•In an attempt to clarify the relevance of ontogenetic transformations for systematics, the ontogenetic method for determining character polarity (the biogenetic law of Nelson, 1978) is analyzed from the perspective of phylogenetic systematics. In phylogenetic systematics, as defined here, the relationships sought are those of common ancestry and, thus, the concept of phylogeny is taken as an a...

based on the randic suggestion of the resolution of a structure into shape, size, and function an index representing structure-catabolic fate relationships of amino acids is constructed. the index obtained by multiplying three factors; (nb2 + nr), nc and m; representing shape, size and function respectively, where nb2 = number of double bonds, nr = number of rings, nc = number of carbon atoms, ...

Integrative Systematics: Stuttgart Contributions to Natural History, which continues Stuttgarter Beiträge zur Naturkunde Serie A (Biologie), is issued by the State Museum of History and publishes articles general biological interest with a focus on morphological systematics.

Integrative Systematics: Stuttgart Contributions to Natural History, which continues Stuttgarter Beiträge zur Naturkunde Serie A (Biologie), is issued by the State Museum of History and publishes articles general biological interest with a focus on morphological systematics.

An account of the development of biological interest, and specifically interest in bees, by Charles D. Michener. Included topics are the role of graduate students and the relationship between behavioral studies and systematics. Sections are (a) upbringing, including initiation of biological interests, (b) early studies of bees, (c) student work at the University of California, Berkeley, (d) wor...

Red algal systematics has a solid morphological foundation, based on analyses of female reproductive structures and post-fertilization development by Kylin and other workers. Recognition of the value of pit-plug ultrastructure was a catalyst leading to refinement of the Kylinian ordinal classification. Molecular approaches to systematics have further advanced our understanding of the red algae ...

The Hubble Space Telescope has recently emerged as the first telescope to detect molecular signatures in an exoplanet via infrared spectroscopy. Molecular spectroscopy of exoplanets is demanding and requires an accurate determination and removal of the instrument systematics. Here we report on our effort to extract accurate exoplanet spectra from NICMOS spectrophotometry. We developed a standar...