Sentences with phrase «variation in the particular group»

There's random error in student test scores; there's random variation in the particular group of teachers who complete a program in a given year; there's random variation in where those teachers end up working; and there's random variation in how responsive their students are.

Not exact matches

This tool, described in a paper published April 18 in Nature Biotechnology, is designed to help researchers identify groups of genetic variations that together associate with a particular way cancer cells get activated, or how they respond to certain treatments.

At Harvard, where he got his Ph.D., Wells studied fruit flies with Richard Lewontin and became interested in understanding the reasons for genetic variation within a particular group.

But C1b in itself is very diverse — as its members spread throughout Central and South America, smaller groups became isolated from one another and started developing their own particular genetic variations.

His group gives particular thought to ways in which scientists document and describe the nonrandom pattern of human genetic variation and its link to disease risks in different populations.

In particular, cranial capacity variation in human populations appears to be largely a function of climate, so, for example, the full range of average capacities is seen in Native American groups, as they historically occupied the full range of latitudes [18In particular, cranial capacity variation in human populations appears to be largely a function of climate, so, for example, the full range of average capacities is seen in Native American groups, as they historically occupied the full range of latitudes [18in human populations appears to be largely a function of climate, so, for example, the full range of average capacities is seen in Native American groups, as they historically occupied the full range of latitudes [18in Native American groups, as they historically occupied the full range of latitudes [18].

Other than the absence of refined foods, evidence suggests that there is enormous variation in Paleolithic diets, often depending on the specific environment where a particular group lived.

None were printed in editions, but the prints fall into distinct groups of variations arising from particular plates — overpainted impressions from the same plate, or sequential proofs from a plate as it was reworked, or both.