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Targeting wealth managers would cripple Russia's oligarchs

A new study by Dartmouth College researchers finds that sanctions on wealth managers would be more effective than asset seizure in crippling Russia's oligarchs. The research uses network science to map the connections between wealthy individuals and their financial experts, revealing a vulnerable network that can be disrupted with targ...

SourceDartmouth College·JournalPNAS Nexus·TypeData/statistical analysis·DateFeb 28, 2023

Study finds sinking tundra surface unlikely to trigger runaway permafrost thaw

Researchers used a high-performance computer simulation to study the impact of soil subsidence on permafrost thawing in the Arctic tundra. They found that uneven land subsidence leads to a drier landscape, which limits the process's acceleration through the end of the century.

SourceDOE/Oak Ridge National Laboratory·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateFeb 21, 2023

Can clay capture carbon dioxide?

Researchers are exploring how a kind of clay can soak up carbon dioxide and store it, potentially reducing the impact of climate change. The study found that carbon dioxide is more stable in wet clay nanopores than in plain water.

SourceDOE/Sandia National Laboratories·JournalThe Journal of Physical Chemistry Letters·TypeComputational simulation/modeling·DateFeb 9, 2023

Algorithms for hiring: Bias in, bias out

Researchers tested three common techniques to make algorithms fairer and found that one approach didn't reduce social norm bias at all. They proposed a new technique: a formula to directly measure social norm bias in an algorithm so it can be corrected. This bias can persist even after overt discrimination is removed.

SourceUniversity of Texas at Austin·JournalData Mining and Knowledge Discovery·TypeData/statistical analysis·DateFeb 8, 2023

AI discovers new nanostructures

Researchers at Brookhaven National Laboratory have successfully discovered new materials using artificial intelligence and self-assembly. The AI-driven technique led to the discovery of three new nanostructures, expanding the scope of self-assembly's applications in microelectronics and catalysis.

SourceDOE/Brookhaven National Laboratory·JournalScience Advances·DateJan 13, 2023

Study shows how machine learning could predict rare disastrous events, like earthquakes or pandemics

Researchers from Brown and MIT developed a new framework that uses machine learning and sequential sampling to predict rare disasters like earthquakes and pandemics with less data. The framework, called DeepOnet, has been shown to outperform traditional modeling efforts in predicting scenarios, probabilities and timelines of rare events.

SourceBrown University·JournalNature Computational Science·TypeComputational simulation/modeling·DateDec 19, 2022

NTU Singapore doctors find mental health chatbots are effective in helping treat symptoms in people with depression

A study by NTU Singapore found that mental health chatbots engage users in empathetic conversations and offer support and guidance through psychotherapeutic exercises. The chatbots displayed a 'coach-like' personality, but were not able to deliver personalised advice.

SourceNanyang Technological University·JournalJournal of Affective Disorders·TypeMeta-analysis·DateDec 19, 2022

Glassy discovery offers computational windfall to researchers across disciplines

A team of researchers from the University of Pennsylvania has developed a new algorithm, metadynamics, that can navigate high-dimensional energy landscapes to find low-energy configurations. This breakthrough has the potential to revolutionize fields such as protein folding and machine learning.

SourceUniversity of Pennsylvania School of Engineering and Applied Science·JournalProceedings of the National Academy of Sciences·DateDec 5, 2022

New quantum computing feat is a modern twist on a 150-year-old thought experiment

A team of quantum engineers at UNSW Sydney has developed a method to reset a quantum computer using a fast digital voltmeter to watch the temperature of an electron, reducing preparation errors from 20% to 1%. This innovation represents a modern twist on Maxwell's demon, a thought experiment that dates back to 1867.

SourceUniversity of New South Wales·JournalPhysical Review X·TypeExperimental study·DateNov 29, 2022

New wind field models accurately describe wind gusts

Researchers at the University of Oldenburg have developed a new statistical model that accurately describes wind turbulence and generates fully three-dimensional wind fields using limited measurement points. This breakthrough enables precise wind turbine load estimation and improves wind farm planning, with applications in various fiel...

SourceUniversity of Oldenburg·JournalPRX Energy·TypeData/statistical analysis·DateNov 15, 2022

Researchers unravelling the mystery of extreme waves

Research has found that extreme ocean waves can arise from modulation instability in multi-directional wave systems, challenging previous assumptions. The study demonstrates that crossing sea waves can trigger the formation of extreme waves, posing a growing risk to marine infrastructure and coastal communities due to climate change.

SourceUniversity of Sydney·JournalPhysical Review·TypeExperimental study·DateNov 11, 2022

A novel multi-modal image retrieval system by researchers from Gwangju Institute of Science and Technology

A novel multi-modal image retrieval system, DenseBert4Ret, has been developed by researchers from Gwangju Institute of Science and Technology (GIST) using deep learning algorithms. The system outperforms state-of-the-art models in retrieving images based on both image and text features.

SourceGIST (Gwangju Institute of Science and Technology)·JournalInformation Sciences·TypeComputational simulation/modeling·DateNov 8, 2022

Human brain cells in a dish learn to play Pong

Researchers created living brain cells in a dish that can perform goal-directed tasks and adapt to changes, opening doors for new understanding of brain function. The study also raises possibilities for alternative animal testing and biomimetic research.

SourceCortical Labs·JournalNeuron·TypeExperimental study·DateOct 12, 2022

Revealing the mysteries of the universe under the skin of an atomic nucleus

A breakthrough computer model from Chalmers University of Technology reveals the properties of an atomic nucleus, providing insights into the strong force that governs neutron star behavior. The model predicts a surprisingly thin neutron skin, which could lead to increased understanding of heavy element creation in neutron stars.

SourceChalmers University of Technology·JournalNature Physics·TypeComputational simulation/modeling·DateOct 12, 2022

NTU Singapore scientists develop inexpensive device that can harvest energy from a light breeze and store it as electricity

The NTU-developed wind harvester generates a voltage of three volts at wind speeds as low as two meters per second, powering commercial sensor devices. The device can also store excess charge for extended periods in the absence of wind, serving as an alternative to smaller lithium-ion batteries.

SourceNanyang Technological University·JournalMechanical Systems and Signal Processing·TypeMeta-analysis·DateOct 5, 2022

For the longest time: Quantum computing engineers set new standard in silicon chip performance

A team of researchers at UNSW Sydney has broken new ground by proving that 'spin qubits' can hold information for up to two milliseconds, a significant improvement over previous benchmarks. By extending the coherence time, they enable more efficient quantum operations and better maintain information during calculations.

SourceUniversity of New South Wales·JournalApplied Physics Reviews·TypeExperimental study·DateSep 29, 2022

Story tips: Inland water carbon emissions on the rise, sealed with silica, cancer-fighting chemistry, improving materials for energy storage, using math to predict SARS-CoV-2 protein mutations

Researchers found that inland water carbon emissions are on the rise, with estimates suggesting 4.4 billion metric tons of carbon are released annually, primarily as carbon dioxide or methane. A new thermal insulation composite made from silica particles also shows promise for improving energy efficiency and reducing moisture damage.

SourceDOE/Oak Ridge National Laboratory·JournalGlobal Change Biology·DateSep 7, 2022

Optimizing wind flow simulations

Researchers at the University of Oldenburg and Fraunhofer IWES collaborate on a new project to develop more accurate wind flow simulations using artificial intelligence. The goal is to reduce computing times and enhance precision, ultimately accelerating innovation in wind turbine design.

Future-proofing the Great Lakes region through climate research: Improved regional climate models will help the Great Lakes Region become more informed, ready and resilient

A new study uses high-resolution regional model experiments to explore how lake surface temperatures may affect the climate of the Great Lakes region. Small differences in lake surface temperatures can have a significant impact on summer climate and fuel extreme weather events.

SourceDOE/Argonne National Laboratory·JournalJournal of Geophysical Research Atmospheres·DateAug 3, 2022

And when will YOUR medical care collapse?

A research team from the Complexity Science Hub Vienna has developed a stress test to identify weaknesses and strengths in healthcare systems. They used data from Austria to show how many resident physicians can drop out before patients don't find a new doctor within reasonable distance, highlighting regional differences in resilience.

SourceComplexity Science Hub·JournalNature Communications·TypeComputational simulation/modeling·DateJul 28, 2022

Methods from weather forecasting can be adapted to assess risk of COVID-19 exposure

Researchers developed a smartphone app that harnesses weather forecasting data to provide individuals with a granular understanding of their COVID-19 risk. The app would blend various types of data, including surveillance testing and wearable sensor data, to forecast the spread of disease across a network of human contacts.

SourceCalifornia Institute of Technology·JournalPLOS Computational Biology·TypeComputational simulation/modeling·DateJun 23, 2022