Sentences with phrase «number of molecules in»

The device measures the number of alcohol molecules it can «see» versus the total number of molecules in the sample, and then calculates a percentage.

There exist the same number of molecules in the cylinder, regardless of the volume.

(If you did the same experiment with, say, only 5 molecules in one chamber and 1 in the other, then while most of the times [on average 5/6] that you tried the experiment you would see the number of molecules in the high pressure chamber decrease and the number in the other increase, if you ran the experiment enough times you would in fact see a case where the 1 molecule in the low pressure chamber went into the high - pressure chamber so that the flow went the «wrong way».

That results in higher density and heavier air which must then fall.The same number of molecules in a smaller space.

Joules Verne says: January 24, 2012 at 8:07 am...» The fewer molecules must have sufficient gravitational energy that, if it were converted to kinetic energy, would be able to raise the temperature of a larger number of molecules in the lower layer the temperature in that lower layer.

where N is the number of molecules in the volume V, k is Boltzmann's constant, and T is the temperature in degrees Kelvin.

The fewer molecules must have sufficient gravitational energy that, if it were converted to kinetic energy, would be able to raise the temperature of a larger number of molecules in the lower layer the temperature in that lower layer.

On a picky note: Burning carbon does not change the number of molecules in the atmosphere as each CO2 substitutes for an oxygen.

He decided to study very large patterns, which can be found in huge data sets, such as the number of molecules in the human body or the number of someone's Facebook friends.

We will not only evaluate the eye for disease, but also measure a large number of molecules in the urine that may be used as a foundation for future medical tests for AMD.

Whether being lesser than CO2 in number of molecules in the atmosphere, methane is a potent greenhouse gas absorbing more infra - red radiation per molecule than CO2.

Our goal is to make biology quantitative, because a fundamental goal of biology is to know the absolute number of molecules in a cell.

However, the Nobel prizewinners worked mainly with large numbers of molecules in solution, Joachim says, whereas the researchers in this race are focusing on the interactions between single molecules and solid surfaces.

Not exact matches

His analysis of the idea of molecular structure from «first principles» shows that if one starts from a description of the molecule as an isolated, dynamical system consisting of the number of electrons and nuclei implied by the stoichiometric formula that interact via electromagnetic forces, one can not even calculate the most important parameters in chemistry, namely, those that describe the molecular structure.8

Looking outwardly upon universalisms» blackness is the samething thing as looking inwardly past the veiled molecules to see what has been scientifically gestured to be «atomic» nebulas in an atomically designated Cosmos,,,,,,,, you know their fathers (plural) as being but one celestial universe within untold numbers of celestial universes within the Celestial Cosmos.

In this sense an atom is more complex than an electron, a molecule more complex than an atom, and a living cell more complex than the highest chemical nuclei of which it is composed, the difference depending (on this I insist) not only on the number and diversity of the elements included in each case, but at least as much on the number and correlative variety of the links formed between these elementIn this sense an atom is more complex than an electron, a molecule more complex than an atom, and a living cell more complex than the highest chemical nuclei of which it is composed, the difference depending (on this I insist) not only on the number and diversity of the elements included in each case, but at least as much on the number and correlative variety of the links formed between these elementin each case, but at least as much on the number and correlative variety of the links formed between these elements.

If we now consider the number of the stars (15,000 x 106 visible to the optical telescope alone) you will understand how it is possible to say, cosmically speaking, that we are enveloped in a sort of monstrous gas formed of molecules as heavy as the Sun moving at distances from each other so great that they have to be reckoned in light - years (bearing in mind that light travels at a speed of 186,000 miles per second, and that we are only 8 light - minutes distant from the sun)-- a gas made of stars!

A number of individual genes have been linked to suicide, such as those involved in the brain's response to mood - lifting serotonin, and a signalling molecule called brain - derived neurotrophic factor (BDNF), which regulates the brain's response to stress.

And maps of slow - moving neutrons collected by NASA's Lunar Prospector, which orbited the moon in 1998 and 1999, suggested a number of craters are rich in hydrogen, though it was not clear whether the hydrogen was bound in water molecules or was present in some other form.

The molecule that shuttles proteins between the nucleus and cytoplasm, XPO1 (also called CRM1,) has been implicated in multiple sclerosis and a number of other diseases.

The idea of making transgenic drugs occurred to a number of scientists during the mid-1980s, when the new industry began to wrestle with the challenge of making complex proteins: ensuring that these big molecules were folded into the proper shape and that they had all their sugars in the right places on the surface of the proteins» amino acids.

In fact, because of symmetry properties unique to the number 60, it may be the most perfecty spherical, edgeless molecule possible.

Toxicants like solvents, pesticides or volatile molecules from oil spills can travel straight into the brain via the olfactory receptors — nasal neurons that number in the many millions, thickly studding the inner lining of the nose.

For example, formation of the mitotic spindle significantly depletes the numbers of free tubulin molecules in the soluble phase of the cytoplasm.

Using a molecule that attaches selectively to neurons in this slurry, researchers could count the number of neurons in each bit of brain real estate.

A team of researchers, led by the University of Minnesota, has invented a new soap molecule made from renewable sources that could dramatically reduce the number of chemicals in cleaning products and their impact on the environment.

A new study of fremanezumab, an immunotherapy that counteracts one of the molecules released during migraine, was found successful in reducing the number of days that chronic migraine sufferers experienced headaches.

Usually, in small - molecule junctions, electrons «pushed» through the junction by the applied bias make the leap continuously, from one electrode into the other, so that the number of electrons on the molecule at each instant of time is not well - defined.

Adjusting the numbers of various types of molecule in the environment seem to improve the chances of self - replicating life generating spontaneously

In terms of fuel, it's better to start with a higher carbon number molecule.

But in rare cases molecules with an even number of electrons can behave like radicals, because the arrangement of their atoms prevents all the electrons from finding partners with which to pair up.

Taking their cue from nature, where structurally well - defined biopolymers are the norm, e.g. in DNA and genes where slight variations to the order of a small number of organic molecules gives rise to the diverse spectrum of life, they have developed a self - sorting strategy that regulates the order molecules take when forming long chain polymers.

Mice without Del - 1 that had been induced to get EAE also had significantly higher numbers of inflammatory cells in their spinal cords at the disease's peak, a fact that further experiments revealed was due to increased levels of the signaling molecule IL - 17.

The probable release of water molecules from the hydration layer of ions caused by cluster formation may result in an increased number of degrees of freedom of the system.

As the microbes metabolize food, they produce an astonishing number of small molecules, chemicals and hormones that circulate in a host and can influence health in an animal.

«I had been playing with ideas on how to enhance the dispersability of this molecule for a number of years,» said Perlman, who has more than 100 patents and pending patents on inventions he has made in his years at Brandeis.

In the brain, however, the researchers found that MHCI immune molecules are one of the only known factors that limit the density of synapses, ensuring that synapses form in the appropriate numbers necessary to support healthy brain functioIn the brain, however, the researchers found that MHCI immune molecules are one of the only known factors that limit the density of synapses, ensuring that synapses form in the appropriate numbers necessary to support healthy brain functioin the appropriate numbers necessary to support healthy brain function.

«We've been looking to nature for a while to find complex molecules for use in a number of consumer electronics applications,» says Dwight Seferos, an associate professor in U of T's Department of Chemistry and Canada Research Chair in Polymer Nanotechnology.

Further experiments revealed that modulating activity of ATP synthase with J147 changes the levels of a number of other molecules - including levels of ATP itself - and leads to healthier, more stable mitochondria throughout aging and in disease.

«We look for activity of our molecules in phase 2, and on numerous occasions we generate statistically significant data with relatively small numbers of patients, which gives us reasonable confidence that the program will be successful in phase 3 with a larger group of patients.

Remarkably, giving animals injections of lithium salts — which mimics WNT signaling by inhibiting the molecule GSK3 — or giving animals a more specific GSK inhibitor, the researchers were able to restore normal synapse and spine numbers and also improve some of the most significant psychiatric - like behavioral abnormalities in these mice.

In the study, researchers used the blood of seven people who survived Ebola Bundibugyo virus infection during the 2007 outbreak in Uganda to isolate a large number of B cells that produce antibodies, which are the small protein molecules capable of inactivating the viruIn the study, researchers used the blood of seven people who survived Ebola Bundibugyo virus infection during the 2007 outbreak in Uganda to isolate a large number of B cells that produce antibodies, which are the small protein molecules capable of inactivating the viruin Uganda to isolate a large number of B cells that produce antibodies, which are the small protein molecules capable of inactivating the virus.

In the earths atmosphere, pressure, which is related to the number of molecules per unit volume, decreases exponentially with altitude.

Geoff has worked on a number of ground - breaking research projects to identify adverse health effects in wildlife and the molecules responsible.

They suspect that the way the olfactory system is organized has little to do with how an organic chemist might organize molecules (for instance, by the number of carbon atoms on each molecule); instead, it more closely resembles the complex way that chemicals are associated in the real world.

«Imagine the complexity of all the enormous number of possible arrangements of atoms in DNA or any other biologically active molecule.

Numbers of migrating cells, shown in red, are greatly reduced when the molecule FOX01 is deleted (right column).

Joe Reiss, vice president of marketing at manufacturer American Science and Engineering (AS&E) in Billerica, Mass., says low - atomic - number elements such as carbon, oxygen, hydrogen and nitrogen — common constituents of explosives — create a strong scattering effect visible in images that operators monitor on a screen yet discernible from the organic molecules in the human body.

Carbon dioxide concentrations in the atmosphere are measured in parts per million, the number of molecules of carbon dioxide there are in every million molecules of air.

Researchers are currently testing a number of theories that link ageing to biochemical defects, in particular damage to important molecules such as DNA.