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Science News Archive 2015 - Page 383


Page 383 of 402

The latest fashion: Graphene edges can be tailor-made

Researchers at Rice University have discovered a method to control the edge properties of graphene nanoribbons by manipulating the conditions under which they are pulled apart. This allows for the creation of semiconducting graphene with desirable electronic properties, opening up new possibilities for applications in modern electronics.

SourceRice University·JournalNanoscale·DateJan 23, 2015

Dragnet for epilepsy genes

An international team of scientists identified sestrin-3 as a key regulator of gene networks in human epilepsy. Inhibiting sestrin-3 reduced seizures in animal models. The discovery offers promising starting points for new treatments, potentially avoiding drug resistance.

SourceUniversity of Bonn·JournalNature Communications·DateJan 23, 2015

Arctic ice cap slides into the ocean

Researchers at the University of Leeds have observed a remote Arctic ice cap thinning by over 50 meters and accelerating to speeds of several kilometers per year. The findings suggest that warmer ocean temperatures may be triggering this rapid ice loss, which has significant implications for sea level rise.

SourceUniversity of Leeds·JournalGeophysical Research Letters·DateJan 23, 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.

Researchers make magnetic graphene

A team of physicists at UC Riverside created magnetic graphene by bringing it close to a magnetic insulator, preserving its electronic properties. This breakthrough has the potential to increase graphene's use in computers with more robust and multi-functional electronic devices.

SourceUniversity of California - Riverside·JournalPhysical Review Letters·DateJan 23, 2015

Silver nanowires demonstrate unexpected self-healing mechanism

Researchers at Northwestern University discovered that silver nanowires can partially recover from permanent deformation under cyclic loading, indicating potential for long-term durability in flexible electronics. This breakthrough has significant implications for the development of cost-effective alternatives to indium tin oxide.

SourceNorthwestern University·JournalNano Letters·DateJan 23, 2015

Scientists map brains of the blind to solve mysteries of human brain specialization

New research reveals that unexpected brain connectivity can lead to fast brain specialization, allowing humans to adapt to rapid technological and cultural innovations. Blind individuals using sensory substitution devices activate specialized brain areas for tasks such as reading and recognizing numerical symbols.

SourceThe Hebrew University of Jerusalem·JournalNature Communications·DateJan 23, 2015

Acute heart failure patients bounce back to ERs for complex reasons

A study assessed self-care barriers in acute heart failure patients returning to the ER. Common barriers include co-morbidities, physical disability, and knowledge about disease. Addressing these social determinants can improve patient outcomes and reduce readmissions.

SourceAmerican College of Emergency Physicians·JournalAnnals of Emergency Medicine·DateJan 23, 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.

Lucky charms: When are superstitions used most?

A study by Hamerman and Morewedge found that people rely on superstitious behavior to achieve performance goals, such as winning a game or getting good grades. However, this behavior does not affect learning goals, like mastering a musical piece.

SourceSociety for Personality and Social Psychology·JournalPersonality and Social Psychology Bulletin·DateJan 23, 2015

New brain pathway offers hope for treating hypogylcemia

Researchers have identified a novel brain pathway that produces the hormone cholecystokinin (CCK), which acts as a crucial sensor of blood glucose levels. The discovery may lead to new treatments for hypoglycemia and its side effects, particularly in patients who suffer from unawareness due to repeated bouts of low blood sugar.

SourceMichigan Medicine - University of Michigan·JournalNature Neuroscience·DateJan 23, 2015

Friends know how long you'll live, study finds

A new study from Washington University in St. Louis found that close friends can accurately predict an individual's lifespan based on their personality traits. Men rated as conscientious and women rated as emotionally stable by their friends had longer lifespans.

SourceWashington University in St. Louis·JournalPsychological Science·DateJan 23, 2015

LSU sociology professor researches the relationship between religion and educational attainment

A recent study by LSU sociology professor Samuel Stroope examines the relationship between religion and educational attainment in the US. The findings reveal that individual biblical literalism is negatively associated with college completion, while congregational biblical literalism has a sharp negative impact on non-literalists.

SourceLouisiana State University·JournalSociological Perspectives·DateJan 23, 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.

Mothers don't speak so clearly to their babies

New research published in Psychological Science suggests that mothers may speak less clearly to their infants than they do to adults. The study found that mothers tend to use cutesy words and a sing-song voice when talking to babies, but still pronounce sounds slightly less distinctly than when addressing adults.

SourceRIKEN·JournalPsychological Science·DateJan 23, 2015

Bad reputation of crows demystified

A recent study analyzing over 326 interactions between corvids and their prey found that they have a much smaller impact on other bird species than previously believed. In 81% of cases, corvids did not affect their potential prey, while in 6% of cases, some beneficial relationships were observed.

SourceSpanish Foundation for Science and Technology·JournalIbis·DateJan 23, 2015

The brain's electrical alphabet

Researchers found that the brain encodes part of the information at very fast time scales, with pulses transmitted over tens of milliseconds, and another part at slower timescales. The study demonstrated a new 'spike timing code' on a millisecond scale, complementing the existing 'spike rate code'.

SourceInternational School of Advanced Studies (SISSA)·JournalCurrent Biology·DateJan 23, 2015

Infrared imaging technique operates at high temperatures

Researchers at Northwestern University developed a new detector that can capture high-resolution mid-wavelength infrared images at room temperature, paving the way for applications in surveillance and disease detection. The technology has potential for vascular imaging and disease detection, particularly with images of the human body.

SourceNorthwestern University·JournalOptics Letters·DateJan 23, 2015
Apple iPhone 17 Pro

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

Researchers identify efficient methylating enzyme for cancer development

Researchers have discovered that highly efficient DNA methyl transferase 1 (DNMT1) enzymes found in cancer cells are responsible for the abnormal turning on and off of genes. The findings suggest that a drug targeting this enzyme may be beneficial for cancer treatment, potentially reducing cancer relapse.

SourceBoston University School of Medicine·JournalJournal of Proteomics & Bioinformatics·DateJan 23, 2015

Warming seas decrease sea turtle basking

Researchers found that green turtles tend not to bask when local winter sea surface temperatures stay above 23 degrees Celsius. The scientists project that global warming trends could lead to the end of beach basking globally by 2102, with Hawaii's green turtles possibly stopping by 2039.

SourceDuke University·JournalBiology Letters·DateJan 23, 2015

Tonal languages require humidity

Researchers found that tonal languages are more prevalent in humid climates, while simpler tone pitches dominate dry regions. The study suggests that humidity affects vocal fold elasticity and ion balance, making it easier to produce a wide range of tones.

SourceMax-Planck-Gesellschaft·JournalProceedings of the National Academy of Sciences·DateJan 23, 2015

MSU-led research finds cause for decline of Missouri River pallid sturgeon

A recent study by MSU-led researchers found that oxygen-depleted dead zones between dams in the upper Missouri River are directly linked to the failure of endangered pallid sturgeon hatched embryos to survive to adulthood. This is a major breakthrough in understanding the decline of this species, which can live up to 100 years.

SourceMontana State University·JournalFisheries·DateJan 23, 2015
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.

Research pinpoints new technique for producing cheaper solar energy

Researchers at the University of Exeter have identified a new material, perovskite, that can efficiently generate photovoltaic energy in various atmospheric conditions. This breakthrough has the potential to significantly reduce the costs of solar energy production.

SourceUniversity of Exeter·JournalSolar Energy Materials and Solar Cells·DateJan 23, 2015

Australopithecus africanus: Strong hands for a precise grip

Researchers found that Australopithecus africanus, a 3-2 million-year-old species from South Africa, had a human-like trabecular bone pattern in the hand bones consistent with forceful opposition of the thumb and fingers. This suggests that early humans used their hands to exert precision and power, similar to modern humans.

SourceMax-Planck-Gesellschaft·JournalScience·DateJan 23, 2015

Calculating the future of solar-fuel refineries

A new framework by UW-Madison engineers helps plot the future of solar fuels by accounting for general variables and big-picture milestones. The tool is designed to remain relevant as researchers experiment with new technologies and ideas, and can be adapted for other energy-related processes.

SourceUniversity of Wisconsin-Madison·JournalEnergy & Environmental Science·DateJan 23, 2015

Culprit identified in decline of endangered Missouri River pallid sturgeon

The study reveals that dam-induced changes in riverine sediment transport lead to reduced oxygen levels, causing hatched pallid sturgeon embryos to die. The research provides vital information for pallid sturgeon conservation and is a significant breakthrough in understanding the species' decline.

SourceU.S. Geological Survey·JournalFisheries·DateJan 23, 2015
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.

H.E.S.S. finds three extremely luminous gamma-ray sources

The High Energy Stereoscopic System (H.E.S.S.) has detected three powerful gamma-ray sources in the Large Magellanic Cloud, including a pulsar wind nebula and a supernova remnant. These discoveries provide new insights into the formation of cosmic structures and the evolution of galaxies.

SourceUniversity of the Witwatersrand·JournalScience·DateJan 23, 2015

Should hospitals keep cardiac catheterization labs open on weekends?

A Canadian study found that early invasive strategy using coronary angiography and interventions reduced costs and hospital stays for high-risk and low-risk patients with non-ST-segment elevation acute coronary syndromes. The study analyzed data from 479 patients, showing savings of $2,938 per patient compared to delayed strategies.

SourceElsevier Health Sciences·JournalCanadian Journal of Cardiology·DateJan 23, 2015

SLU scientist aims to improve antibiotics to treat staph infections

A SLU scientist has discovered an evolutionary mechanism used by bacteria to evade antibiotics like azithromycin. The discovery reveals a universal stalling mechanism, suggesting a way to improve existing drugs' effectiveness against antibiotic-resistant strains.

SourceSaint Louis University·JournalProceedings of the National Academy of Sciences·DateJan 23, 2015
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.

Sisters act together

Researchers studied the dispersal behavior of female and male cichlids in Lake Tanganyika. Females dispersed significantly longer distances than males, likely to avoid inbreeding and resource competition. Kin-shoaling also emerged as a key phenomenon, with small females tending to shoal with female siblings.

SourceUniversity of Veterinary Medicine -- Vienna·JournalOecologia·DateJan 23, 2015

Hidden infection shortens life

Researchers discovered that mild malaria infections in birds accelerated telomere shortening, leading to premature death. Infected individuals produced fewer offspring despite no visible symptoms.

SourceLund University·JournalScience·DateJan 23, 2015

New machine-perfusion organ preservation system keeps livers healthier for transplant

A new preservation system that uses machine perfusion keeps livers healthier for up to nine hours before transplantation, leading to better liver function and increased survival rates. The system has shown promising results in animal studies, with 100% of pigs surviving after receiving perfused livers.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalAmerican Journal of Transplantation·DateJan 22, 2015

Rosetta data give closest-ever look at a comet

The Rosetta mission provided the closest-ever look at comet 67P/Churyumov-Gerasimenko, revealing its structure, surface features, and composition. The study helps scientists understand how comets form and evolve over time.

SourceUniversity of Maryland·JournalScience·DateJan 22, 2015
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.

Reducing Myc gene activity extends healthy lifespan in mice

A study at Brown University found that reducing Myc gene activity increased the healthy lifespan of laboratory mice by 15%. The mice exhibited better health and organ function, with reduced signs of aging. The study's findings offer encouragement for developing cancer drugs targeting Myc and potential benefits for human health.

SourceBrown University·JournalCell·DateJan 22, 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.

How malaria-spreading mosquitoes can tell you're home

Researchers found that mosquitoes respond weakly to human skin odor alone and require a fluctuating concentration of carbon dioxide to land on human skin. This suggests that upwind flight towards human odor may be used to locate dwellings rather than feeding sites.

SourceUniversity of California - Riverside·JournalJournal of Chemical Ecology·DateJan 22, 2015

Low-income boys fare worse in wealth's shadow

New research from Duke University finds that low-income boys exhibit more antisocial behavior when living among affluent neighbors, while girls do not show a similar effect. The study suggests that neighborhood surroundings play a significant role in shaping the behavior of low-income children.

SourceDuke University·JournalJournal of Child Psychology and Psychiatry·DateJan 22, 2015

When it comes to variations in crop yield, climate has a big say

A new study found that climate variability historically accounts for one-third of yield variability for maize, rice, wheat, and soybeans worldwide. The equivalent of 36 million metric tons of food is lost each year due to climate-related crop yield fluctuations.

SourceUniversity of Minnesota·JournalNature Communications·DateJan 22, 2015
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.

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.

NSF projects offer research experience for undergraduates at UT Dallas

The Erik Jonsson School of Engineering and Computer Science at UT Dallas sponsors Research Experience for Undergraduates (REU) projects on software safety and surface engineering, providing students with $500/week stipends and state-of-the-art research experience. Participants often pursue advanced degrees and careers in STEM fields.

SourceUniversity of Texas at Dallas·DateJan 22, 2015

A first peek beneath the surface of a comet

Scientists report early measurements of comet 67P/Churyumov-Gerasimenko's subsurface temperature and gas production from the European Space Agency's Rosetta Mission. The team used NASA's Microwave Instrument on the Rosetta Orbiter to study heat transport, outgassing, and coma development.

SourceUniversity of Massachusetts Amherst·JournalScience·DateJan 22, 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.

These jellyfish aren't just drifters

Researchers tracked jellyfish movements with GPS loggers and observed their swimming direction to show they can actively swim counter-current in response to drift. The findings could help predict and avoid troublesome jellyfish blooms, improving management of these ocean ecosystems.

SourceCell Press·JournalCurrent Biology·DateJan 22, 2015

Using viruses to find the cellular Achilles heel

Two deadly viruses, hepatitis C and Kaposi's sarcoma-associated herpesvirus, were found to target common host proteins that are critical for human biology. By studying protein interactions between viruses and cells, scientists have identified potential new targets for anti-viral treatments.

SourceGladstone Institutes·JournalMolecular Cell·DateJan 22, 2015

Transoral fundoplication is an effective treatment for patients with GERD

A study found that transoral fundoplication was more effective in eliminating troublesome regurgitation than omeprazole in patients with persistent GERD symptoms. The procedure showed a lower failure rate and better safety profile compared to traditional surgery, making it a promising treatment option.

SourceAmerican Gastroenterological Association·JournalGASTROENTEROLOGY·DateJan 22, 2015
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.

Small drop in sea level had big impact on southern Great Barrier Reef

A new study reveals that a small variation in sea level can stall coral reef growth and sediment production, contradicting the long-held notion of continuous reef formation. The research found that most lagoon infilling occurred over just four thousand years before being 'turned off' by a relatively small sea level fall.

SourceUniversity of Sydney·JournalGeology·DateJan 22, 2015