Science

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New advancements in 3-D designs for neural tissue engineering

It is well known that neurological diseases and injuries pose some of the greatest challenges in modern medicine, with few if any options for effectively treating such diagnoses, but recent work suggests a unique approach for reconstructing damaged neural tissue. In an article published in the journal Neural Regeneration Research, several new designs for 3D tissue constructs are described for using stem cells grown on nanofiber scaffolding within a supportive hydrogel.

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These are examples of 3-D neural tissue construct designs. 3D tissue and organoid models will provide incredible new tools and insights into neurological injury and disease, as well as great potential for regenerating functional neural tissue from stem cells.

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MIPT researchers put safety of magic anti-cancer bullet to test

A group of MIPT researchers together with their colleagues from Moscow, Nizhny Novgorod, Australia and the Netherlands have carried out the first systematic study analyzing the safety of so-called upconversion nanoparticles that may be used to treat skin cancer and other skin diseases. This study is one of the most important steps on the path to new, safe and effective methods to diagnose and treat cancer.

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This image shows fluorescent nanoparticles in cells.

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Dusty substructure in a galaxy far far away

Stoffige substructuur in ver sterrenstelsel onthuld

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Proton beams are back in the LHC

After two years of intense maintenance and consolidation, and several months of preparation for restart, the Large Hadron Collider, the most powerful particle accelerator in the world, is back in operation. Today at 10.41am, a proton beam was back in the 27-kilometer ring, followed at 12.27pm by a second beam rotating in the opposite direction. These beams circulated at their injection energy of 450 GeV. Over the coming days, operators will check all systems before increasing energy of the beams.

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Optics, nanotechnology combined to create low-cost sensor for gases

Engineers have combined innovative optical technology with nanocomposite thin-films to create a new type of sensor that is inexpensive, fast, highly sensitive and able to detect and analyze a wide range of gases.

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Camera chip provides superfine 3-D resolution: New imaging technology fits on a tiny chip and, from a distance, can form a high-resolution 3-dimensional image of an object on the scale of micrometers

Imagine you need to have an almost exact copy of an object. Now imagine that you can just pull your smartphone out of your pocket, take a snapshot with its integrated 3-D imager, send it to your 3-D printer, and within minutes you have reproduced a replica accurate to within microns of the original object. This feat may soon be possible because of a tiny new, tiny high-resolution 3-D imager developed at Caltech.

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The micrometer-resolution image, taken from roughly half a meter (1.5 feet) away, shows the height of a US penny at various points.

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Team Returning Orbiter to Duty After Computer Swap

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Artist concept of Mars Reconnaissance Orbiter.

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Frustrated magnets -- new experiment reveals clues to their discontent

An experiment conducted by Princeton researchers has revealed an unlikely behavior in a class of materials called frustrated magnets, addressing a long-debated question about the nature of these discontented quantum materials.

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Graduate student Max Hirschberger lowers the assembled experimental setup into a high-field magnet system, capable of creating fields as strong as 250,000 times the earth's magnetic field.

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Frustrated magnets -- new experiment reveals clues to their discontent

An experiment conducted by Princeton researchers has revealed an unlikely behavior in a class of materials called frustrated magnets, addressing a long-debated question about the nature of these discontented quantum materials.

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Graduate student Max Hirschberger lowers the assembled experimental setup into a high-field magnet system, capable of creating fields as strong as 250,000 times the earth's magnetic field.

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Hubble and Chandra Discover Dark Matter Is Not as Sticky as Once Thought

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This collage shows images of six different galaxy clusters taken with NASA's Hubble Space Telescope and Chandra X-ray Observatory. The clusters were observed in a study of how dark matter in clusters of galaxies behaves when the clusters collide. Seventy-two large cluster collisions were studied in total.
Using visible-light images from Hubble, the team was able to map the post-collision distribution of stars and also of the dark matter (colored in blue), which was traced through its gravitational lensing effects on background light. Chandra was used to see the X-ray emission from impacted gas (pink).
The team determined that dark matter interacts with itself and everything else even less than previously thought.