Though conceptually appealing, it is impossible to fully account in practice for all the individual decisions and behaviors that constitute the nation’s water use. Nevertheless, statistical sampling ...

Determining blood loss at the scene of trauma can be critical to successful patient treatment. Health care workers such as emergency medical technicians have used visual estimation, which can be ...

Several states with extensive water use databases rely upon the census approach. That is, data are collected for all water users withdrawing amounts greater than a specified threshold that varies from ...