We derive the evolution equations for the electric and magnetic parts of the Weyl tensor for cold dust from both general relativity and Newtonian gravity. In a locally inertial frame at rest in the fluid frame, the Newtonian equations agree with those of general relativity. We give explicit expressions for the electric and magnetic parts of the Weyl tensor in the Newtonian limit. In general, th...

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A common method of making a theory more understandable, is by comparing it to another theory which has been better developed. Radical interpretation is a theory which attempts to explain how communication has meaning. Radical interpretation is treated as another time-dependent theory and compared to the time dependent theory of biological evolution. The main reason for doing this is to find the...

We show that an evolution family of the unit disc is commuting if and only if the associated Herglotz vector field has separated variables. This is the case if and only if the evolution family comes from a semigroup of holomorphic self-maps of the disc.

How do genetic systems gain information by evolutionary processes? Answering this question precisely requires a robust, quantitative measure of information. Fortunately, 50 years ago Claude Shannon defined information as a decrease in the uncertainty of a receiver. For molecular systems, uncertainty is closely related to entropy and hence has clear connections to the Second Law of Thermodynamic...

Studies of software evolution have long tried to understand the interplay between the software itself and its developers. Such studies usually require extensive tool support due to large and complex data that need to be collected, processed, and analyzed. Although several tools have been proposed, they often provide limited support to studying software evolution by considering technical and soc...

The teaching of evolutionary theory represents one of the most exciting challenges for science teachers. The learning of the main principles of biological evolution and, more particularly, the origin of human species could be influenced by the socio-cultural environment. Our preliminary investigation among final year students of high schools located in both the centre and outlying area of the c...

Evolution is one of the major issues affecting system dependability as well as engineering activities and environments. The most common understanding considers evolution as a phenomenon that needs to be avoided. By contrast this paper takes into account evolution as a necessary feature of computerbased systems. This paper reviews a taxonomy of evolution identifying a conceptual framework to ana...