Gorham's disease is a rare disorder involving the proliferation of endothelial channels resulting in resorption and disappearance of bone. An unusual case of polyostotic Gorham's disease affecting the scapula, humerus, radius, and ulna in a 39-year-old woman is described. The patient had extensive disease spreading across both the glenohumeral and humeroulnar joints. This is the first report of...

This study describes renal function at multiple points in time after transplantation and the influence of donor and recipient factors independent of rejection on this function. Donor and recipient records for 83 consecutive cadaveric renal transplants performed between 1992 and 1994 at Johns Hopkins Bayview Medical Center were reviewed retrospectively. Donor age, gender, weight, terminal serum ...

This paper presents analytical and experimental results of an investigation of joint actuators and their suitability for a particular class of complex mechanisms: serpentine robots. In practice, serpentine robots usually comprise of multiple segments connected by joints. Some serpentine robots provide legged, wheeled, or tracked propulsion, and, in addition, actuation for the joints. We compare...

Trochoidal milling is a well-stablished machining strategy which still allows for the introduction of new approaches. This can be applied to any kind material, although it usually associated advanced materials, such as titanium and nickel alloys. study based on adaptation feed speed tool with Ti-6Al-4V, so chip width maintained constant without modifying path geometry. A singularity in experime...

It is unclear how sensory information from muscle spindles located within muscles spanning multiple joints influences perception of body position and motion. We address this issue by comparing errors in estimating limb made human subjects with predicted two musculoskeletal models, one only monoarticulars both biarticulars. provide evidence that biarticulars produce coupling between joints, whic...

Isolated subtalar joint (STJ) fusions are performed routinely by many foot and ankle surgeons for various hindfoot pathologies, but were historically avoided due to their potential complications on the adjacent joints (1). Since the inception of this isolated arthrodesis, multiple studies have been undertaken to demonstrate the effects on the surrounding joints. Jouveniaux et al concluded with ...

A basal clearance is usually designed beneath barriers to enable sufficient discharge minimise the maintenance work over service life. Current design guidelines for multiple neglect influence of clearance, resulting in either an overconservative or a nonconservative impact force acting on subsequent barriers. In this study, physical model tests were carried out investigate effects height (H c )...

Tarantulas extend the femur-patella (proximal) and tibia-metatarsal (distal) joints of their legs hydraulically. Because these two hydraulically actuated joints are positioned in series, hemolymph flow within each leg is expected to mechanically couple the movement of the joints. In the current study, we tested two hypotheses: (1) at lower temperatures, movement of the two in-series hydraulic j...

in this paper, formation of wrinkling in bimetal deep drawing process has been investigated by the analytical, numerical and experimental methods. the effects of width of flange, fillet radii of matrix and punch, clearance of blank holder, contact conditions and relative thickness of two sheets on the number and height of wrinkle waves are studied. clearance and contact conditions have the grea...

In cystic fibrosis (CF), acute exacerbations can decrease the effectiveness of patients' usual airway clearance techniques (ACT). In order to maintain effective airway clearance and preserve lung function, these ACT must be adapted to prevent further dyspnoea and fatigue and improve ease of expectoration. Mechanical insufflation-exsufflation (MI-E) is widely used in neuromuscular disorders to f...