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Elsevier |
Documentos disponibles de esta editorial (2214)
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Danise, Silvia ; Clémence, Marie-Emilie ; Price, Gregory ; Murphy, Daniel P. ; Gómez Fernández, Juan José ; Twitchett, Richard J. | Elsevier | 2019-06-15In the Early Jurassic (~183?Ma ago) global warming and associated environmental changes coincided with an extinction event in the marine realm (early Toarcian extinction event). Anoxia was previously considered to have been the main cause of ext[...]![]()
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The Permian–Triassic transition, a time of phenomenal palaeoenvironmental and palaeogeographical change, represents the largest episode of mass extinctions known to palaeontologists. This episode is, however, very poorly understood, and a lack o[...]![]()
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We report a summary of the symposium “Stress and Protists: No life without stress”, which was held in September 2015 on the VII European Congress of Protistology in partnership with the International Society of Protistologists (Seville, Spain). [...]![]()
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Hernández, Francisco L. ; Sánchez de los Reyes, Víctor Manuel ; Semenov, Evgeny M. | Elsevier | 2004-03-15Strict singularity and strict co-singularity of inclusions between symmetric sequence spaces are studied. Suitable conditions are provided involving the associated fundamental functions. The special case of Lorentz and Marcinkiewicz spaces is ch[...]![]()
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González Sampériz, P. ; Gil Romera, G. ; García Prieto, Elisa ; Aranbarri, J. ; Moreno, A. ; Morellón, Mario ; Sevilla Callejo, M. ; Leunda, M. ; Santos, L. ; Franco Múgica, F. ; Andrade, A. ; Carrión, J.S. ; Valero Garcés, B. L. | Elsevier | 2020-08-15Few continental palaeoenvironmental sedimentary sequences from Southern Europe are long enough to span the last interglacial period (Marine Isotopic Stage-MIS 5), the last glacial cycle (MIS 4 to 2) and the Holocene. El Cañizar de Villarquemado [...]![]()
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We study the class K2+K4 of homogeneous pseudo-Kähler structures in the strongly degenerate case. The local form and the holonomy of a pseudo-Kähler manifold admitting such a structure are obtained, leading to a possible complex generalization o[...]![]()
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Pontremolli, Carlotta ; Izquierdo Barba, Isabel ; Montalbano, Giorgia ; Vallet Regí, María ; Vitale-Brovarone, Chiara ; Fiorilli, Sonia | Elsevier | 2019-12-14Hypothesis The treatment of bone fractures still represents a challenging clinical issue when complications due to impaired bone remodelling (i.e. osteoporosis) or infections occur. These clinical needs still require a radical improvement of the[...]![]()
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Rivera de Torre, Esperanza ; Palacios Ortega, Juan ; Garb, Jessica E. ; Slotte, J. Peter ; Gavilanes, José G. ; Martínez del Pozo, Álvaro | Elsevier | 2020Actinoporins are a family of pore-forming toxins produced by sea anemones as part of their venomous cocktail. These proteins remain soluble and stably folded in aqueous solution, but when interacting with sphingomyelin-containing lipid membranes[...]![]()
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Gutiérrez Fernández, Juan Carlos ; Francisco Martínez, Patricia de ; Amaro Torres, Francisco ; Díaz, Silvia ; Martín González, Ana María | Elsevier | 2018-10-16In the present review, we discussed the concept of metallothionein (MT) and analyzed the structural and functional diversity of microbial MTs, grouping them into three main groups; bacteria, fungi, and protists. Structural diversity is analyzed [...]![]()
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This paper attempts to determine whether or not nominal exchange rate regimes affect the volatility of bilateral and effective real exchange rates. To that end, we examine the real exchange rate behaviour for a set of OECD and non-OECD countries[...]![]()
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The lipoyl domains of the dihydrolipoyl acyltransferase (E2p, E2o) components of the pyruvate and 2-oxoglutarate dehydrogenase multienzyme complexes are specifically recognised by their cognate 2-oxo acid decarboxylase (E1p, E1o). A prominent su[...]![]()
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Sainz Maza, S. ; Montesinos, F. G. ; Marti, J. ; Arnoso, J. ; Calvo, M. ; Borreguero, A. | Elsevier | 2017Recent volcanism in El Hierro Island is mostly concentrated along three elongated and narrow zones which converge at the center of the island. These zones with extensive volcanism have been identified as rift zones. The presence of similar struc[...]![]()
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Herrero Gil, Andrea ; Egea González, Isabel ; Ruiz, Javier ; Romeo Briones, Ignacio | Elsevier | 2019-02Martian lobate scarps are prominent tectonic structures interpreted to be the topographic expression of large thrust faults generated under compression. Here, we present a structural modeling performed on three large lobate scarps (Ogygis Rupes,[...]![]()
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Castillo Martínez, Elizabeth ; Schönleber, Andreas ; Smaalen, Sander van ; Arévalo López, Ángel M. ; Alario Franco , Miguel Ángel | Elsevier | 2008The strontium chromium oxide [Sr2O2][CrO2]1.85 misfit layer compound has been synthesised at high pressure and high-temperature conditions. Electron diffraction patterns and high-resolution transmission electron microscopy images along [001] sho[...]![]()
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Ancochea Soto, Eumenio ; Huertas, María José ; Hernán Reguera, Francisco ; Brändle, José Luis ; Alonso, Mar | Elsevier | 2015-09The northern alignment of Cape Verde Archipelago contains three small islands in its central sector: Santa Luzia, Branco and Raso on which there is very scarce geological, petrological or geochronological information available. The three islands[...]![]()
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The definition and structure of hyperkähler structure preserving transformations (invariance group) for quaternionic structures have been recently studied and some preliminary results on the Euclidean case discussed. In this work we present the [...]![]()
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We prove that on the bundle of connections of an arbitrary principal bundle ?: P ? M there exists a canonical differential 2--form taking values in the adjoint bundle ;ing: adg:: ad P ? M which defines a generalized symplectic structure and whic[...]![]()
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Rubio Sánchez, Manuel ; Kinnunen, Päivi ; Pareja Flores, Cristobal ; Velázquez Iturbide, Ángel | Elsevier | 2014Automated assessment systems are gaining popularity within computer programming courses. In this paper we perform an empirical evaluation of Mooshak, an online judge that verifies program correctness, in order to determine its usefulness in clas[...]![]()
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The Pajares calcrete in Central Spain, a modern calcrete, consists of an accumulation of powder carbonate around the roots of living trees and bushes which penetrates Miocene deposits by more than 3?m. Calcrete development is mostly vertical and[...]![]()
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Ramos, A. ; Urbieta Quiroga, Ana Irene ; Escalante, G. ; Hidalgo Alcalde, Pedro ; Espinós, J.P. ; Fernández Sánchez, Paloma | Elsevier | 2020-04-15The properties of ZnO based materials for ethanol detection have been studied. Cu doped samples obtained from different precursors have been investigated. ZnO and ZnS have been used as host and Cu and CuO as dopant sources. The sensing measureme[...]![]()
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In [J. Henry, A.M. Ramos, Factorization of second order elliptic boundary value problems by dynamic programming, Nonlinear Analysis. Theory, Methods & Applications 59 (2004) 629–647] we presented a method for factorizing a second-order boundary [...]![]()
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Domínguez-Rodrigo, Manuel ; Díez Martín, Fernando ; Yravedra Sainz de los Terreros, José ; Barba, Rebeca ; Mabulla, Audax ; Baquedano, Enrique ; Uribelarrea del Val, David ; Sánchez-Yustos, Policarpo ; Eren, Metin | Elsevier | 2014-02-16Recent excavations at the SHK Main Site, Olduvai Gorge, Tanzania, have unearthed a dense concentration of stone tools and faunal remains. Here, we describe how the site contributes to the understanding of hominin subsistence strategies and paleo[...]![]()
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Sánchez Moral, Sergio ; Cañaveras, Juan Carlos ; Benavente, David ; Fernández Cortés, Angel ; Cuezva, S. ; Elez, Javier ; Jurado, Valme ; Rogerio Candelera, Miguel Angel ; Saiz Jiménez, Cesareo | Elsevier | 2018-12The Roman Necropolis of Carmona (Sevilla, Spain) has experienced a severe deterioration since the accidental discovery in 1868 and subsequent archaeological excavations starting in 1882. To this deterioration contributed the location in a soft c[...]![]()
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Reales Calderón, José Antonio ; Martínez Solano, Laura ; Martinez Gomariz, Montserrat ; Nombela, César ; Molero, Gloria ; Gil, Concha | Elsevier | 2012-08In previous proteomic studies on the response of murine macrophages against Candida albicans, many differentially expressed proteins involved in processes like inflammation, cytoskeletal rearrangement, stress response and metabolism were identif[...]![]()
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We study the electron dynamics in a two-band ?-doped semiconductor within the envelope-function approximation. Using a simple parametrization of the confining potential arising from the ionized donors in the ?-doping layer, we are able to find e[...]![]()
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We study electron dynamics in a two-band ?-doped semiconductor within the envelope-function approximation. Using a simple parametrization of the confining potential arising from the ionized donors in the ? -doping layer, we are able to find exa[...]![]()
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Day, Simon ; Llanes Estrada, Pilar ; Silver, Eli ; Hoffmann, Gary ; Ward, Steve ; Driscol, Neal | Elsevier | 2015-11The March 13th 1888 collapse of Ritter Island in Papua New Guinea is the largest known sector collapse of an island volcano in historical times. One single event removed most of the island and its western submarine flank, and produced a landslid[...]![]()
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Rodríguez Zurrunero, Alvaro ; Granja Bruña, José Luis ; Carbó, Andrés ; Muñoz Martín, Alfonso ; Gorosabel, José Miguel ; Gómez de la Peña, Laura ; Gómez Ballesteros, Mª Purificación ; Pazos, Antonio ; Catalán Morollón, Manuel ; Espinosa, S. ; Druet Vélez, María ; LLanes Estrada, Mª Pilar ; Ten Brink, Uri | Elsevier | 2019-01The northern margin of Hispaniola records the oblique collision/underthrusting of the Bahamas Carbonate Province with the island-arc. Due to the collision, northern Hispaniola has suffered several natural disasters caused by major earthquakes an[...]![]()
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A Banach space X is subprojective if every infinite-dimensional subspace of X has a subspace which is complemented in X. We prove that separable Nakano sequence spaces l((pn)) are subprojective. Subprojectivity is also characterized in separable[...]![]()
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The sedimentary record of the Late Permian and Early Triassic of the eastern Iberian Ranges shows four major, sudden, or very rapid, vertical changes in fluvial style. The Late Permian sedimentary cycle starts with the Boniches Formation, of all[...]![]()
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We study the initial behavior of the fronts (for interfaces) generated by the solutions of the equation ut=(um)xx+b(u?)x, where m,b,?> 0 are real numbers. We derive a mass comparison principle that allows us to give necessary and sufficient cond[...]![]()
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Sánchez Elordi, Elena ; Morales de los Ríos, Laura ; Vicente Córdoba, Carlos ; Legaz González, María Estrella | Elsevier | 2015-12Sugar cane cultivars resistant to smut produce a pool of glycoproteins after experimental infection, one of them develops arginine activity. This arginase induces cytoagglutination of smut teliospores but impedes germination. Teliospores also se[...]![]()
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Schlagintweit, Felix ; Muñoz Moreno, Alejandro ; Martín Chivelet, Javier ; Rosales, Idoia | Elsevier | 2017-04The new crustacean microcoprolite Sulcusina iberica n. ichnogen., n. ichnosp., is described from the Upper Cretaceous Alarcon Formation (?uppermost Cenomanian to ?lower Coniacian) of the Southern Iberian range. The new ichnogenus is characterize[...]![]()
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Vera-Villalobos, Hernán ; Lunario-Delgado, Lizzeth ; Pérez-Retamal, Diana ; Román, Domingo ; Leiva, Juan Carlos ; Zamorano, Pedro ; Mercado-Seguel, Ana ; Gálvez, Anita S ; Benito Jiménez, Cesar ; Wulff-Zottele, Cristián | Elsevier | 2020-06-10Trivalent aluminum ions (Al3+) in acidic soils are a major constraint for crop productivity inhibiting root elongation and promoting cell death. Al3+-toxicity has adverse biochemical and physiological effects on plant root growth. Sulfur is an e[...]![]()
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Barnes, Stephen J. ; Staude, Sebastian ; Le Vaillant, Margaux ; Piña García, Rubén ; Lightfoot, Peter C. | Elsevier | 2018-10Much of the value of magmatic Ni-Cu-PGE sulfide orebodies is contained within massive or semi-massive ores that show a wide variety of textural relationships to included or adjacent silicate rocks. We identify five mutually gradational textural [...]![]()
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Vindel Catena, Elena ; Navarro Ciurana, Didac ; Cardellach, Esteve ; Griera, Albert ; Gómez Gras, David ; Corbella, Mercè | Elsevier | 2017-12The Zn-(Fe-Pb) deposits of the Riópar area (Prebetic Zone, SE Spain) are hosted by dolostones that replace Berriasian to Valanginian (Upper Jurassic-Lower Cretaceous) limestones. Mineralization consists of hypogene sphalerite, marcasite and gale[...]![]()
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This paper analyzes the concrete experience of a communitarian economy (Sarayaku) from which empirical evidence may be drawn to enhance debates around development, post-development, and sumak kawsay. Some forms of land exploitation and social or[...]![]()
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Introduction. À l’heure actuelle, nombreuses applications mobiles de protection solaire sont disponibles. Cependant, on sait peu de choses sur leurs caractéristiques. Nous avons voulu décrire les applications mobiles de protection solaire dispon[...]![]()
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Recently, polarons in the Peyrard-Bishop-Holstein model under DC electric fields were established to perform Bloch oscillations, provided the charge-lattice coupling is not large. In this work, we study this model when the charge is subjected to[...]![]()
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Almendro Vedia, Víctor G. ; García, Carolina ; Ahijado Guzmán, Rubén ; de la Fuente Herreruela, Diego ; Muñoz Úbeda, Mónica ; Natale, Paolo ; Viñas, Montserrat H. ; Albuquerque, Rodrigo Queiroz ; Guerrero Martínez, Andrés ; Monroy, Francisco ; Lillo, M. Pilar ; López-Montero, Iván | Elsevier | 2018Background: The fluorescent dye 10-N-nonyl acridine orange (NAO) is widely used as a mitochondrial marker. NAO was reported to have cytotoxic effects in cultured eukaryotic cells when incubated at high concentrations. Although the biochemical re[...]![]()
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The authors give an approach to the classification of 7-dimensional nilpotent algebras. They illustrate the use of the invariant of nilpotent Lie algebras, called characteristic sequence, and defined by the maximum of the ordered sequences of th[...]![]()
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The scheme of the Lie algebras of dimension n is reducible for n?2 and the number of its components is bounded asymptotically by exp(n/4) . The same problem is studied by the authors for the subvariety N n of the nilpotent Lie algebras of di[...]![]()
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We consider in this Note distributed systems governed by parabolic evolution equations which can blow up in finite time and which are controlled by initial conditions. We study here the following question: can one choose the initial condition in[...]![]()
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Let Nn be the variety of nilpotent Lie algebra laws of a given complex vector space Cn. M. Vergne showed ["Variété des algèbres de Lie nilpotentes'', Thèse de 3ème cycle, Spéc. Math., Paris, 1966; BullSig(110) 1967:299; Bull. Soc. Math. France 9[...]![]()
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We study the real spectrum of complete local rings with real closed residue field. We show that for every constructible subset C the following hold: (1) the closure C of C is constructible, and (2) C has a finite number of connected components a[...]![]()
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The structure of the liquid surface is shown to lead to the appearance of new surface waves which are studied both in the high-frequency elastic domain and in the low-frequency hydrodynamic domain. The experimental observation of these surface w[...]