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Krebs, Sir Hans Adolf

(Encyclopedia)Krebs, Sir Hans Adolf krĕbz, krĕps [key], 1900–1981, English biochemist, b. Germany, M.D. Univ. of Hamburg, 1925. He taught at Cambridge and at the Univ. of Sheffield and after 1954 was professor ...

Tanaka, Koichi

(Encyclopedia)Tanaka, Koichi, 1959–, Japanese engineer, B.S. Tohoku Univ., 1983. He has been a researcher at Shimadzu Corporation in Kyoto, Japan, since 1983. Tanaka shared the 2002 Nobel Prize in Chemistry with ...

enthalpy

(Encyclopedia)enthalpy ĕnˈthălpē [key], measure of the heat content of a chemical or physical system; it is a quantity derived from the heat and work relations studied in thermodynamics. As a system changes fro...

hysteresis

(Encyclopedia)hysteresis hĭsˌtərēˈsĭs [key], phenomenon in which the response of a physical system to an external influence depends not only on the present magnitude of that influence but also on the previous...

Simon, William Edward

(Encyclopedia)Simon, William Edward, 1927–2000, U.S. secretary of the treasury (1974–77), b. Paterson, N.J. He served (1946–48) in the U.S. army in Japan, graduated from Lafayette College (1952), and became a...

Shmyhal, Denys Anatoliyovych

(Encyclopedia)Shmyhal or Shmygal, Denys Anatoliyovych, 1975–, Ukrainian politician. An engineer and economist, he worked in the private sector (1995–2009), then served in the state administration for Lviv Oblas...

atom

(Encyclopedia)CE5 Bohr-Rutherford atom CE5 Probability distribution of the electron in the hydrogen atom: A. Ground state B. Highly excited state atom [Gr.,=uncuttable (indivisible)], basic unit of matte...

Lindemann, Frederick Alexander

(Encyclopedia)Lindemann, Frederick Alexander (Viscount Cherwell) lĭnˈdəmən, chärˈwĕl [key], 1886–1957, British physicist and government official. He studied with W. H. Nernst and developed with him the Ner...

Brockhouse, Bertram

(Encyclopedia)Brockhouse, Bertram, 1918–2003, Canadian physicist, b. Lethbridge, Alta. Educated at the Univ. of British Columbia and Univ. of Toronto (Ph.D., 1950), he was a research officer (1950–59) and head ...

molecular modeling

(Encyclopedia)molecular modeling, the computer simulation, by various means, of chemical structures or processes. Special computer-graphics programs can display three-dimensional images of molecular structures and ...