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DFFITS. In statistics, DFFIT and DFFITS ("difference in fit (s)") are diagnostics meant to show how influential a point is in a linear regression, first proposed in 1980. [ 1] DFFIT is the change in the predicted value for a point, obtained when that point is left out of the regression: where and are the prediction for point i with and without ...
Horizontal gene transfer ( HGT) or lateral gene transfer ( LGT) [ 1][ 2][ 3] is the movement of genetic material between organisms other than by the ("vertical") transmission of DNA from parent to offspring ( reproduction ). [ 4] HGT is an important factor in the evolution of many organisms. [ 5][ 6] HGT is influencing scientific understanding ...
Vertical integration is the degree to which a firm owns its upstream suppliers and its downstream buyers. The differences depend on where the firm is placed in the order of the supply chain. There are three varieties of vertical integration: backward (upstream) vertical integration, forward (downstream) vertical integration, and balanced (both ...
Research. v. t. e. Horizontal integration is the process of a company increasing production of goods or services at the same level of the value chain, in the same industry. A company may do this via internal expansion or through mergers and acquisitions. [ 1][ 2][ 3] The process can lead to monopoly if a company captures the vast majority of ...
Horizontal gene transfer ( HGT) refers to the transfer of genes between distant branches on the tree of life. In evolution, it can scramble the information needed to reconstruct the phylogeny of organisms, how they are related to one another. HGT can also help scientists to reconstruct and date the tree of life, as a gene transfer can be used ...
Horizontal and vertical (disambiguation) Horizontal and vertical commonly refers a concept about orientation in mathematics, geography, physics and other sciences, with the vertical typically being defined by the direction of gravity, and with the horizontal being perpendicular to the vertical. Horizontal and vertical may also refer to:
Horizontal integration, when a company increases production of goods or services at the same level of the value chain and in the same industry (e.g via internal expansion, acquisition or merger) Vertical integration , when the the supply chain of a company is integrated and owned by that company (i.e. integration of multiple stages of production)
The word horizontal is derived from the Latin horizon, which derives from the Greek ὁρῐ́ζων, meaning 'separating' or 'marking a boundary'. [2] The word vertical is derived from the late Latin verticalis, which is from the same root as vertex, meaning 'highest point' or more literally the 'turning point' such as in a whirlpool.