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Science News Archive 2015


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.

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.

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.

Apple iPhone 17 Pro

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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'.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Fluke 87V Industrial Digital Multimeter

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

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.

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.

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.

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.

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.

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.

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.

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.

Celestron NexStar 8SE Computerized Telescope

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

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.

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.

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.

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.

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.

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.