The migration of a patch of prey through a ®eld of relatively stationary predators is a situation that occurs frequently in nature. Making quantitative predictions concerning such phenomena may be dicult, however, because factors such as the number of the prey in the patch, the spatial length and velocity of the patch, and the feeding rate and satiation of the predators all interact in a compl...

Background: Birthmarks are common reasons for parents’ concern.Some of them may need further investigation to find out theunderlying systemic disorders or their potential for malignanttransformation. The purpose of this study was to determine thefrequency of vascular and pigmented birthmarks in infants fromthe Northeast of Iran.Method: This descriptive study was conducted on 1000 healthyinfants...

Many governments block their citizens’ access to much of the Internet. Simple workarounds are unreliable; censors quickly discover and patch them. Previously proposed robust approaches either have non-trivial obstacles to deployment, or rely on lowperformance covert channels that cannot support typical Internet usage such as streaming video. We present Salmon, an incrementally deployable system...

background: amylin and salmon calcitonin belong to the calcitonin family of peptides and have high affinity binding sites in the rat spinal cord. the aim of this study was to characterize receptors for amylin and salmon calcitonin functionally in the spinal cord of rats. we assessed the expression of c-fos in response to intraplantar formalin in the lumbar regions of the spinal cord in consciou...

a number of innocent rashes occurs in neonates. they are usually transient and self limited and thus require no therapy but early recognition is important to distinguish these lesions from more serious disorders. in this study, our purpose was to determine the frequency of birthmarks in iranian neonates. the presence of various types of birthmarks was determined in 503 iranian neonates under 72...