Sentences with phrase «mechanical forces»

The pattern generates a small but potent amount of mechanical force that shows cells where to line up.

When collagen is disrupted in joints, the changes in mechanical forces on the cells can lead to degenerative changes.

Recent developments in atomic - force microscopy have enabled researchers to apply mechanical forces to individual molecules to induce chemical reactions.

Materials in high - performance turbines have to withstand not only powerful mechanical forces, they also have to maintain their chemical and mechanical properties almost up to their melting points.

In experiments with muscle cells from the lining of blood vessels, the researchers found that a sudden mechanical force flips a genetic switch in these cells, making them more likely to contract.

«The ionosphere (according to the understanding at that time) that part of the atmosphere between 65 and 80 km and 280 - 320 km height, will be disrupted by mechanical forces caused by the pressure wave following the explosion.

In previous studies, the group has demonstrated that these nanotubes have piezoelectric effects that is, they convert mechanical forces into electrical signals and could be used as sensors for pacemakers or other small - scale electronic devices.

New research led by Holton and colleagues at the UI posits that our chins don't come from mechanical forces such as chewing, but instead results from an evolutionary adaptation involving face size and shape — possibly linked to changes in hormone levels as we became more societally domesticated.

«The role of mechanical forces in the behaviour of biological cells has long been overlooked, but then has become a rapidly growing field of research over the last two decades now known as mechanobiology,» states Prof. Schwarz.

«Since energy harvesting is one of the key requirements in today's age, converting mechanical forces into a useful form of energy, i.e. electrical output, is an alternative to other energy transduction modes as well as an efficient approach.

«Physiotherapy, also known as Physical therapy, helps to restore movement and function by using mechanical force and movements, Manual therapy, exercise therapy, electrotherapy and various physical therapies.

Traumatic brain injury (TBI) is defined by the Mayo Clinic as a «brain injury that occurs when an external mechanical force causes brain dysfunction.»

At the molecular level, he is discovering how mechanical forces signal gene expression to cause cell growth, migration and cell death.

The THC is driven by high densities at or near the surface, caused by cold temperatures and / or high salinities, but despite its suggestive though common name, is also driven by mechanical forces such as wind and tides.

I focused on an interplay between mechanical force, calcium ions, the clustering of PIP2 lipids in the membrane, PIP2 - FAK interactions, and FAK activation.

Cancer cells exert stronger mechanical forces on their environment than healthy cells, so such nanoparticles could one day be used to test for cancer, she says.

The intrinsic energy landscapes of these oligomers allow mechanical forces provided by actin to prompt a transition into longer beta strands that are much more stable.

It's not just condensation that might cause this; if it's the alternator belt, increased mechanical force required to turn the alternator when the battery is at ~ 13v (after sitting overnight) rather than ~ 14v (after recently running) will affect slippage.

Blocking the ability of stromal cells to exert mechanical forces on the BM could therefore represent a new therapeutic strategy against aggressive tumors.Stromal cells play various roles in tumor establishment and metastasis.

All energies are intertwined and relative to greater energies regardless of quantum mechanical forces that give rise to their states, and thus there is no absolute perspective anywhere in the universe as Einstein and his theories on special and general relativity clearly identify and solidify with every modern discovery long after his death.

It is to regard not mechanical force but spiritual personality as the ultimate in existence, and to put physical things in their rightful place as servant, not master, of the spirit.

This structure could represent a stretch activated state of TREK - 2, where mechanical force applied to the lipid membrane leads to an upward movement in transmembrane helices M2 - M4 into this up conformation.

Mechanical forces during intra-uterine life and during birth may negatively affect the oral - motor function of the newborn.

At the University of Cologne, biophysicists in the lab of Professor Berenike Maier were now able to show how differential mechanical forces can lead to cell sorting in biofilms, thereby determining their architecture.

Some materials luminesce, changing their color and intensity when under mechanical forces such as grinding or rubbing.

«Tug of war among bacteria: Mechanical forces control the architecture of bacterial biofilms.»

In their publication in the journal eLife, the team headed by the biophysicist Enno Oldewurtel showed how specific mechanical forces can be the key to the structure of a biofilm.

All plants can sense mechanical forces to some degree, but tactile sensitivity is most obvious in the carnivorous Venus flytrap.

The team also demonstrated for the first time that if the electrostatic actuator delivers a small mechanical force to the PMO that varies in time while the system undergoes these self - sustaining oscillations, the PMO can lock onto that tiny variable signal and greatly amplify it.

«So the symmetrization process in Aurelia, with its simple geometry, lends itself as a good model system where we can study how mechanical forces play a role in morphogenesis.»

But if mechanical force is applied to move one electrode, the change lowers the surface area where the two electrodes interact.

Modern aircraft and power generation turbines depend on precision - machined parts that can withstand harsh mechanical forces in high - temperature environments.

These observations suggested the toe is twisted as a result of mechanical forces imposed on it by the embryonic musculature.

A high - precision motor gave a carefully calibrated tug to the sheet to subject the neurons to mechanical forces Parker calculated to be comparable to those produced by an explosion.

Illustrative examples for these bright perspectives are the first enzymes that work with anion - π bonds, made in the National Centre of Competence in Research (NCCR) Molecular Systems Engineering, and the first fluorescent probes that can visualise mechanical forces in living cells thanks to chalcogen bonds with sulfur, made in the NCCR Chemical Biology at UNIGE.

«As they grow in relatively dense populations, mechanical forces combine them into vertically oriented assemblies known as forests or arrays.

But in examinations from periodic measurements of participants» heads from 3 years of age to more than 20 years old, the UI researchers found no evidence that these imperceptible mechanical forces led to new bone in the chin region.

«In short, we do not find any evidence that chins are tied to mechanical function and in some cases we find that chins are worse at resisting mechanical forces as we grow,» says Holton, assistant professor and anthropologist in the Department of Orthodontics at the UI College of Dentistry.

Using advanced facial and cranial biomechanical analyses with nearly 40 people whose measurements were plotted from toddlers to adults, the UI team concludes mechanical forces, including chewing, appear incapable of producing the resistance needed for new bone to be created in the lower mandible, or jaw area.

In fact, despite having placed the device under extreme abusive mechanical force, such as running a car tyre over it, the electrical output was highly uniformed and there was no damage to the functionality of the device.

The differential outcomes could be attributable to the greater intensity and duration of the WBV protocol used by Jing et al. (44); specifically, this report applied comparable mechanical force (0.5 g) at slightly higher frequency (45 Hz, as opposed to 32 Hz in the current study).

By incorporating the triazole group into poly (methyl acrylate)(PMA) the researchers could give it hooks which can be used to direct mechanical forces.

Instead of using uncontrolled mechanical force, this new insulated transseptal needle has a closed end that safely delivers radiofrequency energy to create a small hole in the atrial septum, allowing the needle to pass to the left atrium with increased efficacy and control.

The AMBER package provides a set of molecular mechanical force fields for the simulation of biomolecules and a package of molecular simulation programs.

Research Paper Outcomes of Epidural Neuroplasty Utilizing Adhesiolysis by Means of Hydraulic and Mechanical force Isao Aoi, Huan - Chieh Chen, Tai - Ngar Lui, Tien - Jen Lin J. Biomed 2018; 3: 26 - 31.

These findings suggest mechanical forces in the early embryo's microenvironment may play a bigger role in its development than scientists had realized.

This chromosomal arrangement efficiently transmits mechanical force pulling the kinetochore to chromosomal arm regions, thereby improving the fidelity of chromosomal segregation.

Skolimowski shows the Gallo figure struggling (for the most part) not with the elements, wild animals, and mere mechanical forces, but with a world that is constantly being changed by money, a world dominated and maintained for global capitalism.