Nina Prokhorova, a farmer in Rogachievo, Russia, shows one of her small potatoes from her dacha garden, which has been devastated this year by drought and Colorado potato beetles. Photo: Blaine P. Friedlander Jr./Cornell News Service
Copyright © Cornell University
While many Americans will be relaxing after their Thanksgiving Day feast, many people around the world may have a shortage of food, particularly potatoes, a staple that is being seriously threatened by a disease called potato late blight.
In a news story appearing in the journal Science (Nov. 29), "Taking the Bite Out of Blight," writer Glenn Garelik examines the disease that is affecting potato production globally.
Potato late blight (Phytophthora infestans ) is the pathogen that infested Ireland’s potato fields in the 1840s, considered a major cause of the famine. Scientists had potato late blight under control in the mid-20th century, but in the past three decades late blight has spread around the globe, and the mutated funguslike pathogen has grown more tenacious than ever.
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Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
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For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
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An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
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A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
Researchers from the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science, the Italian Space Agency (ASI), and the Instituto Geofisico--Escuela Politecnica Nacional (IGEPN) of Ecuador, showed an increasing volcanic danger on Cotopaxi in Ecuador using a powerful technique known as Interferometric Synthetic Aperture Radar (InSAR).
The Andes region in which Cotopaxi volcano is located is known to contain some of the world's most serious volcanic hazard. A mid- to large-size eruption has...
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