In stochastic processes, chaos theory and time series analysis, detrended fluctuation analysis (DFA) is a method for determining the statistical self-affinity of a signal.
Sore throats caused by tonsillitis or streptococcus may trigger a canker sore even after the initial throat condition has subsided. Also known as an aphthous ulcer, canker sores are painful and unsightly, but they are not contagious.
A canker sore is an open sore inside the mouth or along the tongue. This type of sore can also be referred to as an aphthous ulcer. They can cause some discomfort and are normally white or yellow in color along with a red area in the middle. cold sore is normally associated with the herpes simplex virus and appears along the lips and side of the mouth. These sores are small but painful and red in color. They can also be called fever blisters. A cold sore can tend to leak fluid and scab at times.