In 2006, three ski patrol members were killed at Mammoth Mountain ski resort after falling into a snow depression surrounding a volcanic fumarole and filled with cool CO 2 gas. High concentrations of CO 2 gas in soils can also damage or destroy vegetation, as is visible in several areas on Mammoth Mountain.
ID Control's USB Token is a portable end-user authentication token that can replace user name and password for workstation, website, VPN, file, email, network, file and/or disk access security. ID Control USB Token plugs into any standard USB port and can even run without any software. Since authentication products come in various form factors, the user selection process is based on ease of use and flexibility, especially when in remote locations.
A token economy is a form of behavior modification designed to increase desirable behavior and decrease undesirable behavior with the use of tokens. Individuals receive tokens immediately after displaying desirable behavior. The tokens are collected and later exchanged for a meaningful object or privilege. Tokens: Anything that is visible and countable can be used as a token. 2  Tokens should preferably be attractive, easy to carry and dispense, and difficult to counterfeit. 3  Commonly used items include poker chips, stickers, point tallies, or play money.