Alzheimer's disease (AD) is a progressive disease that destroys memory and other important mental activities. Scientists have found that remaining relatively active can lead to better brain activities in those at risk of developing AD. In some Meta-analyses of prospective investigations, a significantly reduced risk of dementia related to midlife exercise have been proven. Most studies have bee...

background: increasing of chronic patients who need permanent support andstaff who are daily exposed to psychological stress need to hospitals that note to health promotion programs. healthpromoting hospitals (hph)was expressed by the world health organization in the 1990s. so a large numberof hospitals in the world have implemented health promotion programs. but hospitalsin iran not implement ...

Introduction: In electron beam treatment, because of the non-point electron beam source, inverse-square law cannot be applied for dosimetry in different treatment intervals. Therefore, providing source-surface distance (SSD) charts in all clinics is of paramount importance. This study aimed to determine the effective SSD for various electron beam energies and field sizes and to...

Blocking is an effective method for reducing systematic variations and increasing the precision of effect estimation when the experimental units are not homogeneous. Clear two-factor interactions (2fi’s) can be estimated under the weak assumption that interactions involving three or more factors can be ignored. Some theoretical results on the existence of clear 2fi’s in 2 IV : 2 l designs are o...