Appendix:Polish surnames. Polish surnames are known from the Middle Ages, but only 200 years ago did the inherited surnames become compulsory. The most common Polish names Nowak, Nowakowski, Nowacki, and Nowicki are variants meaning new, Przybyszewski and Przybylski mean he who has arrived.
Beta Waves. Beta Waves, sometimes also called the beta rhythm, is the frequency of the electrical activity in the brain that falls between 12 and 30 Hz and is the state that is associated with normal waking consciousness. These brain waves are classified as low and high amplitudes.
pulse wave. Etymology: L, pulsare, to beat; AS, wafian. a transient increase in blood pressure that spreads like a wave through the arterial system. It begins with the ejection of blood by the ventricles during systole.n electromyographic tracing associated with denervation and some types of primary muscle disease. pulse wave. the elevation of the pulse felt by the finger or shown graphically in a recording of pulse pressure.