Science News

Science News

  • Hiring foreign nurses does not hurt US nursing jobs, study shows
    on December 4, 2020 at 3:30 pm

    An aging U.S. population is rapidly increasing the demand for nursing care. The number of U.S. citizens aged 65 and over is expected to almost double from 43.1 million in 2012 to 87.5 million by 2050, while the workforce is shrinking. The COVID-19 pandemic has further exacerbated the need for health care professionals. […]

  • Mass incarceration results in significant increases in industrial emissions, study finds
    on December 4, 2020 at 3:30 pm

    Mass incarceration is as much an environmental problem as it is a social one, according to a new Portland State University study that finds increases in incarceration are significantly associated with increases in industrial emissions. […]

  • Chinese photonic quantum computer demonstrates quantum supremacy
    on December 4, 2020 at 3:30 pm

    A team of researchers affiliated with several institutions in China has built and tested a photonic quantum computer that demonstrates quantum supremacy. In their paper published in the journal Science, the group describes their computer, which they call Jiuzhang, and how well it performed while conducting Gaussian boson sampling. […]

  • California winds ease but fire danger remains high
    on December 4, 2020 at 3:27 pm

    Powerful winds that pushed wildfires through Southern California, burning several homes and injuring two firefighters, began easing but forecasters warned that the fire danger remained Friday. […]

  • Video: Gaia's stellar motion for the next 1.6 million years
    on December 4, 2020 at 3:20 pm

    The stars are constantly moving across the sky. Known as proper motion, this motion is imperceptible to the unaided eye but is being measured with increasing precision by Gaia. This animation shows the proper motions of 40 000 stars, all located within 100 parsecs (326 light years) of the Solar System. The animation begins with the stars in their current positions; the brightness of each dot representing the brightness of the star it represents. […]

  • Simplifying long-range quantum interactions in many-body systems
    on December 4, 2020 at 3:20 pm

    Calculations for certain quantum systems whose parts interact over long distances will be much easier to perform thanks to the work of a RIKEN physicist and his collaborator, who have extended an assumption that holds for materials with short-range interactions. […]

  • Making green drugs: Tapping into nature without tapping it out
    on December 4, 2020 at 3:20 pm

    Roland Kersten made his way down the aisle of the local supermarket, selecting different varieties of potato. This was one of the easier collection trips that a researcher in Whitehead Institute Member Jing-Ke Weng's lab has made to gather different plant species for investigation. Kersten, then a postdoc in Weng's lab, has also collected specimens on the coasts of California and Panama. Lab members regularly track down different species growing throughout Harvard University's sprawling Arnold […]

  • DNA nanobots build themselves: How can we help them grow the right way?
    on December 4, 2020 at 3:19 pm

    UNSW researchers have overcome a major design challenge on the path to controlling the dimensions of so-called DNA nanobots—structures that assemble themselves from DNA components. […]

  • Scientific literature on oxidative reactions analysed
    on December 4, 2020 at 3:17 pm

    The ASYMCAT research group, from the Department of Organic Chemistry of the University of Valencia (UV), has gathered in a review article all the information on asymmetric Mannich oxidative reactions, a set of chemical reactions that make it possible to obtain relevant compounds in the design of a broad set of drugs. The review, which has been published in the journal Advanced Synthesis & Catalysis (ASC), describes three methodologies used to transform amines—a type of organic […]

  • Molecules convert visible light into ultraviolet light with record efficiency
    on December 4, 2020 at 3:17 pm

    Light-powered processes from hydrogen production to air purification could see a boost in performance under ambient light thanks to a new material system that can directly convert visible light into ultraviolet light with an efficiency that doubles previous records. […]

  • Electrons falling flat: Germanium falls into a 2-D arrangement on zirconium diboride
    on December 4, 2020 at 3:11 pm

    Scientists have recently revealed, both theoretically and experimentally, that germanium atoms can arrange themselves into a 2-D "bi-triangular" lattice on zirconium diboride thin films grown on germanium single crystals to form a "flat band material" with an embedded "kagome" lattice. The result provides experimental support to a theoretical prediction of flat bands emerging from trivial atomic geometry and indicates the possibility of their existence in many more materials. […]

  • Biological diversity evokes human happiness
    on December 4, 2020 at 2:54 pm

    Under the current pandemic conditions, activities out in nature are a popular pastime. The beneficial effects of a diverse nature on people's mental health have already been documented by studies on a smaller scale. Scientists of the Senckenberg Gesellschaft für Naturforschung, the iDiv, and the University of Kiel now examined for the first time whether a diverse nature also increases human well-being on a Europe- wide scale. […]

  • California appears to be in for a dry, warm winter
    on December 4, 2020 at 2:54 pm

    December typically marks the onset of winter, but you'd never know it by looking at California. […]

  • Anti-gravity: How a boat can float upside down
    on December 4, 2020 at 2:52 pm

    Here on Earth, everything is subject to gravity—it makes objects fall to the ground and rivers flow from higher ground to the sea. We know what would happen without it, thanks to images of astronauts floating around their spaceship. But could we design an anti-gravity machine, something that would make objects fall upwards, oceans levitate, and boats float upside down? […]

  • Researchers observe what could be the first hints of dark bosons
    on December 4, 2020 at 2:30 pm

    Extremely light and weakly interacting particles may play a crucial role in cosmology and in the ongoing search for dark matter. Unfortunately, however, these particles have so far proved very difficult to detect using existing high-energy colliders. Researchers worldwide have thus been trying to develop alternative technologies and methods that could enable the detection of these particles. […]

  • Nanoparticle jamming at the water-oil interface
    on December 4, 2020 at 2:30 pm

    The online cover of Science Advances this week features the assembly of nanoparticle surfactants at a solid-liquid interface using advanced microscopy techniques such as laser scanning confocal microscopy and atomic force microscopy. Materials scientists had explored the assembly of solids at a liquid interface for decades to understand ore (a complex and stable chemical compound) purification, emulsion and encapsulation processes. In a new report, Yu Chai and a research team at the Lawrence […]

  • Human reproductive technologies like sperm freezing and IVF could be used to save threatened species
    on December 4, 2020 at 1:46 pm

    More and more threatened species are relying on captive breeding to avoid extinction. Some species on the brink only exist in captivity, and others depend on captive breeding for their recovery before they're released to the wild. […]

  • STEM superstars call for more gender and cultural diversity
    on December 4, 2020 at 1:31 pm

    They specialize in different science, technology, engineering and maths (STEM) subjects but all have one thing in common—they're all STEM superstars. […]

  • More frequently sheared sheep are happier mothers
    on December 4, 2020 at 1:31 pm

    More frequently sheared pregnant sheep are more active, have lower stress levels and produce lambs with finer wool, according to University of Queensland research. […]

  • Threatened Species Index of Australia shows staggering loss of threatened native plants over 20...
    on December 4, 2020 at 1:29 pm

    In just over two decades (1995-2017) numbers of Australian threatened plants have decreased by more than 70% on average. […]

  • Polymer researcher's latest development results in novel cup that withstands boiling liquids
    on December 4, 2020 at 1:10 pm

    A University of Akron (UA) professor's latest development in bioplastics has the potential to make important strides in sustainability for future plastics. […]

  • Electrical spin filtering the key to ultra-fast, energy-efficient spintronics
    on December 4, 2020 at 1:07 pm

    Spin-filtering could be the key to faster, more energy-efficient switching in future spintronic technology, allowing the detection of spin by electrical rather than magnetic means. […]

  • Half of surveyed renters suffered mental health decline during COVID-19
    on December 4, 2020 at 1:06 pm

    Australian renters have been disproportionately affected by COVID-19 facing income loss, the inability to pay rent, tenure insecurity and eviction risk and a new AHURI publication provides a stark analysis of the impacts of these unprecedented challenges. […]

  • Lab study of droplet dynamics advances 3-D printing
    on December 4, 2020 at 1:06 pm

    A team of Lawrence Livermore National Laboratory (LLNL) scientists has simulated the droplet ejection process in an emerging metal 3-D printing technique called "Liquid Metal Jetting" (LMJ), a critical aspect to the continued advancement of liquid metal printing technologies. […]

  • How can cities become healthier, greener, and more equitable in the future?
    on December 4, 2020 at 1:06 pm

    When COVID-19 brought cities across the world to a halt this spring, there was speculation that the pandemic would spell the end of urban areas. While massive suburban flight has yet to happen, renewed lockdowns across Europe and rising cases in the U.S. make it clear that the ongoing public health crisis is far from over and its many impacts are not yet fully realized. […]

  • 'Off switch' during error-prone cell cycle phase may fix CRISPR problem
    on December 4, 2020 at 1:05 pm

    A group of researchers developed a promising fix to CRISPR-Cas9's problem with unwanted genetic changes using a method that allows them to turn off gene-editing until it reaches key cell cycle phases where more accurate repairs are likely to happen. […]

  • Study: Network model for implicit measures of attitudes
    on December 4, 2020 at 12:59 pm

    Our attitudes are composed of an interacting constellation of feelings, beliefs, and behaviors, and these elements can be in conflict with each other. For instance, a person might believe in principles like justice and equality while simultaneously harboring negative feelings toward a minority group. […]

  • Australia-bound asteroid sample may reveal life's origins
    on December 4, 2020 at 12:58 pm

    A Japanese space mission will deliver samples collected from asteroid Ryugu in a capsule to the outback desert of Woomera in South Australia this Sunday morning. […]

  • Tenants with a disability at greater risk during COVID
    on December 4, 2020 at 12:58 pm

    New findings released today by the University of South Australia paint an alarming picture for people with a disability who are renting in the private sector. […]

  • Phytolith reveals seasonal drought conditions of tropical East Asia during the last 60,000 years
    on December 4, 2020 at 12:57 pm

    Whether or not millennium-scale climate events had occurred in the tropical continent of East Asia during the last glacial period has been a long-term puzzle. In addition, whether those events were affected by the high-latitude atmospheric conditions in the northern hemisphere, or driven by low-latitude oceanic conditions, remains uncertain. […]

  • New DNA modification 'signature' discovered in zebrafish
    on December 4, 2020 at 1:05 am

    Researchers have revealed a previously unknown DNA modification in zebrafish - one of human's distant evolutionary cousins. […]

  • What's killing killer whales?
    on December 3, 2020 at 10:34 pm

    Pathology reports on more than 50 killer whales stranded over nearly a decade in the northeast Pacific and Hawaii show that orcas face a variety of mortal threats -- many stemming from human interactions. […]

  • Leaving so soon? Unusual planetary nebula fades mere decades after it arrived
    on December 3, 2020 at 10:34 pm

    The tiny Stingray Nebula unexpectedly appeared in the 1980s is by far the youngest planetary nebula in our sky. But a team of astronomers recently analyzed a more recent image of the nebula, taken in 2016 by Hubble, and found that it has faded significantly and changed shape over the course of just 20 years. If dimming continues at current rates, in 20 or 30 years the Stingray Nebula will be barely perceptible. […]

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