Sentences with phrase «using radioactivity»

This was much easier, faster and safer than using radioactivity to label the bases of DNA.

The move marks the first time an Indian university has been completely barred from using radioactivity, and research and teaching there are likely to suffer.

In 1968 Robert Lefkowitz used radioactivity to find the cells» receptors.

Not exact matches

You should also steer clear of radioactive drugs, often used to treat thyroid cancer, as it may take weeks for the radioactivity to clear the breast milk.

Breastfeeding is contraindicated in infants with classic galactosemia (galactose 1 - phosphate uridyltransferase deficiency) 103; mothers who have active untreated tuberculosis disease or are human T - cell lymphotropic virus type I — or II — positive104, 105; mothers who are receiving diagnostic or therapeutic radioactive isotopes or have had exposure to radioactive materials (for as long as there is radioactivity in the milk) 106 — 108; mothers who are receiving antimetabolites or chemotherapeutic agents or a small number of other medications until they clear the milk109, 110; mothers who are using drugs of abuse («street drugs»); and mothers who have herpes simplex lesions on a breast (infant may feed from other breast if clear of lesions).

«Depending on the equipment used, this method could scale to detect radioactivity at distances of at least tens of kilometers and possibly as far as 100 km,» says Professor Choi.

Now researchers may have found a way to combat this waste buildup by using a genetically engineered microbe that resists radioactivity and breaks down chemicals at the sites.

Now, you want me to use them to look for the [radioactivity of the] Earth?»

Very high levels of radioactivity from radon gas have been found in abandoned mines used by prospectors in Southwest England.

«We could never use it for our experiment, which is exactly about keeping background radioactivity to a minimum,» says Ettore Fiorini, a physicist at the University of Milan - Bicocca and coordinator of the CUORE experiment.

The technique relies on the radioactive isotope carbon - 14, whose radioactivity diminishes over time in a predictable manner, allowing researchers to calculate the age of ancient human sites using charcoal from fires or the bones of the prehistoric humans themselves.

Although these depositories usually contain several used fuel assemblies and therefore more total radioactivity than a reactor does, most of the more dangerous radioactive isotopes in the old fuel have already decayed away.

She received training in the safe use of radioactive materials at the Radiation Safety Office at WSU Pullman and said her experiments involve the smallest amount of radioactivity possible to get research results for publication.

Although Southern blot analysis has proved to be a gold standard method in the detection of clonal rearrangement, it has several technical disadvantages, such as time necessary to obtain results, the use of radioactivity, and the susceptibility of the method to various artifacts [5].

Radioactivity in the brain was then measured using positron emission tomography (PET) scans under three different circumstances: after eating pizza (a palatable meal) after consuming a nutritional drink (a non-palatable meal), and after an overnight fast.

Made less than a decade after the horrors of Hiroshima and Nagasaki during World War II, the movie is obsessed with issues such as radioactivity (the Godzilla monster itself is radioactive) and the morality of producing super-weapons (one is finally used to destroy Godzilla, but its maker is reluctant for it to be used).

This resources allows A Level physics students to investigate radioactivity using a spreadsheet, specifcially to help cover specification point 6.4.3 g of the OCR Physics A course which requires students to model radioactive decay using a spreadsheet.

When the Earth was young, our progenitors lived in a much higher radioactivity environment, and adapted to use it to keep the cell repair functions active and tuned.

For the purpose of this Exclusion; i) Utilization of Nuclear weapons of mass destruction means the use of any explosive nuclear weapon or device or the emission, discharge, dispersal, release or escape of fissile material emitting a level of radioactivity capable of causing incapacitating disablement or death amongst people or animals (including in connection with Terrorist Activity).

For the purpose of this Exclusion; ii) Utilization of Nuclear weapons of mass destruction means the use of any explosive nuclear weapon or device or the emission, discharge, dispersal, release or escape of fissile material emitting a level of radioactivity capable of causing incapacitating disablement or death amongst people or animals (including in connection with Terrorist Activity).

The EPA used several factors to calculate which areas were most at risk, including geology, aerial radioactivity, and soil permeability.