Given that Mandarin is a tone language and English is not, the present study investigated the perception of Mandarin tones in young school-aged children with or without tone language exposure. Mandarin Monolingual (MM), English-Mandarin Bilingual (EMB) and English Monolingual (EM) children aged 6 to 8 years participated in tone identification and discrimination tasks. Tone identification and di...

INTRODUCTION Considering the scarcity of skilled workers in the health sector, the appropriate distribution of human resources in this sector is very important for improving people's health. Having information about the degree of equality in the distribution of health human resources and their time trends is necessary for better planning and efficient use of these resources. The aim of this stu...

background: the aim of this study was to assess the effects of road deicing salt on the quality of the ground water resources in hamadan province during winter season. methods: water samples were taken monthly from thirty wells located around the hamadan-asadabad highway. the quality of well water was examined by measuring amount of sodium, chloride, total hardness, total dissolved solid, elect...

BACKGROUND Intestinal parasitic infections are among the most common infections and health problems worldwide. Due to the lack of epidemiologic information of such infections, the prevalence of, and the risk factors for, enteric parasites were investigated in residents of Roudehen, Tehran Province, Iran. METHODS In this cross-sectional study, 561 triple fecal samples were collected through a ...