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Science News for August 16, 2021


Beating the curse of dimensionality

A KAUST-led research team has developed a prediction scheme that can more reliably forecast future environmental trajectories by integrating information from past complete and partial data. This approach, called partial functional prediction (PFP), captures both long-term trends and well-matched partial trajectories to achieve improved...

SourceKing Abdullah University of Science & Technology (KAUST)·JournalJournal of the American Statistical Association·TypeData/statistical analysis·DateAug 16, 2021

Heavily enriched: An energy-efficient way of enriching hydrogen isotopes in silicon

Researchers at Nagoya City University find a fourfold increase in surface deuterium atoms on nanocrystalline silicon, paving the way for sustainable deuterium enrichment protocols. The efficient exchange reaction could lead to more durable semiconductor technology and potentially purify tritium contaminated water.

SourceNagoya City University·JournalPhysical Review Materials·TypeExperimental study·DateAug 16, 2021

Local perceptions obscure COVID risk during pandemic

A study finds that local perceptions of COVID-19 risk often don't align with national infection rates, leading to inconsistent public behavior. The research suggests that community-level organizations and high-level institutions need to work together to provide accurate information and support individuals in understanding the risks.

SourceCarnegie Mellon University·JournalDecision·TypeSurvey·DateAug 16, 2021

Researchers publish new theory of life’s multiple origins

Researchers Chris Kempes and David Krakauer present a new three-layered framework to recognize life's full range of forms. By considering the space of possible materials, constraints, and optimization processes, they argue that life can originate multiple times, taking on diverse forms such as culture, computation, and forests.

SourceSanta Fe Institute·JournalJournal of Molecular Evolution·DateAug 16, 2021

DOE-funded study will explore how magnetic materials could improve the performance of quantum computing circuits

Researchers at University of Illinois and Argonne National Laboratory will explore magnetic materials to reduce noise in quantum computing hardware. The team aims to design non-reciprocal circuitry by harnessing magnetic features, which could lead to a hybrid device for sensing and communication applications.

Pandemic and digitalization set stage for revival of a cast-off idea: personal carbon allowances

A recent study suggests that personal carbon allowances (PCAs) may be a feasible solution to reduce emissions and promote sustainable lifestyles. The researchers propose a market-based approach to provide individuals with incentives and options to link their actions with global carbon reduction goals.

SourceKTH, Royal Institute of Technology·JournalNature Sustainability·TypeMeta-analysis·DateAug 16, 2021

Woven nanotube fibers turn heat into power

Researchers have developed a new material that can convert heat into energy, with potential applications in textiles and electronics. The woven nanotube fibers show promise as building blocks for fiber and textile electronics, and could also be used to cool sensitive electronics.

SourceRice University·JournalNature Communications·TypeExperimental study·DateAug 16, 2021

Breaching tipping points would increase economic costs of climate change impacts

Researchers have created a new model that estimates the economic impacts of climate tipping points, such as disintegration of the Greenland Ice Sheet. The study finds that exceeding these tipping points could lead to increased economic costs of climate change impacts by up to 25%.

SourceGrantham Research Institute on Climate Change and the Environment·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateAug 16, 2021

First genetic sequencing of Brazilian pit viper is completed

Researchers completed the first genetic sequencing of a Brazilian snake's genome, revealing that most toxin genes likely arose from existing functions in ancestral species. The study identified markers for comparing toxin genes with non-toxic 'ancestral' genes, shedding light on the evolution of venom production.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalProceedings of the National Academy of Sciences·DateAug 16, 2021

Pollinators: First global risk index for species declines and effects on humanity

A new global risk index highlights the alarming decline of pollinators, which are crucial for food production and ecosystem services. The top causes of pollinator loss include habitat destruction, pesticide use, and climate change, with serious consequences for human populations, particularly in the Global South.

SourceUniversity of Cambridge·JournalNature Ecology & Evolution·TypeSystematic review·DateAug 16, 2021

The Arctic Ocean’s deep past provides clues to its imminent future

A team of scientists from Princeton University found that the Arctic Ocean's nitrogen supply is limited by strong stratification, preventing plankton growth and potentially affecting fish populations. The research used fossilized plankton to study the history of nitrogen sources and supply rates in the western and central Arctic Ocean.

SourcePrinceton University·JournalNature Geoscience·TypeData/statistical analysis·DateAug 16, 2021

Next generation electronics: Expanding the possibilities with silver nanowires

Researchers from Terasaki Institute for Biomedical Innovation developed a method to fabricate ultrathin gold shells around silver nanowires, improving their stability and effectiveness. The gold-coated nanowires showed superior durability and performance in various tests, outperforming commercial nanowires.

SourceTerasaki Institute for Biomedical Innovation·JournalNano Research·TypeExperimental study·DateAug 16, 2021

Herbicide resistance no longer a black box for scientists

Researchers identify gene regions responsible for non-target-site herbicide resistance in waterhemp, a key step towards early detection and management tools. By analyzing the genome of waterhemp, scientists have narrowed down the genetic regions controlling resistance to two areas, paving the way for further studies.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalPest Management Science·TypeRandomized controlled/clinical trial·DateAug 16, 2021

Widespread pain linked to heightened dementia and stroke risk

Research finds widespread pain associated with a heightened risk of all types of dementia, including Alzheimer's disease, and stroke. People with widespread pain were 43% more likely to have any type of dementia and 47% more likely to have Alzheimer's disease compared to those without widespread pain.

SourceBMJ Group·JournalRegional Anesthesia & Pain Medicine·TypeObservational study·DateAug 16, 2021

Getting under the skin: Tracing prevalence of skin diseases in type 2 diabetes mellitus

A new study examining the association between type 2 diabetes mellitus and skin diseases reveals a strong link between the two conditions. The research, published in Chinese Medical Journal, found that 93.5% of individuals with T2DM had skin problems, including over 47 types of comorbid skin diseases.

SourceCactus Communications·JournalChinese Medical Journal·TypeRandomized controlled/clinical trial·DateAug 16, 2021

From coral reef to goat ranch: Uncovering the botanical history of the Guadalupe Mountains

Researchers sequenced DNA from plant specimens collected nearly 50 years ago to analyze genetic diversity and its response to climate change. The study found that several species restricted to the Guadalupe Mountains had surprisingly high amounts of genetic diversity, which could help them adapt to changing conditions.

SourceBotanical Society of America·JournalApplications in Plant Sciences·DateAug 16, 2021

Existing drug may help improve responses to cellular therapies in advanced leukemias

Researchers at the University of Pennsylvania School of Medicine have identified a new mechanism of resistance in advanced chronic lymphocytic leukemia (CLL) patients to CAR T cell therapy. They found that inhibiting the BET protein with the small molecule inhibitor JQ1 can reinvigorate exhausted T cells and increase their production.

SourceUniversity of Pennsylvania School of Medicine·JournalJournal of Clinical Investigation·TypeExperimental study·DateAug 16, 2021

History of the spread of pepper (C. annuum) is an early example of global trade

Genomic data analyzed over 10,000 pepper samples from worldwide genebanks to reconstruct the history of pepper's global expansion. The study found significant duplication of samples and regions with unique peppers, indicating human culture played a primary role in shaping pepper's spread globally.

SourceLeibniz Institute of Plant Genetics and Crop Plant Research·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateAug 16, 2021

New analysis reveals how region-wide policies might be ineffective in eliminating local risk factors for coronavirus spread

Researchers found regional lockdowns did not sufficiently address local COVID-19 risk differences in Italy. Instead, targeted interventions focused on high-risk areas could help strike a better balance between public health and economic damage. The study provides guidance for policy-makers to design effective interventions.

SourceUniversity of Warwick·JournalThe Lancet Regional Health - Europe·DateAug 16, 2021

Scientists with the help of computer modeling discover a substance that blocks coronavirus

Researchers at South Ural State University used computer modeling to identify a substance that can block the spread of coronavirus. The study found that ligands must match RNA polymerase as closely as possible to be effective, and scientists have developed an equation to test other ligands' effectiveness on receptors.

SourceSouth Ural State University·JournalMolecules·TypeComputational simulation/modeling·DateAug 16, 2021

Berkeley Lab science snapshots

Researchers at Berkeley Lab have made significant breakthroughs in developing a highly effective COVID-19 antibody therapy and an efficient thermoelectric system that can convert waste heat to electricity. The new antibody, S309, has been shown to neutralize all known SARS-CoV-2 strains and may be more difficult for new mutants to escape.

Survivors of trauma struggle to move on from the loss of loved ones

A study found that trauma survivors who experienced post-traumatic stress disorder (PTSD) symptoms were more likely to experience complicated grief, a type of prolonged and intense sorrow. Researchers suggest that treating PTSD symptoms early may help prevent persistent grief in the long term.

SourceAmerican Psychological Association·JournalPsychological Trauma Theory Research Practice and Policy·TypeObservational study·DateAug 16, 2021

Chaos in the brain

A defective KCNQ3 channel disrupts the brain's navigation system, leading to disorganized place cell activity patterns. This study provides new insights into the role of KCNQ3 channels in Alzheimer's disease and other cognitive disorders, suggesting potential targets for future drug research.

SourceFriedrich-Alexander-Universität Erlangen-Nürnberg·JournalNature Communications·DateAug 16, 2021

Insects’ sense of smell gives insight into better repellent design and drug screening

Researchers studied insect olfactory system to improve repellent design and drug screening. They found that chemoreceptor tuning depends on ligand-binding subunit identity, revealing diverse molecular mechanisms. These findings have potential applications in 'mammalian' chemogenetics and insect-based research.

SourceSkolkovo Institute of Science and Technology (Skoltech)·JournalMolecular Biology Reports·TypeExperimental study·DateAug 16, 2021

Antipsychotics during pregnancy

This observational study found no association between prenatal antipsychotic exposure and increased risk of preterm birth, attention-deficit/hyperactivity disorder (ADHD), and autism spectrum disorder in children. The study's findings suggest that antipsychotics during pregnancy do not pose a significant risk to fetal development.

SourceJAMA Network·JournalJAMA Internal Medicine·DateAug 16, 2021

Evaluation of data from a large-scale SARS-CoV-2 surveillance study reveals that comorbidities predict positive RT-PCR testing. Study finds equal risk of asymptomatic infection among children, teenagers, and working-age adults

A large-scale surveillance study in Madurai, India, found that comorbidities are a significant predictor of positive RT-PCR testing. The study also revealed an equal risk of asymptomatic infection among children, teenagers, and working-age adults, highlighting the importance of non-communicable disease control in COVID-19 containment s...

SourceCenter for Disease Dynamics, Economics & Policy·JournalThe Lancet Infectious Diseases·DateAug 16, 2021