with monotherapy (group I) and 40 were treated with mu...