Sentences with phrase «with tracer»

It is an absolutely incontrovertable result of LST (when applied to tracer measurements) that, when you start with a tracer that is in equilibrium throughout a system, and you apply an impulse to that tracer, the Impulse Response Function you measure with the tracer is exactly the same IRF that you would measure if you applied the impulse to the general system.

...» In contrast to prior approaches, the results are independent of tracer data but are shown to be qualitatively and quantitatively consistent with tracer - derived estimates.

Between surprise visits from bears, the scientists lassoed murres and injected them with tracer molecules to track their energy usage.

Scientists imaged more than 1,700 mouse brains (injected with a tracer virus) at resolutions less than a micrometer, or 50 times smaller than a human hair.

The screen will be peppered with stats and graphics, showing trajectory of the ball flight with tracer technology, listing TrackMan data during shots, and other stats for the week running down the side and bottom of the frame.

The good news is that we will shortly have both hitting shots in front of the cameras and with tracers and lasers measuring every yard.

So this week the team will inject 150 tonnes of CO2 into the aquifer, and compare its movements with the tracers.

Not exact matches

The link between depression and the immune system has been shown using positron emission tomography using a tracer for the translocator protein (TSPO) showing increased immune activation in the brains of patients with major depressive disorder compared with control subjects.

Countering Counterfeit Wine An invisible «tracer» mixed with paint, plastics or ink and applied to wine bottle closures, corks or labels is the latest high - technology product developed to counter the growing trend of counterfeit wine...

«The fact that the noble gases don't react with other elements makes them excellent tracers for understanding the geochemical evolution of Earth and its atmosphere,» Baldwin says.

Low background atmospheric concentrations, together with well - known and often distinct isotopic characteristics (variants of lead with different atomic weights) of industrial sources make lead an ideal tracer of industrial pollution.

So in 1991 and 1992 his team sprayed plots of red pine and oak in the Harvard Forest with water doped with nitrogen - 15, a tracer isotope.

Visible from North Carolina to upstate New York, the eerie trails were created by five suborbital NASA rockets that soared to altitudes of 50 to 80 miles, where they released chemical tracers that reacted with oxygen in the thin upper atmosphere.

Ecologists can now combine classic stable istopic tracers with any number of parameters, like temperature range, salinity, or newly discovered isotopic tracers.

Colleagues from the USA1 carried out a trial in which 83 patients with early stage HNSCC who were all scheduled to undergo neck dissection were injected with the novel tracer, tilmanocept.

When the results were compared with studies in the literature using standard radiocolloid tracers the researchers found that the SN biopsy using tilmanocept provided a high identification rate and low false negative rate for SNs, thus facilitating accurate prediction of the spread of the cancer.

C - TRACER will open with a staff of five scientists, 22 graduate students and six clinical researchers.

By using tracer chemicals in experiments with live garden warblers, the researchers followed a circuit of neurons from the cryptochrome molecules to the «cluster N» area of the brain, which is active during navigation, showing for the first time that cluster N uses information from the retina.

In the 1980s, positron emission tomography (PET) scans, which detect neural metabolism with radioactive tracers, snapped the first pictures of the brain in midthought.

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.

The researchers designed and synthesized a novel small molecule PET tracer, 18F - MPG, with high specificity to activating EGFR mutant kinase.

«We use arterial blood water as a contrast tracer to measure blood flow change, which is highly associated with brain function.»

They developed a radioactive tracer that, when injected into the body, binds with a key protein that is present in all synapses across the brain.

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.

Using spray cans, he spritzes the rock with a mist of brightchartreuse latex spheres, each the size of a bacterium, and then withan orange - colored chemical tracer.

The researchers now plan to further develop the tracer molecules by labeling them with radioisotopes, used during positron emission tomography (PET).

Using a tracer dye to follow pathways out from the auditory thalamus, LeDoux discovered a connection to the amygdala, an almond - shaped region in the forebrain long associated with emotional states.

A patient is injected with a radioactive tracer, and the cells that absorb it most readily glow bright.

This is the first study to examine and compare beta - amyloid buildup in the brain using the Amyvid amyloid PET imaging tracer between individuals with PPA and those with Alzheimer's memory dementia, the more common disease that causes memory problems.

At first, the contact tracers were met with some hostility; one town threatened to burn the ambulance some of the workers were traveling in.

«Seeing more with PET scans: New chemistry for medical imaging: Surprising new mechanism for attaching chemical tracers discovered.»

I've always thought our exposure to chemicals was nowhere comparable to that of a radiologist, for example, who deals with x-rays and radioactive tracers 10 hours a day.

The study compared the effectiveness of the new tracer with 11C - choline (already widely used for imaging prostate cancer) in two mouse models and also performed the first PET / CT scan with 11C - sarcosine of a human with prostate cancer.

«We worked with so - called tracer particles for our analyses,» Tobias Kraus from INM explained.

The research team tracked methane concentrations along with radon and radium, naturally occurring elements that serve as tracers for groundwater.

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.

At Toolik Lake, Paytan and her colleagues tracked methane concentrations concurrently with two naturally occurring elements (radon and radium) that serve as tracers for groundwater.

Nuclear yellow is a nuclear - specific DNA dye that can be combined with neuronal retrograde tracers, such as hydroxystilbamadine.

† This is obviously a critical tool for future research: the Michael J. Fox Foundation has recently stepped up with a $ 2 million prize for the first researcher to create a PET tracer for visualizing AS aggregates in the brain).

The stars in the stream are incredibly faint, so it was necessary to use a proxy technique to measure the speeds of brighter tracer objects moving along with the stream stars.

They observed L1551 NE in the emission from dust at a 0.9 - mm wavelength, a tracer of distribution of interstellar materials, and carbon monoxide molecular emission, which can be used to study gas motion with the Doppler Effect.

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

For colocalization of both tracers or one tracer together with ZENK signals, primary antibodies (Egr - 1 / ZENK, 1 ∶ 500; CtB, 1 ∶ 300 in PBS - T) were detected by an appropriate secondary antibody (polyclonal goat raised against rabbit IgG labeled with fluorescent dyes Alexa488; Molecular Probes Europe BV, Leiden, The Netherlands, 1 ∶ 400 in PBS - T).

B: Double - labeling of ZENK and the retrograde tracer BDA in sagittal brain sections at the level of Cluster N proves the correct placement of tracer into Cluster N: arrows point to examples of neurons displaying ZENK - immunoreactivity (shown in magenta) in the nucleus together with BDA (shown in green) in the somata.

He also worked closely with pharmaceutical partners to automate the immune - inflammatory tracer, [11C] PBR28.

Radiocarbon analyses of 14C in lipid biomarkers associated with marine plankton [14], and 13C - labeled bicarbonate tracer studies [15] suggest that marine Crenarchaeota are capable of light - independent autotrophic carbon assimilation into membrane lipid biomass, an hypothesis further strengthened by recent single cell phylogenetic identification and autoradiographic verification of carbon dioxide incorporation [16].

Under local anaesthesia (1 % Xylocaine) a resting biopsy from the vastus lateralis of one leg was obtained 3 h after commencement of the tracer infusion using a 5 - mm Bergstrom needle modified with suction, during the first trial only.

The shows are now available on DVD - R through Amazon's CreateSpace DVD on Demand, preserving the low - definition production values of streaming video (complete with motion stutter that looks like you're seeing tracers whenever some moves their arm suddenly).

Once the firefights break out, tracers whoop past with a sound like a whimpering child, and people die in left, right, centre, and rear speakers, under mortar fire that whomps gratifyingly from the subwoofer.

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.