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According to some generalized correspondence principle the classical limit of a non-Hermitian quantum theory describing quantum degrees of freedom is expected to be the well known classical mechanics of classical degrees of freedom in the complex phase space, i.e., some phase space spanned by complex-valued space and momentum coordinates. As special relativity was developed by Einstein merely for real-valued space-time and four-momentum, we will try to understand how special relativity and covariance can be extended to complex-valued space-time and four-momentum. Our considerations will lead us not only to some unconventional derivation of Lorentz transformations for complex-valued velocities, but also to the non-Hermitian Klein-Gordon and Dirac equations, which are to lay the foundations of a non-Hermitian quantum theory.

What makes the collections of international institutions or regimes governing various domains—called in theliterature regime, institutional, or governance complexes—"complex"? This article examines several conditions for complexity discussed in that literature and finds them necessary but not sufficient. It argues that the sufficient condition is dependence and outlines a framework of increasing levels of synchronic (social/spatial) and diachronic (temporal) dependence. Putting dependence at the centre of discussions on regime complexes has four advantages: (1) it is analytically more precise a condition than proliferation or linkage; (2) it orients us toward questions of degree, 'how complex', instead of the binary 'whether complex'; (3) it informs a range of research design and theoretical choices, especially highlighting extra-dyadic dependencies and an underdeveloped temporal dimension; and (4) it arguably reconciles competing uses of the term "complex" in the literature without conflating it with complexity, structure, or topology.

Discover how girls develop a sense of self as they struggle to make sense of complexand complicated timesWorking Relationally with Girls: Complex Lives, Complex Identities examines the experience of being a girl in today's society and the difficulties social work practitioners face in developing a universal theory that represents that experience. This unique book analyzes how?and why?gender is still a complicated barrier for most girls, despite living in ?post-feminist? times. Working from a variety of orientations, the book offers practical suggestions on how to help girls deal with interpers

Cover -- Half Title -- Title -- Copyright -- Contents -- Acknowledgements -- Introduction -- 1 From Primate to Human -- 2 The Emergence of Symbolic Reasoning -- 3 Cognition and Adaptation -- 4 Encountering the Cultural World -- 5 Nature in Culture -- 6 Nonlinearity in the Social World -- 7 Nonmodernity and the Emergence of Cognition and Culture -- Bibliography.