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Nature Ecology & Evolution, 2018
A coordinated distributed experiment, replicated across multiple labs and multiple taxa, reveals that both resources and predators govern dispersal between habitats, affecting local and regional stability of biological communities.
Siqueira, Tadeu, Wunderlich, Alison
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A coordinated distributed experiment, replicated across multiple labs and multiple taxa, reveals that both resources and predators govern dispersal between habitats, affecting local and regional stability of biological communities.
Siqueira, Tadeu, Wunderlich, Alison
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Dispersion, agglomération et re-dispersion ?
Revue d’Économie Régionale & Urbaine, 2002Résumé Cet article a pour but de présenter de manière synthétique les principaux résultats théoriques obtenus récemment en économie géographique. Pour cela, on utilise un nouveau modèle qui permet d’établir de manière simple des résultats analytiques. Ce modèle est ensuite utilisé pour étudier un certain nombre de questions peu abordées jusqu’à présent
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Dispersion and dispersing agents
Pigment & Resin Technology, 1973The term dispersion is used to refer to the process of incorporating a powder into a liquid medium so that the final product consists of fine particles distributed throughout the medium. The dispersion is termed ‘colloidal’ if at least one dimension of the particles is <1µ>1mµ.
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, 2008 A brief survey of the economics of price dispersion, written for the New Palgrave Dictionary of Economics, 2nd Edition.
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Decentralisation, Dispersal and Dispersion
South African Geographical Journal, 1974Abstract The terms decentralisation, dispersal and dispersion are used extensively in the literature of regional economic development. The first may refer to the decentralisation of core areas, to the process of dispersal, or to the state of a spatial system. The second term is concerned mainly with process and the third with pattern but no consistency
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Dispersion-managed solitons at normal average dispersion
Nonlinear Optics '98. Materials, Fundamentals and Applications Topical Meeting (Cat. No.98CH36244), 1998We find that in a dispersion-managed fiber, in which the strength of the dispersion management is above some threshold, solitons can exist with normal average dispersion. When the normal average dispersion is below some limiting value there exist two soliton solutions with the same pulse duration and different pulse energies.
V S, Grigoryan, C R, Menyuk
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New dispersion-decreasing dispersion management
SPIE Proceedings, 2004In this paper, we introduce a new dispersion management method of realizing exponentially decreasing dispersion fiber by using only two kinds of segments of fibers with different dispersions connected together. Exponentially decreasing dispersion fiber is used to obtain the optimum soliton transmission situation.
Haigeng Qiao +4 more
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Dispersion-managed breathers with average normal dispersion
Optics Letters, 1998Analytic and numerical evidence is presented that demonstrates that a dispersion-managed breather can be supported in an optical fiber even when the average dispersion is in the normal regime. This nonlinear behavior, which is contrary to guiding-center theory, is shown to originate from the reversible dynamics associated with the strong quadratic ...
J N, Kutz, S G, Evangelides
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Dispersion-managed solitons with net positive dispersion
Optics Letters, 1998Propagation of dispersion-managed solitons in the net positive-dispersion regime is studied. A new form of sideband generation that is due to perturbations is identified. Some collision anomalies are pointed out.
Y, Chen, H A, Haus
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Competition for Dispersal in Ant-Dispersed Plants
Science, 1981Two closely related and coexisting plants (Chenopodiaceae) of the Australian arid zone are adapted for seed dispersal by ants. These facultatively perennial shrubs persist in saltbush communities largely as a result of highly directional dispersal to ant mounds, where conditions are favorable for establishment and growth.
D W, Davidson, S R, Morton
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