Both migraine and dizziness are very frequent complaints, but the comorbidity of the two disorders is higher than it might be expected to be on the basis of chance alone. This implies a possible causal relationship, but definite diagnostic criteria for migraine-related vertigo are still lacking. Very recent attempts in this direction have shown that migraine may be the third leading cause of ve...

We present an immersed boundary method based on volume penalization, with which pulsatile flow in a model cerebral aneurysm is simulated. The model aneurysm consists of a curved vessel merged with a spherical cavity. The dominant vortical structures arising in the time-dependent flow are discussed and the evolution of the maximal shear stress in the aneurysm is analyzed. We approximate flow pro...

A 21-year-old male known case of primary hypothyroidism, Seizure disorder sequelae of an old trauma receiving sodium valproate, clobazam and phenobarbitone for control of Generalized tonic clonic seizures reported to neurology OPD with history of altered sensorium and gait unsteadiness for 1 week with history of hike in valproate dose 2 weeks before. On examination he was drowsy. Neurological e...

Ryan J. MacDonald, MD Peter P. Stanich, MD Priya A. Monrad, MD Farrah J. Mateen, MD A 43-year-old man with chronic pancreatitis and 7-kg weight loss secondary to persistent nausea and reduced oral intake presented with double vision and gait unsteadiness. Neurologic examination revealed complete horizontal and partial vertical ophthalmoplegia with prominent gait ataxia (video 1 on the Neurology...

Clinical vascular features, either as manifest vascular disease or as cardiovascular risk factors were compared in AD with and without neuropathological white matter disease (WMD). The aim of the study was to investigate whether the presence of WMD and the severity of either AD pathology or WMD were associated with different cardiovascular profiles. A total of 44 AD cases were retrospectively s...

BACKGROUND Diplopia is a common subjective complaint that can be the first manifestation of a serious pathology. Here, we report a rare case of midbrain infarction involving the lateral subnucleus of the oculomotor nuclear complex presenting as diplopia, with no other stroke manifestations. CASE REPORT An 83-year-old right-handed white man with past medical history of diabetes mellitus, hyper...

When a cylinder is mounted on an elastic support within current, vortex-induced vibrations (VIV) may occur down to Reynolds number ( Re ) close $20$ , based the body diameter $D$ and inflow velocity $U$ ), i.e. below critical value of $47$ reported for onset flow unsteadiness when fixed. The impact forced rotation elastically system behaviour explored numerically $Re \leqslant 30$ over wide ran...

Shock waves interacting with turbulent boundary layers on wings can result first in self-sustained flow unsteadiness and eventually structural vibration. Due to its importance modern wing design aircraft certification, the transonic physics continue be investigated intensively. Herein we focus discussion three main aspects. First, assess a practical implementation of an iterative resolvent algo...

The effects of static surface deformations on a spatially developing supersonic boundary layer flow at Mach number M=4 and Reynolds Reδin≈49300, based inflow thickness (δin), are analyzed by performing large eddy simulations. Two low-order structural modes rectangular clamped panel dimensions ≈33δin×48δin prescribed with modal amplitudes δin. these examined the layer, including changes in mean ...

The relationship between the upstream boundary layer and the unsteadiness of the separated flow in a Mach 2 compression ramp interaction is investigated by performing wide-field PIV and PLS measurements in streamwise-spanwise planes. Presence of spanwise strips of elongated regions of uniform momentum is detected in the upstream boundary layer. These long coherent structures exhibit strong simi...