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Documentos disponibles de esta editorial (57)
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Martínez Matos, Óscar ; Torchia, Gustavo Adrián ; Lencina, Alberto Germán ; Tocho, Jorge Omar | Springer-Verlag | 2008-05Volume grating formation by spatially-selective defect bleaching is demonstrated in coloured KCl:CO_3K_2 crystals. The sample is coloured by a train of pulses with a wavelength of ?=?266 nm and bleached with a cw Ar-laser with a wavelength of ?=[...]texto impreso
Cano Sevilla, Francisco Jose ; Lázaro, L. ; Luna, G. ; Marin, E. ; Martín, J. ; Rio del, A. ; Santesmases , J. G. ; Yurramendi, Y. | Springer-Verlag | 1988This paper shows the steps we have taken in order to define and design a first prototype of an expert system aimed at the general practitioner. The first part is devoted to analyze the systemic approach we gave to the definition problem. Also ar[...]texto impreso
Minuesa Asensio, Álvaro ; Barrio Asensio, María del Carmen ; González Gómez, Ignacio ; Murillo González, Jorge Alfonso | Springer-Verlag | 2016-07The different approaches used in arthroscopic stabilisation of the acromioclavicular joint are well known. However, and despite a great incidence of ectopic pectoralis minor insertion, an alternative choice for the use of arthroscopic portal has[...]texto impreso
In this note we prove that the uniformity of a complete metric space X is characterized by the vector lattice structure of the set U(X) of all uniformly continuous real functions on X.texto impreso
Villarino, Guillermo ; Gómez, Daniel ; Rodríguez, Juan Tinguaro ; Montero, Javier | Springer-Verlag | 2018Most supervised classification algorithms produce a soft score (either a probability, a fuzzy degree, a possibility, a cost, etc.) assessing the strength of the association between items and classes. After that, each item is assigned to the clas[...]texto impreso
Llanes Estrada, Felipe José ; Cotanch, Stephen R. ; Szczepaniak, Adam P. ; Swanson, Eric S. | Springer-Verlag | 2004-03We review theoretical calculations for the pseudoscalar vector meson hyperfine splitting with no open flavor and also report a many body field theoretical effort to assess the impact of chiral symmetry in the choice of effective potentials for r[...]texto impreso
Symmetry exists in nature and art. The rotational symmetry of a simple daisy must have at one time or another stirred geometric thoughts in the least mathematical mind. On a higher scale, the florets of Helianthus maximus naturally arrange thems[...]texto impreso
We show how to enlarge the covariance groups of a wide variety of classical field theories in such a way that the resulting “covariantized” theories are éssentially equivalent to the originals. In particular, our technique will render many class[...]texto impreso
Bonet Fernández, Juan Manuel ; Aroca Aguilar, José Daniel ; Corton Pérez, Marta ; Ramírez Sebastián, Ana Isabel ; Alexandre Moreno, Susana ; García Antón, María Teresa ; Salazar Corral, Juan José ; Ferre Fernández, Jesús José ; Atienzar Aroca, Raquel ; Villaverde Montero, Cristina ; Iancu, Ionut ; Tamayo Durán, Alejandra ; Méndez Hernández, Carmen D. ; Morales Fernández, Laura ; Rojas López, Blanca ; Ayuso García, Carmen ; Coca Prados, Miguel ; Martínez de la Casa, Jose Maria ; García Feijoo, Julián ; Escribano, Julio | Springer-Verlag | 2020-04-09Abnormal development of the ocular anterior segment may lead to a spectrum of clinical phenotypes ranging from primary congenital glaucoma (PCG) to variable anterior segment dysgenesis (ASD). The main objective of this study was to identify the [...]texto impreso
Magnini, Bernardo ; Romagnoli, Simone ; Vallin, Alessandro ; Herrera, Jesús ; Peñas, Anselmo ; Peinado, Víctor ; Verdejo, Felisa ; de Rijke, Maarten | Springer-Verlag | 2004This paper describes the procedure adopted by the three coordinators of the CLEF 2003 question answering track (ITC-irst, UNED and ILLC) to create the question set for the monolingual tasks. Despite the few resources available, the three groups [...]texto impreso
Gallego Rodrigo, Francisco Javier ; González Andrés, Miguel ; Purnaprajna, Bangere P. | Springer-Verlag | 2010-06-05In this article we study the deformation of finite maps and show how to use this deformation theory to construct varieties with given invariants in a projective space. Among other things, we prove a criterion that determines when a finite map ca[...]texto impreso
Organista, Elia ; Domínguez-Rodrigo, Manuel ; Egeland, Charles P. ; Uribelarrea del Val, David ; Mabulla, Audax ; Baquedano, Enrique | Springer-Verlag | 2016-09New research and excavations at Bell Korongo (BK, Olduvai Gorge, Upper Bed II) have uncovered a dense concentration of megafauna that contributes to our understanding of Homo erectus subsistence strategies around 1.34 Ma. Recent work has yielded[...]texto impreso
The time dependence of deviations from the Gaussian state in a freely cooling homogeneous system of smooth inelastically colliding spheres is investigated by kinetic theory. We determine the full time dependence of the coefficients of an expansi[...]texto impreso
We introduced previously an on-line resource, RANKPEP that uses position specific scoring matrices (PSSMs) or profiles for the prediction of peptide-MHC class I (MHCI) binding as a basis for CD8 T-cell epitope identification. Here, using PSSMs t[...]texto impreso
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Ventre-Lespiaucq, Agustina B. ; Escribano Rocafort, Adrián Gaspar ; Delgado Sáez, Juan Antonio ; Jiménez Escobar, María Dolores ; Rubio de Casas, Rafael ; Granado Yela, Carlos ; Balaguer Núñez, Luis | Springer-Verlag | 2016-06The light environment within a tree crown can be characterized by specific variation patterns arising from the structural features of the crown. Within-crown light variation patterns can be important for plant productivity, but this has yet to b[...]texto impreso
Supervised classification in remote sensing is a very complex problem and involves steps of different nature, including a serious data preprocessing. The final objective can be stated in terms of a classification of isolated pixels between class[...]texto impreso
García Quintana, Álvaro ; Martín Duque, José Francisco ; González Martín, Francisco Javier ; García Hidalgo, J.F. ; Pedraza Gilsanz, Javier de ; Herranz Araújo, Pedro ; Rincón, R. ; Estévez Martín, Hugo | Springer-Verlag | 2005Methods commonly used in regional geological analysis were employed to study the visual landscapes of the Sigüenza–Molina de Aragón area (Spain). Landscape data were compiled to produce a landscape map and a photograph catalogue. Lithological co[...]texto impreso
Oblatum 28-XII-1988 & 26-III-1990 & 10-X-1990 & 13-VI-1991 & 30-IX-1991. Supported by Université de Toulouse, CONACYT-CNRS and CAICYT-87-336 Fulltext Previewtexto impreso
Barrio Asensio, María del Carmen ; Murillo González, Jorge Alfonso ; Peña Melián, Ángel ; Puerta Fonollá, Javier | Springer-Verlag | 1999-10The ontogenic development of the sphincter iris has been studied by immunocytochemistry and standard staining on chick embryos from stage 25 HH to the time of hatching. We have used the monoclonal antibody 13F4, a highly specific marker of muscu[...]texto impreso
The continuous Hopfield network (CHN) can be used to solve, among other combinatorial optimization problems, the traveling salesman problem (TSP). In order to improve the performance of this heuristic technique, a divide-and-conquer strategy bas[...]texto impreso
López Alonso, Covadonga ; Fernández-Pampillón Cesteros, Ana María ; De Miguel García, Elena ; Pita Puértolas, Gustavo | Springer-Verlag | 2008Learning is the basis for research and lifelong training. The implementation of virtual environments for developing this competency requires the use of effective learning models. In this study we present an experiment in positive learning from t[...]texto impreso
Cruz García, Jesús Manuel de la ; Bamford, Richard N. ; Burdine, Rebecca D. ; Roessler, Erich ; Barkovich, A. James ; Donnai, Dian ; Schier, Alexander F. ; Muenke, Maximiliam | Springer-Verlag | 2002-05TDGF1 (CRIPTO) is an EGF-CFC family member and an obligate co-receptor involved in NODAL signaling, a developmental program implicated in midline, forebrain, and left-right axis development in model organisms. Previous studies of CFC1 (CRYPTIC),[...]texto impreso
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Minimung-divergence functionals and their associated estimators are defined. The estimators are based on a non-parametric density estimator. Existence and robustness of the functional and convergence of the estimator are proved. (Spanish:Se intr[...]texto impreso
Assymptotic behaviour of minimumg-divergence functionals and their associated estimators are introduced for two choices of the functiong. A simulation study is done in order to prove numerically their properties. (Spanish:Se realizan dos estudio[...]texto impreso
Ruiz Sánchez, Francisco Javier ; Lacomba Andueza, José Ignacio ; Freudenthal, Matthijs ; Álvarez Sierra, María Ángeles | Springer-Verlag | 2014In this paper, a new species of Vasseuromys, V. bergasensis sp. nov., from the locality of Bergasa (Ebro Basin, Spain), is described. Bergasa contains a fauna belonging to the Late Oligocene (zone MP30), composed— among other species—of Issiodor[...]texto impreso
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Moreno, B. ; Radicella, S. ; Lacy de, M.C. ; Herraiz, M. ; Rodríguez Caderot, Gracia | Springer-Verlag | 2011In precise point positioning (PPP), the ionospheric delay is corrected in a first-order approximation from GPS dual-frequency observations, which should eliminate almost completely the ionosphere as a source of error. However, sudden plasma dens[...]texto impreso
Martínez Matos, Óscar ; Torchia, Gustavo Adrián ; Bilmes, Gabriel M. ; Tocho, Jorge Omar ; Ranea Sandoval, Héctor Francisco | Springer-Verlag | 2005-04The origin of the acoustic signals that are generated in the bulk of a KDP crystal during irradiation with short UV laser pulses is determined. The generation of these signals by excitation with moderate or high optical fluences is linked to the[...]texto impreso
Montesinos Amilibia, José María ; Hilden, Hugh Michael ; Lozano Imízcoz, María Teresa | Springer-Verlag | 1988The authors improve the result of their previous paper on universal groups [the authors and W. Whitten, Invent. Math. 87, 411-456] and apply them to prove several interesting results on 3-manifolds. We quote some of these results below, adding n[...]texto impreso
Montesinos Amilibia, José María ; Hilden, Hugh Michael ; Lozano Imízcoz, María Teresa ; Whitten, Wilbur Carrington | Springer-Verlag | 1987Let P be a regular dodecahedron in the hyperbolic 3-space H3with the dihedral angles 90?. Choose 6 mutually disjoint edgesE1,E2,?,E6 of P such that each face of P intersects E1?E2???E6 in one edge and the opposite vertex. Let U be the group of o[...]texto impreso
Lillo, Javier ; Oyarzun, Roberto ; Esbrí Victor, José María ; García Lorenzo, Mari Luz ; Higueras, Pablo | Springer-Verlag | 2015In this chapter, published geochemical data for soils from several Pb–Zn mine sites and districts from Spain are reviewed. Although most of the mines have closed down, a legacy of highly polluted soils still remains throughout the sites constitu[...]texto impreso
The key step in stereovision is image matching. This is carried out on the basis of selecting features, edge points, edge segments, regions, corners, etc. Once the features have been selected, a set of attributes (properties) for matching is cho[...]texto impreso
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A Pilot Question Answering Task has been activated in the Cross-Language Evaluation Forum 2004 with a twofold objective. In the first place, the evaluation of Question Answering systems when they have to answer conjunctive lists, disjunctive lis[...]texto impreso
This paper concerns the Routh reduction procedure for Lagrangians systems with symmetry. It differs from the existing results on geometric Routh reduction in the fact that no regularity conditions on either the Lagrangian L or the momentum map J[...]texto impreso
We extend Schwartzman theory beyond dimension 1 and provide a unified treatment of Ruelle-Sullivan and Schwartzman theories via Birkhoff’s ergodic theorem for the class of immersions of solenoids with a trapping region.texto impreso
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This paper reports the most significant issues related to the launching of a Monolingual Spanish Question Answering evaluation track at the Cross Language Evaluation Forum (CLEF 2003). It introduces some questions about multilingualism and descr[...]texto impreso
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The hemipelagic domain of the ancient southern continental margin of Iberia is home to a strongly condensed pelagic succession (6–15 cm thick) characterized by the presence of phosphate stromatolites. This succession, probably generated in the s[...]texto impreso
The Recognizing Textual Entailment System shown here is based on the use of a broad-coverage parser to extract dependency relationships; in addition, WordNet relations are used to recognize entailment at the lexical level. The work investigates [...]texto impreso
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Gracia Téllez, Ana ; Martínez Lage, Juan F. ; Arsuaga, Juan Luis ; Martínez Mendizábal, Ignacio ; Lorenzo Merino, Carlos ; Pérez Espejo, Miguel Ángel | Springer-Verlag | 2010Background The authors report the morphological and neuroimaging findings of an immature human fossil (Cranium 14) diagnosed with left lambdoid synostosis. Discussion The skull was recovered at the Sima de los Huesos site in Atapuerca (Burgos, S[...]texto impreso
We study the heavy Higgs sector of the MSSM composed of the H+/-, H-0 and A(0) particles in the so-called decoupling limit where m(A0) > > m(z) By integrating out these heavy Higgs particles to one-loop, we compute the effective action for the [...]texto impreso
Since Arrow's main theorem showed the impossibility of a rational procedure in group decision making, many variations in restrictions and objectives have been introduced in order to find out the limits of such a negative result. But so far all t[...]texto impreso
Casas Tuset, Josep María ; Navidad Fernández de la Cruz, Marina ; Castiñeiras García, Pedro ; Liesa Torre Marín, Montserrat ; Aguilar, Carmen ; Carreras, Jordi ; Hofmann, Mandy ; Gärtner, Andreas ; Linnemann, Ulf | Springer-Verlag | 2015-06Geochronological U–Pb (LA-ICP-MS), geochemical and isotopic data from metavolcanic felsic rocks of the Canigó and Cap de Creus massifs in the Eastern Pyrenees provide evidence of an Ediacaran magmatic event lasting 30 Ma in NE Iberia. These data[...]texto impreso
Magnini, Bernardo ; Romagnoli, Simone ; Vallin, Alessandro ; Herrera, Jesús ; Peñas, Anselmo ; Peinado, Víctor ; Verdejo, Felisa ; de Rijke, Maarten | Springer-Verlag | 2004This paper reports on the pilot question answering track that was carried out within the CLEF initiative this year. The track was divided into monolingual and bilingual tasks: monolingual systems were evaluated within the frame of three non-Engl[...]