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Part per Thousand

Known as: parts per thousand, [ppth], ppt 
A unit of proportion equal to 10E-3.
National Institutes of Health

Papers overview

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2017
2017
Novel physiological challenges in different environments can promote the evolution of divergent phenotypes, either through… 
2012
2012
The decision of Venezuela’s President Hugo Chavez not to renew the private TV channel RCTV’s (Radio Caracas Television… 
2011
2011
Test scores are used to assess one's general knowledge of a specific area. Although strategies to improve test performance have… 
2010
2010
A novel thiourea ligand; N-phenyl-N-(2-phenolyl)thiourea (PPTH) is synthesized from the reaction of orthoaminophenol with phenyl… 
2008
2008
Discovery of natural methane hydrate in deepwater sediments in the east-coast of India have generated significant interest in… 
2003
2003
In order to assess the ability of Porites corals to accurately record environmental variations, high-resolution (weekly/biweekly… 
2002
2002
The artificial radiocarbon produced by the thermonuclear bomb tests in the 1950s and 1960s significantly increased the level… 
1992
1992
A computational method is described for obtaining inner-shell-vacancy states of three-electron atoms which combines a block… 
1981
1981
Starting in 1965 the Santa Clara Valley Water District began importing about 100,000 acre-feet per year of northern California… 
1965
1965
RECENT investigations have shown that in coastal mangrove swamps of south-western Florida the average chlorinity of interstitial…