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See on rhoi.berkeley.edu

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Geometric morphometric methods of capturing information about curves or outlines of organismal structures may be used in conjunction with canonical variates analysis (CVA) to assign specimens to groups or populations based on their shapes. This methodological paper examines approaches to optimizing the classification of specimens based on their outlines. This study examines the performance of four approaches to the mathematical representation of outlines and two different approaches to curve measurement as applied to a collection of feather outlines. A new approach to the dimension reduction necessary to carry out a CVA on this type of outline data with modest sample sizes is also presented, and its performance is compared to two other approaches to dimension reduction.

See on www.frontiersinzoology.com

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3D images of dinosaur skulls show that three species are actually one Vision Systems Design Using a hand-held stylus that captures a point in space relative to a transmitter, the researchers then pinpointed 56 “landmark” spots on each dinosaur…

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The Rhinopomatidae, traditionally considered to be one of the most ancient chiropteran clades, remains one of the least known groups of Rhinolophoidea. No relevant fossil record is available for this family.

See on www.biomedcentral.com

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PubMed comprises more than 22 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.

See on www.ncbi.nlm.nih.gov