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Science News Archive February 2021


Page 41 of 45

Researchers create novel photonic chip

A digital-to-analog converter has been developed without leaving the optical domain, enabling high-speed data processing with low power consumption. This innovation has the potential to advance next-generation data centers, 6G networks, artificial intelligence and more.

Biomedical basis of the Barker hypothesis uncovered

A recent study published in Nature Communications has uncovered the biomedical basis of the Barker hypothesis, which suggests that infants with low birth weight are at increased risk of cardiovascular diseases and kidney disorders. The research team discovered that fetuin-A, a serum protein, plays a crucial role in fetal protective mec...

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.

At cosmic noon, puffy galaxies make stars for longer

Research reveals that galaxies with larger, 'puffy' disks continue to form stars over a longer period after cosmic noon. This is due to the cooler gas and lower influence of black holes, allowing for continued star formation. By studying galaxy disk size, astronomers can now accurately predict when star formation will cease.

Modeling the brain during pain processing

A new study published in EPJ B reveals that inhibitory interneurons make up 20% of the brain's circuitry required for pain processing. The researchers used graph theory to model the brain's complex networks, uncovering a specific configuration of interneurons crucial for modulating information transmission.

Sea level will rise faster than previously thought

Researchers have reevaluated sea level rise predictions, finding they may be too conservative. By comparing model simulations with historical data, the team found that the rate of sea level rise has been accelerating over the past 150 years.

Research news tip sheet: Story ideas from Johns Hopkins Medicine

Researchers at Johns Hopkins Medicine used autonomous AI to detect pediatric diabetic retinopathy in a study of 310 patients. The AI tool achieved high sensitivity, specificity, and diagnosability rates, leading to improved screening adherence and early diagnosis.

Apple iPhone 17 Pro

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

Child head injury guidelines created

The new guidelines cover patient triage, imaging, observation versus admission, transfer, discharge and follow-up to help clinicians diagnose and treat children's head injuries. They aim to reduce unnecessary exposure to radiation from CT scans while ruling out bleeding disorders.

UTEP researchers make discoveries to better understand SARS-CoV-2 virus

Researchers from UTEP and Howard University discovered valuable data comparing fundamental mechanisms of SARS-CoV and SARS-CoV-2 to better understand how these viruses attack the human body. They found that mutations make SARS-CoV-2 significantly more contagious and prone to cause serious infections.

Breast cancer-on-a-chip for testing immunotherapy drugs

Researchers at Terasaki Institute for Biomedical Innovation have developed a breast cancer-on-a-chip system to test immunotherapy drugs. The chip enables high-volume testing of immunotherapeutic drugs against tumor cells, allowing for the rapid screening of potential treatments.

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.

Coral decline -- is sunscreen a scapegoat?

Recent studies suggest organic UV filters in sunscreens may harm coral reefs, but evidence is limited and inconclusive. Researchers recommend further field and lab studies to assess environmental risk and develop a coral environment risk assessment framework.

Research finds COVID plasma donation is fuelled by kindness

A study by University of Nottingham researchers found that people donate Covid-19 plasma because they want to show gratitude for surviving the virus and feel morally obligated to help others. The main barrier to donating was a fear of needles, with generic fears also playing a significant role.

Scientists advocate breaking laws - of geography and ecology

Researchers introduce metacoupling, an integrated approach that considers local and global scales to tackle environmental crises. The framework allows scientists to view the world as it truly is, with human actions influencing nature across space and time.

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.

Potential drug target found for treating rare genetic disorder in children

Researchers discovered a potential treatment approach for Hutchinson-Gilford progeria syndrome by blocking the ICMT protein, which improves affected cells without hindering growth and division. The study found that treating HGPS cells with C75, an ICMT inhibitor, delays cell deterioration and stimulates growth.

Hydrogen-producing enzyme protects itself against oxygen

Researchers discovered a unique molecular mechanism in CbA5H that shields the catalytic cofactor from oxygen attack, allowing it to repeatedly survive and resume activity. This protective function is provided by a thiol group binding directly to the substrate coordination site of the catalytic cluster.

Deep Vision: Near-infrared imaging and machine learning can identify hidden tumors

Researchers have developed a technology that uses near-infrared hyperspectral imaging (NIR-HSI) along with machine learning to visualize tumors in deep tissue and covered by a mucosal layer. The technique was tested on 12 patients with confirmed cases of gastrointestinal stromal tumors (GISTs), achieving an accuracy of 86% in identifyi...

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.

Supercomputer in your bedroom

University of Sussex researchers develop a method to turbocharge desktop PCs, allowing for large-scale brain simulations with significant sustainability benefits. This innovation makes it possible for more researchers worldwide to carry out research on brain models, including the investigation of neurological disorders.

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.

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.

Snake micro scales reveal secrets of sidewinding and slithering

Researchers discovered a unique microstructure on the bellies of sidewinding snakes, which improves performance when using lateral undulation for movement. The findings shed light on the functionality of these structures and their role in convergent evolution.

Generation of conjunctivae in a dish

Researchers from Osaka University successfully generated functional conjunctival tissue in a dish, enabling the study of conjunctivae and the development of novel drugs for dry eye disease. The newly formed tissue contained goblet cells that produce mucins, mimicking human conjunctival biology.

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.

Could playing host to hookworms help prevent ageing?

A growing body of evidence suggests that losing helminth parasites could contribute to aging-associated inflammation. Intentional infection with helminths or helminth-derived proteins may have anti-inflammaging properties, potentially preventing age-related diseases such as heart disease and dementia.

The underestimated mutation potential of retrogenes

A new study reveals that retrogenes, which are inserted into the genome via reverse transcription of mRNA molecules, can have a profound impact on genetic diversity. These retrogenes can act as regulatory mutations, negatively influencing the original gene's mRNA and causing harm to organisms.

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.

Study finds recommended ICU sedatives equally safe, effective

A new study published in the New England Journal of Medicine found that dexmedetomidine and propofol are equally effective and safe for light sedation in critically ill patients. The study, which enrolled 422 adults with sepsis, found similar patient outcomes between the two sedatives.

Venus flytraps found to produce magnetic fields

A team of scientists has found that Venus flytrap electrical signals generate magnetic fields, detected using atomic magnetometers. The magnetic signals are weak, but comparable to human nerve impulse signals.

Celestron NexStar 8SE Computerized Telescope

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

Study challenges ecology's 'Field of Dreams' hypothesis

Researchers tested the 'Field of Dreams' hypothesis, finding plant diversity has limited effects on animal biodiversity. Management strategies, such as controlled burns and bison reintroduction, had stronger impacts on animal communities.

Improving photosynthesis: our best bet to create a food secure world

Researchers at the ARC Centre of Excellence for Translational Photosynthesis are developing crop plants with improved photosynthesis, aiming to increase Australian cereal crop production and address climate change. The center has identified promising germplasm lines and published over 300 scientific papers on the topic.

Sub-surface imaging technology can expose counterfeit travel documents

Optical coherence tomography (OCT) technology has been successfully used to distinguish between legitimate and counterfeit travel documents. The study found that OCT can perform quantitative, non-destructive, high-resolution sub-surface analysis of multi-layered identification documents with a high imaging throughput and density.

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.

The secrets of 3000 galaxies laid bare

The SAMI survey has revealed the internal structures of galaxies, showing how they interact and grow over time. The study provides insights into the forces that shape galaxy evolution, including the role of supermassive black holes.

Biosensors require robust antifouling protection

Despite advances in biosensor antifouling approaches, further development is needed to increase our arsenal of robust antifouling protection methods. Researchers have developed various techniques such as physical barriers, chemical treatments and selective membranelike coatings to protect biosensors from fouling.

Novel 3D printed stents deliver breakthrough treatment for oesophageal cancer

Researchers at the University of South Australia have developed a new 3D printed oesophageal stent that contains an active pharmaceutical ingredient, allowing for sustained anti-cancer medication delivery directly to the cancer site. This technology has the potential to revolutionize treatment for patients with oesophageal cancer.

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.

How plants stabilize their water pipes

Researchers used genetic engineering to make Arabidopsis thaliana cells form xylem and secondary cell walls, allowing them to observe the formation process. The study revealed that microtubules play a key role in forming patterns, and a protein complex called KATANIN is involved in the timely and orderly formation of secondary walls.

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.

Sea ice kept oxygen from reaching deep ocean during last ice age

Researchers found that extensive sea ice prevented oxygen from reaching the deep ocean during the last ice age, contradicting previous assumptions. The study suggests that disequilibrium between surface and atmospheric oxygen levels played a crucial role in the ocean's carbon cycle.

Extreme UV laser shows generation of atmospheric pollutant

Researchers from Hokkaido University have found that ultraviolet light reacts with nitrophenol to produce atmospheric nitrous acid, a key component of photochemical smog. This decomposition process occurs in real-time and involves the distortion of the nitrophenol molecule's shape under extreme UV light.