Spin-torque oscillators (STOs) are nanoscale devices that generate microwaves using changes in magnetic field direction, but those produced by any individual device are too weak for practical applications. Physicists have ...
General Physics
Aug 07, 2019
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4
Recent studies have revealed that within cells of both yeast and bacteria, the rates of diffusion of RNA proteins—complex molecules that convey important information throughout the cell—are distributed in characteristic ...
General Physics
Aug 07, 2019
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4
The properties of many materials can change permanently when they are pushed beyond their limits. When a given material is subjected to a force, or 'load', which is stronger than a certain limit, it can become so deformed ...
Condensed Matter
Jul 31, 2019
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6
The first rule on the stock market is to buy low and sell high. Economists are well aware of how this behaviour changes the prices of stocks, but in reality, trades alone don't tell the whole story. Parties like banks and ...
Economics & Business
Jul 18, 2019
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4
Studying the brain involves measuring the activity of billions of individual brain cells called neurons. Consequently, many brain measurement techniques produce data that is averaged to reflect the activity of large populations ...
General Physics
May 28, 2019
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24
Unfortunately, cancer isn't simply a single disease, and some types, like pancreas, brain or liver tumours, are still difficult to treat with chemotherapy, radiation therapy or surgery, leading to low survival rates for patients. ...
Bio & Medicine
Apr 04, 2019
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123
Understanding stock market returns hinges on understanding their volatility. Two simple but competing models have been dominant for decades: the Heston model, introduced in 1993, and the multiplicative model, which dates ...
General Physics
Apr 02, 2019
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10
A chameleon can flexibly change its colour to match its surroundings. And a similar phenomenon can now be seen in a new class of smart materials called metamaterials. The trouble is that these metamaterials lack the ability ...
Optics & Photonics
Apr 02, 2019
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6
A new study proposes a new way of ranking universities, using a more balanced cultural view and based on 24 international editions of Wikipedia
General Physics
Jan 28, 2019
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5
Extremes of temperature, rain, exposure to corrosive substances—all of these environmental factors contribute to the degradation of concrete. Specifically, a gas present in our environment, called hydrogen sulphide, turns ...
Engineering
Dec 19, 2018
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