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denaturation

(Encyclopedia)denaturation, term used to describe the loss of native, higher-order structure of protein molecules in solution. Most globular proteins exhibit complicated three-dimensional folding described as secon...

Fragonard, Jean-Honoré

(Encyclopedia)Fragonard, Jean-Honoré zhäN-ōnôrāˈ frägônärˈ [key], 1732–1806, French painter. He studied with Chardin, Carle Vanloo, and intensively with Boucher, whose style he assimilated. He won the P...

valence, in chemistry

(Encyclopedia)valence, combining capacity of an atom expressed as the number of single bonds the atom can form or the number of electrons an element gives up or accepts when reacting to form a compound. Atoms are c...

Houdini, Harry

(Encyclopedia)Houdini, Harry ho͞odēˈnē [key], 1874–1926, American magician and writer, b. Budapest, Hungary, as Erik Weisz, later modified to Ehrich Weiss; his stage name honors the French magician Houdin. By...

lipoprotein

(Encyclopedia)lipoprotein lĭpˌəprōˈtēn [key], any organic compound that is composed of both protein and the various fatty substances classed as lipids, including fatty acids and steroids such as cholesterol. ...

loan

(Encyclopedia)loan, in business, sum of money borrowed at a particular interest rate. More generally, it refers to anything given on condition of its return or repayment of its equivalent. A loan may be acknowledge...

Milken, Michael Robert

(Encyclopedia)Milken, Michael Robert mĭlˈkən [key], 1946–, American financial executive, b. Van Nuys, Calif. Nicknamed the “junk bond king,” he was an executive at Drexel Burnham Lambert, Inc., where he tr...

peptide

(Encyclopedia)peptide, organic compound composed of amino acids linked together chemically by peptide bonds. The peptide bond always involves a single covalent link between the α-carboxyl (oxygen-bearing carbon) o...

Durkheim, Émile

(Encyclopedia)Durkheim, Émile dûrkˈhīm, Fr. āmēlˈ dürkĕmˈ [key], 1858–1917, French sociologist. Along with Max Weber he is considered one of the chief founders of modern sociology. Educated in France an...

carbonyl group

(Encyclopedia)carbonyl group kärˈbənĭl [key], in chemistry, functional group that consists of an oxygen atom joined by a double bond to a carbon atom. The carbon atom is joined to the remainder of the molecule ...
 

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