This paper deals with the amount of disorder that is left in a permutation after one of its elements has been selected with quickselect with or without median-of-three pivoting. Five measures of disorder are considered: inversions, cycles of length less than or equal to some m, cycles of any length, expected cycle length, and the distance to the identity permutation. “Grand averages” for each m...

In their editorial, Speed and Mannion identify two main challenges “the rise of post-truth populism” poses for health policy: the populist threat to inclusive healthcare policies, and the populist threat to well-designed health policies that draw on professional expertise and research evidence. This short comment suggests some conceptual clarifications that might help in thinking through more p...

Introduction: Tonsillectomy is one of the most common surgeries in the world and the most common problem is post-tonsillectomy pain and bleeding. The relief of postoperative pain helps increase early food intake and prevent secondary dehydration. One method for relieving pain is peritonsillar injection of epinephrine along with an anesthetic, which has been shown to produce variable results in ...

introduction: post dural puncture headache is still a common complication among young women undergone cesarean section, although use of small size spinal needles reduced its prevalence. several methods have been suggested for prevention and treatment of this side effect; such as complete bed rest, hydration, non-opioid analgesics, caffeine, codeine, which none of them proved to be totally effec...

introduction and aims: tt virus (ttv) is a dna virus and is proposed as a potential cause of non-a to e hepatitis. we aimed to investigate, for the first time, the prevalence of ttv in iranian healthy blood donors. materials and methods: three hundred and twelve healthy iranian blood donors were randomly selected and tested for ttv dna by the seminested polymerase chain reaction method. serum a...

conclusions post-vaccination encephalomyelitis is a very rare side effect of mencevax acwy. introduction post-vaccination encephalomyelitis is an inflammatory disorder of the central nervous system. it is triggered by certain vaccines. the diagnosis of post-vaccination encephalomyelitis depends on the close temporal relationship between vaccination and clinical presentation. case presentation w...