1 Most cases of malaria and most of the deaths caused by malaria occur in Africa.  Although most cases of malaria are caused by Plasmodium falciparum or P. vivax, P. falciparum accounts for almost all of the deaths caused by malaria.
For Echocardiography, color Doppler frame rates should be kept 17 Hz or above and preferably in the 20-30 Hz range. Every ultrasound machine has a numeric display of the current frame rate, which can range from less than 10 Hz to more than 60 Hz. Above: Image data area with FPS (Frames Per Second) and other adjustments.
A frame is a single one of those images, and the frame rate is a measure of frequency: how often the video is updated with a new frame. For video games, that translates to the frequency at which the game redraws the image on the screen. Frame rate is measured in frames per second (fps).