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Discovery could lead to new catalyst design to reduce nitrogen oxides in diesel exhaust

August 17, 2017- Researchers have discovered a new reaction mechanism that could be used to improve catalyst designs for pollution control systems to further reduce emissions of smog-causing nitrogen oxides in diesel exhaust. The research focuses on a type of catalyst called zeolites, workhorses in petroleum and chemical refineries and in emission-control systems for diesel engines.New catalyst designs are needed to reduce the emission of nitrogen oxides, or NOx, because current technologies only work well at relatively high temperatures.


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A look inside Feynman’s calculus notebook

One of the most unusual artifacts at the Niels Bohr Library & Archives in College Park, Maryland, is a small green notebook once owned by Richard Feynman. It contains handwritten notes he compiled as a high school student in the early 1930s, on a book called Calculus for the Practical Man.


Nanoparticles Boost T-Cells to Fight Leukemia

A cancer research lab designed a process to treat leukemia by reprogramming cells in the immune system with genes on nanoscale biodegradable particles. The team from Fred Hutchinson Cancer Research Center in Seattle describes its discovery and tests with lab mice in yesterday’s issue of the journal Nature Nanotechnology.


Crispr-Based Diagnostics System Designed

A bioengineering team from Harvard University and Massachusetts Institute of Technology designed simple, inexpensive diagnostics tools to detect infectious diseases, based on Crispr, an emerging genome-editing technology. A report of the technology appears in this week’s issue of the journal Science.


Scientists aim to reach the Earth's mantle with an undersea drill

We'd know a lot more about what's under the Earth's crust if Jules Verne's Icelandic volcano weren't but a figment of his imagination. Japan's Agency for Marine-Earth Science and Technology's (JAMSTEC) largest drilling ship called "Chikyu" is very real, though, and a group of international researchers plan to use it to drill into the Earth's mantle...

Astronaut Notices Crack in Space Station Window, Takes a Picture

An astronaut looked out the window of the Cupola—an observation nook on the International Space Station (ISS)—and saw a crack in the glass. Imagine floating in space in a pressurized spacecraft and seeing a crack in the thing keeping you safe from the empty void outside.


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