Background and Objective: Cerebro-Vascular Accident (CVA) is considered to be one of the main causes of acquired motor disability in adults. Different motor rehabilitation programs are being designed in order to improve motor difficulties of patients with CVA. In the current study we aimed to assess the effect of task-based mirror therapy on upper limb functions and activities of daily living i...

Strong topological insulators (TIs) support topological surfaces states on any crystal surface. In contrast, a weak, time-reversal-symmetry-driven TI with at least one non-zero v1, v2, v3 ℤ2 index should host spin-locked topological surface states on the surfaces that are not parallel to the crystal plane with Miller indices (v1 v2 v3). On the other hand, mirror symmetry can protect an even num...

We investigate the influence of the mirror shape on the imaging quality of catadioptric sensors. For axially symmetrical mirrors we calculate the locations of the virtual image points considering incident quasi-parallel light rays. Using second order approximations, we give analytical expressions for the two limiting surfaces of this “virtual image zone”. This is different to numerical or ray t...

Mirror neurons, discovered by Rizzolatti et al. in the 1990s , have been the subject of much debate. There are many theories regarding their possible function, both evolutionarily as well as in day to day life. It has been proposed that mirror neurons are the single neuron substrates of the Common Code , which links perceptual and action representations to allow the brain to predict of the outc...

Precision positioning and control are critical to industrial-use processing machines. In order to have components fabricated with excellent precision, the measurement of small-angle variations must be as accurate as possible. To achieve this goal, this study provides a new and simple optical mechanism by varying light intensity. A He-Ne laser beam was passed through an attenuator and into a bea...

This study explores the possibility of tailoring fusion zone in conduction mode laser welding using a deformable mirror for beam shaping multi-kilowatt continuous wave sources. Three power density distributions were shaped and used bead on plate Ti64 plates at three travel speeds. The effect melt pool free surface geometry, cross section, microstructure hardness profiles was measured studied. I...

In guinea pig auditory cortex, two core areas, a primary area (AI) and a dorsocaudal field (DC), and two belt regions ventral to AI and DC (VRB and VCB) with an intermediate zone (T) in between, together with a small field (S) rostral to AI, have been reported in single-electrode studies although field S and zone T have not been observed in imaging studies. Using a high-resolution in vivo optic...

The paper presents the results of DIAL measurements of the vertical ozone distribution at the Siberian lidar station. Sensing is performed according to the method of differential absorption and scattering at wavelength pair of 299/341 nm, which are, respectively, the first and second Stokes components of SRS conversion of 4th harmonic of Nd:YAG laser (266 nm) in hydrogen. Lidar with receiving m...