The aim of the present study was to analyze the developmental changes in three spatial processes, namely, in positional reconstruction involving the retention of spatial locations per se (Positional encoding task), in the assignment of objects to positions (Object-to-position assignment task), and in the integration of these two (Combined task). A span procedure was used to assess the developme...

The positional accuracy of disc storing mechanism for benthic drill is the guarantee of long hole coring in deep sea. Aiming the lack of positional accuracy analysis on disc storing mechanism, the mathematic model of the positional accuracy for disc storing mechanism is presented by using complex vector and matrix analyzing method. The analytical formula of crank rotation positional accuracy is...

The vertebral artery test (VAT) is often used during the physical therapy examination but its validity as a clinical test of arterial patency is a topic of debate. When examining patients with dizziness, a modified VAT (mVAT) is routinely used to minimize angular changes of the ear limiting stimulation of the vestibular system. The mVAT can be helpful in the differential diagnostic process as d...

Positional plagiocephaly (deformational or occipital plagiocephaly) is the most common head-shape deformity, which is presented to specialist craniofacial units. The aim of management is to reduce pressure on the affected area in the expectation that brain growth will drive normalization of the head shape. Current management includes a variety of protocols based on repositioning advice or helme...

Positional vertigo is a common neurologic emergency and mostly the etiology is peripheral. However, central diseases may mimic peripheral positional vertigo at their initial presentation. We here describe the results of a visual suppression test in six patients with spinocerebellar ataxia type 6 (SCA6), a central positional vertigo, and nine patients with benign paroxysmal positional vertigo (B...

Mass transfer in a protein A medium with silica matrix was analyzed this study. Using confocal laser scanning microscopy, we monitored the positional and temporal changes polyclonal human IgG during batch adsorption. simple theoretical model based on Fick’s law of diffusion Langmuir adsorption used to numerically approximate external intraparticle mass-transfer properties single particles. The ...

OBJECTIVE Benign paroxysmal positional vertigo (BPPV) is the most common peripheral cause of vertigo. It can be defined as transient vertigo induced by rapid changes in head position associated with a characteristic paroxysmal positional nystagmus. The aim of this study was to search for the possible role of oxidative stress and inflammatory mediators in the pathogenesis of BPPV. MATERIALS AN...