50,761 research outputs found
Integrable quasiclassical deformations of algebraic curves
No full text©IOP Publishing.
L Martinez Alonso wishes to thank the members of the Physics Department of Lecce University for their warm hospitality. This work was partially supported by DGCYT project BFM2002- 01607 and by the grant COFIN 2002 ‘Sintesi’.A general scheme for determining and studying integrable deformations of algebraic curves, based on the use of Lenard relations, is presented. The method is illustrated with the analysis of the hyperelliptic case. An associated multi-Hamiltonian hierarchy of systems of hydrodynamic type is characterized.DGCYTCOFINDepto. de Física TeóricaFac. de Ciencias FísicasTRUEpu
Nonlinear Dynamics on the Plane and Integrable Hierarchies of Infinitesimal Deformations
No full text©2002 by the Massachusetts Institute of Technology.
The authors are very grateful to the Isaac Newton Institute for Mathematical Sciences of Cambridge, where this work has been done and written, for the kind hospitality. They are also grateful to the organizers of the programme “Integrable Systems” for the support provided. L. Martínez Alonso wishes to thank the Fundacion Banco Bilbao Vizcaya Argentaria for supporting his stay at Cambridge University as a BBV visiting professor.A class of nonlinear problems on the plane, described by nonlinear inhomogeneous ∂¯-equations, is considered. It is shown that the corresponding dynamics, generated by deformations of inhomogeneous terms (sources), is described by Hamilton–Jacobi-type equations associated with hierarchies of dispersionless integrable systems. These hierarchies are constructed by applying the quasiclassical ∂¯-dressing method.Depto. de Física TeóricaFac. de Ciencias FísicasTRUEpu
Alicia Alonso. Clases y Ensayos. MD_AA_S_10 / 89
No full textAlicia Alonso durante una clase en la antigua sede de L y 11 cuando era la academia Alicia Alonso. Aparecen Sonia Calero y Mirta Plá
Vivir con la poesia. Epistolario inedito (1951-1984)
No full textThis book, printed as a supplement to the digital review "BILRAE" of the Real Academia Española, publishes the unpublished letters of the Spanish poet Dámaso Alonso and the critic Oreste Macrí offering, in addition to an interesting example of intense and lasting collaboration between author and translator, important statements on the meaning of the verses that the poet himself - stimulated by the questions put to him - clarifies, retranslates and sometimes rewrites.Questo libro, pubblicato come supplemento della rivista "BILRAE" della Real Academia Española, pubblica le lettere inedite del poeta spagnolo Dámaso Alonso e del critico Oreste Macrí offrendo, oltre a un interessante esempio di collaborazione intensa e duratura tra autore e traduttore, importanti dichiarazioni sul significato dei versi che lo stesso poeta - stimolato dalle domande rivoltegli - chiarisce, ritraduce e talvolta riscrive
Alicia Alonso. Personalidades. MD_AA_S_41 / 448
No full textAlicia Alonso junto al crítico inglés Arnold L Haskell
Alicia Alonso. Clases y Ensayos. MD_AA_S_10 / 85
No full textAlicia Alonso en un ensayo en la antigua sede de L y 11
The astrophysical weeds: Rotational transitions in excited vibrational states
No full textMade available in DSpace on 2017-07-27T20:15:42Z (GMT). No. of bitstreams: 2
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Previous issue date: 6Made available in DSpace on 2018-01-29T23:03:27Z (GMT). No. of bitstreams: 3
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Previous issue date: 6The number of unidentified lines in the millimeter and submillimeter wave surveys of the interstellar medium has grown rapidly. The major contributions are due to rotational transitions in excited vibrational states of a relatively few molecules that are called the astrophysical weeds footnote{Fortman, S. M., Medvedev, I. R., Neese, C.F., & De Lucia, F.C. 2010, ApJ,725, 1682} footnote{Rotational Spectra in 29 Vibrationally Excited States of Interstellar Aminoacetonitrile, L. Kolesnikov'{a}, E. R. Alonso, S. Mata, and J. L. Alonso, The Astrophysical Journal Supplement Series 2017, (in press).}. The necessary data to deal with spectral lines from astrophysical weeds species can be obtained from detailed laboratory rotational measurements in the microwave and millimeter wave region. A general procedure is being used at Valladolid combining different time and/or frequency domain spectroscopic tools of varying importance for providing the precise set of spectroscopic constants that could be used to search for this species in the ISM. This is illustrated in the present contribution through its application to several significant examples
Poa trivialis L., nueva planta nutricia para Subhaptomerus frieseri avilai Alonso Zarazaga, 1983 (Coleoptera, Curculionidae)
No full text[EN]: Poa trivialis L., a new host-plant for Subhaptomerus frieseri avilai Alonso-Zarazaga, 1983 (Coleoptera, Curculionidae). Subhaptomerus frieseri avilai Alonso Zarazaga, 1983 was described from Luciana (Ciudad Real) on plants from the cabbage family (Brassicaceae). This original host-plant information is discussed, data about a host-plant, Poa trivialis L. (Poaceae), are provided and its distribution is expanded, always within the province of Ciudad Real.[ES]: Subhaptomerus frieseri avilai Alonso Zarazaga, 1983 fue descrito de Luciana (Ciudad Real) sobre crucíferas (Brassicaceae). Se discute la corrección de este último dato, se aporta información sobre la planta nutricia, Poa trivialis L. (Poaceae) y se amplía su distribución, siempre dentro de la provincia de Ciudad Real.Peer Reviewe
Millimeter wave spectra of methyl cyanate, methoxyamine and n-methylhydroxylamine: laboratory studies and astronomical search in space
No full textRecent discovery of methyl isocyanate (CHNCO) in Sgr B2(N) and Orion KL\footnote{D.~T.~Halfen, V.~V.~Ilyushin, L.~Ziurys, \textit{Astrophys. J. Lett.}, \textbf{2015}, \textit{812}, L5.}\footnote{J.~Cernicharo, Z.~Kisiel, B.~Tercero, L.~Kolesnikov\'{a}, I.~R.~Medvedev et. al., \textit{Astron. Astrophys.}, \textbf{2016}, \textit{587}, L4.} makes methyl cyanate (CHOCN) a potential molecule in the interstellar medium.
Methoxyamine (CHONH) and its isomeric form N-methylhydroxylamine (CHNHOH) may be considered as a potential interstellar amines.\footnote{R. T. Garrod, S. L. Widicus Weaver, E. Herbst, \textit{Astrophys. J.}, \textbf{2008}, \textit{682}, 283.} Pure rotational transitions belonging to the ground state and several excited vibrational states were measured and analyzed up to 400 GHz. Rotational transitions revealed - splitting due to the methyl internal rotation and were globally analyzed in order to provide a precise set of the spectroscopic constants. Results of this work were used to search for the spectral features of methyl cyanate in Orion KL, Sgr B2(N), B1-b and TMC-1 molecular clouds.\footnote{L.~Kolesnikov\'{a}, J.~L.~Alonso, C. Berm\'{u}dez, E.~R.~Alonso, J.~Cernicharo et. al., \textit{Astron. Astrophys.}, \textbf{2016}, accepted.}Made available in DSpace on 2017-01-26T21:38:43Z (GMT). No. of bitstreams: 3
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Previous issue date: 2016-06-2
THE ROTATIONAL STUDY OF DOPAC, A NEURAL METABOLITE
No full textDOPAC (3,4-Dihydroxyphenylacetic acid) is an intermediate neural metabolite in the cycle of catecholamines,\footnote{
C. Cabezas, I. Peña, J. C. López and J. L. Alonso, Seven conformers of neutral dopamine revealed in the gas phase, J. Phys. Chem. Lett., 2013, 4, 486–490 and references therein.} concretely in the metabolic reaction of dopamine (DA) to produce homovanillic acid (HVA), a substance that being present in urine in a large quantity, is indicative of health problems. In this work, we present a rotational study to explore the conformational preferences of DOPAC. It has been brought into gas phase avoiding decomposition by laser ablation LA of the solid sample, and the conformers present in the supersonic expansion have been probed by CP-FTMW spectroscopy.\footnote{I. Peña, S. Mata, A. Martín, C. Cabezas, A. M. Daly and J. L. Alonso, Conformations of D-xylose: the pivotal role of the intramolecular hydrogen-bonding., Phys. Chem. Chem. Phys., 2013, 15, 18243–8.} As we will show, several conformers have been detected and characterized. All the data obtained is presented in this communication
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