A chemical element having a valency of one. The monad played a central role in the idealist philosophy of Leibniz. The points in a wave system where the amplitude of the wave is zero. The study of fossils and other records of ancient life. Photon .- Units or 'packets' of electromagnetic radiation.
Plasma physics is an important branch of modern science.
The coexistence of several well-defined distinct phenotypes or alleles in a population. It denies that philosophy is a world outlook and states that belief should be concentrated on a description of facts rather than an analysis of them. Positivism claims to be neutral and above philosophical outlooks, interested in processes but not willing to go beyond the boundaries of the status quo. In effect they confirm the maintenance of existing social structures. Substance within and including plasma-membrane of a cell or protoplasm.