Seeing How the Brain Changes During Aging
... be made: RADIOTRACER CHEMISTRY TIP SHEET Positron emission tomography (PET) opens a window on human health and behaviorwith its ability to visualize biochemical activity in the living body. Thetechnique relies on short-lived, radioactive chemicals that emit bursts ofenergy as they decay. Scientists use thes...Positron emission tomography (PET) opens a window on human health and behaviorwith its ability to visualize biochemical activity in the living body. Thetechnique relies on short-lived, radioactive chemicals that emit bursts ofenergy as they decay. Scientists use thes...New Form Of Gene Therapy Holds Promise For The Future
...was firefly luciferase, an enzyme thatcauses light emission and can be measured easily with a luminometer. In thelaboratory, they inserted the luciferase gene into a genetically altered virusthat could not reproduce. To stimulate and control the production of luciferase,the researchers inserted specific short...The CIA Would Like To Know What Scientists Are Seeing Over The Rainbow
... to the chromosomes. The wavelengths of light, or emission spectrum, each painted chromosome emitted provided... the next, computers rapidly detect differences in emission spectra and assign each chromosome its own easy-to-see color. In a spectral karyotype from a health...