Add BrightSurf on Google Email

Science News Archive 2021 - Page 5


Page 5 of 510

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.

SourceESO·JournalNature Astronomy·DateDec 22, 2021

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.

SourcePaul Scherrer Institute·JournalScience Advances·TypeExperimental study·DateDec 22, 2021

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.

SourceETH Zurich·JournalEarth and Planetary Science Letters·DateDec 22, 2021

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

SourceAmerican Heart Association·JournalJournal of the American Heart Association·DateDec 22, 2021

Boston University School of Public Health professor joins nationwide reporting venture to reveal COVID’s hidden deaths

A Boston University School of Public Health professor is providing mortality data and modeling to identify underreported COVID-19 deaths in US counties. The true number of COVID deaths is likely much higher than recorded, with approximately 20% excess deaths occurring at home.

SourceBoston University School of Medicine·JournalPLOS Medicine·TypeNews article·DateDec 22, 2021

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.

SourceHarvard Medical School·JournalCell·TypeExperimental study·DateDec 22, 2021

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.

SourceUniversité de Genève·JournalNature·TypeExperimental study·DateDec 22, 2021

Disaster relief could benefit from neural net combining multiple remote data sources

A new neural net technique combines optical imaging and synthetic-aperture radar to provide a single comprehensive data source, enhancing disaster response capabilities. The approach achieves up to a 96% accuracy rate in detecting objects and can be applied to various tasks such as crop health monitoring and building identification.

SourceBeijing Institute of Technology Press Co., Ltd·JournalSpace: Science & Technology·TypeData/statistical analysis·DateDec 21, 2021

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.

SourceUniversity of Münster·JournalPRX Quantum·TypeComputational simulation/modeling·DateDec 21, 2021

Quantum beam-applied liquid metal nanoparticularization for cancer optotheranostics

Scientists at Japan Advanced Institute of Science and Technology developed a novel method to create liquid metal nanoparticles using biomolecules and quantum beam radiation. The resulting nanoparticles exhibited unique structural and physicochemical traits, enabling NIR bioimaging and photothermal activation for cancer treatment.

SourceJapan Advanced Institute of Science and Technology·JournalApplied Materials Today·DateDec 21, 2021

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.

SourceKarlsruher Institut für Technologie (KIT)·JournalAdvanced Materials·TypeExperimental study·DateDec 21, 2021

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.

SourceWiley·JournalAngewandte Chemie International Edition·TypeExperimental study·DateDec 21, 2021

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.

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·JournalNature Communications·TypeMeta-analysis·DateDec 21, 2021