Sentences with phrase «mechanical forces in»

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

Mechanical forces in lymphatic vascular development and disease.

«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.

Mechanical forces in utero might have long - lasting repercussions.

Not exact matches

The incident followed a Friday scare at JFK, in which an American Airlines flight was forced to land shortly after takeoff because of a mechanical issue.

After serving in the Air Force for three years, Berthold graduated from the University of New Mexico in 1985 with a degree in mechanical engineering and went to work in professional car racing.

Certainly it is true that the more a mechanical force acts on a thing in a purely mechanical way, the more the autonomy of the thing is diminished.

Thanks to the mechanical devices which we increasingly charge with the burden not only of production but also of calculation, the quantity of unused human energy is growing at a disturbing rate both within us and around us; and this phenomenon will reach its climax in the near future, when nuclear forces have been harnessed to useful work.

When Enlightenment thinkers decided that the whole of nature operates in terms of mechanical forces, they concluded that the apparent difference between organisms and mechanisms is only apparent.

The behavior of the clock is to be explained in detail by the mechanical forces operating among its parts.

It does assert something about the world to say that two parameters such as force and mass can be deployed in such a way as to predict or describe a large class of mechanical phenomena.

In every sphere, physical no less than intellectual and moral, and whether it be a question of flowing water, a traveler on a journey, or a thinker or mystic engaged in the pursuit of truth, there inevitably comes a point in time and place when the necessity presents itself, to mechanical forces, or to our freedom of choice, of deciding once and for all which of two paths is the one to takIn every sphere, physical no less than intellectual and moral, and whether it be a question of flowing water, a traveler on a journey, or a thinker or mystic engaged in the pursuit of truth, there inevitably comes a point in time and place when the necessity presents itself, to mechanical forces, or to our freedom of choice, of deciding once and for all which of two paths is the one to takin the pursuit of truth, there inevitably comes a point in time and place when the necessity presents itself, to mechanical forces, or to our freedom of choice, of deciding once and for all which of two paths is the one to takin time and place when the necessity presents itself, to mechanical forces, or to our freedom of choice, of deciding once and for all which of two paths is the one to take.

In the Newtonian universe, once the initial conditions and the laws of force are given, everything is interpreted in terms of the mechanical movements of atoms and molecules and all is calculable for ever before and afteIn the Newtonian universe, once the initial conditions and the laws of force are given, everything is interpreted in terms of the mechanical movements of atoms and molecules and all is calculable for ever before and aftein terms of the mechanical movements of atoms and molecules and all is calculable for ever before and after.

Vanquished today by mechanical force, in the future we will be able to overcome by a superior mechanical force.

By fiddling with the cytoskeletons of real - life hydras, researchers found that the pond polyps rely on mechanical forces as well as molecular cues to regenerate head and tentacles in the right places (SN: 3/4/17, p. 19).

Bioengineer David Kaplan at Tufts University's Department of Biomedical Engineering, who had no role in these findings, calls the work «fantastic» and adds future research might want the bioreactor to mimic the same range of mechanical forces this bone will see if implanted — for instance, for the jaw joint, «you'd want it to experience compression and torsion.»

This mechanical forcing applied to the whole planet causes strong currents in the outer core, which is made up of a liquid iron alloy of very low viscosity.

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.

The group is now pursuing studies that couple the mechanical forces of a blast, or pressure wave, to the activation of chemical - signaling pathways in neural cells.

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 biofilIn 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 biofilin 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.

In a mix of bacteria that interact with each other to different degrees, the cells sorted themselves according to the mechanical forces they exerted among one another.

Inserting magnetic droplets at different locations in the tissue, and generating forces by applying a magnetic field to the droplets, the researchers showed that the tissue behaves like a fluid while growing, with similar mechanical characteristics as thick honey.

«In a way, one must learn to see things from the molecules» point of view, considering forces such as random thermal motion that one would never consider when building an agricultural water pump or any other mechanical device.»

By exposing a magnetically responsive droplet (purple) to a magnetic field, the scientists are able to exert pressure on the surrounding embryonic cells in order to study their response to mechanical forces

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.

Folds or wrinkles in a surface are the result of mechanical instability — compression forces applied to some part of the material.

And the impact of mechanical forces on development is being increasingly studied in a variety of organisms, Goentoro says.

But there may be a way to cut drag force by almost 30 %, according to computer simulations of turbulent ocean - water flows reported in the 19 May issue of Science by mechanical engineer Yiqing Du of the Massachusetts Institute of Technology and applied mathematician George Karniadakis of Brown University.

«Recently, mechanical forces have been increasingly found to play a role in development and tissue regulation,» she says.

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.

The scientists had produced mechanical defects in the particles first in simulations by high - power computers and then, in reality, with the measurement tip of a scanning force microscope.

A very sensitive force - measuring technique uses ultracold rubidium atoms in an optical cavity as a mechanical oscillator.

Existing experimental evidence showed that mechanical forces were at play in the changes in both fibrosis and cancer and that these forces were important to their development and progression but could not explain the long - ranging changes cells were able to produce to change their environments.

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 contracIn 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 contracin these cells, making them more likely to contract.

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

Until recently, it was unclear how the physical pressure of a light touch gets transduced from a mechanical force to an electrical nerve signal in Merkel discs.

In 2014, Gu's research team overturned the common assumption that transduction from the mechanical force takes place at the endings of the sensory nerves in Merkel discIn 2014, Gu's research team overturned the common assumption that transduction from the mechanical force takes place at the endings of the sensory nerves in Merkel discin Merkel discs.

What is most impressive about the chip, says Michael Shuler, a biomedical engineer at Cornell University in Ithaca, New York, is that it mimicked not just the physiology of the lung, but also the mechanical forces that act on lung cells as the chest expands and contracts with each breath.

As in the case of motor vehicle engines, they transform thermal energy into mechanical force, and our modern lifestyle would be impossible without them.

Until now, most babies have been put on a mechanical ventilator which forces air in and out of the lungs.

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

Kamrin set out to write the simplest equation he could think of that would represent granular flows, to see whether the equation, and the mechanical relationships it defines, could also reproduce the simplified picture assumed in resistive force theory.

By isolating mechanical and biological variables one by one in vitro, Mooney and his research team have discovered how the physical forces and chemical environment in those dense tissues can drive cells into a dangerously invasive, proliferating mode.

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 DentistrIn 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 Dentistrin 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 Dentistrin the Department of Orthodontics at the UI College of Dentistry.

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.

It doesn't know whether the force is purely another command that should be amplified or «bounced» force due to muscle co-contraction,» said Jun Ueda, Gallagher's advisor and a professor in the Woodruff School of Mechanical Engineering.

But in return, electronic EAPs can react quickly and deliver strong mechanical forces.

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.

Knowing how cells exert force and sense mechanical feedback in their microenvironment is crucial to understanding how they activate a wide range of cellular functions, such as cell reproduction, differentiation and adhesion — basic physiological processes that underlie embryo development, tumor metastasis, wound healing and many other aspects of human health and disease.