The effect of shielding is taken into account by subtracting a fraction of the gonad dose calculated for the no-shield exposure; under optimal circumstances this subtracted fraction amounts to 95% in male patients and 50% in female patients [7].
Without shielding, exposure at the groin, knee, and feet was 430, 500, and 160 mR/HR.
Toward the end of the meeting, Holbrooke surprised me by asking me to summarize the work I was doing on a political settlement with the Taliban, which he generally tried to shield from exposure even within the government.
The prevailing social logic that insists legal minors be shielded from exposure to substances with potential for abuse means the use of public space and facilities won't be allowed for pot farmers markets anytime in the near future.
Blood was obtained by venipuncture, and collecting tubes were shielded from exposure to light.
Common errors during PTG that affect the image quality include the following: (1) patient preparation errors such as failure to remove metallic detachable items in the area of the head and neck or inappropriate use of a thyroid shield during the exposure; (2) errors in selecting the correct exposure factors; (3) high sensitivity to positioning error.
There is now no shield from forced exposure".
Language and cultural barriers can also shield them from exposure.
HOMEOWNERS and contractors considering renovation projects are grappling with the impact of a new Environmental Protection Agency regulation designed to shield children from exposure to lead paint.
Noting that children are exposed to violent fairy tales from a young age, Judge Posner said that to shield them from exposure to violent images "would leave them unequipped to cope with the world as we know it".
If the Motion Picture Association of America's ratings board advises parents about sex, violence, language and drug use, why should it not also shield children from exposure to a lethal (if legal) product that hooks, sickens and kills hundreds of thousands of people a year?
