By combining expressions A.1 and A.2 it becomes clear that the variance ratio is equal to 1 when the sum of population covariances is zero (population dynamics are independent), whereas values greater (less) than 1 indicate positive (negative) covariances and thus synchronous (compensatory) dynamics amongst populations. The variance ratio reflects the cumulative population dynamics rather than ...

Parathyroid carcinoma is an uncommon cause of PTHdependent hypercalcemia. The collective published experience with this rare neoplasm has provided a distinctive clinical profile that differs in a number of respects from that of benign primary hyperparathyroidism (1–3). The distinguishing features of parathyroid carcinoma assume even greater prominence when viewed within the current context of p...

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 ...

Hepatitis C virus (HCV) replication is dependent on a liver-specific microRNA (miRNA), miR-122. A recent clinical trial reported that transient inhibition of miR-122 reduced viral titres in HCV-infected patients. Here we set out to better understand how miR-122 inhibition influences HCV replication over time. Unexpectedly, we observed the emergence of an HCV variant that is resistant to miR-122...

The kinetics of crystalloid solutions in humans have not been adequately described previously. Therefore, we measured blood haemoglobin concentration during and for 120 min after i.v. infusion of 25 ml kg-1 of Ringer's acetate solution over 15, 30, 45 and 80 min, and 12.5 ml kg-1 over 30 min in six adult female volunteers. The dilution-time profiles were analysed according to a new kinetic mode...

The acoustical attenuation of five different hearing protectors were investigated using real impulses and miniature microphone technique in field conditions from a 23 mm antiaircraft cannon, from 122 mm howitzer and from an explosion of 1 kg of TNT. The measurements were carried out using voluntary military officers exposed to similar impulses in their work. The combination of earmuffs and earp...