periodical interaction
31Permanent death — In computer role playing games (CRPGs), permanent death (sometimes permadeath or PD) is a situation in which player characters (PCs) die permanently and are removed from the game. [ Never to return death is called permanent death or PD. (Bartle… …
32General Conference Mennonite Church — The General Conference Mennonite Church was an association of Mennonite congregations based in North America from 1860 to 2002. The conference was formed in 1860 when congregations in Iowa invited North American Mennonites to join together in… …
33Anarchist schools of thought — Part of the Politics series on Anarchism …
34Characters of Shakespear's Plays —   …
35Wave–particle duality — Quantum mechanics Uncertainty principle …
36Diplomacy — For the textual analysis of historic documents, see Diplomatics. For other uses, see Diplomacy (disambiguation). The United Nations, with its headquarters in New York City, is the largest international diplomatic organization. Diplomacy (from… …
37Discrete element method — A discrete element method (DEM), also called a distinct element method is any of family of numerical methods for computing the motion of a large number of particles of micrometre scale size and above. Though DEM is very closely related to… …
38Antipredator adaptation — A lone bison is standing its ground against a pack of wolves, thereby increasing its chance of survival Antipredator adaptations are evolutionary adaptations developed over time, which assist prey organisms in their constant struggle against… …
39Optical parametric oscillator — Infrared optical parametric oscillator An optical parametric oscillator (OPO) is a parametric oscillator which oscillates at optical frequencies. It converts an input laser wave (called pump ) into two output waves of lower frequency (ωs,ωi) by… …
40PITX1 — Paired like homeodomain transcription factor 1, also known as PITX1, is a human gene.cite web | title = Entrez Gene: PITX1 paired like homeodomain transcription factor 1| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView… …
