- The
Quaternary (/kwəˈtɜːrnəri, ˈkwɒtərnɛri/ kwə-TUR-nə-ree, KWOT-ər-nerr-ee) is the
current and most
recent of the
three periods of the
Cenozoic Era in...
-
Quaternary glaciation, also
known as the
Pleistocene glaciation, is an
alternating series of
glacial and
interglacial periods during the
Quaternary period...
- a
quaternary compound is a
compound consisting of
exactly four
chemical elements. In
another use of the term in
organic chemistry, a
quaternary compound...
- The
quaternary prevention,
concept coined by the
Belgian general practitioner Marc Jamoulle, are the
actions taken to
identify a
patient at risk of overmedicalisation...
-
Aliphatic Alkyl Quaternaries (DDAC)". Epa739-R-06-008.
Zhang C, Cui F, Zeng GM,
Jiang M, Yang ZZ, Yu ZG, et al. (June 2015). "
Quaternary ammonium compounds...
-
Quaternary geology is the
branch of
geology that
study developments from 2.58
million years ago to the present. In particular,
Quaternary geology study...
- A
quaternary carbon is a
carbon atom
bound to four
other carbon atoms. For this reason,
quaternary carbon atoms are
found only in
hydrocarbons having at...
-
Quaternary International is a peer-reviewed
scientific journal on
quaternary science published by
Elsevier on
behalf of the
International Union for Quaternary...
-
Quaternary science is the
subfield of
geology which studies the
Quaternary Period commonly known as the ice age. The
Quaternary Period is a time period...
- The
quaternary sector of the
economy is
based upon the
economic activity that is ****ociated with
either the
intellectual or knowledge-based economy. This...
