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Documentos disponibles de esta editorial (2214)
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In recent years, it has been discovered that the endemic earthworm Carpetania elisae (formerly Hormogaster elisae) consists of a complex of at least six cryptic species. Studying the relationships between these new cryptic species and other soil[...]![]()
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Annual and seasonal water variability is predicted to intensify due to climate change. River basins lacking institutional capacity, such as treaties, to deal with environmental change may experience political tensions. Using the 1948–2008 countr[...]![]()
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Several sociodemographic phenomena have changed family organization in Spain over the last few decades, where less structured forms than the traditional nuclear family have gained in importance. In view of the importance of children’s and adoles[...]![]()
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The role of opinion leadership to develop positive loyalty effects in the arts services has received little attention. The objectives of this paper are: first, to test the influence of opinion leadership between service attributes and loyalty; a[...]![]()
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Dolomite in caves: Recent dolomite formation in oxic, non-sulfate environments. Castañar Cave, Spain
Dolomite is a common mineral in the rock record but rare in recent superficial environments. Where it does occur, it is related to anoxic, sulfate-rich environments and microbial activity. The occurrence of some dolomite deposits in caves, howev[...]![]()
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A numerical method to detect objects buried in a medium by surface thermal measurements is presented. We propose a new approach combining the use of topological derivatives and Laplace transforms. The original optimization problem with time-depe[...]![]()
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Valarezo Unda, Ángel ; Pérez-Amaral, Teodosio ; Garín Muñoz, Teresa ; Herguera García, Íñigo ; López Zorzano, Rafael Alberto | Elsevier | 2018This paper explores the determinants of the individual's decision to perform cross-border ecommerce (CBeC). The European Union (EU) is especially interested in the promotion of CBeC because it is an important tool in its strategy to achieve the [...]![]()
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Koser, Claudio U. ; Javid, Babak ; Liddell, Kathleen ; Ellington, Matthew J. ; Feuerriegel, Silke ; Niemann, Stefan ; Brown, Nicholas M. ; Burman, William J. ; Abubakar, Ibrahim ; Ismail, Nazir A. ; Moore, David ; Peacock, Sharon J. ; Torok, M. Estee | Elsevier | 2019-02-06T14:59:06Z![]()
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Zürcher, K. ; Ballif, M. ; Fenner, L. ; Borrell, S. ; Keller, P.M. ; Gnokoro, J. ; Marcy, O. ; Yotebieng, M. ; Diero, L. ; Carter, E.J. ; Rockwood, N. ; Wilkinson, R.J. ; Cox, H. ; Ezati, N. ; Abimiku, A.G. ; Collantes, J. ; Avihingsanon, A. ; Kawkitinarong, K. ; Reinhard, M. ; Hömke, R. ; Huebner, R. ; Gagneux, S. ; Böttger, E.C. ; Egger, M. ; Chammartin, F. ; Boettger, E.C. ; Keller, P. ; Abimiku, A. ; Wenzi, L. ; Tabala, M. ; Warren, R. ; Streicher, E. ; Wilkinson, R.J. ; Carter, E.J. ; Zamudio, C. ; Sohn, A. ; Petersen, T. ; Kasipong, N. ; N'Guessan, K. ; International epidemiology Databases to Evaluate AIDS | Elsevier | 2019-07-04T16:59:29ZBackground: Drug resistance is a challenge for the global control of tuberculosis. We examined mortality in patients with tuberculosis from high-burden countries, according to concordance or discordance of results from drug susceptibility testin[...]![]()
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Zürcher, K. ; Ballif, M. ; Fenner, L. ; Borrell, S. ; Keller, P.M. ; Gnokoro, J. ; Marcy, O. ; Yotebieng, M. ; Diero, L. ; Carter, E.J. ; Rockwood, N. ; Wilkinson, R.J. ; Cox, H. ; Ezati, N. ; Abimiku, A.G. ; Collantes, J. ; Avihingsanon, A. ; Kawkitinarong, K. ; Reinhard, M. ; Hömke, R. ; Huebner, R. ; Gagneux, S. ; Böttger, E.C. ; Egger, M. ; Chammartin, F. ; Boettger, E.C. ; Keller, P. ; Abimiku, A. ; Wenzi, L. ; Tabala, M. ; Warren, R. ; Streicher, E. ; Wilkinson, R.J. ; Carter, E.J. ; Zamudio, C. ; Sohn, A. ; Petersen, T. ; Kasipong, N. ; N'Guessan, K. ; International epidemiology Databases to Evaluate AIDS (IeDEA) consortium | Elsevier | 2019-12-06T20:57:51ZBackground: Drug resistance is a challenge for the global control of tuberculosis. We examined mortality in patients with tuberculosis from high-burden countries, according to concordance or discordance of results from drug susceptibility testin[...]![]()
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Bristow, Claire C. ; Vargas Rivera, Silver Keith ; Ramos Cordova, Lourdes B. ; Qquellon Palacios, Luz Jazmín ; Konda, Kelika A. ; Klausner, Jeffrey D. | Elsevier | 2019-03-05T15:25:03ZWe evaluated the Standard Q HIV/Syphilis Combo Test (SD Biosensor, South Korea), a dual rapid test using stored sera (N=400) in a laboratory setting in Lima, Peru. The sensitivity and specificity for HIV antibody detection was 100.0% (95% CI: 98[...]![]()
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Bristow, C.C. ; Rivera, S.K.V. ; Ramos Cordova, L.B. ; Palacios, L.J.Q. ; Konda, K.A. ; Klausner, J.D. | Elsevier | 2019-12-06T21:02:59ZWe evaluated the Standard Q HIV/Syphilis Combo Test (SD Biosensor, South Korea), a dual rapid test using stored sera (N = 400) in a laboratory setting in Lima, Peru. The sensitivity and specificity for HIV antibody detection was 100.0% (95% CI: [...]![]()
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We work with spaces (A0;A1)?;q;A which are logarithmic perturbations of the real interpolation spaces. We determine the dual of (A0;A1)?;q;A when0![]()
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Caves are natural laboratories to investigate evolutionary processes in the ocean. In contrast to the many described lineages of cave exclusive crustaceans and annelids, very little is known about cave scalidophorans. We here describe two new sp[...]![]()
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Quantifying the action of antibiotics on biofilms is essential to devise therapies against chronic infections. Biofilms are bacterial communities attached to moist surfaces, sheltered from external aggressions by a polymeric matrix. Coupling a d[...]![]()
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Moratti, Stephan ; Mendez Bertolo, Constantino ; Pozo Guerrero, Francisco del ; Strange, Bryan | Elsevier | 2014To perceive a coherent environment, incomplete or overlapping visual forms must be integrated into meaningful coherent percepts, a process referred to as "Gestalt" formation or perceptual completion. Increasing evidence suggests that this proces[...]![]()
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This paper is part of a program that aims to understand the connection between the emergence of chaotic behaviour in dynamical systems in relation with the multi-valuedness of the solutions as functions of complex time tau. In this work we consi[...]![]()
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We analyze the dynamics of a reaction–diffusion equation with homogeneous Neumann boundary conditions in a dumbbell domain. We provide an appropriate functional setting to treat this problem and, as a first step, we show in this paper the contin[...]![]()
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In this work we continue the analysis of the asymptotic dynamics of reaction–diffusion problems in a dumbbell domain started in [J.M. Arrieta, A.N. Carvalho, G. Lozada-Cruz, Dynamics in dumbbell domains I. Continuity of the set of equilibria, J.[...]![]()
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In this paper we conclude the analysis started in [3] and continued in [4] con- cerning the behavior of the asymptotic dynamics of a dissipative reactions di_usion equation in a dumbbell domain as the channel shrinks to a line segment. In [3], w[...]![]()
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Quintana-Cobo, Isabel ; Moreira-Turcq, Patricia ; Cordeiro, Renato C. ; Aniceto, Keila ; Crave, Alain ; Fraizy, Pascal ; Moreira, Luciane S. ; de Aguiar Duarte Contrera, Julia Maria ; Turcq, Bruno | Elsevier | 2018-11-30T23:41:32ZTo better understand the impact of channel migration processes and climate change on the depositional dynamics of floodplain lakes of the upper Amazon Basin during the late Holocene, we collected three sediment cores from floodplain lakes of the[...]![]()
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In this Note we study the asymptotic behavior of reaction diffusion equations with nonlinear boundary conditions. We obtain balance conditions between the reaction term and the nonlinear flux term which imply boundedness of solutions or blow-up [...]![]()
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We use upper semifinite hyperspaces of compacta to describe "-connectedness and to compute homology from finite approximations. We find another connection between "- connectedness and the so called Shape Theory. We construct a geodesically compl[...]![]()
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Matesanz Sancho, María Concepción ; Feito Castellano, María José ; Oñaderra Sánchez, Mercedes ; Ramirez Santillán, Cecilia ; Casa, Carmen da ; Arcos Navarrete, Daniel ; Vallet Regí, María ; Rojo, José María ; Portolés Pérez, María Teresa | Elsevier | 2014-02-15Hypothesis: Synthetic hydroxyapatite (HA) and Si substituted hydroxyapatite (SiHA) are calcium phosphate ceramics currently used in the field of dentistry and orthopaedic surgery. The preparation of both biomaterials as polycrystalline solid pie[...]![]()
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The rocks at Tenzuela represent the only known outcrop of HP metabasites in the internal sectors of the Iberian Belt, in the vast Central Iberian Zone (CIZ). These rocks appear as lenses of meta-tholeiites of continental affinity intruded within[...]![]()
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Acosta, Juan ; Ancochea Soto, Eumenio ; Canals, Miquel ; Huertas Coronel, María José ; Uchupi, E. | Elsevier | 2004-06-30The recovery of calcareous breccia and other carbonate-cemented rocks from Mont dels Oliva in the Balearic Promontory indicates that both this seamount and the adjacent Mont Ausias Marc, east of Ibiza and Formentera islands, are of continental o[...]![]()
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Piñero, Pedro ; Agustí, Jordi ; Oms Llobet, Oriol ; Montoya, Plini ; Mansino, Samuel ; Ruiz-Sánchez, Francisco ; Alba, David M. ; Alberdi, María Teresa ; Blain, Hugues-Alexandre ; Laplana, César ; Van der Made, Jan ; Mazo, Ana ; Morales Romero, Jorge ; Murelaga, Xabier ; Pérez-García, Adán ; Pérez-Valera, Fernando ; Pérez-Valera, Juan Alberto ; Sevilla, Paloma ; Soria, Jesús M. ; Romero, Gregorio ; Fierro, Ignacio | Elsevier | 2017-08-01In this paper, we synthesize sedimentological, magnetostratigraphic and paleontological data from the continental vertebrate site of Puerto de la Cadena (Murcia, SE Spain), in order to clarify its age. The study site is located on the northern e[...]![]()
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This paper reports a new and well dated record of the Etruscan shrew (Suncus etruscus), which is the smallest extant terrestrial mammal, and provides a comprehensive review of the fossil record of this species. Three remains were found in the sm[...]![]()
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Ordoñez García, Carlos ; Garrido Pérez, José Manuel ; García Herrera, Ricardo | Elsevier | 2020-12-10This paper analyses the impact of the control measures during the COVID-19 lockdown in Europe (15 March–30 April 2020) on 1-h daily maximum nitrogen dioxide (NO_(2)) and maximum daily 8-h running average ozone (MDA8 O_(3)) observations obtained [...]![]()
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Martín Chivelet, Javier ; Palma, Ricardo Manuel ; López Gómez, José ; Kietzmann, Diego A. | Elsevier | 2011Penecontemporaneous decimetre-scale soft-sediment deformation structures are reported from the basal part of the Upper Jurassic–Lower Cretaceous Vaca Muerta Formation, in the Malargüe–Las Leñas area of the back-arc Neuquén Basin (Mendoza Provinc[...]![]()
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Baldivieso Freitas, Paola ; Blanco Moreno, José M. ; Gutiérrez López, Mónica ; Peigné, Joséphine ; Pérez Ferrer, Alejandro ; Trigo Aza, María Dolores ; Sans, Francesc Xavier | Elsevier | 2018Earthworms are one of the most important soil macrofaunal groups, and they play a major role in agricultural ecosystems. Agricultural practices, such as reduced tillage, the use of green manures and organic fertilization, can be beneficial for e[...]![]()
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Sanchez Hernández, Ruth ; Padilla, Isabel ; López Andrés, Sol ; López Delgado, Aurora | Elsevier | 2017-09The feasibility of developing an eco-friendly bench-scale zeolitization process of NaP1 from an Alcontaining waste and under recycling of effluents was evaluated.Prior lab-scale tests were performed to optimize the synthesis conditions. The mixt[...]![]()
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The economic crisis forced politicians to make public finances sustainable. The education sector was one of the most adversely affected by control of public expenditure. This paper analyzes the drivers causing productivity changes of especially [...]![]()
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López Guijarro, Rafael ; Armendáriz, Maider ; Quesada Ochoa, Cecilio ; Fernández Suárez, Javier ; Brendan Murphy, J. ; Pin, Christian ; Bellido Mulas, Félix | Elsevier | 2008Sm–Nd isotopic analyses of Palaeozoic sedimentary and igneous rocks in the southwest Iberian Massif (western end of the European Variscan Belt) are presented in order to unravel its complex poly-orogenic evolution during the closure of the Rheic[...]![]()
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Vallet Regí, María ; Salinas Sánchez, Antonio J. ; Baeza, Alejandro ; Manzano García, Miguel | Elsevier | 2018-05-15![]()
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El Perú, con más de 31 millones de habitantes, posee oficialmente 142 universidades (51 estatales y 91 privadas) con 25 facultades de medicina (13 estatales y 12 privadas) y con 33 facultades adicionales aún no autorizadas. Anualmente se registr[...]![]()
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Tío, Laura ; Orellana, Cristóbal ; Pérez García, Selene ; Piqueras, Laura ; Escudero, Paula ; Juarranz Moratilla, Yasmina ; García Giralt, Natalia ; Montañés, Francisco ; Farran, Aina ; Benito, Pere ; Pérez Gomáriz, Rosa María ; Sanz, Maria Jesús | Elsevier | 2017-02Objetivo: Evaluar mediante ecografía el efecto del condroitín sulfato (CS) en la sinovitis de pacientes conartrosis (OA) de rodilla, y colaborar en el conocimiento de los mecanismos bioquímicos involucrados enla inflamación sinovial.Métodos: Est[...]![]()
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Martín García, Rebeca ; Alonso-Zarza, Ana María ; Frisia, Silvia ; Rodríguez Berriguete, Álvaro ; Drysdale, Russell ; Hellstromf, John | Elsevier | 2019-04-01Aragonite speleothems are increasingly being used as high-resolution climate proxies; however, aragonite is unstable and susceptible to diagenetic transformation into calcite leading to mineralogical, textural and geochemical alterations that ha[...]![]()
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Varas Muriel, María José ; Pérez-Monserrat, Elena Mercedes ; Vázquez Calvo, María del Carmen ; Fort González, Rafael | Elsevier | 2015Preliminary studies are an imperative when determining the impact of conservation treatments on historical materials. The Romanesque apse on a church at Talamanca de Jarama, Madrid, Spain, whose dolostone was severely decayed by rainwater and sa[...]![]()
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Pérez-Monserrat, Elena Mercedes ; Agua Martínez, Fernando ; Fort González, Rafael ; Álvarez de Buergo, Mónica ; Conde Moreno, Juan Félix ; García Heras, Manuel | Elsevier | 2017The appearance and main decay forms in the fair-faced brick façades on the University Campus of Madrid's Faculty of Medicine were taken as a starting point to analyse certain building's construction characteristics and the clay and technology us[...]![]()
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Carracedo Rodríguez, Juan Gonzalo ; Martín Gil, Ana ; Fonseca, Begoña ; Pintor, Jesús | Elsevier | 2016-08Objective: To evaluate the differences between goblet cell density (GCD) and symptomatology after one month of orthokeratology lens wear. Methods: A pilot, short-term study was conducted. Twenty-two subjects (29.7. ±. 7.0 years old) participated[...]![]()
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Arriola Villalobos, Pedro ; Almendral Gómez, Jaime ; Garzón Jiménez, Nuria ; Ruiz-Medrano, Jorge ; Fernández Pérez, Carlos ; Martínez de la Casa, Jose Maria ; Díaz Valle, David | Elsevier | 2016-10-25Purpose: to determine whether pupil dilation affects biometric measurements and intraocular lens (IOL) power calculation made using the new swept-source optical coherence tomography-based optical biometer (IOLMaster 700©; Carl Zeiss Meditec, Jen[...]![]()
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Victoria Villar, María ; Campos, Gemma ; Gutiérrez Nebot, Luis ; Arroyo Rey, Xabier | Elsevier | 2019-12-01The FEBEX (Full-scale Engineered Barrier Experiment) in situ test simulated the engineered barrier of a nuclear waste repository and was in operation for 18?years under natural conditions, with a heater simulating the waste container. The water [...]![]()
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Beltrán González, Freddys ; Lorenzo Esteban, Vicente ; Acosta, Juan ; Orden Hernández, María Ulagares de la ; Martínez Urreaga, Joaquín | Elsevier | 2017-05-17The aim of this work is to study the effects of different simulated mechanical recycling processes on the structure and properties of PLA. A commercial grade of PLA was melt compounded and compression molded, then subjected to two different recy[...]![]()
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Ambulay, Johnny P. ; Rojas, Percy A. ; Timoteo, Olga S. ; Barreto, Teresa ; Colarossi, Ana | Elsevier | 2020-07-14T00:00:54ZSacha Inchi (Plukenetia huayllabambana), an oleoleguminosae with a high content ?-3, could help normalize alterations of obesity. We evaluated the effect of emulsion of Sacha Inchi (SI) oil on the lipid profile, oxidative stress and inflammation[...]![]()
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We start from the euclidean QCD action for gluons and massless quarks with N_c colours at finite baryon chemical potential ps and zero temperature. For ?_B of the order of external momenta o(p) we derive an euclidean effective real chiral lagran[...]![]()
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Díez Gutiérrez, Enrique Javier ; Sánchez, Angel ; Domínguez-Adame Acosta, Francisco | Elsevier | 1996-05-27We introduce a model of a nonlinear double-barrier structure to describe in a simple way the effects of electron-electron scattering while remaining analytically tractable. The model is based on a generalized effective-mass equation where a nonl[...]![]()
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Rubinstein, Adolfo ; Miranda, J. Jaime ; Beratarrechea, Andrea ; Diez-Canseco, Francisco ; Kanter, Rebecca ; Gutierrez, Laura ; Bernabé-Ortiz, Antonio ; Irazola, Vilma ; Fernandez, Ariel ; Letona, Paola ; Martinez, Homero ; Ramirez-Zea, Manuel | Elsevier | 2019-02-06T14:57:41ZBACKGROUND: Poor diet and physical inactivity strongly affect the growing epidemic of cardiovascular disease worldwide. Mobile phone-based health interventions (mHealth) have been shown to help promote weight loss and increase physical activity[...]