Sentences with phrase «number variations per»
Scherer and his colleagues, who included population geneticist Matthew Hurles of the Wellcome Trust Sanger Institute in Cambridge, England, followed up with a higher - resolution CNV study in 2006, which analyzed DNA from 270 individuals and identified an average of 47 copy number variations per person.
https://www.scientificamerican.com/ Not exact matches
Another likely important variable that adds to the challenge of this sort of research is the variation in proportion of calories provided and number of nursing sessions per day.
For former donors, the better performing segments in terms of amount raised or number of donations per email sent tended to be the ones where we showed history and did not offer schwag, although there was some variation in the results.
The survey shows for example within the EU, there is a x5 variation in the number of kidney donors per country (per head of population).
They found that 10 per cent of these children have copy number variations (CNVs) affecting genes deemed clinically relevant.
Two groups of researchers published the first genome - wide CNV maps, which illustrated that variation in gene quantity is actually quite common: each group found about 12 copy number imbalances per person.
Finally, we investigated the total number of fixed differences per window, which is not dependent on a within - population component of variation.
Embryo - fetal development studies carried out on mice and rats also observed a reduced number of pups per litter, reduced pup weight at birth, and an increased frequency of skeletal «variations» in pups after pregnant females were given high doses of DEP.
They also fail to mention that although the incoming solar radiation only varies by a couple of Watts per square metre over a solar cycle the apparent smallness of the variation is a result of the small area subdivision and not any indication of a small total energy variation when one takes into account the number of square metres on the Earth's surface.
A global catalogue of catastrophe losses was constructed (MuirWood et al., 2006), normalised to account for changes that have resulted from variations in wealth and the number and value of properties located in the path of the catastrophes... Once the data were normalised, a small statistically significant trend was found for an increase in annual catastrophe loss since 1970 of 2 % per year.
Lately, scientists have been relying on natural variation as a defense against the hiatus — so over time this number might increase — maybe even to.2 C per decade.
Given the small number of cases per year, and the large amount of variation from year to year, no gradual increase is discernable.
Although there is some variation in the numbers, most experts agree that once you hit 40 - 50 transactions per year, your production will be capped at that level unless you hire an assistant or someone else to help you manage your business.