Radiology & Imaging

Best practices for iodinated contrast media shortage

According to ARRS' American Journal of Roentgenology (AJR), to ensure that patients with emergent or life-threatening imaging indications can continue receiving care, radiology practice leaders need to quickly assess their ...

Medical research

Detecting heavy metals in hair samples

South Africa is home to the largest known gold deposit on Earth, the Witwatersrand basin near Johannesburg. When mining the desired precious metal, harmful, toxic and radioactive mining waste comes to the surface as a byproduct. ...

Alzheimer's disease & dementia

FDA OKs marketing of new test to help diagnose Alzheimer's disease

The U.S. Food and Drug Administration granted marketing approval for the Lumipulse G β-Amyloid Ratio (1-42/1-40) test, the first in vitro diagnostic test for early detection of amyloid plaques associated with Alzheimer disease, ...

Oncology & Cancer

Skin cancer in people of color

Dark skin does provide some protection against the sun's ultraviolet rays, but it's a myth that people with dark skin tones are immune to the harmful effects of UV radiation.

Health

Breakthrough in how buildings can promote health and well-being

Having understood the ill-effects if sick building syndrome and the need to better conserve energy by incorporating green features, architects are also utilizing certain elements of an architectural design system shown to ...

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Radiation

In physics, radiation describes any process in which energy emitted by one body travels through a medium or through space, ultimately to be absorbed by another body. Non-physicists often associate the word with ionizing radiation (e.g., as occurring in nuclear weapons, nuclear reactors, and radioactive substances), but it can also refer to electromagnetic radiation (i.e., radio waves, infrared light, visible light, ultraviolet light, and X-rays) which can also be ionizing radiation, to acoustic radiation, or to other more obscure processes. What makes it radiation is that the energy radiates (i.e., it travels outward in straight lines in all directions) from the source. This geometry naturally leads to a system of measurements and physical units that are equally applicable to all types of radiation.

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