Sentences with phrase «as tracers of»

Because the galaxies we use as tracers of the Hubble expansion will disappear.

«It turns out that the contribution of star - forming galaxies as tracers of the mass distribution in the distant universe is not negligible,» said Dr. Utsumi.

Weak lensing is a phenomenon that provides a powerful technique for mapping the changing contribution of star - forming galaxies as tracers of the cosmic web.

Deeper redshift surveys combined with similar weak lensing maps should reveal an even greater contribution of star - forming galaxies as tracers of the matter distribution in this higher redshift range.

Iron can fuel plankton blooms and influence how the ocean responds to climate change, while the lead images show the impact of past pollution on the ocean and continuing contamination in some parts of the world and aluminium is used as a tracer of desert dust inputs to the ocean.

«Using oxygen as a tracer of galactic evolution.»

I - 129 does have significant value as a tracer of movement of fission products through the environment and the biosphere, since any of it you find was created in the last 60 years and the quantity is essentially unchanged in that time.

Koch, D., and D. Rind, 1998: Beryllium 10 / beryllium 7 as a tracer of stratospheric transport.

Not exact matches

At the Challenge Festival, startups like as BaseTrace, which «uses DNA - based tracers to track where industrial fluids are going in large, complex environments» and Reliefwatch, a cloud - based system that uses smartphone technology to track inventory and diseases for healthcare organizations in the developing world, battled it out on stage for a grand prize of $ 150,000 in investment.

Using a small amount of a radioactive substance as a tracer, the scientists focused on the brain's mu - opioid system in which chemicals called endogenous opioids bind to receptors and hinder the spread of pain messages in the brain.

Bowern counters that the «instability» of words can actually be a boon, serving as a tracer for how languages change over time.

«If we find that lymphoscintigrams using tilmanocept are at least as good as the conventional radiocolloid tracer in identification and visualization of sentinel nodes, we would like to see a randomised clinical trial involving large numbers of patients,» says Prof de Bree.

Matthias Raab, the programme manager of the site, tells me, euphemistically, that using the tracers «is highly experimental» — in other words, it is not clear that noble gases behave as CO2 does.

First witnessed in Jupiter's clouds as rare flashes of scattered light by Voyager 1 in its 1979 flyby and observed decades later by the Galileo orbiter, Jupiter's lightning is thought to be an indirect tracer of the planet's water content.

The first - in - human PET / CT imaging of 75 patients with 18F - MPG was performed to show that this tracer can be used as a companion diagnostic to identify NSCLC patients with EGFR activating mutant tumors (primary tumor or metastatic) with 84.3 % accuracy.

It is also possible to use the way the gravity of clusters of galaxies distort more distant background galaxies, weak gravitational lensing, as another tracer.

Ozone — a variety of oxygen — is one such molecule, and is seen as one of the possible tracers that may allow us to detect life on another planet from afar.

The Hiroshima group combined these two tracers: galaxies and their weak lensing signal to map the changing role of massive star - forming galaxies as the universe evolves.

PET scans which use fluorodeoxyglucose (FDG) as a tracer can be used for neuronal loss, and are useful when a reliable short - term prediction of cognitive decline is needed.

Using a combination of scanning techniques (positron emission tomography (PET) and computed tomography (CT)-RRB-, the researchers were able to track the progress of the tracer as it moved around the body.

«Halogens like chlorine or bromine are added to the water as a tracer for the movement of soil - water.

Then the scientists calculated the amount of gas dissolved over the millennia, using the helium - 3 isotope as a tracer.

The image displays the rotation curve tracers used in the publication over a photograph of the disc of the Milky Way as seen from the Southern Hemisphere.

«Almost all of the fruit salads we analyzed contained levels of the tracer organism, which we were representing as being salmonella,» said Randy Phebus, professor of food safety at Kansas State University and one of the authors of the study «Consumer Food Handling Practices Lead to Cross-Contamination,» recently published in the journal Food Protection Trends.

Briceño has found that sucralose can potentially be used not just as a tracer — which flags a potential problem — but also as an indicator, which means it can help to determine the extent of the problem.

The prevalences and isotope ratios of the noble, or inert, gases, such as neon, argon, krypton and xenon, provide a valuable tracer of ancient processes, because they are chemically nonreactive and so do not change much over time.

They will provide the synthesis of tracer particles, consultation regarding analysis of the industrial partners, and particle analysis as a service at INM.

CMIIT will provide researchers with needed education and training on the «nuts and bolts» of translating and transitioning an agent or technique from pre-clinical research into the clinical practice such as tracer development, equipment, and funding.

The rotation curve tracers used in the paper over a photo of the disc of the Milky Way as seen from the Southern Hemisphere.

As he stated himself, he was interested in using tracers in the brain as they provided the possibility of taking objective measurements in real timAs he stated himself, he was interested in using tracers in the brain as they provided the possibility of taking objective measurements in real timas they provided the possibility of taking objective measurements in real time.

The first step in these trials would look at the distribution and potential toxicity of the radioactive manganese chloride used as a tracer.

The DOTA conjugates and some of their corresponding metal complexes retained good CXCR4 affinity, and one 68Ga - labeled compound (35) was further studied as a PET tracer.

Other uses of new chemical technologies include tracers and reporters for geomapping and well connectivity, as well as different types of fluid loss agents that prevent formation damage or keep well integrity, and smart and stimuli - responsive nanoparticles that can be used for improving gelation.

Title: Validation of 11C - ORM - 13070 as a PET tracer for a2C - adrenoceptors in the human brain Author: J. Lehto et al..

My first research efforts as an independent scientist were aimed at the development of high - sensitivity MR tracers (dubbed hyperpolarized agents) to map perfusion in healthy tissues and tumors.

Oceanographers use substances called tracers to study the path and rate of ocean currents and of processes such as mixing that are important parts of the global ocean and climate systems.

In biological systems, carbon - 14 (14C) can be used as a biochemical tracer to track micro-doses of nutrients, toxins and therapeutics in humans and animals...

Many technological innovations for diagnosis and treatment are expected to reach the clinic following validation, such as video - assisted thoracic surgery, sensitive imaging techniques, use of tracer gases, regenerative medicine (e.g. in lung transplantation), nanoparticle - based carriers of inhalational drugs or bioactive compounds, personalised medicine (especially for lung cancer), bronchoplasty, laser energy as a surgical tool, and metabolic imaging techniques.

The assay employs a highly specific antiserum (gift from Dr. C. E. Gomez - Sanchez, Columbia, MO), [3H] cortisol as assay tracer, and dextran - coated charcoal for separation of bound and free hormone.

She has explored this theory using «tracer» molecules that follow the paths of brain cells to see how one brain area connects to another, watching as the medial preoptic area extends into the song control areas.

This study makes the first direct comparison between the optical emission line and the ultraviolet and infrared tracers of star formation and indicates that, despite the underlying uncertainties, astronomers can trust the nebular emission lines as robust indicators of the star - formation rate and the amount of light that is obscured by dust in distant galaxies.

We supplemented these data with measurements of conservative tracers of water sources as well as proxies of biological processes.

For tracer injections into the visual Wulst, application coordinates were determined relative to the prominent bifurcation of the Y - sinus [27] as an initial reference.

Use of stable isotope tracers would also be of particular value as they would allow for in vivo assessments of post-treatment alterations various aspects of hepatic metabolism including glucose metabolism, fat oxidation and VLDL - kinetics which have been shown to be altered by acute periods of ER.101 Increased Stress Resistance

Unthinkably, he was allowed to slip back into effective anonymity (his best role of the past decade was a «Seinfeld» appearance as a Javert - like tracer of unreturned library books).

Perhaps a bit of trimming may have been in order, as a story this devoid of substance doesn't require a nearly two - hour run time, especially when there are at least two unnecessary and largely unfunny subplots (anything having to do with the skip tracer and the hitmen brings the comic momentum to a screeching halt) that continue to rear their ugly heads just when the comedy begins to hit something close to a stride.

More than just a great visual trick in the second game, and aside from just being part of the past two games, it has become a franchise icon; a poetic representation of a sword slashing through the air as the ninja wielding it disappears — the scarf's trail a tracer marking only their disappearance.

The Red Guys stand out in the white, clinical looking environments, as do the red tracer lines of the bullets, as well as the black bullets, weapons and objects.

Black tendrils of null - space leave ghostly tracers as Orbital Frames fold time, warping instantly from one target to the next.

The concentration of 14C in CO serves as another tracer for the OH inventory [Manning et al., 2005].