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Categories: Biology: Genetics, Physics: Quantum Physics

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Biology: Biotechnology Biology: Genetics Biology: Molecular Environmental: Water
Published

Standard model of electroporation refuted      (via sciencedaily.com) 

Strong electric fields can be used to create pores in biomembranes. The method is known as electroporation. Inducing such defects in membranes in a targeted manner is an important technique in medicine and biotechnology, but also in the treatment of foodstuffs.

Biology: Developmental Biology: Genetics Biology: Microbiology Biology: Molecular
Published

New insights into cellular 'bridges' shed light on development, disease      (via sciencedaily.com) 

Most cells in the bodies of living things duplicate their contents and physically separate into new cells through the process of cell division. But across many species, germ cells, those that become eggs or sperm, don't fully separate. They remain interconnected through small bridges called ring canals and cluster together. In a new study, researchers uncover how it is that germ cells in fruit flies form these ring canals, a finding that they say will provide new insights into a widely shared feature of development and into diseases in which cell division is disrupted.

Physics: General Physics: Optics Physics: Quantum Physics
Published

Ringing an electronic wave: Elusive massive phason observed in a charge density wave      (via sciencedaily.com) 

Researchers have detected the existence of a charge density wave of electrons that acquires mass as it interacts with the background lattice ions of the material over long distances.

Computer Science: Quantum Computers Offbeat: Computers and Math Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

In the world's smallest ball game, scientists throw and catch single atoms using light      (via sciencedaily.com) 

Researchers show that individual atoms can be caught and thrown using light. This is the first time an atom has been released from a trap -- or thrown -- and then caught by another trap. This technology could be used in quantum computing applications.

Chemistry: Inorganic Chemistry Energy: Nuclear Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Hitting nuclei with light may create fluid primordial matter      (via sciencedaily.com) 

A new analysis supports the idea that photons colliding with heavy ions create a fluid of 'strongly interacting' particles. The results indicate that photon-heavy ion collisions can create a strongly interacting fluid that responds to the initial collision geometry and that these collisions can form a quark-gluon plasma. These findings will help guide future experiments at the planned Electron-Ion Collider.

Biology: Biotechnology Biology: Genetics Geoscience: Environmental Issues Offbeat: Earth and Climate Offbeat: Plants and Animals
Published

What 'Chornobyl dogs' can tell us about survival in contaminated environments      (via sciencedaily.com) 

In the first step toward understanding how dogs -- and perhaps humans -- might adapt to intense environmental pressures such as exposure to radiation, heavy metals, or toxic chemicals, researchers found that two groups of dogs living within the Chernobyl Exclusion Zone showed significant genetic differences between them. The results indicate that these are two distinct populations that rarely interbreed. While earlier studies focused on the effects of the Chernobyl Nuclear Power Plant disaster on various species of wildlife, this is the first investigation into the genetic structure of stray dogs living near the Chernobyl nuclear power plant.

Biology: Genetics
Published

Genes in beans: Bean genome sequenced for improved nutrition      (via sciencedaily.com) 

The faba bean genome, which at 13 billion bases is more than four times the size of the human genome, has been sequenced. This is an extraordinary technical achievement and crucial to efforts to breed beans with optimum nutritional content and sustainability of production.

Biology: Genetics Biology: Microbiology
Published

Pattern recognition system that monitors disease-causing bacteria in C. elegans      (via sciencedaily.com)     Original source 

Researchers describe a new manner of detecting microbial infection that intercepts pathogen-derived signals of growth to assess the relative threat of virulent bacteria. A nuclear hormone receptor in the nematode C. elegans senses a toxic metabolite produced by the bacterial pathogen Pseudomonas aeruginosa to activate innate immunity. These data reveal an ancient strategy that informs the origins of pathogen detection and may be among the most primordial forms of immune sensing in animals.

Biology: Biotechnology Biology: Botany Biology: Genetics Biology: Microbiology Ecology: Animals Ecology: Endangered Species Geoscience: Environmental Issues
Published

Wheat's ancient roots of viral resistance uncovered      (via sciencedaily.com) 

The DNA sequence of a gene in wheat responsible for resisting a devastating virus has been discovered, providing vital clues for managing more resistant crops and maintaining a healthy food supply.

Biology: Biotechnology Biology: Developmental Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Phage attacks shown in new light      (via sciencedaily.com) 

New methodology and tools provide an opportunity to watch in unprecedented detail as a phage attacks a bacterium.

Engineering: Graphene Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Graphene quantum dots show promise as novel magnetic field sensors      (via sciencedaily.com) 

Trapped electrons traveling in circular loops at extreme speeds inside graphene quantum dots are highly sensitive to external magnetic fields and could be used as novel magnetic field sensors with unique capabilities, according to a new study.

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

Two-dimensional quantum freeze      (via sciencedaily.com) 

Researchers have succeeded in simultaneously cooling the motion of a tiny glass sphere in two dimensions to the quantum ground-state. This represents a crucial step towards a 3D ground-state cooling of a massive object and opens up new opportunities for the design of ultra-sensitive sensors.

Chemistry: General Computer Science: Quantum Computers Engineering: Nanotechnology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

An innovative twist on quantum bits: Tubular nanomaterial of carbon makes ideal home for spinning quantum bits      (via sciencedaily.com) 

Scientists develop method for chemically modifying nanoscale tubes of carbon atoms, so they can host spinning electrons to serve as stable quantum bits in quantum technologies.

Biology: Biotechnology Biology: Developmental Biology: Genetics Biology: Molecular
Published

Rhythmic eating pattern preserves fruit fly muscle function under obese conditions      (via sciencedaily.com) 

Obese fruit flies are the experimental subjects in a study of the causes of muscle function decline due to obesity. In humans, skeletal muscle plays a crucial role in metabolism, and muscle dysfunction due to human obesity can lead to insulin resistance and reduced energy levels.

Biology: Biotechnology Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Biologists, chemical engineers collaborate to reveal complex cellular process inside petunias      (via sciencedaily.com) 

Once upon a time, prevailing scientific opinion might have pronounced recently published research as unneeded. Now, climate change implications have heightened the need for this line of research. Flowers emit scent chemicals called volatile organic compounds (VOCs). Earlier this year, a study identified a protein that plays a key role in helping petunias emit volatiles.

Biology: Developmental Biology: Evolutionary Biology: Genetics Biology: Microbiology
Published

Illuminating the evolution of social parasite ants      (via sciencedaily.com) 

The findings offer a new way to understand how some ants become total layabouts.

Physics: General Physics: Quantum Physics
Published

Destroying the superconductivity in a kagome metal      (via sciencedaily.com) 

A recent study has uncovered a distinct disorder-driven superconductor-insulator transition. This first electric control of superconductivity and quantum Hall effect in a candidate material for future low-energy electronics has promise to reduce the rising, unsustainable energy cost of computing.

Biology: Biotechnology Biology: Developmental Biology: Evolutionary Biology: Genetics Biology: Microbiology Biology: Molecular Biology: Zoology
Published

Fluorescent protein sheds light on bee brains      (via sciencedaily.com) 

An international team of bee researchers has integrated a calcium sensor into honey bees to enable the study of neural information processing including response to odors. This also provides insights into how social behavior is located in the brain.

Biology: Genetics Biology: Molecular Biology: Zoology
Published

Researchers provide proof of the helical coiling of condensed chromosomes      (via sciencedaily.com)     Original source 

In early cytological studies chromatids of metaphase chromosomes were suggested to coil into a spiral called chromonema. This assumption was recently supported by chromosomce conformation capture sequencing. Still, the direct visualization of the coiled chromonema confirming the helical model was lacking. Now, an international research team provides the direct proof of the helical coiling of condensed chromatids via super-resolution microscopy of specifically labelled chromonema regions.