all-or-nothing response
71Attachment theory — …
72language, philosophy of — Philosophical study of the nature and use of natural languages and the relations between language, language users, and the world. It encompasses the philosophical study of linguistic meaning (see semantics), the philosophical study of language… …
73Dreadnought — For other uses, see Dreadnought (disambiguation). The oldest remaining dreadnought, USS Texas, was launched in 1912 and is now a museum ship. The dreadnought was the predominant type of 20th century battleship. The first of the kind, the… …
74pre-Columbian civilizations — Introduction the aboriginal American Indian (Mesoamerican Indian) cultures that evolved in Meso America (part of Mexico and Central America) and the Andean region (western South America) prior to Spanish exploration and conquest in the 16th …
75Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… …
76Bibliography — INTRODUCTION The imposing number of books and articles that have been published in recent years about the Holocaust has made it necessary to prioritize the literature in regard to significance. As a consequence, a bibliography of the… …
77Action potential — In physiology, an action potential is a short lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called… …
78learning theory — ▪ psychology Introduction any of the proposals put forth to explain changes in behaviour produced by practice, as opposed to other factors, e.g., physiological development. A common goal in defining any psychological (psychology)… …
79Michael Palmer — For other people named Michael Palmer, see Michael Palmer (disambiguation). Michael Palmer Palmer at the 2009 Brooklyn Book Festival, speaking on a panel devoted to Mahmoud Darwish. To his right is Sinan Antoon, and to his left is Russell Banks …
80Group selection — In evolutionary biology, group selection refers to the idea that alleles can become fixed or spread in a population because of the benefits they bestow on groups, regardless of the alleles effect on the fitness of individuals within that group.… …
