Sentences with phrase «studied these models over»

As we have studied these models over the years, one commonality has become very clear.

Not exact matches

OTTAWA — A five - year $ 50 - billion public infrastructure spending initiative would generate a return on investment to Canadians over the long term as high as $ 3.83 per dollar spent, trigger significant private sector investment and stimulate wage increases, according to a new study by an independent economic modelling firm.
What we do have through the Niebuhr - Williams - Gustafson study, as through its predecessors, is clear evidence of the power of the «Berlin» Wissenschaft - cum - professional school model of excellence in schooling over North American theological schools.
I can't even begin to list all the brands and models that I studied and deliberated over.
Gordon wrote on many topics: angling techniques («The fly must be placed to an inch as the fish will rarely take it unless it floats over them just right»), the books he read, the effects of drought and floods on fish, the seasons of the year («The silence of the snows is over all the land, and the bright waters of our trout streams run almost black between icy banks») and his belief in the natural fly as a model for the artificial («The insect must be studied and many patterns dressed before one can hope to satisfy the critical eyes of the trout»).
Most of the studies that have produced the craze over PRP have been done using animal models.
The strongest research methods for psychological studies are: qualitative findings versus quantitative; experimental rather than descriptive or correlational; controlled - experiment, meta - analysis, and observation designs over archival, case study, computational modeling, content analysis, field experiment, interview, neuroimaging, quasi experiment, self - report inventory, random sample survey, or twin study; and prospective (where subjects are recruited prior to the proposed independent effects being administered) and longitudinal (where subjects are studied at multiple time points) rather than retrospective or cross-section study.
Analysis of mean percentage changes in bone mineral density over time from the two study baselines consisted of a repeated measure model.
It's the latest twist in a bitter battle over a 4 - year study that the government once praised for its «highly participatory approach» and that outside experts see as a model for other nations.
If these studies are closer to the true picture, models might be giving us accurate answers for warming over the next few decades, but underestimating warming over the next few centuries and more.
«We determined we need to be irrigating at 75 percent of our past ET levels as estimated with the current model and finding hybrids that better tolerate stress,» Brauer said, adding this was from studies conducted by Xu and Marek over several years.
When scientists use climate models for attribution studies, they first run simulations with estimates of only «natural» climate influences over the past 100 years, such as changes in solar output and major volcanic eruptions.
William and Stillwell chose to study green roofs over other forms of green infrastructure for a very simple reason: There was one on campus fitted with the instrumentation needed to measure soil moisture, rainfall amount, temperature, humidity and many other variables that are plugged into their fragility curve model.
«However, these studies were either carried out in the laboratory over short timescales or based on theoretical models.
Using the model, McHale and Baker could work out the most likely outcome of any English football match played over the 124 year study period — and use the results to calculate which was the all - time greatest team.
The team of scientists involved in this study «dropped» virtual oil particles into the NEMO ocean model and tracked where they ended up over a three month period.
And the trouble with extrapolating so much from mouse studies is that «nobody has actually shown over the long term how long these quote un-quote improvements persist, and we don't know whether it's broadly improving aspects of aging or it's specific to certain tissues,» said Matt Kaeberlein, a biologist who studies aging in dogs and other animal models at the University of Washington.
This has been suggested in earlier studies based on numerical and analytical models, however, it had not yet been shown to have occurred over geologic times in the real world.
Professor Friedlingstein, who is an expert in global carbon cycle studies added: «Current land carbon cycle models do not show this increase over the last 50 years, perhaps because these models underestimate emerging drought effects on tropical ecosystems.»
A daily pill to prevent HIV infection can reduce new cases among men who have sex with men (MSM) by a third in the U.S. over the next 10 years, according to a new modeling study published in The Journal of Infectious Diseases and available online.
In five other studies published over the past year, Taffe, Dickerson and their laboratories have looked at the effects of MDPV and a related «bath salts» cathinone derivative, mephedrone, in a range of animal models.
«The beauty of the deep - learning model we use is that it considers emotions and linguistic clues over time to predict the future,» says computer scientist Svitlana Volkova, who led the study, which was published last December in PLOS ONE.
In a separate study, Neil Ferguson and colleagues at Imperial College, London, have modelled herd immunity across the region as a whole, and calculated that the current epidemic will be largely over in three years.
The study tracked the journeys of over five billion model «larvae» from 636 remote reefs scattered across the central and eastern Pacific Ocean over a 14 and a half year period.
«By looking at the decline in fish food over time, we can estimate how much our total potential fisheries catch could be reduced,» said Moore, who helped develop the Community Earth System Model employed in this study.
Jan Storå, who holds the senior position on this study, reflects over the history of the material: «This burial was excavated in the 1880ies and has served as a model of a professional Viking warrior ever since.
In their modelling study, the authors combine clinical information collected in a primary care (general practice) surveillance scheme over 14 years in England and Wales with information on social contacts, and with information on immunity to flu viruses in the population.
Dr Sottile added: «This new system gave us an advantage over previous rodent models as we could study more accurately how specifically human cells would be affected by a decrease in temperature.
«I ended up pushing a larger percentage of my research portfolio over towards these parallel computing model studies
The other two shortlisted missions — which had been whittled down from an original list of over 20 possibilities — were CoReH2O, which sought to model the water balance in glaciers and snow - covered areas, and PREMIER, which aimed to study chemical processes in the upper troposphere and lower stratosphere and the radiative effects of clouds.
To study the suitability of guanabenz as a therapeutic after MS symptoms have already appeared and peaked, the researchers used a mouse model in which symptoms relapse and remit — cycling from high severity to low severity to high again over time.
A study published in March modeled nutrient cycling across the globe to predict how much carbon plants could sequester over the next 100 years when nutrient limitations are taken into account.
A recent report from the parliamentary budget officer estimates that a universal, public pharmacare system would save Canadians more than $ 4 billion per year while this study suggests that applying Quebec's private - public model in all provinces would cost Canadians over $ 5 - billion more per year than they currently pay.
While ADNI researchers use maps such as these to study the pattern and range of degeneration among groups of patients over time, this model could also be used to monitor the progress of the disease in a single patient.
In the study, the fungal infection Candida albicans was introduced to mice or human models of the lung vasculature and as blood was pumped over that system, researchers recorded what happened using highly sophisticated microscopes.
Based on meta - analysis of over 100 studies of transmembrane cell - surface receptors, as well as his own research, Prof. Maruyama proposed a new model for receptor activation — the «rotation model
Previous studies have used a variety of computer models and data from fossils and flood events to argue that ENSO has become more exaggerated over the past 11,000 years, known as the Holocene period.
Settling the debate over the first flower will take a bigger database and more - sophisticated models, says Wenheng Zhang, who studies plant evolution at Virginia Commonwealth University in Richmond.
The participants were M.I.T.'s Alan Guth, the developer of the inflationary model of the universe, Lawrence Krauss, a frequent contributor to Scientific American magazine and director of the Origins Initiative at Arizona State University, John Carlstrom from the University of Chicago, who studies the cosmic microwave background radiation left over from the big bang and Scott Dodelson of the Fermi National Accelerator Laboratory, who studies the origin and structure of the universe.
«Many studies have looked at average snowfall over a season in climate models, but there's less known about these very heavy snowfalls,» says study author Paul O'Gorman, an associate professor in MIT's Department of Earth, Atmospheric and Planetary Sciences.
«The study provides more realistic modeling estimates of how much vegetation change will occur over the 21st century and will allow better predictions of future climate change,» she said.
O'Gorman studied daily snowfall across the Northern Hemisphere using 20 different climate models, each of which projected climate change over a 100 - year period, given certain levels of greenhouse gas emissions.
But over the last three years Rosner's group has used computer simulations to study the model in great detail.
Since 2003, Kevin Hall, PhD — a physicist turned metabolism researcher at the National Institute of Diabetes and Digestive and Kidney Diseases — has been using data from dozens of controlled feeding studies conducted over decades of nutrition research to build mathematical models of how different nutrients affect human metabolism and body weight.
The results of the first study using a health economics model to project osteoporosis - related fractures and costs for the Chinese population, shows that the country's healthcare system will face a dramatic rise in costs over the next few decades.
There are some caveats with their study: The global climate models (GCMs) do not reproduce the 1930 - 1940 Arctic warm event very well, and the geographical differences in a limited number of grid - boxes in the observations and the GCMs may have been erased through taking the average value over the 90 - degree sectors.
One of the data sets came from researchers studying a mouse tumour model, to discover how the microenvironment adapts and responds to a tumour over time, both locally and in the draining lymph node.
The scientists then used statistical models to evaluate the distribution of cancer - linked DNA in the patients» blood samples over the seven - year study to find the largest degree of differences between patients with low and high levels of evidence of hypermethylation in their DNA.
This study integrates the complementary information preserved in the global database of borehole temperatures [Huang et al., 2000], the 20th century meteorological record [Jones et al., 1999], and an annually resolved multi proxy model [Mann et al., 1999] for a more complete picture of the Northern Hemisphere temperature change over the past five centuries.
They suggest that future studies incorporating animal models of childhood obesity take place over longer periods to determine how inactivity during youth contributes to adult consequences of obesity and whether interventions, such as reintroducing exercise, can affect this trajectory.
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