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Science News Archive December 2020


Page 35 of 39

A new era is dawning in diagnosing sexually transmitted infections in men

A study published in PLOS ONE introduces a new flow cytometry method for diagnosing male urethritis, which is faster and more precise than existing methods. The study found that gonorrhoea causes the highest inflammatory reaction and bacterial count in urine, highlighting the potential of this technique for rapid screening.

Pilot whale study reveals copycat calls to outsmart predators

Researchers found southern Australian long-finned pilot whales can mimic killer whale calls and engage in 'duetting' with other whales, revealing a complex acoustic communication system. The study's findings raise questions about the extent of home ranges for these whales.

Apple iPhone 17 Pro

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

How hot is too hot for life deep below the ocean floor?

At a depth of 1,180 meters, temperatures of up to 120 degrees Celsius were reached, but microbial populations collapsed at around 45 degrees. Endospores, dormant cells of certain bacteria, increased rapidly and persisted in hot zones.

Research leads to better modeling of hypersonic flow

Scientists at the University of Illinois have developed a new way to model hypersonic flow, allowing for a better understanding of thermal protection systems and heat shields. The research uses quantum physics and machine learning to simulate the interactions between molecules and atoms in extreme environments.

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.

Cluster of Alaskan islands could be single, interconnected giant volcano

Researchers suggest a cluster of Alaskan islands may be part of a single, undiscovered giant volcano, with implications for understanding caldera-forming eruptions and the frequent explosive activity at Mount Cleveland. The proposed caldera would be even larger than Okmok and could have had significant global effects.

How to cool more efficiently

Researchers from the University of Barcelona, HZDR, and TU Darmstadt investigate the effects of simultaneously exposing alloys to magnetic fields and mechanical stress. They found that certain materials can boost their cooling efficiency by up to doubling it with commercially available neodymium permanent magnets.

Common pipe alloy can form cancer-causing chemical in drinking water

Researchers found that residual disinfectants in drinking water distribution systems react with chromium in iron pipes to produce carcinogenic hexavalent chromium. The study recommends reducing the use of pipes with high levels of chromium alloy and using a less reactive disinfectant.

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.

Meta Quest 3 512GB

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

Can we improve our health with doses of safe, live microbes on a daily basis?

A group of seven interdisciplinary scientists published a review paper highlighting specific gaps in the research on live microbes and health outcomes. They argue that there is only weak evidence to date confirming the link between live microbes and better human health, and propose a plan for quantifying this relationship.

Daily data from COVID app predicts local incidence and prevalence of virus

The study uses self-reported data from over 2.8 million users to provide accurate estimates of COVID-19 prevalence and incidence, detecting regional hotspots and informing policy makers on targeted testing capacity. The app's daily data release enables early detection of changes in incidence or prevalence.

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.

Outbreak investigation reveals "super-spreader" potential of Andes virus

A recent study published in The New England Journal of Medicine found that the Andes virus, carried by wild rodents, can cause severe respiratory disease in humans through extensive person-to-person contact. The outbreak in a small village in Argentina had the most extensive recorded human-to-human transmission of the virus to date.

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.

Blackcurrants are favorable for glucose metabolism

A new study from the University of Eastern Finland found that consuming blackcurrants after a meal can attenuate the rise and fall of blood glucose levels. The beneficial effect is attributed to berry-derived polyphenolic compounds, specifically anthocyanins, which slow down glucose absorption and reduce oxidative stress.

Gut microbiome snapshot could reveal chemical exposures in children

Researchers found bacteria that feed on toxic halogenated compounds, providing a potential mechanism for measuring exposure to semi-volatile organic compounds. The study suggests that certain SVOCs are correlated with the abundance of bacterial and fungal species in children's guts.

New compact model for gene regulation in higher organisms

Researchers propose minimal extension to classic equilibrium model, capturing high specificity and noise in eukaryotic gene expression. The new model suggests a trade-off between specificity and noise, with high specificity leading to increased noise.

Adaptive Image Receive (AIR) coil from GE shows promise for whole-brain imaging

A prototype 16-channel head AIR coil from GE Healthcare has been shown to perform better than a conventional 8-channel head coil for in vivo whole-brain imaging, but not as well as a 32-channel coil. The coil's lightweight and flexible design exhibits improved electrical characteristics that could lead to future design improvements.

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.

Red Sea turtle hatchlings are feeling the heat

Research by KAUST reveals that sand temperatures at Red Sea nesting sites have exceeded the pivotal temperature threshold of 29.2 degrees Celsius, leading to feminization of hatchlings and potential mass mortality.

Mapping quantum structures with light to unlock their capabilities

A new laser-based method allows researchers to map the electronic structures of crystals at room temperature, revealing potential capabilities for solar cells, LED lights, and artificial photosynthesis. The technique also enables the design of novel semiconductor-based quantum devices.

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.

Shuttering fossil fuel power plants may cost less than expected

According to a Georgia Institute of Technology researcher, shutting down fossil fuel power plants by 2035 may not require as many early closures as previously thought. By allowing existing plants to reach their typical lifespans, the cost of closure can be reduced and financial liabilities minimized.

Researchers discover how bean plants fend off famished foes

Researchers discovered that cowpea plants harbor receptors on their cells that can detect caterpillar saliva, triggering anti-herbivore defenses. The discovery sheds light on how plants activate their immune systems to defend against hungry insects.

Researchers developed a sequence analysis pipeline for virus discovery

Researchers from University of Helsinki developed Lazypipe to identify both known and novel viruses, demonstrating its efficacy in detecting SARS-CoV-2 without reference genome. The pipeline overcomes challenges in viral metagenomics, enabling rapid detection of emerging infectious diseases.

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.

Study finds 10 metabolites associated with risk of stroke

Researchers identified 10 metabolites associated with the risk of stroke, including a lower risk for ischemic stroke and higher risk for hemorrhagic stroke. Histidine and high-density lipoprotein cholesterols were found to have protective effects, while pyruvate increased the risk of ischemic stroke.

RUDN University professor suggested how to clean up space debris

A RUDN University professor suggested using a spacecraft-collector to remove space debris from lower orbits, which requires more complex equipment. For geostationary orbits, a tow-based approach is proposed, where the collector transports debris objects into the disposal orbit.

Sensor can detect scarred or fatty liver tissue

A new diagnostic tool has been developed by MIT engineers to detect both fatty liver disease and fibrosis, which can lead to liver failure. The sensor uses nuclear magnetic resonance (NMR) technology to measure water diffusion in tissue, revealing the presence of fatty or scarred tissue with high accuracy.

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.

Supernova surprise creates elemental mystery

A team of scientists from Michigan State University discovered that supernovae can forge carbon atoms over 10 times faster than previously thought. This finding challenges existing theories about the creation of Earth's heavy elements, particularly ruthenium and molybdenum isotopes.

Carbon dioxide converted to ethylene -- the 'rice of the industry'

A Korean research team has made a breakthrough in understanding the electrochemical conversion of CO2 to ethylene, a challenging process that could produce high-value-added chemicals. The study identified key intermediates and proposed copper hydroxide nanowire as a promising catalyst for enhancing selectivity.

Fluke 87V Industrial Digital Multimeter

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

Unmet job expectations linked to a rise in suicide, deaths of despair

Researchers found that men who expected to work in jobs without a college degree but faced declines in the job market were nearly three times as likely to suffer early deaths by suicide and drug poisoning. The study suggests closed pathways to sustaining working-class jobs contribute to increased rates of suicide and drug-poisoning mor...

Drinking blocks a chemical that promotes attention

Scientists at UT Health San Antonio found that acute exposure to alcohol inhibits norepinephrine release, a chemical that activates vigilance-dependent astrocyte calcium activation. This leads to impaired attention and motor coordination, contradicting the cerebellum's role in motor control.

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.

Cell membranes in super resolution

Scientists have created a method to expand lipids in cell membranes, enabling the imaging of proteins and organelles with unprecedented resolution. This breakthrough allows for detailed insights into bacterial infection mechanisms and potential therapeutic targets.

Oddly satisfying metamaterials store energy in their skin

Purdue University scientists have created a patterned sheet of domes that can store energy in its skin, enabling strong mechanical tasks and programmable data processing. The technology has potential applications in flexible robotics and mechanical computing, where energy storage and efficient processing are crucial.