- 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...
- In
organic chemistry,
quaternary ammonium cations, also
known as quats, are positively-charged
polyatomic ions of the
structure [NR4]+,
where R is an alkyl...
- also
refer to:
Quaternary (chemistry) (see also
Quaternary compound and
Quaternary phase)
Quaternary structure of
proteins Quaternary sector of the economy...
-
Pleistocene together form the
Quaternary period. The
Holocene is an
interglacial period within the
ongoing glacial cycles of the
Quaternary, and is
equivalent to...
-
Quaternary /kwəˈtɜːrnəri/ is a
numeral system with four as its base. It uses the
digits 0, 1, 2, and 3 to
represent any real number.
Conversion from binary...
- 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...
- The
quaternary sector of the
economy is
based upon the
economic activity that is ****ociated with
either the
intellectual or knowledge-based economy. This...
-
tertiary colors. A
quaternary color is a seldom-used
descriptor that is the
conceptual extension of a
tertiary color.
Quaternary colors have no special...
- The
quaternary prevention,
concept coined by the
Belgian general practitioner Marc Jamoulle,
Quaternary prevention is the set of
health activities to...
