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Genetic differences both between individuals and populations are studied for their evolutionary relevance and for their potential medical applications. Most of the genetic differentiation among populations are caused by random drift that should affect all loci across the genome in a similar manner. When a locus shows extraordinary high or low levels of… (More)
Automatic speech recognition in real world situations often requires the use of microphones distant from speaker's mouth. One or several microphones are placed in the surroundings to capture many versions of the original signal. Recognition with a single far field microphone yields considerably poorer performance than with person-mounted devices (headset,… (More)
The construction of a simple keyboard-printer is described. It is intended for use with single-board microcomputers such as the KIM and SYM which have a 20-mA loop ASCII interface.
The construction of a simple stepper motor and drive circuit made from commercial components is described. The use of the stepper motor for a monochromator wavelength drive is discussed. The rate and direction of scan can be controlled by either a hardwired timer circuit or by a microcomputer.
The electrophoretic behavior of several aquatic vertebrates species is reported in order to verify if fish cell membrane composition different from human one, can affect electrophoretic behavior of fish red blood cells. In fact it's known that the mobility of a particle under the influence of an electric current appears to depend entirely on the nature of… (More)