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Science News Archive 2021


Page 5 of 510

Billions of starless planets haunt dark cloud cradles

Researchers found over 70-170 free-floating planets (FFPs) in the Upper Scorpius young stellar association, almost doubling the number of known FFPs. The sheer number suggests that planets formed around stars and then banished to darkness are an important contribution.

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.

ESO telescopes help uncover largest group of rogue planets yet

Astronomers used data from ESO's large telescopes and space-based facilities to spot tens of millions of sources in a wide area of the sky, identifying over 70 rogue planets comparable to Jupiter's mass. The discovery could provide clues on how these mysterious objects form, with further advances needed to study them in greater detail.

Exploring problematic smartphone use during COVID-19 pandemic

A survey study found links between problematic smartphone use and low sense of control, fear of missing out (FOMO), and repetitive negative thinking during the COVID-19 pandemic. The study suggests that physical activity and mindfulness practices may help reduce such use.

Semiconductors reach the quantum world

A composite material consisting of superconducting and semiconducting materials has been discovered, enabling the integration of quantum devices into semiconductor technology. This breakthrough could lead to significant improvements in data transmission bandwidth, energy efficiency, and information security.

Apple iPhone 17 Pro

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

MBL team succeeds in culturing the pygmy zebra octopus

The Marine Biological Laboratory (MBL) has successfully cultured the pygmy zebra octopus, a new model organism for biological research. This species offers unique features, such as small adult body size and predictable breeding schedule, making it an ideal candidate for further exploration and research.

Swaying mountains

The Matterhorn oscillates at two frequencies, with movements up to 14 times stronger at the summit than at the foot. Researchers detected these subtle vibrations using seismometers, which are also found in bridges and high-rise buildings, revealing a broader phenomenon.

Pathway to better eye health runs through the gut

Phoebe Lin's research establishes a gut-eye association in animal models, finding that certain interventions can enhance Tregs and decrease eye inflammation. Her five-year grant will investigate how intestinal microbes and the immune system can be rebalanced to treat uveitis.

Meta Quest 3 512GB

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

Rates of premature heart attack death vary by sex, race and region in the US

A new study found significant demographic and regional disparities in premature heart attack deaths in the US, with middle-aged adults, men, Black adults, and rural residents facing higher risks. The analysis suggests that targeted interventions and evidence-based strategies can help narrow these disparities and improve outcomes

COVID-19 awareness and preparedness among healthcare workers worldwide

A survey of 17,302 healthcare workers in 57 countries found that male participants and nurses had higher preparedness scores than women and doctors. Preparedness varied across national wealth and sociodemographic characteristics, with East Asia and the Pacific having significantly higher scores.

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.

For some Greenlanders, eating sugar is healthy

A genetic variation among some Greenlanders makes sugar healthy by converting it into a short-chain fatty acid called acetate, which boosts the immune system. Adult carriers have lower BMI, weight, and fat percentage, while children may experience negative consequences from consuming sugar.

Machine learning used to predict synthesis of complex novel materials

Scientists at Northwestern University applied machine learning to guide the synthesis of new nanomaterials, predicting structures for clean energy, chemical, and automotive industries. The algorithm accurately predicted 18 out of 19 possibilities, opening doors to unprecedented materials discovery.

Celestron NexStar 8SE Computerized Telescope

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

The shape of things

A team of researchers has identified a mechanical process by which sheets of cells morph into complex shapes, enabling organs to function. The process involves the production of hyaluronic acid, which swells with water and is constrained by thin connectors between cells.

Risk factors for heart disease change heart structure and appearance

A recent study published by Queen Mary University of London has found that certain risk factors for heart disease are linked to changes in the structure and appearance of the heart. The research analyzed images from over 30,000 people's heart MRI scans using a new imaging toolkit called radiomics.

Neurons in the olfactory cortex link smells to places

A study published in Nature finds that neurons in the primary olfactory cortex learn to encode spatial maps by associating odours with locations, allowing animals to navigate and remember valuable resources. This discovery sheds light on how our brains process smells and spaces.

How do our organs know when to stop growing?

A multidisciplinary team of scientists from UNIGE and MPIPKS has solved the mystery of how an organ changes its size depending on the size of the animal. They developed a mathematical equation that explains how cells know when to stop growing, using the example of the Paedocypris fish.

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.

DNAzymes – how active DNA molecules with therapeutic potential work

Researchers from Heinrich-Heine University Düsseldorf investigated DNAzyme function and application in real-time using atomic resolution techniques. They discovered that magnesium plays a crucial role in the mechanism, but its affinity is limited, leading to the need for targeted modifications to improve activity.

New vaccine allocation model focuses on fairness and diversity

Researchers developed a fair-diverse allocation optimization framework to optimize the distribution of COVID-19 vaccines, treatments, and testing supplies. The model aims to get limited resources to the most vulnerable subgroups while ensuring fairness and diversity, independent of demographic background.

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.

Trees are important for cleaner air in cities

A new study led by researchers at the University of Gothenburg found that trees contribute to cleaner air in cities. The study measured pollutants in tree leaves and compared them with air pollution levels, showing a clear correlation between the two.

Honing in on shared network of cancer genes

A study published in Cell Reports reveals a set of critical gene interactions that are common across many cancers. By using network modeling, researchers have pinpointed functionally relevant gene networks that could offer new cancer therapies.

Star cells in the brain render memory flexible

Researchers found that astrocytes regulate cognitive flexibility by releasing D-serine and glutamate, which integrates synaptic plasticity. Heterosynaptic long-term depression is mediated by astrocytes, critical for memory modification.

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.

Tsunamis’ magnetic fields are detectable before sea level change

A new study finds that the magnetic field generated by a tsunami can be detected a few minutes before changes in sea level, which could improve tsunami warning systems. The researchers used real-world data from two tsunamis to confirm this relationship and provide valuable insights for improving tsunami source models.

Swinging on the quantum level

Researchers from Münster, Bayreuth, and Berlin have proposed a new way of preparing quantum systems to generate single photon states. The proposed method uses a swing-up process in the quantum system to separate generated photons from exciting laser pulses, which is promising for applications.

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.

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.

Mechanism for DNA invasion of adenoviral Covid-19 vaccines discovered

A new study reveals the sophisticated mechanism by which adenoviruses infect human cells and transfer foreign DNA into their nucleus. Protein V plays a crucial role in increasing the virus particle's stability and preventing premature DNA release, which triggers an anti-viral alarm system.

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.

Optics and photonics: Miniaturization of diffusers for new applications

Scientists have developed a novel optical component based on silicon nanoparticles, allowing for the specific control of light direction, color, and polarization. This technology has potential applications in transparent screens, augmented reality, and scientific research, enabling precise control over light behavior.

Autism-linked gene, if deleted, results in less myelin

Research by University of Texas Health Science Center at San Antonio scientists found that mice missing one copy of the Tbx1 gene exhibit slower cognitive processing. The gene's deletion led to diminished myelin insulation around nerves, impacting signal conduction between brain regions.

Fueling the future with new perovskite-related oxide-ion conductors

Researchers have developed a new hexagonal perovskite-related oxide with excellent ionic conduction at intermediate and low temperatures, paving the way for efficient solid oxide fuel cells. The material's stability and ion conduction remain dominant in reducing atmospheres.

Sensor based on quantum physics could detect SARS-CoV-2 virus

A novel quantum-based sensor has been developed to detect the SARS-CoV-2 virus with high accuracy and speed. The sensor uses nitrogen vacancy centers in diamond to detect minute perturbations in the presence of viral RNA, enabling fast and reliable detection.

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.

Double chalice breaks the blockade

Researchers at the University of Victoria have developed a novel broad-spectrum antidote for neuromuscular blockers, consisting of double calixarenes that bind to blocker rods with high selectivity. The 'double chalices' do not block acetylcholine and other physiologically important amines.

Where does the special scent of thyme and oregano come from?

A team of researchers has fully identified the production process of thymol and carvacrol in thyme and oregano, respectively. The findings could lead to improved plant breeding and the development of new antibacterial and anti-inflammatory substances.

Face detection in untrained deep neural networks​

A KAIST research team found that visual selectivity of facial images can arise spontaneously in completely untrained deep neural networks. This discovery reveals the emergence of primitive visual cognitive functions in biological and artificial neural networks, raising questions about the origin of early brain functions.

Regulatory circuits involving bud dormancy factor PpeDAM6

The PpeDAM6 gene plays a crucial role in regulating plant bud dormancy, responding to environmental conditions and hormonal signals. The study reveals the interaction between PpeBPCs and PpeDAM6, highlighting the importance of epigenetic regulation in modulating cell growth and tolerance to abiotic stresses.

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.

Engineering high-dimensional quantum states

A team of researchers demonstrates an adaptive optimization protocol that can engineer arbitrary high-dimensional quantum states, overcoming limitations due to noise and experimental imperfections. The protocol uses measured agreement between produced and target state to tune experimental parameters.

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.