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Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

X-ray emissions from black hole jets vary unexpectedly, challenging leading model of particle acceleration      (via sciencedaily.com)     Original source 

Black hole jets are known to emit x-rays, but how they accelerate particles to this high-energy state is still a mystery. Surprising new findings appear to rule out a leading theory, opening the door to reimagining how particle acceleration works. One model of how jets generate x-rays expects the jets' x-ray emissions to remain stable over long time scales. However, the new paper found that the x-ray emissions of a statistically significant number of jets varied over just a few years.

Chemistry: Inorganic Chemistry Energy: Technology Physics: General Physics: Optics
Published

Absolute vs. relative efficiency: How efficient are blue LEDs, actually?      (via sciencedaily.com)     Original source 

The absolute internal quantum efficiency (IQE) of indium gallium nitride (InGaN) based blue light-emitting diodes (LEDs) at low temperatures is often assumed to be 100%. However, a new study has found that the assumption of always perfect IQE is wrong: the IQE of an LED can be as low as 27.5%.

Biology: Biochemistry Biology: Biotechnology Biology: Botany Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Ecology: Endangered Species Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Groundbreaking images of root chemicals offer new insights on plant growth      (via sciencedaily.com)     Original source 

Applying imaging technology to plant roots, researchers have developed a new understanding of chemicals that are responsible for plant growth. The chemical 'roadmap' identifies where key molecules are distributed along corn roots and how their placement factors into the plant's maturation.

Biology: Biochemistry Biology: Microbiology
Published

Researchers show that IgA fine tunes the body's interactions with microbes      (via sciencedaily.com)     Original source 

A new study has demonstrated that IgA acts as a 'tuner' that regulates the number of microbes the body sees every day, restraining the systemic immune response to these commensal microbes and limiting the development of systemic immune dysregulation.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular Chemistry: Biochemistry Chemistry: Organic Chemistry Engineering: Nanotechnology Offbeat: Computers and Math Offbeat: General Offbeat: Plants and Animals
Published

Protein-based nano-'computer' evolves in ability to influence cell behavior      (via sciencedaily.com)     Original source 

The first protein-based nano-computing agent that functions as a circuit has been created. The milestone puts them one step closer to developing next-generation cell-based therapies to treat diseases like diabetes and cancer.

Computer Science: Artificial Intelligence (AI) Engineering: Robotics Research Mathematics: Statistics Offbeat: Computers and Math Offbeat: General Physics: General
Published

Effective as a collective: Researchers investigate the swarming behavior of microrobots      (via sciencedaily.com)     Original source 

Miniaturization is progressing rapidly in just any field and the trend towards the creation of ever smaller units is also prevalent in the world of robot technology. In the future, minuscule robots used in medical and pharmaceutical applications might be able to transport medication to targeted sites in the body. Statistical physics can contribute to the foundations for the development of such technologies.

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

'A blessing in disguise!' Physics turning bad into good      (via sciencedaily.com)     Original source 

Light is a very delicate and vulnerable property. Light can be absorbed or reflected at the surface of a material depending on the matter's properties or change its form and be converted into thermal energy. Upon reaching a metallic material's surface, light also tends to lose energy to the electrons inside the metal, a broad range of phenomena we call 'optical loss.' Production of ultra-small optical elements that utilize light in various ways is very difficult since the smaller the size of an optical component results in a greater optical loss. However, in recent years, the non-Hermitian theory, which uses optical loss in an entirely different way, has been applied to optics research.

Environmental: General Geoscience: Environmental Issues
Published

Plants remove cancer causing toxins from air      (via sciencedaily.com)     Original source 

A ground-breaking study has revealed that plants can efficiently remove toxic gasoline fumes, including cancer causing compounds such as benzene, from indoor air.

Chemistry: Biochemistry Energy: Alternative Fuels Energy: Fossil Fuels Energy: Technology Environmental: General
Published

Hydrogen battery: Storing hydrogen in coal may help power clean energy economy      (via sciencedaily.com)     Original source 

The quest to develop hydrogen as a clean energy source that could curb our dependence on fossil fuels may lead to an unexpected place -- coal. Scientists have found that coal may represent a potential way to store hydrogen gas, much like batteries store energy for future use, addressing a major hurdle in developing a clean energy supply chain.

Anthropology: General Archaeology: General Biology: Microbiology
Published

Early toilets reveal dysentery in Old Testament Jerusalem      (via sciencedaily.com)     Original source 

Study of 2,500-year-old latrines from the biblical Kingdom of Judah shows the ancient faeces within contain Giardia -- a parasite that can cause dysentery.

Chemistry: General
Published

Development of iron complex catalyst for selective and efficient conversion of methane to methanol      (via sciencedaily.com)     Original source 

A new iron complex has been developed as a catalyst for the oxidation of methane to selectively convert it to methanol. This complex can efficiently oxidize methane by internally trapping methane while preventing the overoxidation of the produced methanol. Using this complex, the direct and selective conversion of methane to methanol has been successfully achieved in an aqueous solution.

Energy: Technology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Forging a dream material with semiconductor quantum dots      (via sciencedaily.com)     Original source 

Researchers have succeeded in creating a 'superlattice' of semiconductor quantum dots that can behave like a metal, potentially imparting exciting new properties to this popular class of materials.

Computer Science: Artificial Intelligence (AI) Engineering: Robotics Research Offbeat: Computers and Math Offbeat: General
Published

Robots and Rights: Confucianism Offers Alternative      (via sciencedaily.com)     Original source 

As robots assume more roles in the world, a new analysis reviewed research on robot rights, concluding that granting rights to robots is a bad idea. Instead, the article looks to Confucianism to offer an alternative.

Mathematics: Modeling
Published

Using AI, scientists find a drug that could combat drug-resistant infections      (via sciencedaily.com)     Original source 

Using AI, researchers identified a new antibiotic that can kill Acinetobacter baumannii, a type of bacteria that is responsible for many drug-resistant infections.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Microbiology
Published

Research offers clues for potential widespread HIV cure in people      (via sciencedaily.com)     Original source 

New animal research is helping explain why at least five people have become HIV-free after receiving a stem cell transplant, and may bring scientists closer to developing what they hope will be a widespread cure for the virus that causes AIDS. A new study describes how two nonhuman primates were cured of the monkey form of HIV after receiving a stem cell transplant. It also reveals that two circumstances must co-exist for a cure to occur and documents the order in which HIV is cleared from the body.

Space: Astronomy Space: Astrophysics Space: General Space: Structures and Features Space: The Solar System
Published

The search for habitable planets expands      (via sciencedaily.com)     Original source 

Astronomers are suggesting a new way to expand the search for habitable planets that takes into account a zone not previously considered: the space between the star and what's called soot-line in planet-forming disks.

Chemistry: Biochemistry
Published

Brain imaging is on the move with wearable scanning development      (via sciencedaily.com)     Original source 

New research has demonstrated that a wearable brain scanner can measure brain function whilst people are standing and walking around. This breakthrough could help better understand and diagnose a range of neurological problems that affect movement, including Parkinson's Disease, stroke and concussion.