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Science News for November 25, 2019


Fish size affects Snake River salmon returns more than route through dams

New research suggests that fish size, not bypass system route, affects Snake River salmon returns. Larger fish survive at a higher rate in the ocean and as adults in rivers. The study found little evidence of delayed mortality once fish reach estuaries and oceans.

SourceNOAA Fisheries West Coast Region·JournalTransactions of the American Fisheries Society·DateNov 25, 2019

Researchers report first recording of a blue whale's heart rate

Researchers from Stanford University successfully recorded a blue whale's heart rate for the first time using an electronic sensor attached to the whale's flipper. The data suggests that the whale's heart is operating at its limit, which may explain why blue whales have never evolved to be bigger.

SourceStanford University·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Honey bee declines in cultivated landscapes

A study tracked honey bee nutrition and colony growth in Iowa's intensely farmed state. Colonies near soybean fields experienced short-term gains but failed to support long-term health due to lack of floral resources.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

The nature of salmonella is changing -- and it's meaner

A Michigan State University study finds that antibiotic-resistant salmonella strains are increasing, leading to longer hospital stays and worse symptoms. The study also reveals regional differences in the types of salmonella infections, with rural areas affected by enteritis infections.

SourceMichigan State University·JournalFrontiers in Medicine·DateNov 25, 2019

Concussions in high school athletes may be a risk factor for suicide

Research at University of Texas Health Science Center links concussions in high school students to depression and suicidal thoughts. The study reveals teenage males with concussion history are twice as likely to attempt suicide, while females have greater odds of reporting suicidal ideations.

SourceUniversity of Texas Health Science Center at Houston·JournalJournal of Affective Disorders·DateNov 25, 2019
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

A study compares how water is managed in Spain, California and Australia

A research project at the University of Córdoba and the University of Zaragoza analyzed legislative changes in water management in Spain, California, and the Murray Darling Basin in Australia. The study shows that despite similarities in agriculture and water scarcity, these regions have distinct approaches to managing their watersheds.

SourceUniversity of Córdoba·JournalGlobal Environmental Change·DateNov 25, 2019

New research training group on the self-organization of soft matter

A new research training group funded by the German Research Foundation will investigate the role of interfaces in synthesizing soft advanced materials and manipulating their properties. The group aims to better understand self-organization processes in the presence of interfaces.

SourceJohannes Gutenberg Universitaet Mainz·DateNov 25, 2019

Wearable sweat sensor detects gout-causing compounds

Researchers developed a mass-producible wearable sensor that can monitor levels of metabolites and nutrients in blood by analyzing sweat. The device is more sensitive than current devices, detecting lower concentrations of compounds like uric acid and tyrosine, which are associated with gout, diabetes, and cardiovascular diseases.

SourceCalifornia Institute of Technology·JournalNature Biotechnology·DateNov 25, 2019
Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

The heat is on

An international team of scientists analyzed 3 million species records from 200 ecological communities worldwide to reveal the impact of ocean warming on fish communities. The study found that subtle changes in species movement in response to rising temperatures made a significant impact on the global picture.

SourceUniversity of California - Santa Barbara·JournalNature Climate Change·DateNov 25, 2019

Neuroscientists develop models to identify internal states of the brain

Researchers at Princeton University have developed models to identify internal states of the brain in fruit flies. By analyzing song patterns and behavioral changes, they discovered three distinct strategies - Close, Chasing, and Whatever - linked to specific neurons controlling these shifts.

SourcePrinceton University·JournalNature Neuroscience·DateNov 25, 2019

Examining work schedules of hospitalists, patient outcomes

An observational study found that hospitalists who worked irregular schedules, such as non-consecutive days, had better patient outcomes compared to those working consecutive days. The study suggests that varying work schedules may lead to improved patient care and outcomes.

SourceJAMA Network·JournalJAMA Internal Medicine·DateNov 25, 2019

Cellular origins of pediatric brain tumors identified

A research team discovered that several types of highly aggressive and fatal pediatric brain tumors originate from stalled development of progenitor cells in the pons and forebrain. The cells' progress is arrested, and they transform into malignancies while retaining features of the original cells.

SourceMcGill University·JournalNature Genetics·DateNov 25, 2019
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Prostate cancer: radiation therapy effective in patients with no further treatment options

A new radiation therapy regimen combining lutetium-177 and actinium-225 has been shown to stabilize tumour growth and improve survival rates for patients with late-stage prostate cancer. The study demonstrated significant reductions in side effects, including dry mouth, compared to previous radionuclide therapies.

SourceSaarland University·JournalEuropean Journal of Nuclear Medicine and Molecular Imaging·DateNov 25, 2019

Breakthrough in understanding common childhood cancer

A study led by Newcastle University has identified circulating neuroblastoma tumour cells in the blood and bone marrow, providing new insights into the disease's progression. The discovery could enable non-invasive testing of targeted treatments and improve patient outcomes.

SourceNewcastle University·JournalClinical Cancer Research·DateNov 25, 2019

Fossils reveal swimming patterns of long extinct cephalopod

Researchers used computational fluid dynamics to analyze the swimming patterns of extinct ammonoid cephalopods, which lived over 300 million years ago. The study reveals insights into the stability of marine ecosystems and how they recover diversity after drastic extinctions.

SourceAmerican Physical Society·DateNov 25, 2019

Downstream signaling: Cilia release ectosomes to deliver important messages in the kidney

Researchers at MUSC found that primary cilia generate approximately 60% of small EVs produced by renal tubule cells, with manipulation of cilium length affecting EV production. The protein content of EVs varies depending on cilia length, suggesting a significant role for cilia in intercellular communication.

SourceMedical University of South Carolina·JournalJournal of Biological Chemistry·DateNov 25, 2019
Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Study tracks genomic changes that reinforce darter speciation

Researchers tracked genomic changes in hybrid orangethroat and rainbow darters, finding regions with genetic divergence contributing to reproductive incompatibility. These differences likely disrupt cell division and alter gene expression, driving the evolution of distinct traits.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalMolecular Biology and Evolution·DateNov 25, 2019

Sexualization, income inequality, and status anxiety

A role-playing experiment involving over 300 women from multiple countries suggests that female self-sexualization is linked to income inequality and social status anxiety. The study supports the hypothesis that social climbing and status competition drive sexualization among women.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Discovery increases chance of improving iron content in plants

Researchers have identified a key regulator in iron uptake in plants, which controls hundreds of genes and has the potential to increase iron potency in crops like rice and wheat. The study's findings could provide a solution to iron deficiency affecting over 2 billion people globally.

SourceDartmouth College·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Study finds increase in pediatric eye injuries from nonpowder firearms

A new study found an increasing rate of eye injuries related to nonpowder firearms among children, with BB guns accounting for most of the injuries. The study highlights the need for protective eyewear and stricter safety legislation to prevent preventable and serious injuries.

SourceNationwide Children's Hospital·JournalPEDIATRICS·DateNov 25, 2019
Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

NASA tracking Extra-Tropical Storm Sebastien towards the UK

Extra-Tropical Storm Sebastien has transitioned from a tropical storm, coupling with a cold front and headed for the United Kingdom. The storm is forecast to affect southern England, with potential for heavy rain and flooding over the next several days.

SourceNASA/Goddard Space Flight Center·DateNov 25, 2019

Fluid dynamics taught through dance

Researchers used dance to convey the principles of fluid mechanics by creating a 'physics-constrained improvisation.' The goal is to produce an educational video that demonstrates flow past a cylinder at varying Reynolds numbers.

SourceAmerican Physical Society·DateNov 25, 2019

Injection of magnetizable fluid could extend trauma patients' survival time

Scientists are testing a magnetically-actuated fluidic valve to reduce bleeding in trauma patients. The system uses an injectable magnetorheological suspension and externally placed magnets to create an obstruction, halting blood loss and stabilizing blood pressure. This could potentially extend survival time by at least 30 minutes.

SourceAmerican Physical Society·DateNov 25, 2019

All the feels

Researchers found that people experiencing higher felt love had significantly higher levels of psychological well-being and extraversion personality scores. They also developed a method to analyze noisy data using Bayesian latent stochastic differential equations model.

SourcePenn State·JournalPersonality and Individual Differences·DateNov 25, 2019

The 'Signal Cell' relaying microbiota signals discovered

Researchers at Pohang University of Science & Technology discovered a mechanism by which microbiota signals are transmitted to the entire body, controlling hematopoiesis in the bone marrow. This process involves CX3CR1+ mononuclear cells recognizing microbiota signals and releasing cytokines that stimulate the immune system.

SourcePohang University of Science & Technology (POSTECH)·JournalBlood·DateNov 25, 2019
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Are toddlers meeting screen-time guidelines?

A recent study found that most 2- and 3-year-old children fail to meet recommended daily screen time limits. Maternal screen time and home care were associated factors for non-compliance at younger ages, while only maternal screen time was significant at 3 years old.

SourceJAMA Network·JournalJAMA Pediatrics·DateNov 25, 2019

How diversity of respiratory quinones affects microbial physiology

Researchers discovered a fear-greed tradeoff in bacteria that use ancient respiratory quinones for aerobic respiration, leading to oxidative stress and growth limitations. The study provides fundamental insights into microbial bioenergetics evolution and potential strategies for modulating bacterial growth and survival.

SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

16-million-year-old fossil shows springtails hitchhiking on winged termite

Researchers discovered 25 springtails attached to a large winged termite and ant in 16-million-year-old amber from the Dominican Republic, showing a new type of hitchhiking behavior among soil-dwelling arthropods. This discovery highlights how symphypleonan springtails successfully achieved dispersal worldwide.

SourceNew Jersey Institute of Technology·JournalBMC Evolutionary Biology·DateNov 25, 2019
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Intergenerational mobility in the United States

Intergenerational occupational mobility in the US has declined since 1850, with relative decline in status of many occupations. Only a few high-status occupations retained stable percentile ranks, while recent generations face reduced upward mobility.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Using artificial intelligence to analyze placentas

A team of researchers has developed an AI-powered system that can analyze placentas using computerized photographic image analysis, potentially improving health outcomes for mothers and babies. The system uses artificial intelligence to detect features linked to abnormalities and potential health risks.

SourcePenn State·DateNov 25, 2019

Scientists suggest new solution to the rare-disease problem

Researchers estimate that 10% of the world's population suffers from a rare disease, yet accurate diagnosis remains challenging due to lack of standard definitions. A new commentary proposes a coordinated effort to define rare diseases, which could lead to better diagnosis and treatment for millions affected.

SourceOregon Health & Science University·JournalNature Reviews Drug Discovery·DateNov 25, 2019

Geriatricians, internists, and cardiologists surveyed about deprescribing

A survey of geriatricians, general internists, and cardiologists found that over 80% had recently considered deprescribing a cardiovascular medication due to adverse drug reactions. Barriers to deprescribing include concerns about patient reluctance and interfering with other physicians' treatment plans.

SourceAmerican Geriatrics Society·JournalJournal of the American Geriatrics Society·DateNov 25, 2019
Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Climate change is reshaping communities of ocean organisms

A study published in Nature Climate Change found that climate change is altering the mix of species in oceans, with warm-water species rapidly increasing and cold-water marine species decreasing. This shift can disrupt fisheries and ocean food chains.

SourceRutgers University·JournalNature Climate Change·DateNov 25, 2019

Flour power: How shoppers choose which bread to buy

Researchers found that brand is the biggest influence on bread buying behavior, followed by type of wheat and value considerations. Only 1% of surveyed consumers regularly purchase gluten-free bread due to perceived lack of value.

SourceUniversity of Technology Sydney·JournalJournal of Marketing Research·DateNov 25, 2019

Rapamycin may slow skin aging, Drexel study reports

A Drexel University study found that rapamycin cream can reduce wrinkles, sagging, and improve skin tone in human subjects over 40. The drug blocks the TOR protein and has anti-aging effects by reducing senescent cells associated with skin aging.

SourceDrexel University·JournalGeroScience·DateNov 25, 2019

Cannabis reduces headache and migraine pain by nearly half

A recent study published in the Journal of Pain found that inhaled cannabis reduces self-reported headache severity by 47.3% and migraine severity by 49.6%. The study analyzed archival data from over 1,300 patients who used medical cannabis to track changes in their symptoms before and after use.

SourceWashington State University·JournalJournal of Pain·DateNov 25, 2019
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Unravelling the venomous bite of an endangered mammal

The study identifies the proteins that make up the venom of the Hispaniolan solenodon, a rare and endangered species. The research reveals that these toxins are likely used to cause drops in blood pressure in vertebrate prey, and have evolved independently on at least four occasions in eulipotyphlan mammals.

SourceLiverpool School of Tropical Medicine·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Tendon stem cells could revolutionize injury recovery

Researchers discovered tendon stem cells that can improve tendon healing and potentially avoid surgery. These stem cells compete with scar tissue precursors, suggesting a therapeutic approach to prevent fibrous scarring.

SourceCarnegie Institution for Science·JournalNature Cell Biology·DateNov 25, 2019

Ammonia synthesis made easy with 2D catalyst

Rice University scientists create inorganic catalyst from molybdenum disulfide that mimics natural bacterial process to produce ammonia on demand under ambient conditions. The method uses electricity and can be used for small-scale production or even in space applications.

SourceRice University·JournalJournal of the American Chemical Society·DateNov 25, 2019
Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Study reframes the history of LGBT mental health care

A study on the Eromin Center, one of the first LGBT counseling centers in the US, highlights the importance of clinical activism and community-based practice in providing support for LGBT people. The center's approach, which focused on self-acceptance and personal strengths, has had a lasting impact on the field of mental health care.

SourceCornell University·JournalAmerican Psychologist·DateNov 25, 2019

Planets around a black hole?

According to latest theories, planets could be formed even in harsh environments around a black hole, with tens of thousands of Earth-like planets possible within 10 light-years of a massive black hole. This finding opens up new possibilities for astronomy and challenges current understanding of planet formation.

SourceNational Institutes of Natural Sciences·DateNov 25, 2019
CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Prayers can crowd out donations for disaster victims

A recent study found that people who pray before donating tend to give less than they would have otherwise. However, simply thinking about the victims had no significant effect on donation levels. The research suggests that prayers can act as a substitute for material help in some contexts.

SourceUniversity of Wyoming·JournalJournal of Risk and Uncertainty·DateNov 25, 2019

New flu drug drives drug resistance in influenza viruses

A study by University of Wisconsin-Madison researchers found that a new flu drug, baloxavir, can drive drug resistance in H3N2 and H1N1 influenza viruses. The mutation occurred in nearly 23% of patients treated with the medication, but did not appear to affect its effectiveness against other virus-fighting drugs.

SourceUniversity of Wisconsin-Madison·JournalNature Microbiology·DateNov 25, 2019

Forest responses to climate change

A study simulates forest responses to projected climate changes using a model of plant physiology. Acclimation allows trees to adjust leaf area, photosynthetic capacity, and stand density to avoid stress, but its effectiveness varies with warming levels.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Forest farms could create market for ginseng, other herbs

Researchers suggest forest farming as a solution to unsustainable wild collection of medicinal plants, which can lead to overharvesting and loss of ecosystems. Forest farming promotes better quality products, stable income for farmers, and increased transparency in the supply chain.

SourcePenn State·DateNov 25, 2019

Ultrafast quantum simulations: A new twist to an old approach

Researchers have developed a new way to simulate quantum systems of many particles, allowing for the investigation of dynamic properties fully coupled to slowly moving ions. This approach overcomes limitations in previous methods and offers new insights into complex mutual interactions between particles in extreme environments.

SourceUniversity of Warwick·JournalScience Advances·DateNov 25, 2019

Industry executives: Profits drive rising prices for MS drugs

A study found that MS drug prices are increasing due to profit-driven business models, with executives citing the US market as a key factor. The researchers noted that prices in the US continue to rise despite decreased production costs.

SourceOregon Health & Science University·JournalNeurology·DateNov 25, 2019

Thermal cameras effective in detecting rheumatoid arthritis

Researchers used thermal imaging to assess rheumatoid arthritis, finding increased palm and finger temperatures in patients. The study suggests thermal imaging could aid in early detection of the disease, which affects over 400,000 adults in the UK.

SourceStaffordshire University·JournalScientific Reports·DateNov 25, 2019
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Scientists develop electrochemical platform for cell-free synthetic biology

Researchers have created a biohybrid system that combines gene circuits with electrodes to detect specific nucleic acid sequences. This approach enables parallel detection of multiple pathogens and has the potential to transform medicine, biotech, academic research, food safety, and other applications.

SourceUniversity of Toronto - Leslie Dan Faculty of Pharmacy·JournalNature Chemistry·DateNov 25, 2019

Aquatic microorganisms offer important window on the history of life

Researchers have developed a new technique to study flagellate organisms, tiny eukaryotic creatures that provide clues about the emergence of complex life on Earth. By analyzing mitochondrial DNA and exploiting unique protein structures, scientists can fill in the gaps of the eukaryotic puzzle and better understand the history of life.

SourceArizona State University·DateNov 25, 2019
Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Improved ethanol-to-hydrocarbon conversion

Researchers have developed a one-step conversion process that reduces ethanol-to-hydrocarbon conversion costs by 12-fold. This innovation enables the production of biofuels suitable for various applications, including blending with gasoline or jet fuel.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

One third of UK doctors may suffer from workplace 'burnout'

A UK study of over 3,000 doctors reveals that 36% experience burnout, leading to suicidal thoughts, depression, and anxiety. The research highlights the need for improved workplace environments, compassionate leadership, and support systems to prevent burnout and improve patient care.

SourceImperial College London·JournalBMJ Open·DateNov 25, 2019

Living at the edge of an active volcano: Risk from lava flows on Mount Etna

A new study assesses the lava flow risk on Mt. Etna's flanks, highlighting high-risk areas near populated regions and critical infrastructure. The researchers used a GIS-based approach to map hazard, exposure, and risk, revealing that effusive eruptions could harm people, properties, and services.

SourceGeological Society of America·JournalGeological Society of America Bulletin·DateNov 25, 2019
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

A monkey's balancing act

A study reveals that endangered monkey species in national parks make calculated decisions to balance risks and rewards of sharing space with humans. The research highlights the negative impact of human food consumption on their physical health and the need for sustainable conservation programmes to save declining species.

SourceUniversity of Lincoln·JournalAnimal Conservation·DateNov 25, 2019

Why women select college majors with lower earnings potential

A study by Ohio State University sociologist Natasha Quadlin found that women tend to choose college majors with lower earning potential than men, even when both prioritize economic returns. Women often opt for majors in fields perceived as more open and available to them.

SourceOhio State University·JournalSociology of Education·DateNov 25, 2019

Circulation and feeding in blue whales

During diving, blue whales exhibit extreme bradycardia, with heart rates as low as 2 beats per minute. This contrasts with their normal resting heart rate of 15 beats per minute, highlighting the circulatory system's adaptability to accommodate deep dives.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

New research identifies neurodevelopment-related gene deficiency

Scientists at Case Western Reserve University have identified a critical role for the Cullin 3 gene in brain development, contributing to autism spectrum disorders (ASD) and schizophrenia. The discovery sheds light on the mechanisms underlying these complex conditions, potentially paving the way for new treatments.

SourceCase Western Reserve University·JournalNeuron·DateNov 25, 2019
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Income inequality fuels status anxiety and sexualisation, research shows

Women's appearance enhancement is driven by status anxiety and income inequality, according to research. In economically unequal societies, participants chose more revealing outfits due to social status anxiety, using attractiveness as a strategy to climb the social hierarchy.

SourceUniversity of Melbourne·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Smoker-survivor genes may have long ancestral history of fighting toxins

A study suggests that immunity-related genes from ancient times may be protecting humans today against modern pollutants like cigarette smoke and diesel fumes. Researchers found that certain genes, such as AHR, have been beneficial in responding to airborne toxins for thousands of years.

SourceUniversity of Chicago Press Journals·JournalThe Quarterly Review of Biology·DateNov 25, 2019

How mantis shrimp make sense of the world

Researchers found a 'kidney-shaped' brain region that processes and integrates visual information with other sensory inputs. This discovery sheds new light on how mantis shrimp make sense of their breathtaking visual input.

SourceUniversity of Arizona·JournalJournal of Comparative Neurology·DateNov 25, 2019
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Reconstructing source of radioactive ruthenium

A study reconstructs the source of radioactive ruthenium detected over Europe in 2017, identifying the southern Ural Mountains in Russia and the Mayak Production Association facility as the likely source. The authors estimated that approximately 250 TBq of radioactivity was released, with most of it occurring on September 26, 2017.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Approaching the perception of touch in the brain

Researchers identified key brain areas linked to limited sense of touch, including somatosensory cortex and prefrontal cortex. The study supports findings from previous research on body awareness and discovers new brain regions associated with touch perception.

SourceMax Planck Institute for Human Cognitive and Brain Sciences·JournalNature·DateNov 25, 2019

Forests face climate change tug of war

The study reveals that the winner of the climate tug of war between CO2 fertilization and heat stress depends on the ratio between the two. If forests can acclimate, they can tolerate a lower ratio, but if not, it's above 89 parts per million CO2 per degree C of warming. Other factors like forest fires, insect infestation, and exceptio...

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Low-frequency sound may predict tornado formation

Researchers from Oklahoma State University and University of Nebraska-Lincoln have discovered that low-frequency sounds are emitted before tornado formation. These infrasound signals can be detected hours or even days in advance, providing potential warnings for severe weather events.

SourceAmerican Physical Society·DateNov 25, 2019
Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Study suggests women may be undertreated for obstructive sleep apnea

A recent study found that almost 60% of older men and women experienced sleep apnea during dream sleep, which is associated with adverse cardiovascular outcomes. Women were more likely to be undertreated for sleep apnea due to lower sensitivity to changes in ventilation and less airway collapsibility.

SourceBrigham and Women's Hospital·JournalSLEEP·DateNov 25, 2019

Locking up fats in CAGEs to reduce obesity

Researchers discovered that an orally administered liquid salt called Choline and Geranate (CAGE) can physically reduce fat absorption and slow down weight gain in rats. CAGE prevents fats from being absorbed into the bloodstream, leading to a significant reduction in body weight.

SourceWyss Institute for Biologically Inspired Engineering at Harvard·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Light-trapping nanocubes drive inexpensive multispectral camera

Researchers at Duke University have demonstrated a new type of broad-spectrum photodetector that can capture a multispectral image in a few trillionths of a second. The technology uses plasmonic nanocubes to trap specific frequencies of light, allowing for fast and efficient detection of different wavelengths.

SourceDuke University·JournalNature Materials·DateNov 25, 2019

Study paves way to better understanding, treatment of arthritis

A new study by Oregon State University has provided a comprehensive, cellular-level understanding of osteoarthritis, enabling better treatment options. The research uses a sophisticated scanning technique to view loaded joints in arthritic and healthy mice, revealing key features such as tissue mechanics and cellular activity.

SourceOregon State University·JournalNature Biomedical Engineering·DateNov 25, 2019

Liquid-liquid transitions crystallize new ideas for molecular liquids

Researchers have discovered a significant coupling between crystallization and liquid-liquid transition (LLT) in molecular liquids, leading to drastic enhancements of crystal formation. This finding has implications for understanding and controlling crystallization in various fields, including materials science and disease research.

SourceInstitute of Industrial Science, The University of Tokyo·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Potent antimicrobial found that shows promise in fighting staph infections

Researchers at McMaster University have discovered a potent new antimicrobial that works against the toughest infectious disease strains, including MRSA. The compound, MAC-545496, cripples MRSA's ability to cause infection by diminishing its tolerance to the immune system and blocking its resistance to antibiotics.

SourceMcMaster University·JournalNature Chemical Biology·DateNov 25, 2019

Ionic liquid treatment for obesity

Rats fed a high-fat diet showed 12% less body weight gain after ingesting an ionic liquid containing choline and geranate once daily for 30 days. The treatment also decreased food intake and intestinal fat uptake by 60-70%.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

New hospital tech disrupts doctors' and nurses' jobs, forces improvisation to ensure patient safety

The introduction of electronic patient records in a Saudi Arabian hospital led to changes in the division of labor between physicians and nursing staff. As a result, staff had to improvise their actions to ensure continued patient safety, often requiring complex renegotiations to re-establish professional boundaries.

SourceLancaster University·JournalJournal of Information Technology·DateNov 25, 2019

Prenatal opioid exposure may alter brain function in babies

A new study using fMRI found significant differences in brain connectivity between infants exposed to opioids prenatally and those not exposed. The research suggests that prenatal opioid exposure may have lasting consequences on brain development and behavior.

SourceRadiological Society of North America·DateNov 25, 2019
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

How our dreams prepare us to face our fears

Scientists identify brain areas activated during frightening dreams, including the insula and cingulate cortex, which improve emotional regulation upon waking. They found a link between fear in dreams and emotions experienced once awake.

SourceUniversité de Genève·JournalHuman Brain Mapping·DateNov 25, 2019

Wastewater leak in West Texas revealed

A study by Southern Methodist University geophysicists has found evidence of a leak in a West Texas wastewater disposal well between 2007 and 2011. The leak could have contaminated the Rustler Aquifer, used for irrigation and livestock but not drinking water.

SourceSouthern Methodist University·JournalScientific Reports·DateNov 25, 2019
Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Dinosaur skull turns paleontology assumptions on their head

Researchers have found a well-preserved Styracosaurus skull with asymmetrical horns, challenging traditional identification methods. The discovery reveals morphological variability in dinosaur skulls, leading to reevaluation of previously assumed species.

SourceUniversity of Alberta·JournalCretaceous Research·DateNov 25, 2019

Carbon soccer ball with extra proton probably most abundant form in space

Researchers at Radboud University have successfully measured the absorption spectrum of C60H+, a carbon molecule with an extra proton. This finding suggests that C60H+ is probably the most abundant form of carbon in interstellar clouds, which could provide insights into the formation of planets and our own solar system.

SourceRadboud University Nijmegen·JournalNature Astronomy·DateNov 25, 2019

Paleoclimate of the Middle East

A study analyzing carbonate minerals in Soreq Cave, Israel, suggests the summer monsoon periodically impacted the region during the last interglacial period. The findings coincide with archaeological evidence of human migration out of Africa, implying paleoclimate may have influenced early human movement.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019
Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Babies in the womb may see more than we thought

Scientists at the University of California, Berkeley have found evidence that light-sensitive cells in the developing retina are networked and play a more significant role in brain development than previously thought. The discovery suggests that these cells may enhance the influence of light on behavior and brain development.

SourceUniversity of California - Berkeley·JournalCurrent Biology·DateNov 25, 2019

Consistent gene changes in Alzheimer's disease across studies

A study analyzing data from four types of mouse Alzheimer's models found consistent changes in cell number and gene expression throughout the disease stages. The research provides new targets for intervention and therapy, highlighting the immune system's involvement in early stages of Alzheimer's.

SourceSociety for Neuroscience·JournaleNeuro·DateNov 25, 2019

Toxicity of crumb rubber from artificial turf

Researchers exposed chicken embryos to pollutants in crumb rubber, leading to mass loss and developmental issues, as well as gene dysregulation. The findings suggest a need to reassess the potential toxicity of crumb rubber used in playgrounds and athletic fields.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Environmental enrichment corrects errors in brain development

Research in mice found that environmental enrichment can partially correct mis-mapped neurons in the visual pathway, leading to vision issues in adulthood. Mice raised in enriched environments showed less mapping errors than those in standard cages.

SourceSociety for Neuroscience·JournaleNeuro·DateNov 25, 2019

Screen time patterns of kids

A study analyzed nearly 3,900 children's screen time use and its association with parental education levels and child sex. The findings highlight the importance of considering sociodemographic characteristics when examining screen time patterns.

SourceJAMA Network·JournalJAMA Pediatrics·DateNov 25, 2019

Newly discovered immune cells contribute to toxic shock

MAIT cells play a key role in group A streptococcal toxic shock, producing large amounts of cytokines that cause over-reaction. The discovery has potential implications for diagnosis and treatment of life-threatening conditions.

SourceKarolinska Institutet·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Russian influence on US Twitter users

Researchers analyzed tweets from 1,239 Republicans and Democrats to find no evidence that Russian trolls significantly influenced ideology or attitudes. The study suggests IRA accounts may not have polarized the US public due to interacting with highly polarized individuals.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Periodontal disease: Patent for new treatment method

Researchers at Martin-Luther-Universität Halle-Wittenberg have developed biodegradable rods containing an antibiotic to treat periodontal disease, reducing side effects and inflammation. The innovative treatment uses a combination of minocycline and magnesium stearate, releasing the antibiotic slowly and locally in the mouth.

SourceMartin-Luther-Universität Halle-Wittenberg·JournalInternational Journal of Pharmaceutics·DateNov 25, 2019

Gut microbes alter characteristics of norovirus infection

Researchers found that normal gut bacteria boost norovirus severity in the lower small intestine but block it in the upper small intestine. The study suggests manipulating the gut environment through bile acids or microbiome could stimulate the immune system to shut down norovirus infection.

SourceWashU Medicine·JournalNature Microbiology·DateNov 25, 2019

Coated seeds may enable agriculture on marginal lands

Researchers have developed coated seeds that can grow in salty soils by providing a protective coating and fertilizer-generating microbes. These seeds showed improved health and growth compared to untreated seeds in unproductive soil fields.

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Why cigarettes initially feel disgusting and how this could help smokers quit

Researchers at the University of Toronto have discovered the brain cells responsible for nicotine aversion in mice, paving the way for new treatments to help smokers quit. The study found that dopamine neurons signal reward and GABA neurons signal aversion in the ventral tegmental area.

SourceUniversity of Toronto·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Cellular origins of pediatric brain tumors identified

A research team identified that several types of highly aggressive pediatric brain tumors originate from stalled development of progenitor cells in the pons and forebrain. The findings represent a significant advance in understanding these diseases, which are the leading cause of cancer-related deaths in children.

SourceMcGill University·JournalNature Genetics·DateNov 25, 2019

Global health viewpoint: Poor data prevent accurate measurement of UN goals

A global health viewpoint emphasizes the need for accurate data to measure progress toward the United Nations Sustainable Development Goals. The lack of data in low- and middle-income countries, combined with inconsistent international standards, is hindering efforts to track progress.

SourceInstitute for Health Metrics and Evaluation·JournalThe Lancet Global Health·DateNov 25, 2019

Ocean deoxygenation and nitrogen cycle

Researchers discovered that lower dissolved oxygen levels trigger a shift in the marine nitrogen cycle, with ammonium replacing nitrate as the main fixed nitrogen component. This change indicates a significant biogeochemical vulnerability to ocean deoxygenation, potentially affecting nutrient availability.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Air pollution linked to higher glaucoma risk

A new UCL-led study found that living in a more polluted area is associated with a greater likelihood of having glaucoma, a debilitating eye condition that can cause blindness. People in areas with high levels of fine particulate matter pollution were 6% more likely to report having glaucoma than those in less-polluted areas.

SourceUniversity College London·JournalInvestigative Ophthalmology & Visual Science·DateNov 25, 2019

Cells study helping to crack the code to Alzheimer's disease

A Monash University study has made key discoveries into the role of gene expression in individual cell types of the brain, contributing to Alzheimer's disease. The research highlights the importance of understanding non-neuronal cells in treating this devastating condition.

SourceMonash University·JournalNature Neuroscience·DateNov 25, 2019

New study looks to biological enzymes as source of hydrogen fuel

Researchers have made breakthrough in recreating nature's efficient machinery for generating hydrogen gas using biological enzymes. The study focuses on iron-iron hydrogenase enzyme, which is faster and more efficient than current industrial process.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Konstanz-based CRC 969 to receive additional funding

The University of Konstanz's Collaborative Research Centre 969 will continue its research in cellular proteostasis with a new funding period starting January 2020. The centre will focus on studying complex processes and networks of proteostasis, developing new techniques to make these processes visible and controllable.

SourceUniversity of Konstanz·DateNov 25, 2019

New discovery in C. difficile biology could lead to treatments for dangerous infections

A new study published in Nature Microbiology has discovered that epigenetic chemical modifications play a crucial role in the survival and spread of C. difficile bacteria. The research found that inhibiting these modifications can reduce bacterial populations by up to 100 times, paving the way for potential treatments for this deadly i...

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalNature Microbiology·DateNov 25, 2019

High amounts of screen time begin as early as infancy, NIH study suggests

Children's daily screen time increased significantly from age 12 months to 3 years, with an average of 150 minutes per day at 3 years. Higher levels of parental education and being born to first-time mothers were associated with higher screen time.

SourceNIH/Eunice Kennedy Shriver National Institute of Child Health and Human Development·JournalJAMA Pediatrics·DateNov 25, 2019

Anchored by a dense neighborhood: What stops cells from going astray

Researchers at the National University of Singapore have found that cells can attach to the fibrous protein meshwork surrounding them only if the fibres are spaced close enough. This finding has implications for understanding abnormal motility patterns in cancer cells and could lead to the development of new therapeutic targets.

SourceNational University of Singapore·JournalNature Materials·DateNov 25, 2019

NASA spots first tropical cyclone of Southern Pacific season

Tropical Cyclone Rita formed on Nov. 24 as a tropical storm and was analyzed by NASA's Aqua satellite using infrared light for temperature data. MODIS found powerful thunderstorms circling its center with cold cloud top temperatures indicating strong storms.

SourceNASA/Goddard Space Flight Center·DateNov 25, 2019

Tree maladaptation to current climates

A study on valley oak found that populations grow faster at cooler temperatures, suggesting the need for new conservation methods to mitigate warming temperature effects. Selecting seed sources based on genotype may alleviate declining growth rates.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Researchers reach milestone in quantum standardization

Cycle benchmarking provides a solution to compare the capabilities of quantum processors across different architectures and applications. Researchers have made significant progress in characterizing errors in quantum systems, paving the way for establishing universal standards for measuring quantum computer performance.

SourceUniversity of Waterloo·JournalNature Communications·DateNov 25, 2019

Changes in oxygen concentrations in our ocean can disrupt fundamental biological cycles

Researchers found that a decline in ocean oxygen can break down feedback mechanisms controlling the marine nitrogen cycle, which is essential for all forms of life. The team used a data-constrained earth system model to show that extreme deoxygenation can lead to a collapse of the ocean's bioavailable nitrogen inventory.

SourceUniversity of Bristol·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

A missing link in haze formation

A team of researchers from the University of Pennsylvania has discovered a crucial link between alcohol molecules and haze formation. Alcohols like methanol reduce particle formation by consuming sulfur trioxide, converting it to more sticky compounds that promote growth.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Hops compounds help with metabolic syndrome while reducing microbiome diversity

Researchers found that xanthohumol and its derivatives can decrease microbiome diversity while reducing inflammation and improving energy metabolism in laboratory animals with high-fat diets. The study suggests that hops compounds may help combat metabolic syndrome by altering bile acid metabolism and changing gut microbiota.

SourceOregon State University·JournalMolecular Nutrition & Food Research·DateNov 25, 2019

Using gene scissors to detect diseases

A team of scientists at the University of Freiburg has created a microfluidic chip that recognizes small RNA fragments, enabling faster and more precise disease diagnosis. The CRISPR biosensor can detect increased levels of miRNA in blood samples from patients with brain tumors.

SourceUniversity of Freiburg·JournalAdvanced Materials·DateNov 25, 2019

Encouraging normal liver cells to fight cancer

Researchers discover that non-cancerous liver cells around tumors have the capacity to kill nearby tumor cells when hyperactivated, leading to reduced tumor burden and longer survival in mice. The study identifies YAP and TAZ genes as driving this anti-tumor mechanism.

SourceVIB (the Flanders Institute for Biotechnology)·JournalScience·DateNov 25, 2019

NASA's Webb to unveil the secrets of nearby dwarf galaxies

The James Webb Space Telescope will study dwarf galaxy companions to the Milky Way and Andromeda, gaining insights into galaxy formation and dark matter. By measuring star motions, researchers hope to determine if some galaxies are grouped in a flat plane, which would have significant implications for understanding their formation.

SourceNASA/Goddard Space Flight Center·DateNov 25, 2019

New approach to treating incurable leukemia in children discovered

Researchers at the University of Zurich have identified a new target for treating incurable leukemia in children by analyzing the molecular causes of the disease. They found that an abnormal protein activates genes at the wrong time, triggering the formation of malignant white blood cells and causing leukemia.

SourceUniversity of Zurich·JournalCancer Cell·DateNov 25, 2019

A new world map rates food sustainability for countries across the globe

A new global map assesses the sustainability of food systems, considering factors beyond productivity and nutrition. The study identifies knowledge gaps and provides a standardized framework for measuring food system sustainability.

SourceThe Alliance of Bioversity International and the International Center for Tropical Agriculture·JournalScientific Data·DateNov 25, 2019

Drag can lift birds to new heights, Stanford researchers find

Researchers at Stanford University found that birds utilize drag to support their body weight during takeoff, employing lift as a brake in landings. This new understanding challenges conventional wisdom about the role of drag and lift in flight.

SourceStanford University·JournalNature Communications·DateNov 25, 2019

MRI reveals brain damage in obese teens

Researchers found brain damage in obese adolescents related to inflammation, particularly in regions controlling appetite and emotions. The study used MRI to track white matter damage and correlated it with inflammatory markers such as leptin and insulin.

SourceRadiological Society of North America·DateNov 25, 2019

Meeting the challenges facing fisheries climate risk insurance

The world's first 'Fisheries Index Insurance' scheme aims to protect Caribbean fishing communities from extreme weather events. However, policymakers must complement climate risk insurance with adaptations actions in coastal ecosystems to ensure its effectiveness.

SourceUniversity of Exeter·JournalNature Climate Change·DateNov 25, 2019