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Engineers create rubbery ‘smart’ material to treat open wounds, infections and cancer

Professor James H. Henderson and Ph.D. candidate Shelby L. Buffington of Syracuse University display the new shape memory polymer in their lab. Credit: Syracuse University Researchers in the Syracuse University College of Engineering and Computer Science have developed a material -- a new kind of shape memory polymer (SMP) -- that could have major implications…

New buzz around insect DNA analysis and biodiversity estimates

The researchers cross a dry stream bed on the remote island of Hauturu, in search of samples. Photo courtesy of Andrew Dopheide. Credit: Photo courtesy of Andrew Dopheide In the face of declining numbers of insects across the globe, scientists continue to expand our knowledge about invertebrate organisms and their biodiversity across the globe. Insects…

Why charismatic, introduced species are so difficult to manage

Horses have been integral to human life throughout history, and hold widespread cultural significance. But horses are not native (at least in the modern era) to many of the places where they currently roam. Credit: Photo courtesy of Steve Petersen Introduced and invasive species can present big problems, particularly when those species are charismatic, finds…

Ancient rocks provide clues to Earth’s early history

The 2.5 billion-year-old Mt. McRae Shale from Western Australia was analyzed for thallium and molybdenum isotope compositions, revealing a pattern that indicates manganese oxide minerals were being buried over large regions of the ancient sea floor. For this burial to occur, O2 needed to have been present all the way down to the sea floor…

Tinier and less power-hungry quantum atomic clock push toward intelligent IoT

A newly developed compact ULPACs, mounted on small satellites, automobiles, and smartphones, accelerate the realization of seamless and on-demand mobile communication networks. Credit: Kenichi Okada Scientists at Tokyo Tech, Ricoh co. and The National Institute of Advanced Industrial Science and Technology have developed an ultra-low-power atomic clock (ULPAC) for small satellites to enable future communication…

Membraneless protocells could provide clues to formation of early life

Membraneless protocells -- called complex coacervates -- can bring together molecules of RNA allowing the RNAs to perform certain reactions, an important step in the origin of life on Earth. The Image shows droplets of complex coacervates as seen under a microscope. The inset shows RNA molecules (cyan) are highly concentrated inside the droplets compared…

In VR boys learn best when the teacher is a drone — girls lean...

Even when students are taught via simulations and VR-glasses the teacher is an important figure: Girls learn best, when the virtual teacher is a young female role model, shows research from Virtual Learning Lab at the University of Copenhagen. Credit: University of Copenhagen Few years from now, students in schools all over the world will…

A quantum magnet with a topological twist

Researchers explored a material that has an internal structure, shown in 3D in left panel, that consists of triangles and hexagons arranged in a pattern similar to that of a Japanese kagome basket. Credit: Hasan, et. al, Princeton University Taking their name from an intricate Japanese basket pattern, kagome magnets are thought to have electronic…

Fruit fly wing research reshapes understanding of how organs form

This image shows a developing Drosophila fruit fly wing. The colors are marked clones of cells and the shapes of the clones show how growth is organized during development. Credit: Zhenru Zhou How do fruit flies grow their wings? Rutgers scientists discovered a surprising answer that could one day help diagnose and treat human genetic…

Interactive surfaces enter a whole new dimension of flexibility

(left) System Overview, (right) Example of Displaying the Letter "S." Credit: Osaka University An "interactive surface" refers to an interface whose input and output share a common surface that can be manipulated intuitively with the fingers. However, ordinary multi-touch displays, e.g., liquid crystal displays (LCD), can only provide two-dimensional information, limiting expressions and interactions with…

How Capsella followed its lonely heart

Capsella -- microscope image of gene expression analysis. Credit: Yang Dong The Brassicaceae plant family boasts a stunning diversity of fruit shapes. But even in this cosmopolitan company the heart-shaped seed pods of the Capsella genus stand out. An estimated 8 million years ago Capsella embarked on a different evolutionary pathway from its close relatives…

‘Incredibly’ diverse microbial community high in Yellowstone

Dan Colman, assistant research professor in the Department of Microbiology and Immunology at Montana State University, takes samples of microbial cultures Wednesday, Feb. 13, 2019, at MSU in Bozeman, Mont. Colman and Eric Boyd were recently published in the scientific journal Nature Communications regarding their research on how the mixing of surface and subsurface fluids…

Anemic galaxy reveals deficiencies in ultra-diffuse galaxy formation theory

DGSAT I (left), an ultra-diffuse galaxy (UDG), is shown next to a normal spiral galaxy (right) for comparison. Both are similar in size, but UDGs like DGSAT I have so few stars, you can see right through them, to the galaxies in the background. Credit: A. ROMANOWSKY/UCO/D. MARTINEZ-DELGADO/ARI A team of astronomers led by the…

ADHD drug Ritalin has no effect on primate prefrontal cortex

Location of chronically implanted multielectrode Utah array within the left caudal lateral prefrontal cortex. The shaded pink area roughly represents area 8A in the macaque brain. The blue square represents implant location. P: principal sulcus. AS: arcuate sulcus superior. AI: arcuate sulcus inferior. Credit: Tremblay et al., eNeuro (2019) In contrast to studies of mice…

New findings shed light on origin of upright walking in human ancestors

This is a fossil hominin talus from site GWM67 (2005) at the time of its discovery. Credit: Case Western Reserve University School of Medicine The oldest distinguishing feature between humans and our ape cousins is our ability to walk on two legs -- a trait known as bipedalism. Among mammals, only humans and our ancestors…

Massive collision in the planetary system Kepler 107

The figure shows one frame from the middle of a hydrodynamical simulation of a high-speed head-on collision between two 10 Earth-mass planets. The temperature range of the material is represented by four colors grey, orange, yellow and red, where grey is the coolest and red is the hottest. Such collisions eject a large amount of…

Iguana-sized dinosaur cousin discovered in Antarctica

A slab containing fossils of Antarctanax. Credit: Copyright Brandon Peecook, Field Museum Antarctica wasn't always a frozen wasteland -- 250 million years ago, it was covered in forests and rivers, and the temperature rarely dipped below freezing. It was also home to diverse wildlife, including early relatives of the dinosaurs. Scientists have just discovered the…

Detailed maps of thousands of nearby galaxies

The MaNGA data set will eventually include more than 10,000 nearby galaxies, and the survey is already more than half way toward that goal. Credit: SDSS/MaNGA collaboration The latest data release from the Sloan Digital Sky Survey (SDSS) includes observations revealing the internal structure and composition of nearly 5,000 nearby galaxies observed during the first…

Can a flowing liquid-like material maintain its structural order like crystals?

Chiral crystal-like droplets displaying unidirectional rotational sliding. Credit: Copyright Tokyo Tech Studying the crystalline structures of organic materials has enabled significant advances in both technology and our scientific understanding of the material world. Recently, a research team from Tokyo Tech, including Professor Takanori Fukushima, developed a new organic material with surprising and unprecedented properties. They…

500-million-year old worm ‘superhighway’ discovered in Canada

These are worm tunnels (labelled) visible in small section of rock. Credit: Professor Brian Pratt, University of Saskatchewan Prehistoric worms populated the sea bed 500 million years ago -- evidence that life was active in an environment thought uninhabitable until now, research by the University of Saskatchewan (USask) shows. The sea bed in the deep…

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