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Science News for April 20, 2026


Alliance study shows new promise against locally advanced lung cancer

A study by the Alliance Foundation Trials shows that combining immunotherapy and chemotherapy before surgery can help more patients with locally advanced non-small cell lung cancer undergo complete cancer resection, improving their long-term health. The treatment also led to high rates of lymph node clearance and successful surgical re...

SourceAlliance for Clinical Trials in Oncology·JournalLung Cancer·TypeExperimental study·DateApr 20, 2026

The moment scents disappear, the clock of dementia begins ticking: DGIST identifies the cause of olfactory impairment for the first time

A study by DGIST researchers reveals that the olfactory system is the first to be damaged in Alzheimer's disease due to distinct immune responses in different brain regions. The findings provide new insights into the early warning signs of dementia and potential diagnostic markers.

“Seeing clearly even in the fog”: DGIST develops next-generation infrared image sensor for autonomous driving

A research team at DGIST has developed a next-generation near-infrared image sensor technology combining quantum dots with two-dimensional semiconductors. The new sensor exhibits high responsivity and detectivity, enabling rapid detection of weak infrared signals in fog or smoke.

Bioinspired auxetic metastructures enable biomechanically adaptive, machine learning‑enhanced self‑powered sensing with ultrahigh efficiency

Researchers developed bioinspired auxetic triboelectric nanogenerators that resolve mechanical mismatch challenges in flexible sensors. The devices achieve high energy conversion efficiencies and conform to biological tissues with minimal energy loss.

SourceShanghai Jiao Tong University Journal Center·JournalNano-Micro Letters·TypeNews article·DateApr 20, 2026

Stretching and squeezing diamond opens new path for ultra-precise quantum sensors

Researchers discovered a way to tune the quantum properties of tiny defects in diamond by stretching or compressing the crystal, enabling next-generation sensors with unprecedented precision. The silicon-vacancy center, a promising building block for quantum devices, responds predictably to mechanical deformation.

SourceSingapore University of Technology and Design·JournalApplied Physics Letters·DateApr 20, 2026

Simple ocean-based model forecasts El Niño skillfully, points to a strong event ahead

Researchers have developed a simple yet effective ocean-based model that can predict El Niño and La Niña 15 months in advance using only surface temperature and height observations. The model leverages two core climate memories, Wyrtki memory and Hasselmann memory, to achieve forecast skill comparable to more complex models.

SourceUniversity of Hawaii at Manoa·JournalGeophysical Research Letters·TypeComputational simulation/modeling·DateApr 20, 2026

Average age of young fatal stab victims now 14, national data indicate

In an analysis of child and teen fatalities from 2019 to 2024, the average age of young fatal stab victims is now 14, with Black ethnicity individuals being 13 times more likely to be fatally stabbed. Children living in the most deprived areas are 7 times more likely to die of their wounds than those in affluent areas.

SourceBMJ Group·JournalEmergency Medicine Journal·TypeData/statistical analysis·DateApr 20, 2026

Study uncovers hidden factor shaping dementia caregiving stress

A study from Rice University reveals that caregivers' relationships play a crucial role in their mental and physical health. Caregivers who are more self-reliant or emotionally distant experience worse health outcomes, but those with higher relationship satisfaction have stronger buffering effects.

SourceRice University·JournalBiopsychosocial Science and Medicine·TypeExperimental study·DateApr 20, 2026

Novel strategies for coral restoration

Researchers at University of Miami developed a novel strategy to enhance survival rates of lab-grown baby corals by modifying the alkalinity of growth tiles. By increasing sodium carbonate levels, they observed a fourfold improvement in early-stage coral survival, paving the way for potential coral restoration efforts.

SourceUniversity of Miami·JournalCommunications Earth & Environment·TypeExperimental study·DateApr 20, 2026

Mini brain-like structures grown in lab may help scientists treat, diagnose and stage Alzheimer’s disease

Researchers from Johns Hopkins Medicine have developed mini brain-like structures grown in the lab that could be used to evaluate how patients with Alzheimer's disease respond to certain drugs. The study found that tiny particles secreted by these brain tissues may contain cellular information that could help scientists find new biomar...

SourceJohns Hopkins Medicine·JournalAlzheimer’s & Dementia·DateApr 20, 2026

Are your staffing metrics enough? New research on patient falls says maybe not

A new study from the University of Pennsylvania School of Nursing's Center for Health Outcomes and Policy Research found that nurses' assessments of their staffing adequacy is a more accurate predictor of patient safety on medical surgical units than traditional administrative data. In contrast, objective metrics like RNHPPD proved to ...

Fondazione Telethon’S Genomic Program end the diagnostic odissey for hundreds of children

The program achieved a definitive genetic diagnosis in nearly half of enrolled children, identifying pathogenic variants across 330 genes. Families received timely diagnoses, allowing accurate genetic counseling and informed reproductive choices, while guiding clinical management and opening access to targeted therapies.

SourceFondazione Telethon·JournalGenetics in Medicine Open·TypeExperimental study·DateApr 20, 2026

Massive Atlantic sargassum blooms traced to west Africa

Scientists have traced the origin of massive Atlantic Sargassum blooms to coastal waters near the Gulf of Guinea in West Africa. The study uses physics-based modeling and probabilistic analysis to show that blooms can be tracked back up to two years before they are detected by satellites.

SourceUniversity of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science·JournalPNAS Nexus·TypeComputational simulation/modeling·DateApr 20, 2026

Implanted nerve stimulation for obstructive sleep apnea found to be safe and effective in new trial

A new trial found that proximal hypoglossal nerve stimulation (pHGNS) significantly reduced breathing interruptions during sleep and improved daytime sleepiness without adverse events. The therapy, an FDA-approved alternative to nasal positive airway pressure, was found to be safe and effective in patients with moderate-to-severe obstr...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeNews article·DateApr 20, 2026

The physics of brain development: How cells pull together to form the neural tube

Georgia Tech researchers used computer models to reveal how cells physically pull the neural tube closed during early development. The study found that forces generated by cells create a 'purse string' mechanism made of actin, which tightens and draws the tube closed through a synchronized pattern of cell movement.

SourceGeorgia Institute of Technology·JournalCurrent Biology·TypeComputational simulation/modeling·DateApr 20, 2026

Exercise and cancer research: Ibuprofen is another option to ease chemo-brain

A new study suggests that a low dose of ibuprofen can help alleviate chemo-brain symptoms in cancer patients, but exercise remains the most beneficial intervention. Researchers randomized 86 patients to receive either exercise plus ibuprofen or other treatments and found that exercise significantly improved cognitive function.

SourceUniversity of Rochester Medical Center·JournalCancer·TypeRandomized controlled/clinical trial·DateApr 20, 2026

Study finds each protein in the epigenome produces a different pattern of gene expression

A new study found that every type of epigenome protein produces a distinct pattern of gene expression, surpassing the on/off switch functionality. This discovery has significant implications for cellular engineering, enabling more dynamic control over cellular behavior and potential applications in biomanufacturing and bioproduction.

SourceNorth Carolina State University·JournaliScience·TypeExperimental study·DateApr 20, 2026

Research links tinnitus with serotonin

A new study published in the Proceedings of the National Academy of Sciences found a link between elevated serotonin levels and tinnitus behavioral symptoms. The research suggests that clinicians should recognize and validate patient reports of medication-associated increases in tinnitus when prescribing antidepressants like SSRIs.

SourceOregon Health & Science University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateApr 20, 2026

Interdisciplinary care is a promising approach for pediatric patients with long-COVID

A new study found that pediatric patients with long-COVID experience a high symptom burden, including sleep disturbance, anxiety, depression, and fatigue. The study describes an interdisciplinary care approach that incorporates integrative medicine, nutrition, and lifestyle modifications to manage symptoms.

SourceUniversity Hospitals Cleveland Medical Center·JournalOpen Forum Infectious Diseases·DateApr 20, 2026

Precision measurement at the Mainz Microtron MAMI: Hypertriton more strongly bound than previously assumed

An international research team at the Mainz Microtron MAMI achieved the most precise measurement of hypertriton binding energy to date, revealing it is significantly more strongly bound than earlier experiments suggested. This breakthrough provides new insights into the interaction between hyperons and nucleons.

SourceJohannes Gutenberg Universitaet Mainz·JournalPhysical Review Letters·TypeExperimental study·DateApr 20, 2026

Lost millennium of Galápagos deep-sea corals linked to major Pacific climate shift

Scientists discovered that deep-water coral ecosystems in the Galápagos region vanished for over 1,000 years due to prolonged La Niña-like conditions. The study found that these ecosystems may be more susceptible to climate change than previously thought, with significant implications for conservation efforts.

SourceUniversity of Bristol·JournalProceedings of the National Academy of Sciences·DateApr 20, 2026

A CNIO group contributes to identifying which breast lesions will progress to cancer, thus helping avoid overtreatment

A study by the CNIO group has identified a genetic signature in precancerous breast lesions that can predict which ones will evolve into invasive tumours. This discovery could help avoid over-treatment of women diagnosed with ductal carcinoma in situ, a common precancerous lesion.

SourceCentro Nacional de Investigaciones Oncológicas (CNIO)·JournalNature Communications·TypeExperimental study·DateApr 20, 2026

Earliest Cambrian microfossils preserve ringed worms

The discovery of seven millimeter-sized phosphatized fossils from the early Fortunian Kuanchuanpu Formation provides evidence of annelid body fossils from Cambrian Orsten-type fossil localities. The findings suggest that early annelids were polychaetes, supporting the hypothesis that polychaete morphologies were primitive among annelids.

SourceChinese Academy of Sciences Headquarters·JournalProceedings of the National Academy of Sciences·TypeObservational study·DateApr 20, 2026

Decades-long study reveals how blood cancers evolve and why some patients' disease worsens

Researchers tracked 30 patients with chronic blood cancers over time, finding that those whose disease remained stable had 'steady' blood cells without additional mutations. Conversely, those with progressing diseases developed changes in DNA years before symptoms worsened. This challenges current views on diagnosing patients without t...

SourceWellcome Trust Sanger Institute·JournalCancer Discovery·DateApr 20, 2026

Laser additive manufacturing of metallic lattice structures: material-structure-property concept, and future perspective

This review highlights the key findings of laser additive manufacturing of metallic lattice structures, including TPMS architectures, node reinforcement, and machine learning-driven optimization. The study demonstrates enhanced mechanical performance, energy absorption, and multifunctional capabilities such as thermal management and vi...

SourceELSP·JournalAdvanced Manufacturing·TypeLiterature review·DateApr 20, 2026

Nordic Seas Overturning Circulation strengthens as Atlantic Meridional Overturning Circulation weakens, new study

The Nordic Seas Overturning Circulation (NOC) has strengthened while the Atlantic Meridional Overturning Circulation (AMOC) has weakened due to global warming. Models project a slight increase in NOC's density-driven mechanism, which counterintuitively strengthens the northern branch despite AMOC weakening.

SourcePotsdam Institute for Climate Impact Research (PIK)·JournalOcean Science·TypeComputational simulation/modeling·DateApr 20, 2026

Light can twist matter in unexpected ways

Researchers at Hokkaido University developed a new method to measure small forces with high precision, discovering light can twist tiny objects sideways. This phenomenon depends on optical helicity, a subtle property of the light's electromagnetic field.

SourceHokkaido University·JournalNature Physics·TypeExperimental study·DateApr 20, 2026

NUS scientists devise AI model that “reads” protein pairs, unlocking new insights into disease and drug discovery

Researchers at NUS have developed a paired protein language model (PPLM) to predict protein interactions, improving accuracy by up to 17% over leading methods. The model has strong performance across multiple tasks and can capture biologically meaningful relationships between proteins.

SourceNational University of Singapore·JournalNature·TypeExperimental study·DateApr 20, 2026

Advanced artificial intelligence algorithms and hardware acceleration techniques applied to material structure design

Researchers review advanced AI algorithms and hardware acceleration techniques to predict material properties, optimize structures, and discover new materials. This review provides crucial guidance for accelerating data-driven materials research and fostering next-generation functional materials development.

SourceELSP·JournalAI & Materials·TypeLiterature review·DateApr 20, 2026

Unexpectedly attractive molecules

Researchers at Ehime University discovered a π-stacked dimer of positively charged antiaromatic molecules stabilized upon stacking, contrary to their inherent instability. The findings suggest that intermolecular stacking can partially attenuate the intrinsic instability characteristic of antiaromatic molecules.

SourceEhime University·JournalChemical Communications·DateApr 20, 2026

Physicists refute famous 2025 study claiming daylight saving time poses severe health risks

Professors José María Martín-Olalla and Jorge Mira Pérez refute the 2025 study linking Daylight Saving Time to negative health outcomes, citing a critical error in methodology. The original study's conclusions were based on an incorrect calculation of daily readjustments, which resulted in a zero annual cumulative total.

SourceUniversity of Seville·JournalProceedings of the National Academy of Sciences·DateApr 20, 2026

Compact and programmable large-scale optical processor in free space

Scientists have demonstrated a reconfigurable photonic circuit implementing wide class of complex unitary transformations via optical manipulation at three layers only. The platform enables flexible access to many co-propagating structured modes, making it suitable for applications in communication, information processing, and simulation.

New research approach improves the flavor stability of flaxseed oil and extends its shelf life

A new study removes bitter-tasting compounds from flaxseed oil, preserving its health-beneficial fatty acids and extending its shelf life. The approach uses bleaching earth to selectively reduce cyclolinopeptides, resulting in a flavor-stable oil that remains milder for longer.

SourceLeibniz-Institut für Lebensmittel-Systembiologie an der TU München·JournalApplied Food Research·TypeExperimental study·DateApr 20, 2026

Squeezing a Kondo ferromagnet reveals superconductivity beyond a magnetic quantum critical point

A team of scientists has found that applying pressure to the heavy-fermion ferromagnet Ce5CoGe2 reveals superconductivity above a magnetic quantum critical point, defying typical expectations. The unusual phase diagram suggests that other ingredients beyond magnetic fluctuations may drive superconductivity in this material.

SourceScience China Press·JournalNational Science Review·TypeExperimental study·DateApr 20, 2026

AACR: New platform uses machine learning to predict responses in patients with lung cancer

Researchers developed an AI model called Path-IO that uses machine learning to predict responses to immunotherapy for patients with metastatic non-small cell lung cancer. The model accurately stratified patients into high-risk and low-risk groups, with patients in the high-risk group having double the risk of death or disease progression.

Using a new online mental health tool just once boosts teenagers’ hope and emotional wellbeing

A digital single-session intervention (SSI) has been shown to meaningfully improve young people's sense of hope and control over their lives. The tool provides short, accessible and evidence-based psychological support and wellbeing activities, increasing feelings of hope and self-agency while reducing feelings of being out of control.

SourceUniversity of Bath·JournalClinical Child Psychology and Psychiatry·TypeExperimental study·DateApr 20, 2026

Emoji’s have feelings too, new study reveals

A new study by Bournemouth University found that the brain reacts to emojis in a way similar to seeing real human faces, with neural responses occurring within 145-160 milliseconds. This suggests that emojis can be processed by the brain as meaningful emotional signals during online interaction.

SourceBournemouth University·JournalPsychophysiology·TypeRandomized controlled/clinical trial·DateApr 20, 2026

Understanding the diverse chemokine signals in tumor microenvironment for advanced immunotherapy

Chemokines regulate immune cell infiltration and local immunity in tumors, and targeting their receptor axis has emerged as a promising therapeutic target in cancer immunotherapy. Chemokine-modulating strategies combining with other immunotherapies have demonstrated considerable synergistic potential.

SourceChinese Medical Journals Publishing House Co., Ltd.·JournalChinese Medical Journal·TypeLiterature review·DateApr 20, 2026

New publication about the influence of Southern Hemisphere waters on the Indonesian Throughflow

A new study finds that water masses from the Southern Hemisphere have been a major contributor to the Indonesian Throughflow for over 800,000 years. The researchers measured nitrogen isotopes in sediment cores and found a remarkable long-term stability of the nitrogen cycle along the equatorial Pacific.

Cocaine pollution alters salmon behaviour in the wild

A recent study by researchers at Griffith University and others found that exposure to cocaine contamination altered the movement patterns of Atlantic salmon in Lake Vättern, Sweden. Fish exposed to benzoylecgonine swam up to 1.9 times farther than unexposed fish, with dispersal distances reaching up to 12.3km.

SourceGriffith University·JournalCurrent Biology·DateApr 20, 2026

How neurons sense bacteria in the gut

Researchers identify specific chemicals that trigger neural activity in nematodes when they detect certain bacteria, leading to changes in feeding behavior and avoiding harmful pathogens. The study sheds light on fundamental mechanisms of how neurons interact with bacteria, paving the way for potential therapeutic interventions.

SourcePicower Institute at MIT·JournalCurrent Biology·DateApr 20, 2026

JMIR report: Can AI and wearables fix the "broken" pain scale?

The article discusses how emerging digital tools are capturing the biopsychosocial reality of chronic pain. Digital tools such as wearables, AI-driven trackers, and ecological momentary assessments mitigate recall bias by recording data in real-time, providing a more holistic picture of the patient's journey.

SourceJMIR Publications·JournalJournal of Medical Internet Research·TypeCommentary/editorial·DateApr 20, 2026

Having more kids associated with reduced risk of stroke and brain damage, research co-led by UT Health San Antonio shows

A new study co-led by UT Health San Antonio found that having three or more live births is associated with a reduced risk of stroke and brain damage in women. The research suggests that reproductive factors, such as the number of live births, may be an important predictive factor in assessing stroke risk in women.

SourceThe University of Texas at San Antonio Health Science Center·JournalJournal of the American Heart Association·TypeData/statistical analysis·DateApr 20, 2026

Heavy drinking, alcohol use disorder, and obesity

A nationally representative study found nearly 1 in 10 U.S. adults with heavy drinking and obesity conditions, highlighting the need for preventive efforts in younger and middle-aged adults without insurance or Medicaid coverage to curb rising rates of alcohol-associated liver disease deaths.

SourceJAMA Network·JournalJAMA Internal Medicine·DateApr 20, 2026

Prepregnancy care and counseling

Primary care-based discussions on reproductive goals, immunizations, and risk-reducing interventions optimize pregnancy outcomes. Prepregnancy counseling reduces maternal morbidity and mortality, while also promoting healthy fetal development.

SourceJAMA Network·JournalJAMA·DateApr 20, 2026

NUS CDE researchers develop biowaste coatings to boost CO2-to-fuel conversion

Researchers at NUS CDE have developed biowaste coatings that improve the conversion of carbon dioxide into useful fuels and chemicals, achieving high selectivity rates and reducing reliance on PFAS. The coatings, made from crustacean shells, insect exoskeletons, and plant matter, offer a cost-effective pathway to climate technology.

SourceNational University of Singapore College of Design and Engineering·JournalNature Energy·TypeExperimental study·DateApr 20, 2026

How resilient fungus might survive Mars and space

A study published in Applied and Environmental Microbiology suggests that a fungus strain called Aspergillus calidoustus can survive the harsh conditions of space travel and Martian environments. The fungus was found to tolerate extreme temperatures, radiation, and pressure, making it a strong candidate for surviving the trip to Mars.

SourceAmerican Society for Microbiology·JournalApplied and Environmental Microbiology·DateApr 20, 2026

European Immunization Week 2026, For every generation, vaccines work: three countries reach 90% HPV vaccination target as Europe steps up action on cancer prevention

Three European countries reach 90% HPV vaccination coverage among girls by age 15, marking progress in cervical cancer prevention. HPV vaccination programmes show significant reductions in infections and precancerous lesions, with early administration increasing full protective potential.

Real-time analysis of performance degradation in water electrolysis

A research team developed a two-electrode-based real-time diagnostic technology capable of precisely analyzing the causes of performance degradation in anion exchange membrane water electrolysis (AEMWE) systems under actual operating conditions. The study reveals that voltage increase in water electrolysis systems arises not only from ...

Primary breast tumors already harbor cells with metastatic potential

Researchers have identified the Prrx1 gene as a key regulator of metastatic potential in breast cancer tumors. This discovery helps explain why highly invasive cells do not always give rise to metastases, and how cells combine invasiveness and proliferation to become the most dangerous from a clinical perspective.

SourceUniversidad Miguel Hernandez de Elche·JournalNature Communications·TypeExperimental study·DateApr 20, 2026

The naming of mollusks evolves at a snail's pace

Research by Taro Yoshimura examines the history and linguistic landscape of biodiversity, finding that ancient Greek dominates molluscan family names, often due to prestige and style. This highlights a human side to naming, where science is shaped by epistemic values and cultural biases.

SourceUniversity of Tokyo·JournalZoological Journal of the Linnean Society·TypeLiterature review·DateApr 20, 2026

Study suggests link between prenatal exposure to certain medications and increased autism risk

A landmark study found a significant association between prenatal prescription of sterol biosynthesis-inhibiting medications and the risk of autism spectrum disorder (ASD) in children. The research identified commonly prescribed medications as potential contributors to neurodevelopmental vulnerability.

SourceUniversity of Nebraska Medical Center·JournalMolecular Psychiatry·TypeData/statistical analysis·DateApr 20, 2026

CiQUS team develops prototype thermal memory: Voltage-controlled heat flow

Researchers from CiQUS introduce a prototype thermal memory device capable of switching between high and low thermal conductivity states through electrical stimuli. The device relies on ultra-thin ferroelectric films with precise regulation of thermal conductivity, enabling stable and non-volatile thermal states.

Self-assembling luminophores form nanotubes with multidirectional exciton transport transport

A team of scientists has developed a new method to assemble luminescent molecules into nanotubes with unusual excitonic properties. The nanotubes can be arranged to form luminescent fibers that reach several centimeters in length, and exhibit multidirectional energy transfer within their interiors.

SourceChiba University·JournalJournal of the American Chemical Society·TypeExperimental study·DateApr 20, 2026

Can exercise and ibuprofen lessen cancer-related cognitive impairment?

A Phase II trial found that exercise can improve cognitive function in patients receiving chemotherapy, while low-dose ibuprofen may also have some benefits. The study suggests that exercise is more effective in improving cognitive outcomes, but further research is needed to explore the effects of ibuprofen and combination therapy.

SourceWiley·JournalCancer·DateApr 20, 2026

Arsenic trisulfide (As2S3): A “photosensitive clay” for nano-optics, shaped by a simple laser

Researchers have discovered a novel optical material, arsenic trisulfide (As2S3), that can be permanently modified by light and sculpted at the nanoscale level. This material exhibits an unusually large light-induced refractive-index change, enabling the creation of extremely fine optical fingerprints.

SourceXPANCEO Research on Natural Science LLC·JournalProceedings of the National Academy of Sciences·DateApr 20, 2026

Promoting communication in English among students learning English as a foreign language

A recent study by Doshisha University found that a supportive classroom environment boosts students' willingness to communicate in English, promoting language learning and motivation. The study applied self-determination theory principles to analyze the factors influencing Japanese university students' communication willingness, highli...

SourceDoshisha University·JournalBritish Journal of Educational Psychology·TypeSurvey·DateApr 20, 2026

To thwart pathogens, researchers are giving beneficial microbes what they really want

Researchers have developed a new tool called Microbial Interaction and Niche Determination (MIND) that accurately predicts how microbes compete within complex communities. By analyzing nutrient preferences and energy allocation, MIND helps beneficial organisms outcompete dangerous pathogens. This approach has the potential to accelerat...

SourceUniversity of California - San Diego·JournalCell·TypeExperimental study·DateApr 20, 2026