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  • Device makes power conversion more efficient

    Power electronics, which do things like modify voltages or convert between direct and alternating current, are everywhere. They’re in the power bricks we use to charge our portable devices; they’re in the battery packs of electric cars; and they’re in the power grid itself, where they mediate between high-voltage transmission lines and the lower voltages of household electrical sockets.

    >> Read the Full Article
  • New screening technique will allow crop breeders to develop drought resistant varieties faster

    Chithra Karunakaran and Karen Tanino’s team developed a simple non-destructive method to screen hundreds of wheat leaf samples in a day, reducing the time and cost associated with traditional breeding programs to select varieties for drought tolerance. Their findings were published in the November issue of Physiologia Plantarum.

    “Developing these types of tools better enables physiologists to complement breeding programs,” said Tanino, a professor of plant sciences at the University of Saskatchewan.

    >> Read the Full Article
  • Quantifying the Greenhouse Gas Footprint of Crop Cultivation

    "Climate-smart” crop cultivation, characterized by a low greenhouse gas (GHG) footprint, low synthetic nitrogen consumption, and simultaneously high yields (Figure 1), is an approach in agriculture for implementing the Paris Agreement as part of mitigating climate change. The GHG footprint is an index used to indicate the climate change impact potential exerted by crop production. It is therefore crucial to accurately quantify the GHG footprints of crop cultivation systems. However, severe problems or drawbacks in the quantification of GHG footprints still exist, which has limited the applicability of the GHG footprint in crop cultivation.

    >> Read the Full Article
  • Clean Energy: Experts Outline How Governments Can Successfully Invest Before It's Too Late

    Governments need to give technical experts more autonomy and hold their nerve to provide more long-term stability when investing in clean energy, argue researchers in climate change and innovation policy in a new paper published today.

    >> Read the Full Article
  • Researchers Model Optimal Amount of Rainfall for Plants

    Researchers have determined what could be considered a “Goldilocks” climate for rainfall use by plants: not too wet and not too dry. 

    >> Read the Full Article
  • Satellite Tracking Provides Clues About South Atlantic Sea Turtles' 'Lost Years'

    A University of Central Florida biologist whose groundbreaking work tracking the movements of sea turtle yearlings in the North Atlantic Ocean attracted international attention has completed a similar study in the South Atlantic with surprising results.

    >> Read the Full Article
  • Decades-Past Logging Still Threatens Spotted Owls in National Forests

    Logging of the largest trees in the Sierra Nevada’s national forests ended in the early 1990s after agreements were struck to protect species’ habitat.

    >> Read the Full Article
  • ShakeAlert System Continues Progress toward Public Use

    A decade after beginning work on an earthquake early warning system, scientists and engineers are fine-tuning a U.S. West Coast prototype that could be in limited public use in 2018.

    >> Read the Full Article
  • Go with the flow (or against it)

    Queen’s University researchers are using magnetic fields to influence a specific type of bacteria to swim against strong currents, opening up the potential of using the microscopic organisms for drug delivery in environments with complex microflows – like the human bloodstream.

    “MTB have tiny (nanoscopic) organelles called magnetosomes, which act like a compass needle that helps them navigate to nutrient-rich locations in aquatic environments – their natural habitats – by using the Earth’s magnetic field,” says Dr. Escobedo. “In nature, MTB play a key role in Earth’s cycles by influencing marine biogeochemistry via transporting minerals and organic matters as nutrients.”

    >> Read the Full Article
  • Avian Flu From Abroad Can Spread in North American Poultry, Wild Birds

    Some avian influenza, or bird flu, viruses that are able to enter North America from other continents through migrating birds can be deadly to poultry and can infect waterfowl populations, according to a recently published U.S. Geological Survey study.

    >> Read the Full Article

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