Je vaus donner a mes lecteurs une idfée de ce que je reçois chaque jour de Newsletters Science X . Mais je n ai pas comme eux la struture et l équipe pour collecter résumer et sélectionner tout ce qui parait en permanence . Mes lecteurs comprendront alors pourquoi je les remercie de m adresser chaque lundi la seur hyper selection que je vous traduit et commente ...
And again :happy new year !!!!!
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Dear olivier hartmanshenn,
Here is your customized Science X Newsletter for December 27, 2024:
Spotlight Stories Headlines
Nanotechnology news
Light-driven method creates molecular fit that would otherwise be impossible
Exploiting an ingenious combination of photochemical (i.e., light-induced) reactions and self-assembly processes, a team led by Prof. Alberto Credi of the University of Bologna has succeeded in inserting a filiform molecule into the cavity of a ring-shaped molecule, according to a high-energy geometry that is not possible at thermodynamic equilibrium. In other words, light makes it possible to create a molecular "fit" that would otherwise be inaccessible.
Researchers develop high-performance heterojunction pn diodes
A research team has developed high-performance diamond/ε-Ga2O3 heterojunction pn diodes based on ultrawide bandgap semiconductors, achieving breakdown voltages exceeding 3 kV. This work was published in Nano Letters.
Physics news
Numerical simulations show how the classical world might emerge from the many-worlds universes of quantum mechanics
Students learning quantum mechanics are taught the Schrodinger equation and how to solve it to obtain a wave function. But a crucial step is skipped because it has puzzled scientists since the earliest days—how does the real, classical world emerge from, often, a large number of solutions for the wave functions?
Scientists use machine learning to develop an opener for a molecular can
In an era of medical care that is increasingly aiming at more targeted medication therapies, more individual therapies and more effective therapies, doctors and scientists want to be able to introduce molecules to the biological system to undertake specific actions.
Advancing unidirectional heat flow: The next era of quantum thermal diodes
Heat management at the nanoscale has long been a cornerstone of advanced technological applications, ranging from high-performance electronics to quantum computing. Addressing this critical challenge, we have been deeply intrigued by the emerging field of thermotronics, which focuses on manipulating heat flux in ways analogous to how electronics control electric energy. Among its most promising advancements are quantum thermal diodes, which enable directional heat control, and quantum thermal transistors, which regulate heat flow with precision.
Spintronics memory innovation: A new perpendicular magnetized film
Long gone are the days where all our data could fit on a two-megabyte floppy disk. In today's information-based society, the increasing volume of information being handled demands that we switch to memory options with the lowest power consumption and highest capacity possible.
AI model deciphers splashing drop patterns with high accuracy
The impact of a drop on a solid surface is an important phenomenon that has various applications. Especially when the drop splashes, it can cause deterioration of printing and paint qualities, erosion, and propagation of airborne virus, among others. Therefore, it is important to observe and understand the characteristics of the splashing drops of different liquids.
Low-frequency photonic simulator breaks barriers
A research team led by Prof. Li Chuanfeng from the University of Science and Technology of China (USTC) has achieved a breakthrough in quantum photonics. They developed an on-chip photonic simulator capable of simulating arbitrary-range coupled frequency lattices with gauge potential. This study was published in Physical Review Letters.
Researchers develop novel photopyroelectric tweezer for versatile manipulation
Optical tweezers and related techniques provide extraordinary opportunities for research and applications in the physical, biological, and medical fields. However, certain requirements such as high-intensity laser beams, sophisticated electrode designs, additional electric sources, and low-conductive media, significantly impede their flexibility and adaptability, thus hindering their practical applications.
A new structure design enables a dual-function system for infrared camouflage and thermal management
Combining metallic glass with the Berreman mode of epsilon-near-zero (ENZ) thin films achieves a dual-function system for infrared camouflage and thermal management within an identical wavelength region of the atmospheric window. In recent research, metallic glasses were selected for their tunable optical properties, providing adjustable emissivity for versatile thermal camouflage while maintaining effective thermal management.
Earth news
Researchers discover role of absorptive aerosols in wintertime haze formation
Aerosol light absorption plays a crucial role in regulating the heat balance between the atmosphere and Earth's surface. This happens through two main mechanisms: the aerosol direct effect, where aerosols absorb solar radiation, and the aerosol indirect effect, which involves aerosols acting as cloud condensation nuclei and ice nuclei.
'Dangerous new era': Climate change spurs disaster in 2024
From tiny and impoverished Mayotte to oil-rich behemoth Saudi Arabia, prosperous European cities to overcrowded slums in Africa, nowhere was spared the devastating impact of supercharged climate disasters in 2024.
Australian bushfire burns area the size of Singapore
Australian firefighters said Friday they were fighting to control a bushfire racing through a national park that has consumed an area the size of Singapore.
Gaps identified in gravity wave simulations over Antarctica
Spotting flaws is sometimes the first ripple in making waves of innovation.
How land use changes could boost China's carbon sequestration potential
A team of researchers led by Professor Piao Shilong at the Institute of Carbon Neutrality of Peking University (PKU) has made significant advances in understanding how China's land-use changes—such as forest planting—can contribute to the country's efforts to reduce carbon emissions.
Rising temperatures threaten reefs—study pinpoints where conservation efforts are most needed
New science from the Wildlife Conservation Society (WCS) has mapped coral reefs across the Western Indian Ocean, uncovering unexpected pockets of climate-resilience that could offer hope for conservation efforts in the region.
Maryland sues maker of Gore-Tex over pollution from toxic 'forever chemicals'
Maryland is suing the company that produces the waterproof material Gore-Tex often used for raincoats and other outdoor gear, alleging its leaders kept using "forever chemicals" long after learning about serious health risks associated with them.
Oil leak in Peru tourist zone triggers 'environmental emergency'
Peru has declared an "environmental emergency" after an oil spill that triggered a clean-up operation on a stretch of northern coastline popular with tourists.
Astronomy and Space news
Study sheds more light on the nature of compact symmetric object DA 362
Indian astronomers have performed a multiwavelength study of a gamma-ray emitting compact symmetric object known as DA 362. Results of the study, presented in a research paper published December 17 on the pre-print server arXiv, yield more insights into the nature of this enigmatic object.
Researchers reveal changes in geometry and kinematics of the broad-line region in active galactic nuclei
Dr. Feng Haicheng from the Yunnan Observatories of the Chinese Academy of Sciences, along with his collaborators, has made progress in studying the geometrical and kinematical evolution of the broad-line region (BLR) in active galactic nuclei (AGN). The study was published in The Astrophysical Journal.
Astronauts face unique visual challenges at lunar south pole
Humans are returning to the moon—this time, to stay. Because our presence will be more permanent, NASA has selected a location that maximizes line-of-sight communication with Earth, solar visibility, and access to water ice: the Lunar South Pole (LSP).
NASA's Parker Solar Probe survives close brush with the sun's scorching surface
NASA's Parker Solar Probe has successfully made the closest approach to the sun, the space agency confirmed Friday.
Technology news
Hummingbird-inspired wings detect wind direction with 99% accuracy
Bio-inspired wind sensing using strain sensors on flexible wings could revolutionize robotic flight control strategy. Researchers at the Institute of Science Tokyo have developed a method to detect wind direction with 99% accuracy using seven strain gauges on the flapping wing and a convolutional neural network model.
Move over Mercedes: Chinese cars grab Mexican market share
The growing popularity of Chinese sport utility vehicles and pickup trucks has shaken up Mexico's luxury car market, hitting sales of traditionally dominant brands such as Mercedes-Benz and BMW.
OpenAI outlines plans to becoming for-profit company
ChatGPT-maker OpenAI laid out plans Friday for a new corporate structure shifting away from control by a non-profit—an issue of contention for the artificial intelligence trailblazer.
Sport produces mountains of high-tech waste—researchers are finding new ways to recycle it
In the early days of the modern Olympics and Paralympics, athletes competed using heavy, non-aerodynamic equipment. The record for throwing a javelin, for instance, has almost doubled since 1908, when the sport was introduced. Athletes have got better—but so has their equipment.
AI and robots pose new ethical challenges for society
Artificial intelligence (AI) and AI-enabled robots are becoming a bigger part of our daily lives. Real-time, flexible interactions between humans and robots are no longer just science fiction. As robots become smarter and more human-like in both behavior and appearance, they are transforming from mere tools to potential partners and social entities.
Study explores microbial methods for hydrogen production from waste
As the world grapples with rising energy consumption and escalating environmental crises, the need for sustainable energy solutions has never been more urgent. Microbial hydrogen production is emerging as a promising renewable energy pathway, offering a clean, high-energy-density alternative that can be sourced from a wide variety of feedstocks.
Montenegro to extradite crypto entrepreneur Do Kwon to US
Montenegro announced on Friday that it would extradite South Korean cryptocurrency entrepreneur Do Kwon to the United States, following a year and a half of dizzying court rulings and subsequent reversals over his removal.
A comprehensive survey of federated transfer learning: Challenges, methods and applications
Federated Learning (FL) has gained significant attention as a novel distributed machine learning paradigm that enables collaborative model training while preserving data privacy. However, traditional FL methods face challenges such as data heterogeneity, system heterogeneity, and labeled data scarcity.
Biology news
How monkeys recognize snakes so quickly
Dr. Nobuyuki Kawai from Nagoya University in Japan has found that the rapid detection of snakes by monkeys is because of the presence of snake scales as a visual cue. His findings highlight an evolutionary adaptation of primates to identify snakes based on specific visual characteristics.
Convergent evolution: stick and leaf insects share 20 body features
A team of biologists in Montana and Germany has found that, regardless of type, those insects that express a protective stick- or leaf-like appearance all evolved the same basic body parts. In their study, published in the journal Proceedings of the National Academy of Sciences, Romain Boisseau, Douglas Emlen and Sven Bradler measured and compared characteristics from 1,359 stick insects covering 212 stick and leaf species and assessed the possibility of predicting evolutionary change.
Scientists uncover insights into neuron function by simultaneously measuring two key signals in living animals
Researchers from Kyushu University have developed an innovative technique to non-invasively measure two key signals, membrane voltage and intracellular calcium levels, at the same time, in neurons of awake animals. This new method offers a more complete understanding of how neurons function, revealing that these two signals encode different information for sensory stimuli. The research was published in Communications Biology on September 16, 2024.
Conservationists call for fox-free zones to protect the Parma wallaby
The creation of more fox-free safe havens and greater collaboration between government and landowners is needed to ensure the survival of a species of wallaby, an expert from The Australian National University (ANU) argues.
Cats can get sick with bird flu. Here's how to protect them
The death of an Oregon house cat and a pet food recall are raising questions about the ongoing outbreak of bird flu and how people can protect their pets.
Research unveils new bacteriophage more effective than similar species
Bacteria are becoming increasingly resistant to antibiotics. This "race" can lead to a situation where antibiotics will stop suppressing pathogenic bacteria. Bacteriophages, natural "predators" of bacteria, are considered one of the alternatives.
How do you 'grow' an endangered starfish? Scientists are finding out
For the last decade, California's offshore seafloors have been missing a massive, colorful predator that keeps kelp-munching sea urchins in check.
Bird flu kills 20 big cats in Washington state sanctuary
Four cougars. Four bobcats. Two lynx. Even a Bengal tiger.
Study finds genetic and environmental factors neutralize bacterial growth
Researchers at the University of Tsukuba have conducted a high-throughput growth assay and used machine learning to address the genetic and environmental interplay of bacterial growth.
Mayotte faces environment, biodiversity crisis after cyclone
Mayotte has changed beyond recognition since a cyclone devastated the Indian Ocean territory, sparking an environment and biodiversity crisis that could last for a decade or more, scientists say.
Two endangered Florida predators found dead two days apart: 35 have been killed this year
Two highly endangered Florida panthers were found dead from vehicle strikes only two days apart, closing out a particularly deadly year for the species.
Roasting chestnuts, recycling walnuts: turning festive treats into sustainable new materials
EU researchers are exploring how to make strong and sustainable new materials from hard-to-crack nutshells.
Medicine and Health news
Sustained visual improvements in LHON patients treated with AAV gene therapy
A multinational study led by the LHON Study Group has revealed sustained visual improvements and a favorable safety profile five years following lenadogene nolparvovec gene therapy in patients with Leber hereditary optic neuropathy (LHON) caused by the MT-ND4 gene mutation.
Lifelong singles differ in personality traits and life satisfaction compared to partnered people, study reveals
Although being married or in a long-term relationship is often seen as the norm, more people are staying single for life. But singlehood can bring economic and medical disadvantages, especially as people get older and may become more reliant on others.
Study reveals macrophages' misunderstood role in lung fibrosis
Researchers at National Jewish Health and colleagues have completed the first study comparing lung macrophages in multiple models of lung injury. The research indicates that macrophages previously described as "pro-fibrotic" are insufficient to cause fibrosis on their own, opening the door to research that can help advance the understanding of how macrophage programming can help or hinder lung repair.
Societal inequality linked to reduced brain health in aging and dementia
Researchers from Trinity College Dublin have collaborated with international partners to explore if societal inequality affects the brain.
Brain's 'tug-of-war': Choosing between classical and operant conditioning
A study from Tel Aviv University could reshape our scientific understanding of how humans learn and form memories, particularly through classical and operant conditioning.
Detailed study reveals how cells coordinate to heal human wounds
A new study from Karolinska Institutet maps the cellular and molecular dynamics of human wound healing in exceptional detail. The study was published in Cell Stem Cell.
A public health emergency is waiting at the bottom of the antibiotic resistance cliff
The rise of antibiotic-resistant bacteria could lead to a catastrophic rise in infection-related deaths, according to new research led by Northern Arizona University.
Cooking garlic and onions at high heat can form trans fats, study finds
Trans-fatty acids (TFA) are a major cause of cardiovascular diseases. These harmful fats can accumulate along artery walls, restricting blood flow and increasing the risk of heart attacks. According to the World Health Organization (WHO), TFAs are responsible for over 278,000 annual deaths worldwide, and it recommends that TFA consumption should be limited to less than 1% of daily energy intake.
FDA approves first generic liraglutide once-daily injection
The U.S. Food and Drug Administration has approved the first generic referencing Victoza (liraglutide; Hikma Pharmaceuticals), a glucagon-like peptide-1 (GLP-1) receptor agonist indicated to improve glycemic control in adults and pediatric patients aged 10 years and older with type 2 diabetes.
Black children suspected of experiencing child abuse at higher rates, suggests study
Black children are suspected to have experienced child abuse at higher rates than children of other racial and ethnic backgrounds, according to a study published online Dec. 18 in JAMA Network Open.
New laser technology improves stent effectiveness in vascular treatments
A Korea Institute of Science and Technology (KIST) research team has developed a novel stent surface treatment technology using laser patterning. This technology promotes endothelial cell growth while inhibiting smooth muscle cell dedifferentiation in blood vessels.
What to know about infectious diseases during this holiday season
It's that time of year, when families and friends come together to share their holiday cheer and a few circulating pathogens.
Exploring options to keep costs in focus when buying new glasses
Now that the Federal Trade Commission is doubling-down on its rule requiring eye doctors to provide their patients' prescriptions after eye exams, consumers are encountering more options for their purchases than just those in their doctor's office lobby.
New genetic mutation found to suppress cancer growth
UT Southwestern Medical Center researchers have identified a genetic mutation that slows the growth of melanoma and potentially other cancers by harnessing the power of the immune system. Their findings, published in the Journal of Experimental Medicine, could lead to new treatments that improve outcomes from existing cancer immunotherapies.
Q&A: How circadian rhythms have been implicated in diseases from dementia to cancer
In this season of short days and long winter nights, it's easy to feel out of sorts. Those who suffer from seasonal affective disorder, a form of depression that's closely linked to the circadian rhythms that govern our sleep cycles, know this all too well. But those same rhythms, which are themselves governed by biological clocks, can affect much more than mood and sleep.
Monitoring long-term cardiac activity with contactless radio frequency signals
A research team led by Prof. Chen Yan at the University of Science and Technology of China (USTC) has taken a leap forward in cardiovascular health monitoring. They have developed a non-invasive radio frequency (RF)-based system capable of monitoring heart rate variability (HRV) with clinical-grade accuracy over extended periods.
Proposed FDA rule targets asbestos in talc cosmetic products
The U.S. Food and Drug Administration (FDA) has proposed a new rule to require standardized testing of talc-containing cosmetics for asbestos, a known carcinogen linked to serious illnesses such as lung and ovarian cancers.
Digital health care consultations not enough for safe assessment of tonsillitis
Tonsillitis is a common reason for visits to the doctor and prescriptions of antibiotics in primary care. To determine whether a patient needs antibiotics, doctors use the so-called Centor Criteria for tonsillitis. The criteria include fever, tender and swollen lymph nodes in the angles of the jaw and inspection of the tonsils.
New bird flu mutation discovered in US as cat infections cause alarm
The ongoing spread of bird flu in the United States has alarmed experts—not just because of human cases causing severe illness, but also due to troubling new instances of infections in cats.
Money, gun violence, hate crimes: Poll reveals top worries at the end of 2024
Should you cut back on doom scrolling in 2025? Worries about money, gun violence and hate crimes ranked high among many people's lists of worries at the end of 2024, according to a poll that is part of American Psychiatric Association (APA) Healthy Minds Monthly opinion poll series. The survey included 2200 U.S. adults.
Most families exclude food allergens from their household
Most families choose to exclude food allergens from their households, and those that do report more food allergy (FA)-related concerns, according to a research letter published online Dec. 27 in JAMA Network Open.
U.S. health care spending reached $4.9 trillion in 2023
Health care spending in the United States reached $4.9 trillion and increased 7.5 percent in 2023, according to a study published online Dec. 18 in Health Affairs.
Bidirectional association found between rheumatoid arthritis, COPD
There is a bidirectional association between rheumatoid arthritis (RA) and chronic obstructive pulmonary disease (COPD), according to a review published online Dec. 1 in Frontiers in Immunology.
Influenza vaccine effective against severe illness in children
Influenza vaccine is effective for preventing severe influenza illness among children, according to a study published online Dec. 27 in JAMA Network Open.
Children have various symptoms within five years before MS diagnosis
Children and adolescents with multiple sclerosis (MS) have a range of symptoms, signs, and diagnoses within five years before diagnosis, according to a study published online Dec. 27 in JAMA Network Open.
Reporting of human adenoviruses has declined since COVID-19
Reporting of human adenovirus (HAdV) types decreased since the COVID-19 pandemic, according to research published in the Dec. 19 issue of the U.S. Centers for Disease Control and Prevention Morbidity and Mortality Weekly Report.
FDA approves Ryoncil for steroid-refractory acute graft-versus-host after allo-HSCT
The allogeneic bone marrow-derived mesenchymal stromal cell (MSC) therapy Ryoncil (remestemcel-L-rknd) has been approved for treatment for steroid-refractory acute graft-versus-host disease (SR-aGVHD) in pediatric patients aged 2 months or older, according to a press release from the U.S. Food and Drug Administration.
Disparities seen in firearm, motor vehicle crash fatalities in U.S. youth
Disparities exist in firearm and motor vehicle crash (MVC) fatalities among youth in the United States, according to a study published online Dec. 23 in JAMA Pediatrics.
Could a maverick raw milk farmer from California help RFK Jr. shape US health policy?
As Mark McAfee—the maverick leader of California's largest raw milk dairy—works on getting his Fresno County dairy out of bird flu quarantine, his name has surfaced as a possible advisor for the Food and Drug Administration on shaping raw milk policy in the United States.
He went in for a colonoscopy: The hospital charged $19,000 for two
Tom Contos is an avid runner. When he started experiencing rectal bleeding in March, he thought exercise could be the cause and tried to ignore it. But he became increasingly worried when the bleeding continued for weeks.
Pediatrician suggests eight parenting goals to start the new year strong
New Year's resolutions are typically sweeping and grand. But you can often reap the biggest rewards by building off strengths already in place. Helping to make your family safer, stronger and more harmonious in the coming year may not require a complete overhaul, but rather a few strategic tweaks.
Colorado stops water testing at state lab amid investigation into manipulated data
The Colorado Department of Public Health and Environment has suspended a second chemist and stopped water testing at the state laboratory amid a state investigation into manipulated data.
University of Washington plans to launch mental health crisis response team this spring
Starting this spring, the University of Washington will try a new approach to helping students and employees in mental health crises, based on a philosophy that's become increasingly mainstream: Mental health professionals are better equipped than police to respond to some emergencies.
Boston to distribute Narcan via vending machines, kiosks to prevent opioid overdoses
Boston will have four vending machines and eight indoor kiosks distributing life-saving Narcan and other harm reduction supplies in another step toward preventing overdose deaths, Mayor Michelle Wu and the Boston Public Health Commission announced.
Why it's important to update adult vaccinations for a new year
Personal health is often among the top New Year's resolutions each January. Beyond diet and exercise, Dr. John Presutti, a Mayo Clinic family medicine physician, says the start of a new year is a good calendar reminder to update adult vaccinations.
Other Sciences news
Genetic analysis reveals kinship in ancient Moche sacrifice
Harvard University-led researchers investigated an elite Moche burial group at Huaca Cao Viejo, uncovering new details on kin-based status within Moche society. The evidence centers on four generations of a family dated to approximately 500 CE, with genetic data connecting the Señora de Cao to a sibling, a grandparent, and two sacrificed juveniles.
Researchers examine corporate social responsibility's impact on global online shopping
Online shopping is revolutionizing how we access and purchase products from international markets. Despite this growth, many consumers remain hesitant to purchase goods from foreign companies due to trust issues, cultural differences, and concerns about unfamiliar products.
Study shows that 11- to 12-year-olds use smartphones mainly to talk to family and friends
The moment a child gets his/her first mobile phone as a gift is a source of worry for many parents. Concern about the risks associated with smartphone use has led to more and more initiatives trying to delay that moment.
Boardroom diversity affects carbon emissions—but not in the way you think
Extreme weather and record-breaking heat waves are becoming the new normal. Most people have begun to accept the seriousness of grim reports from the UN's climate panel and that climate change is a result of human activity.
Migration intentions: The interactive roles of affective polarization and dyadic political attitudes
The 2019 Anti-Extradition Law Amendment Bill (Anti-ELAB) Movement triggered a dramatic shift in Hong Kong's political landscape. In 2020, the Chinese central government enacted the National Security Law to tighten its control over Hong Kong and reformed the electoral system, imposing stricter candidate qualifications.
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