The paper proposes a model of a fatigue device for testing dedicated to ankle prostheses. The concept of the testing device relies on two aspects: almost any type of ankle prosthesis can be tested on it and it has to work on INSTRON axial-torsion testing machine. Starting from these requirements, a 3D functional assembly that reproduces the real movement of the ankle joint during gait cycle has...

Many dental practitioners do not use adhesive bridges because of concerns over high failure rates. Techniques for these restorations should be based on the fundamental principles of bridge design which require rigid, accurately fitting frameworks and careful control of the occlusion. The abutments generally require little if any tooth preparation. Greater security will result from more extensiv...

STIFF-PERSON syndrome (SPS) is a rare autoimmune central nervous system disorder characterized by fluctuating rigidity and paroxysmal painful spasms of axial and/or limb muscles, due to spinal cord hyperexcitability. Exacerbations of SPS can be triggered by abrupt tactile or auditory stimulation, movement, and stress or surgery. We present a case of a woman with SPS who had an acute exacerbatio...

The dorsal ectoderm of vertebrate gastrula is first specified into anterior fate by an activation signal and posteriorized by a graded transforming signal, leading to the formation of forebrain, midbrain, hindbrain and spinal cord along the anteroposterior (A-P) axis. Transplanted non-axial mesoderm rather than axial mesoderm has an ability to transform prospective anterior neural tissue into m...

Axial length (AL) is a significant indicator of eyeball development, but reports on the overall status of axial development in congenital cataract (CC) patients and its relationship with patient demographics, such as age, sex, and laterality, are rare. We prospectively investigated the AL of 1,586 patients ≤ 18 years old and undergoing cataract surgery in China from January 2005 to December 201...

Modern aeroengines employ labyrinth seal systems to the clearance between blade tip and surrounding engine casing. Understanding of wear mechanism fins abradable coatings on casing is necessary help aeroengine achieve higher efficiency. In this study, multiple tests with different types fin geometries are conducted a high-speed test rig speed 100m/s. Two motorized stages used simulate axial mov...

abstract nymphal survival and crawlers movement of bemisia tabaci (homoptera: aleyrodidae) on different varieties of cotton, gossypium hirsutum, was studied on 5 different varieties including, varamin, kucker-312, bulgar-557, sahel-80, and native (red leaf/red boll) at 24±2 °c, 65±5% rh, 16:8 (l: d) photoperiod in the greenhouse condition. crawlers' movement was significantly different on the v...

PURPOSE Eye motility disorders with axial high myopia and an enlarged globe are often characterized by a hypotropia of the affected eye, usually referred to as heavy-eye syndrome. Based on an intuitive interpretation of magnetic resonance (MR) images, the cause of the hypotropia has typically been assigned to the rectus muscles. In this study, the hypothesis that the oblique muscles play an imp...