A direct numerical simulation of an oblique shock wave impinging on a turbulent boundary layer at Mach number 2.28 is carried out moderate Reynolds number, simulating flow conditions similar to those the experiment by Dupont et al. ( J. Fluid Mech. , vol. 559, 2006, pp. 255–277). The low-frequency unsteadiness, whose characteristics have been focus considerable research efforts, here investigat...

Abstract Background Many older people with Orthostatic Hypotension (OH) may not report typical symptoms of dizziness, light-headedness, or unsteadiness. However, the relationships between OH and falls in absence are yet established. Methods Continuous orthostatic BP was measured during active stand using a Finometer at Wave 1 TILDA participants aged≥70 years. OH, without defined as sustained dr...

This paper focuses on the temporal and spatial evolutions of critical flow under unsteady rapidly varied conditions, which is defined based different viewpoints steady gradually conditions in classical fluid mechanics theory. So far, fundamental theory largely unknown for conditions. Taking a Gauss-type weir as an example, this work investigates comprehensively comparatively influences unsteadi...

A 59-year-old man died following a 20-year history of fulminant chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). His symptoms began with gait unsteadiness and ascending severe weakness and paresthesias, followed by papilledema and compressive cervical myelopathy from hypertrophic nerve roots (figure). Initial aggressive immunotherapy resulted in a return to ambulation and emplo...

Moyamoya disease is a chronic, progressive bilateral occlusion or stenosis of terminal internal carotid arteries as well as the proximal anterior and middle cerebral arteries. Hemorrhage of the splenium of the corpus callosum rarely occurs with moyamoya disease. In this article, we report a case of a 53-year-old woman diagnosed with moyamoya disease by cerebral angiography. She presented to the...

A 22-year-old woman presented with learning disability and gait unsteadiness since adolescence. Medical history revealed episodes of encephalopathy and myoclonic jerks associated with intercurrent infections. Examination showed spastic paraparesis, ataxia and optic atrophy. Neuroimaging revealed agenesis of corpus callosum (Figure). Plasma amino acid analysis disclosed elevated glycine levels w...