 568  533. The reason for this vehicular dependence is that the antenna current distribution and impedance depend upon the nature of the surroundings. The vehicle on which the whip is mounted actually becomes a part of the antenna circuit and represents a sort of counter poise for the whip. Therefore the antenna impedance will vary for different vehicles and mounting positions. If the mounting position is changed the matching networks have to be retuned for optimum performance. 534. Other simple methods include the following: if a resistor or capacitor is somewhat low, adding a small resistor in series or a small capacitor in parallel can produce the desired increase. To reduce these components if too high, a larger resistor in parallel or larger capacitor in series can achieve the desired result. With such methods and a reliable means of checking frequency, there is no need for an unusually precise means of determining resistance or capacitance. 535. This unit is adaptable to practically any electronic organ. It is simple to build the one-tube amplifier and add another set of contacts. The tones produced have the characteristic percussion «plunk» bell-like sound. Perhaps a better way to explain the tone is to say that it sounds as though a hammer was used to hit a tone bar. Any number of notes can be played simultaneously. All keys must be released before the next is played, however. Selective percussion is possible; that is, if the preceding note is held until after the next one is played, no percussion will sound. 536. In the last 20 years I have seen 150 ganglion cysts, all of which have been cured by simple pressure without a single recurrence and without a single failure. I have read in the literature that a large percentage of these cycsts have to be operated on for cure. I have seen 3 or 4 that had been operated on before I saw them, and all but one of these had recurred after operation. They were all subsequently cured by simple pressure. Is my experience unique, or are other surgeons subjecting these patients to operation before trying this simple method? 537. Here the CS signified «press lever for food» and was associated with electrographic desnychronization. The DS signified «no food» to the hungry cat and is contrast to the preceding finding was accompanied by a desynchronized rather than synchronized EEC Thus, the electrical pattern expressed would appear to depend as much upon the behavioral meaning of the signal as on the requirement for attentiveness and signal perception. Under some circumstances the neural processes may be competitive, the electrical outcome depending upon relative predominance and algebraic summation. 568 |
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