barrier method

  • 81radioactivity — /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… …

    Universalium

  • 82Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …

    Universalium

  • 83Aquaculture of coral — Coral in an aquaculture tank Coral aquaculture, also known as coral farming or coral gardening, is the cultivation of corals for commercial purposes or coral reef restoration. Aquaculture is showing promise as a potentially effective tool for… …

    Wikipedia

  • 84Inertial confinement fusion — (ICF) is a process where nuclear fusion reactions are initiated by heating and compressing a fuel target, typically in the form of a pellet that most often contains a mixture of deuterium and tritium.To compress and heat the fuel, energy is… …

    Wikipedia

  • 85Operation Igloo White — Part of the Vietnam War Date 1968–1973 Location Southern Laos Result …

    Wikipedia

  • 86Neurotechnology — is any technology that has a fundamental influence on how people understand the brain and various aspects of consciousness, thought, and higher order activities in the brain. It also includes technologies that are designed to improve and repair… …

    Wikipedia

  • 87integrated circuit — Electronics. a circuit of transistors, resistors, and capacitors constructed on a single semiconductor wafer or chip, in which the components are interconnected to perform a given function. Abbr.: IC Also called microcircuit. [1955 60] * * * ▪… …

    Universalium

  • 88Blastocystosis — DiseaseDisorder infobox Name = Blastocystosis Caption = Blastocystis sp. DiseasesDB = 33233 ICD9 = ICD9|007|9 ICDO = OMIM = MeshID = D016776 Blastocystosis refers to a medical condition caused by infection with Blastocystis . Blastocystis is a… …

    Wikipedia

  • 89materials science — the study of the characteristics and uses of various materials, as glass, plastics, and metals. [1960 65] * * * Study of the properties of solid materials and how those properties are determined by the material s composition and structure, both… …

    Universalium

  • 90poison — poisoner, n. poisonless, adj. poisonlessness, n. /poy zeuhn/, n. 1. a substance with an inherent property that tends to destroy life or impair health. 2. something harmful or pernicious, as to happiness or well being: the poison of slander. 3.… …

    Universalium