Holm's (1979) step-down multiple-testing procedure (MTP) is appealing for its flexibility, transparency, and general validity, but the derivation of corresponding simultaneous confidence regions has remained an unsolved problem. This article provides such confidence regions. In fact, simultanenous confidence regions are provided for any MTP in the class of short-cut consonant closed-testing pro...

BACKGROUND Unlike most anesthetics, ketamine racemate (S, R (+/-)-ketamine) induces heterogenous changes in cerebral metabolism. S, R (+/-)-ketamine is an equimolar mixture of two enantiomers, S (+)-ketamine and R (-)-ketamine, which differ in affinity for neuroreceptors and pharmacologic activities. This study investigated comparatively the effects of ketamine racemate and enantiomers on cereb...

one of the new areas in the field of studying the country's development planning is border regions. although from past to present different aspects of the problems related to these regions have been studied, but spatial planning of border regions not only its position has not been clarified in the planning system of the country's development but also its dimensions and characteristics...