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Science News for May 20, 1999


Children Benefit Most From Sun Safety Interventions

A new study published in Health Education & Behavior found that children benefit most from sun safety interventions due to high lifetime exposure during childhood. Parents' sun safety habits strongly influence their children's behaviors, while recreation programs' policies are not significantly associated with parents' practices.

SourceCenter for Advancing Health·JournalHealth Education & Behavior·DateMay 20, 1999

'Energy Density' -- Not Fat -- Is Key To Feeling Full While Managing Weight

A Penn State study suggests that eating low-energy-density meals, which contain fewer calories per ounce and are rich in fruits, vegetables, or grains, can help individuals manage their weight while still feeling full and satisfied. The study found that the energy density of food, rather than fat content, plays a key role in satiety.

SourcePenn State·JournalAmerican Journal of Clinical Nutrition·DateMay 20, 1999

Porous Silicon Lights Way For New Analytical Devices

Researchers at Purdue University have developed a technique that combines porous silicon with mass spectrometry to streamline biochemical analyses. The technique, called desorption ionization on silicon (DIOS), allows for the simultaneous testing of large numbers of compounds in a fraction of the time required by current methods.

SourcePurdue University·JournalNature·DateMay 20, 1999