Buscar
Mostrando ítems 1-10 de 4374
Beta Diversity of Plant-Pollinator Networks and the Spatial Turnover of Pairwise Interactions
(Public Library Science, 2014-11-10)
Interactions between species form complex networks that vary across space and time. Even without spatial or temporal constraints mutualistic pairwise interactions may vary, or rewire, across space but this variability is ...
Absence of Klein's paradox for massive spinless bosons coupled by a nonminimal vector interaction
(2009-12-01)
A few properties of the nonminimal vector interaction in the Duffin-Kemmer-Petiau theory in the scalar sector are revised. In particular, it is shown that the nonminimal vector interaction has been erroneously applied to ...
Absence of Klein's paradox for massive spinless bosons coupled by a nonminimal vector interaction
(2009-12-01)
A few properties of the nonminimal vector interaction in the Duffin-Kemmer-Petiau theory in the scalar sector are revised. In particular, it is shown that the nonminimal vector interaction has been erroneously applied to ...
Dynamics in discrete phase spaces and time interval operators
(Elsevier B.V., 1999-03-01)
The von Neumann-Liouville time evolution equation is represented in a discrete quantum phase space. The mapped Liouville operator and the corresponding Wigner function are explicitly written for the problem of a magnetic ...
Dynamics in discrete phase spaces and time interval operators
(Elsevier B.V., 1999-03-01)
The von Neumann-Liouville time evolution equation is represented in a discrete quantum phase space. The mapped Liouville operator and the corresponding Wigner function are explicitly written for the problem of a magnetic ...
A Maxwell-like formulation of gravitational theory in minkowski space-time
(World Scientific Publ Co Pte LtdSingaporeSingapura, 2007)
On the integration of fields and quanta in time dependent backgrounds
(Springer, 2014)
Field theories with global continuous symmetries may admit configurations in
which time translation invariance is broken by the movement of homogeneous background
fields evolving along the flat directions implied by the ...
Correlation between grain yield in maize plant densities
(2020-01-01)
When assessing genotypes in different environments, the result depends on the genotype-environment interaction. Among the environmental factors, the spatial arrangement of plants is among the most important management ...
Modularity, pollination systems, and interaction turnover in plant-pollinator networks across space
(2016-05-01)
Mutualistic interaction networks have been shown to be structurally conserved over space and time while pairwise interactions show high variability. In such networks, modularity is the division of species into compartments, ...