USF study: Smartphones may benefit kids, but public social media use poses risks
2025-03-25
A full slide deck of findings is available at the Box link here
TAMPA, Fla. (March 18, 2025) – A groundbreaking new study of young people’s digital media use has revealed surprising results, including evidence that smartphone ownership may actually benefit children.
The study also suggests a link between social media posting and various negative outcomes, as well as data connecting cyberbullying to depression, anger and signs of dependence on digital media.
The Life in Media Survey, led by a team of researchers at the University of South Florida in collaboration with The Harris Poll, conducted a survey of ...
Study shows how retinal cells know when to keep their distance
2025-03-25
In vertebrate retinas, specialized photoreceptors responsible for color vision (cone cells) arrange themselves in patterns known as the “cone mosaic”. Researchers at the Okinawa Institute of Science and Technology (OIST) have discovered that a protein called Dscamb acts as a "self-avoidance enforcer" for color-detecting cells in the retinas of zebrafish, ensuring they maintain perfect spacing for optimal vision. Their findings have been published in Nature Communications.
Solving a mystery in vision science
Vertebrate retinas contain photoreceptor cells that convert light into neural signals. These photoreceptors come in two main types: rods, which function ...
New type of quantum computer studies the dance of elementary particles
2025-03-25
The standard model of particle physics is our best theory of the elementary particles and forces that make up our world: particles and antiparticles, such as electrons and positrons, are described as quantum fields. They interact through other force-fields, such as the electromagnetic force that binds charged particles.
To understand the behaviour of these quantum fields and with that our universe, researchers perform complex computer simulations of quantum field theories. Unfortunately, many of these calculations are too complicated for even our best supercomputers and pose great challenges for quantum computers as well, leaving many pressing ...
AI can help doctors give intravenous nutrition to preemies, Stanford Medicine study finds
2025-03-25
Artificial intelligence can improve intravenous nutrition for premature babies, a Stanford Medicine study has shown. The study, which will publish March 25 in Nature Medicine, is among the first to demonstrate how an AI algorithm can enable doctors to make better clinical decisions for sick newborns.
The algorithm uses information in preemies’ electronic medical records to predict which nutrients they need and in what quantities. The AI tool was trained on data from almost 80,000 past prescriptions for intravenous nutrition, which was linked to information about how the tiny patients fared.
Using AI to help prescribe IV nutrition could reduce medical errors, ...
New study uncovers key pathways in hydronium and hydroxide ion neutralization
2025-03-25
A new study provides fresh insight into traditional acid-base chemistry by revealing that the mutual neutralization of isolated hydronium (H₃O⁺) and hydroxide (OH⁻) ions is driven by electron transfer rather than the proton transfer that is expected in bulk liquid water. Using deuterated water ions and advanced 3D coincidence imaging of the neutral products, researchers found two electron-transfer mechanisms that produce hydroxyl radicals (OH), which are crucial in atmospheric chemistry. These findings reshape our understanding ...
ASM and IUMS unveil global framework to implement microbial climate solutions
2025-03-25
Washington, D.C.—As climate change continues to accelerate at an alarming pace, innovative and scalable solutions are more critical than ever. This week, the American Society for Microbiology (ASM) and the International Union for Microbiological Societies (IUMS) released Microbial Solutions for Climate Change, a report developed by their scientific advisory group (SAG) of global experts. The report outlines innovative microbial technologies that can significantly contribute to climate change mitigation and underscores the urgent need for coordinated global action across nations ...
‘Low-sugar’ vaccine can provide broad immunity against coronavirus variants
2025-03-25
SAN DIEGO, March 25, 2025 — Sugar coatings aren’t only for candies; they also help viruses, like the ones that cause COVID-19, hide from their hosts’ immune system. Now, researchers have developed a universal vaccine that targets coronaviruses and the sugars that they use as cover. As demonstrated in animal studies, the vaccine removed sugar molecules from an area of a coronavirus spike protein that rarely mutates and created effective and plentiful antibodies to inactivate the virus.
Chi-Huey Wong, a chemistry professor ...
Chewing gum can shed microplastics into saliva, pilot study finds
2025-03-25
SAN DIEGO, March 25, 2025 — Plastic is everywhere. And many products we use in everyday life, such as cutting boards, clothes and cleaning sponges, can expose people to tiny, micrometer-wide plastic particles called microplastics. Now, chewing gum could be added to the list. In a pilot study, researchers found that chewing gum can release hundreds to thousands of microplastics per piece into saliva and potentially be ingested.
The researchers will present their results at the spring meeting of the American Chemical ...
Fluorescent caves could explain how life persists in extraterrestrial environments
2025-03-25
SAN DIEGO, March 25, 2025 — Deep below Earth’s surface, rock and mineral formations lay hidden with a secret brilliance. Under a black light, the chemicals fossilized within shine in brilliant hues of pink, blue and green. Scientists are using these fluorescent features to understand how the caves formed and how life is supported in extreme environments, which may reveal how life could persist in faraway places, like Jupiter’s icy moon Europa.
The researchers will present their results at the spring meeting of the American Chemical Society (ACS). ACS Spring 2025 is being held March 23-27; it features about 12,000 presentations on ...
Hydrophilic coating makes for unflappable golf balls
2025-03-25
SAN DIEGO, March 25, 2025 — The upcoming U.S. Open has professional golfers and spectators looking forward to getting on the green. But the grass’ condition, regardless of a player’s skill, can drastically skew the chances of a winning putt. Now, scientists can slow the roll of a golf ball on a lightning-fast, dry course and speed it up on a sluggish, wet course thanks to a coating that soaks up water molecules without interfering with the ball’s aerodynamics.
Thomas J. Kennedy III, owner of Chemical Innovative Solutions Inc., will present his results at the spring meeting of the American Chemical ...
New research reveals venomous findings in non-animals
2025-03-25
A new published study reveals plants, fungi, bacteria, protists, and even some viruses deploy venom-like mechanisms, similar to that of venomous snakes, scorpions and spiders, according to researchers at Loma Linda University School of Medicine.
The definition of venom is a biological toxin introduced into the internal milieu of another organism through a delivery mechanism such as a sting or bite that inflicts a wound. According to lead author William K. Hayes, PhD, professor of biology for the Department of Earth and Biological Sciences at the School of Medicine, the findings show that reliance on venom for solving problems like predation, ...
Ecosystem disrupted following the disappearance of Great white sharks, new study finds
2025-03-25
Ecosystem disrupted following the disappearance of Great white sharks, new study finds
Known for their powerful ability to launch out of the water in pursuit of prey, the loss of Great white sharks from False Bay in South Africa has scientists and conservationists concerned about the rippling effects on the ecosystem.
Miami, Florida – A new study published in the journal Frontiers in Marine Science, has uncovered evidence of far-reaching ecosystem consequences following the disappearance of Great white sharks (Carcharodon carcharias) from False Bay, South Africa. The research, conducted by scientists at the University of Miami Rosenstiel ...
New geometric design of material provides safer bicycle helmet
2025-03-25
By using new geometric shapes in the shock-absorbing material, researchers at the Universities of Gothenburg and Isfahan have developed a bicycle helmet that provides better protection against head injuries. The material absorbs shock by contracting bilaterally.
Bicycle helmets are important for protecting cyclists from head injuries, but traditional designs have limitations in terms of impact absorption and fit. Researchers at the University of Gothenburg and the University of Isfahan in Iran designed a bicycle helmet whose shock-absorbing ...
Why does one person develop schizophrenia while another does not? A leading psychiatric geneticist investigates the answer
2025-03-25
HOUSTON, Texas, USA, 25 March 2025 – Schizophrenia affects millions worldwide, yet its causes remain one of the greatest medical mysteries. In an exclusive Genomic Press Interview, Dr. Consuelo Walss-Bass, a pioneering researcher in psychiatric genetics, shares how both genetic predisposition and environmental factors contribute to severe mental health disorders. As the John S. Dunn Foundation Distinguished Chair in Psychiatry at UTHealth Houston, Dr. Walss-Bass has dedicated her career to understanding these mechanisms, transforming scientific discoveries into real-world applications ...
First joint oscillation analysis of super-kamiokande atmospheric and T2K accelerator neutrino data
2025-03-25
The Super-Kamiokande and T2K Collaborations present a joint measurement of neutrino oscillation parameters from their atmospheric and beam neutrino data. It uses a common interaction model for events overlapping in neutrino energy and correlated detector systematic uncertainties between the two datasets, which are found to be compatible. Using 3244.4 days of atmospheric data and a beam exposure of 19.7(16.3) x 1020 protons on target in (anti)neutrino mode, the analysis finds a 1.9???? exclusion ...
E-scooter crashes mainly caused by reckless driving
2025-03-25
Crashes on electric scooters are mostly due to the behaviour of the riders, with one-handed steering and riding in a group being some of the largest risk factors. The researchers are also concerned about riders who deliberately crash or cause dangerous situations when riding, a phenomenon that seems to be specific to electric scooters. This is shown by a study from Chalmers University of Technology in Sweden, which for the first time examines the causes behind crashes with electric scooters from naturalistic data within an urban environment.
The arrival of electric scooters in cities has meant an opportunity to quickly and smoothly make shorter trips. But not ...
Uncovering the brain’s flexible mechanisms for representing diverse numbers
2025-03-25
Abstract
The National Institute of Information and Communications Technology (NICT, President: TOKUDA Hideyuki, Ph.D.) has revealed, through fMRI-based brain activity analysis, that multiple regions in the human cerebral cortex flexibly represent numerical quantity. This finding comes from research by HAYASHI Masamichi (Researcher (Tenure-Track)) at Center for Information and Neural Networks (CiNet), part of NICT’s Advanced ICT Research Institute, in collaboration with the University of Tokyo’s graduate student KIDO Teruaki (NICT ...
Biological pathway in the brain could help explain why teenage girls are more depressed than boys
2025-03-25
Depression is a mental health condition that affects 280 million people worldwide. It is twice as common in women than men and this pattern starts to develop during adolescence. Researchers have studied the biological processes that drive depression in adults and shown a potential role for the kynurenine pathway, but this is the first time it has been investigated in adolescents in relation to biological sex.
The study was published in Biological Psychiatry and funded by MQ Mental Health Research and supported by the National Institute for Health and Care Research (NIHR) Maudsley Biomedical Research Centre (BRC).
The ‘kynurenine ...
Artisanal fishers are almost as accurate as satellites in producing environmental data
2025-03-25
Artisanal fishers can be almost as accurate as satellite data when it comes to their awareness of features that can be found in the marine environment, a new study has shown.
Published in the journal Ocean and Coastal Management, the research set out to establish the value of local ecological knowledge (LEK) and its ability to generate high quality habitat maps around five Greek islands in the eastern Aegean Sea.
Ten fishermen, based on their individual experience and knowledge, were asked to pinpoint areas where they believed seagrass beds could be found along the coastlines of their respective islands.
The maps they produced were then compared ...
Teaching kids about bugs benefits the environment
2025-03-25
Pro-environmental behaviour increases among school students who participate in insect-related citizen science projects, according to new research from the University of Adelaide.
Students who participated in citizen science project Insect Investigators, which engages students in the discovery of new insects, not only expressed an intention to change their personal behaviour but also to encourage others to protect nature.
“As a result of their involvement in this program, students expressed intentions to further engage in insect–science–nature activities,” says the University of Adelaide’s Dr Erinn Fagan-Jeffries, who contributed ...
Tandem design on electrocatalysts and reactors for electrochemical CO2 reduction
2025-03-25
Electrochemical CO2 reduction (ECR) driven by green electricity represents a promising strategy for CO2 mitigation and utilization by producing fuels and chemicals. Tandem strategy based on multifunctional tandem catalysts or cascade reactors enables deep CO2 reduction to high-value multi-carbon products. Nevertheless, it is challenging to precisely regulate the multi-step reaction pathways toward efficient CO2 conversion. A comprehensive understanding of the tandem reaction mechanisms is crucial for guiding the rational design of advanced catalysts and reactor systems to address these challenges.
This review systematically ...
New study reveals impact of vermicomposted olive wastes on plant defense and pest control.
2025-03-25
A recent study published in Soil Ecology Letters has elucidated the combined effects of soil amendments and pest attacks on plant-induced defence mechanisms and their impact on the behaviour of biological control agents. The research, conducted by the Spanish National Research Council (CSIC) and Fundación MEDINA, focused on the utilisation of vermicomposted olive mill waste as a soil amendment and its consequence on the tri-trophic interactions between olive trees (Olea europaea), ...
An extension of process calculus for asynchronous communications between agents with epistemic states
2025-03-25
It plays a central role in intelligent agent systems to model agents’ epistemic states and their changes. Asynchrony plays a key role in distributed systems, in which the messages transmitted may not be received instantly by the agents. Epistemic interaction behaviors can change agents’ epistemic states, while the latter will affect the former. So far, the literature mainly focuses on formalizing the change of epistemic state after receiving information.
To model epistemic interactions between ...
Researchers achieve de novo biosynthesis of plant lignans using synthetic yeast consortia
2025-03-25
Lignans are low molecular weight polyphenolic compounds with important antitumor and antiviral properties. However, their low amounts in medicinal plants and complex structures make sustainable production through plant extraction and chemical synthesis challenging, limiting their availability to meet market demand.
In a study published in Nature Chemical Biology, a research group led by Prof. ZHOU Yongjin from the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, collaborating with Prof. ZHANG Lei ...
Ferroptosis contributes to immunosuppression
2025-03-25
Iron-dependent ferroptosis, a non-apoptotic cell death mechanism, is gaining attention for its role in immune suppression. Ferroptosis, driven by excessive lipid peroxides and iron-dependent reactive oxygen species (ROS), differs from other cell death forms in its immunogenicity. It involves the regulation of the cystine/glutamate transport system xc−, with glutathione (GSH) and glutathione peroxidase 4 (GPX4) preventing toxic lipid peroxide accumulation. Ferroptosis-related factors are implicated in various diseases, including cancer and cardiovascular diseases.
Macrophages, crucial for immune response, are affected by ferroptosis. ...
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