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Science News Archive May 2016 - Page 5


Page 5 of 38

Beating the limits of the light microscope, one photon at a time

Researchers at Colorado State University have developed a technique to simultaneously image with multiphoton fluorescence and second-harmonic generation, achieving nanoscale resolution. This breakthrough enables the observation of previously inaccessible structures in living tissue, opening up new avenues for biological research.

SourceColorado State University·JournalProceedings of the National Academy of Sciences·DateMay 26, 2016

Astronomers find giant planet around very young star

Researchers at Rice University have discovered a giant planet, CI Tau b, orbiting a young star in the constellation Taurus. The planet, at least eight times larger than Jupiter, orbits its 2 million-year-old star every nine days and is thought to have formed rapidly, with surrounding gas and dust still present.

Mimicking deep sleep brain activity improves memory

The study found that artificially applying synchronous slow wave brain activity during non-REM sleep can enhance memory consolidation, allowing mice to retain memories for up to 4 days. This discovery suggests a potential route to therapy using transcortical magnetic or direct-current stimulation to reactivate sleep-deprived neurons.

SourceRIKEN·JournalScience·DateMay 26, 2016

Alternative odor receptors discovered in mice

Harvard researchers have identified a new mechanism for detecting odors in mammals, using 'necklace' neurons that express MS4A proteins to respond to specific smells like nuts and pheromones. This discovery revises the canonical view of how animals probe their chemical environment.

SourceCell Press·JournalCell·DateMay 26, 2016

Doubling down on Schrödinger's cat

A team of Yale scientists has created a more exotic type of Schrödinger's cat-like state that can exist in two boxes simultaneously, leveraging entanglement to enable error correction and logical operations in quantum computing. This breakthrough builds upon decades of development in circuit quantum electrodynamics.

SourceYale University·JournalScience·DateMay 26, 2016

Potential impact of a dengue vaccine in the Yucatan

A dengue vaccine has the potential to substantially reduce disease burden if it induces long-lasting immunity. Researchers found that a durable vaccine, with booster doses, can reduce annual dengue incidence by up to 80% within five years.

SourcePLOS·JournalPLOS Neglected Tropical Diseases·DateMay 26, 2016

Spring snow a no-go?

A University of Utah study suggests that spring snowpack in higher elevations will be more dependent on precipitation than temperature in a warming climate. By the end of the century, the threshold elevation for temperature-controlled snowpack is expected to rise by around 800 feet, affecting ski resorts and water resources.

SourceUniversity of Utah·JournalGeophysical Research Letters·DateMay 26, 2016

Why malnutrition is an immune disorder

New evidence suggests that even with a healthy diet, defects in immune system function from birth can contribute to malnourished states throughout life. Researchers propose targeting immune pathways as a potential approach to reducing poor health and mortality caused by under- and overnutrition.

SourceCell Press·JournalTrends in Immunology·DateMay 26, 2016

First discovery in United States of colistin resistance in a human E. coli infection

A transferrable gene for colistin resistance has been discovered in the United States, raising concerns about the emergence of truly pan-drug resistant bacteria. The finding is a significant public health concern, as it may render colistin, the last agent used to combat resistant bacteria, ineffective.

SourceThe U.S. Military HIV Research Program (MHRP)·JournalAntimicrobial Agents and Chemotherapy·DateMay 26, 2016

Finding a new formula for concrete

Researchers at MIT have designed a new bioinspired framework to improve concrete's strength and durability. By studying natural materials such as bones and shells, they have developed guidelines for engineers to design cement with precise control over its internal structure and properties.

SourceMassachusetts Institute of Technology·JournalConstruction and Building Materials·DateMay 26, 2016

Odor alternative

Researchers at Harvard Medical School discover a novel logic for mammalian olfaction that defies the traditional one-to-one correspondence between odors and receptors. The 'olfactory necklace' system uses a different class of chemoreceptors to detect carbon dioxide and other molecules, triggering innate behaviors such as avoidance.

SourceHarvard Medical School·JournalCell·DateMay 26, 2016

Could optical clocks redefine the length of a second?

Optical atomic clocks have shown improved accuracy and stability compared to traditional microwave clocks, making them suitable for global timekeeping. By combining optical clocks with masers, researchers achieved a time error of less than 0.20 nanoseconds over 25 days.

SourceOptica·JournalOptica·DateMay 25, 2016

Current atmospheric models underestimate the dirtiness of Arctic air

Current simulation models consistently underestimate black carbon aerosols in Arctic air, but fine-grained simulations using powerful supercomputers can mitigate this underestimation. The research found that more realistic modeling of weather and climate patterns is possible with finer grids and larger computational power.

SourceRIKEN·JournalScientific Reports·DateMay 25, 2016