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Science News for January 7, 2025


Breathing life into ancient texts: Unveiling Greco-Roman medicine through modern reenactments

A new study combines science and history to uncover new insights into Greco-Roman medical practices. Researchers recreated Galen's 2nd-century CE dissections, clarifying discrepancies in the text and shedding light on the enduring influence of ancient medicine on modern thought.

SourceThe Hebrew University of Jerusalem·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateJan 7, 2025

One-dimensional perovskite lattice tilts & stretches to stabilize excitons

Researchers demonstrated the existence of an Exciton-Polaron in a quasi-one-dimensional hybrid perovskitoid, showcasing its potential for optoelectronic applications. The study reveals that the one-dimensional lattice is soft and susceptible to reorganization, enabling tunable frameworks for new quantum technologies.

SourceTata Institute of Fundamental Research·JournalThe Journal of Physical Chemistry Letters·TypeExperimental study·DateJan 7, 2025

New research uncovers the impact of external rivalries on workplace collaboration

A recent study published in Strategic Management Journal reveals that employees' external affiliations with rival organizations can significantly disrupt internal teamwork. Researchers found that dual-affiliated employees were less likely to collaborate effectively when working for their shared employer.

SourceStrategic Management Society·JournalStrategic Management Journal·TypeData/statistical analysis·DateJan 7, 2025

Optical imaging technique offers more precise diagnosis of sleep apnea

A recent study has explored a new imaging approach that uses swept-source optical coherence tomography to visualize the upper airway with high precision. By integrating computational fluid dynamics, researchers were able to identify areas of turbulence and pinpoint obstruction sites, leading to more accurate diagnoses and treatment pla...

SourceSPIE--International Society for Optics and Photonics·JournalBiophotonics Discovery·DateJan 7, 2025

Researchers use AI to help predict and identify subtypes of Type 2 diabetes from simple glucose monitor

A new AI-based algorithm can parse three of the four most common Type 2 diabetes subtypes using data from continuous blood glucose monitors. The technology could help individuals take preventative measures by identifying prediabetes warning signs and adjusting dietary or exercise habits accordingly.

SourceStanford Medicine·JournalNature Biomedical Engineering·TypeObservational study·DateJan 7, 2025

New AI technique generates clear images of thick biological samples without the fancy hardware

Researchers have developed a new AI method that produces sharp microscopy images throughout a thick biological sample, count cells more accurately, and trace vessels in embryos. The technique doesn't require additional equipment beyond a standard microscope and is more accessible than traditional adaptive optics techniques.

SourceHoward Hughes Medical Institute·JournalNature Communications·DateJan 7, 2025

SETI Forward recognizes tomorrow’s cosmic pioneers

The SETI Institute's 2024 Forward Award recipients, Gabriella Rizzo and Pritvik Sinhadc, conducted innovative research on extremophiles in deep-sea hydrothermal vents and gravitational wave signals. Their work has the potential to reveal new life forms and technosignatures, pushing humanity's understanding of the universe and our place...

Arkansas Clean Plant Center leads global effort to wipe ‘phantom agents’ from pathogen regulatory lists

The Arkansas Clean Plant Center is leading a global effort to remove over 120 'phantom agents' from pathogen regulatory lists. These outdated agents impede access to clean plant materials, hindering crop production and food security. The center's efforts aim to streamline global germplasm exchange using modern molecular techniques.

SourceUniversity of Arkansas System Division of Agriculture·JournalPlant Disease·TypeObservational study·DateJan 7, 2025

Research reveals unique features of brain cells linked to neurodevelopmental conditions

A recent study has identified distinct features in two types of brain cells, intratelencephalic (IT) neurons and pyramidal tract (PT) neurons, which may affect their vulnerability to neurodevelopmental conditions. The research highlights the importance of understanding how these brain cells exchange information through their synapses.

SourceVlaams Instituut voor Biotechnologie·JournalNature Communications·TypeExperimental study·DateJan 7, 2025

Visual cues for dry skin

Researchers found that emphasizing high-spatial-frequency components of skin lightness decreases the perception of moisture, closely resembling physiological phenomena associated with skin dryness. The study aimed to investigate visual cues for skin moisture and dryness, shedding new light on this crucial aspect of human health.

SourceToyohashi University of Technology (TUT)·JournalJournal of the Optical Society of America A (JOSA)·TypeExperimental study·DateJan 7, 2025

Dinosaurs roamed the northern hemisphere millions of years earlier than previously thought, according to new analysis of the oldest North American fossils

Researchers have discovered a new dinosaur species in present-day Wyoming that challenges the mainstream view on dinosaur emergence and spread. The 230-million-year-old fossil remains suggest dinosaurs were present in the northern hemisphere millions of years earlier than previously known.

SourceUniversity of Wisconsin-Madison·JournalZoological Journal of the Linnean Society·TypeObservational study·DateJan 7, 2025

Study unveils differential lineage plasticity of ependymal cells and astrocytes in spinal cord injury repair

Researchers discovered ependymal cells have limited proliferative capacity after spinal cord injury, whereas astrocytes can transdifferentiate into oligodendrocytes to promote remyelination. Material transplantation enhances astrocyte-mediated repair, offering a promising approach for future SCI therapies.

SourceChinese Academy of Sciences Headquarters·JournalProceedings of the National Academy of Sciences·DateJan 7, 2025

Breakthrough Durham University research offers new insights into quenching electrical waves in the heart

Researchers at Durham University have developed a theoretical framework to predict the efficacy of quenching electrical pulses in excitable media, such as those found in the human heart. This breakthrough could significantly accelerate the development of more efficient defibrillation techniques for treating cardiac arrhythmias.

SourceDurham University·JournalPhysical Review E·DateJan 7, 2025

Childhood smoking increases a person’s risk of developing COPD

A recent study published in the Journal of the COPD Foundation found that childhood smoking before age 15 significantly increases a person's risk of developing chronic obstructive pulmonary disease (COPD) later in life. The research examined a nationally representative sample of adults and accounted for secondhand smoke exposure, highl...

SourceCOPD Foundation·JournalChronic Obstructive Pulmonary Diseases Journal of the COPD Foundation·DateJan 7, 2025

Research Spotlight: Researchers reveal the influences behind timing of sleep spindle production

A study published in PNAS found that short-term timing patterns of past brain activity are the primary determinant of sleep spindle timing, accounting for over 70% of its variability. These individualized patterns change with age and provide a new target for understanding how sleep supports memory.

SourceBrigham and Women's Hospital·JournalProceedings of the National Academy of Sciences·TypeObservational study·DateJan 7, 2025

Unveiling hidden climate dynamics: Researchers use mathematics of optimal transport to decode 21st-century climate change

A new method called Wasserstein Stability Analysis (WSA) offers fresh insights into climate change by introducing a perspective on extreme events and probability distribution shifts. The study uncovered a La Niña-like temperature shift in the equatorial eastern Pacific, which traditional methods had overlooked.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateJan 7, 2025

Predicting the progression of autoimmune disease with AI

A new AI model developed by researchers at Penn State College of Medicine can predict the progression of autoimmune disease among those with preclinical symptoms up to 1,000% more accurately. The GPS model integrates data from large genetic studies and electronic health records to identify individuals at high risk of disease progression.

SourcePenn State·JournalNature Communications·TypeComputational simulation/modeling·DateJan 7, 2025

Sex differences in brain structure present at birth

The study found that female infants had significantly more grey matter than male infants, while male infants had more white matter. These sex differences are average and do not imply better or worse brains, but rather reflect biological sex differences during prenatal brain development.

SourceUniversity of Cambridge·JournalBiology of Sex Differences·TypeData/statistical analysis·DateJan 7, 2025

Compound derived from Brazilian plant exhibits action against parasite that causes visceral leishmaniasis

Researchers have synthesized a molecule inspired by Nectandra leucantha and found it to be four times more potent than the prototype, killing Leishmania infantum selectively. The compound's bioavailability was improved, allowing it to circulate in the rat's organism for longer periods.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalAntimicrobial Agents and Chemotherapy·DateJan 7, 2025

More than half of college students report alcohol-related harms from others

A new study reveals that more than half of US college students experience alcohol-related harms caused by others. The findings show that students who identified as White, cisfemale, or transgender, and those living with roommates, were at greater risk. Commonly reported harms included social harm, sleep disruptions, and emotional hurt.

SourceBoston University School of Public Health·JournalDrug and Alcohol Review·TypeSurvey·DateJan 7, 2025

USC study finds new evidence linking dementia to problems with the brain’s waste clearance system

A new USC study validates a biomarker linked to vascular dementia and suggests that glymphatic damage drives cognitive decline. The findings provide a potential pathway to explain how cognitive impairment arises, offering a target for clinical researchers seeking treatments for vascular dementia.

SourceKeck School of Medicine of USC·JournalAlzheimer s & Dementia·TypeImaging analysis·DateJan 7, 2025

Tumor-secreted protein may hold the key to better treatments for deadly brain tumor, study finds

A study suggests targeting endocan, a protein produced by endothelial cells in blood vessels, could slow tumor growth and make glioblastoma more vulnerable to existing treatments. The discovery may lead to new strategies to combat glioblastoma, which has an average lifespan of just 12-15 months.

Revolutionizing data centers: Penn engineers’ breakthrough in photonic switching

Researchers at the University of Pennsylvania School of Engineering and Applied Science have developed a novel photonic switch that can redirect signals in trillionths of a second with minimal power consumption. The new switch uses non-Hermitian physics and silicon material to achieve unprecedented speed and efficiency.

SourceUniversity of Pennsylvania School of Engineering and Applied Science·JournalNature Photonics·TypeExperimental study·DateJan 7, 2025

New genetic biocontrol breakthrough offers hope against disease-carrying mosquitoes and agricultural pests

Researchers at Macquarie University have developed a revolutionary new biological pest control method called the Toxic Male Technique (TMT). This approach genetically engineers male insects to produce insect-specific venom proteins in their semen, significantly reducing female lifespan and disease transmission.

SourceMacquarie University·JournalNature Communications·TypeExperimental study·DateJan 7, 2025

Cutting edge simulations unveil clues to human evolution

Researchers used computer simulations to model the running capabilities of Australopithecus afarensis, finding that Lucy's maximum speeds were significantly slower than those of modern humans. The study suggests that the human body evolved to improve running performance, with top speed being a more critical driver than previously thought.

SourceUniversity of Liverpool·JournalCurrent Biology·DateJan 7, 2025

Crop switching for climate change in China

A study recommends planting alternative crops in areas currently growing maize and rapeseed to increase productivity by 14.1% while minimizing leached nitrogen and water use. The optimal crop distributions also promote future food security with coordinated actions at the national scale.

SourcePNAS Nexus·JournalPNAS Nexus·DateJan 7, 2025

University of Cincinnati Cancer Center study identifies potential new target to overcome breast cancer resistance

A University of Cincinnati Cancer Center study identifies microRNA miR-205 as a promising new target to overcome breast cancer treatment resistance and improve outcomes. The research found that boosting levels of miR-205 could block the production of MED1, a protein responsible for treatment resistance, and improve treatment outcomes.

SourceUniversity of Cincinnati·JournalCancers·DateJan 7, 2025

Feathered fortunes: Bird diversity soars in China's Yangtze River Basin

A significant rise in bird diversity across the Yangtze River Basin has been observed, driven by ecological restoration efforts, but challenges persist in downstream regions with wetland degradation. Targeted conservation strategies are crucial for vulnerable wetland areas to halt biodiversity decline and restore ecosystem balance.

SourceNanjing Institute of Environmental Sciences, MEE·JournalEco-Environment & Health·DateJan 7, 2025

Earth’s air war: Explaining the delayed rise of plants, animals on land

A Yale-led study suggests that elevated marine iodine concentrations prevented a protective ozone shield from forming in the Earth's atmosphere, delaying the emergence of complex life on land. This delay led to unstable and low ozone levels persisting for hundreds of millions of years, exposing the planet to high fluxes of solar UVR.

SourceYale University·JournalProceedings of the National Academy of Sciences·DateJan 7, 2025

Researchers have a better understanding of how our cells dispose of waste while developing ways to control it

Scientists have identified the crucial role of weak molecular interactions in triggering autophagy, a process that breaks down unnecessary cell components. By artificially controlling these interactions, researchers aim to improve the degradation of aggregates in neurodegenerative diseases and enhance cancer treatments.

SourceUniversity of Freiburg·JournalNature Cell Biology·DateJan 7, 2025

Ready to quit vaping in the new year? A new study uncovers the best ways

A new study published in the Cochrane Database of Systematic Reviews suggests that varenicline, a prescription medication, and text message-based interventions can help people quit vaping. The findings are particularly promising for young people aged 13 to 24, who showed significant success with text message-based programs.

SourceUniversity of Massachusetts Amherst·JournalCochrane Database of Systematic Reviews·TypeLiterature review·DateJan 7, 2025

Desert nectar: Agave genome study sheds light on drought tolerance

Researchers have uncovered key genes and regulatory pathways governing crassulacean acid metabolism (CAM) photosynthesis in Agave hybrid NO.11648, a process critical for plant survival in arid climates. The study provides a comprehensive analysis of the genome, revealing a whole-genome duplication event and identifying transcription fa...

For many low-income single moms, government aid serves as their paid family leave, study shows

A new study from Oregon State University reveals that many low-income single mothers rely on government cash assistance around childbirth as a form of paid family leave. The study found that most participants use the program for less than a year, highlighting its potential to support vulnerable families during critical life transitions.

SourceOregon State University·JournalJournal of Marriage and Family·TypeData/statistical analysis·DateJan 7, 2025

University of Minnesota scientists advance nanobody technology to combat deadly Ebola virus

Researchers at the University of Minnesota have developed two new nanobody inhibitors for Ebola: Nanosota-EB1 and Nanosota-EB2. These tiny antibodies target different parts of the virus, preventing it from attaching to cells and spreading. Lab tests show promising results, achieving a 100% survival rate in Ebola-infected mice.

SourceUniversity of Minnesota Medical School·JournalPLOS Pathogens·TypeExperimental study·DateJan 7, 2025

Guildford’s first “living school gate” and green infrastructure deliver major health and environmental benefits

A pioneering study at Guildford's Sandfield Primary School demonstrates the benefits of protective green infrastructure in reducing particle pollution levels and traffic-related noise. The 'living school gate' installation showed a nearly one-third reduction in air pollution, as well as a 5-decibel decrease in distracting traffic noise.

SourceUniversity of Surrey·JournalScience of The Total Environment·DateJan 7, 2025

Unraveling the physics behind severe flash floods in Indonesia's new capital on March 15-16, 2022

Researchers identified mesoscale convective systems as the primary cause of severe flash flooding in Nusantara, with MJO and equatorial waves playing a crucial role in MCS development. Local factors also modulated the intensity and duration of the event, highlighting the need for improved rainstorm forecasting and risk management.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateJan 7, 2025

Sunken worlds under the Pacific?

Researchers have discovered unexpected zones in Earth's mantle beneath large oceans and continents, contradicting current plate tectonic theories. The new high-resolution model uses full-waveform inversion to reveal anomalies that may indicate ancient or iron-rich material.

SourceETH Zurich·JournalScientific Reports·TypeComputational simulation/modeling·DateJan 7, 2025

Bioengineered blood vessels show promise in trauma care

A new type of bioengineered blood vessel demonstrated superior infection resistance and better limb preservation compared to conventional synthetic grafts. The technology has the potential to reduce amputation numbers significantly, as it can be implanted immediately and is more resistant to infection than traditional options.

SourceRutgers University·JournalJAMA Surgery·TypeExperimental study·DateJan 7, 2025

Regular physical activity before cancer diagnosis may lower progression and death risks

Research suggests that engaging in low to moderate levels of physical activity before a cancer diagnosis can significantly lower the risk of disease progression and death. The study analyzed data from over 28,000 participants with stage 1 cancers and found that rates of cancer progression and death were lower among those who were physi...

SourceBMJ Group·JournalBritish Journal of Sports Medicine·TypeObservational study·DateJan 7, 2025

Crafting the perfect bite of meat

Researchers from The Hebrew University of Jerusalem have pioneered the use of metamaterials to replicate the texture and structure of traditional meat. Their novel approach enables the mass production of whole cuts of meat at a cost of $9 per kilogram, making sustainable protein alternatives more accessible.

SourceThe Hebrew University of Jerusalem·JournalNature Communications·TypeExperimental study·DateJan 7, 2025

SwRI models Pluto-Charon formation scenario that mimics Earth-Moon system

Researchers at Southwest Research Institute propose a new model for the formation of Pluto and Charon, suggesting they may have originated from a giant collision similar to the Earth-Moon system. The scenario supports Pluto's active geology and possible subsurface ocean, with implications for the Kuiper Belt.

SourceSouthwest Research Institute·JournalNature Geoscience·TypeComputational simulation/modeling·DateJan 7, 2025