the concept has existed as a serious theoretical concept long before sci-fi writers got hold of it. It comes out of Albert Einstein's theory of general relativity, which views gravity as a ...

The attainment at this stage allows the adolescent or adult to critically reflect on emotionally loaded, abstract concepts ... Piaget's Theory of Cognitive Development (2nd edition).

In theory, EBO could be employed broadly ... to a situation that the concept development process, and all of its attendant evaluation and war-gaming, ought to have anticipated and yet did not.

In the book, the Five Major Development Concepts are explained in theory and illustrated in practice through real-world case studies. Guided by the book, I traveled across China with our CCTV crew ...