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Science News Archive February 2020 - Page 10


Page 10 of 40

Why monkeys choose to drink alone

Researchers at Yale University found a unique brain signature associated with pro-social and anti-social decisions in monkeys. Monkeys prefer to drink alone when faced with the option of sharing fruit juice with another monkey.

SourceYale University·JournalNature Neuroscience·DateFeb 24, 2020

As oceans warm, fish flee

A new study warns that ocean warming will lead to the loss of commercial fish species, with tropical nations facing significant economic and ecological impacts. The research highlights the lack of policy interventions to address this issue, but suggests that international cooperation could mitigate losses and preserve resources.

SourceUniversity of Delaware·JournalNature Sustainability·DateFeb 24, 2020

Antibodies: the body's own antidepressants

Researchers have found that autoantibodies against the NMDA receptor can reduce symptoms of depression and anxiety when they enter the brain. The level of these autoantibodies increases with age and is higher in people subjected to chronic stress, but may also play a positive role in reducing depressive symptoms.

SourceMax-Planck-Gesellschaft·JournalMolecular Psychiatry·DateFeb 24, 2020

When coronavirus is not alone

A team of complexity scientists have developed a 'meme' model for multiple diseases, revealing that interacting contagious diseases follow the same complex spreading patterns as social trends. The study found that even one more contagion can dramatically shift dynamics and trigger macroscopic jumps in epidemic size.

SourceUniversity of Vermont·JournalNature Physics·DateFeb 24, 2020

Swarming robots avoid collisions, traffic jams

Researchers at Northwestern University developed a decentralized algorithm that enables swarms of robots to form shapes and avoid collisions. The algorithm views the ground as a grid, allowing each robot to sense its closest neighbors and make local decisions without global information.

SourceNorthwestern University·JournalIEEE Transactions on Robotics·DateFeb 24, 2020

Defects add color to quantum systems

Researchers at Stanford University have found a way to identify and control colorful defects in hexagonal boron nitride, a material that can emit bright light as a single photon. This breakthrough has the potential to create predictable sources of quantum light, a crucial component for future quantum technologies.

SourceStanford University·JournalNature Materials·DateFeb 24, 2020

The 'purrfect' music for calming cats

Researchers at LSU found that cats were less stressed when played cat-specific music, with lower cat stress scores and handling scale scores compared to classical music and no music. The study suggests that cat-specific music may benefit both cat welfare and owner experience.

SourceSAGE·JournalJournal of Feline Medicine and Surgery·DateFeb 24, 2020

'Make two out of one' -- division of artificial cells

Researchers at Max Planck Institute have achieved unprecedented control over the shape transformations and division process of artificial cells by anchoring low densities of proteins to the cell membranes. This simplified mechanism does not depend on precise molecular interactions, making it a promising tool for synthetic biology.

SourceMax-Planck-Gesellschaft·JournalNature Communications·DateFeb 24, 2020

The seismicity of Mars

The NASA InSight lander has recorded over 450 marsquakes on Mars, providing insights into the planet's internal structure and tectonic activity. The data reveals a stronger attenuation in the upper mantle compared to the lower mantle, indicating a more fractured crust.

SourceETH Zurich·JournalNature Geoscience·DateFeb 24, 2020

Extra chromosomes in cancers can be good or bad

Research reveals some extra chromosomes in cancer cells can inhibit metastasis and even increase survival rates for patients. A study published in Developmental Cell found beneficial aneuploidies associated with increased survival, contrary to the long-held notion that aneuploidy always skews gene activity towards aggressive cancers.

SourceCold Spring Harbor Laboratory·JournalDevelopmental Cell·DateFeb 24, 2020

The dangers facing fireflies

Fireflies face numerous threats, including habitat loss and artificial light pollution, which can harm their bioluminescent displays and overall survival. Conservation efforts, such as preserving habitats and reducing insecticide use, can help improve firefly populations and mitigate these threats.

Rice scientists simplify access to drug building block

The Rice University team has introduced an inexpensive organic synthesis technique that catalyzes the transfer of nitrogen atoms to olefins, making valuable pharmaceutical precursors. The process combines nitrogen and hydrogen atoms in triangular aziridine products, which are readily available to react with other agents.

SourceRice University·JournalNature Catalysis·DateFeb 24, 2020

Marijuana use among older adults in US

A study analyzing national survey data found that cannabis use increased significantly among women, racial/ethnic minorities, and those with higher incomes or education levels. The proportion of adults who reported past-year marijuana use rose from 2.4% to 4.2% between 2015-2018.

SourceJAMA Network·JournalJAMA Internal Medicine·DateFeb 24, 2020

'CRISPR: A Screener's Guide' headlines the March edition of SLAS Discovery

The discovery of CRISPR-Cas9 systems has revolutionized pharmaceutical research by allowing for industrial-scale gene editing and functional genomic screening. This enables the identification of new biological targets for precision medicines and the exploration of mechanisms of drug resistance and sensitivity ahead of clinical trials.

Neural cells speed up function in 3D bioprinted skeletal muscle constructs

Researchers at Wake Forest Institute for Regenerative Medicine have developed a way to accelerate functional muscle regeneration by integrating neural cells into 3D bioprinted skeletal muscle constructs. The study, published in Nature Communications, demonstrates the potential for these constructs to restore normal muscle weight and fu...

SourceAtrium Health Wake Forest Baptist·JournalNature Communications·DateFeb 24, 2020

How earthquakes deform gravity

A new algorithm can detect changes in gravity caused by earthquakes, potentially leading to earlier warnings and more accurate predictions. The signal is generated by the sudden shift in the earth's internal mass during an earthquake, and its detection could help identify strong earthquakes that may trigger tsunamis.

SourceGFZ GeoForschungsZentrum Potsdam, Helmholtz Centre·JournalEarth and Planetary Science Letters·DateFeb 21, 2020

Study detects abnormally low levels of a key protein in brains of young men with autism

Researchers at Massachusetts General Hospital used cutting-edge imaging technology to detect abnormally low levels of a key protein in the brains of young men with autism. The study suggests that these low levels may be linked to inflammation and metabolism, and could have important implications for understanding the origins of autism.

SourceMassachusetts General Hospital·JournalMolecular Psychiatry·DateFeb 21, 2020