Sentences with phrase «average effect over time»

It will never be that obvious of course because we are considering a net average effect over time but the mental image may be helpful.

Not exact matches

To track the effect of the video game on real - life fruit and vegetable consumption at baseline and six months later, researchers completed 24 - hour dietary recalls with children over the phone three times, averaging breakfast, lunch, snack, and dinner fruit and vegetable intakes.

RECENT STUDY ON ADVERSE EFFECTS OF LOW SODIUM INTAKE About the same time that U.S. health officials announced their new initiative to reduce salt intake, The Lancet published a large population - based study which showed persuasively that the risk of mortality and serious cardiovascular events increases significantly when salt intake drops below 3000 mg per day (two - thirds teaspoon) in an adult of average weight.3 The study also found that sodium intake in excess of seven grams per day (over three teaspoons salt) was associated with an increased risk in those with hypertension, but not in those without hypertension.

There was a significant time - pulse dose group interaction effect on average daily satiety ratings, where satiety ratings were highest in the group receiving 0.5 c / d, particularly over the first 3 wk.

To isolate the effects of an SFJ on districts within each poverty quartile, we focus on changes in spending over time within specific school districts after taking into account changes from year to year in average education spending across all of the nation's school districts.

The most promising models they found are incentive pay programs employing a group incentive design which «produce an effect over two times the average study in our sample... which lends support to the shared nature of teaching and learning hypothesis.»

Assessment capable learning has an effect size of 1.44, way above the average effect of.40 which constitutes approximately one year's growth over one year's time (Hattie, 2009).

Believe it or not, but dollar cost averaging has a negative effect on your portfolio allocation, which can diminish returns over time.

The effect should average out over time, albeit imperfectly.

It is for this reason that some financial advisors suggest pumping your funds into the markets gradually over time using the process known as dollar - cost - averaging; the idea being to lessen the potential effect of sheer bad timing.

Over time, this can have the effect of lowering the average cost of your investments compared to lump sum investing.

The effect of the 2007 cooling on the average global temperature over time was to negate the hardly unusual increase of a little more than one degree centigrade since about the 1890's.

The average temperature each year fluctuates by a considerable amount and to see an effect one has to average over some period of time just as the technical analysts of the stock market look at the moving average over some number of day to discern trends.

As to the 500 million year assessment, there was no significant ice for most of the time and any temporary effect is averaged out over the eons.

They discovered that this bottom pressure torque in Drake Passage had an effect more than 10 times larger than the average effect of wind blowing over the ACC at the surface.

From this post I get the impression the climate scientists measuring the average conditions of weather at discreet time intervals and following the change in the average over time is a very limited approach seeking to identify causes and effects, when we have known for a long time the major inputs in the climate such as insolation, orbital characteristics, evaporation, condensation and etc..

Finally, the fact that both the oceans and the atmosphere are at their all time highest temperatures over the past 10 year average from instrument record and through extrapolation to near - term paleodata, we can see a remarkable consistent effect of what increasing greenhouse gases do to overall alterations in Earth's non-tectonic energy storage.

In a system such as the climate, we can never include enough variables to describe the actual system on all relevant length scales (e.g. the butterfly effect — MICROSCOPIC perturbations grow exponentially in time to drive the system to completely different states over macroscopic time) so the best that we can often do is model it as a complex nonlinear set of ordinary differential equations with stochastic noise terms — a generalized Langevin equation or generalized Master equation, as it were — and average behaviors over what one hopes is a spanning set of butterfly - wing perturbations to assess whether or not the resulting system trajectories fill the available phase space uniformly or perhaps are restricted or constrained in some way.

Remember that Parker has published trends for 290 stations over 50 years from which he concludes, and I assume Neal King agrees, means we have no UHI effect «on average» over tose stations and time period.

Parker's null effect was in searching for a trend in UHI: an increase over time, globally, to see if that could be used as an alternative explanation for the increase in global average temperature.

The net effect of such compensations is that averages over larger areas or longer time scales commonly will give smaller estimates of change.

I just published a post on my blog about the interaction of CO2 and average global temps over geologic time and it seems that CO2 has had very little effect on those temps.

Bias corrections which are stable over time will have a big effect on time averages, but no effect on trends.

To compare this with AGW, AR5 Table AII.2 yields an annual average year - round and global forcing increase averaged over the last 30 years of +0.026 Wm ^ -2 / year, many times higher than the part - year, part - globe CSI which is also a small part of the insolation changes over the last 1,000 years, an effect which is adjudged, with or without any omission, to be insignificant in comparison to AGW.

I'm not sure anyone is saying that there is only a single input variable, just that the effects of other variables may be small or average out over time periods of decades.

Likewise, things that effect the coupling of a sensor to a measured process can introduce errors in observations that do not average out over time.

The difference is that natural effects average out to zero (as you showed earlier) over longer time periods.

Until climatologists can properly make models that reflect the entire global history and take into account plate position and how high the plates ride, oceanic levels due to this and the position of oceans, overall insolation, overall daylength and its effects on average global temperature and factor in known carbon dioxide levels over that time period, then they will be unable to give any correlation between current carbon dioxide levels and global temperature.

http://illconsidered.blogspot.com/2006/04/historically-co2-never-causes.html 100 years of shift does not factor into the larger scale phenomena http://illconsidered.blogspot.com/2006/01/one-hundred-years-is-not-enough.html Until climatologists can properly make models that reflect the entire global history and take into account plate position and how high the plates ride, oceanic levels due to this and the position of oceans, overall insolation, overall daylength and its effects on average global temperature and factor in known carbon dioxide levels over that time period, then they will be unable to give any correlation between current carbon dioxide levels and global temperature.

Since the solubility is a non-linear function of temperature, it matters, and you could possibly get some sort of effect from changes in distribution of temperatures (over time or location) without changing the average.

Take out a mortgage on a unit for this price, compared to paying the average monthly rent for a 2 - bedroom apartment in the city, $ 4,042, and buying does become cheaper over time — but crunch the numbers, and it'll take you 11 years into a 30 - year mortgage before you start to see savings take effect.

So on average, we help clients get past some problems and improve their well - being, with some fading of effects over time from a single dose of therapy.

To compare longitudinally the average change in each group and to take into account the dependence between the siblings, we used linear mixed effects models with two random effects (for dependence over time and over siblings).