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Science News for July 1, 2021


New data science platform speeds up Python queries

Researchers from Brown University and MIT developed Tuplex, a new data science framework that compiles custom logic written in Python, reducing wait times to seconds. The platform also handles anomalous data by extracting and setting it aside, allowing users to repair anomalies after the program completes.

Reducing plastic waste will require fundamental change in culture

A study by Research Institute for Sustainability reveals that barriers to reducing plastic packaging consumption include habits, lack of knowledge, hygiene concerns, and economic factors. To achieve zero-waste shopping, cultural and infrastructural changes are necessary, including making alternative options more affordable and convenient.

SourceResearch Institute for Sustainability (RIFS) – Helmholtz Centre Potsdam·JournalCleaner and Responsible Consumption·DateJul 1, 2021

Antidiabetic drug causes double the weight loss of competitor in Type 2 diabetes patients

A University at Buffalo-led study found that SGLT2 inhibitors cause a median weight loss of over 6 pounds in Type 2 diabetes patients, compared to 2.5 pounds with GLP-1 receptor agonists. The findings suggest that SGLT2 inhibitors may be more protective against weight gain caused by other antidiabetic drugs.

SourceUniversity at Buffalo·JournalJournal of the American Pharmacists Association·DateJul 1, 2021

Moderna and Pfizer-BioNTech vaccines prime T cells to fight SARS-CoV-2 variants

Researchers at La Jolla Institute for Immunology found that people who recovered from COVID-19 or received Moderna or Pfizer-BioNTech vaccines have cross-reactive T cells that can target several SARS-CoV-2 variants. This reactivity is key to the body's immune response, allowing it to kill infected cells and stop severe infections.

SourceLa Jolla Institute for Immunology·JournalCell Reports Medicine·DateJul 1, 2021

Benefits of acute aerobic exercise on cognitive function: Why do 50% of studies find no connection?

A recent meta-analysis found that acute aerobic exercise temporarily improves cognitive performance. However, approximately 50% of studies failed to show a link between the two. The analysis revealed that benefits were greater in those with lower pre-test scores and were more generalized across different types of cognitive performance.

SourceKobe University·JournalNeuroscience & Biobehavioral Reviews·DateJul 1, 2021

Unfinding a split electron

Researchers from Austria, Copenhagen, and Madrid found that a valid signal for Majorana zero modes, crucial for topological qubits, can be a false flag. By varying the nanowire setup, they discovered that a specific architecture causes a mimicking signal, leading to a crucial step forward in understanding nanowires.

Underwater seismometer can hear how fast a glacier moves

A team of scientists from Hokkaido University used an ocean-bottom seismometer to detect continuous seismic radiation from a glacier sliding in Greenland. The study revealed that glacial basal motion can be monitored using underwater sensors, offering new opportunities for studying ice flow and calving processes.

SourceHokkaido University·JournalNature Communications·DateJul 1, 2021

Forget cash! Credit is key to the survival of busking

A new RMIT University study found that buskers who use digital platforms like apps, QR codes, PayPal, and Bitcoin receive more donations than those using loose coins. The study analyzed over 3,500 active buskers from 121 countries and found that North America and Europe had the most active buskers.

SourceRMIT University·JournalJournal of Cultural Economics·DateJul 1, 2021

Don't worry, the kids are cool if you cash in on their inheritance

A study by the University of South Australia suggests that public resistance to inheritance and estate taxes has declined in Australia. Researchers found that two-thirds of young adults and senior Australians are in favor of taxing estates worth more than $3m, which could help address social inequalities and increase government revenue.

SourceUniversity of South Australia·JournalAustralian Journal of Political Science·DateJul 1, 2021

Chasing the cells that predict death from severe COVID-19

Researchers discovered fundamental differences in T-cell responses between patients who recover from and die from severe COVID-19. They found that dying patients harbor more lung-homing T cells, which contribute to extensive lung deterioration, while survivors have a growing number of Th1 T cells, important fighters of viral infection.

SourceGladstone Institutes·JournalCell Reports·DateJul 1, 2021

In a supramolecular realm: Advances in intracellular spaces with de novo designed peptide

Researchers develop a de novo peptide Y15 that readily forms secondary structures to enable bottom-up synthesis of functional protein assemblies in live cells. The peptide enables the formation of fibrous structures and clusters in test tubes and live cells, facilitating protein assembly and reconstitution of natural complexes.

SourceTokyo Institute of Technology·JournalNature Communications·DateJul 1, 2021

Closing the gap on the missing lithium

Researchers have reduced the discrepancy between theoretical and observed amounts of lithium by around 10% thanks to a new experiment. The study used particle beams, detectors, and an observational method called the Trojan horse to scrutinize one of the Big Bang nucleosynthesis reactions.

Last ice-covered parts of summertime Arctic Ocean vulnerable to climate change

Researchers at the University of Washington found that summer sea ice in the Last Ice Area, a region north of Greenland and Canadian Arctic Archipelago, is declining due to global warming. The study suggests that this area may not be as resilient as previously thought, raising concerns for polar bears and walruses that rely on the ice.

SourceUniversity of Washington·JournalCommunications Earth & Environment·DateJul 1, 2021

Near-death experiences, a survival strategy ?

A recent study suggests that near-death experiences (NDEs) in humans may be linked to evolutionary mechanisms, specifically thanatosis - the phenomenon of death-feigning or tonic immobility. This defense mechanism is thought to have arisen as a survival strategy in animals and has been preserved across various species, including humans.

SourceUniversity of Liège·JournalBrain Communications·DateJul 1, 2021

Rethinking plastics

UD scientists and collaborators issue an urgent call to action on plastics pollution, highlighting the need for a circular lifecycle for plastics. The team proposes new approaches to chemistry, engineering, industrial processes, policy, and global collaboration to address the crisis.

SourceUniversity of Delaware·JournalScience·DateJul 1, 2021

Massive exome-wide association study in humans identifies rare variants that protect against obesity

A massive exome-wide association study identifies rare gene coding variants strongly associated with BMI, including GPR75, which confers protection from obesity in mouse models. This finding provides potential therapeutic targets for treating obesity and demonstrates the power of massive-scale exome sequencing.

Recent technology cost forecasts underestimate the pace of technological change

A systematic analysis of probabilistic cost forecasts from expert-based and model-based methods reveals that current forecasts underestimates the pace of technological change. Model-based approaches outperformed expert elicitations in capturing observed costs, but both underestimated technological progress in most energy technologies.

SourceCMCC Foundation - Euro-Mediterranean Center on Climate Change·JournalProceedings of the National Academy of Sciences·DateJul 1, 2021

A crystal made of electrons

Researchers at ETH Zurich have produced a crystal consisting exclusively of electrons, overcoming previous obstacles due to the low mass and high motional energy of electrons. The team used light to excite excitons in the semiconductor layer, allowing them to visualize the periodic arrangement of electrons.

SourceETH Zurich·JournalNature·DateJul 1, 2021