empirical stability
31atom — /at euhm/, n. 1. Physics. a. the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical… …
32perception — perceptional, adj. /peuhr sep sheuhn/, n. 1. the act or faculty of apprehending by means of the senses or of the mind; cognition; understanding. 2. immediate or intuitive recognition or appreciation, as of moral, psychological, or aesthetic… …
33personality — /perr seuh nal i tee/, n., pl. personalities. 1. the visible aspect of one s character as it impresses others: He has a pleasing personality. 2. a person as an embodiment of a collection of qualities: He is a curious personality. 3. Psychol. a.… …
34Friedman, Milton — born July 31, 1912, Brooklyn, N.Y., U.S. U.S. economist. Friedman studied at Rutgers and Columbia before joining the faculty of the University of Chicago in 1946. There he became the leading U.S. advocate of monetarism. He oversaw the economic… …
35Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
36Deconstruction and Derrida — Simon Critchley and Timothy Mooney DERRIDIAN DECONSTRUCTION1 In the last twenty five years or so, particularly in the English speaking world, no philosopher has attracted more notoriety, controversy and misunderstanding than Jacques Derrida.… …
37Hartree-Fock — In computational physics and computational chemistry, the Hartree Fock (HF) method is an approximate method for the determination of the ground state wavefunction and ground state energy of a quantum many body system.The Hartree Fock method… …
38economics — /ek euh nom iks, ee keuh /, n. 1. (used with a sing. v.) the science that deals with the production, distribution, and consumption of goods and services, or the material welfare of humankind. 2. (used with a pl. v.) financial considerations;… …
39radioactivity — /ray dee oh ak tiv i tee/, n. Physics, Chem. the phenomenon, exhibited by and being a property of certain elements, of spontaneously emitting radiation resulting from changes in the nuclei of atoms of the element. Also called activity. [1895… …
40Theoretical ecology — Mathematical models developed in theoretical ecology predict complex food webs are less stable than simple webs.[1]:75–77[2]:64 …
