Hunt for a Genetic Killer
Researchers have come up empty in their quest to link genetic "copy-number variations" to diseases like breast cancer and diabetes.
Researchers had hoped to find so-called "copy-number variations" -- extra or missing genetic sequences -- in the human genome that might be linked to diseases like breast cancer and diabetes, but have come up empty. CNVs have been linked to some rare diseases, and scientists had hoped to find that they play a role in common diseases as well. The researchers wrote that the bulk of CNVs appear to do nothing.
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Even some teachers suffer from anxiety about math.
I teach people how to teach math, and I've been working in this field for 30 years. Across those decades, I've met many people who suffer from varying degrees of math trauma – a form of debilitating mental shutdown when it comes to doing mathematics.
She met mere mortals with and without the Vatican's approval.
- For centuries, the Virgin Mary has appeared to the faithful, requesting devotion and promising comfort.
- These maps show the geography of Marian apparitions – the handful approved by the Vatican, and many others.
- Historically, Europe is where most apparitions have been reported, but the U.S. is pretty fertile ground too.
The legacy of Felix Dzerzhinsky, who led Soviet secret police in the "Red Terror," still confounds Russia.
- Felix Dzerzhinsky led the Cheka, Soviet Union's first secret police.
- The Cheka was infamous for executing thousands during the Red Terror of 1918.
- The Cheka later became the KGB, the spy organization where Russia's President Putin served for years.
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