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The Female Population Of France In The 19th Century

RRP $312.00

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In analyzing the social and economic factors underlying the decline of fertility in nineteenth-century France. Etienne van de Walle found that official statistics for the period were incomplete and inaccurate. He thus undertook a full reconstruction. In this volume, he presents a detailed discussion of the methodology used to correct and to supplement these official statistics, along with the results of the reconstruction of 82 French departements, and French and English summaries of his findings.


By computing standardized indices of fertility and nuptiality for each of the 82 departements, the author extends the period for which standardized demographic indices are available. His methodology, which evaluates and corrects the biases and defects of the official statistics, provides a model for similar background studies in the future.


Originally published in 1974.


The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These paperback editions preserve the original texts of these important books while presenting them in durable paperback editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.



Thin Impedance Vibrators

RRP $491.99

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The book is devoted to exploring the foundations of the theory of thin impedance vibrator antennas. The text provides a continuation of the classic theory of thin perfectly conducting vibrators. Many consider impedance conception one of the most universal models in the theory of wave processes, as it informs such a wide spectrum of uses in solving practical problems of electrodynamics. This topic provides an opportunity to further search analytical solutions, allowing a simplification of the mathematical formulation of the boundary problem. The theory strives to widen the boundaries of the impedance vibrator antennas application in complex modern radio-and-electronic systems and devices. The results of much original research conducted by the authors will be useful for practicing engineers and designers of antenna and waveguide systems. The book is written in an academic style, and can be used to teach students and post graduates about radiotechnical and radiophysical specialities. The conclusion of the book lists many actual applied problems, which can provide inspiration for several potential PhD projects. Topics covered in this book are: *general questions of the theory of impedance vibrators in the spatial-frequency representation *electromagnetic waves radiation by impedance vibrators in free space and material mediums *electromagnetic waves radiation by impedance vibrators in material mediums over the perfectly conducting plane *electromagnetic waves scattering by irregular impedance vibrators in free space *generalized method of induced electromotive forces for investigation of the characteristics of impedance vibrators *radiation of electromagnetic waves by radial impedance vibrators on the perfectly conducting sphere *electromagnetic waves scattering by impedance vibrators in the rectangular waveguide



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