Sentences with phrase «previous research estimates»

Previous research estimated that it covered much of western Canada as late as 12,500 years ago, but new data shows that large areas in the region were ice - free as early as 1,500 years earlier.

Not exact matches

The first conclusion they came too was expected and entirely in line with previous research: the more familiar we are with a particular route, the longer we estimate it to be.
A research note by analysts at KGI Securities, seen by Apple news site Apple Insider, estimated iPhone X shipments in the first quarter of 2018 were at around 18 million devices — a significant reduction on previous flagship iPhones.
Previous forecasts for job losses in a hard Brexit scenario have ranged from about 30,000 roles, estimated by the Brussels - based Bruegel research group, to up to 75,000 by Oliver Wyman and as many as 232,000 by the London Stock Exchange.
Heading into an earnings event, the toughest and most time - consuming part is researching historical price action and volatility surrounding previous events, understanding how the earnings were estimated in the eyes of Wall Street, then gauging the significance of any beat or miss.
The research, published in Nature Communications, finds that mining - related forest loss caused roughly 10 percent of all Amazon deforestation between 2005 and 2015, much higher than previous estimates.
By looking at the chemistry of rocks deposited during that time period, specifically coupled carbon and sulfur isotope data, a research team led by University of California, Riverside biogeochemists reports that oxygen - free and hydrogen sulfide - rich waters extended across roughly five percent of the global ocean during this major climatic perturbation — far more than the modern ocean's 0.1 percent but much less than previous estimates for this event.
After reviewing previous research on metacognition in education, Atwood and Casselman set out to design a system to help chemistry students accurately estimate their performance and make adjustments as necessary.
With this data, the WMAP research team calculated that the universe is 13.7 billion years old (plus or minus 1 percent) and determined that the first stars appeared 200 million years after the Big Bang, far earlier than most previous estimates.
A previous study estimated that the R2 of most ecological research ranges was between 0.02 and 0.05, but few researchers will publish results with such small explanatory power.
Then, she combined these data with results from previous research to estimate the carbon content of beaver meadows throughout the region.
From previous lunar research, they estimated that the top millimeter of regolith would be buried by meteoroid impacts after about a million years, so it would be too deep to be subject to electric charging during solar storms.
He said that while the desire for diversity is «a popular rallying cry in American religion,» previous research has shown that an estimated nine of 10 U.S. congregations contain more than 80 percent of one racial group, and almost half of the congregations in America are completely of one race.
While this number is higher than the previous estimate made in the late 1990s based on ground measurements, the new research includes data on more volcanoes, including some that scientists have never visited, and it is still lower than human emissions of sulfur dioxide pollution levels.
However, implementation of the regulation may require 54 million research animals and $ 9.5 billion ($ 13.4 billion) over the next 10 years, which represents 20 times the number of animals and six times the cost anticipated in previous estimates, according to an analysis led by researchers at the Johns Hopkins Bloomberg School of Public Health.
While previous methods used county - level slash data to estimate the amount of wood residue available as a feedstock, the new research reported in the journal Biomass and Bioenergy, uses more refined data on demand from individual sawmills, said Natalie Martinkus, one of the authors of the paper and an assistant professor in WSU's Composite Materials and Engineering Center.
Because accurately measuring individual glaciers is a challenge, previous research used the available data to make a consensus estimate of the world's glacier loss.
Combining the tallies in the two previous paragraphs reveals an estimate of the total amount of time devoted to using accountability, data, research, or technology as management tools.
Colleges can set these estimates as they deem fit, and previous research by me, Sara Goldrick - Rab of Temple University, and Braden Hosch of Stony Brook University shows a large amount of variation in living allowances among colleges in the same geographic area.
Via a research note, Citi analyst Mark Mahaney now thinks Amazon sold 500,000 Kindles last year, more than his previous estimate of 380,000.
The American Research Group estimates that the average shopper spent $ 929 for gifts in December ---- up 5 % over the previous year.
In fact, these fees are so obscure that Dēmos can only estimate them by assuming «given previous research» that they are equal to the stated expense ratio, thus the total fee level is twice what you thought it was.
The actual prevailing view of the paleoclimate research community that emerged during the early 1990s, when long - term proxy data became more widely available and it was possible to synthesize them into estimates of large - scale temperature changes in past centuries, was that the average temperature over the Northern Hemisphere varied by significantly less than 1 degree C in previous centuries (i.e., the variations in past centuries were small compared to the observed 20th century warming).
Building on earlier research showing the carbon payback time of biofuel crops grown on certain types of land, the new study uses «a new, geographically detailed database of crop locations and yields, along with updated vegetation and soil biomass estimates, to provide carbon payback estimates that are more regionally specific than those in previous studies,» write the authors.
Previous research (Gillett et al, 2012)[v] has shown that scaling factors based on a 1901 start date are more sensitive to end date than those starting in the middle of the 19th century, with temperatures in the first two decades of the 20th century having been anomalously low, so the 1861 — 2010 estimates are probably more reliable than the 1901 — 2010 ones.
If the reef in Australia is as sensitive to ocean acidification as was estimated by lead author Silverman, now of Israel Oceanographic & Limnological Research Ltd., in his previous work in Israel, then the increase in ocean acidification would be sufficient to explain the 40 percent decline.
New research shows that the amount of carbon stored in frozen soils at high latitudes is double previous estimates and could, if emitted as carbon dioxide and methane, lead to a significant increase in global temperatures by the end of this century.
This map, based on previous research, shows a model estimate of the average number of deaths per 1,000 square kilometers (386 square miles) per year due to fine particulate matter (PM2.5), a type of outdoor air pollution.
Digital reading is most definitely on the upswing Forrester Research estimates that 3 million e-readers will be sold in the US during 2009 (only a few days left to finish up that count), which is far more than the previous forecast of 2 million sold in 2009.
In addition, the enhanced detail of where and how much ice melted allowed the researchers to estimate that the annual acceleration in ice loss is much lower than previous research has suggested, roughly increasing by 8 billion tons every year.
There has been some controversy in the scientific community following publication of Snyder's research: several climate scientists told National Geographic that they felt Snyder's estimate of future temperature rise, far higher than many previous estimates, was an outlier, signaling that her methods were faulty.
The ozone losses predicted in the study are much larger than losses estimated in previous «nuclear winter» and «ultraviolet spring» scenario calculations following nuclear conflicts -LSB-...] A 1985 National Research Council Report predicted a global nuclear exchange involving thousands of megatons of explosions, rather than the 1.5 megatons assumed in the PNAS study, would deplete only 17 percent of the Northern Hemisphere's stratospheric ozone, which would recover by half in three years.
Industrial Agriculture's Negative Effects The report didn't go into wider - ranging effects of the industrial agriculture dominant in the US, such as loss of biodiversity, fertilizer run - off, etc. (and whether industrial agriculture is really the best method of raising food, the UN doesn't think so, and I suppose that's all a bit beyond the research brief here) but at least corn ethanol fares a bit better in this study than in previous estimates.
According to an unpublished paper co-authored last year by R. Mani Murali, a scientist from the National Institute of Oceanography (NIO), previous research has estimated a 3 mm per year rise in ocean levels at Mumbai, which would amount to 3 metres by 2100, flooding 40 % of the city proper, which has an area of 460 sq. km.
These estimates confirm previous work for some areas of the European Arctic, but for Siberia, the findings differ from previous research, which had suggested that contribution from gas flaring were much higher.
I was not timing the ad, but I have personally listened to several thousand audio ads as part of previous research and I estimated it as a 15 - second spot.
Recent survey data from Morning Consult, Edison Research and Radio Centre has suggested that previous device sales estimates were significantly understated.
Be prepared to justify your estimate with examples of your expertise and previous successes, as well as the market rate for your position that you researched earlier.
Previous research from the former waves of the Bergen Child Study (a longitudinal study nested within youth@hordaland) has also identified psychological problems as a predictor for non - participation.70 As the current sample may be skewed towards better socioeconomic status and psychological health, the results may be a conservative estimate of the number of adolescents growing up in poor families and their associated mental health problems.
This provides support for the previous research finding that nonrandom attrition in longitudinal studies may not significantly bias the model estimates (Lillard & Panis, 1998).
The research finds that the existing housing stock is in worse condition that previous estimates suggested and concludes that more than 10 million homes are physically inadequate, twice the total of previous estimates.
a b c d e f g h i j k l m n o p q r s t u v w x y z