Sentences with phrase «used radioactive substance»

Not exact matches

Securing dangerous or controlled substances: Businesses in a wide range of industries use biometric devices — with hand - readers being a particularly popular option — to help monitor access to toxic chemicals, radioactive waste, narcotic drugs and other potentially hazardous materials.

FAIR SHAKE The word in Las Vegas last week was that the «short, chubby man from Connecticut» who made 50 straight passes at a Dunes crap table not long ago (SCORECARD, Oct. 30) and collected $ 25,000 might have been using dice coated with cobalt - 60 — a radioactive substance — along with a small electronic device that would control their fall.

Using a small amount of a radioactive substance as a tracer, the scientists focused on the brain's mu - opioid system in which chemicals called endogenous opioids bind to receptors and hinder the spread of pain messages in the brain.

They sent soil samples for DNA testing, looking for matches with particular genes known to be found in microbes and fungi; they tried to stimulate microbial growth on a wide variety of substances and then count the cells produced; and they used highly sensitive radiorespiration activity assays, which involve feeding the soil microorganisms a food source which has been labelled with radioactive carbon, which can then be used to detect if the microorganisms are active.

WE ARE used to radioactive substances having a half - life, but DNA?

Scientific research costs lots of money because all he many different experimental operations require use of special supplies and instruments, salaries for specially trained research workers, specified safety measures for certain specimens, specified measures for use and disposal of radioactive materials and toxic substances, and, many other adjunctive expenses.

During the mid-1980s Dupont, a competitor of Amersham, invented a substance, marketed as «Cardiolite», for imaging the heart using radioactive isotope emissions.

A radiologist is a person who makes use of the radioactive substances and X-rays to diagnose diseases in the human body.