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Exposures

Exposure

(Science: radiobiology) a quantitative measure of x or gamma radiation at a certain place, based on its ability to produce ionisation in air. The former special unit of exposure was the roentgen (R). 1R = 2.58 x 10-4 C/kg. In the international system (si unit), the special unit is coulomb per kilogram. (exposure also is frequently used as a synonym for irradiation).


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Re: erythroblastosis fetalis

... free of the placenta mixes exposes the mother to the fetus' blood pretty reliably. There are also many instances of what would otherwise be minor exposures during pregnancy, as well as cases of maternal rejection of rh-positive fetuses in a first pregnancy.

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by Darby
Sat Mar 08, 2008 1:48 am
 
Forum: Human Biology
Topic: erythroblastosis fetalis
Replies: 75
Views: 13418

Antibodies

... quick); unless the organisms can evade those general defenses, they don't last long enough to deal with antibodies, which usually react to later exposures.

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by Darby
Sun Jun 10, 2007 5:48 pm
 
Forum: Cell Biology
Topic: Antibodies
Replies: 4
Views: 848

The Fiber Disease

... * the high potential diversity of nanomaterials; * their wide and expanding array of potential and actual uses; * the potential for releases or exposures from activities occurring over their full lifecycle; and * the rapidly evolving nature of nanotechnology? • Most jurisdictions currently address ...

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by Nadas Moksha
Sun Dec 10, 2006 10:50 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 748648

The Fiber Disease

... in human endothelial cells: Molecular mechanism for cancer- and blood-brain barrier-related effects Abstract We have examined whether non-thermal exposures of cultures of the human endothelial cell line EA.hy926 to 900 MHz GSM mobile phone microwave radiation could activate stress response. Results ...

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by London
Fri Dec 01, 2006 11:52 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 748648

The Fiber Disease

... the inciting substance not as being harmful, but as actually producing an energizing "high." Therefore, he continues to acquire more exposures. After a period of time, however, be it minutes, months, or years, his body’s defenses are adversely overstimulated and he develops disabling ...

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by London
Sun Nov 05, 2006 5:05 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 748648
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