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Science News Archive April 2015 - Page 26


Page 26 of 36

How many gold atoms make gold metal?

Gold nanoclusters of 102 and 144 atoms show distinct behavior, with smaller clusters acting like giant molecules and larger ones exhibiting metallic properties. These findings have significant implications for developing bioimaging and sensing technologies based on metal-like clusters.

SourceAcademy of Finland·JournalACS Nano·DateApr 10, 2015

Research could usher in next generation of batteries, fuel cells

Researchers at the University of South Carolina and Clemson University have discovered a way to improve the transport of oxygen ions in batteries and fuel cells. This breakthrough could lead to faster and more efficient energy conversion devices with significantly enhanced performance, increasing energy efficiency.

SourceUniversity of South Carolina·JournalNature Communications·DateApr 10, 2015
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.

Enzyme in cosmetic products can act as allergen via the skin

Researchers found that papain breaks down skin cell connections, leading to increased skin permeability and inflammation. The enzyme can still trigger allergic reactions even when its enzymatic function is blocked.

SourceUniversity of Veterinary Medicine -- Vienna·JournalJournal of Investigative Dermatology·DateApr 10, 2015

New material could boost batteries' power, help power plants

Researchers developed a material that acts as a superhighway for ions, making batteries more powerful and changing how gaseous fuel is turned into liquid fuel. The material also helps create membrane systems that purify gas mixtures, potentially replacing steam in fuel conversion processes.

SourceClemson University·JournalNature Communications·DateApr 10, 2015

Scientists a step closer to developing renewable propane

Researchers at the University of Manchester have created a synthetic pathway for biosynthesis of renewable propane, paving the way for its commercial production. The breakthrough uses an engineered enzyme variant to redirect microbial pathways, producing propane as a clean-burning alternative to fossil fuels.

SourceUniversity of Manchester·JournalBiotechnology for Biofuels·DateApr 10, 2015
Apple iPhone 17 Pro

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

Graphene looking promising for future spintronic devices

Researchers at Chalmers University of Technology have discovered that large area graphene can preserve electron spin over extended periods and communicate it over greater distances than previously known. This breakthrough has opened the door for developing faster and more energy-efficient memory and processors in computers.

SourceChalmers University of Technology·JournalNature Communications·DateApr 10, 2015

New guidance on contact precautions for hospital visitors

The Society for Healthcare Epidemiology of America has released new guidelines for contact precautions for hospital visitors, aiming to strike a balance between visitor and patient safety. The recommendations vary by pathogen type, with special considerations for immunocompromised visitors or those unable to practice good hand hygiene.

SourceSociety for Healthcare Epidemiology of America·JournalInfection Control and Hospital Epidemiology·DateApr 10, 2015
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.

What happens underground when a missile or meteor hits

Researchers at Duke University simulate high-speed impacts in artificial soil and sand, finding that materials get stronger when struck harder. This challenges previous models and may lead to better control of earth-penetrating missiles.

SourceDuke University·JournalPhysical Review Letters·DateApr 10, 2015

Accelerating universe? Not so fast

Researchers have found two groups of type Ia supernovae with different properties, hinting at a reevaluation of the universe's expansion rate and dark energy. The discovery uses combined observations from the Hubble Space Telescope and Swift satellite.

SourceUniversity of Arizona·JournalThe Astrophysical Journal·DateApr 10, 2015
Fluke 87V Industrial Digital Multimeter

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

NASA satellite image shows Joalane's beauty beyond compare

Tropical Cyclone Joalane is a tightly wound tropical cyclone with hurricane-strength winds, generating rough seas and heavy rainfall. NASA's satellite image captures the storm's eye and surrounding thunderstorms, revealing high cloud top temperatures that indicate heavy rainfall potential.

SourceNASA/Goddard Space Flight Center·DateApr 10, 2015

Society of Interventional Radiology Foundation bestows annual awards

The Society of Interventional Radiology Foundation recognizes innovators in interventional radiology with the Leaders in Innovation Award. Sharon Kwan receives the Dr. Gary J. Becker Young Investigator Award for her research on sublobar resection and thermal ablation for early-stage non-small cell lung cancer.

SourceSociety of Interventional Radiology·DateApr 10, 2015

NASA satellite sees a rooster in Tropical Cyclone Solo

Tropical Cyclone Solo, forming in the Coral Sea, is triggering watches in Solomon Islands due to its powerful thunderstorms and expected high winds. The storm's cloud top temperatures are as cold as 210 kelvin, potentially generating heavy rainfall.

SourceNASA/Goddard Space Flight Center·DateApr 10, 2015

Researchers test smartphones for earthquake warning

Researchers found that smartphones' GPS receivers can detect permanent ground movement caused by fault motion during large earthquakes. Crowd-sourced smartphone data can be used to build earthquake warning systems, providing early warnings to people in affected areas before strong shaking begins.

SourceU.S. Geological Survey·JournalScience Advances·DateApr 10, 2015
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.

'Warm blob' in Pacific Ocean linked to weird weather across the US

A long-lived patch of warm water off the West Coast has been wreaking havoc on US weather patterns, causing droughts, unusual fish sightings, and altering marine ecosystems. The study also explores its connection to the 'polar vortex' and finds a link between the Pacific Ocean's surface temperatures and extreme winter conditions.

SourceUniversity of Washington·JournalGeophysical Research Letters·DateApr 9, 2015

Gene loss creates eating disorder-related behaviors in mice

Researchers found that mice lacking the estrogen-related receptor alpha gene exhibit abnormal behaviors related to eating and social interactions. The study identifies ESRRA as a key gene contributing to the risk of anorexia nervosa, with implications for treating the disorder.

SourceUniversity of Iowa Health Care·JournalCell Reports·DateApr 9, 2015

New evidence for combat and cannibalism in tyrannosaurs

Researchers have discovered that the skull of a Daspletosaurus, a large tyrannosaurine dinosaur, suffered numerous injuries during life and also after death. The injuries included bites that healed, as well as those inflicted after death by another tyrannosaur, indicating evidence of combat between two large carnivores.

SourcePeerJ·JournalPeerJ·DateApr 9, 2015

York scientists lead study on new treatment for prostate cancer

Researchers at the University of York have found a potential new treatment for organ-confined prostate cancer using low-temperature plasmas. The study, published in the British Journal of Cancer, suggests LTPs may be a viable alternative to current radiotherapy and photodynamic therapy treatments.

SourceUniversity of York·JournalBritish Journal of Cancer·DateApr 9, 2015

Selenide protects heart muscle in the wake of cardiac arrest

Researchers at Fred Hutchinson Cancer Center found that administering selenide intravenously after cardiac arrest significantly protects heart tissue, reducing damage by 88%. The nutrient selenium is taken up by injured tissues and reduces inflammation and oxidative stress.

SourceFred Hutchinson Cancer Center·JournalCritical Care Medicine·DateApr 9, 2015
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.

You scratch his back, he scratches mine and I'll scratch yours

A new study by University of Toronto's Rotman School of Management found that executives in strong business networks are more likely to overpay their colleagues. The researchers conducted three experiments with 520 students and found that larger networks can lead to a greater tendency for deception.

SourceUniversity of Toronto, Rotman School of Management·JournalJournal of Economic Behavior & Organization·DateApr 9, 2015

New Waldenstrom's drug shows sustained benefit at two years

A new clinical trial results show that ibrutinib continues to control Waldenstrom's Macroglobulinemia, with a median overall response rate of 91% after 19 months of treatment. The disease shows sustained benefit in patients who survived for two years.

SourceDana-Farber Cancer Institute·JournalNew England Journal of Medicine·DateApr 9, 2015

A grateful heart is a healthier heart

Research published by the American Psychological Association found that gratitude was associated with better mood, sleep, and reduced inflammation in patients with asymptomatic heart failure. Writing down things for which they were thankful daily also showed reductions in inflammatory biomarkers and improved heart rate variability.

SourceAmerican Psychological Association·JournalSpirituality in Clinical Practice·DateApr 9, 2015
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.

New evidence supports success of fecal transplants in treatment of Clostridium difficile infection

Research demonstrates dynamic nature of fecal microbiota in FMT donors and recipients, with healthy changes sustained for up to 21 weeks after transplant. The study's findings have implications for the regulation of treatment and could influence the use of fecal transplants for a range of diseases associated with microbial imbalance.

SourceUniversity of Minnesota·JournalMicrobiome·DateApr 9, 2015

UCLA researchers deliver large particles into cells at high speed

Researchers created a highly efficient automated tool to deliver nanoparticles and other large cargo into mammalian cells at a rate of 100,000 cells per minute. This breakthrough enables new scientific research and potential medical applications, such as studying disease development and understanding cell responses.

SourceUniversity of California - Los Angeles·JournalNature Methods·DateApr 9, 2015
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.

Delicate magnolia scent activates human pheromone receptor

Researchers at Ruhr-University Bochum discovered that Hedione, a magnolia scent molecule, activates the human pheromone receptor VN1R1, triggering sex-specific brain activities. This effect differs from traditional olfactory perception and may be related to the release of sex hormones.

SourceRuhr-University Bochum·JournalNeuroImage·DateApr 9, 2015

Fires in Western Australia April 2015

In April 2015, NASA's MODIS instrument detected areas of high temperature indicative of bushfires in Western Australia. The fires were up to 24 hours old and occurred during the region's long dry summer, highlighting the region's fire-prone landscape.

SourceNASA/Goddard Space Flight Center·DateApr 9, 2015

The TRMM rainfall mission comes to an end after 17 years

The Tropical Rainfall Measuring Mission (TRMM) has ended its 17-year mission, providing critical rainfall data for tropical cyclone monitoring, flood detection, drought monitoring, and disease monitoring. TRMM's legacy lives on through the Global Precipitation Measurement (GPM) mission, which succeeds and improves upon the TRMM project.

SourceNASA/Goddard Space Flight Center·DateApr 9, 2015
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.

More food, low pollution effort gains traction

A group of scientists, economists, and agriculture experts is working together to develop sustainable farming practices that minimize environmental pollution. The goal is to increase food production while ensuring farmers can make a living and the environment remains healthy.

SourceUniversity of Maryland Center for Environmental Science·JournalJournal of Environmental Quality·DateApr 9, 2015

Golgi trafficking controlled by G-proteins

Researchers at UC San Diego School of Medicine discovered G proteins signaling on membranes inside cells, controlling Golgi trafficking and enzyme secretion. Inhibition of protein GIV was shown to delay enzyme secretion and inhibit key cancer-driving signals.

SourceUniversity of California - San Diego·JournalDevelopmental Cell·DateApr 9, 2015

A downward trend for new cases of pediatric melanoma

Researchers found a decrease in pediatric melanoma cases in the US from 2000-2010, with an overall decline of 12% per year. The number of new cases decreased in boys and adolescents, particularly those with good prognostic indicators.

SourceElsevier Health Sciences·JournalThe Journal of Pediatrics·DateApr 9, 2015

Make your home a home for the birds

A University of Illinois Chicago study found that a neighborhood's small yards have a greater impact on the variety of native birds than larger landscape features. The researchers identified bird-friendly landscaping features such as fruit-bearing trees and shrubs to increase bird diversity in backyards.

SourceUniversity of Illinois Chicago·JournalEcological Applications·DateApr 9, 2015
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.

Early physical therapy for low back pain reduces costs, resources

A study published in BMC Health Services Research found that early physical therapy following an initial episode of acute low back pain resulted in lower healthcare costs and reduced use of resources. Patients who received physical therapy within 14 days had significantly lower costs for advanced imaging, injections, surgery, and opioids.

SourceAmerican Physical Therapy Association·JournalBMC Health Services Research·DateApr 9, 2015

Stem cell disease model clarifies bone cancer trigger

A new stem cell disease model reveals how a protein known to prevent tumor growth in most cases may drive bone cancer when genetic changes cause its overproduction. The study focused on rare genetic disease Li-Fraumeni Syndrome, which increases the risk of many cancers, including osteosarcoma.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalCell·DateApr 9, 2015

The Lancet Diabetes & Endocrinology: Being underweight in middle age associated with increased dementia risk

Research published in The Lancet Diabetes & Endocrinology suggests that being underweight in middle age is associated with a higher risk of developing dementia. In contrast, obese middle-aged individuals are nearly 30% less likely to develop dementia than those of a healthy weight, contradicting previous research findings.

SourceThe Lancet·JournalThe Lancet Diabetes & Endocrinology·DateApr 9, 2015

Mutation causes mice to behave as if they have an eating disorder

A genetic mutation associated with an increased risk of developing eating disorders in humans has been found to cause obsessive-compulsive-like behaviors and social impairments in mice. The study identified estrogen-related receptor alpha as a contributing gene to the risk of anorexia nervosa or bulimia nervosa.

SourceCell Press·JournalCell Reports·DateApr 9, 2015
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.

UGA researchers find hormone receptor that allows mosquitoes to reproduce

UGA researchers have identified a hormone receptor that plays a key role in regulating female mosquito reproduction, enabling them to produce eggs after consuming blood. The discovery fills a major gap in understanding how mosquitoes reproduce and could potentially lead to strategies for controlling mosquito populations.

SourceUniversity of Georgia·JournalProceedings of the National Academy of Sciences·DateApr 9, 2015

Smithsonian's Panama debate fueled by zircon dating

New zircon dating evidence challenges accepted theories on the rise of the Isthmus of Panama and its impact on global climate change. The closure of the Central American Seaway is now dated to 13-15 million years ago, contradicting previous estimates.

SourceSmithsonian Tropical Research Institute·JournalScience·DateApr 9, 2015

Editing HIV out of our genome with CRISPR

UMass Medical School scientists are developing a novel technology using CRISPR gene editing to excise latent HIV virus from infected cells. The goal is to create a functional cure by precisely cutting the DNA of the latent virus out of an infected cell.

SourceUMass Chan Medical School·DateApr 9, 2015
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.

In the sea, a deadly form of leukemia is catching

Researchers discovered that cancerous tumor cells in soft-shell clams are contagious and can spread from one animal to another. The study found that the cancer originated from a single lineage of tumor cells and has persisted ever since.

SourceCell Press·JournalCell·DateApr 9, 2015

The most powerful learning 'tool'

Human beings learn from both statistical associations and communication, with communication playing a vitally important factor in the learning process. Infants as young as 18 months can learn to associate objects with actions through verbal and non-verbal cues.

SourceInternational School of Advanced Studies (SISSA)·JournalPLOS ONE·DateApr 9, 2015

Signal variability and cognitive performance in the aging human brain

Greater variability in neural activity may reflect more flexible information processing, supporting better cognitive performance in aging adults. Researchers found that greater BOLD variability was associated with improved memory and fluid intelligence tasks.

SourceBeckman Institute for Advanced Science and Technology·JournalPLOS ONE·DateApr 9, 2015

USC researcher plucks hair to grow hair

A USC research team led by Cheng-Ming Chuong has discovered that plucking hair in a specific pattern can trigger the growth of new hairs in mice. The study used quorum sensing to understand how the hair follicle system responds to injury and found that it recruits immune cells to secrete signaling molecules that promote hair growth.

SourceUniversity of Southern California - Health Sciences·JournalCell·DateApr 9, 2015
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.

Plasma flow damping observed due to stochastization of the magnetic field

Researchers at NIFS and Kyushu University have discovered a new mechanism that stops plasma flow when the magnetic flux surface is disturbed. This observation is significant for nuclear fusion research and has implications for understanding plasma behavior in the universe.

SourceNational Institutes of Natural Sciences·JournalNature Communications·DateApr 9, 2015

Who's a CEO? Google image results can shift gender biases

A new study found that Google image search results for CEO and other professions underrepresented women, affecting perceptions of professionalism and competence. The study suggests that image search algorithms should be changed to counter occupational stereotypes and raise awareness among designers.

SourceUniversity of Washington·DateApr 9, 2015