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.
It is what it is in latin is: Est quod est - literally is what is, you skip the pronouns because the verb forms already denote the gender and number. Id est quod idâ¦ est - it is what it is, not skipping the pronoun automatically puts an emphasis on it. The stress is on it. Careful with is.