As transportation systems become increasingly complex and the roles of human operators and autonomous software continue to evolve, traditional safety-related analytical methods are becoming inadequate ...

High-dimensional systems that have a low-dimensional dominant behavior allow for model reduction and simplified analysis. We use differential analysis to formalize this important concept in a ...

The Legal Theory Behind Trump’s Power Grabs There was no “unitary executive” until some dudes made the idea up to save Nixon.

The standard model of how the universe works involves the widely accepted theory that dark energy is a fundamental constant of nature that drives the accelerating expansion of the universe. But a new ...

Objective As the discipline of nursing has advanced, research capacity in nursing has become increasingly important to the discipline’s development. However, research capacity in nursing is still ...

Original theoretical papers, concept analyses, and reviews that proposed new models were included. Operational models/definitions, development psychology theories and mechanisms of ageing were ...

Specializing in leadership and small group behaviour, she is the author of Theories of Small Group Development and co-author of three other books. Dr. Kass currently spearheads group theory courses in ...

A new analysis that began under the Biden administration is released by the C.I.A.’s new director, John Ratcliffe, who wants the agency to get “off the sidelines” in the debate.

Concepts are dynamically constructed and collectively negotiated meanings that classify the world according to interests and theories. Concepts and their development cannot be understood in isolation ...