IACUC GUIDANCE ON PI RECORDKEEPING FOR ANIMAL RESEARCH. INTRODUCTION. This document is provided to assist the animal investigator in determining the appropriate and. necessary record-keeping for animals in research, as mandated by federal and university laws, regulations, and policies.
Meaning Of Opal. Everyone associates opals as one of the worlds most unique gemstone. but what is the meaning of the word Opal. The name Opal is derived from ancient Sanakrit Upala meaning precious stone and later the Greek Derivative Opallios meaning to see a change of colour.
What distinguishes the opal from other stones is the unique play of color and glint of light that sets the opal part from every other gemstone. The most common kind of opal, the white opal, has a white, milky base color with a rainbow of pastel shades, while the black opal reflects blue, gray and green tones.