Background: The aim of the study was to investigate the use of quantitative ultrasound (QUS) in the young (20-25years) Saudi females to obtain stiffness index values related to bone quality. Method & Findings: In 101 young females recruited, QUS measurements were performed in the calcaneus region. 33% and 3% had osteopenia and osteoporosis in the calcaneus respectively, stiffness index values =...

[Purpose] This study examined the relationships between joint moment and the control of the vertical ground reaction force during walking in the elderly and young male and female individuals. [Subjects and Methods] Forty elderly people, 65 years old or older (20 males and 20 females), and 40 young people, 20 to 29 years old (20 males and 20 females), participated in this study. Joint moment and...

The concept of beauty is closely linked to gender in contemporary society; in this study, the concept of beauty was explored by the use of phenomenological techniques. For this purpose, an in-depth semi-structured interview was conducted among 35 young female students in Tehran. the sample of study was chosen by theoretical sampling model and the interviews were continued up to the point of  ga...

The authors tested 90 rhesus monkeys (Macaca mulatta) on a task of spatial memory, the spatial Delayed Recognition Span Test. The results showed that performance declined significantly with age, males had greater scores than females, and the rate of apparent decline with age was greater in males than in females. Both working and reference memory declined with age, but only working memory showed...

background: despite cultural and religious prohibitions against premarital heterosexual relationships and intimacy, some recent evidence suggests some rise in premarital heterosexual interactions and relationships among young people. on the other hand, although hiv in iran is a concentrated epidemic and mainly reported among high risk groups such as injecting drug users (idus), but there are ev...