Sentences with phrase «tested their model against»

However, Singleton said he has tested his model against historical data from the crisis year, yielding a 16 percent return against a 38 percent slump in the S&P index.

Seismologists are also beginning to test their models against new earthquakes as they occur.

«Its existence was predicted by the standard model of particle physics and the fact that there's — we got a glimpse of it, it looks like it may very well be there — is a real victory for that model of science where you test, you put forward conceptual models of the way the world or the universe works and test those models against the observations and see the extent to which they can predict new observations and when they do, it gives you increased confidence in the models.

By testing their model against historical data, they found their production forecasts were more accurate than those of both peak oilers, who are traditionally too pessimistic, and authorities such as the US Energy Information Administration, which is generally far too optimistic.

His computer models were able to learn, so Seung wondered if there might be a way to test those models against the actual connectome to see if Hebb's assumptions were right.

They tested the model against regional forest mortality observations from scientific forest plots, aerial surveys done by the U.S. Forest Service, and satellite measurements.

There'll be a mass of data to test the models against — a really big signal - to - noise ratio in a few decades time.

Testing models against the existing instrumental record suggested CO2 must cause global warming, because the models could not simulate what had already happened unless the extra CO2 was added to the model.

Tom appears challenged by the idea of building global climate models based on atmospheric physics and doing years of testing those models against actual data.

It's critical to test the models against real data, which is much easier when we have global high - res coverage like OCO - 2.

There'll be a mass of data to test the models against — a really big signal - to - noise ratio in a few decades time.

Tom appears challenged by the idea of building global climate models based on atmospheric physics and doing years of testing those models against actual data.

They tested their model against the Earth's temperature records since 1850 — and then ran it again, this time with a hypothetical forest - free world.

Testing models against the existing instrumental record suggested CO2 must cause global warming, because the models could not simulate what had already happened unless the extra CO2 was added to the model.

Not exact matches

Of course one could argue that the model was not back tested far enough and needs to be back tested against a larger amount of time but it is interesting none the less.

Scientific models lead to theories which can be tested against observations.

They tested high - performance computational models against known geological and geophysical observations of the Central Anatolian Plateau, and demonstrated that a drip of lithospheric material below the surface can account for the measured elevation changes across the region.

The researchers tested the technique against melanoma in a mouse model.

Using the calibrated models, the researchers then applied NIRS to a random mix of mosquitoes and checked the results against validation tests using mosquito extracts for molecular detection of strain - specific Wolbachia DNA to determine accuracy.

Model simulations can always be improved by testing predictions against field data collected from different ecosystems, and Sulman and Phillips are doing just that: investigating how roots influence soil decomposition and protected forms of carbon in forests that vary in the composition of tree and microbial communities.

Marshall and her colleagues used visual modelling to test how conspicuous individual lizards would be to a bird's eye against the backgrounds they had chosen to sit on.

Exploiting the same pre-clinical model used for their studies, the researchers are testing the efficacy of this kind of drug candidates against cancer stem cells, and the possibility of identifying combination regimens with standard chemotherapies with minimized toxic effects, with the perspective of their possible application for the treatment of human breast cancer.

Based on the results of that test, Beaty and colleagues developed a predictive model and tested against brain scan data collected for earlier studies on creativity.

In fact, the way science progresses is by conceptual models being put forward and then testing them against observations.

The revised estimate for sea - level rise comes from including new processes in the 3 - dimensional ice sheet model, and testing them against past episodes of high sea - levels and ice retreat.

In the study, the researchers systematically tested 30 different wheat crop models against field experiments in which growing season mean temperatures ranged from 15 °C to 26 °C.

The next step will be to demonstrate efficacy in larger animal models, as well as test whether this approach can be used to protect against or treat other diseases.

In order to understand how El Niño responds to various climate forces, researchers test model predictions of past El Niño changes against actual records of past ENSO activity.

Cruse and Metcalfe tested their therapy on mast cells in vitro — where it eliminated activation of mast cells by allergen — and against allergic dermatitis in vivo, using a mouse model.

The models need to be tested against observations, to make way for new and improved models.

In a 1988 paper summarizing his findings, Fiebig concluded that xenograft mice were wonderful models for broadly testing new drugs against human tumors, but they «can not be used as a clinical routine method» for predicting patient treatment.1 The idea of using xenograft mice as personal avatars for cancer patients was discarded.

From at least Lorius et al (1991)-- when we first had reasonable estimates of the greenhouse gases from the ice cores, to an upcoming paper by Schneider von Deimling et al, where they test a multi-model ensemble (1000 members) against LGM data to conclude that models with sensitivities greater than about 4.3 ºC can't match the data.

Presumably in this case you'd start with a model that's already been tested against a lot of data and thus serves as a compact proxy for that information.

Based on their expertise in immunology and pathology and the available infection models, vaccines against most relevant viral and bacterial animal infections can be tested.

We can't wait for 30 years to see if a model is any good or not; models are tested against the past, against what we know happened.

Our search for these key benchmarks against which brown dwarf and exoplanet atmosphere models are tested has yielded the largest number of discoveries to date.

Using a new mouse model, we propose to test whether the spread of tangles through the brain is a result of abnormal tau overwhelming the cell's ability to clear it and whether we can boost cell defenses against tangles using clinically approved drugs that have not been used for this purpose previously.

Professor England's study has been tested against climate models, and indeed just the trade winds could account for the missing heat.

The research offers new hope in the fight against many neurological conditions because scientists expect that such a transformation — or reprogramming — of cells may lead to better models for testing drugs for devastating neurodegenerative conditions such as Alzheimer's disease.

To test for differences in growth rates between genotypes, we fit the data using linear models regressing larval weight against age and tested for differences in the interaction term between larval age and genotype using ANCOVA and post hoc comparisons of the slopes of fitted lines using lstrends (HH and lsmeans packages).

With this knowledge, computer models can measure millions of potential drug molecules against the tau protein, giving immediate clues to suggest which should be tested further.

This environment, designated the Virtual Environment for Reactor Applications (VERA), incorporates science - based models, state - of - the - art numerical methods, modern computational science and engineering practices, and uncertainty quantification (UQ) and validation against data from operating pressurized water reactors (PWRs), single - effect experiments, and integral tests.

This model was then tested against the historical record.

These common properties strengthen our ability to constrain theoretical models and / or to determine fundamental parameters, such as stellar mass, metal fraction, and distance when tested against an ensemble of cluster stars.

These common properties strengthen our ability to constrain stellar models and asteroseismically derived $ M$, $ R$ and $ g $ when tested against an ensemble of cluster stars.

Inhibiting LYP in patients may increase regulatory immune cells and could confer protection against autoimmunity, but it remains to be tested if our promising findings in this mouse model are reflected in humans,» says Dr. Kissler.

We assessed all statistical interactions by using likelihood ratio tests against a model without the relevant interaction term.

The first thread integrates the geological record of past environmental changes to quantify our understanding of the past and provide data sets against which to test the models used to make projections of future global change.

Potential Mechanisms Many hypotheses have been proposed as to how fiber might protect against colon cancer development; these hypotheses have been tested primarily in animal models.

When we look to test - based evidence — and look no further — to decide whether choice «works,» we are making two rather extraordinary, unquestioned assumptions: that the sole purpose of schooling is to raise test scores, and that district schools have a place of privilege against which all other models must justify themselves.