Isotope geochemistry this reason, enrichments are typically reported in "per mil" (‰, parts per thousand). These enrichments (δ) represent the ratio of heavy isotope to light isotope in the sample over the ratio of a standard. That is, Hydrogen isotope biogeochemistry Carbon has two stable isotopes, C and C, and one radioactive isotope, C. The stable carbon isotope ratio, "δ"C, is measured against Vienna Pee Dee Belemnite (VPDB). The stable carbon isotopes are fractionated primarily by photosynthesis (Faure, 2004). The C/C ratio is also an indicator of paleoclimate: a change in the ratio in the remains of plants indicates a change in
Tritium (programming language) transformation language. Much of this was based on his prior experience porting Wikipedia’s desktop website to the mobile web. Open Tritium is the open source implementation of the Tritium language. It was presented at O'Reilly Open Source Convention 2014 and the compiler is implemented in Go. Tritium takes as input HTML, XML, or JSON documents and outputs HTML, XML, or JSON data that has been transformed according to the rules defined in the Tritium script. Like JQuery, idiomatic Tritium code is structured around selecting a collection of elements via a CSS or XPath selector and then chaining a series of