How We Lose Heat to the Environment. 1  Radiation - loss of heat to the environment due to the temperature gradient (this occurs only as long as the ambient temperature is below 98.6). Factors important in radiant heat loss are the surface area and the temperature gradient.
Residential treatment center. A residential treatment center (RTC), sometimes called a rehab, is a live-in health care facility providing therapy for substance abuse, mental illness, or other behavioral problems. Residential treatment may be considered the last-ditch approach to treating abnormal psychology or psychopathology.
RTS: Restless Texting Syndrome. When an anxious texter sends a second message after his/her first message has not been responded to for an extended period of time. The message is different from his/her first text message and is done in an attempt to extend the conversation for fear that his/her previous message was viewed as a conversation ender.