GalCEM. I. An Open-source Detailed Isotopic Chemical Evolution Code

Open Source Human Evolution

The Amos Project: an Approach to Reusing Open Source Code

Building reliable software products based on components whose properties are well established and understood is one of the key goals of component-based software development. There are some cases in which this approach has to face practical problems: for example, when code which has not been formally developed, but which is interesting, is needed, or when there is a very large number of componen...

An Approach for Measuring Software Evolution Using Source Code Features

One of the characteristics of large software systems is that they evolve over time. Evolution patterns include modifications related to the implementation, interfaces and the overall system structure. Consequently, system understanding and maintainability tend to degrade over time unless particular attention is paid to measure, assess and evaluate the effects of the evolution activities. Tradit...

Directed Chemical Evolution with an Outsized Genetic Code

The first demonstration that macromolecules could be evolved in a test tube was reported twenty-five years ago. That breakthrough meant that billions of years of chance discovery and refinement could be compressed into a few weeks, and provided a powerful tool that now dominates all aspects of protein engineering. A challenge has been to extend this scientific advance into synthetic chemical sp...

Code Architecture and Open Source Software Development

A model is developed to study how the code architecture affects open source software (OSS) development. The model incorporates the resource heterogeneity and diverse motivations of various groups of programmers as well as the strategic interactions among them. We argue that the major advantage brought by a modular architecture of OSS code base is that it reduces both the cognitive cost and the ...