"El arvole ke da la flor". (A judezmo song in early-twentieth-century Salonika)

Este documento ofrece una transcripción de una canción compuesta en sefardí de Salónica anterior a 1913. Las versiones grabadas aquí (pueden existir otros) no podrían haber sido compuestas antes de 1897.This paper gives a transcript of a Judezmo song composed in Salonika before 1913. The versions recorded here (there may exist others) could not have been composed before 1897.notPeerReviewe

QUAD: Overview and Recent Developments

We give an outline of the specification and provable security features of the QUAD stream cipher proposed at Eurocrypt 2006. The cipher relies on the iteration of a multivariate system of quadratic equations over a finite field, typically GF(2) or a small extension. In the binary case, the security of the keystream generation can be related, in the concrete security model, to the conjectured intractability of the MQ problem of solving a random system of m equations in n unknowns. We show that this security reduction can be extended to incorporate the key and IV setup and provide a security argument related to the whole stream cipher.We also briefly address software and hardware performance issues and show that if one is willing to pseudorandomly generate the systems of quadratic polynomials underlying the cipher, this leads to suprisingly inexpensive hardware implementations of QUAD

Poética del Postismo en la obra de Eduardo Chicharro

Este artículo estudia los métodos característicos de la poesía del "Postismo" en la obra de Eduardo Chicharro, teniendo en cuenta la base teórica que define la estética de esta corriente literaria. Los rasgos estilísticos en trabajos de este escritor y de esta tendencia vanguardista de posguerra se caracterizan por el uso de dispositivos musicales, semánticas y sintácticos, que se analizan en el curso de este trabajo.Este artículo estudia los métodos característicos de la poesía del "Postismo" en la obra de Eduardo Chicharro, teniendo en cuenta la base teórica que define la estética de esta corriente literaria. Los rasgos estilísticos en trabajos de este escritor y de esta tendencia vanguardista de posguerra se caracterizan por el uso de dispositivos musicales, semánticas y sintácticos, que se analizan en el curso de este trabajo.notPeerReviewe

The hydrogen embrittlement of titanium alloys

Imperial Users onl

Setting-up a small observatory: from concept to construction

Every amateur astronomer who is considering a purpose-built observatory will find this book absolutely invaluable during both the planning and the construction stages. Drawing on David Arditti’s practical experience and that of many other amateur astronomers, it gives invaluable help in making all the important decisions. To begin with, Setting up a Small Observatory addresses what you really need from an observatory, whether to build or buy, what designs you should consider, and where you should site it. Uniquely, it also considers the aesthetics of an amateur observatory: how to make it fit in with your home, garden, and yard, even disguising it as a more common garden building if necessary. There’s also a wealth of practical details for constructing and equipping your small observatory – everything from satisfying local planning laws and building codes through to making sure that your completed observatory is well-equipped, convenient, and comfortable to use. Whether you are considering a simple low-tech DIY approach to a fixed observatory, or aspiring to a sophisticated domed building, there is something here for you