1. The compound action potential (CAP) output from the isolated eye of Aplysia, in darkness at constant temperature, exhibits a circadian rhythm of CAP frequency and a circadian rhythm of CAP amplitude when recorded in culture medium for up to two weeks. 2. Deuterated culture medium lengthened the period of the CAP frequency rhythm linearly from 26-7 h in normal culture medium to 33-7 h in 50% ...

Experimental results and conclusions: Several designs with the feed position at point A for left-hand CP operation were constructed and experimentally studied. Fig. 2 shows the measured return loss against frequency for the cases with e = 0, 8, 10.5 and 1 1.5 mm; the case with e = 0 represents a corresponding regular circularly polarised microstrip antenna with an unslotted ground plane. The co...

Frequency is often thought to be an important factor in itinerary choice in civil aviation. Frequency as such has however no value to the traveler, since he will only use one flight at a time. The utility of frequency lies in flexibility and in lowering schedule delay. Higher frequencies increase the chance that available travel schemes resemble desired travel schemes. If frequency is high, the...

Portable systems today are designed with lowering the energy consumption as the primary design metric. This is unfortunate since maximizing battery lifetime is a more appropriate inetric, and lowering energy does not necessarily mean improving battery lifetime. In this paper we first show h o w to design battery-friendly implementations of common signal processing kernels such as FIR filters an...

A low power model for Code Division Multiple Access (CDMA) based cellular communication system is developed. The dynamic power is minimized by reducing the frequency of the Phase Lock Loop (PLL) after lock is established. The paper addresses the feasibility of lowering the clock frequency of the processing unit that models the PLL is addressed and modulator/demodulator functions of the system w...

OBJECTIVE To see if the claim that lowering cholesterol values prevents coronary heart disease is true or if it is based on citation of supportive trials only. DESIGN Comparison of frequency of citation with outcome of all controlled cholesterol lowering trials using coronary heart disease or death, or both, as end point. SUBJECTS 22 controlled cholesterol lowering trials. RESULTS Trials ...

Lipid-lowering therapy, as assessed by angiography, clearly benefits the arterial disease process. For example, among intensively treated patients in FATS the frequency of definite progression per lesion at risk was reduced by 75% among mild and moderate lesions, which form the great preponderance of the lesion population. Regression frequency per lesion was more than doubled by intensive thera...