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Categories: Biology: Marine, Physics: Quantum Physics

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Biology: Biochemistry Biology: General Biology: Marine Biology: Microbiology Biology: Zoology Ecology: Sea Life Geoscience: Geography Geoscience: Oceanography
Published

Perfect 'pathogen' storm: Vibrio bacteria, Sargassum and plastic marine debris      (via sciencedaily.com)     Original source 

Little is known about the ecological relationship of Vibrio bacteria with Sargassum. Evidence also is sparse as to whether vibrios colonizing plastic marine debris and Sargassum could potentially infect humans. As summer kicks off and efforts are underway to find solutions to repurpose Sargassum, could these substrates pose a triple threat to public health? Results of a study representing the first Vibrio spp. genome assembled from plastic finds Vibrio pathogens have the unique ability to 'stick' to microplastics, harboring potent opportunistic pathogens.

Biology: Marine Biology: Zoology Ecology: Sea Life Environmental: Ecosystems Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

New use for A.I.: Correctly estimating fish stocks      (via sciencedaily.com)     Original source 

A newly published artificial intelligence (AI) algorithm is allowing researchers to quickly and accurately estimate coastal fish stocks without ever entering the water.

Chemistry: Biochemistry Chemistry: Inorganic Chemistry Computer Science: General Computer Science: Quantum Computers Mathematics: Modeling Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Curved spacetime in a quantum simulator      (via sciencedaily.com)     Original source 

The connection between quantum physics and the theory of relativity is extremely hard to study. But now, scientists have set up a model system, which can help: Quantum particles can be tuned in such a way that the results can be translated into information about other systems, which are much harder to observe. This kind of 'quantum simulator' works very well and can lead to new insights about the nature of relativity and quantum physics.

Biology: Evolutionary Biology: General Biology: Marine Ecology: Animals Ecology: Nature Ecology: Sea Life
Published

Jaw shapes of 90 shark species show: Evolution driven by habitat      (via sciencedaily.com)     Original source 

Researchers investigated how the jaw shape of sharks has changed over the course of evolution. Their conclusion: in the most widespread shark species, the jaws show relatively little variation in shape over millions of years; most variable jaws were found for deep-sea sharks.

Biology: Biochemistry Biology: General Biology: Marine Ecology: Animals Ecology: Sea Life
Published

Crushed clams, roaming rays: Acoustic tags reveal predator interactions      (via sciencedaily.com)     Original source 

Inspired by clam fishermen reports, researchers used passive acoustic telemetry to gauge the interactions between two highly mobile rays. They monitored the tagged rays in the wild over two years to see how often and when they visited clam leases, designated underwater locations used to produce hard clams of all sizes from littlenecks to chowders. Results provide both good news and bad news for clammers. Rays spent even more time in these clam lease sites than clammers reported or suspected, but it's not necessarily where they prefer hanging out.

Biology: Biochemistry Biology: Marine Ecology: Sea Life
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Singing humpback whales respond to wind noise, but not boats      (via sciencedaily.com)     Original source 

A new study has found humpback whales sing louder when the wind is noisy, but don't have the same reaction to boat engines.

Biology: Marine Biology: Zoology Ecology: Endangered Species Ecology: Sea Life Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Geography Geoscience: Oceanography
Published

Global warming puts whales in the Southern Ocean on a diet      (via sciencedaily.com)     Original source 

In the autumn, when right whales swim towards the coasts of South Africa, they ought to be fat and stuffed full. But in recent years, they have become thinner because their food is disappearing with the melting sea ice.

Chemistry: Biochemistry Engineering: Graphene Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

With new experimental method, researchers probe spin structure in 2D materials for first time      (via sciencedaily.com)     Original source 

In the study, a team of researchers describe what they believe to be the first measurement showing direct interaction between electrons spinning in a 2D material and photons coming from microwave radiation.

Computer Science: General Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Researcher uses artificial intelligence to discover new materials for advanced computing      (via sciencedaily.com)     Original source 

Researchers have identified novel van der Waals (vdW) magnets using cutting-edge tools in artificial intelligence (AI). In particular, the team identified transition metal halide vdW materials with large magnetic moments that are predicted to be chemically stable using semi-supervised learning. These two-dimensional (2D) vdW magnets have potential applications in data storage, spintronics, and even quantum computing.

Biology: Botany Biology: Evolutionary Biology: General Biology: Marine Biology: Microbiology Ecology: Nature Ecology: Research Ecology: Sea Life
Published

Like ancient mariners, ancestors of Prochlorococcus microbes rode out to sea on exoskeleton particles      (via sciencedaily.com)     Original source 

Throughout the ocean, billions upon billions of plant-like microbes make up an invisible floating forest. As they drift, the tiny organisms use sunlight to suck up carbon dioxide from the atmosphere. Collectively, these photosynthesizing plankton, or phytoplankton, absorb almost as much CO2 as the world’s terrestrial forests. A measurable fraction of their carbon-capturing muscle comes from Prochlorococcus — an emerald-tinged free-floater that is the most abundant phytoplankton in the oceans today. New research suggests the microbe's ancient coastal ancestors colonized the ocean by rafting out on chitin particles.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Nature Ecology: Sea Life Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Geography Geoscience: Oceanography
Published

Hammerhead sharks hold their breath on deep water hunts to stay warm      (via sciencedaily.com)     Original source 

Scalloped hammerhead sharks hold their breath to keep their bodies warm during deep dives into cold water where they hunt prey such as deep sea squids. This discovery provides important new insights into the physiology and ecology of a species that serves as an important link between the deep and shallow water habitats.

Chemistry: Biochemistry Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Physicists discover 'stacked pancakes of liquid magnetism'      (via sciencedaily.com)     Original source 

Physicists have discovered stacked pancakes of 'liquid' magnetism that may account for the strange electronic behavior of some layered helical magnets.

Physics: General Physics: Optics Physics: Quantum Physics
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Quantum electrodynamics verified with exotic atoms      (via sciencedaily.com)     Original source 

Adapting a detector developed for space X-ray observation, researchers have successfully verify strong-field quantum electrodynamics with exotic atoms.

Biology: General Biology: Marine Biology: Zoology Ecology: Sea Life Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Dinosaurs Paleontology: General
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Giants of the Jurassic seas were twice the size of a killer whale      (via sciencedaily.com)     Original source 

There have been heated debates over the size of Jurassic animals. The speculation was set to continue, but now a chance discovery in an Oxfordshire museum has led to palaeontologists publishing a paper on a Jurassic species potentially reaching a whopping 14.4 meters -- twice the size of a killer whale.

Biology: Biochemistry Biology: Marine Biology: Microbiology Environmental: General Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geography Geoscience: Geology
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How life and geology worked together to forge Earth's nutrient rich crust      (via sciencedaily.com)     Original source 

Around 500 million years ago life in the oceans rapidly diversified. In the blink of an eye -- at least in geological terms -- life transformed from simple, soft-bodied creatures to complex multicellular organisms with shells and skeletons. Now, research has shown that the diversification of life at this time also led to a drastic change in the chemistry of Earth's crust -- the uppermost layer we walk on and, crucially, the layer which provides many of the nutrients essential to life.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: General Biology: Marine Biology: Microbiology Biology: Zoology Ecology: Sea Life
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Basic 'toolkit' for organ development is illuminated by sea star      (via sciencedaily.com)     Original source 

One of the basic and crucial embryonic processes to unfold in virtually every living organism is the formation of hollow, tubular structures that go on to form blood vessels or a digestive tract, and through branching and differentiation, complex organs including the heart and kidneys. This study illuminates fundamental design principles of tubulogenesis for all chordates, including mammals.

Biology: Marine Biology: Zoology Ecology: Sea Life Environmental: Ecosystems Geoscience: Earth Science Geoscience: Oceanography Paleontology: Fossils Paleontology: General
Published

Earth's first animals had particular taste in real estate      (via sciencedaily.com)     Original source 

Even without body parts that allowed for movement, new research shows -- for the first time -- that some of Earth's earliest animals managed to be picky about where they lived.

Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
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Leaky-wave metasurfaces: A perfect interface between free-space and integrated optical systems      (via sciencedaily.com)     Original source 

Researchers have developed a new class of integrated photonic devices -- 'leaky-wave metasurfaces' -- that convert light initially confined in an optical waveguide to an arbitrary optical pattern in free space. These are the first to demonstrate simultaneous control of all four optical degrees of freedom. Because they're so thin, transparent, and compatible with photonic integrated circuits, they can be used to improve optical displays, LIDAR, optical communications, and quantum optics.

Computer Science: Quantum Computers Engineering: Graphene Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Symmetric graphene quantum dots for future qubits      (via sciencedaily.com)     Original source 

Quantum dots in semiconductors such as silicon or gallium arsenide have long been considered hot candidates for hosting quantum bits in future quantum processors. Scientists have now shown that bilayer graphene has even more to offer here than other materials. The double quantum dots they have created are characterized by a nearly perfect electron-hole-symmetry that allows a robust read-out mechanism -- one of the necessary criteria for quantum computing.