The cerebral cortex, also known as the cerebrum, is the largest portion of the brain, located right under the forehead and it is divided into two parts, a right and a left hemisphere.They in turn have a total of four lobes â the frontal, parietal, temporal and occipital lobes.he cerebral cortex, also known as the cerebrum, is the largest portion of the brain, located right under the forehead and it is divided into two parts, a right and a left hemisphere.
A blockalteste was a block leader in the concentration camps. There were either the German Soldiers assigned to be a block leader of a block of buildings or a prisoner assigned to do the duty. blockalteste was a block leader in the concentration camps. There were either the German Soldiers assigned to be a block leader of a block of buildings or a prisoner assigned to do the duty.
Specimen Validity Testing. Specimen Validity Testing. While it is the most common drug testing method, urine testing is not foolproof. With specimen validity testing, we can help ensure the integrity of the test by measuring pH, creatinine and specific gravity (when indicated) and testing for adulterants that may be added to the urine specimen.