Articles tagged with Asymmetry
Actin filaments and a fast plant motor protein called Chara corallina myosin XI (Cc XI) were combined to observe spontaneous ring formation. The rings rotated continuously in one direction and remained fixed, even as individual filaments moved within them.
Researchers developed a method that characterizes collective dynamics of neural activity using principles from thermodynamics. They found that neurons dynamically reshape their interactions during behavior and that the brain's internal temporal asymmetry shifts during task engagement, shedding light on efficient computation.
A research team analyzed YouTube videos of sleeping cats to find that two thirds sleep on their left side. This bias is thought to be an evolutionary strategy, favoring the use of the right hemisphere of the brain for spatial awareness and threat processing after waking.
Researchers at MPI-DS discovered that non-reciprocal interactions between particles can homogenize mixtures and control particle organization. This study offers a new route to understanding how complex patterns and structures emerge and maintain cellular functions.
Researchers discovered that mammalian membranes have drastically different phospholipid abundances between their two leaflets, contradicting a major assumption of cell biology. The asymmetry is enabled by cholesterol's unique properties, which act as a buffer to redistribute between the leaflets and maintain robust barriers.
Researchers from Kumamoto University and colleagues found that left-right symmetry-breaking occurs prior to node formation, indicating a tightly regulated program for asymmetry. This study demonstrates the involvement of physical mechanisms in biological patterning using quantitative biophysical parameters.
The paper demonstrates the explicit and hidden presence of asymmetry in mathematics courses for K-12 teacher candidates. Digital tools are used to show how knowledge of asymmetry as an antithesis of symmetry brings new insights to studying mathematics for teaching.
The researchers created a chemotaxic biomimetic liquid metallic entity that exhibits various behaviors like engulfing foreign substances and changing shape, similar to living cells. These liquid metal structures can autonomously climb slopes and move through complicated surfaces with versatility and potential for future applications.
Researchers discovered that cell motion shows asymmetry before left-right organizer formation in early animal development, contradicting earlier findings on genetics. This study sheds new light on the origin of bilateral symmetry and could apply to human birth defects.
Researchers have discovered a previously unverified gap in the electronic band structure of MnBi2Te4, a topological insulator. The team found that the material is gapless in equilibrium but develops a gap when exposed to different orientations of circularly polarized light.
Researchers at UCLA developed a new type of imaging technology that forms images in only one direction, enabling efficient and compact methods for asymmetric visual information processing and communication. The technology works exceptionally well under partially coherent light, achieving high-quality imaging with high power efficiency.
The asymmetric cosine distribution model offers improved efficiency for analyzing data with values in [-1,1], including standardized scores and temperature anomalies. Key findings include satisfactory results on simulated and real data, as well as potential applications in machine learning models.
Researchers at KAIST have developed a Janus metasurface capable of controlling asymmetric light transmission, enabling the creation of two independent optical systems with a single device. This technology also enables optical encryption by generating different images depending on the direction and polarization state of incoming light.
A new theoretical strategy enables the creation of asymmetric continuous distributions with tunable parameters and various shapes. This improvement can increase accuracy in models and predictions, particularly for skewed or multimodal data.
Researchers found that positive expectations lead to increased activity in pleasure-related brain regions, while negative expectations prime pain processing. The study suggests a dissociable impact of hedonic information, with positive expectations facilitating reward processing and negative expectations heightening anxiety.
Researchers have observed a uniquely inflated and asymmetric exoplanet called WASP-107b using the James Webb Space Telescope. The exoplanet has an east-west asymmetry in its atmosphere, which may help scientists understand its climate and atmospheric dynamics.
Researchers have observed symmetry-breaking dynamics in ionized CO₂ dimers, leading to the formation of CO₃ moieties. This phenomenon has significant implications for atmospheric chemistry and astrochemistry, providing new insights into molecular behavior under extreme conditions.
A new study by Osaka Metropolitan University researchers suggests that the nuclear structure of titanium-48 changes depending on its distance from the nucleus. The findings provide clues to the α-decay process in heavy nuclei and could help solve a 100-year-old physics mystery.
Researchers at Pohang University of Science & Technology (POSTECH) made a small change to develop highly efficient SOT materials. By creating an imbalance in the spin-Hall effect, they controlled magnetization switching without magnetic fields, achieving 2-130 times higher efficiency and lower power consumption than known single-layer ...
Lokiceratops rangiformis, a plant-eating dinosaur with large horned frill and asymmetrical caribou-like antlers, has been discovered in Montana. The species' unusual features may have played a role in mate selection or species recognition.
Researchers used the sphinx tile to explore geometry and chirality in life, finding unexpected properties related to its chirality. The study reveals superexponential increases in possible layouts as the number of sphinxes grows, with some tilings having nearly 72,000 possibilities.
A study discovers that traditional Chinese ice-ray lattice designs can provide unique stiffness and strength under asymmetric loads, offering an alternative to conventional gridshells. The research also explores the potential of integrating complex geometry into facade design and micro-scale material design.
A new study reveals that molecules can interact non-reciprocally without external forces, driven by kinetic asymmetry and gradients of reactants and products. This finding has significant implications for our understanding of complex behavior in living organisms and the development of novel molecular machines.
Researchers found that cytoglobin, a protein similar to hemoglobin, plays a vital role in the correct left-right pattern of the heart and other asymmetric organs. The study's findings could lead to new therapeutic interventions for rare birth defects affecting cilia function.
Scientists from UniSA, UoA and Yale University successfully scale up power in fibre lasers by three-to-nine times while maintaining beam quality. This breakthrough could have significant implications for remote sensing, gravitational wave detection and the defence industry.
A new study reveals that flow-sensing cilia activate BICC1 to regulate organ laterality, with a complex network involving ANKS3 and ANKS6. The discovery provides fundamental insights into gene expression and opens avenues for therapies of genetic disorders.
Researchers at North Carolina State University have created a soft robot that can navigate simple mazes without human or computer guidance. The new robot has an asymmetrical design, allowing it to turn and move in arcs, enabling it to navigate complex and dynamic environments.
Scientists have developed a new method to manufacture high-performance aluminum matrix composites using asymmetric cryorolling, resulting in improved mechanical properties and increased ductility. The technique produces sheets with fewer microvoids, finer grain size, and higher density of dislocations.
Researchers at Tokyo University of Science successfully synthesized tanzawaic acid B in large amounts, paving the way for new antibiotic development. The breakthrough method could lead to creation of various compounds for pharmaceuticals, including new antibiotic candidates.
A new study reveals that biscuspid aortic valve is caused by mutations in the MINDBOMB1 gene, with significant implications for developing alternative treatments to surgery. The research combines genome sequencing and gene editing techniques to analyze the mechanisms of this congenital defect.
A team of researchers from Kyoto University and international institutions has developed a mathematical solution to the temporal asymmetry of nonequilibrium disordered Ising networks. This breakthrough offers insights into the behavior of biological systems, machine learning, and AI tools.
A game theory study from Dartmouth College reveals that being uncooperative can lead to a more equal outcome, even for the weaker party. By refusing to fully cooperate, players can resist extortion and ultimately achieve a better payoff.
This study validates a novel method to quantify individual limb contributions to standing anteroposterior postural control. The results show that limb contributions are distinct from self-reported limb dominance and between-limb weight distributions, offering new insights into the complex mechanisms of standing postural control.
University of Florida astronomers discovered parity symmetry violation, a broken symmetry that explains why there's more matter than antimatter. This finding confirms the Big Bang theory and addresses the question of why something exists instead of nothing.
A team of researchers from UNIGE and Beihang University has identified the FOXI3 gene as responsible for one form of Goldenhar syndrome, a rare congenital disorder. Pathogenic variants in both copies of the FOXI3 gene are necessary for the disease to develop, following an autosomal recessive inheritance pattern.
Scientists at RIKEN have developed a new technique for creating complex 3D organoids using a cube-like structure made of hydrogels. This innovation enables researchers to control the environment around cells, allowing for the creation of tissues with faithful reproduction of asymmetric genetic expression. The technology has the potenti...
Researchers at Colorado State University have created a synthetic molecule with an asymmetric oxygen atom that remains stable and nonreactive. This feat is significant because chiral molecules can have drastically different properties and are crucial in fields like drug discovery and materials engineering.
The study found sex differences in brain structure and developmental changes in white matter during early childhood. In 5-year-olds, the pattern of white matter asymmetry resembled adult-like patterns, suggesting a possible transient feature in brain development.
Researchers at Tokyo University of Science used computer simulations to clarify why L-alanine was preferred over D-alanine during primordial RNA aminoacylation reactions. The study revealed that L-amino acid had more electrostatic stability in its transition state, providing a plausible reason for the selective aminoacylation.
Researchers developed a machine learning model using advanced 2D chemical descriptors to predict highly selective asymmetric catalysts without quantum chemical computations. The model demonstrated high accuracy in predicting catalyst structures and selectivity, outperforming existing methods.
A team of researchers led by Boston College Assistant Professor Brian Zhou developed a new quantum sensor technique to image and understand the origin of photocurrent flow in Weyl semimetals. They found that the electrical current flows in a four-fold vortex pattern around where light is shined on the material.
A new superaerophilic/superaerophobic cooperative Pt electrode promotes efficient mass transfer of hydrogen, reducing oversaturated dissolved hydrogen and improving HER efficiency. The design achieves significant overpotential reductions compared to traditional flat electrodes.
An international team of scientists suggests that an outward, fast migration of Jupiter can distort the configuration of Trojan swarms, resulting in more stable orbits in one swarm than the other. This new mechanism provides a natural explanation for the observed asymmetry in the number of asteroids in the L4 and L5 swarms.
Research reveals that cilia function as creators and sensors of biomechanical forces in the developing embryo, shaping the left-right body plan. Cilia sense flow forces and translate them into calcium signals controlling left-right development.
A new study found that structured visual design properties, such as symmetry and balance, reinforce claims about a brand's utilitarian benefits. In contrast, unstructured designs are associated with hedonic benefits. The research suggests marketers can use perception to influence beliefs about brand performance and consumer choice.
Researchers at Kyoto University have discovered a vital role of two proteins, ABCA1 and Aster-A, in maintaining the asymmetric distribution of cholesterol within cells. This process allows for selective control over substances entering and leaving cells.
The study found that PodJ's phase separation plays a crucial role in forming and regulating the scaffold-signaling hub in Caulobacter crescentus. The researchers also identified a negative regulator, SpmX, which impedes PodJ condensate formation and promotes cell-pole remodeling.
Researchers at Rice University have developed a method to predict the shapes of crystals that lack symmetry by assigning arbitrary latent energies to their surfaces. This approach uses closure equations with arbitrary parameters to mimic nature's solution, allowing for accurate crystal shape predictions.
Researchers at KAUST develop a novel multivariate skew-elliptical link model to address the challenges of highly imbalanced health data. The new model provides a better fit to COVID-19 datasets and offers flexibility over existing models.
Researchers develop Janus Bi, a platform for creating highly asymmetrical nano-architectures with 2D materials, inspired by nature's efficient light transformation processes. The project aims to produce scalable nanotechnological objects with light conversion capabilities.
Experts found that large differences in finger length between left and right hands are associated with COVID-19 severity. The study may help identify those at greatest risk of hospitalization across age groups.
The study reveals that the distribution of local interface displacements exhibits non-zero skewness due to pinned segments lagging behind the rest. The researchers also found that scaling properties of interface segments depend on whether they are lagging or moving ahead of the average displacement.
Researchers at the University of Technology Sydney have extended the theory of acoustic levitation to account for asymmetrical particles, which is more applicable to real-world experience. This new understanding enables precise control and sorting of tiny objects using ultrasonic waves.
A study published in Science finds that gut rotation is regulated by two waves of Pitx2 expression, triggered by mechanical cues and a latent TGF-beta sensor. This discovery sheds light on the mechanisms of organ formation and has implications for understanding birth defects such as intestinal malrotation.
Research found that human brain hemispheres have distinct functional patterns, with regions on the left and right sides specialized for different tasks. Individual differences in these arrangements were heritable, suggesting genetic influence, while environmental factors also play a role. The study also compared humans to monkeys, find...
Researchers propose using precision data from upcoming experiments to test the cosmological collider effect and unravel the mystery of matter's origin. They suggest that leptogenesis, a well-known mechanism, could be used to explain the imbalance between matter and antimatter in the early universe.
Researchers at Rice University have discovered piezoelectricity in two-dimensional materials across phase boundaries. The discovery enables the creation of ultra-sensitive temperature or pressure sensors and tiny actuators, revolutionizing electronic applications.
The study compares the behavior of flat (1D), cylindrical (2D) and spherical (3D) micromirrors for free-space light coupling. Silicon micromirrors were fabricated and used to experimentally validate the coupling efficiency in visible and near infrared wavelengths.
Researchers have developed a single-cell PV design integrated with nonreciprocal optical components to provide 100-percent reuse of emitted radiation, breaking the Shockley–Queisser limit. This breakthrough enables a quasimonochromatic radiation converter to reach the theoretically maximum Carnot efficiency.
A CNIC team has created a dynamic 3D atlas of the formation of the heart during embryonic and fetal development, allowing for the identification of the first appearance of left–right asymmetry in the heart. This study provides important information on the development of congenital heart malformations.