World Science: Poor people found to get fewer painkillers from ER
* Poor people get fewer painkillers from ER,
As doctors try to discourage narcotics abuse,
statistics suggest strong, opioid pain medications
are preferentially prescribed to the well-heeled.
* Ball-shaped robot debuts:
A new robot that takes the form of a rolling ball has
been tested and seems to work fine, researchers say.
* Particle may combine nature's building blocks
in new way:
A newfound particle may consist of four quarks --
fundamental units previously thought to group only
in twos and threes.
* Scans might reveal even past brain activity:
Research hints that scientists could probe the brain
and uncover the history of past experiences.
* Study confirms contamination near some
Stray gases seep into the drinking water in some
areas where a controversial energy extraction method
is used, research finds.
* 9/11 stress linked to resurgence in smoking:
The Sept. 11, 2001 attacks led about a million
former smokers across the United States to resume
the habit, a study suggests.
* Applause spreads like "disease":
People pick up the clapping "infection" by hearing
the volume of applause, rather than seeing their
neighbors clapping, a study finds.
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