Sentence examples for substances which we from inspiring English sources

Attached micro-organisms secrete extracellular polymeric substances, which we deduce must also provide an additional element of chemical adhesion to mechanically interlocked mesoscopic and macroscopic biomatter.

Despite these advances, chemists continued to develop theories about two substances which we no longer accept: caloric and phlogiston.

Mr Warburton said: "We've identified things like wood, plastic - there are one or two other substances which we're having subjected to forensic analysis to ensure they are not hazardous.

Among substances, which we synthesized for urokinase inhibition tests, the two most active were 1,2-benzisothiazol-3-ylguanidine (IC50 = 33  μM) and its 5-bromo derivative (4 20  μM).

But Locke's empiricism had difficulty with certain key concepts, such as substance, "which we neither have nor can have by sensation or reflection," and cause, about which he largely anticipated David Hume's difficulties in the 18th century.

It concludes that many substances which hitherto we may not have thought of as biomaterials should now be considered as such so that, alongside the traditional structural biomaterials, we have substances that have been engineered to perform functions within health care where their performance is directly controlled by interactions with tissues and tissue components.

Directly after rejecting atomic theories, he says "if we apply the term elements, or principles of bodies, to express our idea of the last point which analysis is capable of reaching, we must admit, as elements, all the substances into which we are capable, by any means, to reduce bodies by decomposition" (1789, p. xxiv).

How to prioritize the definition of quality criteria or norms for all of these new substances for which we generally have only sparse knowledge on their behaviour in the environment or on their toxic effects on human health or the environment?

We assigned a data quality rating of very low or low to all relevant substances for which we found data.

Even less well characterized are the cumulative toxicological effects of the complex mixtures of pesticide residues and other substances to which we are exposed [ 11].

In an earlier analysis (Cherrie et al, 2007), we showed that for 20 substances for which we had data on the numbers exposed from CAREX and from independent assessments by the British regulator, the HSE, there was a relatively good association between the two measures (r=0.61 on the log-transformed data), but the CAREX estimates were about 2.5 times higher than the other data.