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Science News for April 29, 2019


Darwin can help your doctor

A team of scientists, led by microbiologist Marjon de Vos, conducted a review to explore the application of evolutionary theory in clinical microbiology. By analyzing microbial communities and genetic data, they identified potential solutions for treating cystic fibrosis patients and limiting the spread of antibiotic resistance.

SourceUniversity of Groningen·JournalThe Lancet Infectious Diseases·DateApr 29, 2019

Massachusetts General study finds women pay more for over-the-counter moisturizers

A Massachusetts General Hospital study reveals significant price disparities in facial moisturizer products targeted at men and women, with women's products costing an average of $3.09 more per ounce. The study suggests that discriminatory pricing persists despite recent government efforts to restrict such differences.

SourceMassachusetts General Hospital·JournalJournal of Cosmetic Dermatology·DateApr 29, 2019

Cosmic dust reveals new insights on the formation of solar system

A study of a tiny grain of stardust older than our solar system has provided new insights into planetary system formation. The presolar graphite grain contained oxygen-rich silicates, contradicting the scientific hypothesis on two types of stardust material.

SourceUniversity of Toronto Faculty of Applied Science & Engineering·JournalNature Astronomy·DateApr 29, 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.

Exoplanets and water worlds

Sub-Neptune exoplanets are likely to be water worlds due to simulations of planetary growth. These planets contain at least 25% water-dominated ices or fluids, rather than gas dwarfs with a rocky core surrounded by a gaseous envelope.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Simple clinical features can help personalize type 2 diabetes treatment

A new study from the University of Exeter Medical School found that using characteristics such as weight and age at diagnosis can help select the best diabetes drug for individuals. This approach is more effective than previous models, which divide adults with diabetes into subgroups.

SourceUniversity of Exeter·JournalThe Lancet Diabetes & Endocrinology·DateApr 29, 2019

New view on the mechanisms of how the brain works

Studies found that all brain parts process touch signals, complementing each other for perception. Brain network processing information as a single network with partially different functions from situation to situation.

SourceLund University·JournalCell Reports·DateApr 29, 2019

Study suggests no direct link between drinking sugar sweetened drinks and higher energy consumption or BMI in children

A nationally representative survey of UK children aged 4-10 years found no strong correlation between drinking sugar sweetened beverages and higher energy consumption or BMI. The study suggests that relying on a single-nutrient approach, such as a 'sugar tax', may not be effective in tackling childhood obesity.

SourceEuropean Association for the Study of Obesity·DateApr 29, 2019

Ocean's 'seasonal memory' affects Arctic climate change

The Arctic Ocean's seasonal memory mechanism explains how atmospheric circulation causes the Eurasian Arctic to melt faster than the American Arctic. The researchers found that different seasonal patterns are at play depending on region, with the Eurasian Arctic losing ice in winter and the American Arctic only losing ice in summer.

SourceMoscow Institute of Physics and Technology·JournalAtmosphere·DateApr 29, 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.

Study highlights how little we know about women terrorists

A large-scale research project highlights significant differences between men and women in their backgrounds and roles within terrorist groups. Women were less likely to be involved in planning or carrying out attacks, and more likely to play behind-the-scenes supporting roles.

SourceNorth Carolina State University·JournalJournal of Threat Assessment and Management·DateApr 29, 2019

Alcohol ads in sport fuel drinking culture

A new international study by Monash University and Parisien Laboratory of Social Psychology found a positive link between alcohol sponsorship and attitudes, as well as exposure to specific brands. The research suggests that incidental exposure to alcohol marketing messages influences participants' drinking attitudes.

SourceMonash University·JournalDrug and Alcohol Review·DateApr 29, 2019

What a dying star's ashes tell us about the birth of our solar system

A team of researchers discovered a grain of dust forged in a stellar explosion, challenging current theories about how stars seed the universe. The grain, LAP-149, is highly enriched in carbon-13, providing evidence that novae contributed to the building blocks of our solar system.

SourceUniversity of Arizona·JournalNature Astronomy·DateApr 29, 2019
Apple iPhone 17 Pro

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

Brain area tied to emotions is larger in vets, service members with mild TBI and PTSD

A new study found that veterans and active-duty service members with combat-related PTSD and mild traumatic brain injury had larger amygdalas, a key region in processing emotions, compared to those with only brain injuries. The findings suggest a potential link between amygdala size and the development of PTSD symptoms.

SourceVeterans Affairs Research Communications·JournalJournal of Head Trauma Rehabilitation·DateApr 29, 2019

How to purify water with graphene

Scientists have discovered that graphene can be used to purify water by capturing bacterial cells, making it drinkable. The process involves adding graphene oxide to solutions containing E.coli bacteria, resulting in the formation of flakes that can be easily extracted and reused.

SourceNational University of Science and Technology MISIS·JournalMaterials Science and Engineering C·DateApr 29, 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.

Wax helps plants to survive in the desert

Researchers have discovered that desert plants like the colocynth use a special wax to prevent their leaves from drying out in extreme heat. This wax reduces water permeability, enabling plants to conserve water and survive. In contrast, date palms have a different type of wax that helps them thrive in hot conditions.

SourceUniversity of Würzburg·JournalJournal of Experimental Botany·DateApr 29, 2019

Tumor-selective angiotensin blockers may improve response to cancer immunotherapy

Researchers found that combining tumor-selective angiotensin blockers with immune checkpoint blockers significantly improves breast cancer treatment in mouse models. The combination treatment normalizes the tumor microenvironment, inducing changes in gene expression and activating immunosupportive pathways.

SourceMassachusetts General Hospital·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Spinning black hole sprays light-speed plasma clouds into space

Astronomers have discovered rapidly swinging jets from a black hole in V404 Cygni, behaving in a way never seen before. The jets are thought to be caused by the misalignment of the accretion disk and the black hole, resulting in a wobble-like motion.

SourceInternational Centre for Radio Astronomy Research·JournalNature·DateApr 29, 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.

Researchers identify ways to predict and avoid radiotherapy side effects

A combination of biological markers and genetic changes can predict radiation sensitivity, helping doctors assess patients at risk of side effects. The study found that the time of day when radiotherapy is given can also affect side effects, particularly in breast cancer patients.

SourceEuropean Society for Radiotherapy and Oncology (ESTRO)·DateApr 29, 2019

Federal research significant in environmental rule-making

Stakeholders rely on federal government-sponsored research to form opinions on hydraulic fracturing, viewing it as more neutral and credible. The study highlights the importance of federal research in reducing polarization and shaping the regulatory landscape.

SourcePenn State·JournalAnnals of the American Association of Geographers·DateApr 29, 2019

Preventing harassment in online discussions

Online discussions with community expectations posting increased newcomer participation by 70% and rule compliance by 8.4%. Ensuring visible community norms benefits group dynamics.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Biomarker for chronic fatigue syndrome identified by Stanford researchers

Researchers at Stanford University School of Medicine have created a blood test that can flag the disease, which currently lacks a standard diagnostic test. The test successfully identified participants in a study with chronic fatigue syndrome and is being used to screen for potential drugs that may help treat the condition.

SourceStanford Medicine·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Nitrous oxide in agricultural reservoirs

Researchers discovered that small farm dams in Canada are unexpectedly absorbing nitrous oxide, a potent greenhouse gas. This finding suggests that these nutrient-rich waterbodies could be used to reduce agricultural emissions.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 29, 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.

Five things to know about loneliness in older adults

Loneliness is a common emotional state in older adults linked to declines in health and increased healthcare usage. Social prescribing may alleviate loneliness by connecting lonely individuals with community supports.

SourceCanadian Medical Association Journal·JournalCMAJ Open·DateApr 29, 2019

Patterns of compulsive smartphone use suggest how to kick the habit

A study by University of Washington researchers identified common triggers for compulsive smartphone use, including waiting for a friend, tedious tasks, and social awkwardness. The team also found that users can find meaning in phone use through apps like meme generators and Kindle, which promote lasting connections to the real world.

SourceUniversity of Washington·DateApr 29, 2019

Estimates of illness, death among children, adolescents worldwide

Mortality rates among children and adolescents (birth to age 20) decreased globally between 1990 and 2017 due to declines in infectious diseases. However, years lived with disability (YLDs) rose, primarily caused by iron-deficient anemia, vitamin A deficiency, and mental health disorders.

SourceJAMA Network·JournalJAMA Pediatrics·DateApr 29, 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.

Filaments and fibres three times finer than a human hair

Researchers at the University of Seville developed a method to produce high-filament thin polymer fibres, opening doors for industrial-scale production and various applications in material science. The filaments have diameters as small as 50 micrometres and show great elasticity.

SourceUniversity of Seville·JournalACS Omega·DateApr 29, 2019

WHO study confirms breastfeeding protects against child obesity, however levels of breastfeeding across Europe are well off-target

Research from WHO Europe found that babies who were never or only partially breastfed have a higher risk of becoming obese as children compared to exclusively breastfed babies. The study suggests that promoting breastfeeding practices can help prevent childhood obesity in Europe, but adoption rates are still below global recommendations.

SourceEuropean Association for the Study of Obesity·JournalObesity Facts·DateApr 29, 2019

Study: Mindfulness may help decrease stress in caregivers of veterans

A pilot study found that mindfulness-based cognitive therapy skills significantly decreased stress, anxiety, and worry among caregivers of veterans. The intervention was effective in reducing caregiver burden, but more research is needed to explore its benefits for the veteran population as well.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalMindfulness·DateApr 29, 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.

New WHO research reveals wide gradient of severe child obesity across Europe, with southern Europe having the highest levels

The study found a significant variation in the prevalence of severe child obesity across European countries, with Southern Europe showing the highest rates. Severe obesity is associated with worse health outcomes and limited treatment options, highlighting the need for effective policy measures to prevent obesity.

SourceEuropean Association for the Study of Obesity·JournalObesity Facts·DateApr 29, 2019

Morning exercise can improve decision-making across the day in older adults

A morning bout of moderate-intensity exercise improves cognitive performance like decision-making across the day compared to prolonged sitting without exercise. Brief light-intensity walking breaks can also boost short-term memory by disrupting uninterrupted sitting.

SourceBaker Heart and Diabetes Institute·JournalBritish Journal of Sports Medicine·DateApr 29, 2019

Study links gene to sleep problems in autism

A recent study published in eLife has identified the gene SHANK3 as a key player in sleep problems associated with autism spectrum disorder. The research found that individuals with autism have trouble falling asleep due to difficulty regulating their body's circadian clock, which regulates the 24-hour day and night cycle.

SourceWashington State University·DateApr 29, 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.

A surprise: Bonobos eat and share meat at rates similar to chimpanzees

Researchers from the University of Oregon found that female bonobos control meat consumption and sharing, similar to male-dominated chimpanzees. They also observed aggressive behavior towards adult males trying to take pieces of meat, but showed tolerance with subadult males.

SourceUniversity of Oregon·JournalFolia Primatologica·DateApr 29, 2019

BU receives Massachusetts life sciences capital grant award

The Center for Translation Neurotrauma Imaging (CTNI) aims to pioneer biomarkers, diagnostics, and therapeutics for neurodegenerative diseases. The facility will create novel brain imaging techniques to track subtle changes in the brain after neurotrauma.

SourceBoston University School of Medicine·DateApr 29, 2019

Precision medicine for pediatric cancers: New hope for children and adolescents

A recent study published in JAMA Network Open shows that precision medicine can be a reality for pediatric tumours, identifying genomic anomalies to guide treatment and offer targeted therapies. The TRICEPS project has successfully enrolled 84 patients, leading to better patient management and more effective treatment options.

SourceUniversity of Montreal·JournalJAMA Network Open·DateApr 29, 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.

'Pedigree is not destiny' when it comes to scholarly success

Researchers found that current work environment is a better predictor of future success than doctoral training prestige. Despite this, early career researchers retain some benefit from prestigious programs in terms of citation accumulation.

SourceSanta Fe Institute·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Berkeley Lab science snapshots April 2019

Researchers developed a statistical method to quantify changes in environmental systems, finding La Nina winters favor mountain snowpack. Scientists also invented synthetic antibodies that could improve disease detection and toxin identification.

SourceDOE/Lawrence Berkeley National Laboratory·JournalClimate Dynamics·DateApr 29, 2019

The search for nothing at all

A team at Colorado State University has developed a new technique called barium tagging, which could help scientists pinpoint single-atom byproducts of double-beta decay. This breakthrough aims to solve longstanding mysteries about neutrinos and their properties.

SourceColorado State University·JournalNature·DateApr 29, 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.

UT faculty win grant to study Russian disinformation campaigns

A team of UT researchers will monitor and analyze Russian information warfare tactics, measuring their effectiveness in shaping public opinion in Georgia, Ukraine, and Belarus. The project aims to model relationships between propaganda and opinion, assessing the impact of disinformation campaigns on democratic institutions.

SourceUniversity of Tennessee at Knoxville·DateApr 29, 2019

Keeping very low birth weight babies warm

The medical staff of the Neonatal Intensive Care Unit (NICU) at University Hospitals Rainbow Babies & Children's Hospital implemented a model for improvement to decrease hypothermia in very low birth weight (VLBW) babies. As a result, they achieved a 97.5% reduction in temperature less than 36 degrees over four years.

SourceUniversity Hospitals Cleveland Medical Center·DateApr 29, 2019

Medieval skeletons reveal ancient bone disorder

Researchers used protein sequence-based methods to diagnose an ancient and atypical form of Paget's disease in medieval skeletons. The study found extensive pathological changes, high disease prevalence, and low age-at-death estimations for affected skeletons.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

How the bumble bee got its stripes

Researchers have identified a key gene driving color differences in bumble bee species, revealing the genetic basis of mimicry and evolutionary adaptations. The study found that a specific regulatory region influences Abdominal-B gene expression, resulting in unique color patterns.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019
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.

Urine test could prevent cervical cancer

Researchers at University of Manchester found urine testing to be just as effective as the cervical smear in detecting high-risk human papillomavirus (HPV) that causes cervical cancer. The study suggests a urine test could increase participation rates for cervical cancer screening among younger women.

SourceUniversity of Manchester·JournalBMJ Open·DateApr 29, 2019

Are Canadians kept in the dark about new risks of medicines?

A new international study found that regulators in four countries - including Canada - were only consistent in the decision to warn about potential drug safety risks 10% of the time. This lack of consistency highlights a need for better communication of important drug safety notices.

SourceUniversity of British Columbia·JournalJAMA Internal Medicine·DateApr 29, 2019

Your present self is your best future self, according to new research

New research from UCLA suggests that predicting little change in one's future self is strongly related to increased life satisfaction. People who expect to remain the same tend to be more satisfied with their lives ten years later, while those expecting improvement or decline report less satisfaction.

SourceSociety for Personality and Social Psychology·JournalSocial Psychological and Personality Science·DateApr 29, 2019

Oral cancer detection by dentists is significantly on the rise

A significant rise in oral cancer and pre-cancerous lesion detection by dentists in Ontario is reported, with a nearly doubling of cancers detected between 2005 and 2015. The study suggests that comprehensive training and continuing education programs for oral health professionals may be behind the dramatic increase in detection rates.

SourceUniversity of Toronto - Faculty of Dentistry·JournalThe Journal of the American Dental Association·DateApr 29, 2019

Study reveals hip and knee replacement performance in England and Wales

Researchers analyzed 4,442 hip implants and 947,686 knee replacements to find that some implants have excellent results with low failure rates, while others perform poorly. The study provides a comprehensive benchmark for joint replacement surgery, enabling patients to discuss their options with surgeons.

SourceUniversity of Bristol·JournalBMJ Open·DateApr 29, 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.

A simple solution to a complex problem

A team of scientists at the University of Freiburg has discovered a transport protein in mycobacteria responsible for absorbing L-arabinofuranose, a crucial nutrient. This breakthrough could lead to the development of new antibiotics and treatments for diseases like tuberculosis.

SourceUniversity of Freiburg·JournalCell Chemical Biology·DateApr 29, 2019

Readmission penalties for safety net hospitals drop under new rules

The Hospital Readmissions Reduction Program saw a 4 percentage point reduction in penalties across all hospitals and a 14 percentage point reduction in penalties for safety net hospitals. Researchers found the greatest impact on nonteaching, physician-owned hospitals in rural regions.

SourceUT Southwestern Medical Center·JournalJAMA Network Open·DateApr 29, 2019

Demand growing for CV specialists trained to treat heart disease in cancer patients

The number of cardiologists trained in cardio-oncology is not meeting the growing needs of cancer survivors, who are aging and developing co-morbid cardiovascular disease. Limited training programs and resources are emerging to address this need, highlighting the importance of collaboration between cardiologists and oncologists.

SourceAmerican College of Cardiology·JournalJournal of the American College of Cardiology·DateApr 29, 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.

New polymer films conduct heat instead of trapping it

MIT engineers have developed thin polymer films that conduct heat better than many metals, including steel and ceramic. The films, which are thinner than plastic wrap, exhibit high thermal conductivity due to the untangled molecular structure of polyethylene.

SourceMassachusetts Institute of Technology·JournalNature Communications·DateApr 29, 2019

Suicide rates spike nationally among youth after '13 Reasons Why' release

A recent study found a significant increase in youth suicide deaths following the release of '13 Reasons Why,' highlighting the need for responsible reporting on suicide. The series' portrayal of suicidal behavior has been criticized for potentially promoting simplistic explanations and glorifying the decedent.

SourceNationwide Children's Hospital·JournalJournal of the American Academy of Child & Adolescent Psychiatry·DateApr 29, 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.

Release of '13 Reasons Why' associated with increase in youth suicide rates

A NIH-supported study found that the release of "13 Reasons Why" was associated with a significant increase in US youth suicide rates, particularly among young males. The show's portrayal of suicide was linked to an estimated 195 additional suicide deaths between April and December 2017.

SourceNIH/National Institute of Mental Health·JournalJournal of the American Academy of Child & Adolescent Psychiatry·DateApr 29, 2019

Ag census reveals first reports of kiwiberry production in the northeast

For the first time since 1840, farmers in several Northeast states are reporting kiwifruit production operations, with two producers in New Hampshire self-reporting kiwifruit production. The increase in kiwiberry operations is attributed to growing consumer interest, an established valuation of local produce, and a unique culture of di...

SourceUniversity of New Hampshire·DateApr 29, 2019

Plant cells eat their own ... membranes and oil droplets

Researchers found that autophagy helps build and break down plant oils by delivering fatty acids from membrane recycling to lipid droplets. By manipulating this process, scientists may be able to drive up oil accumulation in bioenergy crops.

SourceDOE/Brookhaven National Laboratory·JournalThe Plant Cell·DateApr 29, 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.

As oceans warm, microbes could pump more CO2 back into air, study warns

A new study suggests that ocean warming may lead to faster carbon recycling, reducing the deep ocean's ability to store carbon. In many regions, bacteria consume plankton at shallower depths than previously thought, releasing CO2 back into the atmosphere.

SourceColumbia Climate School·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Prestige of current affiliation shapes scientific productivity

Research finds that current affiliation's prestige shapes the scientific productivity of early-career faculty, not past training environment. Faculty at more prestigious institutions produce significantly more scholarly output than those at less prestigious institutions.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Record solar hydrogen production with concentrated sunlight

Researchers at EPFL's LRESE have developed an enhanced photo-electrochemical system that can efficiently produce hydrogen using concentrated solar irradiation. The device has achieved a 17% conversion rate and is stable, with the ability to handle stochastic dynamics of daily solar irradiation.

SourceEcole Polytechnique Fédérale de Lausanne·JournalNature Energy·DateApr 29, 2019

Decoupled graphene thanks to potassium bromide

Graphene decoupling with potassium bromide leads to improved electrical properties, closing the gap to pure graphene. This method reduces damage and contamination during transfer, enabling defect-free production.

SourceUniversity of Basel·JournalACS Nano·DateApr 29, 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.

Are coffee farms for the birds? Yes and no

Research reveals coffee plantations host nearly as many bird species as forests, with shaded areas providing double the number of forest specialist birds. However, overall bird populations decline, highlighting the need for large primary forest reserves for conservation.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

The last chance for Madagascar's biodiversity

A team of scientists has identified five priority measures for Madagascar's new government to prevent species and habitats being lost forever. Investing in protected areas and local community tenure over natural resources are key strategies to address the country's biodiversity crisis.

SourceBangor University·JournalNature Sustainability·DateApr 29, 2019

Surgery shown to improve walking for children with cerebral palsy

A new surgical procedure has been shown to improve movement and quality of life for children with cerebral palsy. The selective dorsal rhizotomy procedure involves cutting sensory nerves to relieve stiffness and pain. The study provided convincing evidence that the procedure helps children, with no significant health risks identified.

SourceNIHR Biomedical Research Centre at Guy’s and St Thomas’ and King’s College London·JournalThe Lancet Child & Adolescent Health·DateApr 29, 2019

An important function of non-nucleated sperm

A research team has identified the Sex-lethal gene as essential for the formation of apyrene sperm, a type of non-nucleated sperm found in some animals. Apyrene sperm are required for eupyrene sperm migration in female organs, indicating their importance in fertilization.

SourceNational Institutes of Natural Sciences·JournalProceedings of the National Academy of Sciences·DateApr 29, 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.

Inorganic perovskite absorbers for use in thin-film solar cells

Researchers developed stable inorganic perovskite semiconductors at moderate temperatures, enabling integration into thin-film solar cells. The optimized CsPbI3 layers showed an initial efficiency of over 12% and stable performance for over 1200 hours.

SourceHelmholtz-Zentrum Berlin für Materialien und Energie·JournalAdvanced Energy Materials·DateApr 29, 2019

Researchers find ice feature on Saturn's giant moon

A team of researchers led by Caitlin Griffith discovered a mysterious linear ice corridor on Titan's surface, which suggests the presence of past volcanic activity. The find sheds new light on Titan's unique atmospheric chemistry and potential for life

SourceUniversity of Arizona·JournalNature Astronomy·DateApr 29, 2019

Food packaging claims mislead consumers with ideas of health

Research reveals that front-of-pack food claims on breakfast cereals can be uncorrelated with actual nutritional quality, yet still influence consumers' perceptions of taste, healthiness, and fattening consequences. The study identifies four distinct types of claims and their effects on consumer choices.

SourceINSEAD·JournalJournal of Public Policy & Marketing·DateApr 29, 2019

Study scrutinizes credibility of weight management blogs by most

A new study assesses the credibility of nine popular UK weight management influencers' blogs, finding that most failed to meet basic standards for transparency, evidence-based references, and nutrition guidance. Only one influencer met all the criteria, while those without nutritional qualifications scored lowest.

SourceEuropean Association for the Study of Obesity·DateApr 29, 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.

Systematic review shows risk of a child developing overweight or obesity is more than trebled by maternal obesity prior to pregnancy

A systematic review by Newcastle University researchers found that maternal obesity prior to pregnancy increases the risk of childhood obesity by over three times. The study also identified higher risks for children born to mothers with overweight BMI, emphasizing the need for early interventions focused on weight management.

SourceEuropean Association for the Study of Obesity·DateApr 29, 2019

Details of the history of inner Eurasia revealed by new study

Researchers analyzed DNA from 763 individuals across the region, finding three distinct east-west genetic groupings correlating with ecological zones. The study reveals previously unknown genetic connections and shifts in ancestry over time, shedding light on human migration and cultural transfer in inner Eurasia.

SourceMax Planck Institute of Geoanthropology·JournalNature Ecology & Evolution·DateApr 29, 2019

Widespread brain connections enable face recognition

A study found that a wider network of brain regions than previously thought is engaged in remembering a familiar face, linking the 'face network' with social, visual, and auditory circuits. This integration predicts facial memory performance.

SourceSociety for Neuroscience·DateApr 29, 2019

Susceptibility to disease develops during childhood

Researchers identify five classes of early immune-system programming, linking childhood experiences to chronic inflammatory diseases and psychiatric disorders in adulthood. The study found that children with resilient immune systems were better protected against both conditions.

SourceUniversity of Zurich·JournalBMC Medicine·DateApr 29, 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.

Parasitoid wasps may turn spiders into zombies by hacking their internal code

Researchers found that parasitoid wasp larvae use the ecdysone hormone to hack into spiders' internal code, inducing changes in web construction and behavior. This external parasite rides on the surface of the spider's abdomen, injecting psychotropic substances to access the brain.

SourceSmithsonian Tropical Research Institute·JournalBiological Journal of the Linnean Society·DateApr 29, 2019

Fleming's method in miniature

Researchers at ETH Zurich develop a new technique, nanoFleming, to rapidly test for antibiotic activity in microorganisms. The method has identified 11 novel peptides with improved efficacy or resistance-bypassing properties.

SourceETH Zurich·JournalNature Chemical Biology·DateApr 29, 2019

AmorChem | Champions of the 2019 KNOCK OUT!

GlycoNet researchers Drs. Alexey V. Pshezhetsky and Christopher Cairo have been awarded half a million dollars to advance research on human neuraminidase inhibitors for treating cardiovascular and autoimmune diseases. The funding will support the development of novel treatments for these complex diseases.

SourceCanadian Glycomics Network·DateApr 29, 2019

Attitudes toward physician-assisted death among adults with elevated level of biomarker associated with Alzheimer's disease

Cognitively normal adults with elevated levels of amyloid-β exhibited mixed attitudes toward physician-assisted death, reflecting complex emotions and values surrounding end-of-life care. The study highlights the need for nuanced discussions about dying wishes and advance care planning in this vulnerable population.

SourceJAMA Network·JournalJAMA Neurology·DateApr 29, 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.

House hunting is a struggle for mixed-race families

A new study by Brigham Young University researchers found that mixed-race couples with children are more likely to move to racially diverse neighborhoods, but often settle for less affluent areas. These couples face challenges in finding neighborhoods that balance affordability with diversity and access to quality education.

SourceBrigham Young University·JournalDemography·DateApr 29, 2019

For certain invasive species, catching infestation early pays off

A global meta-analysis reveals that invasive species can cause significant declines in native populations, especially when they reach higher trophic levels. Early detection becomes critical to prevent long-term damage. Strong policies are needed to prevent novel introductions and manage early stages of invasion.

SourceUniversity of Massachusetts Amherst·JournalProceedings of the National Academy of Sciences·DateApr 29, 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.

Ecological structure of mammal communities across time

A study analyzes mammalian communities across 98 biomes, finding that vegetation type strongly influences ecological structure. The ecospace of extinct communities overlapped with extant ones, but lacked frugivores and granivores.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Breast cancer in young women: Good outcomes with advised therapy

Studies presented at ESMO Breast Cancer Congress 2019 found that young women with breast cancer tend to have more aggressive tumour subtypes, including triple negative and HER2 positive types. However, proper treatment according to guidelines resulted in good survival rates and local recurrence outcomes.

SourceEuropean Society for Medical Oncology·JournalAnnals of Oncology·DateApr 29, 2019

Tel Aviv university study paves way for innovative treatment of epilepsy

Researchers at Tel Aviv University have discovered a homeostatic mechanism that regulates brain activity in neural circuits, paving the way for new treatments of epilepsy. A commonly used medication for multiple sclerosis may also be effective in suppressing seizures in patients with Dravet syndrome.

SourceAmerican Friends of Tel Aviv University·JournalNeuron·DateApr 29, 2019

Magma is the key to the moon's makeup

Researchers at Yale University and Japan offer an explanation for the moon's composition, suggesting that magma played a key role in its formation. The new model suggests that 80% of the moon is made up of proto-Earth materials, contradicting previous theories that suggested the impactor was responsible.

SourceYale University·JournalNature Geoscience·DateApr 29, 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.

Prominently posted rules boost participation, cut harassment online

Clear behavioral rules posted prominently in online discussions can increase participation by 70% while preventing thousands of harassing comments. By influencing social norms, these visible rules promote a culture of inclusion.

SourcePrinceton University, Engineering School·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Squid skin inspires creation of next-generation space blanket

Researchers created a next-generation space blanket that regulates body temperature using metal 'islands' similar to cephalopod skin, allowing infrared radiation to escape when stretched. The material is ultra-lightweight, durable, and has potential applications in clothing and building insulation.

SourceUniversity of California - Irvine·JournalNature Communications·DateApr 29, 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.

Astronauts might soon grow SPACE tomatoes

Researchers are tweaking tiny tomato plants to increase photosynthesis and make them suitable for growing on the International Space Station. The goal is to create a crop that can feed astronauts and potentially support future space colonies.

SourceUniversity of California - Riverside·DateApr 29, 2019

Partitioning of porous materials

Scientists have developed a fast and versatile two-in-one synthetic strategy to partition pores in metal-organic frameworks (MOFs), resulting in highly efficient adsorbents. The new pore-space-partitioned MOF shows better gas uptakes than unpartitioned materials, particularly for ammonia uptake with high packing density.

SourceWiley·JournalAngewandte Chemie International Edition·DateApr 29, 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.

Ohio collaborative improves care of opioid-exposed infants

The Ohio Perinatal Quality Collaborative initiative improved the care of opioid-exposed infants by reducing pharmacological treatment duration and length of hospital stay. The project, which monitored 9,648 infants from 2014 to 2018, saw a decline in the proportion requiring treatment from 48% to 42%.

SourceCincinnati Children's Hospital Medical Center·DateApr 29, 2019

What makes memories stronger?

Studies in rats reveal that highly demanding and rewarding experiences result in stronger memories due to replay processes in the hippocampus. This finding provides new insights into memory consolidation, which could lead to treatments that strengthen memories and better understand memory decline in diseases like dementia.

SourceVIB (the Flanders Institute for Biotechnology)·JournalCurrent Biology·DateApr 29, 2019

GRACE mission data contributes to our understanding of climate change

The GRACE twin satellite system has contributed nearly two decades of crucial data to our understanding of global climate patterns. The mission has recorded three times the mass of ice lost in polar and mountainous regions, and enabled a measure of heat added to oceans.

SourceUniversity of Texas at Austin·JournalNature Climate Change·DateApr 29, 2019

How the olfactory brain affects memory

Researchers found that piriform cortex stimulation triggers synaptic plasticity in the hippocampus, leading to enhanced memory formation. The study provides a theoretical basis for understanding the special role of olfaction in memory formation and retrieval.

SourceRuhr-University Bochum·JournalCerebral Cortex·DateApr 29, 2019

Continuous chemotherapy improves outcomes and quality of life in advanced breast cancer

Patients with advanced HER2-negative breast cancer treated with continuous chemotherapy showed improved survival rates and maintained quality of life compared to intermittent scheduling. The study also found that treatment holidays had a negative impact on physical quality of life scores, with a clinically meaningful decline at 24 months.

SourceEuropean Society for Medical Oncology·JournalAnnals of Oncology·DateApr 29, 2019

Autism diagnoses prove highly stable as early as 14 months

A study published in JAMA Pediatrics found that autism diagnoses become stable starting at 14 months, with a mean age of diagnosis being significantly lower than previously reported. This suggests that accurate screening and earlier treatment can result in improved therapeutic benefits for children with ASD.

SourceUniversity of California - San Diego·JournalJAMA Pediatrics·DateApr 29, 2019

For low-income countries, climate action pays off by 2050

Successful global efforts to limit greenhouse gas emissions would likely increase the average GDP of Malawi, Mozambique, and Zambia by 2-6 percentage points by 2050. Lower oil prices due to reduced demand would also contribute to economic growth in these countries.

SourceInternational Food Policy Research Institute·JournalClimatic Change·DateApr 29, 2019

Study links exam stress with junk food cravings, snacking, and eating less fruit and veg

A study found that university students who experience high levels of exam stress are more likely to crave junk food, snack frequently, and consume fewer fruits and vegetables. The study suggests that prevention strategies should integrate psychological and lifestyle aspects to combat stress-induced eating.

SourceEuropean Association for the Study of Obesity·JournalEuropean Journal of Nutrition·DateApr 29, 2019

Earlier detection of diabetic retinopathy with smartphone AI

Researchers at Michigan Medicine developed a smartphone-based tool that uses artificial intelligence to analyze retinal images and detect diabetic retinopathy. The device, called RetinaScope, achieved high sensitivity and specificity rates in a study, outperforming human graders in detecting the condition.

SourceMichigan Medicine - University of Michigan·DateApr 29, 2019

Why a smell test should become part of a regular doctor visit

A new study suggests that older adults with poor sense of smell may be at a 46% higher risk for death at 10 years and 30% at 13 years compared to those with good smell. Poor sense of smell is linked to higher mortality in both healthy and unhealthy individuals, with most of the risk remaining unexplained.

SourceMichigan State University·JournalAnnals of Internal Medicine·DateApr 29, 2019

Graphene sponge helps lithium sulphur batteries reach new potential

Researchers at Chalmers University of Technology developed a graphene sponge that acts as a free-standing electrode in lithium sulphur batteries, improving their energy density and cycle life. The new design achieves an 85% capacity retention after 350 cycles, reducing instability issues.

SourceChalmers University of Technology·JournalJournal of Power Sources·DateApr 29, 2019

Agriculture and bird decline in Costa Rica

Research suggests that large protected forest areas are crucial for conserving bird species, while coffee plantations can serve as habitats for migratory birds and young birds. Insectivores suffered the greatest declines, with population losses greater in smaller forest fragments.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Deep learning takes Saturn by storm

Researchers from UCL and University of Arizona developed a 'deep learning' approach called PlanetNet to detect storms on Saturn. The algorithm accurately maps the components and features in turbulent regions, revealing previously undetected atmospheric features such as ammonia ice clouds.

SourceUniversity College London·JournalNature Astronomy·DateApr 29, 2019

Climate, grasses and teeth -- the evolution of South America mammals

About 7-6 million years ago, the Hadley circulation intensified, leading to drier climate, expanding subtropical grasslands and increasing mammal species that eat grasses. The research provides a new understanding of late Miocene ecosystems and their evolution.

SourceUniversity of Arizona·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Fossils illuminate variation and continuity in early Asians

Fossils found in southeastern China provide insights into Middle Pleistocene human evolution. The discovery sheds light on the continuity of form through time and regional variations among early Asians.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Drug treats Type 2 diabetes in children, team announces

A clinical trial found liraglutide, an existing adult diabetes medication, effectively treats Type 2 diabetes in children. The study showed a significant reduction in A1C levels and improvements in glycated hemoglobin levels, offering new treatment options for this age group.

SourceUniversity of Texas Health Science Center at San Antonio·JournalNew England Journal of Medicine·DateApr 29, 2019

Study: Loan-replacement grants boost low-income students' graduation rates

A study found that freshmen from low-income families who received Illinois Promise loan-replacement grants were significantly more likely to graduate within five years compared to peers without the program. The grant recipients had a 76.3% graduation rate, while non-recipient peers had a 67.1% rate.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalThe Review of Higher Education·DateApr 29, 2019

The Tietê, São Paulo State's main river, is filtered by dam reservoirs

A study by Brazilian researchers shows that the Tietê River's water quality improves steadily as it flows through a series of dams along its 1,100 km course. The filtration process retains matter in suspension, affecting light absorption and ultimately making the river transparent at its downstream end.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalWater·DateApr 29, 2019

Responses to environmental tragedies often make matters worse, ethicists find

Conservationists analyzed a controversial Australian goat removal program to develop a framework for evaluating intervention options. The study highlights the importance of considering community values, avoiding assumptions, and being logically sound in conservation decisions. It recommends key attributes such as clarity, transparency,...

SourceOregon State University·JournalConservation Biology·DateApr 29, 2019

Food system improvements could make it easier to eat healthier

A science advisory from the American Heart Association describes system-wide innovations to improve access to healthy foods. Improvements in food production, distribution, and consumer behavior can favorably impact health behaviors, such as reducing calorie consumption and increasing fruit and vegetable intake.

SourceAmerican Heart Association·JournalCirculation·DateApr 29, 2019

NASA looks at Tropical Storm Fani's rainfall rates

Tropical Storm Fani exhibited extreme rainfall patterns, with the heaviest downpours occurring south of its center circulation. GPM measurements showed hourly rainfall rates ranging from 1 inch (25 mm) in thunderstorm bands to 1.6 inches (40 mm) per hour in a localized area.

SourceNASA/Goddard Space Flight Center·DateApr 29, 2019

Researchers to help develop next-generation hybrid and electric vehicles

The project aims to reduce cost, weight, and volume of systems powering hybrid and plug-in electric vehicles while improving performance, efficiency, and reliability. Researchers will design silicon-carbide integrated circuits for power modules and develop methods for packaging and integrating these circuits with other components.

SourceUniversity of Arkansas·DateApr 29, 2019

Water creates traps in organic electronics

Researchers at Linköping University discover that water induces traps in organic semiconductors, reducing conductivity. Drying out the material improves performance, but reabsorption occurs if not done properly.

SourceLinköping University·JournalNature Materials·DateApr 29, 2019

Carthage's lead and silver resources during Punic wars

Researchers found elevated levels of lead in sediment cores from Utica, Tunisia, linked to tailings from lead-silver mining, which began around the middle of the 4th century BC. This discovery suggests that Carthage's North African territory provided a source of economic resilience during the Punic wars.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Economic inequality, income, and generosity

Researchers analyzed donating behaviors and found that lower income levels do not lead to increased generosity in regions with high economic inequality. The study contradicts previous findings that individuals with lower incomes are more charitable than those with higher incomes.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Potential biomarker for chronic fatigue syndrome

A study suggests that hyperosmotic stress can be used to diagnose ME/CFS, a condition characterized by persistent fatigue and other symptoms. The researchers developed a blood-based assay that measures changes in electrical impedance in response to plasma salt concentrations.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 29, 2019

Major findings help understand bacteria's 'superglue'

Researchers from La Trobe University and the University of Queensland discovered how UpaB protein in bacteria sticks to human body parts, enabling new anti-microbial development opportunities. The study provides fundamental science that could inform future solutions to the global problem of antibiotic resistance.

SourceLa Trobe University·JournalNature Communications·DateApr 29, 2019