spring summer 2010, vol.4, no.1 /74 medical laboratory journal severity of oxidative dna damage in gastric tissue of smoker and non-smoker patients with dyspepsia abstract background and objectives: cigarette smoking is associated with an increase in risk of peptic ulcer and gastro-intestinal cancer. toxic materials in smoke and tar have a significant role in production of carcinogenic complexe...

Background: Active memory is the search engine of the mind. Active memory is a cognitive function responsible for preserving instant information, its manipulation, and its use in thinking. This study aimed at investigating the effects of active memory practices on intelligence profiles in students with Specific Learning Disorder (SLD). Methods: This was a quasi-experimental study with a prete...

This article introduces a new image segmentation method that makes use of non-local comparisons between pairs of patches of features. A non-local energy is defined by summing the interactions between pairs of patches inside and outside the segmented domain. A maximum radius of interaction can be adapted to fit the amount of variation of the features inside and outside the region to segment. Thi...

Background: Anterior Cruciate Ligament) ACL (injury is the most prevalent knee ligament injury during exercise, with a frequency of 36.9 per 100000 individuals. The one characteristic of this injury is proprioception dysfunction. The current study investigated the knee proprioception in soccer players after ACL reconstruction. Methods: The study participants consisted of 20 elite male soccer p...

background: one of the causative factors in development of dental caries is microorganisms. two species of mutans streptococci including streptococcus mutans and streptococcus sobrinus are associated with dental caries in human beings. the aim of this study was to investigate the frequency of s. mutans and s. sobrinus in saliva of children with different caries activity and ability to form biof...