BUSINESS

Record-low 2016 Antarctic sea ice due to ‘perfect storm’ of tropical, polar conditions

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While winter sea ice in the Arctic is declining so dramatically that ships can now navigate those waters without any icebreaker escort, the scene in the Southern Hemisphere is very different. Sea ice area around Antarctica has actually increased slightly in winter -- that is, until last year.A dramatic drop in Antarctic sea ice almost a year ago, during the Southern Hemisphere spring, brought its maximum area down to its lowest level in 40 years of...Powered by WPeMatico

Stellar corpse sheds light on origin of cosmic rays

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New research revealed that the entire zoo of electromagnetic radiation streaming from the Crab Nebula has its origin in one population of electrons and must be produced in a different way than scientists haveThe origin of cosmic rays, high-energy particles from outer space constantly impacting on Earth, is among the most challenging open questions in astrophysics....Powered by WPeMatico

Virus hijacks cell’s transportation system

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A deadly tick-borne virus uses the host neuron's transportation system to move their RNA, resulting in the local reproduction of the virus and severe neurological symptomsFlaviviruses are a significant threat to public health worldwide, and some infected patients develop severe -- potentially fatal -- neurological diseases....Powered by WPeMatico

Bit data goes anti-skyrmions

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Today’s world, rapidly changing because of “big data”, is encapsulated in trillions of tiny magnetic objects – magnetic bits – each of which stores one bit of data in magnetic disk drives. A group of scientists from the Max Planck Institutes in Halle and Dresden have discovered a new kind of magnetic nano-object in a novel material that could serve as a magnetic bit with cloaking properties to make a magnetic disk drive with no moving parts – a Racetrack Memory – a reality in the near future.Most digital data is stored in the cloud as magnetic bits within massive numbers of magnetic disk drives. Over the past several decades these magnetic bits...Powered by WPeMatico

Electricity production: When enzymes rival platinum

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A fuel cell converts chemical energy into electrical energy via hydrogen combustion. Though it is considered to be a clean technology - because it does not emit greenhouse gases - fuel cells do use costly rare metal catalysts1, such as platinum, to oxidize hydrogen and reduce oxygen.In recent years, the identification of biocatalysts, enzymes with remarkable properties, has revitalized research in this area: their oxygen, and especially...Powered by WPeMatico

Like a Revolving Door: How Shuttling Proteins Operate Nuclear Pores

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Nuclear pore complexes are tiny channels where the exchange of substances between the cell nucleus and the cytoplasm takes place. Scientists at the University of Basel report on startling new research that might overturn established models of nuclear transport regulation. Their study published in the Journal of Cell Biology reveals how shuttling proteins known as importins control the function of nuclear pores – as opposed to the view that nuclear pores control the shuttling of importins.Genetic information is protected in the cell nucleus by a membrane that contains numerous nuclear pores. These pores facilitate the traffic of proteins known...Powered by WPeMatico

Chemo-boosting drug discovered for leukemia

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Drugs developed to treat heart and blood vessel problems could be used in combination with chemotherapy to treat an aggressive form of adult leukemiaDrugs developed to treat heart and blood vessel problems could be used in combination with chemotherapy to treat an aggressive form of adult leukemia, new...Powered by WPeMatico

PolyU discovers a newly emerged superbug

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The Partner State Key Laboratory of Chirosciences at the Department of Applied Biology and Chemical Technology (ABCT) of The Hong Kong Polytechnic University (PolyU) discovered a newly emerged superbug, hyper-resistant and hypervirulent Klebsiella pneumoniae, which may cause untreatable and fatal infections in relatively healthy individuals and will pose enormous threat to human health.Prof. Chen Sheng, Professor of ABCT, collaborating with Prof. Rong Zhang from the Second Affiliated Hospital of Zhejiang University, conducted an investigation...Powered by WPeMatico

Biologists find new source for brain’s development

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A team of biologists has found an unexpected source for the brain's development, a finding that offers new insights into the building of the nervous system.The research, which appears in the journal Science, discovered that glia, a collection of non-neuronal cells that had long been regarded as passive support...Powered by WPeMatico