Sentences with phrase «statistical studies say»

There is no evident proof that Atkins diet is effective beyond 6 months as statistical studies say that the Atkins diet produced a greater weight loss for the first six months, but the difference was not significant at one year.

Not exact matches

Recent news says that Mozilla released data collected from a statistical study on the impact of adding a bitcoin button on the main campaign donation page.

Though that seems to be a reasonable conclusion, the associated statistical analyses seem «inadequate,» says Sarah Millar, a dermatologist who studies hair at the University of Pennsylvania Perelman School of Medicine, in an email to Science.

«This is the first time we have a population that's really well - characterized so we can do a statistical study and understand Earth analogs out there,» Thompson said.

But the evidence for an overall imbalance of the directions of cosmic rays in this new study is stronger, surpassing the so - called five sigma threshold for statistical significance, says Antonio Bueno, an astroparticle physicist at the University of Granada in Spain and co-spokesperson for the 500 - member Auger team.

«The feeling ultimately relies on the same statistical computations a computer would make,» says Professor Adam Kepecs, a neuroscientist at Cold Spring Harbor Laboratory (CSHL) and lead author of the new study.

Early - career scientists should also seek advice on statistical analysis when designing studies, Fowler says.

He says the study is an example of Simpson's Paradox, the statistical phenomenon that an aggregated set of data looks different when it is broken down.

But Jacob Taylor, a physicist at the National Institute of Standards and Technology in Gaithersburg, Maryland, says it provides experimental data for «a quiet revolution» in statistical physics, the study of how heat flows both in microscopic systems and on the scale of everyday life.

The results had high statistical significance, and Baeten said both drugs worked «comparably» in uninfected men and women, although he would not specify the number of infections by gender in different arms of the study.

The new method will be invaluable for statistical studies of large numbers of galaxies, says Laura Ferrarese of Rutgers University in Piscataway, New Jersey, co-discoverer of the velocity dispersion correlation.

«We wanted to evaluate whether the absence of female faculty members in physics departments is an appropriate measure of women's progress in physics,» said Susan White, research manager in the Statistical Research Center (SRC) at AIP, who conducted the study with Rachel Ivie, associate director of the SRC.

That said, it may be that studies so far haven't had the statistical power to really «see» a difference.

«Using innovative data normalization and gene selection approaches, we combined the statistical power of multiple genomic studies and masked their variability and batch effects to identify robust early diagnostic biomarkers of pancreatic cancer,» said first author Manoj Bhasin, PhD, Co-Director of BIDMC's Genomics, Proteomics, Bioinformatics and Systems Biology Center and Assistant Professor of Medicine at HMS.

But past studies of potential lunar effects have been tainted by statistical weaknesses, biases, or inconsistent methods, Cajochen says.

«It was only through our detailed anatomical and statistical comparisons of the skull bones that we were able to distinguish between Albertavenator and Troodon,» said Thomas Cullen, a Ph.D. student of Evans at the University of Toronto and co-author of the study.

«This is a very large scale study using a new, innovative statistical method,» said study co-senior author Kenneth S. Kendler, M.D., professor of psychiatry, and human and molecular genetics in the Virginia Commonwealth University School of Medicine, and an internationally recognized psychiatric geneticist.

Calibration is the agreement between the predicted risk and actual outcomes on average, and across the spectrum of predicted risk — from low to high, said Mark E. Cohen, PhD, one of the study's authors and a statistical manager in the ACS Division of Research and Optimal Patient Care.

Critics have pounced on the study, which they say has serious statistical and other problems.

«This is the first really solid statistical study I've seen which shows principles about language decline that we've know about, but hadn't been able to put together in a sound way,» says Leanne Hinton, a linguist at the University of California, Berkeley.

The researchers say this new statistical insight will be helpful in developing coarser - grained ocean simulations that aren't as computationally expensive as the one used in this study.

In this study, researchers performed magnetic resonance imaging on 106 boys between the ages of 10 to 19 who were seeking treatment for Internet gaming disorder, a psychological condition that the Diagnostic and Statistical Manual of Mental Disorders (DSM - 5) says warrants further research.

The causes of such unpredictable results, Harris said, can include bad ingredients in the lab, including contaminated and misidentified cell lines; poor research design, including insufficient numbers of mice in animal studies; statistical error and overreach, including «HARKing» (hypothesizing after the results are known), a push beyond the limits of the data; and funding pressures, which can lead scientists to hype or exaggerate their results to remain competitive for additional grant money.

The study has solid geographical sampling, and the team's statistical analysis of two DNA genomes — mitochondrial and nuclear — shows pretty good evidence for the new species, says Bryan Stuart, a curator of herpetology at the North Carolina Museum of Natural Sciences in Raleigh, who was not involved in the work.

Gilean McVean, who studies statistical genetics at the University of Oxford University in the United Kingdom, says much stronger data are needed to make the case that nutritional signals are transmitted through epigenetics.

«Our studies confirmed that statistical relationship, but at the same time showed that people with faith are more prosocial and empathic,» he said.

The study, funded by the Kansas Agricultural Experiment Station, is the first to quantify all of these impacts (climate change, disease and genetic improvement) using a unique data set, and state - of - the - art statistical methods, Barkley said.

The sequencing and statistical techniques the team developed can also be used by others studying regulation of stem cells in other tissues, organ systems or organisms, he said.

It took two decades to collect enough bones for the study and then several more years to figure out the statistical methods needed to analyze the radiocarbon data, Mann said.

Update: Six French scientific academies issued a statement on 19 October, saying the Séralini study could not reverse previous conclusions that this and other GM crops are safe, because of problems with the experimental design, statistical analysis and animals used, and inadequate data.

Kudenchuk said the study is an important step toward elucidating potential benefits of antiarrhythmic drugs for out - of - hospital cardiac arrest, but the size of the study may have been insufficient to establish these benefits with greater statistical certainty.

«Statistical method on gravitationally lensed quasars have been known to be sensitive to the expansion history of the universe,» Masashi Chiba, Professor at Tohoku University, says, «therefore actively studied by Japanese researchers in the 1990s.

For example, if I'm studying lymphoma, and I know that a subset of Asian breeds shares a common lineage, I could group data from those breeds together, rather than considering them separately, in order to gain more statistical power,» she said.

What Greger is saying is that one type of statistical study design is generally inappropriate for testing one aspect of diet - heart: namely, the connection between diet and serum biomarkers such as the LDL fraction.

The team says their paper, «What Happens After You Both Swipe Right: A Statistical Description of Mobile Dating Communications» is one of the first large scale quantitative studies to look at the way mobile dating sites are used.

When Hasse said that, the statistical debate revolved around studies of performance in individual states, and each side could find evidence to support its position.

Just recently, the American Statistical Association said: «Most VAM studies find that teachers account for about 1 % to 14 % of the variability in test scores, and that the majority of opportunities for quality improvement are found in the system - level conditions.

So... I'm describing this slide show to the other professional writers at lunch, and I (the mathematician's daughter who grew up on a steady diet of statistical analysis and probabilities [my father's two favorite subjects]-RRB- hear myself say, «Digital Book World asked this guy to examine the impact of ebook sales on hardcover sales, making the study flawed in the first place.»

Boyd says insurers started using credit - based insurance scoring in the early 1990s when FICO conducted studies with insurers that showed a statistical correlation between a person's credit and his or her likelihood of filing an insurance claim.

Hand said the study gave him an «uneasy feeling» because it used «inappropriate statistical tools».

But of course Lewis wouldn't want to contact the authors if he thought they might say something like «Yeah, we discussed it, and we decided all the sensitivity studies should use similar statistical assumptions» or «On reflection, the choice we made in 2006 seems unwise to us now» or, worse of all, «We don't think they should have changed the analysis, but it doesn't effect our results in any substantial way.»

As to Jones» supposed challenge to construct a global temperature index, I said that to do such a job to the standard that I expected is something that would required detailed technical studies of many sites, is something that is more properly done by a statistical service, would take several years and is not something that I'm interested in doing.

That's like saying «There are thirty - five tobacco studies; thirty - three of them show a dramatic statistical significance between smoking and cancer; two of them are equivocal.

Because the temperature gradient in a planet's troposphere is the state of thermodynamic equilibrium which the Second Law of Thermodynamics says will evolve, the planet's supported surface temperature is autonomously warmer than its mean radiating temperature, so warm in fact on Earth that we need radiating gases (mostly water vapour) to reduce the gradient and thus cool the surface from a mean of about 300K to about 288K, this being confirmed by empirical evidence (as in the study in my book) which confirms with statistical significance that water vapour cools rather than warms, all these facts thus debunking the greenhouse conjecture.

This so - called «meta - analysis» allows scientists to draw statistical significance from the combined studies even when a single study might not be considered conclusive — in much the same sense that no single weather event can be said to result from climate change but the statistical trend indicates that more extreme weather events will become more frequent in a warming world.

«As home visiting programs go to scale, states should consider replicating this study using their administrative data and appropriate statistical methods to create a robust comparison group capable of generating rigorous findings regarding the effects of early intervention efforts on child maltreatment rates,» said Dr. Deborah Daro, Senior Research Fellow at Chapin Hall at the University of Chicago.