Communication always involves which of the following?

Emotional signs of stress include aches and nausea

[120 total points] (public health) in one of the largest human experiments ever conducted, in 1954 a randomized controlled trial was run to see whether a vaccine developed by a doctor named jonas salk was effective in preventing paralytic polio. a total of 401,974 children (ages 6–9), chosen to be representative of those who might be susceptible to the disease, were randomized to two groups: 200,745 children (the control group c) were injected with a harmless saline solution (a placebo) and the other 201,229 children (the treatment group t) were injected with salk’s vaccine. what was the point of giving saline solution to the children who didn’t get the vaccine? explain briefly.

Match the terms to their correct definitions. 1. commuting flexibility in when you work 2. telecommuting traveling to get to work 3. flextime a form of flexplace that allows people to use technology to do their work away from the office 4. flexplace flexibility in where you work