61 research outputs found
"El arvole ke da la flor". (A judezmo song in early-twentieth-century Salonika)
Este documento ofrece una transcripción de una canción compuesta en sefardà de Salónica anterior a 1913. Las versiones grabadas aquà (pueden existir otros) no podrÃan 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 artÃculo estudia los métodos caracterÃsticos de la poesÃa del "Postismo" en la obra de Eduardo Chicharro, teniendo en cuenta la base teórica que define la estética de esta corriente literaria. Los rasgos estilÃsticos 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 artÃculo estudia los métodos caracterÃsticos de la poesÃa del "Postismo" en la obra de Eduardo Chicharro, teniendo en cuenta la base teórica que define la estética de esta corriente literaria. Los rasgos estilÃsticos 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
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