Now showing items 1-10 of 11
An idealized concept of the true cladistic character
(Elsevier, 1975-04)
Estimating evolutionary relationships is basic to the objectives of systematics. Comparative data, structured as taxonomic characters, are usually the essential considerations on which such estimates are founded. Some ...
The alkanes of the ant, Atta colombica
(Elsevier, 1970)
Two homologous series of trimethylalkanes, the 3,7,11-trimethylalkanes (C34H7), C36H74 and C38H78) and the 4,8,12-trimethylalkanes (C35H72, C37H76 and C39H80) are the major constituents of the cuticular alkanes of the ant, ...
A mathematical foundation for the analysis of cladistic character compatibility
(Elsevier, 1976)
Using formal algebraic definitions of "cladistic character" and "character compatibility", the concept of "binary factors of a cladistic character" is formalized and used to describe and justify an algorithm for checking ...
How to determine the compatibility of undirected character state trees
(Elsevier, 1979-10)
Methods for cladistic character compatibility analysis have required a priori estimates of the direction of evolutionary trends among the states of a character, in order to ensure consistency. Results are presented here ...
Morphogenic effects of halogenated thymidine analogs on drosophila II. Incorporation of 5-bromodeoxyuridine into DNA
(Elsevier, 1972-01)
When 5-bromodeoxyuridine is fed to Drosophila larvae, a variety of morphogenic lesions are found in the hatching adults. Experiments were undertaken to determine whether 5-bromodeoxyuridine is incorporated into Drosophila ...