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University of California - Irvine


Nitrogen fertilization of soil puts rare plant species at risk, nationwide study determines

A nationwide study by UCI researcher found that nitrogen fertilization can have a devastating impact on rare plant species, causing a decline in diversity and even local extinction. The study analyzed 967 plant species across various ecosystems and identified simple plant traits as predictors of species risk.

SourceUniversity of California - Irvine·JournalProceedings of the National Academy of Sciences·DateApr 18, 2005

Brain activity of men and women during hostile or impulsive acts differs less on nicotine

A recent study found that nicotine can eliminate the differences in brain activity between men and women during hostile or impulsive acts. Brain imaging research conducted by UCI showed that when participants were given nicotine, the brain-metabolism activity was virtually identical for both sexes.

SourceUniversity of California - Irvine·JournalThe International Journal of Neuropsychopharmacology·DateFeb 17, 2005

Contrary to previous findings, smoking is detrimental to patients with Alzheimer's

Researchers at University of California - Irvine find that chronic nicotine exposure increases neurofibrillary tangles in a mouse model of Alzheimer's disease, contradicting previous studies. The study highlights the importance of investigating therapies for both plaque and tangle formations in Alzheimer's.

SourceUniversity of California - Irvine·JournalProceedings of the National Academy of Sciences·DateFeb 8, 2005

Hearing aid signal not clear? Then switch frequency to FM, finds UCI study

A UCI study discovered that enhancing frequency modulation on cochlear implants and hearing aids can significantly boost performance by separating background noise and increasing tonal recognition. This improvement can particularly benefit users of hearing aids, affecting music and certain spoken languages like Mandarin.

SourceUniversity of California - Irvine·JournalProceedings of the National Academy of Sciences·DateJan 25, 2005