Different companies sharing the same cloud infrastructure often prefer to run their virtual machines (VMs) in isolation, i.e., one VM per physical machine (PM) core, due to security and efficiency concerns. To accommodate load spikes, e.g., those caused by flash-crowds, each service is allocated more machines than necessary for its instantaneous load. However, flash-crowds of different hosted s...

background: acute appendicitis is the most common surgical emergency of the childhood. its diagnosis is really challenging. a constellation of through history taking, physical examination, radiographic investigations, and laboratory analysis should be used to balance the risk of delayed operative intervention against the removal of a normal appendix. here a case with misdiagnosis of acute appen...

bachground: paraquat (pq) intoxication manifests with pulmonary edema and fibrosis, heart failure, hepatic failure, and sometimes convulsions. in severe cases, the patients may die within the early hours. at best conditions, the conventional therapeutic methods can only save less than 50% of the victims of intentional pq intoxication. the aim of this study was to evaluate the outcome of new the...

Given its vapor pressure, toluene tends to partition to the atmosphere. Automobile emissions are the principal source of toluene in ambient air, with levels fluctuating in proportion to automobile traffic. Toluene can also be a common indoor contaminant, and indoor air concentrations are often several times higher than outside air. This is likely due to release of toluene from common household ...

stereologic methods are used to abtain quantitative information about 3-dimensional structures from histologic sections. the aim of the present study was using new and unbiased stereologic techniques to investigate changes in volume and number of glomeruli after chronic lead acetate intoxication both quantitatively and in 3-dimensional spaces.lead is one of the heavy metals that has adverse eff...