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Categories: Ecology: Sea Life, Physics: General

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Physics: General Physics: Optics Physics: Quantum Physics
Published

Kerr-enhanced optical spring for next-generation gravitational wave detectors      (via sciencedaily.com)     Original source 

A novel technique for enhancing optical spring that utilizes the Kerr effect to improve the sensitivity of gravitational wave detectors (GWDs) has recently been developed. This innovative design uses optical non-linear effects from the Kerr effect in the Fabry-Perot cavity to achieve high signal amplification ratios and optical spring constant, with potential applications in not only GWDs but also in a range of optomechanical systems.

Biology: General Biology: Marine Biology: Microbiology Biology: Zoology Ecology: General Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: Water Geoscience: Geochemistry Geoscience: Oceanography
Published

What four decades of canned salmon reveal about marine food webs      (via sciencedaily.com)     Original source 

Researchers have shown that levels of anisakid worms -- a common marine parasite -- rose in two salmon species in the Gulf of Alaska and Bristol Bay over a 42-year period. The team discovered this by studying salmon caught, killed and canned from 1979 to 2021. Since anisakid worms have a complex life cycle involving multiple types of hosts, the researchers interpret their rising numbers as a potential sign of ecosystem recovery, possibly driven by rising numbers of marine mammals thanks to the 1972 Marine Mammal Protection Act.

Biology: Biochemistry Biology: General Biology: Marine Ecology: Nature Ecology: Sea Life Environmental: Ecosystems Environmental: Water
Published

Shy sea anemones are more likely to survive heatwaves      (via sciencedaily.com)     Original source 

A study shows that sea anemones that react more slowly to change can survive a heatwave better than individuals that change their behavior quickly.

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

Progress in quantum physics: Researchers tame superconductors      (via sciencedaily.com)     Original source 

An international team including researchers from the University of W rzburg has succeeded in creating a special state of superconductivity. This discovery could advance the development of quantum computers.

Biology: Marine Biology: Zoology Ecology: Nature Ecology: Sea Life Environmental: Biodiversity Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

Adult fish struggle to bounce back in marine protected areas      (via sciencedaily.com)     Original source 

Many marine protected areas are falling short of their most basic purpose: to rebuild struggling fish populations. In a new study, scientists looked at the age breakdown of reef fish in marine protected areas for the first time. They discovered in almost all of them, adult fish populations -- vital to spawning the next generation -- have either flatlined or declined.

Chemistry: Biochemistry Physics: General
Published

Self-assembly of complex systems: Hexagonal building blocks are better      (via sciencedaily.com)     Original source 

Physicists show that the shape of components is a major determinant of how quickly and efficiently complex structures self-assemble.

Energy: Nuclear Engineering: Nanotechnology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Researchers discover 'neutronic molecules'      (via sciencedaily.com)     Original source 

Researchers have discovered 'neutronic' molecules, in which neutrons can be made to cling to quantum dots, held just by the strong force. The finding may lead to new tools for probing material properties at the quantum level and exploring new kinds of quantum information processing devices.

Chemistry: Inorganic Chemistry Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Researchers visualize quantum effects in electron waves      (via sciencedaily.com)     Original source 

One of the most fundamental interactions in physics is that of electrons and light. In an experiment, scientists have now managed to observe what is known as the Kapitza-Dirac effect for the first time in full temporal resolution. This effect was first postulated over 90 years ago, but only now are its finest details coming to light.

Chemistry: Thermodynamics Environmental: General Geoscience: Environmental Issues Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Sunrise to sunset, new window coating blocks heat -- not view      (via sciencedaily.com)     Original source 

Windows welcome light into interior spaces, but they also bring in unwanted heat. A new window coating blocks heat-generating ultraviolet and infrared light and lets through visible light, regardless of the sun's angle. The coating can be incorporated onto existing windows or automobiles and can reduce air-conditioning cooling costs by more than one-third in hot climates.

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

100 kilometers of quantum-encrypted transfer      (via sciencedaily.com)     Original source 

Researchers have taken a big step towards securing information against hacking. They have succeeded in using quantum encryption to securely transfer information 100 kilometers via fiber optic cable -- roughly equivalent to the distance between Oxford and London.

Chemistry: Biochemistry Energy: Technology Engineering: Nanotechnology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Researchers discover dual topological phases in an intrinsic monolayer crystal      (via sciencedaily.com)     Original source 

An international team working with single-atom thick crystals found TaIrTe4's transition between the two distinct topological states of insulation and conduction. The material exhibited zero electrical conductivity within its interior, while its boundaries remain conductive. The team's investigation determined that the two topological states stem from disparate origins. The novel properties can serve as a promising platform for exploring exotic quantum phases and electromagnetism.

Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Magnetic avalanche triggered by quantum effects      (via sciencedaily.com)     Original source 

Scientists have shown that Barkhausen noise can be produced not only through traditional, or classical means, but through quantum mechanical effects. The research represents an advance in fundamental physics and could one day have applications in creating quantum sensors and other electronic devices.

Energy: Alternative Fuels Energy: Nuclear Physics: General
Published

Nuclear fusion, lithium and the tokamak: Adding just enough fuel to the fire      (via sciencedaily.com)     Original source 

Building upon recent findings showing the promise of coating the inner surface of the vessel containing a fusion plasma in liquid lithium, researchers have determined the maximum density of uncharged particles at the edge of a plasma before certain instabilities become unpredictable. The research includes observations, numerical simulations and analysis from their experiments inside a fusion plasma vessel called the Lithium Tokamak Experiment-Beta (LTX- ). This is the first time such a level has been established for LTX- , and knowing it is a big step in their mission to prove lithium is the ideal choice for an inner-wall coating in a tokamak because it guides them toward the best practices for fueling their plasmas.

Biology: Biochemistry Biology: Marine Ecology: Extinction Ecology: Nature Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues
Published

Going 'back to the future' to forecast the fate of a dead Florida coral reef      (via sciencedaily.com)     Original source 

How coral populations expand into new areas and sustain themselves over time is limited by the scope of modern observations. Going back thousands of years, a study provides geological insights into coral range expansions by reconstructing the composition of a Late Holocene-aged subfossil coral death assemblage in an unusual location in Southeast Florida and comparing it to modern reefs throughout the region. Findings offer a unique glimpse into what was once a vibrant coral reef assemblage and discover if history can repeat itself in the face of climate change.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: Endangered Species Ecology: Extinction Ecology: Sea Life Environmental: General Geoscience: Environmental Issues
Published

Scientists warn: The grey seal hunt is too large      (via sciencedaily.com)     Original source 

Researchers warn that today's hunting quotas of about 3,000 animals pose a risk to the long-term survival of the grey seal in the Baltic Sea. The conclusions of this new study are based on statistics from 20th century seal hunting and predictions of future climate change.

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

A new type of cooling for quantum simulators      (via sciencedaily.com)     Original source 

Quantum simulators are quantum systems that can be controlled exceptionally well. They can be used to indirectly learn something about other quantum systems, which cannot be experimented on so easily. Therefore, quantum simulators play an important role in unraveling the big questions of quantum physics. However, they are limited by temperature: They only work well, when they are extremely cold. Scientists have now developed a method to cool quantum simulators even more than before: by splitting a Bose-Einstein-condensate in half, in a very special way.

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

Bullseye! Accurately centering quantum dots within photonic chips      (via sciencedaily.com)     Original source 

Researchers have now developed standards and calibrations for optical microscopes that allow quantum dots to be aligned with the center of a photonic component to within an error of 10 to 20 nanometers (about one-thousandth the thickness of a sheet of paper). Such alignment is critical for chip-scale devices that employ the radiation emitted by quantum dots to store and transmit quantum information.

Biology: Biochemistry Biology: Biotechnology Biology: General Biology: Genetics Biology: Marine Ecology: Sea Life Environmental: Ecosystems Geoscience: Severe Weather
Published

Severe hurricanes boost influx of juveniles and gene flow in a coral reef sponge      (via sciencedaily.com)     Original source 

A study is the first to evaluate substrate recolonization by sponges in the U.S. Virgin Islands after two catastrophic storms using genetic analyses to understand how much clonality verses sexual recruitment occurs on coral reefs post-storms. Results show that populations of clonal marine species with low pelagic dispersion, such as A. cauliformis, may benefit from increased frequency and magnitude of hurricanes to maintain genetic diversity and combat inbreeding, enhancing the resilience of Caribbean sponge communities to extreme storm events.