Patrick, Ruth

Patrick, Ruth, Rivers of the United States Pollution and Environmental Management, John Wiley Sons, New York, 1999. 

When Ruth Patrick retired from the post of curator of limnology at the academy in 1961, Cairns was seiected as her replacement. He held that position for five years before accepting an appointment as professor of zoology at the University of Kansas, in 1968, Cairns left Kansas to accept a post as research professor of zoology at Virginia Tech. Two years later, he became director of the University Centerfor Environmental and Hazardous Materials Study at Virginia Tech and, in 1972, was appointed University Distinguished Professor, a post he held until his formal retirement 24 years later. 

How does one know whether a body of water is polluted In some cases, the answer to that question is easy. Just looking at a river or stream sometimes reveals the presence of dead plants and animals, discarded tires and plastic bottles, oil films, and other obvious evidence of pollution. But detecting pollution is not always that easy. Water that looks crystal clear and pure may sometimes harbor disease-causing organisms, toxic chemicals, or other materials that make It unsafe to drink or use. One of the pioneers in developing methods for detecting water pollution is Ruth Patrick. 

Ruth Patrick was born in Topeka, Kansas, on November 26, 1907. She became interested in science early In her life when her father gave her a microscope at the age of seven. He set a challenge for her that was to guide much of her adult life "Read and Improve your mind."... 

Patrick principle The principle that the quality of a body of water and the changes caused by human activities on that water can be determined by the type and number of organisms found there. The principle is named after microbiologist Ruth Patrick, perc An abbreviation for a commonly used dry cleaning fluid, perchloroethylene. 

Nanostructure Design Methods and Protocols, edited by Ehud Gazit and Ruth Nussinov, 2008 473. Clinical Epidemiology Practice and Methods, edited by Patrick Parfrey and Brendon Barrett, 2008... 

Diatometer (Ruth Patrick) Patrick s diatometer is a device placed in the water to collect diatoms and allow them to grow. The number of diatoms is sensitive to water pollution. 

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