Nevertheless many structures exhibit a non-linear behaviour even at low levels of external excitation.
A major new study has linked air pollution to increased mental illness in children, even at low levels of pollution.
Two recent scientific studies also point to these pesticides as harmful to bees, even at low levels.
Even at low levels, the metal can cause devastating neurological damage in young children, including a lowered I.Q.
But scientists at agencies like the Geological Survey say it is important to understand the prevalence and actions of these compounds, even at low levels.
They believe that, even at low levels, the chemicals cause neurological damage to insects, undermining their resilience and leaving them less likely to breed successfully.
Lead exposure, even at low levels, is linked to various neurological impacts, including nerve damage and lower IQ, as well as reproductive problems, such as decreased sperm count.
An expert report by the council said lead toxicity can damage almost every organ and is especially dangerous to young children, even at low levels.
McAvoy, with his thin, scruffy beard and melancholy eyes, his theatre-trained voice, solid and distinct even at low levels, makes romantic desperation attractive.
The prospect that such policies will be able to keep the economic engines humming, even at low levels, looks increasingly dim.
Still, even at low levels, trans fats do raise bad cholesterol, and no matter how you slice it, that's bad news.
