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Science News Archive January 2017


Page 29 of 35

Model sheds light on inhibitory neurons' computational role

A new computational model reveals a winner-take-all operation is enabled by a configuration of inhibitory neurons. The model, developed by MIT researchers, uses theoretical computer science to prove that a specific arrangement of inhibitory neurons is necessary for the operation.

The fly reveals a new signal involved in limb growth

Researchers at IRB Barcelona identify a fundamental role of JAK/STAT signalling pathway in regulating limb development and growth. The study reveals three key functions of JAK/STAT in specifying wing formation and growth, with implications for understanding human congenital diseases.

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.

Has the Affordable Care Act reduced socioeconomic disparities in cancer screening?

A new study found that the Affordable Care Act (ACA) increased mammography use among all economic subgroups, including those with lower incomes. However, colonoscopy screening rates remained unchanged despite eliminating out-of-pocket expenses under the ACA. The findings suggest that other barriers to colonoscopy access may still exist.

New model predicts when people are willing to try new things

Scientists at UCL and dunnhumby developed a model to predict when people will try new products, analyzing purchase data from over 280,000 shoppers. The study found that shopping behavior is consistent across product categories, with individuals having individual 'exploration personalities' when they shop.

Apple iPhone 17 Pro

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

Why high-dose vitamin C kills cancer cells

Research at the University of Iowa shows that high-dose vitamin C selectively kills cancer cells by generating hydrogen peroxide, a reactive oxygen species. Cancer cells with low catalase activity are more susceptible to damage and death when exposed to high amounts of vitamin C.

Do exercise 'weekend warriors' lower their risks of death?

A study found that adults who performed the recommended amount of weekly physical activity in one or two sessions had lower risks for death from all causes, cardiovascular disease, and cancer. The risk reductions were similar among weekend warriors and insufficiently active adults.

Secret new weapon of insect-transmitted viruses exposed

Researchers at UC Riverside have identified a novel strategy for controlling viral diseases by targeting the interaction between a viral effector protein and a host hormone. The study found that the cucumber mosaic virus manipulates plants to release odors attractive to aphids, which transmit the virus.

Can big data yield big ideas? Blend novel and familiar, new study finds

A new study from Columbia Business School sheds light on the secret sauce to developing creative ideas, finding that a balance between novelty and familiarity makes an idea more creative. The researchers developed a tool that analyzes word combinations in real-time and recommends words to improve ideas.

Meta Quest 3 512GB

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

Hydropower in China impacts the flow of the Mekong River

The study reveals that Chinese hydropower operations have significantly altered the Mekong River's dry and wet season flows, affecting its ecological productivity. The changes in river flow have been particularly pronounced since 2014, with the Nuozhadu dam project having the largest impact on downstream Cambodia.

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.

Older adults with arthritis need just 45 minutes of activity per week

A study found that performing even a third of the recommended activity is beneficial for older adults with arthritis. Participants who achieved a minimum of 45 minutes of moderate activity, such as brisk walking, per week were 80% more likely to improve or sustain high function over two years.

New framework could help online addicts reduce their usage

A new model developed by researchers at Binghamton University uses cognitive dissonance to help individuals recognize their online addiction and reduce its effects. Increasing users' awareness of the consequences of their behavior can create discomfort, motivating them to exert self-control.

Fluke 87V Industrial Digital Multimeter

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

Catheter safeguards at hospitals reduce infections and save money, study shows

A recent study by Cedars-Sinai found that implementing rigorous catheter safeguards can significantly reduce bloodstream infections related to central venous catheters. The study, which analyzed data from 113 hospitals, showed a 57% reduction in infection rates while producing net savings of $1.85 million for each site over three years.

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.

Researchers reveal how cancer cells cope with genetic chaos

Two studies reveal that cancer cells can tolerate genetic mutations by inactivating the BCL9L gene and slowing down division to avoid mistakes, allowing them to thrive and evolve. This understanding may lead to new ways to target cancer cells and improve treatment efficacy.

Moralistic thinking on political left, right not so different

A new study reveals that liberals and conservatives share similar moral roots, particularly concerning sanctity, making constructive discussion challenging. The findings suggest a stalemate in the culture war due to each side considering certain issues as sacrosanct or fair for revision.

January/February 2017 Annals of Family Medicine tip sheet

The National Commission on Prevention Priorities releases updated rankings of clinical preventive services, identifying high-impact services for improving population health. The top three services are immunizing children, tobacco-use screening and brief intervention, and alcohol misuse screening with brief intervention.

How Spain achieved a remarkably high rate of deceased organ donation

The Spanish system has made organ donation a routine consideration when a patient dies, with professionals exploring patients' wishes regarding organ donation. The model's success lies in its coordination and organization, making it applicable to other countries with adaptations depending on the healthcare system and factors.

Apple Watch Series 11 (GPS, 46mm)

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

The strange double life of Dab2

Researchers have discovered that Dab2 controls a population of fat stem cells that slowly disappears with maturity. This finding may reinforce the importance of steering children away from high-fat diets and lead to new pharmaceutical strategies to combat childhood obesity.

Speeding up 19th century oil paintings

Lead acetate, combined with mastic resin and linseed oil, enabled artists to create quick-drying paint layers for the first time. This innovation allowed for faster production times, facilitating the development of modern styles in the 19th century.

Progesterone may be key to preventing recurrent miscarriage

A new study suggests that progesterone could be a key to preventing recurrent miscarriage in women who suffer multiple pregnancy losses. Researchers found that micronized plant-derived progesterone improved endometrial function and prevented pregnancy loss.

PKM2 promotes exosome release via phosphorylating SNAP-23

A research team at Nanjing University found that PKM2 promotes exosome release by phosphorylating SNAP-23, which controls the dock and release of secretory granules or exosome-containing multivesicular bodies. This study demonstrates for the first time that PKM2 plays an essential role in promoting tumor cell exocytosis.

NASA sees storms affecting the western US

A series of moisture-laden storms has affected the western US, including California and the Pacific Northwest, causing extreme rain events and blanketeting the region in snow. The National Weather Service is forecasting heavy snows and periods of rain with potential flooding or flash flooding along the West Coast.

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.

Most breastfed infants not receiving recommended vitamin D supplementation

A study found that only 55% of breastfed infants received the recommended daily vitamin D supplementation. Mothers preferred to supplement themselves, citing safety as their top concern. Higher doses of vitamin D could be incorporated into maternal supplementation routines to enrich breast milk and improve intakes in breastfed infants.

Short-lived greenhouse gases cause centuries of sea-level rise

Researchers find that methane and other short-lived greenhouse gases impact sea levels for hundreds of years after being cleared from the atmosphere, with some effects even more long-lasting. The study highlights the importance of understanding climate change duration and its consequences for coastal regions.

Exploiting the placebo effect can improve recovery of heart surgery patients

A new study found that patients given psychological support before heart surgery scored lower on disability tests, had better mental quality-of-life, and reported more physical activity. Personalized support appeared to have the greatest benefit, and a short-term intervention can be easily implemented in cardiac surgery units.

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.

Fixing overuse and underuse of medical care can improve health and save money

The 'Right Care Series' highlights the extent of overuse and underuse of healthcare services worldwide. Both issues are widespread and often coexist, causing harm to patients and wasting resources. By tackling these problems together, countries can achieve sustainable universal health coverage and ensure that healthcare is a human right.

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.

Indoor tanning study reveals surprising new at-risk group for skin cancer

A new study published in JAMA Dermatology found that non-heterosexual black male teens engage in indoor tanning at levels equal to those of heterosexual white females. This discovery highlights a surprising new group at risk for skin cancer, which may be linked to psychological distress and discrimination.

Is student debt responsible for 'boomeranging' among young adults?

A Dartmouth-led study published in Sociology of Education found that college completion rates, not student loan debt, are more strongly associated with the 'boomeranging' effect. Black youths who take on debt face a higher risk of returning home due to limited access to fair credit and economic strain.

Study characterizes key molecular tool in DNA repair enzymes

Researchers have characterized the critical function of the Zf-GRF domain in manipulating DNA during repair processes. The domain is essential for APE2 enzyme activity, enabling it to bind to single-stranded DNA and facilitate its 3'-5' resection.

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.

Parents purchase frozen dinners for more than convenience

A new study found that parents' motivation for buying prepackaged, processed foods goes beyond time savings. Nearly half of parents reported choosing frozen meals because their families enjoy them, while a quarter preferred the cost savings.

New research describes how bacteria resists 'last-resort' antibiotic

A UK-based international team of researchers has made a breakthrough in understanding the mechanism of mcr-1 gene-mediated resistance to colistin. They identified key features necessary for the protein that modifies bacterial surface to reduce colistin binding, and constructed computer models to block MCR-1 function.

Gut microbes and bird's breath from the U at #SICB2017

University of Utah researchers explore the connection between gut microbes and birds' unique breathing patterns. The team found that diverse gut microbes play a critical role in allowing herbivorous woodrats to process naturally occurring toxins, with promising implications for human health and animal husbandry.

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.

Zooplankton rapidly evolve tolerance to road salt

Researchers found that a common species of zooplankton can develop higher tolerance to road salt, which may help protect ecosystems from salt's impacts. This rapid evolution suggests that freshwater ecosystems possess some resilience amid rising deicing salt applications.

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.

New treatment for a rare form of encephalitis

Researchers have made significant progress treating anti-NMDA receptor encephalitis with a new regimen, including patients who previously did not respond. The treatment, which includes bortezomib, has shown to quickly improve clinical symptoms and reduce antibodies responsible for the disease.