This is because the rocks have been dated using only biostratigraphy, a process in which paleontologists compare the fossils preserved in a rock unit of uncertain age with rock units of known age that preserve similar fossils.
Other midpoint impact categories in IMPACT 2002+ leading to the mentioned four damage categories are listed below [49] in terms of the equivalent units of known factors contributing to the corresponding impact: 1. Non-carcinogens: Human toxicity is stated in non-carcinogenic effects of equivalent mass of C2H3Cl (vinyl chloride).
Context-dependent modular assembly (CoDA) relies on combining smaller zinc finger units of known specificity into larger arrays.
Polytypic species and species complexes provide a multitude of comparisons of units of known genealogy, and enable testing the hypothesis at various temporal scales during the progression of species formation.
Model calculations on unit risk factors of known human carcinogens were carried out to rank carcinogens according to their current ambient air concentrations.
The program, called "Live Buy It," uses a service from the PayPal unit of eBay known as PayPal Mobile Text2Buy.
In South Africa, the Directorate of Special Operations — an elite unit of investigators known as the Scorpions — was officially abolished by Parliament.
Hefty marketing and subscriber-acquisition costs are hindering the satellite unit of Hughes, known as DirecTV, which is up for sale.
He said the Zuma case had been irredeemably spoiled by "collusion" between two of his erstwhile colleagues: Bulelani Ngcuka, a former head of the prosecuting agency, and Leonard McCarthy, the onetime chief of an elite unit of investigators known as the Scorpions.
The campaign for Groupon, which carries the theme "Save the money," is being created by Crispin Porter & Bogusky, a unit of MDC Partners known for risk-taking, rule-breaking work for advertisers like Burger King and Domino's Pizza.
