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Science News Archive 2023


Page 424 of 444

Fluke 87V Industrial Digital Multimeter

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

Polymer p-doping improves perovskite solar cell stability

Researchers developed a technique that introduces a phosphonic acid-functionalized fullerene derivative and a redox-active radical polymer to strengthen the perovskite crystal structure and increase conductivity. This approach improved the stability of perovskite solar cells, achieving efficiencies comparable to traditional solar cells.

How habanero peppers respond to stress

Researchers found that metabolite changes were most evident in ripe fruit, with nitrogen deficiency increasing some compounds and phosphorus deficiency decreasing diversity. Salinity threshold above which metabolites change was identified, which could impact harvested pepper resistance to pathogens.

Malformed seashells, ancient sediment provide clues about Earth’s past

Researchers studied ancient sediment and microfossils to understand the Ocean Anoxic Event 2 (OAE2), a significant environmental disruption that choked oxygen from oceans. The team proposes a new hypothesis for the Plenus Cold Event, which briefly interrupted intense greenhouse temperatures due to ocean acidification.

Apple iPhone 17 Pro

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

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.

An unprecedented look at colorectal cancer

A team at Harvard Medical School has created large-scale 2D and 3D spatial maps of colorectal cancer, layering molecular information on top of histological features. The maps reveal the interconnectedness of traditional isolated structures in colorectal cancer, allowing researchers to explore differences within individual tumors.

Low-impact human recreation changes wildlife behavior

A study found that human presence in Glacier National Park causes 16 out of 22 mammal species to change their movement patterns, using different areas or being more nocturnal. The researchers suggest that this effect is significant enough to impact population survival.

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.

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.

Researchers demonstrate co-propagation of quantum and classical signals

A new study shows that a quantum data channel and classical optical signals can co-propagate in the same fiber with low error rates, reducing the cost of implementing quantum key distribution. Researchers tested a commercial multiplexed QKD system on a wavelength-division multiplexing link and achieved a total data rate of 6 Tb/s.

Novel method for assigning workplaces in synthetic populations unveiled

Researchers in Japan have developed a novel method to assign workplace locations to individuals in synthetic populations, addressing a significant limitation of previous models. This breakthrough enables more accurate social simulations, which can be used to assess various social issues and inform policy decisions.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Average pregnancy length in the US is shorter than in European countries

A new study reveals that US pregnancies are shorter than those in England and the Netherlands, with average lengths declining by over half a week between 1990 and 2020. This finding suggests that reducing medical interventions during the birthing process could improve maternity care outcomes in the US.

New region-specific cortical communication channel

A new study reveals a novel cortico-thalamic connection that targets the thalamic reticular nucleus (TRN), which plays a crucial role in regulating inhibitory activity in the brain. The discovery provides insights into the neuronal basis of normal cognition and chronic neurological diseases linked to frontal cortex.

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.

Gut bugs control the body’s thermostat

A study led by Robert Dickson found that the gut microbiome plays a crucial role in regulating body temperature, both in health and during sepsis. The researchers discovered that certain bacteria from the Firmicutes phylum were strongly associated with increased fever response.

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.

Defects in mitotic and telomere function increase risk for sarcomas

Researchers identified 14 pathogenic variants in genes related to mitosis and telomere integrity, suggesting alterations in these processes are key to sarcoma predisposition. The study provides new biological insight into sarcoma development and could inform better genetic risk profiles for the disease.

UMD-led team deciphers comprehensive black-legged tick genome

A University of Maryland-led team deciphered the first comprehensive genome for a parasite responsible for transmitting Lyme disease and other serious infections. The researchers identified thousands of novel genes and new protein functions, including proteins associated with tick immunity and disease transmission.

Availability of recreational cannabis reduced demand for prescription codeine

A study by University of Pittsburgh and Cornell University scientists found that states with recreational cannabis laws saw a significant reduction in pharmacy-based codeine distribution. This reduction is promising from a public health perspective, as prescription opioid misuse contributes to thousands of overdose deaths annually.

Violence was widespread in early farming society, study says

New research suggests that violence and warfare were prevalent in many Neolithic communities across Northwest Europe during the period of farming adoption. Over 10% of skeletal remains from 180 sites dating back to 8000-4000 years ago showed evidence of weapon injuries, including blunt force trauma and penetrative injuries.

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.

Ionic liquids' good vibrations change laser colors with ease

Researchers at Brookhaven National Laboratory demonstrate a new color-shifting strategy that relies on interactions between lasers and vibrational energy in ionic liquids. The method offers an efficient and customizable approach to shift laser colors, with applications in science, industry, and medicine.

Approaching the terahertz regime

Scientists have created a new class of nonvolatile memory devices using antiferromagnets that can store stable memory states and read them incredibly quickly. This breakthrough could lead to faster memory devices with performance beyond the terahertz regime.

Turning a poison into food

Researchers at the Max Planck Institute for Marine Microbiology reveal how a specific enzyme, Fsr, converts sulfite into sulfide, allowing methanogens to grow safely on toxic substances. This discovery opens opportunities for biotechnological applications and provides insights into the evolution of these microorganisms.

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.

Study explores control options for black swallowwort

Researchers conducted a three-year field study to determine how black swallowwort responds to common controls. The study found that annual applications of glyphosate were effective in reducing aboveground biomass, but less effective in reducing cover and stem densities.

Specific immune response to Epstein-Barr virus discovered

A recent study found that people with a specific genetic variation have a lower risk of developing infectious mononucleosis after initial Epstein-Barr virus infection. The researchers identified an EBV-specific immune response as the cause and suggest it could be a target for vaccine development.

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 asthma at high risk for depression during the COVID-19 pandemic

A recent study published in Respiratory Medicine found that older adults with asthma are at high risk of depression during the COVID-19 pandemic. Approximately half of those with a pre-pandemic history of depression experienced a recurrence, while one in seven without a history of depression developed depression for the first time.

Geographic access to pediatric cancer care in US

Most children in the continental US have adequate access to pediatric cancer care, but disparities exist among racial and ethnic groups and in rural areas. Reducing these disparities requires innovative approaches such as expanding local facilities and partnerships with adult oncology centers.

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.

Dollar stores are growing as food retailers in the US

A new study from Tufts University finds that dollar stores have doubled their share in rural areas, with households headed by people of color and lower-income households relying heavily on them. The growth of dollar stores raises concerns about the nutritional value of their food offerings and potential displacement of local grocers.

Light shaped as a smoke ring behaves like a particle

Researchers report the discovery of photonic hopfions, a new family of 3D topological solitons with freely tunable textures and numbers. These structures exhibit robust topological protection, making them suitable for applications in optical communications, quantum technologies, and metrology.

Neural prosthesis uses brain activity to decode speech

Researchers have developed a machine learning model that can predict the word about to be uttered by a subject based on their neural activity. The model achieved 55% accuracy using six channels of data and 70% accuracy using eight channels, comparable to other studies requiring electrodes over the entire cortical surface.

500,000 missed out on blood pressure lowering drugs during pandemic

Researchers found that nearly half a million people missed starting medication to lower their blood pressure during the Covid-19 pandemic, leading to thousands of avoidable cardiovascular events. Identifying individuals who missed out on treatment could reduce these events by just over 2,700.

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.

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.

Bacterial electricity: Membrane potential influences antibiotic tolerance

Researchers at the University of Cologne discovered that bacterial membrane potential changes during biofilm formation, correlating with increased antibiotic tolerance. The study found characteristic patterns of polarization that evolve in space and time, which are linked to a change in oxygen availability.