An on-line computer-based system for performing time domain spectroscopy. I. Main features of the basic system

Effect of Microwave Radiation on Copper(II) 2,2‘-Bipyridyl-Mediated Hydrolysis of Bis(p-nitrophenyl) Phosphodiester and Enzymatic Hydrolysis of Carbohydrates

“…For example, irradiation with microwaves of the hydrogen-bonded strands of DNA could lead to modifications in chain superstructure. On the other hand, the phosphoester moiety itself, despite the fact that it possesses rather polar portions usually associated with microwave uptake, showed little or no microwave absorption over a wide range of frequencies (1000−10 000 MHz), as was reported by two independent groups of scientists at Uppsala University in Sweden and King's College in London . The model reaction we have studied is the hydrolysis of bis( p -nitrophenyl) phosphodiester with copper(II) 2,2‘-bipyridyl complex, as shown in Scheme .…”

Dielectric properties of developing rabbit brain at 37°C

“…In this study the frequency range of the dielectric data has been extended to 18 GHz by utilizing a recently devised frequency domain method [Steel et al, 19841. By combining these higher frequency data with those obtained on the time domain spectrometer (TDS) previously described [Dawkins et al, 1979[Dawkins et al, , 1981a, the dielectric behavior of water in developing rabbit brain is studied. The measurements in the present study were made on whole brain tissue rather than on cerebral cortex.…”

Comparison of the dielectric properties of normal and wounded human skin material

“…The dielectric measurements were carried out using an HP 140 Time Domain Spectrometer on line to a PDP 11/10 computer. Full details of the equipment and the experimental technique have been described previously [Dawkins et al, 1979[Dawkins et al, , 1981a, and examples of its use in measuring the dielectric properties of biological material also appear elsewhere [Gabriel et al, 19831. The data were taken at 1 "C, this temperature being chosen in order to cover as large a fraction of the water dispersion as possible with the available measuring frequency range (10 MHz-10 GHz).…”