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Scooped by ComplexInsight onto Complex Insight - Understanding our world |
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Sketchup - the 3D modeling application - a favourite of architects and builders for quick 3D sketches- finds a new home. Originally acquired by Google to help add 3D content to Google Earth, the software is moving to Trimble where it will become part of Trimble's Office-to-Field Platform. The acquisition is part of Trimble's continuing expansion into the building and spatial information solutions market spanning design and planning offices to onsite construction and development measurement.
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Bird songs are acoustic communication signals primarily used in male-male aggression and in male-female attraction. These are often monotonous patterns composed of a few phrases, yet some birds have extremely complex songs with a large phrase repertoire, organized in non-random fashion with discernible patterns. Since structure is typically associated with function, the structures of complex bird songs provide important clues to the evolution of animal communication systems. Here we propose an efficient network-based approach to explore structural design principles of complex bird songs, in which the song networks–transition relationships among different phrases and the related structural measures–are employed.
Sasahara K, Cody ML, Cohen D, Taylor CE (2012) Structural Design Principles of Complex Bird Songs: A Network-Based Approach. PLoS ONE 7(9): e44436. http://dx.doi.org/10.1371/journal.pone.0044436 Via Complexity Digest Delete the scoop?
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