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Science News Archive February 2020


Page 6 of 40

Hearing aids may delay cognitive decline, research finds

A promising new study by University of Melbourne researchers suggests that wearing hearing aids may delay cognitive decline in older adults. The study found significant improvements in executive function, working memory, and quality of life for participants aged 62-82 years with hearing loss.

Breaking down stubborn molecules

Scientists investigate microorganisms in the twilight zone of the ocean and find they can degrade recalcitrant organic compounds. The study provides insight into the ocean's carbon cycle and may help predict microbes' role in regulating it.

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.

Heart health problems in your 20s may affect brain health decades later

A study by Northwestern University found that people with better cardiovascular health in their 20s are more likely to have higher scores on thinking and memory tests, even after adjusting for education level. The researchers also found an association between better cardiovascular health and improved cerebral autoregulation.

Gold nanoparticles detect signals from cancer cells

A novel blood test using gold nanoparticles detects cancer-derived extracellular vesicles, enabling earlier diagnosis and better treatment tracking. The technology has been successfully tested on melanoma patients and shows promise as a potential complement to existing cancer imaging technologies.

Motion capture technology used to prevent falls in older people

A study using motion capture technology assessed the benefits of an exercise programme designed to reduce falls in older people. The programme aimed to build strength and increase mobility, resulting in improved joint angles and reduced fall risk. Participants showed increased confidence and ability to perform physical activities.

Comparing PFAS exposures in female firefighters and office workers

Researchers compared serum levels of poly- and perfluorinated substances (PFAS) in female firefighters and female office workers, finding higher levels of three compounds in firefighters. Firefighters had modestly higher levels of PFNA, PFUnDA, and PFHxS, with those using firefighting foam having even higher concentrations.

Meta Quest 3 512GB

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

ALS mystery illuminated by blue light

Researchers successfully reproduced key ALS symptoms in zebrafish using optogenetic TDP-43, a human protein that forms aggregates upon blue light exposure. The study reveals motor neurons may be damaged before TDP-43 aggregation, suggesting new avenues for ALS treatment.

Metals could be the link to new antibiotics

University of Queensland researchers have discovered 23 metal compounds with antibacterial and antifungal activity, selectively killing bacteria like MRSA but not human cells. The findings offer promise for outwitting bacterial resistance, as the new compounds may use different mechanisms than existing antibiotics.

Professor works to reduce fake news dissemination

Etesami aims to develop a platform that simulates human behavior in dynamic social networks like Facebook or Twitter. By analyzing data from these simulations, his team plans to build a richer model to predict and control the spread of false news.

Cognitive impairment after intensive care linked to long-lasting inflammation

Researchers at Karolinska Institutet in Sweden have discovered a link between cognitive impairment and lasting inflammation after intensive care. Elevated blood levels of HMGB1 protein were found in patients with post-intensive care syndrome (PICS), which can cause impairments in memory, attention, and problem-solving for years.

Hazardous waste or edible food?

A University of Vaasa researcher highlights the need for retailers to adopt creative solutions to reduce bread waste. By managing potential food waste, implementing marketing strategies, and engaging with staff, stores can minimize hazardous waste and meet the UN's Sustainable Development Goals.

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.

Bilingual mash ups: Counterintuitive findings from sociolinguistics

Researchers analyzed a massive corpus of spontaneous speech from French-English bilinguals, discovering that pronunciation is not a reliable indicator of linguistic proficiency. Contrary to stereotypes, many speakers often pronounce borrowed words in English-style, even when code-switching into their native language.

How big is the neutron?

Researchers at Ruhr-University Bochum have determined the neutron charge radius from lightest atomic nuclei using a more direct methodology, differing significantly from previous calculations. The new result corrects the previously assumed value for the size of a neutron.

Ohio State first in US to use new atrial fibrillation device

The Ohio State University Wexner Medical Center has successfully used a new atrial fibrillation device, achieving 100% pulmonary vein isolation without nerve injuries or serious side effects. The PFA technology uses pulsed electric fields to interrupt pathways and triggers in the heart, potentially becoming the standard tool for resolv...

Researchers discover second type of schizophrenia

A study published in the journal Brain found that nearly 40% of schizophrenia patients had brains similar to those of healthy people, highlighting a potential new subtype. The discovery could lead to more personalized treatment options by accounting for these differences.

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.

Elderly patients also benefit from kidney transplantation

A new study published in NDT found that elderly patients (older than 75 years) who received kidney transplants from similarly aged donors remained dialysis-free for the rest of their lives. The study's results suggest that transplantation is beneficial for this age group, with excellent graft survival rates.

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.

Poor cleaning can jeopardize sterilization of medical tools

A study published in Infection Control & Hospital Epidemiology found that poor cleaning prior to sterilization using vaporized hydrogen peroxide can lead to failure rates of up to 76 percent. Effective cleaning and removal of visible soil and microbial contaminants are crucial for optimal sterilization.

Complex local conditions keep fields of dunes from going active all at once

Research on dunes in northern China reveals that neighboring dunes can remain in different states despite similar climate conditions, complicating efforts to stabilize the dunes. The study found that changes are not always smooth and uniform, with some dunes remaining active while others become stabilized by vegetation.

Celestial hourglass

The Gemini Observatory has captured an exquisite image of the planetary nebula CVMP 1, also known as a celestial hourglass. This object is formed when a massive star undergoes a catastrophic explosion, leaving behind a hot core that energizes the ejected gases, causing them to glow and form the striking hourglass shape.

New bile discovery will rewrite textbooks

Scientists at Michigan State University discovered new bile acids produced by microbes in the gut, which expand our understanding of mammalian bile and its connection to gastrointestinal diseases. These novel acids are particularly abundant in people suffering from conditions like Crohn's disease and cystic fibrosis.

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.

Drinks with added sugars linked to lipid imbalance, which increases CVD risk

A new observational study published in the Journal of the American Heart Association found that drinking 12 ounces of sugary drinks more than once per day is linked to lower levels of HDL-C and higher levels of triglycerides. The study also found that regularly consuming sugar-sweetened beverages increases the risk of cardiovascular di...

Discovery of entirely new class of RNA caps in bacteria

Researchers have identified a new class of RNA caps in bacteria that play a crucial role in stress response and degradation under starvation conditions. These findings provide insight into the molecular mechanisms underlying environmental adaptation.

Apple iPhone 17 Pro

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

Mosaic evolution painted lorikeets a rainbow of color

Researchers analyzed 98 historic specimens to find that different plumage patches evolved independently through time, with face and head patches evolving for mate recognition and back and wing patches for camouflage. This 'mosaic evolution' explains the lorikeets' dazzling color diversity while avoiding predators.

New compounds thwart multiple viruses, including coronavirus

Researchers have developed compounds that can block the replication of similar coronaviruses and other disease-causing viruses. The compounds target a shared protein-cutting enzyme essential for viral replication, showing strong activity against some viruses like MERS-CoV.

Tax rule for industry rewards carbon capture

A US tax code rule expands a credit for companies capturing and storing CO2, driving demand for carbon capture technology. The 45Q rule rewards companies that reduce their CO2 emissions, spurring investment in pipelines and mature technologies.

Women firefighters face high exposure to toxic PFAS chemicals

A new study led by UC Berkeley researchers found that San Francisco women firefighters are exposed to higher levels of toxic PFAS chemicals than office workers. The study aims to document the risks faced by women firefighters and ensure they receive necessary protections for cancer prevention and compensation.

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.

McMaster researchers uncover hidden antibiotic potential of cannabis

Researchers at McMaster University have discovered a non-psychoactive cannabinoid called CBG that shows promising antibacterial activity against drug-resistant MRSA. The study found that CBG prevents the ability of bacteria to form biofilms and destroys preformed biofilms, targeting the cell membrane of the bacteria.

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.

Large exoplanet could have the right conditions for life

Astronomers at the University of Cambridge discovered a potentially habitable exoplanet, K2-18b, which is 2.6 times the radius and 8.6 times the mass of Earth. The planet's hydrogen-rich atmosphere may allow for liquid water to exist beneath its surface.

Scientists find link between genes and ability to exercise

Researchers identified a genetic mutation affecting cellular oxygen sensing and a patient's limited exercise capacity. The von Hippel-Lindau gene is fundamental for cells to survive in low-oxygen conditions, and its impaired functionality limits the patient's exercise capacity compared to those without the mutation.

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.

Can a new kind of power plant improve air quality, resilience?

Researchers at the University of Houston are developing a new power plant technology that can reduce emissions and improve grid resilience. The technology uses supercritical CO2 to generate electricity, making it an attractive option for storm-prone regions.

Explained: Why water droplets 'bounce off the walls'

A team of researchers from the University of Warwick has found an explanation for experimental observations that some water droplets bounce. The fate of a drop is determined by the height of a tiny air cushion created during collision, which can reach nanometres in scale.

Potential new heartburn drug studied at VUMC

A new study suggests that investigational drug IW-3718 can reduce the severity of heartburn symptoms in patients with treatment-resistant gastroesophageal reflux disease (GERD) when combined with a proton pump inhibitor (PPI). The study, conducted by Vanderbilt University Medical Center and Ironwood Pharmaceuticals, found significant r...

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.

Seagulls favor food humans have handled

New research shows that seagulls are more likely to peck at food that has been handled by humans. This suggests they use human actions when deciding what to eat. The study, published in Royal Society Open Science, also found that gulls' preference for food is not just based on the sight of food.

New pieces added to the molecular puzzle of rheumatoid arthritis

Walter and Eliza Hall Institute researchers have pinpointed immune cells called natural killer (NK) cells as an unexpected source of the inflammatory protein GM-CSF in rheumatoid arthritis. The discovery may indicate potential new therapeutic targets for reducing joint inflammation in this autoimmune disease.

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.

Heatwave exposure linked to increased risk of preterm birth in California

A new study by researchers at University of California San Diego identified a strong link between heatwave exposure and increased risk of preterm delivery. The study found that longer duration heatwaves were associated with the highest risk of preterm birth, while ambient humidity also played a role in exacerbating the issue.

New study shows the effects of obesity mirror those of aging

A recent study published in Obesity Reviews reveals that obesity can lead to premature aging, causing DNA damage, weakened immune systems, and increased risk of diseases like cancer, cardiovascular disease, and Alzheimer's. Researchers argue that obesity should be considered a form of premature aging.

MicroRNA regulates process vital to placenta growth in early pregnancy

Researchers at USF Health discovered how a large human non-protein coding gene regulates epithelial-to-mesenchymal transition, a process crucial for placental implantation and fetal growth. Activating this microRNA cluster inhibited EMT, while reduced expression led to increased invasion and tumor-like behavior.

Stanford scientists link ulcerative colitis to missing gut microbes

A study by Stanford University School of Medicine investigators found that patients with ulcerative colitis have depleted levels of secondary bile acids and Ruminococcaceae bacteria in their intestines. These findings suggest that supplementing or restoring these missing metabolites may effectively treat intestinal inflammation.

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.

Stimulating resonance with two very different forces

Parametric oscillators can be made to resonate when driven by high and low frequencies, a discovery that could improve our understanding of nonlinear systems in various fields. This is achieved through the tuning of the high-frequency driving force to match the low frequency, causing the system to exhibit resonance.