mean yield
51Biochar — is a charcoal produced from biomass that can store carbon. It is of increasing interest because of concerns about global warming caused by emissions of CO2 and other greenhouse gases. In some cases, the term is used specifically to mean biomass… …
52Economic 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… …
53Traffic light — The traffic light, also known as traffic signal, stop light, traffic lamp, stop and go lights, robot or semaphore, is a signaling device positioned at a road intersection, pedestrian crossing, or other location. Its purpose is to indicate, using… …
54spread — The price difference between two related markets or commodities. Chicago Board of Trade glossary l) Positions held in two different futures contracts, taken to profit from the change in the difference between the two contracts prices; e.g., long… …
55Carbon dioxide — Carbon dioxide …
56Coconut — For other uses, see Coconut (disambiguation). Coconut Palm Cocos nucifera Coconut Palm (Cocos nucifera) Scientific classification Kingdom …
57Chen model — In finance, the Chen model is a mathematical model describing the evolution of interest rates. It is a type of three factor model (short rate model) as it describes interest rate movements as driven by three sources of market risk. It was the… …
58United Kingdom — a kingdom in NW Europe, consisting of Great Britain and Northern Ireland: formerly comprising Great Britain and Ireland 1801 1922. 58,610,182; 94,242 sq. mi. (244,100 sq. km). Cap.: London. Abbr.: U.K. Official name, United Kingdom of Great… …
59logic, history of — Introduction the history of the discipline from its origins among the ancient Greeks to the present time. Origins of logic in the West Precursors of ancient logic There was a medieval tradition according to which the Greek philosopher …
60Chlorophyll fluorescence — is light that has been re emitted after being absorbed by chlorophyll molecules of plant leaves. By measuring the intensity and nature of this fluorescence, plant ecophysiology can be investigated. Contents 1 Assessing plant physiology with… …
