Diagnosis and Treatment of Irritable Bowel Syndrome: Clinical Recommendations of the Russian Gastroenterological Association and Association of Coloproctologists of Russia

Aim.Current clinical recommendations accentuate current methods for the diagnosis and treatment of irritable bowel syndrome (IBS).Key points.IBS is a functional bowel disorder manifested with recurrent, at least weekly, abdominal pain with the following attributes (any two leastwise): link to defecation, its frequency or stool shape.The symptoms ar

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Effects of screw end face structural parameters on polylactic acid flow field in meshing counter rotating twin screw extruder

Objective: To investigate the effect of the screw configuration on the polylactic acid flow field on the structural parameters of the screw on the end face of the screw in the meshing Undercounter Ice Makers counter rotating twin screw extruder.Methods: The theoretical model of the heterodirectional double-ended threaded element was established by

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