What are the underlying principles of how populations change over time? Two basic principles are involved, the idea of exponential growth and its ultimate control. The basics of population ecology ...

The Standard Model is far more than elementary particles arranged in a table. The Standard Model of particle physics is often visualized as a table, similar to the periodic table of elements, and used ...

I. & 1. Another formulation of the conditions governing the value of money, 38.--II. & 2. The term "value of money," 39.--III. & 3. The demand for legal- tender money, 40.--& 4. The derived demand ...