Sentences with phrase «long measurement periods»

Most of our investments have characteristics that have been associated empirically with above - average investment rates of return over long measurement periods: a low stock price in relation to book value, a low price - to - earnings ratio, a low price - to - cash - flow ratio, an above - average dividend yield, a low price - to - sales ratio compared to other companies in the same industry, a significant pattern of purchases by insiders, a significant decline in share price.

Over long measurement periods ranging between 13 and 28 years, all of these value managers significantly outperformed the market as measured by the Dow Jones Industrial Average and the S&P 500; however, all, with the exception of Warren Buffett went through periods of underperformance relative to these benchmarks, sometimes consecutive years of underperformance, ranging from one to six years.

To be fair, these are only one - year figures: a longer measurement period should be used for these types of comparisons.

Not exact matches

In their November 2017 paper entitled «Tail Risk Mitigation with Managed Volatility Strategies», Anna Dreyer and Stefan Hubrich examine usefulness of managing volatility in this way as applied to the S&P 500 Index over a long sample period and across a range of performance measurements.

They all show roughly the same pattern of increasing CO2.50 years is not a long time period And the CO2 measurements carry no definitive anthropogenic fingerprints.

Panel - based measurement provides excellent insight into visitor demographics, what consumers do across all of the websites they visit and analysis over long time periods.

Other tools in the researchers» arsenal were high - resolution tracking, which provided information about how the manta rays used the lagoon habitat over long and short periods of time; an acoustic camera, which logged patterns of the animals entrances and departures from the lagoons; and photo identification / laser photogrammetry — making measurements from photographs — which provided insight into whether the manta rays were staying in this habitat for longer time periods by tracking their comings and goings.

This, explains Greco, facilitates the measurement of electrophysiological signals of patients and athletes over a longer period without restricting or influencing their normal activities.

The end of the universe's «dark age» was long and drawn out, according to the first direct measurement of the period when the first stars and galaxies heated up intergalactic gas.

Here, the long time series shows that the surface water layers became up to 1.5 per mill less saline during the measurement period.

DeVries and fellow researchers Mark Holzer of the University of New South Wales in Sydney and François Primeau of UC Irvine compiled existing oceanographic tracer data — measurements of temperature, salinity, CFCs (humanmade gases that dissolve into the ocean) and carbon - 14 — and separated it into three decade - long time periods: the 1980s, the 1990s and the 2000s.

«Even more interesting is that as satellite measurements continue and so as the datasets get longer, we will be able to recalculate our metric over longer time periods to investigate how and if ecosystem sensitivity to climate variability is changing over time.»

This is the first time that toxicological measurements have been combined with a population study carried out over such a long period in the Antarctic and Subantarctic.

Howarth places heavy weight on the value of an analysis of satellite measurements, saying it provides better data than aircraft measurements over a longer period of time.

Also, it is recommended that measurements be taken over longer periods of time such as a week (rather than daily) as significant variations in weight can occur simply based on water intake or time of day.

Unlike most forms of exercise that are based on exercising slow - muscle fiber, aerobically for long time periods within the endurance energy system in a calories - in and calories - out measurement system, Sprint 8 incorporates numerous new studies that achieves significantly greater benefits in 20 minutes three days a week.

In their November 2017 paper entitled «Tail Risk Mitigation with Managed Volatility Strategies», Anna Dreyer and Stefan Hubrich examine usefulness of managing volatility in this way as applied to the S&P 500 Index over a long sample period and across a range of performance measurements.

And third, the transition from solar maximum in the first half to a particularly deep and long solar minimum in the second half of the period — this is evidenced by measurements of solar activity, but can explain only part of the slowdown (about one third according to our correlation analysis).

Standard error involves both natural variability (including that not well understood because it operates on long time scales, and therefore has not been observed during the period of modern technology) as well as measurement error (or error / uncertainty in the proxies).

This post indicates that the long term OLR measurements covered by the CERES and AIRS [over a period from ~ 2003 to 2012] show a decrease in total OLR.

However, longer term OLR measurements [over a period from the early 1990's to 2013] indicate an increase in in total OLR of ~ 30 %.

Satellite observations may have resolved many of the spacial / temporal resolution issues surrounding proxy measurements of earlier periods there is a long way to go before we have sufficient data suitable for prediction.

For November to be warmer than the long - term average in the troposphere, we would have had to see solar output increase over the measurement period (it has not), or sensible or latent heat to be higher than average (it is not, in fact we ware in a ENSO neutral or cool PDO situation), or we would have to see GH gases having an effect.

Almost any average temperature you wish depending on how you slice it and none of it has meaning except in the case that you slice it exactly the same way over successive measurements over a long period of time might tell you something.

The climate of a place or region is changed if over an extended period (typically decades or longer) there is a statistically significant change in measurements of either the mean state or variability of the climate for that place or region.

In this work, we aim to evaluate the long - term evolution of BHMF over a period covering the past twenty - two solar cycles by using measurements of the cosmogenic 44Ti activity (τ1 ∕ 2 = 59.2 ± 0.6 yr) measured in 20 meteorites which fell between 1766 and 2001.

I think that for samples with low count rates the practice may be to perform the measurement over longer periods, in which case the Gaussian approximation will hold to a greater age than it otherwise would do so.

Nic and Pekka, I would also caution about the difficulties in estimating the persistence of CO2 in the atmosphere from direct measurements, as long as you have processes with latencies that are much longer than the observation period.

I agree with you that the last decade really doesn't tell you that much about the long term trends, given the size of the error bars, but it does allow for some interesting analysis of the difference between individual temperature records during that period (e.g. ENSO responses of satellites vs. surface measurements, effects of different ways of treating arctic temperatures, etc.).

TSI is directly correlated with sunspot numbers, and the long and deep solar minimum we just came through where the sun was blank for long periods of time would necessarily mean that TSI was also lower for an extended period of time This is not what the measurements show.

Note that I am not necessarily claiming that this is the feedback operating on the long time scales associated with global warming — only that it is the average feedback involved in the climate fluctuations occurring during the period when the satellite was making its measurements.

What do the satellite outgoing long wave radiation measurements show over that period of time?

Unfortunately, what we determined that the supposed «normal» distribution of weather data using long period data like 50 and 100 year thermometer measurements produced what is known as a FAT TAIL distribution... Imagine the classical bell curve sitting on top of a rectangle laying on its side.

-- There are no natural mechanisms that could have changed the net flux as much as ANF on the average over long periods up to the whole history of Mauna Loa measurements.

cheap measurement, only wide band IR cameras are needed up there and as many ground sources emitting low energy long period pseudo random sequences at specific narrow thermal IR frequency bands as the world can afford, with built in GPS tracking and some communication abilities.

Google and Microsoft both have data centers that sit at around 1.22, but many factors go into the calculation and measurements need to be taken over a long period of time and conditions to get an accurate PUE rating.

Our apparently contradictory GUS finding may reflect measurement of events over a longer time period, and their impact on children's feelings, rather than on parenting behaviour - especially as our measures of parent - child relationships (unlike those in the UK Millennium Cohort Study) are child - reported, and involve older children.