We have measured the Fundamental Plane (FP) parameters for a sample of 30 field early-type galaxies (E/S0) in the redshift range 0.1 < z < 0.66. We find that: i) the FP is defined and tight out to the highest redshift bin; ii) the intercept γ evolves as dγ/dz = 0.58 −0.13 (for Ω = 0.3,ΩΛ = 0.7), or, in terms of average effective mass to light ratio, as d log(M/LB)/dz = −0.72 +0.11 −0.16, i. e. ...

The paper distinguishes between two kinds of mathematics, natural mathematics which is a result of biological evolution and artificial mathematics which is a result of cultural evolution. On this basis, it outlines an approach to the philosophy of mathematics which involves a new treatment of the method of mathematics, the notion of demonstration, the questions of discovery and justification, t...

Jerry A. Coyne is a professor at the University of Chicago, where his research focuses on evolutionary genetics and speciation. In Why Evolution Is True, he presents a full-scale defence of modern evolutionary theory, which can, so he notes, be described in one long sentence: Life on earth evolved gradually beginning with one primitive species – perhaps a self-replicating molecule – that lived ...

Requirements change for a variety of reasons and at different stages of the project development. Changes to items in a requirements document must be propagated to other items that depend on the changed items in order to maintain their consistency. This paper explores the use of semantic annotations in requirements document templates to support requirements evolution.