Results 251 to 260 of about 1,015,655 (285)
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Canadian Journal of Mathematics, 1978
There have been few published results concerning the relationship between the homology groups of branched and unbranched covering spaces of knots, despite the fact that these invariants are such powerful invariants for distinguishing knot types and have long been recognised as such [8]. It is well
Hartley, Richard, Murasugi, Kunio
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There have been few published results concerning the relationship between the homology groups of branched and unbranched covering spaces of knots, despite the fact that these invariants are such powerful invariants for distinguishing knot types and have long been recognised as such [8]. It is well
Hartley, Richard, Murasugi, Kunio
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Cladistics, 2012
AbstractA recent review of the homology concept in cladistics is critiqued in light of the historical literature. Homology as a notion relevant to the recognition of clades remains equivalent to synapomorphy. Some symplesiomorphies are “homologies” inasmuch as they represent synapomorphies of more inclusive taxa; others are complementary character ...
Andrew V Z, Brower, Mario C C, de Pinna
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AbstractA recent review of the homology concept in cladistics is critiqued in light of the historical literature. Homology as a notion relevant to the recognition of clades remains equivalent to synapomorphy. Some symplesiomorphies are “homologies” inasmuch as they represent synapomorphies of more inclusive taxa; others are complementary character ...
Andrew V Z, Brower, Mario C C, de Pinna
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Cladistics, 2014
AbstractHennig (1966) recognized symplesiomorphies as homologies, and that view is logically correct under the concept of homology (homogeny) prevalent among evolutionists since 1870. Nelson and Platnick (1981) instead wanted homology to exclude symplesiomorphies for reasons that they never made clear but which certainly included opposition to Hennig ...
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AbstractHennig (1966) recognized symplesiomorphies as homologies, and that view is logically correct under the concept of homology (homogeny) prevalent among evolutionists since 1870. Nelson and Platnick (1981) instead wanted homology to exclude symplesiomorphies for reasons that they never made clear but which certainly included opposition to Hennig ...
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Journal of Theoretical Biology, 1981
Abstract Every organism elaborating a connective tissue of which collagen is a component is descended from a unique organism, the collagen ancestor. The original gene for the ur-collagen was due to some ordered process in the Precambrian age between 1·3 and 2·1 billion years ago.
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Abstract Every organism elaborating a connective tissue of which collagen is a component is descended from a unique organism, the collagen ancestor. The original gene for the ur-collagen was due to some ordered process in the Precambrian age between 1·3 and 2·1 billion years ago.
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Confusing homologs as homologies: a reply to “On homology”
Cladistics, 2012David M, Williams, Malte C, Ebach
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American Journal of Physical Anthropology, 1978
AbstractA recently described juvenile specimen of Avahi was supposed to show that indriines have an unreplaced deciduous canine and that the indriine toothcomb was composed only of incisors. To the contrary, this specimen demonstrates quite dramatically a growth phenomenon earlier discussed: in indriines, the anteriormost of the four deciduous lower ...
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AbstractA recently described juvenile specimen of Avahi was supposed to show that indriines have an unreplaced deciduous canine and that the indriine toothcomb was composed only of incisors. To the contrary, this specimen demonstrates quite dramatically a growth phenomenon earlier discussed: in indriines, the anteriormost of the four deciduous lower ...
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IMPLANTS Homologous Homologous
Plastic and Reconstructive Surgery, 1977Henry Jahan, G. Thomas
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ACM SIGGRAPH 2005 Emerging technologies on - SIGGRAPH '05, 2005
Ruth West +10 more
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Ruth West +10 more
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