Design of a method for in vitro studies of polymer adhesion.

In this paper we describe a modified intestinal perfusion technique for investigation of bioadhesion phenomena. This technique is an in vitro method with well standardized experimental conditions which measures the intestinal intraluminal pressure and its oscillation. This also allows the vitality of the intestinal segment used in the experimental to be checked.

Reflex and chemical responses of tracheal submucosal glands in piglets.

In adult animals, airway fluid secretion is enhanced reflexly via central nervous system pathways, and locally by mediators such as substance P. To evaluate the role of maturation on these regulatory mechanisms, we compared the effects of reflex stimulation and intravenous substance P administration on airway secretion in anesthetized, paralyzed and artificially ventilated piglets, 9 to 22 days of age, and older piglets all aged 10 weeks. Airway secretion was monitored by counting the hillocks appearing in the upper trachea in an exposed field of tracheal epithelium (1.

[Gunshot injuries of the gastroduodenal region].

The injuries of the abdomen and in the region of duodenum sustained through shooting, present a delicate and difficult problem in treatment. During the years 1970/74, 375 cases were treated in our clinic, out of which 38 patients were with abdominal injuries while 12 cases were with gastro-duodenal injuries all derived through shooting. Special delicate problems represent the treatment of pancreas injuries if only the tissue of the pancreas is only made with simple stitch.

[Peacetime shooting injuries of the long bones].

1. In our short reference we have shown the complete number of injuries sustained through shooting and we have indicated their enormous frequencies which can be regarded to be equal to those injuries in traffic communication. 2.