Butterflies Across the Globe: A Synthesis of the Current Status and Characteristics of Monarch (Danaus plexippus) Populations Worldwide

omnipure k2533 Recent declines in the migratory North American populations of monarchs (Danaus plexippus) have necessitated efforts to evaluate the current status of the species, including worldwide populations.While monarchs originate from North America and may be ancestrally migratory, they have expanded throughout many parts of the world over th

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Hierarchical models in the brain.

This paper describes a general model that subsumes many parametric models for continuous data.The model comprises hidden layers of state-space or dynamic causal models, arranged so that the output of one provides input to another.The ensuing hierarchy furnishes a model for many types of data, of arbitrary complexity.Special cases range from the gen

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