Sentences with phrase «intervals of several years»

This would be achieved by harvesting existing perennial plants at intervals of several years and replacing them with much more productive varieties developed by plant breeders.

The others followed by an interval of several years, the Fourth Gospel probably coming down into the early part of the second century.

Not exact matches

We calculated these transition probabilities using data from the longitudinal National Health and Nutrition Evaluation Survey, which assessed a cohort of women in 1987 and the same women again in 1992.25 Several limitations of these data affect our model: 1) because this national survey lacks data on women before age 35 years, women in our model could not develop hypertension, type 2 diabetes mellitus, or MI before age 35 years; 2) because longitudinal survey data were only available for a 5 - year interval, we assumed that transition probabilities were stable within the 5 - year intervals and converted these probabilities from 5 - year to 1 - year intervals; 3) because the survey data were too few to provide stable estimates by year of age, we used transition probabilities for women in three age groups: aged 50 years and younger, 51 — 65 years, and 65 years and older.

«We showed that a single dose of Vorinostat could expose the hidden virus several years ago, but it has taken two studies over the last five years to define the proper interval dosing strategy to use Vorinostat safely and effectively,» said Nancie Archin Ph.D., lead author of this study and an assistant professor in the Division of Infectious Diseases at UNC.

In other pets the problem reoccurs at regular intervals of from every several days to several times a year.

«The drive train under development will feature a revolutionary power source allowing for extended time between charging intervals with the possibility of several years between charging.»

To do so, the work necessitated several years of field investigations to map exhaustively and to accurately date the occurrence of all individual fires per 100 year intervals over the last 2000 years.

The trend in peak hottest years starting in 1998 and continuing on through 2005, 2010, and now 2014 is roughly 0.1 C per decade, as is illustrated in the graphic shown below, which is an adaption of the Ed Hawkins graphic referenced by David Apell several weeks ago in a comment he posted in response to the «Spinning the «warmest year»» article... As shown in the above graphic, if a trend of peak hottest years starts in 1998 and is then extrapolated at a rate of +0.1 C per decade out to the year 2035, the extrapolated trend just skirts the lower boundary of the model ensemble range interval described by IPPC AR5 RCP (all 5 - 95 % range).

Over the past several years, the Bank has streamlined its production processes for the Monetary Policy Report and gradually reduced the interval between the release of the rate decision

This format is helpful if you spent several years in each type of position and didn't jump around from job to job in brief intervals.