to evaluate the effect of gamma rays on the seeds and amounts of nitrogen on growth and yield of chamomile (chamomilla recutita synonym matricaria chamomilla), a factorial experiment was conducted based on randomized complete block design with three replications at the research farm of agriculture college of shahid-beheshti.-urmia in 2010. treatments were gamma rays from cobalt-60 on chamomile ...

background: hydrogen peroxide (h2o2), produced by gamma ray irradiation to watery solution, was used as an analytical parameter for dosimetry of cobalt-60 (60co) radiation. materials and methods: detection of the produced h2o2 was carried out using two methods: an amperometric biosensor fabricated by immobilization of anthraquinone 2-carboxylic acid modified horseradish peroxidase on glassy car...

background: gray`s reinforcement sensitivity theory (rst) presupposes individual differences in the sensitivity of basic brain systems that respond to punishing and reinforcing stimuli. these differences are thought to underlie the personality dimensions of anxiety and impulsivity, and to have relevance for psychopathology. the present study aims at studying the relationship between behavioural...

introduction: orexin-a and b (hypocretin 1 and 2) are neuropeptides that are mostly expressed in the posterior and lateral hypothalamus (lh). intracisternal (icv) and intratechal (it) injections of orexin-a (hypocretin-1) have been shown to elicit analgesic responses in formalin test. however, the locations of central sites that may mediate these effects have not been clearly elucidated. orexin...