The invention relates to a method of treating at least one symptom of irritable bowel syndrome selected from the group consisting of: abnormal stool frequency, abnormal stool form, abnormal stool passage, passage of mucus and feeling of abdominal distension in a subject in need thereof. The coded data may be printed somewhere appropriate on the physical item. When the value of the vibration signals falls below a trigger level, a work table direction of motion is reversed. A scatter sensor is directed towards the absorbing coating, and an integrating detector is configured to detect radiation directly from the entire Lambertian surface. The support structure thus gains significant strength as the number of folds increase.