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Science News for November 13, 2015


3-D printing aids in understanding food enjoyment

Researchers used a 3D printed model of the human airway to study how airflow affects the transfer of volatile particles from the back of the mouth to the nasal cavity. They found that slow, steady breathing optimizes the delivery of these particles, leading to better food enjoyment.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateNov 13, 2015

Not so happy old age?

A recent study published in Psychology and Aging suggests that depressive symptoms continue to increase throughout old age, contrary to previous studies which only examined the issue up to age 85. The research found that levels of physical impairment, medical conditions, and death's approach significantly contribute to these increases.

SourceUniversity of Bradford·JournalPsychology and Aging·DateNov 13, 2015

Isle of Skye fossil makes three species one

Researchers from the University of Oxford discovered a 170-million-year-old fossil on the Isle of Skye that challenges the existence of three previously recognized species. The find reveals that the three species are actually one, with differences in tooth shape being present in the single lower jaw found on the Isle of Skye.

SourceUniversity of Oxford·JournalPalaeontology·DateNov 13, 2015