In addition to the neurological and behavioral consequences of methamphetamine abuse, long-term users also suffer physical effects, including weight loss, severe tooth decay and tooth loss (âmeth mouthâ), and skin sores.
(The term biometrics is derived from the Greek words bio meaning life and metric meaning to measure.) There are two main types of biometric identifiers: Physiological characteristics: The shape or composition of the body. Behavioral characteristics: The behavior of a person. Examples of physiological characteristics used for biometric authentication include fingerprints; DNA; face, hand, retina or ear features; and odor.
An operator signature is a biometric mode where the manner in which a person using a device or complex system is recorded as a verification template. One potential use for this type of biometric signature is to distinguish among remote users of telerobotic surgery systems that utilize public networks for communication.