MRI of a knee. MRIs employ powerful magnets which produce a strong magnetic field that forces protons in the body to align with that field. When a radiofrequency current is then pulsed through the patient, the protons are stimulated, and spin out of equilibrium, straining against the pull of the magnetic field.
Noun. 1. aestivation - (zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period. estivation. zoological science, zoology-the branch of biology that studies animals.
Moving between forms. When you switch between two open forms, the Deactivate event occurs for the first form, and the Activate event occurs for the second form: Deactivate (form1) Activate (form2) The Deactivate event for a form also occurs when you switch from the form to another object tab in Access.