Living bioelectronics capture physiological signals and deliver targeted therapy
Electronic devices that seamlessly interface with living tissues hold potential to revolutionize disease diagnosis and treatment. But integrating electronics with the human body is a tricky task, due...
View ArticleSun’s magnetic field may have a surprisingly shallow origin
A new mathematical model indicates that the Sun’s magnetic field originates just 20 000 miles below its surface, contradicting previous theories that point to much deeper origins. The model, developed...
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Deep transfer learning detects six different cancers on PET/CT scans
Six in one Example tumour segmentations predicted by the deep transfer learning approach, for prostate cancer, lung cancer, melanoma, lymphoma, head-and-neck cancer and breast cancer (showing pre- and...
View ArticleExtreme impacts make metals stronger when heated
Heating metals usually makes them softer, but new micro-ballistic impact testing experiments show that if they are deformed extremely quickly during heating, they actually become harder. This...
View ArticleResearchers build 0.05 T MRI scanner that produces diagnostic quality images
Magnetic resonance imaging (MRI) is an essential tool used by radiologists to visualize tissues and diagnose disease, particularly for brain, cardiac, cancer and orthopaedic conditions. However, the...
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Birds save up to 25% of their energy when they follow a leader
A painstaking study of sensor-laden European starlings has confirmed what scientists have long suspected: birds use significantly less energy when they fly behind a leader. The study, which was carried...
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SNMMI ‘Image of the Year’ visualizes the brain as never before
Ultrahigh-resolution images A series of PET images recorded by the NeuroEXPLORER brain PET scanner was chosen by the Society of Nuclear Medicine and Molecular Imaging as its Image of the Year....
View ArticleScientists uncover hidden properties of rare-earth element promethium
For the first time, researchers have experimentally examined the chemistry of the lanthanide element promethium. The investigation was carried out by Alex Ivanov and colleagues at Oak Ridge National...
View ArticleSpeed of sound in quark–gluon plasma is measured at CERN
The speed of sound in a quark–gluon plasma has been measured by observing high-energy collisions between lead nuclei at CERN’s Large Hadron Collider. The work, by the CMS Collaboration, provides a...
View ArticleHawaiian volcano erupted ‘like a stomp rocket’
A series of eruptions at the Hawaiian volcano Kilauea in 2018 may have been driven by a hitherto undescribed mechanism that resembles the “stomp-rocket” toys popular in science demonstrations. While...
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Liquid crystals generate entangled photon pairs
Highly adaptable entanglement: The new technique makes it possible to alter both the flux and the polarization state of the photon pairs simply by changing the orientation of the molecules in the...
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Waffle-shaped solar evaporator delivers durable desalination
Water is a vital resource to society and is one of the main focus areas for the United Nations Sustainable Development Goals. However, around two thirds of the world still doesn’t have regular access...
View ArticleClassical models of gravitational field show flaws close to the Earth
If the Earth was a perfect sphere or ellipsoid, modelling its gravitational field would be easy. But it isn’t, so geoscientists instead use an approximate model based on a so-called Brillouin sphere....
View ArticleShapeshifting organism uses ‘cellular origami’ to extend to 30 times its body...
For the first time, two researchers in the US have observed the intricate folding and unfolding of “cellular origami”. Through detailed observations, Eliott Flaum and Manu Prakash at Stanford...
View ArticleSatellites burning up in the atmosphere may deplete Earth’s ozone layer
The increasing deployment of extensive space-based infrastructure is predicted to triple the number of objects in low-Earth orbit over the next century. But at the end of their service life,...
View ArticleNew titanium:sapphire laser is tiny, low-cost and tuneable
A compact, integrated titanium:sapphire laser that needs only a simple green LED as a pump source has been created by researchers at Stanford University in the US. Their design reduces the cost and...
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Revised calibration curve improves radiocarbon dating of ancient Kyrenia...
The Kyrenia Ship is an ancient merchant vessel that sank off the coast of Cyprus in the 3rd century BCE. Through fresh analysis, a team led by Sturt Manning at Cornell University has placed tighter...
View ArticleSliding ferroelectrics offer fast, fatigue-free switching
Three years ago, researchers from institutions in the US and Israel discovered a new type of ferroelectricity in a material called boron nitride (BN). The team called this new mechanism “slidetronics”...
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New diffractive camera hides images from view
Now you see it: A schematic of the experiment, in which an optical diffractive camera hides information by concealing it within ordinary-looking “dummy” patterns. (Courtesy: A Ozcan) Information...
View ArticleNovel ‘glassy gel’ materials are strong yet stretchable
A new class of materials known as “glassy gels” could find use in areas ranging from batteries to adhesives, thanks to their unique set of physical properties. Meixiang Wang, a post-doctoral fellow...
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