Prediction and Experimental Evaluation of Mechanical Properties of SiC-Reinforced Ti-4.25Al-2V Matrix Composites Produced by Laser Direct Energy Deposition.

An important direction in the development of additive technologies is associated with the addition of ceramic particles (oxide, carbide, boride, and nitride ceramics) to metal powders. The prediction of the physical and mechanical characteristics of SiC-particle-reinforced composite materials (PRCMs) in comparison with experimental results was studied. A near-α Ti-4.

[Fistula-in-ano treatment a modo Jonesko using brace].

References to fistula-in-ano date to antiquity. Hippocrates made reference to surgical therapy for fistulous disease. The English surgeon John Arderne described fistulotomy and seton use in 1376.

[Set for hermetization during transportation and draining of the pleural cavity].

In a situation of continuously growing road-and-traffic traumatism serious chest traumas with the presence of penetrating wounds are not a rare case. The correct transportation of the injured requires hermetization of the open pneumothorax with ensured draining of the pleural cavity in order to eliminate the possibility of the appearance of a valve pneumothorax. With the means, existing up to now, it is difficult to achieve hermetization during transportation and draining of the pleural cavity at the same time.

[Electrical stimulation for rapid assessment of extremity tissues vitality in critical ischemia].

Introduction: In cases of trauma of the extremities, the development of critical tissue ischemia is a frequent complication, requiring surgical intervention with possible amputation. The exact duration of blood supply loss is often difficult to evaluate. Therefore, an easily applicable simple and rapid method for tissues vitality assessment would be of appreciable importance.

[Two methods of plastic reconstruction of extensive defects of the chest wall (experimental study)].

The authors examine results from the experimental using two new methods for surgical reconstruction of broad defects of the chest wall. Our study was applied to 18 dogs separated in two series. In the first group of 8 dogs we used bone-muscle lambo for plastic reconstruction formed from the scapula and m.