We characterize the squares occurring in infinite overlap-free binary words and construct various α power-free binary words containing infinitely many overlaps.

objective 1-3% of the population suffer from epilepsy. up to 30% of them develop refractory epilepsy and their seizures occur more than once per month despite receiving at least 2 first line antiepileptic drugs. in  this group, more efficacious antiepileptics are needed. this study was undertaken to evaluate the efficacy and safety of oxcarbazepine as an adjunction therapy in children with refr...

purpose : to determine add power (ap) and amplitude of accommodation (aa) in a sample of iranian population and its relationship with refractive errors methods : this cross-sectional study enrolled people of 35-70 years old by simple random sampling. exclusion criteria were myopia or hyperopia over 6 diopter (d) and astigmatism more than 0.75 d. those with a history of eye disorders and taking ...