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Search results for “Mechanics”

1,000+ results for "Mechanics"

Big impacts from small changes in cell

Researchers at Göttingen and Warwick Universities studied the structure and mechanics of cytoskeletal networks composed of actin isoforms. The study found that gamma actin forms rigid networks near the cell apex, while beta actin preferentially forms parallel bundles with distinct organizational patterns.

SourceUniversity of Göttingen·JournalNature Communications·TypeExperimental study·DateDec 22, 2023

Physicists ‘entangle’ individual molecules for the first time, hastening possibilities for quantum information processing

Princeton researchers successfully entangle individual molecules, a breakthrough in quantum mechanics that could lead to faster quantum computers, simulators, and sensors. The achievement overcomes long-standing challenges in controlling molecular behavior, enabling new ways of storing and processing quantum information.

SourcePrinceton University·JournalScience·TypeExperimental study·DateDec 7, 2023

Emergence of collective phenomena in fractured rocks: Exploring the 'more is different' perspective

A recent study by Qinghua Lei presents a new framework for understanding the emergence of collective phenomena in fractured rocks. The research highlights how the behavior of rock masses cannot be predicted solely based on small-scale core samples, due to the complex interactions between fractures and intact rocks across multiple scales.

SourceKeAi Communications Co., Ltd.·JournalRock Mechanics Bulletin·DateNov 26, 2023

USTC reveals the relationship between thermalization dynamics and quantum criticality in lattice gauge theories

Researchers from USTC have used an ultra-cold atom simulator to study the relationship between non-equilibrium thermalization and quantum criticality in lattice gauge field theories. Their findings show that multi-body systems with gauge symmetry tend to thermalize more easily near quantum phase transition points.

SourceUniversity of Science and Technology of China·JournalPhysical Review Letters·DateSep 21, 2023

Study uses motion capture to determine what makes the best free-throw shooters

A new study from the University of Kansas used motion capture technology to analyze the biomechanics of proficient free-throw shooters. Proficient shooters exhibited lower knee and center of mass peak and mean angular velocities, greater release height, and less forward trunk lean compared to nonproficient shooters.

SourceUniversity of Kansas·JournalFrontiers in Sports and Active Living·TypeImaging analysis·DateAug 29, 2023

Do measurements produce the reality they show us?

Researchers from Hiroshima University found that measurements shape observable reality, suggesting a context-dependent understanding of quantum superpositions. This approach resolves the paradox of conflicting results in quantum experiments and provides evidence against reducing reality to material building blocks.

SourceHiroshima University·JournalPhysical Review Research·DateAug 23, 2023

Researchers develop a unique quantum mechanical approach to determining metal ductility

Researchers developed a unique approach to predict metal ductility using quantum mechanics, filling the need for an inexpensive and efficient method. The new approach was tested on refractory multi-principal-element alloys and showed robust results, confirming its effectiveness in distinguishing between ductile and brittle materials.

SourceDOE/Ames National Laboratory·JournalActa Materialia·DateAug 14, 2023

Stick-to-itiveness: Pitt engineers show self-organization of sticky micron-to-mesoscale 3D structures in confined fluids

Researchers at the University of Pittsburgh have developed a system that uses fluid mechanics and chemo-mechanical processes to autonomously assemble hierarchical 3D structures. The system utilizes sticky bonds to drive self-organization, allowing for the construction of complex devices with minimal external intervention.

SourceUniversity of Pittsburgh·JournalPNAS Nexus·TypeComputational simulation/modeling·DateJul 31, 2023

When electrons slowly vanish during cooling

In certain metals, phase transitions occur gradually due to exotic laws of quantum mechanics, allowing new insights into the quantum world. Researchers at the University of Bonn and ETH Zurich have directly observed this effect, enabling a better understanding of critical slowing down in fermions.

SourceUniversity of Bonn·JournalNature Physics·TypeExperimental study·DateJul 31, 2023

Laser differential confocal Raman-Brillouin spectrum microscopy

A new microscopy technique combines confocal Raman and Brillouin spectroscopy to analyze multiple dimensions of tissue, including morphology, chemical properties, and mechanical properties. The developed microscope has high spatial resolution and anti-scattering capability, providing clear images and accurate measurements.

Tuning T cell traits and functions with biomechanical materials

A research team at the Wyss Institute engineered a 3D model of extracellular matrix to study the impact of tissue mechanics on T cells. They found that viscoelasticity played a crucial role in shaping T cell traits and functions, enabling the creation of functionally distinct T cell populations for adoptive therapies.

SourceWyss Institute for Biologically Inspired Engineering at Harvard·JournalNature Biomedical Engineering·TypeExperimental study·DateJun 26, 2023

Coaxing hair growth in aging hair follicle stem cells

Researchers at Northwestern University have discovered a way to soften stiff hair follicle stem cells, enabling them to grow hair again. By boosting the production of microRNA-205, they promote hair growth in both young and old mice, offering potential for human hair regrowth.

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJun 5, 2023

Low-cost, waterproof sensors may create new health-monitoring possibilities

Researchers developed an affordable, stretchable, and waterproof sensor using graphite material from pencils to monitor gas molecules, temperature, and electrical physiological signals. The device has the potential for public health applications, including collecting data on population health variation between geographic locations.

SourcePenn State·JournalChemical Engineering Journal·TypeExperimental study·DateMay 18, 2023

Entangled quantum circuits

A team of researchers has performed a loophole-free Bell test using superconducting circuits, confirming that quantum mechanics predicts non-local correlations. The experiment demonstrates that entangled particles can be correlated over large distances, opening up possibilities for distributed quantum computing and quantum cryptography.

SourceETH Zurich·JournalNature·DateMay 10, 2023

Why do Champagne bubbles rise the way they do? Scientists’ new discovery is worthy of a toast

Researchers from Brown University and the University of Toulouse found that surfactants make Champagne bubble chains stable. The experiments showed that larger bubbles and surfactants help reduce tensions between liquid and gas, creating a smooth rise. This discovery has implications for understanding bubbly flows in fluid mechanics.

SourceBrown University·JournalPhysical Review Fluids·TypeExperimental study·DateMay 3, 2023

Swedish quantum computer applied to chemistry for the first time

Researchers at Chalmers University have successfully used a quantum computer to calculate the intrinsic energy of small molecules, demonstrating a new method called Reference-State Error Mitigation. This breakthrough has the potential to advance the boundaries of chemical calculations and simulate complex chemical processes.

SourceChalmers University of Technology·JournalJournal of Chemical Theory and Computation·TypeComputational simulation/modeling·DateApr 20, 2023

Hitchhiker plants inspire improved techniques for reattaching tendon to bone

Researchers developed a new approach to suturing based on the mechanics and spacing of a hitchhiker plant's attachment system, promising to balance forces across sutures and reduce failure rates in surgical procedures. The findings were published in Proceedings of the Royal Society A.

SourceWashington University in St. Louis·JournalProceedings of the Royal Society A Mathematical Physical and Engineering Sciences·DateMar 14, 2023