In order to determine the prevalence rate of dental malocclusion in permanent dentition a total of 1000 students(500 girls ans 500 boys) between the ages of 12-16 years,living in the city of Kerman were selected randomly from student population of 36670.their characteristics that were examined included:profile,numbrt of teeth present in month,reletionship brtween molar and caning teeth(accordin...

New US Department of Agriculture regulations have altered what foods schools offer for lunch, but schools cannot require students to eat specific foods. An intervention using the behavioral science principle known as "libertarian paternalism" led junior-senior high school students to eat more fruits and vegetables by making these foods more convenient, attractive, and normative.

Accelerated urbanization and rising immigration to the big cities in China has resulted in education policies that produce disparate treatment of immigrant and non-immigrant students. The two types of students frequently wind up in different types of junior high schools. However, there is little research on whether disparities exist between students in public and private schools with regard to ...