Earth
Digital coding and digital modulation technologies are important cornerstones of modern information science and technology, but they are limited in the digital world. In 2014, Prof. Tie Jun Cui at Southeast University and his coworkers proposed the concept of digital coding metamaterials, which combine the digital technologies with the electromagnetic wave manipulations, breaking the barrier between the digital world and physical world. However, manipulating confined electromagnetic waves in deep-subwavelength scale is still a significant challenge in this field.
The semiconductor industry has been developed for more than 40 years following the Moore's Law. With the size of transistors being shrinking down to tenth of nanometer scale, the quantum effects start to dominate and cause problems such as operation stability and heat generations [Fig. 1a] [1]. An alternative route is to develop new functional materials and their architectures. Complex oxide is one of the most promising candidates. Recently, scientists have shown novel phenomena of complex oxide at nanometer length scale and its potential for applications.
Digital innovations have the potential to bring people closer to nature, to help ensure there is the necessary strong public support for conservation measures. Examples below.
Author Professor Les Firbank, from the University of Leeds' School of Biology and Global Food and Environment Institute, said: "Our growing digital connection to wildlife, aided by broadcasters such as David Attenborough, may be crucial to securing broad public support for the protection of wildlife, which we are currently driving to extinction at record rates.
St. Petersburg, Fla. (November 22, 2019)- University of South Florida geoscientists have successfully developed and tested a new high-tech shallow water buoy that can detect the small movements and changes in the Earth's seafloor that are often a precursor to deadly natural hazards, like earthquakes, volcanoes and tsunamis.
DURHAM, N.C. -- A new cancer-detecting tool uses tiny circuits made of DNA to identify cancer cells by the molecular signatures on their surface.
Duke University researchers fashioned the simple circuits from interacting strands of synthetic DNA that are tens of thousands of times finer than a human hair.
Unlike the circuits in a computer, these circuits work by attaching to the outside of a cell and analyzing it for proteins found in greater numbers on some cell types than others. If a circuit finds its targets, it labels the cell with a tiny light-up tag.
Tropical Storm Sebastian continued to move in a northeasterly direction through the North Atlantic Ocean as NASA's Aqua satellite passed overhead. Infrared imagery from an instrument aboard Aqua revealed very high, powerful storms with very cold cloud top temperatures in the southwestern quadrant of the storm. It also revealed that the storm was being sheared apart by outside winds.
An international research team has called for a more sober discourse around climate change prospects, following an extensive reassessment of climate change's progress and its mitigation.
They argue that climate change models have understated potential warming's speed and runaway potential, while the models that relate climate science to consequences, choices and policies have understated the scope for practical mitigation against it. Policymakers are becoming aware of the former bias but seldom perceive the latter.
Sophia Antipolis, 22 November 2019: Insufficient sleep is one reason why disadvantaged groups have more heart disease. That's the finding of a study published today in Cardiovascular Research, a journal of the European Society of Cardiology (ESC).1
People with lower socioeconomic status sleep less for a variety of reasons: they may do several jobs, work in shifts, live in noisy environments, and have greater levels of emotional and financial stress.
For years, researchers have known that defects in an ancient cellular antenna called the primary cilium are linked with obesity and insulin resistance. Now, researchers at the Stanford University School of Medicine have discovered that the strange little cellular appendage is sensing omega-3 fatty acids in the diet, and that this signal is directly affecting how stem cells in fat tissue divide and turn into fat cells.
The volcanic island of Kueishantao in northeastern Taiwan is an extreme habitat for marine organisms. With an active volcano, the coastal area has a unique hydrothermal field with a multitude of hot springs and volcanic gases. The acidity of the study area was among the highest in the world. The easily accessible shallow water around the volcanic island therefore represents an ideal research environment for investigating the adaptability of marine organisms, some of which are highly specialised, such as crabs, to highly acidified and toxic seawater.
New York, NY--November 21, 2019--A recent study from the labs of James Hone (mechanical engineering) and Cory Dean (physics) demonstrates a new way to tune the properties of two-dimensional (2D) materials simply by adjusting the twist angle between them. The researchers built devices consisting of monolayer graphene encapsulated between two crystals of boron nitride and, by adjusting the relative twist angle between the layers, they were able to create multiple moiré patterns.
Researchers created a new modeling approach that accounts for climate and water impacts on electricity infrastructure development.
The new analysis compares results with traditional modeling approaches that may or may not consider climate impacts, revealing that the U.S. power grid may need more capacity than previously thought to adapt to future climate-water conditions.
ITHACA, N.Y. - Cornell researchers have made a new discovery about how seemingly minor aspects of the internal structure of bone can be strengthened to withstand repeated wear and tear, a finding that could help treat patients suffering from osteoporosis. It could also lead to the creation of more durable, lightweight materials for the aerospace industry.
CHAPEL HILL, NC - November 21, 2019 - Scientists have known that genetic mutations leading to the production of a defective protein called GFAP cause Alexander disease (AxD), a debilitating neurodegenerative condition that can present during infancy, adolescence, or adulthood. Many people with the rare condition die within the first few years, but some survive for several decades. Now, UNC School of Medicine researchers are learning about the differences in the underlying biology of patients with severe and milder forms of AxD.
Under a warming climate, wildfires in Oregon's southern Blue Mountains will become more frequent, more extensive and more severe, according to a new Portland State University-led study.
Researchers from PSU, North Carolina State University, University of New Mexico and the U.S. Forest Service looked at how climate-driven changes in forest dynamics and wildfire activity will affect the landscape through the year 2100. They used a forest landscape model, LANDIS-II, to simulate forest and fire dynamics under current management practices and two projected climate scenarios.