Granular Patterns Aranson, Igor; Tsimring, Lev
2009, 2008-11-01, 2009-03-12
eBook
This book is a systematic introduction to the new and rapidly evolving field of patterns in granular materials. Granular matter is usually defined as a collection of discrete macroscopic solid ...particles (grains) with a typical size large enough that thermal fluctuations are negligible. Despite this seeming simplicity, properties of granular materials set them apart from conventional solids, liquids, and gases due to the dissipative and highly nonlinear nature of forces among grains. The last decade has seen an explosion of interest to nonequilibrium phenomena in granular matter among physicists, both on experimental and theoretical sides. Among these phenomena, one of the most intriguing is the ability of granular matter upon mechanical excitation to form highly ordered patterns of collective motion, such as ripples, avalanches, waves, or bands of segregated materials. This book combines a review of experiments with exposition of theoretical concepts and models introduced to understand the mechanisms of pattern formation in granular materials. The unique feature of this book is a strong effort to extend concepts and ideas developed in granular physics beyond the traditionally defined boundaries of the granular physics towards emergent fields, especially in biology, such as cytoskeleton dynamics, molecular motors transport, ordering of cells and other active (self-propelled) particles, dynamic self-assembly, etc.
LA LINGUA ITALIANA E L'UNITÀ NAZIONALE Vitale, Maurizio
Rivista di storia della filosofia (Milan, Italy : 1984),
01/2012, Letnik:
67, Številka:
4
Journal Article
This article contains the notes made by the Italian poetess Antonia Pozzi (1912-1938) while attending the university courses held by Antonio Banfi (1886-1957) during 1931-1932 and 1932-1933. They are ...useful for an understanding not only of her academic studies but also of Banfi's thinking on aesthetics in the 1930s. In two appendices, the Author describes the content of the Italian philosopher's courses on aesthetics between 1931-1932 and 1934-1935 (and in addition a course held by Giuseppe Antonio Borgese in 1930-1931) and Antonia Pozzi's university career. Unpublished until now, these notes by a student are the only existing record of those courses since Banfi's lecture notes never appeared in print.
In June 1927, the Kulturwissenschaftliche Bibliothek Warburg celebrated "forty years of bibliophily". On the occasion of the sixtieth birthday of his brother Max, Aby Warburg organized a guided tour ...of his library and a photographic exhibition presented with original documents: one example of the practical side of the "Bild und Wort" method. These two terms were used by Aby Warburg to describe a theme of his research, namely the complex relation between iconographic and textual tradition and the theory of the function of the human visual memory. At the same time, "image and word" were research tools, experimented by Warburg in structuring his lectures as reading plus slideshow plus guided visit of the panels and in creating a photographic collection in his Library. It was from this lecturing and exhibiting practice, and from the desire to collect and disseminate his research in a suitable manner, that Warburg's project for an atlas-book, entitled Mnemosyne, took its origin and form. "The" Mnemosyne was intended to be a work dedicated to the investigation of the dynamics of the Western tradition and its cultural memory, focusing on the examples provided by the "posthumous life" of antiquity during the Renaissance.
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