They also measured the activity of telomerase, which is the enzyme responsible for repairing telomeres.
But experiments that measured the activity of handfuls of neurons in the animals' brains suggested there was no predictable pattern in how those memories were stored.
Researchers at the University of Sussex and Imperial College, London, measured the activity of neurons in people's brains as the drugs took hold.
They measured the activity of neurons connecting different brain areas in real time to determine which networks were active when mice pressed the lever.
Dr. Carmena wondered what would happen if he kept the decoder constant as it measured the activity of just a few neurons observed to fire reliably with a given task.
We measured the activity of four enzymes that play important roles in decomposition processes and nutrient cycling by degrading cellulose (β-xylosidase), xylan (xylosidase), chitin (N-acetyl-glucosaminidase), and polyphosphates (acid phosphatase).
To detect the level of neural activity, they measured the activity of a protein that is expressed only when neurons fire.
The study, which was written up in Science and measured the activity of 45 genes, revealed widespread gene-expression differences between root and leaf tissue.
The researchers measured the activity of genes in the muscles before and after the training.
Although it measured the activity of just nine women, the results were arresting.
Next, we measured the activity of the entire 10.7 kb upstream region in the luciferase reporter assay when each of our different NACP-Rep1 alleles were present.
