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Atom-by-atom: Imaging structural transformations in 2D materials

Atom-by-atom: Imaging structural transformations in 2D materials
2024-04-18
Silicon-based electronics are approaching their physical limitations and new materials are needed to keep up with current technological demands. Two-dimensional (2D) materials have a rich array of properties, including superconductivity and magnetism, and are promising candidates for use in electronic systems, such as transistors. However, precisely controlling the properties of these materials is extraordinarily difficult. In an effort to understand how and why 2D interfaces take on the structures they do, researchers at the University of Illinois Urbana-Champaign have developed a method ...

How 3D printers can give robots a soft touch

How 3D printers can give robots a soft touch
2024-04-18
Soft skin coverings and touch sensors have emerged as a promising feature for robots that are both safer and more intuitive for human interaction, but they are expensive and difficult to make. A recent study demonstrates that soft skin pads doubling as sensors made from thermoplastic urethane can be efficiently manufactured using 3D printers. “Robotic hardware can involve large forces and torques, so it needs to be made quite safe if it’s going to either directly interact with humans or be used in human environments,” said project lead Joohyung Kim, a professor of electrical & computer engineering at the University of Illinois Urbana-Champaign. ...

Rice alumna wins prestigious merit-based fellowship for new Americans

2024-04-17
HOUSTON – (April 17, 2024) – Rice University alumna Minjung Kim is one of 30 recipients of the Paul & Daisy Soros Fellowships for New Americans, a merit-based graduate school program for immigrants and children of immigrants. The highly selective award recognizes fellows “for accomplishments that show creativity, originality and initiative [and for] the potential to make meaningful contributions to the United States” in their field of study. Each awardee receives up to $90,000 in funding to support their graduate studies at institutions across the U.S. “This fellowship is a unique experience from the very start — not only did it require me to think ...

International group runs simulations capable of describing South America's climate with unprecedented accuracy

International group runs simulations capable of describing South Americas climate with unprecedented accuracy
2024-04-17
A consortium made up of researchers from more than ten countries, including Brazil, the United States and some European nations, is running simulations of the past and future climate in South America with unprecedented resolution. The aim is to create a computer visualization model that more accurately represents the hydroclimatic processes that occur in the region to help decision-makers implement more effective measures to adapt to the impacts of climate change. The work was presented at a panel discussion on climate on April 10, during FAPESP Week Illinois, in Chicago (United States). “We’re ...

Researchers find that accelerated aging biology in the placenta contributes to a rare form of pregnancy-related heart failure

2024-04-17
Key Takeaways Peripartum cardiomyopathy is a rare form of heart failure that occurs in women during late pregnancy or early postpartum, and one in which the cause remains largely unknown In a new study, Mass General researchers and colleagues show that elevated levels of proteins related to cellular senescence, or aging, in the blood and the placenta are linked to this form of heart failure Targeting aging-related placental proteins improved heart function in a lab model of peripartum cardiomyopathy, suggesting a potential new approach for therapeutic development BOSTON—A form of heart failure that occurs during late pregnancy ...

Vibrations of granular materials: an everyday scientific mystery

2024-04-17
Coffee beans in a jar and piles of rice or sand are examples of granular matter: materials composed of large numbers of macroscopic—rather than atomic scale—particles. Although granular matter is extremely familiar in everyday life, it represents an unexpected frontier in fundamental physics: Very little is understood about it. In a new study published recently in the European Physical Journal E, Onuttom Narayan and Harsh Mathur, theoretical physicists at the University of California at Santa Cruz and Case Western Reserve University, respectively, shed some light on the propagation of sound through granular materials ...

UW–Madison biochemist wins prestigious forestry prize for discoveries that support sustainable energy and product innovations

UW–Madison biochemist wins prestigious forestry prize for discoveries that support sustainable energy and product innovations
2024-04-17
The world’s top prize in forestry research has been awarded to University of Wisconsin–Madison biochemistry professor John Ralph for work that has led to new uses for one of the world’s most abundant natural resources. The Marcus Wallenberg Foundation on Wednesday awarded the 2024 Marcus Wallenberg Prize to Ralph and collaborator Wout Boerjan, a professor at Ghent University in Belgium, for their groundbreaking research on the molecular structure of lignin, one of the main components of plant cell walls. Dubbed ...

New SPECT/CT technique shows impressive biomarker identification, offers increased access for prostate cancer patients

New SPECT/CT technique shows impressive biomarker identification, offers increased access for prostate cancer patients
2024-04-17
Reston, VA—A novel SPECT/CT acquisition method can accurately detect radiopharmaceutical biodistribution in a convenient manner for prostate cancer patients, opening the door for more personalized treatment. Utilizing lead-212 (212Pb), the new imaging technique has the potential to change practice and increase access for patients around the world. The first-in-human images from this method were published in the April issue of The Journal of Nuclear Medicine. There is significant interest in the development of 212Pb-PSMA–based ...

Study identifies new metric for diagnosing autism

Study identifies new metric for diagnosing autism
2024-04-17
Autism spectrum disorder has yet to be linked to a single cause, due to the wide range of its symptoms and severity. However, a study by University of Virginia researchers suggests a promising new approach to finding answers, one that could lead to advances in the study of other neurological diseases and disorders. Current approaches to autism research involve observing and understanding the disorder through the study of its behavioral consequences, using techniques like functional magnetic resonance imaging ...

Researchers create new AI pipeline for identifying molecular interactions

2024-04-17
Understanding how proteins interact with each other is crucial for developing new treatments and understanding diseases. Thanks to computational advances, a team of researchers led by Assistant Professor of Chemistry Alberto Perez has developed a groundbreaking algorithm to identify these molecular interactions. Perez’s research team included two graduate students from UF, Arup Mondal and Bhumika Singh, and a handful of researchers from Rutgers University and Rensselaer Polytechnic Institute. The team published their findings in Angewandte Chemie, a leading ...

Clearing the air: Wind farms more land efficient than previously thought

2024-04-17
Wind power is a source of energy that is both affordable and renewable. However, decision-makers have been reluctant to invest in wind energy due to a perception that wind farms require a lot of land compared to electric power plants driven by fossil fuels. Research led by McGill University and based on the assessment of the land-use of close to 320 wind farms in the U.S. (the largest study of its kind) paints a very different picture. Misplaced preconceptions about the land use of gas-fuelled electricity The study, which was published recently in Environmental Science and Technology, shows that, when ...

Fracking the future: how Congolese oil extraction has shaped its history and its fate

2024-04-17
In 1969, the recently independent Republic of Congo discovered an enormous oil field off its coast. The find represented both a rare opportunity for the burgeoning nation, and a potential threat – the revenue generated by oil extraction could either pave the way for a stable socialist society, or doom the country to exploitation much like that it had endured under French colonialism. A new paper in Critical Historical Studies, “Enclosed Futures: Oil Extraction in the Republic of Congo,” demonstrates ...

Paper: To understand cognition—and its dysfunction—neuroscientists must learn its rhythms

Paper: To understand cognition—and its dysfunction—neuroscientists must learn its rhythms
2024-04-17
It could be very informative to observe the pixels on your phone under a microscope, but not if your goal is to understand what a whole video on the screen shows. Cognition is much the same kind of emergent property in the brain. It can only be understood by observing how millions of cells act in coordination, argues a trio of MIT neuroscientists. In a new article, they lay out a framework for understanding how thought arises from the coordination of neural activity driven by oscillating electric fields—also known ...

First evidence of human occupation in lava tube cave in Saudi Arabia

First evidence of human occupation in lava tube cave in Saudi Arabia
2024-04-17
Recent strides in interdisciplinary archaeological research in Arabia have unveiled new insights into the evolution and historical development of regional human populations, as well as the dynamic patterns of cultural change, migration, and adaptation to environmental fluctuations.  Despite the challenges posed by limited preservation of archaeological assemblages and organic remains in arid environments, these discoveries are reshaping our understanding of the region's rich cultural heritage.  One such breakthrough led by Griffith University’s Australian ...

New data identifies trends in accidental opioid overdoses in children

New data identifies trends in accidental opioid overdoses in children
2024-04-17
The US saw a 22% decline in rates of prescription-opioid overdose related emergency department (ED) visits in children 17 and younger between 2008 and 2019, but an uptick in the early part of the COVID-19 pandemic, according to a new study published this week in the open-access journal PLOS ONE by Henry Xiang of Nationwide Children’s Hospital, US, and colleagues. The authors also note that rates of pediatric opioid overdoses remain high in many populations. Opioid overdose has been declared a public health emergency in the United States but much of the focus has been on adults. In the new study, researchers analyzed overdoses ...

An international sample of adolescents shows almost 17% experience weight-related bullying online, especially for social media users—with almost 70 percent of Twitter users reporting being bullied

An international sample of adolescents shows almost 17% experience weight-related bullying online, especially for social media users—with almost 70 percent of Twitter users reporting being bullied
2024-04-17
From a survey of about 12,000 adolescents from Australia, Canada, Chile, Mexico, the US, and the UK, about 17 percent of respondents reported experiencing weight-related bullying online, especially users of Twitter and Twitch, according to a study published April 17, 2023 in the open-access journal PLOS ONE by Kyle Ganson from University of Toronto, Canada, and colleagues. Screen time and social media use are common among adolescents—and people in general—for entertainment and social connection, though many cons exist, including cyberbullying. Here, Ganson and colleagues investigated weight-related bullying in adolescents across different ...

Humans occupied a lava tube in Saudi Arabia for thousands of years

Humans occupied a lava tube in Saudi Arabia for thousands of years
2024-04-17
A large lava tube in Saudia Arabia provided valuable shelter for humans herding livestock over at least the past 7,000 years, according to a study published April 17, 2024 in the open-access journal PLOS ONE by Mathew Stewart of Griffith University, Brisbane and colleagues. Research in northern Arabia over the last decade has highlighted a diverse Holocene archaeological record. However, the timing of human occupations and their connections with the nearby Levant remain poorly understood, primarily due to poor preservation of organic remains in the region’s arid conditions. To circumvent this problem, Stewart ...

Watching a video could change your attitude to rattlesnakes - though results varied by age, gender, religion and rattlesnake experience

Watching a video could change your attitude to rattlesnakes - though results varied by age, gender, religion and rattlesnake experience
2024-04-17
Watching a video could change your attitude to rattlesnakes - though results varied by age, gender, religion and rattlesnake experience ### Article URL:  https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0298737 Article Title: Effects of relational and instrumental messaging on human perception of rattlesnakes Author Countries: USA Funding: The author(s) received no specific funding for this work. END ...

Artificial Intelligence beats doctors in accurately assessing eye problems

Artificial Intelligence beats doctors in accurately assessing eye problems
2024-04-17
The clinical knowledge and reasoning skills of GPT-4 are approaching the level of specialist eye doctors, a study led by the University of Cambridge has found. GPT-4 - a ‘large language model’ - was tested against doctors at different stages in their careers, including unspecialised junior doctors, and trainee and expert eye doctors. Each was presented with a series of 87 patient scenarios involving a specific eye problem, and asked to give a diagnosis or advise on treatment by selecting from four options. GPT-4 scored significantly better in the ...

Ice age climate analysis reduces worst-case warming expected from rising CO2

Ice age climate analysis reduces worst-case warming expected from rising CO2
2024-04-17
As carbon dioxide accumulates in the atmosphere, the Earth will get hotter. But exactly how much warming will result from a certain increase in CO2 is under study. The relationship between CO2 and warming, known as climate sensitivity, determines what future we should expect as CO2 levels continue to climb. New research led by the University of Washington analyzes the most recent ice age, when a large swath of North America was covered in ice, to better understand the relationship between CO2 and global temperature. It finds that while most future warming ...

East coast mussel shells are becoming more porous in warming waters

East coast mussel shells are becoming more porous in warming waters
2024-04-17
Researchers at the American Museum of Natural History have found that over the last 120 years, the porosity—or small-scale holes—in mussel shells along the East Coast of the United States has increased, potentially due to warming waters. The study, which analyzed modern mussel shells in comparison to specimens in the Museum’s historic collection, was published today in the journal PLOS ONE. “Mussels are important on so many levels: they provide habitats on reefs, they filter water, they protect coasts during storms, and they are important commercially as well—I love mussels and I know many other people do, too,” said Leanne Melbourne, ...

Paleontologists unearth what may be the largest known marine reptile

Paleontologists unearth what may be the largest known marine reptile
2024-04-17
The fossilised remains of a second gigantic jawbone measuring more than two metres long has been found on a beach in Somerset, UK. Experts have identified the bones as belonging to the jaws of a new species of enormous ichthyosaur, a type of prehistoric marine reptile. Estimates suggest the oceanic titan would have been more than 25 metres long. Father and daughter, Justin and Ruby Reynolds from Braunton, Devon, found the first pieces of the second jawbone to be found in May 2020, while searching for fossils on the ...

Video-assisted hand therapy is effective after thumb arthritis surgery

2024-04-17
Waltham — March 15, 2024 — For patients undergoing carpometacarpal (CMC) joint surgery for treatment of thumb osteoarthritis, the use of online video instruction for postoperative hand therapy is associated with outcomes similar to in-person therapy visits – while substantially reducing travel time and distance, reports a clinical trial in The Journal of Bone & Joint Surgery. The journal is published in the Lippincott portfolio in partnership with Wolters Kluwer.  Video-administered hand therapy provides an "efficient and effective" alternative to in-person therapy after CMC arthroplasty, ...

New butterfly species created 200,000 years ago by two species interbreeding

New butterfly species created 200,000 years ago by two species interbreeding
2024-04-17
Researchers have shown that an Amazonian butterfly is a hybrid species, formed by two other species breeding together almost 200,000 years ago.  The discovery, by an international team led by scientists at the University of York and Harvard University, demonstrates how the formation of new species can be more complex than previously imagined. Species are often thought of as the tips, or leaves in a ‘tree of life’. In this model, new species are produced by the tips splitting over thousands to millions of years.  Scientists now understand, however, that the branches in the tree of life are ...

New class of antimicrobials discovered in soil bacteria

New class of antimicrobials discovered in soil bacteria
2024-04-17
Researchers have discovered toxic protein particles, shaped like umbrellas, that soil bacteria known as Streptomyces secrete to squelch competitors, especially others of their own species. The discovery of the umbrella toxin particles and related information about their structures, composition and mode of action were published April 17 in Nature. The umbrella toxin proteins are the latest example of these bacteria’s varied, combative strikes on their microscopic rivals. The crowded, diverse bacteria communities ...
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