A miniscule marine creature caught during a recent Indian Ocean research voyage is believed to be the first of its kind identified in the Southern Hemisphere
A miniscule marine creature caught during a recent Indian Ocean research voyage is believed to be the first of its kind identified in the Southern Hemisphere.The single celled organism, supporting what looks like 6 legs is a phaeodaria from the family coelodendridae, also known as a radiolarian. Measuring only 1.4 mm, the organism was found during an investigation of ocean eddies by the National Marine Facility, Southern Surveyor.
"It was a case of being in the right place at the right time with the right people," says PhD student Harriet Paterson, who discovered the radiolarian. Harriet works with the Strategic Research Fund for the Marine Environment (SRFME) a joint CSIRO-West Australian Government marine research team based at Floreat, Perth. "Our objective was to collect samples of marine life in ocean eddies and this was a complete surprise to us, and I’m sure to other researchers in this field from Northern Hemisphere institutions," Ms Paterson said. Ms Paterson detailed her research to colleagues during a science symposium in Perth yesterday (June 16).
Craig Macaulay | EurekAlert!
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Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
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Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
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Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
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