Word: nutrients
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...commercial prominence of the Netherlands in the seventeenth century made Amsterdam the major market place for the sale of world art. It also provided the nutrient for the greatest flowering of Dutch culture...
Segregated Compounds. To prepare a bacterial chromatogram, Scientists Alexander and Gould use a pure strain of bacteria, allow them to grow for several hours in a nutrient solution, then extract the metabolic products that have been excreted. These are injected into a chromatograph, where they are converted by heat into gaseous form and fed into a column containing a packing material and an organic liquid such as Carbowax-a chemical that has a different attraction for the molecules of each chemical compound. Thus every compound that passes through the column is slowed to a degree...
...group of New York City researchers have been looking for the answer in test tubes containing nerve fibers growing in a nutrient solution. At Mount Sinai Hospital, Dr. Murray B Bornstein and Dr. Stanley H. Appel found that if serum from MS patients, or from animals with a similar disease, was added to the solution, the myelin "insulation" was dissolved. Serum from healthy people or animals had no such effect. With Columbia University's Dr Stanley M. Crain, Dr. Bornstein then tested the electrical connections between cells within the nerve fiber. Serum from MS patients, the doctors found, inactivates...
...exotic organism living humbly in the soil might starve native plants by turning some vital nutrient, such as nitrogen, into a form they cannot use. If the earth's plants die of starvation, its animals, including man, will...
Stare also commented that one of the per targets of the health quacks is the "poisoning" of our water supply through flouridation. "Floride is a mineral nutrient," he said; the body must have sufficient flourine to construct a dental enamel strong enough to resist decay...