Nano-Velco Nabs Cancer Cells
Researchers have developed a device inspired by Velcro that "grabs" tumor cells circulating in a cancer victim's blood stream. The device uses nano-scale technology to filter blood.
A new nanotechnology tool allows for a more effective biopsy which scientists believe will aid in earlier cancer detection. "The device works at the nanoscale level to efficiently identify free-floating cancer cells and could aid both cancer research and treatment, scientists say. Circulating tumor cells, or CTCs, play a crucial role in cancer metastasis, which is the most common cause of cancer-related death in patients with solid tumors. Metastasis occurs when marauding CTCs leave the primary tumor site and travel through the blood stream to set up colonies in other parts of the body."
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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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