Weird World 

Pesticides: What happens if we run out of options?

To slow the evolutionary progression of weeds and insect pests gaining resistance to herbicides and pesticides, policymakers should provide resources for large-scale, landscape-level studies of a number of promising but untested approaches for slowing pest evolution. Such landscape studies are now more feasible because of new genomic and technological innovations that could be used to compare the efficacy of strategies for preventing weed and insect resistance.

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Brain abnormality indicates general risk for mental illness

A new study by researchers at Duke University reports an abnormality in visual regions of the brain that is associated with a person’s general risk for mental illness. The findings, published in Biological Psychiatry, indicate a signature abnormality shared between common forms of mental illness, which could help clinicians assess a patient’s general risk for developing a mental illness. The signature abnormality was present in participants involved in the study who already had a higher risk of mental illness. This was characterized by a reduced efficiency between visual areas and brain networks important for integrating sensory information and suppressing distracting information.

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