نتایج جستجو برای: s retraction syndrome
تعداد نتایج: 1307597 فیلتر نتایج به سال:
Device implantations may be challenging in patients with venous abnormalities. The most common congenital variation, frequently associated with other congenital abnormalities, is a persistent left superior vena cava (PLSVC), and successful atrial and ventricular lead implantation via a PLSVC have both been reported [1]. “Ratchet syndrome” has also been reported as a rare complication after a ne...
A quantitative study of hindlimb kinematics during terrestrial locomotion in a non-specialized salamander was undertaken to allow comparisons with limb movements in other groups of tetrapods. Five Dicamptodon tenebrosus were videotaped at 200 fields s-1 walking on a treadmill. Coordinates of marker points on the salamander's midline, pelvic girdle and left hindlimb were digitized through at lea...
The study aimed to investigate the effect of speed and incline on EMG activity in the brachiocephalicus muscle and the long and lateral heads of the triceps brachii muscle. Six horses were exercised on a treadmill at walk (1.7m s), trot (4.0m s) and right lead canter (7.2m s) on a 0 and 8% incline. Kinematics (120Hz) and electromyography (EMG) (2000Hz) data were collected simultaneously from th...
A recently developed, rigid-panel deployable antenna has shown, unexpectedly, a kind of multi-path behaviour. A physical model of the antenna deploys automatically without problems but, during retraction, it attempts to follow an alternative path and gradually locks up. Manual intervention is necessary to take the model back to its nominal retraction path, and this successfully completes the re...
Congenital cranial dysinnervation disorders are a group of diseases caused by abnormal development of cranial nerve nuclei or their axonal connections, resulting in aberrant innervation of the ocular and facial musculature. Its diagnosis could be facilitated by the development of high resolution thin-section magnetic resonance imaging. The purpose of this review is to describe the method to vis...
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