In the present report we used the calcium indicator fura-2 to compare intracellular levels of free calcium in growth cones of isolated Helisoma neurons under a variety of experimental conditions.
An electronically tunable reflection polarizer which exploits the dielectric anisotropy of nematic liquid crystals (LC) has been designed, fabricated and measured in a frequency band centered at 13
Electronic excitation of condensed-gas solids by MeV light ions results both in luminescence and in kinetic ejection of atoms and molecules from the surface of the solid.
Variable-rate coding is essential for electronic subcarrier multiplexed systems.
We experimentally investigate PM-32QAM with up to 16 subcarriers per wavelength and demonstrate that at a net bitrate of 350 Gbit/s, the distance can be increased by 300 km in WDM transmission usin
The fabrication and performance characteristics of frequency tunable two-section distributed feedback lasers are reported.
SEPTEMBER 1956 Copyright 1956, American Telephone and Telegraph Company NUMBER 5 Electronics in Telephone Switching Systems (Manuscript received March 18, 1956) By A. E.
Loops are the facilities between the local central office and the subscriber. For the most part, the individual customer's loop is a pair of metallic conductors.
The experiments by the author and L. H. Germer, by G. P. Thomson and by others from which the wave properties of electrons are adduced are briefly described.
The production of integrated circuits involves some of the most sophisticated and precise manufacturing techniques ever developed.
