Sentences with phrase «period changes in the variable»

For variables which are the cumulative sum of random disturbances the proper statistical analysis should be in terms of the period - to - period changes in the variable.

Not exact matches

The change in load cell output occurring with time, while under load, and with all environmental conditions and other variables remaining constant; usually measured with Rated Load applied and expressed as a percent of Rated Output over a specific period of time.

In collaboration with many researchers (graduate students, postdocs, and faculty elsewhere), we have examined the role of cross-immunity on the evolution and dynamics of influenza; the impact of behavioral changes, long periods of infectiousness, variable infectivity, co-infections, prostitution, social networks, and vaccine efficacy on HIV dynamics; the role of exogenous re-infection, variable progression rates, vaccination, public transportation, close and casual contacts on tuberculosis dynamics and control; the impact of life - history vector dynamics on dengue epidemics; and on the identification of time - response scales for epidemics of foot and mouth disease.

In 2008, Chile launched its first National Climate Change Action Plan, for the period from 2008 to 2014, to gather information on what was happening in the country, identify the baselines for emissions cuts and measure other key variableIn 2008, Chile launched its first National Climate Change Action Plan, for the period from 2008 to 2014, to gather information on what was happening in the country, identify the baselines for emissions cuts and measure other key variablein the country, identify the baselines for emissions cuts and measure other key variables.

At local scales and over shorter periods, annual streamflow responds to seasonal changes in climate variables (e.g., temperature, precipitation) and related processes such as evapotranspiration.

After over a year of sideways and downward movement from late 2015 through early 2017, the most recent NASA report shows that over the past year an acceleration in sea level rise has become visible on the NASA graph, even with just a quick glance (then again, while the long term trend is consistently upward, the annual trend is so variable, that it's likely foolish on my part to suggest a change in trend based on the most recent periods of increase which have only been occurring for less than 12 months).

Let's say a period exists where, for example, three variables are holding steady and one is changing, and the climate change appears to have, in that period, a fairly direct relationship to the one changing variable, it would surely lead one to suggest that, had this variable not moved, the climate probably would have remained steady.

With nearly all variables I've ever used, including ice extent and temperatures, the lagged dependent variables have large negative coefficients, since changes one period tend to lead to «movement to the mean» in the next period.

He presents us again and again with a single variable over a 541 million year period in a graph that ignores other changes that are an order of magnitude more significant.

Many variables — rainfall, sea surface temperature, fisheries, cyclone frequency — all are observed in empirical evidence — hard data — to change abruptly and for lessor or longer periods.

Taking all this into consideration it is evident there are variable rates of change and the current era has similarity to the rates of change in the recent, pre satellite period.

Projections mid-century show changes in variables related to temperature: increased growing degree days, cooling degree days, and frost free period along with decreased heating degree days and precipitation as snow.

Indeed writing a variable u (x, t) like a sum of µ (T) + u» (x, t) where µ (T) is the time average of u (x, t) over a period T and u» (x, t) is a fluctuation or «residual» is a perfectly legitimate change of variable in a deterministic equation defining the dynamics of a system (here N - S).

Another recent study, by scientists from the U.K., Hawaii and Massachusetts, concluded that «marine and freshwater assemblages have always experienced variable pH conditions,» and that «in many freshwater lakes, pH changes that are orders of magnitude greater than those projected for the 22nd - century oceans can occur over periods of hours.

For example, in the forthcoming U.K. Climate Impacts Program (UKCIP08) scenarios that Lenny refers to (and in which I'm involved), we plan to supply information on changes in a number of climate variables, at a range of space and time scales, for different periods during the twenty - first century.

It's possible to change many variables in adjustable rate plans including the «face value» or «total value» of the policy as well as the coverage period or the amount paid each month.

In most term life insurance policies, the amount of premium to be paid for an agreed period of time usually does not change but this is very variable.

For the treatment period, the primary analysis for continuous measures was an analysis of variance using the slope of change in the primary variables as the outcome measures and center, treatment, negative affect subtype, and all interactions as the independent measures.

While these two variables — how much the interest rate will change and over what period of time — remain uncertain in each cycle, what is absolutely certain is that interest rates will rise and drop over time as the interest rate cycle completes itself.

If we look at these 8 year periods in which unemployment drastically changed, could we not name dozens of events, variables and reasons that contributed to the drop in unemployment?