منابع مشابه
Gold foil and its use in modern dentistry.
Gold foil is the most underused restorative material in dentistry, and contrary to popular belief, it is still being used in many dental practices. As demonstrated, it can be used more easily than years ago and give the patient a restoration that may last a lifetime. Reasons for not using it have been addressed, and a simplified method of restoration has been explained in detail. It is the hope...
متن کاملDetection of High-Angle Alpha Particle Scattering through Gold Foil
In the beginning of the 20th century, physicists had begun to determine the structure of atoms. J.J. Thomson had discovered the presence of electrons negatively charged particles with a mass much less than the overall mass of the electron using cathode rays[1]. Thomson further hypothesized that the full structure of the atom consisted of electrons surrounded by a ”soup” of positive charge. This...
متن کاملA gold foil electrode: extending the horizons for clinical electroretinography.
A gold foil ERG electrode is described. The device is inexpensive and simple to fabricate. Since it is hooked over the lower lid and makes minimal touch contact with the inferior limbal area, it can be used in circumstances which require prolonged testing of retinal function or in eyes with corneal pathology. Because the optics of the eye are not compromised, it is possible, with the use of app...
متن کاملNondestructive analysis of silver in gold foil using synchrotron radiation X-ray fluorescence spectrometry.
Small particles of gold foil detached from an indoor decoration might be important evidence to associate a suspect with a crime scene. We have investigated the application of elemental analysis using synchrotron radiation X-ray fluorescence spectrometry to discriminate small particles of gold foil. Eight kinds of gold foil samples collected in Japan were used in the experiments. As a result of ...
متن کاملCerebral Oximetry in Cardiac Surgery
Stroke and neurocognitive dysfunction are common after cardiac surgery with rates of approximately 3-6% and 30-50%, respectively (1,2). Multiple etiologies have been proposed for these neurological insults. Microembolism, macroembolism, hyoperfusion, or some combination of these are the most likely culprits. In all of these scenarios the final pathway is tissue ischemia, resulting in neurodegen...
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ژورنال
عنوان ژورنال: The Boston Medical and Surgical Journal
سال: 1897
ISSN: 0096-6762,1533-4406
DOI: 10.1056/nejm189703251361204