background : the liver which is a vascular organ can easily be lacerated or crushed, depending on the severity of trauma. case report: a 55 year-old lady who fell down was taken to a hospital within one hour and died two hours post-trauma. an autopsy revealed rupture a large sub capsular vascular lesion situated on the right lobe of liver with hemoperitoneum. there was a deep contusion on the a...

OBJECTIVE During tracheal resection with primary anastomosis, cartilaginous reinforcing sutures may be placed outside of the primary anastomosis with the goal of preventing early dehiscence. The direct effect of such reinforcing sutures on anastomotic strength has not been previously investigated. The goal of this study was to determine if the addition of cartilaginous reinforcing sutures adds ...

Knowing how epithelial cells regulate cell-matrix and cell-cell adhesions is essential to understand key events in morphogenesis as well as pathological events such as metastasis. During epithelial cell scattering, epithelial cell islands rupture their cell-cell contacts and migrate away as single cells on the extracellular matrix (ECM) within hours of growth factor stimulation, even as adhesio...

In dynamic force spectroscopy, single (bio-)molecular bonds are actively broken to assess their range and strength. At low loading rates, the experimentally measured statistical distributions of rupture forces can be analysed using Kramers' theory of spontaneous unbinding. The essentially deterministic unbinding events induced by the extreme forces employed to speed up full-scale molecular simu...

Isometric weight training is a well-recognised technique used by fitness trainers to increase muscle strength. We report a case of a flexor digitorum superficialis muscle belly rupture that occurred during this form of muscle training. Rupture of the belly of the forearm flexor muscles is rare. When the muscle undergoes tractional force in isometric weight training, there is a potential for it ...

In this research, two new methods that improve the drawing depth of deep-drawing processes have been introduced. In the first technique, by creating ridges on the punch surface, the stress concentration is decreased on the blank near the punch edge, in turn increasing the drawing depth. The second method is based on the principle of reducing resistant force in the flange area between the die, t...

A simple, practical, and model-free method is presented, by which kinetic data can be extracted from variable loading-rate single molecule dynamic force spectroscopy experiments. The constant sampling rate of digital acquisition facilitates the sorting of multiple force curves into histograms that reflect the collective force-time history of the bonds of interest. Combining the force-time histo...