Dither is an intentionally applied form of noise used to randomize quantization error, preventing large-scale patterns such as color banding in images. Dither is routinely used in processing of both digital audio and digital video data, and is often one of the last stages of audio production to compact disc.
Hepatic porphyria. Hepatic porphyrias is a form of porphyria in which the enzyme deficiency occurs in the liver. Examples include (in order of synthesis pathway): Acute intermittent porphyria. Porphyria cutanea tarda and Hepatoerythropoietic porphyria.
Introduction: Paramecium bursaria, found in almost all kinds of freshwater habitats, is a species of ciliate protozoan that has a mutualistic symbiotic relationship with green alga called Chlorella.Whereas natural populations of P. bursaria are known, their Chorella-bearing counterparts are commoner in natural habitats.he algae live inside the cytoplasm of P. bursaria and provide it with food, while in return, P. bursaria provides the algae with movement and protection (as depicted in the video below). Video 1. Mutualistic relationship between Paramecium bursaria and green algae Chlorella.