Low-Temperature Superplasticity of Ultrafine-Grained Aluminum Alloys: Recent Discoveries and Innovative Potential.

The last two decades have witnessed significant progress in the development of severe plastic deformation techniques to produce ultrafine-grained materials with new and superior properties. This review examines works and achievements related to the low-temperature superplasticity of ultrafine-grained aluminum alloys. The examples are provided of the possibility to observe low-temperature superplasticity in aluminum alloys at temperatures less than 0.

[Contractile activity and sensitivity of smooth muscle cells of the small intestine to agonists in acute ileus].

The impact of acute ileus on the contractility and sensitivity of small intestinal smooth muscle cells to acetylcholine and histamine, as well as possible recovery of smooth muscle cells after removal of 3-hour acute ileus were studied. The contractility of small intestinal smooth muscle cells and their sensitivity to the agonists decreased in proportion to the duration of acute ileus only in the strangulated portion of the bowel. Removal of 3-hour acute ileus resulted in a stepwise recovery of the contractility and sensitivity of small intestinal smooth muscle cells to the agonists in the adducting, strangulated, and abducting portions.

[Early postoperative adhesion ileus].

Under analysis were results of surgical treatment of 4908 patients with diseases of organs of the abdominal cavity obtained during the period from 1985 till 1990. In 57 patients relaparotomy was caused by early postoperative commissural ileus. Late diagnosis of the main disease, technical and tactical errors during operations and at the early postoperative period were responsible for the appearance of the commissural ileus.

[The use of laparostomy in treating diffuse suppurative peritonitis].

The results of surgical intervention with the use of laparostomy in 29 patients with diffuse purulent peritonitis at the terminal stage are presented. In 11 cases, laparostomy was performed during the first operation, in 18--for postoperative peritonitis. At the time of operations, laser radiation, gastrointestinal intubation were widely used.