One of the main elements in hardware-based adaptive optics systems is a deformable mirror. There quite large number such mirrors based on different principles and exhibiting varying performance. They constitute significant portion cost final optical devices. In this study, we consider possibility replacing an mirror with amplitude Fresnel zone plate, implemented using digital light-processing m...

The application of microbeams is providing new insights into the actions of radiation at the cell and tissue levels. So far, this has been achieved exclusively through the use of collimated charged particles. One alternative is to use ultrasoft X rays, focused by X-ray diffractive optics. We have developed a unique facility that uses 0.2-0.8-mm-diameter zone plates to focus ultrasoft X rays to ...

High-dynamic range imaging from space in the visible, aiming in particular at the detection of terrestrial exoplanets, necessitates not only the use of a coronagraph, but also of adaptive optics to correct optical defects in real time. Indeed, these defects scatter light and give birth to speckles in the image plane. Speckles can be cancelled by driving a deformable mirror to measure and compen...

In turbid media such as biological tissue, multiple scattering hinders direct light focusing at depths beyond one transport mean free path. As a solution to this problem, time-reversed ultrasonically encoded (TRUE) optical focusing is proposed based on ultrasonic encoding of diffused laser light and optical time reversal. In TRUE focusing, a laser beam of long coherence length illuminates a tur...

Based on mirror neurons' properties, viewers are emotionally engaged when observing others - even when not actively interacting; therefore, characterizing non-participatory action-viewing as isolated may be misleading. Instead, we propose a continuum of socio-emotional engagement. We also highlight recent developmental work that uses a second-person perspective, investigating behavioral, physio...

A recent study has shown, using fMRI, that the mirror neuron system does not mediate action understanding when the observed action is novel or when it is hard to understand.

how to cite this article: iibtihel rébai i, benrhouma h, kraoua i, drissi c, ben hammouda m, gouider-khouja n. mirror movements and myelomeningocele: report of a single case and review of literature. iran j child neurol. 2013 summer;7(3):58-61.   objective mirror movements (mm) have been described in several pathological conditions. their association with neural tube defects is rare, and only 5...

one of the important elements of islamic architecture is mirror and mirror work. the art of mirror work is a persian traditional art which is usually used in the interior decoration of historical buildings, particular religious buildings. mirror work is considered as a kind of mural painting, but it is different from other types of mural paintings all around the world regarding its conceptual, ...