Radiological

Greenleaf Health of the District named Heather Rosecrans, former director of the 510 (k) pre-market notification staff at the Food and Drug Administration's Center for Devices and Radiological Health, senior regulatory adviser.

Appointments for the week of Oct. 4

Greenleaf Health of the District named Heather Rosecrans, former director of the 510 (k) pre-market notification staff at the Food and Drug Administration's Center for Devices and Radiological Health, senior regulatory adviser.

Appointments for the week of Oct. 4

The fire was later put out, but investors remained uneasy after local media reports said the nuclear safety agency will raise the crisis level of the crippled power plant from 5 to 7 on the International Nuclear and Radiological Event Scale, the worst possible level.

Most Asian Markets Lower; Fresh Nuclear Concerns Dent Tokyo

For example, David Brenner, head of Columbia University's Center for Radiological Research, asserts that X-ray scanners may emit 20 times more radiation than previously thought and may pose increased cancer risks.

John W. Whitehead: Michael Roberts: One Man Against the Surveillance State

That well exceeds the Level 7 threshold of the International Nuclear and Radiological Event Scale of "several tens of thousands of terabecquerels" of iodine-131.

Japan regulators raise severity of nuclear accident

The Nuclear Energy Institute said that the incident at Fukushima Daiichi had been given a rating of 4 on its 7-point International Nuclear and Radiological Event Scale, lower than the 5 earned by the 1979 Three Mile Island incident in Pennsylvania and the 7 earned by the 1986 Chernobyl disaster.

Japanese nuclear plants' operator scrambles to avert meltdowns

A chest X-ray typically exposes a patient to a radiation dose of about 100 microsieverts, according to the Radiological Society of North America.

Radioactive Contamination Levels Drop in Japan

Because of the pitfalls with statistical significance, when the FDA analyzes the safety of a drug or device, "we certainly don't make decisions based on a single number or a single statistical test," says William Maisel, the chief scientist for the agency's Center for Devices and Radiological Health.

Making a Stat Less Significant

The Nuclear Energy Institute said that the incident at Fukushima Daiichi had been given a rating of 4 on its 7-point International Nuclear and Radiological Event Scale, lower than the 5 earned by the 1979 Three Mile Island incident in Pennsylvania and the 7 earned by the 1986 Chernobyl disaster.

Japanese nuclear plants' operator scrambles to avert meltdowns

For example, David Brenner, head of Columbia University's Center for Radiological Research, asserts that X-ray scanners may emit 20 times more radiation than previously thought and may pose increased cancer risks.

John W. Whitehead: Michael Roberts: One Man Against the Surveillance State