Search results
Results from the WOW.Com Content Network
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.
Possibilism in cultural geography is the theory that the environment sets certain constraints or limitations, but culture is otherwise determined by social conditions. [1] [2] In cultural ecology, Marshall Sahlins used this concept in order to develop alternative approaches to the environmental determinism dominant at that time in ecological studies.
The drift-diffusion model (DDM) is a well defined [19] model, that is proposed to implement an optimal decision policy for 2AFC. [20] It is the continuous analog of a random walk model. [ 7 ] The DDM assumes that in a 2AFC task, the subject is accumulating evidence for one or other of the alternatives at each time step, and integrating that ...
In diffusion, the form of something (though not necessarily its meaning) moves from one culture to another. For example, Western restaurant chains and culinary brands sparked curiosity and fascination to the Chinese as China opened its economy to international trade in the late 20th-century. [19] "Stimulus diffusion" (the sharing of ideas ...
Spatial diffusion is the gradual spread of culture, ideas, and institutions across space over time, in which the desirability of one place adopting the traits of a separate place overcome the friction of distance. Time geography explores how human activity is affected by the constraints of movement, especially temporal costs. [11]
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 Falcons signed Kirk Cousins to put them over the top in key spots. Instead, the QB is weighing Atlanta down, including Sunday vs. the Chargers.
Most American geography and social studies classrooms have adopted the five themes in teaching practices, [3] as they provide "an alternative to the detrimental, but unfortunately persistent, habit of teaching geography through rote memorization". [1] They are pedagogical themes that guide how geographic content should be taught in schools. [4]