radiation contamination marker

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• dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or …   Universalium

• food preservation — Any method by which food is protected against spoilage by oxidation, bacteria, molds, and microorganisms. Traditional methods include dehydration, smoking, salting, controlled fermentation (including pickling), and candying; certain spices have… …   Universalium

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• B-cell chronic lymphocytic leukemia — B cell CLL redirects here. For the gene family, see B cell CLL/lymphoma. Chronic lymphocytic leukemia Classification and external resources Peripheral blood smear showing CLL cells ICD 10 …   Wikipedia

• Plant breeding — is the art and science of changing the genetics of plants in order to produce desired characteristics.[1] Plant breeding can be accomplished through many different techniques ranging from simply selecting plants with desirable characteristics for …   Wikipedia

• Search for extraterrestrial intelligence — The search for extraterrestrial intelligence is sometimes abbreviated as SETI. For other uses, see SETI (disambiguation). Screen shot of the screensaver for SETI@home, a distributed computing project in which volunteers donate idle computer power …   Wikipedia

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