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- Earth
Polymer Breakdown: Reaction offers possible way to recycle nylon
A new chemical process offers hope that the thousands of tons of nylon thrown away every year could one day be recycled.
- Health & Medicine
Antibiotics in infancy tied to asthma
Infants who get several courses of antibiotics before their first birthdays are more likely to develop asthma later.
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19853
This article offers two explanations for the correlation of asthma with early infancy antibiotics: a need for the immune system to be trained by early exposure to microbial toxins and a need for normal intestinal microflora in the development of normal immune response.
