This is a preview. Log in through your library . Abstract Three forms of discontinuity in social structure produce linked analogous problems about aggregates or wholes: discontinuity in units, ...

Immunology — though deeply experimental in everyday practice — is also a theoretical discipline. Recent advances in the understanding of innate immunity, how it is triggered and how it shares features ...

Continuity or discontinuity of probability density functions of data often plays a fundamental role in empirical economic analysis. For example, for identification and inference of causal effects in ...