P turtles (Chrysemys picta) are common residents of shallow lakes and marshes across much of North America east of the Rocky Mountains—so common, in fact, that the species has become a “model organism” for studies on the ecology and evolution of chelonians (Wilbur and Morin 1988). The natural history of painted turtles differs from that of most other species in an important respect, however. Wh...

•A species level phylogenetic analysis of Cyanophrys Clench was performed using 14 characters of the frons, wing venation, wing shape, androconia, and genitalia. There were 15 most parsimonious cladograms, and a successive weighting iteration resulted in three of these 15. Cyanophrys is characterized in this paper by two hypothesized synapomorphies (an expanded hindwing anal lobe that is tan-br...

We have used the Optical Redshift Survey (ORS; Santiago et al. 1995) to construct the gravity field due to fluctuations in the galaxy density field out to distances of 8000 km s. At large scales where linear theory applies, the comparison of this gravity field with the observed peculiar velocity field offers a powerful cosmological probe, because the predicted flow field is proportional to the ...

This paper demonstrates how philosophical thought can inform science, with reference to the interplay of causal and algorithmic thinking in Cognitive Science, Evolutionary Biology and other scientific enquiries. It is argued (touching briefly on the debate between Fictionalism and Realism regarding mathematics (Field 1989; Lewis 1991)) that algorithmic concepts (eg. substrate neutrality) are ma...

amount of academic energy invested in professing the urgent need for developing an Indigenous archaeology in North America, and indeed throughout the world. Books, essays, and academic conferences have discussed, defined, and designed a multiplicity of paths toward this goal (cf. articles and references cited in Conkey 2005; Dongoske et al. 2000; McNiven and Russell 2005; Nicholas and Andrews 1...

The influence of broken structural homology, and the implied broken dynamical homology, is examined for the Fundamental Plane (FP). Requiring a symmetrical treatment of the FP variables, a bisector method of linear regression was applied, in 3-dimensions, to derive the best FP. A bootstrapping procedure has been used to estimate the uncertainties associated with the slope of the FP. For 25 E an...

Innovation is critical for maintaining competitive advantage in a high tech global economy, especially for organizations or nations that do not possess low cost labor forces. Many studies on innovation attempt to identify endogenous and exogenous variables that impact innovation (Kostoff, 1997a), in order to better understand the environment that promotes innovation. The author’s recent efforts...

In this paper, I discuss a variety of theoretical and conceptual dimensions of Atlas.ti (Muhr, 1994, 1997a, 1997b). I draw on my own Atlas.ti experiences, and discuss advantages and disadvantages of using computer aided qualitative data analysis software (CAQDAS) (Lee and Fielding 1995). How can the quality of a research project be enhanced and how will the end product be affected? These are so...

Tricyclic antidepressants TCAs) are no longer widely prescribed as first choice treatments for depression. In their place have come the selective serotonin reuptake inhibitors (SSRIs). Sales of SSRIs and other new antidepressants have grown massively partly at the expense of tricyclics and partly because of burgeoning antidepressant prescribing in general (Lawrenson et al, 2000; Middleton et al...

We investigate the gravonuclear instabilities reported by Bono et al. (1997a,b) during the onset of helium-shell burning at the end of the horizontal-branch (HB) phase. These instabilities are characterized by relaxation oscillations within the helium shell which lead to loops in the evolutionary tracks. We find the occurrence of these instabilities depends critically on how the breathing pulse...