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Science News for April 19, 2019


Scientists identify a novel target for corn straw utilization

A team of scientists has identified a novel lignin gene, Zm4CL1, that controls the maize bm5 mutant with reduced lignin content. The study reveals increased forage digestibility and cell wall saccharification efficiency in the bm5 mutant.

SourceChinese Academy of Sciences Headquarters·JournalBiotechnology for Biofuels·DateApr 19, 2019
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

People with heart disease at risk when pharmacies close

Research from the University of Illinois Chicago shows that pharmacies closing leads to decreased adherence to heart medications like statins and beta-blockers. People living in low-access neighborhoods or using independent pharmacies are most affected.

SourceUniversity of Illinois Chicago·JournalJAMA Network Open·DateApr 19, 2019

Airbnb's explosive growth jolts hotel industry's bottom line

A study by Florida State University found Airbnb's exponential growth is devoureding hotel revenues and driving down room prices and occupancy rates. The company's listings have grown over 100% a year, significantly affecting hotels' room prices and revenues.

SourceFlorida State University·JournalTourism Management·DateApr 19, 2019

On-chip drug screening for identifying antibiotic interactions in eight hours

A KAIST research team created a microfluidic-based drug screening chip that identifies synergistic interactions between two antibiotics in just eight hours. This technology can aid in exploring critical pharmacological patterns of antibiotic interactions and guide clinical therapies.

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·JournalLab on a Chip·DateApr 19, 2019
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

A universal framework combining genome annotation and undergraduate education

A new workflow combines genome annotation with undergraduate education, providing efficient training for both researchers and students. The framework uses a set of logical steps to begin an undergraduate annotation program, resulting in high-quality genome annotations and valuable skills for future careers.

SourceBoyce Thompson Institute·JournalPLOS Computational Biology·DateApr 19, 2019

Study shows continuing impacts of Deepwater Horizon oil spill

The study reveals that restoration of marsh vegetation is crucial for overall recovery after the Deepwater Horizon oil spill. The research found that planting foundation species like Spartina alterniflora can facilitate colonization by burrowing invertebrates and fuel the food web, leading to a faster recovery.

SourceVirginia Institute of Marine Science·JournalEstuaries and Coasts·DateApr 19, 2019

Researchers report high performance solid-state sodium-ion battery

The organic cathode offers more reliable contact with the electrolyte, extending cycle life and allowing for higher energy density. The flexibility of the organic cathode maintains intimate contact at the interface even as the cathode expands and contracts during cycling.

SourceUniversity of Houston·JournalJoule·DateApr 19, 2019
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Russian blue chips prove their pricing potential

Researchers from HSE University and London Business School analyzed Russian companies' stock prices and found profitable arbitrage deals with minimal risk. The 'buy-and-hold' strategy tends to generate higher returns than conversion strategies, despite being riskier.

SourceNational Research University Higher School of Economics·JournalEmerging Markets Finance and Trade·DateApr 19, 2019

Light, physical activity reduces brain aging

Researchers found that light-intensity physical activity is associated with larger brain volume and healthy brain aging. The study suggests that achieving even moderate levels of physical activity may be beneficial for preventing dementia.

SourceBoston University School of Medicine·JournalJAMA Network Open·DateApr 19, 2019

Marijuana users weigh less, defying the munchies

Research suggests marijuana users are more likely to maintain a healthy weight compared to those who don't use cannabis. The study of over 33,000 participants found that persistent users were less likely to be overweight or obese.

SourceMichigan State University·JournalInternational Journal of Epidemiology·DateApr 19, 2019
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Decoding cellular signals linked to hypospadias

Researchers have discovered a unique subset of cells in the developing urethra that send important signals defining how the urethra is formed. This discovery aims to standardize the characterization of hypospadias and improve treatment outcomes for affected children.

SourceChildren's National Hospital·DateApr 19, 2019

Video plus brochure helps patients make lung cancer scan decision

A short video describing lung cancer screening benefits and risks, combined with an informational brochure, increased patients' knowledge and reduced conflicted feelings about the scan. Participants who watched the video as well as read the booklet were more certain of their decision to undergo the scan.

SourceAmerican Thoracic Society·JournalAnnals of the American Thoracic Society·DateApr 19, 2019

Through thick and thin: Neutrons track lithium ions in battery electrodes

Researchers employed neutron-imaging techniques to track lithiation and delithiation processes in lithium-ion batteries' materials and structures. The study aimed to understand how lithium moves through electrode materials, essential for designing faster-charging batteries.

SourceUniversity of Virginia School of Engineering and Applied Science·JournalJournal of Power Sources·DateApr 19, 2019

Collecting the right quantity of evidence: How the brain makes a difficult decision

Two studies investigate perceptual decision making in rats and humans, showing that the brain compares incoming sensory evidence to express a decision as soon as it reaches a fixed boundary. The findings support the 'bounded integration' model, which explains how the nervous system accumulates information over time.

SourceScuola Internazionale Superiore di Studi Avanzati·JournalCurrent Biology·DateApr 19, 2019
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Study finds that quitting smoking during pregnancy lowers risk of preterm births

A Dartmouth-led study published in JAMA Network Open found that quitting smoking during pregnancy reduces the risk of preterm birth. The probability of preterm birth decreased by up to 20% if cessation occurred at the beginning of pregnancy. However, only about 25% of women who smoked prior to pregnancy were able to quit throughout the...

SourceThe Geisel School of Medicine at Dartmouth·JournalJAMA Network Open·DateApr 19, 2019

Mysterious river dolphin helps crack the code of marine mammal communication

Researchers have discovered that Araguaian river dolphins use hundreds of different sounds to communicate with each other, including short calls for mother-child interaction and longer whistles for maintaining distance. The unique acoustic characteristics of these sounds may have evolved to avoid echoes in their aquatic habitat.

SourceUniversity of Vermont·JournalPeerJ·DateApr 19, 2019

Thermodynamic magic enables cooling without energy consumption

Physicists at the University of Zurich have created a device that can cool objects to below room temperature without external power supply. The process involves oscillating heat currents and temporarily flows from cold to warm objects, increasing entropy over time.

SourceUniversity of Zurich·JournalScience Advances·DateApr 19, 2019
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Weapons trade reveals a darker side to dark web

Research published in Deviant Behavior found that the dark web is a hub for anonymous handgun sales, with 64% of products advertised being handguns. The study sheds light on a niche market where buyers can circumvent stricter gun laws, highlighting the need for further investigations and potential regulation.

SourceMichigan State University·JournalDeviant Behavior·DateApr 19, 2019

Plants are also stressed out

Researchers discover GUN1 plays a crucial role in regulating chloroplast-to-nucleus communication, enabling plants to respond to stress. This finding may help breed plants that can better withstand environmental stressors and maintain food production.

SourceSalk Institute·JournalProceedings of the National Academy of Sciences·DateApr 19, 2019