An adjustment to the speaker impedances enables higher output power to various speakers of different impedance. In a conventional amplifier which is designed for 4 ohm speaker impedance, the output power will drop sharply when using 6 or 8 ohms.
BACKGROUND AND AIMS: Hirschsprung disease is considered to be curable when performing definitive surgery. However, the postoperative bowel function is not always satisfactory. The long-term postoperative function of bowel evacuation and the quality of life of such patients are considered to be important.ACKGROUND AND AIMS: Hirschsprung disease is considered to be curable when performing definitive surgery. However, the postoperative bowel function is not always satisfactory. The long-term postoperative function of bowel evacuation and the quality of life of such patients are considered to be important.
Hirschsprung's disease is a birth defect that affects the nerve cells in the large intestine. These nerve cells control the muscles that normally push food and waste through the large intestine.In babies who have Hirschsprung's disease, the muscles in the wall of the large intestine don't relax, which prevents stool from passing.This can lead to trapped stool, infection, pain and swelling, and bowel problems. doctor may think that a child has the disease based on the child's symptoms and the results of a physical exam. Other tests may be done to confirm the diagnosis, such as: 1  A tissue sample from the rectum (biopsy) . 2  An abdominal X-ray. 3  An X-ray of the large intestine (barium enema) . 4  Anorectal manometry.