The dye tracer used in the model has no actual physical resemblance to true oil.
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More of the tracer was floating around unbound, suggesting the receptor sites were occupied by the endorphins.
His unit was caught in what Mr Ellicock describes as a Vietnam-style exchange of red and green tracer bullets.
"Everything that is alive has been labeled with this elevated tracer, " says Buchholz.
The touch tracer display for remote system control is located directly behind the shift lever for maximum comfort and ease of operation.
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The isotope, known as a medical tracer, is made outside the United States by a complicated process requiring highly enriched uranium from nuclear reactors.
The researchers knew this because they had introduced a radioactive tracer that selectively binds to the same type of receptor in the brain, the mu-opioid variety, as the endorphins.
They combined conventional PET imaging, which requires a radioactive tracer to highlight the brain's metabolic activity, with other recent advances in the genetic engineering of brain cells that allows them to target specific brain circuits in lab animals.
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The notable internal hardware consists of an ASUS P8Z77-I Deluxe motherboard at its heart, a 2GB EVGA GeForce GTX 680, a 3rd generation Intel Core i7 clocked at 3.50GHz, and 8GB of Crucial Ballistix Tracer RAM (with hypnotic green LEDs).
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In these United States, honest, hard-working Americans aren't asking for much -- all they really want out of life is the right to bear 7.62mm tracer ammunition, the right to patronize 24-hour burger joints, and the inalienable, immutable right to a 3G femtocell in every home.
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The dashboard is divided into two distinct zones: an upper, Display Zone, with a multi-display screen located at an ideal distance for at-a-glance viewing, and a lower, Operation Zone, which allows access to the uniquely designed shift lever and an innovative touch tracer display for remote system control.
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"The vast majority of women are capable of hearing this information and not freaking out, " says the Mayo Clinic's Dr. Rhodes, who is studying a new technology, Molecular Breast Imaging, that uses a tracer substance that makes cancer cells highly visible, and which she says shows promise in detecting cancers in dense breast tissue.
One of the experiments involves erecting three-metre high tents over a section of the crops, allowing the team to expose the plants to a "carbon tracer" - a form of carbon that is different from atmospheric carbon so it is possible for the researchers to track its movements from the surrounding air, through the plants and into the soil.
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