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Science News for November 11, 2020


Virtual reality forests could help understanding of climate change

A virtual reality forest created by geographers can let people walk through a simulated forest of today and see potential future scenarios. The researchers used data on a typical Wisconsin forest to create a more organic, natural feel, allowing visitors to experience the changes brought on by climate change.

SourcePenn State·JournalInternational Journal of Geographical Information Science·DateNov 11, 2020

Losing the American Dream

A recent study published in Demography found that Black homeowners are twice as likely to lose their homes compared to white homeowners, with kin network wealth and poverty accounting for a significant portion of the gap. The researchers examined the impact of trigger events and found that having impoverished relatives can be a burden,...

SourceDartmouth College·JournalDemography·DateNov 11, 2020

Robotic AI learns to be spontaneous

Researchers developed a new method for designing spontaneous behaviors in robots, inspired by complex temporal patterns in animal brains. The approach uses high-dimensional chaos and reservoir computing to implement humanlike cognitive functions.

SourceUniversity of Tokyo·JournalScience Advances·DateNov 11, 2020

National study reveals new insights into avoidable harm in primary care

A national study of general practices in England found that diagnostic error (60%), medication incidents (25%), and delayed referrals (11%) are the main causes of avoidable harm. Researchers identified patient factors such as old age and multiple health problems, highlighting challenges in protecting patients from harm.

Tips for making nanographene

Researchers at the University of Tokyo have developed a new and efficient way to create nanographene, a material that is expected to revolutionize technology. The method uses an atomic force microscope (AFM) to precisely control the fabrication process, allowing for the creation of tailored nanographene formations.

SourceUniversity of Tokyo·JournalNano Letters·DateNov 11, 2020

New insights into facial birth defects are revealed by Mount Sinai researchers

The study, published in Genes and Development, reveals the role of signaling pathways in regulating cell behavior, including proliferation, death, and migration. The research team identified new signaling outputs that function independently of established FGF signal transduction pathways, particularly in cell adhesion.

Protein in blood may predict prognosis, recovery from stroke

Researchers found that neurofilament light protein levels in the blood can predict stroke severity and prognosis, as well as anticipate future recovery. Higher NFL levels forecast worse functional outcomes and shorter survival time after a stroke. This discovery establishes NFL as a promising prognostic biomarker for stroke.

SourceMayo Clinic·JournalScience Translational Medicine·DateNov 11, 2020

Sorting out viruses with machine learning

Researchers at Osaka University have created a label-free method for identifying respiratory viruses based on changes in electrical current through silicon nanopores. This new system uses machine learning to achieve highly accurate virus classification, with potential applications for COVID-19 and influenza diagnosis.

SourceOsaka University·JournalACS Sensors·DateNov 11, 2020

DNA repair supports brain cognitive development

Researchers at Osaka University found that Polβ prevents DNA breaks in brain cells of the hippocampus during early postnatal development, supporting cognitive development. The study also reveals a link between DNA demethylation and increased double-stranded breaks, which can lead to altered gene expression and impaired memory formation.

UTSA research team makes breakthrough discovery on brain cortex functionality

A team of UTSA researchers discovered long-range parvalbumin-expression neurons from the cortex to the striatum in mouse brains, challenging the exclusive local organization of cortical circuit neurons. This finding could lead to new treatments for epilepsy, PTSD, schizophrenia, and other mental conditions involving GABAergic neurons.

SourceUniversity of Texas at San Antonio·JournalFrontiers in Neural Circuits·DateNov 11, 2020

Climate-adapted plant breeding

Researchers are harnessing the genetic potential of old crop varieties, known as landraces, to develop improved climate-adapted hybrid varieties. By analyzing gene variations, they have identified traits such as early plant development, wind resistance, and growth form that can be beneficial in breeding climate-resilient crops.

SourceTechnical University of Munich (TUM)·JournalNature Communications·DateNov 11, 2020

Modelling microswimmers for drug delivery

Researchers developed mathematical models to study microswimmers in clean and surfactant-covered viscous drops, revealing significant alterations in behavior due to the presence of surfactant. These models may aid in designing artificial microswimmers for targeted drug delivery, micro-surgery, and other applications.

SourceSpringer·JournalThe European Physical Journal E·DateNov 11, 2020

Learning pathways could guide children who miss best start to improved literacy by age 11

Research finds no direct link between early language environment and literacy skills at age 11, but suggests identifying 'learning pathways' during primary school can help teachers devise personalized strategies to support children who fell behind. The study used data from over 7,000 children to map out the interdependencies between ea...

SourceUniversity of Cambridge·JournalOxford Review of Education·DateNov 11, 2020

Novel population of neurons identified that control binocular eye movements in 3D space

Researchers at the University of Alabama at Birmingham have identified a novel population of neurons, called saccade-vergence burst neurons (SVBNs), that control disjunctive saccades in 3D space. These findings could lead to new treatments for strabismus, a condition where eyes don't properly align.

SourceUniversity of Alabama at Birmingham·JournalProceedings of the National Academy of Sciences·DateNov 11, 2020

Governments can curb over-fertilisation

A recent study published in Nature Food found that countries have a significant impact on nitrogen pollution, often multiple times greater than their effect on crop yields. Countries can curb fertiliser use without compromising yield by adjusting institutions, economic development, population size, and farm production processes.

SourceETH Zurich·JournalNature Food·DateNov 11, 2020

Cassava may benefit from atmospheric change more than other crops

A recent study found that cassava can maintain its nutritional quality and photosynthetic efficiency even under elevated carbon dioxide levels. The crop showed significant yield increases of 22-39% in various varieties, making it a promising option for smallholder farmers in sub-Saharan Africa.

Sleep loss hijacks brain's activity during learning

A new study shows that getting only half a night's sleep hijacks the brain's activity during learning and memory consolidation, leading to increased vulnerability to conditions like anxiety and posttraumatic stress disorder. The research found that even partial sleep deprivation can be worse than no sleep at all.

Born to be young?

A new study found that prenatal exposure to maternal thyroid hormones can result in longer telomeres in chicks, making them appear younger at birth. This could have significant implications for understanding the effects of telomere length on aging and mortality risk.

SourceUniversity of Turku·JournalBiology Letters·DateNov 11, 2020

Former NFL players may not suffer more severe cognitive impairment than others, study indicates

A UT Southwestern study found that retired football players with a history of concussions and mild cognitive impairment (MCI) scored similarly to non-athletes on verbal memory and learning tests. However, they showed lower scores on naming tests, which may be related to age-related decline rather than concussion effects.

SourceUT Southwestern Medical Center·JournalCognitive and Behavioral Neurology·DateNov 11, 2020

Cloth face masks that can be disinfected by the sun

Researchers have developed a special type of cotton fabric that releases reactive oxygen species when exposed to daylight, killing microbes attached to its surface while being washable and reusable. The fabric showed promise in reducing the spread of diseases like COVID-19 by killing 99.9999% of bacteria and viruses within 60 minutes.

SourceAmerican Chemical Society·JournalACS Applied Materials & Interfaces·DateNov 11, 2020

Observation of four-charm-quark structure

The LHCb collaboration observes two structures in proton-proton collisions, suggesting the existence of four-charm tetraquark states. The narrower structure is described as a hadron state of mass about 6900 MeV/c2, denoted as X(6900). Understanding the internal structure of hadrons remains a challenge, with QCD models unable to explain...

SourceScience China Press·JournalScience Bulletin·DateNov 11, 2020

Targeted therapies developed to reduce lung fibrosis

Researchers have developed two novel targeted therapies to slow down or stop fibrosis progression in people with idiopathic pulmonary fibrosis (IPF). These treatments aim to deliver potent drugs specifically to diseased cells, minimizing harm to healthy ones. The therapies will soon enter human clinical trials.

SourcePurdue University·JournalScience Translational Medicine·DateNov 11, 2020

COVID-19 news from Annals of Internal Medicine

Researchers describe the rapid deployment of a virtual hospital program during the COVID-19 pandemic, finding potential benefits in providing additional inpatient capacity. Meanwhile, a study on 60-day postdischarge outcomes among patients hospitalized with COVID-19 reveals ongoing morbidity and financial loss for most survivors.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateNov 11, 2020

Folding proteins feel the heat, and cold

Researchers refine theories on protein interactions with solutions, discovering new factors influencing folding, including thermal expansion and temperature. Atom-scale models reveal complex interactions between solvents and peptides, potentially changing our understanding of hydrophobic and hydrophilic effects.

SourceRice University·JournalThe Journal of Physical Chemistry Letters·DateNov 11, 2020

Yale scientists identify protein that protects against Lyme

Researchers at Yale University have discovered a protein called Peptidoglycan Recognition Protein 1 (PGLYRP1) that helps protect hosts from infection with the Lyme spirochete. The study, published in PLOS Pathogens, found that mice lacking this protein had higher levels of the bacteria and showed signs of immune system dysfunction.

SourceYale University·JournalPLOS Pathogens·DateNov 11, 2020

Attosecond boost for electron microscopy

Researchers at University of Konstanz and Ludwig-Maximilians-Universität München develop a prototypical attosecond electron microscope (A-TEM) that enables visualization of light-matter interactions at attosecond speeds. This breakthrough can facilitate the exploration of atomic origins of light-matter interactions in complex materials...

SourceUniversity of Konstanz·JournalScience Advances·DateNov 11, 2020