We have measured the traction forces generated by fibroblasts using a novel micromachined device that is capable of determining the subcellular forces generated by individual adhesive contacts. The front of migrating fibroblasts produced intermittent rearward forces whereas the tail produced larger forward directed forces. None of the forces were steady; they all had periodic fluctuations. The ...

Opinion on the management of stove-in chest appears to be converging on intermittent positive pressure respiration as a definitive line of treatment. Since Barrett (1960) summarised the emergency treatment as comprising tracheo-bronchial clearance, tracheostomy and intercostal drainage of pleural cavities with an underwater-seal, a more positive attitude to the treatment ofthese patients has de...

Abstract Intermittent computing is gaining traction in application domains such as Energy Harvesting Devices (EHDs) that experience arbitrary power failures during program execution. To make progress, programs require system support to checkpoint state and re-execute after failure by restoring the last saved state. This re-execution should be correct , i.e., simulated a continuously-powered We ...

background with increasing incidence of traumatic fractures, the use of orthopedic intervention such as traction has increased. inappropriate traction care may cause substantial morbidity and delay the patient rehabilitation. objectives this study was conducted to evaluate the quality of care for patients with traction in the orthopedic unit of kashan's shahid beheshti hospital, kashan, iran. p...

Aim: Case report describing a patient with resistant vitreomacular traction (VMT) treated with an intravitreal injection of a potentially safer, lower dose of ocriplasmin and with a residual intravitreal gas bubble from pneumatic vitreolysis. Case Report: An 88-year-old man with symptomatic vitreomacular traction (VMT) was observed for 4 weeks without spontaneous release. Pneumatic vitreolysis ...

Osgood-Schlatter disease is a condition that is caused by traction of the muscle-tendon unit at tibial tuberosity, which affects adolescents who exercise. The predisposing factors include rapid growth and physical activity, particularly running and jumping. Osgood- Schlatter disease causes intermittent pain, which can be aggravated by running, cycling and climbing stairs. We present the case of...

this paper concerns the design and analysis, of a ball type continuously variable transmission, (b-cvt). this b-cvt has a simple kinematic structure, and same as a toroidal cvt, transmits power by friction on the contact points between input and output discs, that are connected to each other by balls. after, a brief introduction of our b-cvt structure, the performance and traction efficiency of...

In this study we used transmural multipolar electrodes, sonomicrometers implanted within the left ventricular wall, and cardiac electrical stimulation techniques to examine the effect of transient mechanical posterior papillary muscle traction on local myocardial electrophysiologic characteristics. Nine open-chest dogs were atrially paced (cycle length 400 msec) followed by insertion of timed p...