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Physics - Astronomy / Space Science - 26.01.2023
A new approach for solving the dark energy mystery
What is behind dark energy - and what connects it to the cosmological constant introduced by Albert Einstein? Two physicists from the University of Luxembourg point the way to answering these open questions of physics. The universe has a number of bizarre properties that are difficult to understand with everyday experience.

Chemistry - Physics - 26.01.2023
Séminaire LCMCP | Stephan Wolf ’Potent small molecular-weight antiscalants...’
Sorbonne Université - Campus Pierre et Marie Curie UFR de chimie, tour 32-42, salle 101 Sorbonne Université - Campus Pierre et Marie Curie UFR de chimie, tour 32-42, salle 101 Le LCMCP vous informe Stephan Wolf  (Institute of Glass and Ceramics Friedrich-Alexander-Universität Erlangen-Nurnberg Germany) Will present a seminar entitled "Potent small molecular-weight antiscalants operate by specific additive-cluster interactions beyond established m

Life Sciences - Physics - 25.01.2023
Long-term memory in 2D nanofluidic channels
Published in Science , a collaboration between teams from the National Graphene Institute (NGI) at The University of Manchester , and the É cole Normale Sup é rieure (ENS), Paris, demonstrated the Hebbian learning in artificial nanochannels, where the channels showed short and long term memory. Hebbian learning is a technical term introduced in 1949 by Donald Hebb, describing the process of learning by repetitively doing an action.

Physics - Chemistry - 25.01.2023
The Last Mysteries of Mica
The Last Mysteries of Mica
A well-known mineral is once again the center of attention thanks to applications in electronics: the Vienna University of Technology shows that mica still has surprises in store. At first glance, mica is something quite ordinary: it is a common mineral, found in granite for example, and has been extensively studied from geological, chemical and technical perspectives.

Physics - Life Sciences - 25.01.2023
Thermal motions and oscillation modes determine the uptake of bacteria in cells
Thermal motions and oscillation modes determine the uptake of bacteria in cells
Team at the University of Freiburg analyzes how model bacteria dock to and penetrate membrane bubbles. How and with what effort does a bacterium - or a virus - enter a cell and cause an infection? Researchers from Freiburg have now made an important contribution to answering this question: A team led by physicist Alexander Rohrbach and his collaborator Dr. Yareni Ayala was able to show how thermal fluctuations of a model bacterium and membrane oscillation modes of a model cell influence the energy with which the model bacteria dock and enter the membrane.

Physics - Chemistry - 24.01.2023
Scientists open new window on the physics of glass formation
Research from an international team of scientists has cast new light on the physics of vitrification - the process by which glass forms. Their findings, which centre on analysis of a common feature of glasses called the boson peak, could help pave the way for new developments in materials science. The peak can be observed in glass when special equipment is used to study the vibrations of its constituent atoms, where it spikes in the terahertz range.

Physics - 24.01.2023
Randomness in Quantum Machines Helps Verify Their Accuracy
In quantum computers and other experimental quantum systems, information spreads around the devices and quickly becomes scrambled like dice in a game of Boggle. This scrambling process happens as the basic units of the system, called qubits (like computer bits only quantum) become entangled with one another; entanglement is a phenomenon in quantum physics where particles link up with each other and remain connected even though they are not in direct contact.

Health - Physics - 24.01.2023
Portable cap can measure cognition with pulsed laser light
The cap will help researchers gain new insight into how the brain functions. Close Measuring activity in the human brain remains one of the greatest challenges in science and medicine. Despite recent technological advances in areas such as imaging and nanoscience, researchers still struggle to accurately detect cognition.

Physics - Chemistry - 23.01.2023
Colour images from the shadow of a sample
Colour images from the shadow of a sample
Researchers at Göttingen University develop new method for X-ray colour imaging A research team at the University of Göttingen has developed a new method to produce X-ray images in colour. In the past, the only way to determine the chemical composition of a sample and the position of its components using X-ray fluorescence analysis was to focus the X-rays and scan the whole sample.

Physics - Astronomy / Space Science - 23.01.2023
How a 3 cm glass sphere could help scientists understand space weather
How a 3 cm glass sphere could help scientists understand space weather
Science + Technology UCLA study overcomes the effects of Earth's gravity, replicating conditions on other planets, stars Science + Technology UCLA study overcomes the effects of Earth's gravity, replicating conditions on other planets, stars Key takeaways Space weather can interfere with spaceflight and the operation of satellites, but the phenomenon is very difficult to study on Earth because of the difference in gravity.

Astronomy / Space Science - Physics - 23.01.2023
A new model for dark matter
Phase transition in early universe changes strength of interaction between dark and normal matter This NASA Hubble Space Telescope image shows the distribution of dark matter in the center of the giant galaxy cluster Abell 1689, containing about 1,000 galaxies and trillions of stars. Dark matter is an invisible form of matter that accounts for most of the universe's mass.

Physics - Astronomy / Space Science - 23.01.2023
A new model for dark matter
A new model for dark matter
PRESS AND PUBLIC RELATIONS Phase transition in the early universe changes strength of interaction between dark and normal matter Dark matter remains one of the greatest mysteries of modern physics. It is clear that it must exist, because without dark matter, for example, the motion of galaxies cannot be explained.

Physics - Chemistry - 20.01.2023
Physical effect also valid in the quantum world
Physical effect also valid in the quantum world
Researchers at the University of Bonn confirm validity of a central theorem of physics for Bose-Einstein condensates Physicists at the University of Bonn have experimentally proven that an important theorem of statistical physics applies to so-called "Bose-Einstein condensates." Their results now make it possible to measure certain properties of the quantum "superparticles" and deduce system characteristics that would otherwise be difficult to observe.

Physics - Innovation - 20.01.2023
Method to preserve entanglement could enable new quantum tech
An international team of researchers has developed a new method of overcoming a key challenge for the development of future quantum tech. In a new paper published in the journal Physical Review X Quantum, the researchers describe how they may have solved a key problem for quantum technologies by keeping particles entangled in previously impossible conditions.

Social Sciences - Physics - 19.01.2023
Active matter theory explains fire-ant group behaviour
Active matter theory explains fire-ant group behaviour
Recerca Ants are social insects and the Solenopsis invicta species —known as the fire ant— is no exception. The social interactions of this invasive insect, which comes from South America, are framed within the context of the theory of Active Matter, which would explain the ants' group behaviour as a reaction to the intrinsic mechanisms in the system.

Physics - Chemistry - 18.01.2023
A new, better technology for X-ray laser pulses
A new, better technology for X-ray laser pulses
Simpler and much more efficient than ever before: A new technology for producing X-ray laser pulses has been developed at TU Wien. The X-rays used to examine a broken leg in hospital are easy to produce. In industry, however, X-ray radiation of a completely different kind is needed - namely, X-ray laser pulses that are as short and high-energy as possible.

Physics - 18.01.2023
Blast Chiller for the Quantum World
The quantum nature of objects visible to the naked eye is currently a much-discussed research question. A team led by Innsbruck physicist Gerhard Kirchmair has now demonstrated a new method in the laboratory that could make the quantum properties of macroscopic objects more accessible than before. With the method, the researchers were able to increase the efficiency of an established cooling method by a factor of 10.

Chemistry - Physics - 18.01.2023
New ’chain mail’ material is tough and flexible
The individual building blocks of a catenane are polyhedral molecules - a type of adamantane - that link arms to form a 2D mesh or 3D network that is sturdy but flexible. University of California, Berkeley, chemists have created a new type of material from millions of identical, interlocking molecules that for the first time allows the synthesis of extensive 2D or 3D structures that are flexible, strong and resilient, like the chain mail that protected medieval knights.

Physics - Materials Science - 18.01.2023
Engineers grow 'perfect' atom-thin materials on industrial silicon wafers
Engineers grow ’perfect’ atom-thin materials on industrial silicon wafers
Their technique could allow chip manufacturers to produce next-generation transistors based on materials other than silicon. Close True to Moore's Law, the number of transistors on a microchip has doubled every year since the 1960s. But this trajectory is predicted to soon plateau because silicon - the backbone of modern transistors - loses its electrical properties once devices made from this material dip below a certain size.

Physics - Computer Science - 18.01.2023
Can you trust your quantum simulator?
Close At the scale of individual atoms, physics gets weird. Researchers are working to reveal, harness, and control these strange quantum effects using quantum analog simulators - laboratory experiments that involve super-cooling tens to hundreds of atoms and probing them with finely tuned lasers and magnets.
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