Sentence examples for artificial caused from inspiring English sources

This correlation, however, is somehow artificial, caused mostly by the fact that our set contains several relatively small molecules, and on the other side also rather large molecules, about which, as already discussed, chemists agree very well on.

Though nitrous oxide is not regulated under the Montreal Protocol, the 1987 agreement to limit emissions of ozone-depleting chemicals, the researchers say it is emerging as the leading artificial cause of ozone loss.

Finally, natural and artificial causes of the change in the object area were examined by comparing the satellite data analysis results with meteorological data and auxiliary sources.

By the time Europeans arrived on the continents in the late 15th and early 16th centuries, however, many of these civilizations had ceased to function, due to various natural and artificial causes.

Counting mutations would be somewhat too simplistic because some mutations at certain positions may be very unstable (because of a site-specific mutation rate that is well above average) and therefore provide little evidence in favor of an artificial cause rather than natural evolution.

An internal control was introduced to exclude any false-negative test resulting from artificial causes.

In the nineteen-sixties, several animal studies suggested that cyclamates, a class of artificial sweetener, caused chromosomal abnormalities and cancer.

Forty years ago saccharin and cyclamates came under scrutiny after a study found that the combined artificial sweeteners caused cancer in laboratory rats.

In 1933 the French husband-and-wife team of Frédéric and Irène Joliot-Curie discovered artificial radioactivity caused by alpha particles (helium nuclei).

He warned collectors to watch out for overly neat drilling marks, flat bases, cute pronged tails and artificial stains caused by vinegar, peat moss and hydrochloric acid.

So it's hard to distinguish a genuine shift toward Mr. Romney, from a real but potentially temporary shift based on changes in voter enthusiasm, from an artificial change caused by a bias toward heavy news consumers.