In addition to algae, boghead coals may contain fish scales and other fossils, which show that animal substances contributed to the formation of these coals.
In high-voltage transformers, for example, solid insulation provides mechanical rigidity, while oil or other liquid substances contribute to increased insulation strength and serve to remove heat from the equipment.
While anabolic steroids and other banned substances contributed to the East Germans' triumph, credit must also be given to their relentless application of scientific methods in the search for the ultimate sports performance.
The argument for attacking the less common greenhouse ingredients is mainly based on the idea that these substances contribute to harmful air pollution as well as climate change -- and so an easier case can be made to policy makers and the public to clean them up.
Background: Certain sexual behaviors and abuse of substances contribute to the risk of becoming HIV-infected.
To evaluate whether serum replacement with growth factor free synthetic substances contributed to the effective establishment of embryonic stem (ES) cells.
Agricultural runoff often contains a suite of water-quality contaminants, such as nutrients, pesticides, pathogens, sediment, salts, trace metals, and substances, contributing to biological oxygen demand.
The chemical composition of peppers is quite complex and several volatile and non-volatile substances contribute to their flavor, which is an important sensorial propriety.
The analysis also supports the earlier findings that only a few substances contribute to the toxicity of mixtures in surface and groundwater and in many instances a single substance is responsible for the majority of the toxicity of a mixture [7, 8].
Since these kokumi taste substances are contained in foods, the substances contribute to taste of foods.
