Clicks occur abundantly in the languages of southern Africa, but are not found anywhere else. This is unexpected since the clicks seem to be both auditorily salient and easy to produce. This paper suggests that the reason for the areal skewness of clicks lies in the African phonetictypological environment rather than in production or perception constraints. In particular, clicks are limited to ...

this study was designed to assess the frequency of exclusive breastfeeding in two health centers of shahid beheshti university of medical sciences in khak sefid, tehran, iran. a total of 175 mothers, referred for the third dose of their infants' dpt vaccination program participated in the study by completing a questionnaire regarding characteristics of their pregnancy, delivery and exclusive br...

The Lakota (Sioux) sacred clowns (heyoka) of traditional religious practice offer a glimpse of the clown phenomenon found in many of the world's indigenous traditions. By illustrating the unified Lakota and Western conceptions of humor, the logic of how particular entities of the natural environment are understood as relatives according to Lakota thought is brought to light in hopes of introduc...

background: febrile convulsion (fc) is one of the most common emergency diseases in childhood that has an incidence of3-4%. the most common causes offc are gastroenteritis and respiratory infections. we know that exclusive breast-feeding in the first 6 months oflife decreases this disorder. methods: in this study we evaluated the frequency of exclusive breast-feeding on children who had fc and ...