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Expansion diffusion: an innovation or idea that develops in a source area and remains strong there, while also spreading outward to other areas. This can include hierarchical, stimulus, and contagious diffusion. Relocation diffusion: an idea or innovation that migrates into new areas, leaving behind its origin or source of the cultural trait.
[3]: 255–56 Also, unlike trans-cultural diffusion, hyperdiffusionism does not use trading and cultural networks to explain the expansion of a society within a single culture; instead, hyperdiffusionists claim that all major cultural innovations and societies derive from one (usually lost) ancient civilization.
Diffusion is the net movement of anything (for example, atoms, ions, molecules, energy) generally from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in Gibbs free energy or chemical potential .
The expansion of agriculture from the Middle East would have diffused three language families: Indo-European languages toward Europe, Dravidian languages toward Pakistan and India, and Afroasiatic languages toward the Arabian Peninsula and North Africa. Reacting to criticism, Renfrew revised his proposal to the effect of taking a pronounced ...
The mobility of the Kurgan culture facilitated its expansion over the entire region and is attributed to the domestication of the horse followed by the use of early chariots. [19] The first strong archaeological evidence for the domestication of the horse comes from the Sredny Stog culture north of the Azov Sea in Ukraine , and would correspond ...
Demic diffusion, as opposed to trans-cultural diffusion, is a demographic term referring to a migratory model, developed by Luigi Luca Cavalli-Sforza, of population diffusion into and across an area that had been previously uninhabited by that group and possibly but not necessarily displacing, replacing, or intermixing with an existing ...
Disease diffusion occurs when a disease is transmitted to a new location. [1] It implies that a disease spreads, or pours out, from a central source. [2] The idea of showing the spread of disease using a diffusion pattern is relatively modern, compared to earlier methods of mapping disease, which are still used today. [3]
In religious studies and sociology, the pizza effect is the phenomenon of elements of a nation's or people's culture being transformed or at least more fully embraced elsewhere, then re-exported to their culture of origin, [1] or the way in which a community's self-understanding is influenced by (or imposed by, or imported from) foreign sources. [2]