Sentence examples for by which substances from inspiring English sources

By showing how compounds conformed to the laws of constant, multiple, and equivalent proportions as well as to a series of semiempirical rules devised to cover specific classes of compounds, Berzelius established the quantitative specificity by which substances combined.

Some phenomena, such as the capacity of chemicals to react only with certain others, puzzled him, however, and he spoke of a "secret principle" by which substances are "sociable" or "unsociable" with others.

Human nutrition, process by which substances in food are transformed into body tissues and provide energy for the full range of physical and mental activities that make up human life.

Ionic channels are the main pathway by which substances move into cells and son are of great biological and medical importance: asubstantial fraction of all drugs used by physicians act on channels.

As one of the four routes by which substances normally exit the body (the others being feces, breath and sweat), urine has a uniquely valuable role in medicine: It holds clues not just to what people eat and drink, but also to how well their bodies are functioning.

There's no better place for a chemical sensor, he points out, as the blood is the highway by which substances move around the body.

Pathways a and c test the drugs-cause crime model by which substance use from one time period impacts changes in arrest later in time.

This finding appears to contradict the hypothesized mechanisms by which substance use and SMI interact, particularly because opiate intoxication and withdrawal can cause depressive symptoms (American Psychiatric Association, 2013).

Reaction mechanism, in chemical reactions, the detailed processes by which chemical substances are transformed into other substances.

Antioxidant, any of various chemical compounds added to certain foods, natural and synthetic rubbers, gasolines, and other substances to retard autoxidation, the process by which these substances combine with oxygen in the air at room temperature.

A still lower level of evidence was "biological plausibility," meaning that scientists can see a mechanism in animals by which certain substances might cause breast cancer, but that there is not enough information to assess the risk in humans.