Mr. Carnegie as Economist and Social Reformer

The Economist as Plumber

Raspail, Scientist and Reformer

soil in which they were found but are the remains of animals living in the sea on whose bed the soil (sediment) was deposited. The latter paper is a summary of a projected further work which unfortunately never appeared. It is the Prodromus that contained the first statement of the Law of Superposition; and much more. 'If, in a certain stratum, we find great abundance of rushes, grass, pine con...

Carnegie Mellon University Carnegie Institute of Technology System Safety as an Emergent Property in Composite Systems

Correctly specifying requirements for composite systems is essential to system safety. In a distributed development environment, safety requirements must be clearly defined for subsystems. Unfortunately, decomposing non-functional requirements, also known as goals, is not always straightforward. Quantifiable goals, such as cost or performance, may be decomposed by allocating a fixed limit on ea...

De Economist

We analyze the dynamic behaviour of firms that locally interact through price competition in a social environment in an evolutionary game-theoretic model. These firms update their prices according to the behavioural rule ‘Win Cooperate, Lose Defect’ ~WCLD!, which is often observed in experimental economics. It can be regarded as a generalized Tit-for-Tat strategy. The model can explain the simu...

Carnegie Stages

Historically the exact age of human embryo specimens has long perplexed embryologists. With the menstrual history of the mother often unknown or not exact, and the premenstrual and postmenstrual phases varying considerably among women, age sometimes came down to a best guess based on the weight and size of the embryo. Wilhelm His [5] was one of the first to write comparative descriptions of hum...