1.

Record Nr.

UNINA9910457141403321

Autore

Luchte James

Titolo

Pythagoras and the doctrine of transmigration : wandering souls / James Luchte

Pubbl/distr/stampa

London ; New York, : Continuum, 2009

ISBN

1-4725-9800-8

1-282-45279-7

1-4411-0401-1

Descrizione fisica

1 online resource (215 p.)

Collana

Continuum studies in ancient philosophy

Disciplina

182/.2

Soggetti

Transmigration

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index

Nota di contenuto

Introduction : the poetic topos of the doctrine of transmigration -- Genealogy of the doctrine of transmigration -- Beyond mysticism and science : symbolism and philosophical magic -- The emergence of mystic cults and the immortal soul -- Philolaus and the question of pythagorean harmony -- The alleged critique of Pythagoras by Parmenides -- Between the earth and the sky : on the pythagorean divine -- The pythagorean bios and the doctrine of transmigration -- The path of the event -- The path of remembrance or return -- The platonic rupture : writing and difference -- Plotinus : the ascent of the soul toward the one -- Plotinus as neoplatonic mystic : letter to Flaccus -- Epilogue : the fate of the doctrine of transmigration

Introduction: The Poetic Topos of the Doctrine of Transmigration -- 1. Genealogy of the Doctrine of Transmigration -- 2. Beyond Mysticism and Science: Symbolism and Philosophical Magic -- 3. The Emergence of Mystic Cults and the Immortal Soul -- 4. Philolaus and the Question of Pythagorean Harmony -- 5. The Alleged Critique of Pythagoras by Parmenides -- 6. Between the Earth and the Sky: On the Pythagorean Divine -- 7. The Pythagorean Bios and the Doctrine of Transmigration -- 8. The Platonic Rupture: Writing and Difference -- 9. Plotinus: The Ascent of the Soul toward the One -- 10. Plotinus as Neoplatonic Mystic: Letter to Flaccus -- Epilogue: The Fate of the Doctrine of Transmigration -- Bibliography -- Index --



Sommario/riassunto

The mythical narrative of transmigration tells the story of myriad wandering souls, each migrating from body to body along a path of recurrence amid the becoming of the All. In this highly original study, James Luchte explores the ways in which the concept of transmigration is a central motif in Pythagoras' philosophy, representing its fundamental meaning. Luchte argues that the many strands of the tale of transmigration come together in the Pythagorean philosophical movement, revealing a unity in which, for Pythagoreans, existence and eschatology are separated only by forgetfulness. Such an interpretation that seeks to retrieve the unity of Pythagorean thought goes against the grain of a long-standing tradition of interpretation that projects upon Pythagoras the segregation of 'mysticism' and 'science'. Luchte lays out an alternative interpretation of Pythagorean philosophy as magical in the sense that it orchestrates a holistic harmonization of theoria and praxis and through this reading discloses the radical character of Pythagorean philosophy.

2.

Record Nr.

UNINA9910555168203321

Autore

Achouri Karim

Titolo

Electromagnetic metasurfaces : theory and applications / / Christophe Caloz, Karim Achouri

Pubbl/distr/stampa

Hoboken, New Jersey : , : Wiley-IEEE Press, , [2021]

©2021

ISBN

1-119-52517-9

1-119-52519-5

1-119-52521-7

Descrizione fisica

1 online resource (214 pages)

Collana

IEEE Press Ser.

Disciplina

620.11267

Soggetti

Metasurfaces

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Cover -- Title Page -- Copyright -- Contents -- Preface -- Chapter 1 Introduction -- 1.1 Metamaterials -- 1.2 Emergence of Metasurfaces -- Chapter 2 Electromagnetic Properties of Materials -- 2.1 Bianisotropic



Constitutive Relations -- 2.2 Temporal Dispersion -- 2.2.1 Causality and Kramers-Kronig Relations -- 2.2.2 Lorentz Oscillator Model -- 2.3 Spatial Dispersion -- 2.4 Lorentz Reciprocity Theorem -- 2.5 Poynting Theorem -- 2.6 Energy Conservation in Lossless-Gainless Systems -- 2.7 Classification of Bianisotropic Media -- Chapter 3 Metasurface Modeling -- 3.1 Effective Homogeneity -- 3.1.1 The Homogeneity Paradox -- 3.1.2 Theory of Periodic Structures -- 3.1.3 Scattering from Gratings -- 3.1.4 Homogenization -- 3.2 Effective Zero Thickness -- 3.3 Sheet Boundary Conditions -- 3.3.1 Impedance Modeling -- 3.3.2 Polarizability Modeling -- 3.3.3 Susceptibility Modeling -- 3.3.4 Comparisons Between the Models -- 3.3.4.1 Microscopic and Macroscopic Perspectives -- 3.3.4.2 Material Tensor Dimensions and Normal Polarizations -- 3.3.4.3 Uniform and Nonuniform Metasurfaces -- 3.3.4.4 Extension to Time‐Varying or Nonlinear Systems -- Chapter 4 Susceptibility Synthesis -- 4.1 Linear Time‐Invariant Metasurfaces -- 4.1.1 Basic Assumptions -- 4.1.2 Birefringent Metasurfaces -- 4.1.3 Multiple‐Transformation Metasurfaces -- 4.1.4 Relations Between Susceptibilities and Scattering Parameters -- 4.1.5 Surface‐Wave Eigenvalue Problem -- 4.1.5.1 Formulation of the Problem -- 4.1.5.2 Dispersion in a Symmetric Environment -- 4.1.6 Metasurfaces with Normal Polarizations -- 4.1.7 Illustrative Examples -- 4.1.7.1 Polarization Rotation -- 4.1.7.2 Multiple Nonreciprocal Transformations -- 4.1.7.3 Angle‐Dependent Transformations -- 4.2 Time‐Varying Metasurfaces -- 4.2.1 Formulation of the Problem -- 4.2.2 Harmonic‐Generation Time‐Varying Metasurface.

4.3 Nonlinear Metasurfaces -- 4.3.1 Second‐Order Nonlinearity -- 4.3.1.1 Frequency‐Domain Approach -- 4.3.1.2 Time‐Domain Approach -- Chapter 5 Scattered Field Computation -- 5.1 Fourier‐Based Propagation Method -- 5.2 Finite‐Difference Frequency‐Domain Method -- 5.3 Finite‐Difference Time‐Domain Method -- 5.3.1 Time‐Varying Dispersionless Metasurfaces -- 5.3.2 Time‐Varying Dispersive Metasurfaces -- 5.4 Spectral‐Domain Integral Equation Method -- Chapter 6 Practical Implementation -- 6.1 General Implementation Procedure -- 6.2 Basic Strategies for Full‐Phase Coverage -- 6.2.1 Linear Polarization -- 6.2.1.1 Metallic Scattering Particles -- 6.2.1.2 Dielectric Scattering Particles -- 6.2.2 Circular Polarization -- 6.3 Full‐Phase Coverage with Perfect Matching -- 6.4 Effects of Symmetry Breaking -- 6.4.1 Angular Scattering -- 6.4.2 Polarization Conversion -- Chapter 7 Applications -- 7.1 Angle‐Independent Transformation -- 7.2 Perfect Matching -- 7.3 Generalized Refraction -- 7.3.1 Limitations of Conventional Synthesis Methods -- 7.3.2 Perfect Refraction Using Bianisotropy -- Chapter 8 Conclusions -- Chapter 9 Appendix -- 9.1 Approximation of Average Fields at an Interface -- 9.2 Fields Radiated by a Sheet of Dipole Moments -- 9.3 Relations Between Susceptibilities and Polarizabilities -- References -- Index -- EULA.