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Science News Archive October 2019


Page 19 of 47

Resistance to last resort drug arose in patient over 3 weeks

Researchers discovered a single nucleotide mutation in P. aeruginosa that caused rapid resistance to ceftolozane-tazobactam and partial resensitization to carbapenems and piperacilline-tazobactam. This finding may enable the use of these antibiotics in treating extremely drug-resistant P. aeruginosa cases.

Magneto-inertial fusion experiment nears completion

The Plasma Liner Experiment is testing a novel plasma fusion concept while providing insights into the physics of colliding plasma jets. Experiments are also helping to validate simulations crucial for understanding and developing other controlled fusion schemes.

Apple iPhone 17 Pro

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

Lead poisoning reduced with safer mining practices

A pilot program introducing safer mining practices in Nigerian gold mining communities has reduced blood lead levels among miners by 32%. The study, published in the British Medical Journal Occupational and Environmental Medicine, also found that women miners experienced lower reductions in lead levels. The project's success demonstrat...

Taking a new tangent to control pesky waves in fusion plasmas

Researchers at Princeton Plasma Physics Laboratory developed new mathematical tools to forecast when waves will cool plasma and quench fusion reactions. A second beam injected at a different angle can suppress the effect of waves, providing new methods for maintaining plasma confinement.

Images offer most detailed glimpse yet into how skin senses temperature

Columbia University researchers have captured the most detailed images yet of a temperature-sensing molecule in its open, intermediate, and closed states. The findings will help us understand the mechanics of hot and cold sensation, which could accelerate the development of drugs for inflammatory skin disease, itch, and pain.

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.

GenBank can be trusted

A recent study analyzed over 4.7 million mtDNA sequences from GenBank and found fewer errors than predicted, with less than 1% of sequences mislabeled. The researchers identified potential sources of error, such as human or lab animal contamination, but overall found GenBank to be a reliable tool for environmental DNA identification.

Fathers are 'cautionary tales' about health for some adults

A study found that mothers have a positive influence on adult children's health, while fathers are often seen as 'cautionary tales' about poor health behaviors. Mothers tend to be supportive and available when needed, whereas fathers may encourage unhealthy habits.

American Indians may have a higher risk for irregular heartbeat

Researchers found that American Indians experience a higher risk of atrial fibrillation (AFib) than other racial and ethnic groups. The study analyzed 300,000 new cases of AFib in California residents between 2005 and 2011, revealing that American Indians had an average of 7.5 AFib cases per year per thousand patients.

NASA finds Typhoon Bualoi rapidly intensified

Typhoon Bualoi rapidly intensified over 24 hours, developing an eye and powerful thunderstorms. The storm's organization and strength were assessed using satellite imagery provided by NASA-NOAA's Suomi NPP satellite.

Celestron NexStar 8SE Computerized Telescope

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

Novel method turns any 3D object into a cubic style

A new method enables automatic replication of detailed 3D shapes in a digital environment, overcoming the challenge of replicating cube-style shapes. The algorithm captures realistic cubic style and allows users to create new shapes resembling the input shape.

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.

Changing El Niño properties

Researchers report a shift in El Niño onset from the eastern Pacific to the western Pacific, leading to more frequent and intense extreme events. Climate models predict further intensification under anthropogenic climate change.

Brain hemorrhage detection by artificial neural network

Researchers developed a neural network, PatchFCN, trained on 4,396 CT scans to detect brain hemorrhage abnormalities with accuracy similar to human experts. The algorithm achieved high accuracy and pixel-level delineation, classifying abnormalities into different pathological subtypes.

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.

Exploring the effect of fasting on age-related diseases

A research team has identified a novel caloric restriction mimetic, 3,4-dimethoxychalcone, which induces autophagy and promotes longevity. The substance may prove useful in treating age-related diseases such as cardiovascular disease and cancer.

Civil unrest and Ebola control

Conflict events repeatedly reversed a declining phase of the Ebola epidemic in the Democratic Republic of Congo, according to researchers. Vaccination effectiveness was severely impacted by preceding unrest and subsequent conflict events, dropping from 52% to 4.8%.

Advances in transcriptomics give single cell views of brain development and disease

New approaches in transcriptomics are providing single cell views of brain development and disease, including cellular processes associated with addiction and degeneration. These studies highlight the potential of transcriptomics to probe molecular changes within brain cells during normal development or diseases such as Alzheimer's and...

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.

£4m study investigates impact of climate change on Antarctic ice sheet

A £4 million EU-funded study is investigating the likelihood of abrupt changes in Antarctica's ice sheets, which could lead to a large and irreversible rise in global sea levels. The researchers aim to assess the chances of Antarctica's ice sheets entering an unstable retreat caused by thinning or disappearance of ice shelves.

Deepest look yet at brewer's yeasts reveals the diversity harnessed by humans

Researchers have discovered seven distinct combinations of yeast species in bottles of beer, wine, and cider, highlighting the complexity of brewing traditions. The study found that some yeasts were hybrids of as many as four species, and that specific genetic traits contribute to the characteristics of fermented beverages.

Closures affect 1 in 8 pharmacies in the US

A study by researchers at the University of Illinois Chicago found that one in eight pharmacies in the US closed between 2009 and 2015. Independent pharmacies in urban areas are disproportionately affected, with nearly half closing due to lack of access to preferred pharmacy networks and 340B contracts.

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.

Island retreat: Fuel injection helps reduce magnetic island instabilities

Researchers have discovered that injecting frozen hydrogen fuel pellets into a fusion reactor's plasma can help repair tears in the surrounding magnetic field, reducing magnetic island instabilities. This approach may improve the efficiency of future fusion power plants by freeing up resources needed for magnetic stability.

Repurposing heart drugs to target cancer cells

Researchers have identified a new set of senolytic drugs that can selectively eliminate senescent cells, including those triggered by cancer and irradiation. These compounds, such as ouabain, are repurposed from existing heart medications to treat various diseases, including leukemia and lymphoma.

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.

It really was the asteroid

A new study has confirmed that a massive asteroid impact led to the extinction of dinosaurs and much of life on Earth. The impact caused rapid ocean acidification, which lasted for tens of thousands of years before life forms recovered and the carbon cycle reached a new equilibrium.

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.

Much of the earth is still wild, but threatened by fragmentation

A recent study reveals that half of the Earth's land surface remains relatively wild, but fragmented into small pieces, posing a threat to their future. The report identifies high-priority areas for protection, including remote boreal forests and tropical rainforests.

The secret of classic Belgian beers? Medieval super yeasts!

A team of scientists discovered that classic Belgian beers, including Gueuze and Trappist ales, are fermented with rare hybrid yeasts combining DNA from traditional ale yeast and stress-resistant feral yeasts. This unique adaptation allows for better fermentation capacity and special aromas.

Scientists pioneer new way of finding cancer-causing germs

Researchers developed a new approach to detect bacteria and viruses associated with cancers. By sequencing genomic data from tumors, they can identify pathogens linked to diseases such as stomach cancer and cervical cancer. The method holds promise for developing new cancer vaccines in the future.

Defining the centromere

Researchers from the Leibniz Institute of Plant Genetics and Crop Plant Research have discovered a chaperone protein that affects CenH3 loading to centromeres, crucial for kinetochore assembly. This finding has potential applications in plant breeding, particularly in haploid induction, which can speed up breeding processes.

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.

Analysis of US pharmacy closures

Pharmacy closures in the US are becoming increasingly common, with significant implications for patient access to essential medications and care. The research letter highlights several risk factors associated with closure, including demographic changes, consolidation of pharmacies, and regulatory issues.

AI rivals expert radiologists at detecting brain hemorrhages

A new AI algorithm developed by UCSF and UC Berkeley outperformed two out of four expert radiologists in detecting tiny brain hemorrhages on head scans. The algorithm achieved exam-level accuracy, tracing detailed outlines of abnormalities within the brain's three-dimensional structure.

Song-learning neurons identified in songbirds

A study published in PNAS reveals that corticobasal ganglia projecting neurons play a crucial role in song learning during juvenile development. In contrast, adult birds with disrupted projection neurons maintain their pre-learned song structure and exhibit normal vocal fluctuations.

Cell stiffness may indicate whether tumors will invade

Researchers found that cells on a tumor's periphery are softer and more likely to invade surrounding tissues. This softness enables the cells to spread through the body's vasculature, forming 'invasive tips' that break away from the tumor.

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.

Impact: 60 years of shock wave research at Sandia National Laboratories

Shock wave physics studies material behavior under tremendous forces, with applications to nuclear and conventional weapons, astrophysics, and material synthesis. Sandia's achievements in shock wave science include the construction of the world's largest high frequency electromagnetic wave generator.

Gene variants influence size of brainstem, other structures

Researchers discovered 48 genetic variations associated with brainstem and subcortical structure volumes, including those related to diseases like Alzheimer's and Parkinson's. The study's findings may lead to novel drug targets for treating these conditions.

How the brain dials up the volume to hear someone in a crowd

A team of neuroengineers at Columbia University has uncovered the steps that take place in the brain to pick out one voice from among many. The auditory cortex, the brain's listening center, decodes and amplifies one voice over others at lightning-fast speeds, with two areas, Heschl's gyrus (HG) and superior temporal gyrus (STG), playi...

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.

Mystery solved: Ocean acidity in the last mass extinction

A Yale University study reveals that the Cretaceous-Paleogene extinction event was triggered by a sharp drop in ocean acidity, leading to the demise of marine calcifiers and a 50% decline in species productivity. The research provides new insights into the recovery of marine life after the event.

Waste plastic converted into filtration membranes

The KAUST team developed porous membranes from recycled poly(ethylene terephthalate) (PET), reducing the energy used in chemical separation processes. The membranes can withstand high temperatures and separate molecules of different sizes.

Gimme six! Researchers discover aye-aye's extra finger

Researchers have discovered a tiny, fully functional extra finger in the aye-aye's hand, which is believed to aid in gripping and mobility. The pseudothumb is composed of both bone and cartilage and has three distinct muscles that enable movement and force.

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.

A star is born: Using lasers to study how star stuff is made

Scientists at NIF recreate stellar-like conditions to study nucleosynthesis reactions, including the 3He-3He reaction responsible for nearly half of our sun's energy generation. Preliminary results show that protons from this reaction have been observed in these experiments at lower temperatures.

Twin study shows what's good for the heart is good for the brain

A recent twin study published in the Journal of Alzheimer's Disease found a strong correlation between good cardiovascular health and improved cognitive function. The research suggests that adopting an ideal lifestyle with low CVH scores may not only reduce heart disease but also lower dementia risk.