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Latest Pteris Stories

2011-06-24 12:51:39

Formaldehyde is a major contaminant of indoor air, originating from particle board, carpet, window coverings, paper products, tobacco smoke, and other sources.

2010-06-11 13:21:04

Isolating a gene that allows a type of fern to tolerate high levels of arsenic, Purdue University researchers hope to use the finding to create plants that can clean up soils and waters contaminated by the toxic metal.


Word of the Day
logocentrism
  • The analysis of literature, focusing on the words and grammar to the exclusion of context or literary merit.
The word 'logocentrism' is a blend of logo- +‎ centrism.
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