Friday Five Roundup: From Teeth Genes to Mobile Apps, and Password Changes

Science Daily

Pufferfish and Humans Share the Same Genes for Teeth

Human teeth evolved from the same genes that make the teeth of puffer fish according to new research findings from the University of Sheffield. This research, say investigators, could be used to help address tooth loss in humans.

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The US standards office wants to do away with periodic password changes

New guidelines from the US National Institute of Standards and Technology (NIST), expected to be released this summer, suggest that periodic password changes are no longer necessary. The report also recommends changes to several other password policies that have become antiquated in the modern computing environment.

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The New York Times

F.D.A. Warns of Faulty Lead Testing in Children and Mothers

Some blood tests used to check for lead poisoning in children and women since 2014 may have wrongly indicated that children were safe from lead exposure, federal health officials warned Wednesday. Children under 6 and pregnant and nursing women may need to be retested.

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Seizing Your Mobile App Strategy — What Trendsetters Can Teach Us

70% of mobile app users uninstall brand-name apps within three days of installing them! So just because your mobile app has a high download rate, does not mean you’re in the clear. Find out what mobile app users expect to get out of your app, and how you can improve (or create) your business’ mobile app strategy.

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A simple facial cue that hints at whether you're part of the 1%

In the US, the growing gap between the rich and the poor is now so entrenched that it shows up just about everywhere, even in something as simple as a smile. A large portion of American spending on dental work is now cosmetic procedures (paywall) for the wealthy—including extravagant splurges on $1,000-a-pop veneers, “gum contouring,” and even $80,000 dental makeovers (paywall) to achieve the flash of perfection when a patient cracks that Hollywood smile.

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