Transnasal endoscopic orbital decompression is a viable alternative for external orbital decompression. Today, it can be performed due to the great development of endoscopic technology and specific endoscopic surgical instruments. It requires strong anatomic knowledge and skilled hands. We present our experience with endoscopic orbital decompression focusing on the surgical technique used in ou...

sold by surgical instrument makers, which have constantly come prominently to my notice daring the performnace of operations on the eye, and which, after considerable experience of the same, have forced me to try and effect a remedy for them. It is with that object in view, that I have devised an instrument, which I venture to bring before the notice of the profession, as having, in my humble o...

Parallel to the experimental work on the study of nuclear decay schemes and other problems in nuclear spectroscopy, continuous work has been devoted to the perfection of the spectroscopic instruments. Much of the earlier experimental investigations could be performed with rather simple and sometimes even crude techniques but such cases are becoming increasingly rare. The remaining problems gene...

A numerical simulation of pulsed cavity ring-down spectroscopy (CRDS) is developed with the commercially available software package GENERAL LASER ANALYSIS AND DESIGN. The model is verified through a series of numerical experiments. Several issues of concern in CRDS are investigated, including spatial resolution, misalignment, non-Gaussian beam input, and the effect of flames inside a ring-down ...

We give an overview of the current and future IFU capabilities on the Gemini 8-m telescopes. The telescopes are well-suited to integral field spectroscopy and both telescopes will have optical and nearinfrared IFUs within the next few years. Commissioning for the GMOS IFU on Gemini North has begun recently and it is now available to the community. Future integral field instruments will take adv...

The Spitzer Space Telescope, NASA’s Great Observatory for infrared astronomy, has made available new tools for the investigation of the infrared properties of planetary nebulae. The three instruments onboard, including the Infrared Array Camera (IRAC), the Multiband Imaging Photometer for Spitzer (MIPS), and the Infrared Spectrograph (IRS), provide imaging capability from 3.6 to 160 μm, and low...

conclusions the use of absorbable tacks during tapp confers significant benefit regarding the operating time, however it is a disadvantage due to the cost when compared with fibrin glue. results the group of tacks ‘tapp’ showed good results concerning the level of pain, fatigue and foreign body sensation comparable with those of the historical group. there were significant differences concernin...

around the tip of a sharp biased metallic needle M. Beleggia, 2 T. Kasama, D. J. Larson, T. F. Kelly, R. E. Dunin-Borkowski, and G. Pozzi Center for Electron Nanoscopy, Technical University of Denmark, Kongens Lyngby, Denmark Helmholtz-Zentrum Berlin für Materialien und Energie, Berlin, Germany CAMECA Instruments, Inc., Madison, WI, USA Ernst Ruska-Centre for Microscopy and Spectroscopy with El...

This article reviews tissue oximetry and imaging to study the preterm and newborn infant brain by near-infrared spectroscopy. These two technologies are now advanced; nearly 100 reports on their use in newborn infants have been published, and commercial instruments are available. The precision of oximetry, however, is a limitation for its clinical use of assessing cerebral oxygenation. Imaging ...