1. It is inexpensive. 2. It is portable and can be carried in the pocket. 3. All the parts are easily detachable and replaced. 4. It is aseptic. 5. The spatulate form can also be used as a tongue depressor and as a simple throat illuminator at the bed side or where illumination by day light is inadequate. 6. It can be used as a trans-illuminator of the accessory sinuses of the nose in a perfect...

We report the first demonstration of a fast wavelength-switchable 340/380 nm light-emitting diode (LED) illuminator for Fura-2 ratiometric Ca2+ imaging of live cells. The LEDs closely match the excitation peaks of bound and free Fura-2 and enables the precise detection of cytosolic Ca2+ concentrations, which is only limited by the Ca2+ response of Fura-2. Using this illuminator, we have shown t...

This paper presents a low-cost method of constructing a UV illuminator, which is considered an important component of a gel documentation system. The procedure involves using a smallest-possible UV lamp in the UV illuminator instead of 4 UV lamps. A comparative analysis of images produced by using the commercial gel documentation system and our prototype was performed using MATLAB. Despite the ...

second. The other ciliates studied obviously have a much lower speed of coordinating impulse. These values are so far below the velocities of true neural impulses that it is not possible to consider a "neuromotor" factor in the coordination of these Protozoa. Further investigations are in progress along the lines indicated here and will be reported in detail. The writer is indebted to Dr. W. M....

PURPOSE To describe a simple technique that uses posterior chandelier illumination during Descemet membrane endothelial keratoplasty in cases of severe bullous keratopathy (BK). METHODS Five eyes of 4 patients with advanced BK undergoing Descemet membrane endothelial keratoplasty were retrospectively analyzed. The pupil of the host eye was not treated with mydriatic or miotic agents. The chan...