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Science News Archive 2021


Page 305 of 510

Shrinking planets could explain mystery of universe's missing worlds

Researchers investigating the 'radius gap' in exoplanet sizes found that younger mini-Neptunes shrink drastically over billions of years, leaving behind solid cores and becoming super-Earths. As planets age, their gas is stripped away, shifting the radius gap between rocky super-Earths and larger, gas-shrouded planets.

Early biomarker warning of heart disease for diabetic patients

Researchers at Newcastle University discovered that tiny pieces of genetic material, miR-424-5p, increase in early stages of heart disease in type 1 diabetes patients. This biomarker has the potential to define additional therapeutic options to help patients with type 1 diabetes.

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.

Left atrial appendage occlusion associated with low rate of stroke

The study analyzed over 36,000 LAAO procedures performed with the WATCHMAN device in older, higher-risk patients with atrial fibrillation. At one year, the estimated 1.53% ischemic stroke rate was lower than predicted by stroke risk scores, suggesting effective stroke prevention.

Simple surgery prevents strokes in heart patients

A large international study led by McMaster University found that removing the left atrial appendage significantly cuts the risk of strokes by more than one-third in patients with atrial fibrillation. The procedure is simple, quick, and safe for the majority of heart surgery patients with this condition.

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.

Apixaban not superior to standard care after TAVR

Researchers found that apixaban reduced blood clot formation around implanted valves with no increased bleeding risk. However, a subset of patients showed higher rates of non-cardiovascular death without anticoagulation indication.

Climate change threatens one-third of global food production

New research by Aalto University warns that climate change could push a third of global food production out of safe climatic space if greenhouse gas emissions continue growing unchecked. The study assesses the impact of climate change on crop production and livestock, highlighting regions most vulnerable to changes.

New research will improve safety and quality of Heparin

A new analytical approach for detecting contaminants in Heparin has been developed, increasing sensitivity by over 100 times and reducing analysis time and material requirements. This technique has the potential to improve the quality and safety of the widely used anticoagulant drug.

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.

Building a foundation for high-power tech

Researchers at the University of Pittsburgh are working on new soft magnetic materials and manufacturing processes to enable ultra-high frequency power electronics switching devices. The four-year project aims to establish a foundation for ultra-wide bandgap semiconductor materials in novel power electronics switching devices.

The eyes offer a window into Alzheimer's disease

A new study reveals that retinal scans can identify early signs of Alzheimer's disease by detecting changes in blood vessels associated with the APOE4 gene. The research provides a potential path forward for early detection and treatment of neurodegenerative diseases.

Bio-inspired scaffolds help promote muscle growth

Rice University bioengineers have created electrospun scaffolds from decellularized skeletal muscle that mimic native tissue and direct the growth of myotubes. The tunable scaffolds promote muscle regeneration with minimal crosslinking agents, offering a promising solution for reconstructive surgeries.

Is the past (and future) there when nobody looks?

Researchers investigate the limits of quantum theory in describing an observer's experience, leading to a 'no-go theorem' for the persistent reality of Wigner's friend perception. The study challenges traditional assumptions about the nature of reality and raises questions about the reliability of an observer's predictions.

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.

Scientists rewrite the genesis of mosquito-borne viruses

Researchers have discovered a misinterpreted model of immature flavivirus particles, revealing an unexpected organisation that could lead to new and better vaccines. The study's findings define the exact wiring of the immature virus before it becomes infectious, providing a solid foundation for designing tomorrow's treatments.

New immunotherapy 'highly effective' against hepatitis B

Scientists at UCL have identified a new immunotherapy that targets acyl-CoA:cholesterol acyltransferase (ACAT), an enzyme helping to manage cholesterol levels in cells. Boosting ACAT inhibition boosts specific immune cells fighting both the virus and cancerous tumours, demonstrating its effectiveness as an immunotherapy.

Apple iPhone 17 Pro

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

Maternal stress during pregnancy may shorten lifespans of male lizard offspring

A Penn State-led study found that maternal stress during pregnancy can shorten the telomeres of male lizard offspring, leading to decreased lifespan. The researchers discovered a sex-specific effect, where stressed mothers give birth to sons with significantly shorter telomeres, highlighting potential implications for human longevity.

New technology enables rapid sequencing of entire genomes of plant pathogens

A new technology has made it possible to quickly sequence the entire genome of plant pathogens, enabling faster diagnosis and identification of emerging pathogens. This breakthrough has great implications for the plant pathology field, allowing for more accurate identification of difficult-to-diagnose pathogens.

Yoga and breathing exercises aid children with ADHD to focus

Researchers at Ural Federal University found that yoga and breathing exercises can improve attention and reduce hyperactivity in children with ADHD. The studies involved 16 children aged six to seven years who received special classes, including diaphragmatic rhythmic deep breathing exercises.

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.

Genes associated with COVID-19 risk identified

Research identified specific genetic variants associated with COVID-19 risk, including the ABO gene and others like SLC6A20 and ERMP1. These variants can increase the chances of developing COVID-19, highlighting the importance of genetic factors in disease susceptibility.

New pre-clinical model could hold the key to better HIV treatments

Researchers developed a unique pre-clinical model of long-term HIV infection using subset of human CD4 cells, excluding those prone to attacking mouse tissue. The model showed that memory CD4 cells can be infected and killed by HIV or protected by anti-HIV drugs, paving the way for T-cell based therapies

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.

Few realistic scenarios left to limit global warming to 1.5°C

Only a few hundred climate scenarios avoid significantly overshooting the 1.5°C limit, according to a new study. All realistic scenarios require significant emission reductions and rely on multiple mitigation levers, including carbon removal and land use changes. The window for meeting the target is rapidly closing.

Cataloging breast cells to find cancer origins

The study created a comprehensive catalog of healthy breast tissue cells, enabling scientists to pinpoint the origin of abnormal changes. By tracking gene activity in over 15,000 cells, the team redefined healthy breast tissue and identified subpopulations with different responses to therapies.

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.

Living in redlined areas associated with lower lung function in those with asthma

Researchers found that individuals with asthma living in historically redlined neighborhoods have lower lung function than those in non-redlined areas. This association was independent of race and co-occurring diseases, suggesting that environmental factors play a significant role in worsening asthma outcomes in these communities.

Solar wind from the center of the Earth

Researchers from Heidelberg University found solar noble gases in an iron meteorite, indicating that solar wind particles encased in the Earth's core over 4.5 billion years ago. The discovery suggests a new perspective on the Earth's mantle and its geochemical development.

Pandemic boosts demand for postal delivery of abortion pill

Two studies published in Contraception found that telehealth abortion improves access to reproductive health services, particularly for low-income persons and those living in rural areas. The studies also showed that most patients prefer receiving abortion pills through the mail and interacting with healthcare providers via telehealth.

U-M researchers trace path of light in photosynthesis

Researchers at the University of Michigan have determined the first steps in converting light into energy for a type of bacteria that uses photosynthesis. By studying heliobacteria's reaction centers, they identified which pigments initially donate and accept electrons during charge separation.

Emergence of a new heteronanostructure library

A research team at USTC reports a new class of axial superlattice nanowires (ASLNWs) that enable large lattice-mismatch tolerance and vast material combinations. They achieve this by designing an axial encoding methodology for predictable, high-precision synthesis.

Meta Quest 3 512GB

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

New research optimizes body's own immune system to fight cancer

A groundbreaking study by University of Minnesota researchers shows how engineered immune cells can move faster and more effectively through tumors, improving cancer therapies for millions worldwide. The research uses advanced gene editing technologies to modify T cells, enabling them to recognize and destroy cancer cells.

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.

Fairness 'important - but not enough'

Researchers discovered that fair treatment alone is insufficient to foster a sense of value in groups; instead, recognizing individual talents and qualities provides a sense of inclusion while promoting mental health. This approach complements the idea of 'fitting in' by allowing individuals to stand out and feel valuable.

Fibre-optics used to take the temperature of Greenland Ice Sheet

Researchers used fibre-optic sensing to obtain highly detailed temperature measurements from the surface of the ice sheet to its base, revealing a heterogeneous temperature distribution. This finding contradicts previous theories and highlights limitations in current models, including those predicting global sea-level rise.

The chemistry of magnesium turned on its head

Researchers at FAU have discovered a new class of magnesium complexes in which the metal has a zero-oxidation state, forming elemental Mg in complex compounds. This discovery represents a landmark in the chemistry of magnesium and opens up new avenues for research into its unusual reactivity.

Above the noise

Scientists from Osaka University used machine learning methods to enhance signal-to-noise ratio in nanopore data, enabling higher precision measurements. The 'Noise2Noise' technique improved resolution of noisy runs, revealing faint features hidden by random fluctuations.

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.

Lundquist investigator research on mucormycosis, the deadly 'black fungus'

Researchers at the Lundquist Institute have discovered an antibody that can protect against mucormycosis, a deadly fungal infection with a high mortality rate. The humanized monoclonal antibodies are being manufactured by Vitalex Biosciences and aim to improve treatment outcomes for patients with COVID-19.

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.

Most pediatric spinal fractures related to not wearing seatbelts

A study published in Spine Journal reveals that most pediatric spinal fractures occur in motor vehicle accidents where seatbelts are not used. The majority of these injuries (63%) occur in teenagers aged 15-17, who are at highest risk for MVA-related spinal fractures. Wearing a seatbelt significantly reduces the risk of death and spina...

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.