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Documentos disponibles de esta editorial (2214)
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The authors study the existence of weak solutions for the following system: ut???(u)?F(u,v), vt???(v)?G(u,v) in (0,T)×?, ?(u)=?(v)=0 on (0,T)×??, u(0,x)=u0(x), v(0,x)=v0(x) in the region ???Rn with smooth boundary ??. The functions ?,?:R?R are a[...]![]()
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Let OMEGA be a bounded smooth domain of R(n). We prove existence of global solutions, i. e. solutions defined for all t is-an-element-of R, for dissipative wave equations of the form: u''-DELTAu+\u'\p-1 u'=0 in (- infinity, infinity) x OMEGA wit[...]![]()
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The main goal of this paper is to study the asymptotic expansion near the boundary of the large solutions of the equation -Delta u + lambda u(m) = f in Omega, where lambda > 0, m > 1, f is an element of c(Omega), f > = 0, and Omega is an open [...]![]()
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Examinamos la capacidad predictiva, las propiedades de consistencia de las expectativas de inflación y sus posibles determinantes usando una encuesta a un panel de expertos y empresarios realizada en España por PwC. Al analizar la tasa de inflac[...]![]()
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García Villaluenga, Juan Pedro ; Somovilla, Pilar ; Barragán García, Vicenta María ; Izquierdo Gil, María Amparo | Elsevier | 2016Liquid uptake and streaming potential have been determined in aqueous sodium chloride solutions for five different commercial sulfonated polymer cation-exchange membranes. The selected membranes have distinct morphologies and electrochemical pro[...]![]()
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Gomez-Puerta, L.A. ; Garcia, H.H. ; Gonzalez, A.E. ; Cysticercosis Working Group in Peru | Elsevier | 2019-04-25T15:46:34ZBeetles are intermediate hosts for human and animal parasites, and several beetle species have been shown to carry Taenia eggs. An experimental porcine cysticercosis infection model was developed using beetles (Ammophorus rubripes) infected with[...]![]()
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We report the results of a study that examines university students’ perceptions about the public image of auditors through their stereotypes and their changes in attitudes after an extra-curricular activity with professionals, sponsored by a wel[...]![]()
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Zúñiga-Upegui, P. ; Arnaiz-Schmitz, C. ; Herrero-Jáuregui, Cristina ; Smart, Simon Mark ; López-Santiago, C.A. ; Schmitz García, María Fe | Elsevier | 2019-08-10This paper describes the relationship between the landscape and the socio-economic and political characteristics of a highly biodiverse Andean region of Colombia, which is now recovering from the socio-ecological impact of protracted armed confl[...]![]()
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López de la Lama, R. ; Valdés-Velasquez, A. ; Huicho, L. ; Morales, E. ; Rivera-Ch, M. | Elsevier | 2018-12-01T00:04:13ZSocial capital has been a key factor for co-management initiatives' success in small-scale fisheries. Nonetheless, this is a complex concept, which can be operationalized in different ways and has no specific standardized measures. This research[...]![]()
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As higher education institutions (HEIs) across the world strive to become increasingly international, English-medium instruction (EMI) is swiftly becoming mainstream in contexts where English has traditionally held a foreign language status. Thi[...]![]()
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Exploring the nature, antecedents and consequences of symbolic corporate environmental certification
Martín de Castro, Gregorio ; Amores Salvado, Javier ; Navas López, José Emilio ; Balarezo Nuñez, Remy Michael | Elsevier | 2017Voluntary environmental certifications can be considered as firms’ strategic responses to institutional market and non-market pressures to reduce the impact of business activities on natural environment, and also as a means to legitimate the fir[...]![]()
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This paper analyzes the role of a variety of shocks as determinants of Spanish macroeconomic fluctuations before the international financial and economic crisis (1970–2008). To do this we estimate a small open economy stochastic model using Kalm[...]![]()
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The authors consider blow-up for the equation (1) ut=?u+up (x?RN, t> 0), where p> 1 and N> 1. For N> 11and (2) p> (N?2(N?1)1/2)/(N?4?2(N?1)1/2)=p1(N) there exist some radial positive solutions that blow up at x=0, t=T![]()
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We examine the relationship between the role of trade finance availability and the export intensity of foreign subsidiaries of multinational enterprises (MNEs). In developing our hypotheses, we draw upon insights derived from “new” internalisati[...]![]()
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Cordova Lopez, Ana M. ; Sarmento, Renato Almeida ; de Souza Saraiva, Althieris ; Pereira, Renata Ramos ; Soares, Amadeu M. V. M. ; Pestana, Joao L. T. | Elsevier | 2019-07-04T16:59:34ZThe demand of glyphosate-based herbicides including Roundup(R) is rising in the tropics due to increase occurence of glyphosate-resistant weeds that require higher herbicide application rates but also because of their use associated with geneti[...]![]()
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Cordova Lopez, Ana M. ; Sarmento, Renato Almeida ; de Souza Saraiva, Althieris ; Pereira, Renata Ramos ; Soares, Amadeu M. V. M. ; Pestana, Joao L. T. | Elsevier | 2019-12-06T20:57:51ZThe demand of glyphosate-based herbicides including Roundup(R) is rising in the tropics due to increase occurence of glyphosate-resistant weeds that require higher herbicide application rates but also because of their use associated with geneti[...]![]()
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Reche, Pedro A ; Arrebola, R ; Santi, D V ; González-Pacanowska, D. ; Ruiz Pérez, Luis Miguel | Elsevier | 1995We have cloned and expressed in Escherichia coli a 702-base pair gene coding for the dihydrofolate reductase (DHFR) domain of the bifunctional dihydrofolate reductase-thymidylate synthase (DHFR-TS) from Trypanosoma cruzi. The DHFR domain was pur[...]![]()
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Loyola, Steev ; Gutierrez, Luz-R. ; Horna, Gertrudis ; Petersen, Kyle ; Agapito, Juan ; Osada, Jorge ; Rios, Paul ; Lescano, Andres-G. ; Tamariz, Jesus | Elsevier | 2019-02-06T14:45:37ZBACKGROUND: Health care workers (HCWs) use their mobile phones during working hours or medical care. There is evidence that the instruments are colonized with pathogenic microorganisms. Here, we describe levels of Enterobacteriaceae contaminati[...]![]()
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Rodriguez Rivera, J. A. ; Rodriguez Lay, R. ; Zegarra Montes, L. ; Benzaghou, F. ; Gaillac, B. ; Azzouzi, A. R. ; Reis, L. O. ; Palma, P. | Elsevier | 2019-04-24T18:23:49ZObjetivos: Explorar la proporción de pacientes con cáncer de próstata localizado (CaP) de mayor riesgo que se convertiría en una biopsia negativa con seguridad 12 meses después de la terapia focal no térmica con terapia fotodinámica dirigida vas[...]![]()
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Díez Fernández, Rubén ; Martín Parra, Luis Miguel ; Rubio Pascual, Francisco J | Elsevier | 2017-04-22This contribution provides a case example on the generation of large-scale recumbent folds in syn-orogenic granitoids. We analyze the progressive reworking of extension-related structures into later ones after a period of crustal thickening. The[...]![]()
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A simple model of chemical kinetics with two concentrations u and v can be formulated as a system of two parabolic variational inequalities with reaction rates v(p) and u(q) for te diffusion processes of u and v, respectively. It is shown that i[...]![]()
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Consider the initial-boundary value problem for ut=?u-?u(q) with ?> 0, 0![]()
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We establish abstract extrapolation results for entropy numbers of operators in Banach spaces. The results apply to extrapolation in the source spaces and also in the target spaces. As an illustration of the abstract results, applications to lim[...]![]()
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We show the existence of two special equilibria, the extremal ones, for a wide class of reaction–diffusion equations in bounded domains with several boundary conditions, including non-linear ones. They give bounds for the asymptotic dynamics and[...]![]()
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To evaluate the impact of model inaccuracies over the network’s output, after the evidence propagation, in a Gaussian Bayesian network, a sensitivity measure is introduced. This sensitivity measure is the Kullback–Leibler divergence and yields d[...]![]()
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Dopico García, Mª Sonia ; Ares Pernas, Ana Isabel ; Lasagabáster Latorre, Aurora ; García Fonte, Xoan Xosé ; Arboleda Clemente, Laura ; Abad López, María José | Elsevier | 2014-02-14The role played by alkyl gallate compatibilizers to enhance the conductivity of extruded polyaniline (PANI)–polyethylene-co-vinyl-acetate (EVA) composites was investigated. PANI doped with dodecylbenzensulfonic acid (DBSA) with 2 S cm?1 conducti[...]![]()
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Morales Cámera, Matías M. ; Dahlquist, Juan Andrés ; Stipp Basei, Miguel Angelo ; Galindo Francisco, Mª del Carmen ; Campos Neto, Mario da Costa ; Facetti, Nicolás | Elsevier | 2017-04The petrogenetic nature of A-type granites is a controversial problem. The Vinquis batholith in the Sierras Pampeanas of Argentina contains unusual F-rich and strongly peraluminous A-type monzogranites. A new LA-MC-ICP-MS U–Pb zircon crystalliza[...]![]()
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Taeño González, María ; Maestre Varea, David ; Cremades Rodríguez, Ana Isabel | Elsevier | 2020-06-25Complex patterning of surfaces commonly requires a significant effort in terms of time, cost, and advanced post-fabrication treatments design, which could be overcome by self-organization mechanisms avoiding damage to the surface materials and e[...]![]()
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Martínez-Vázquez, F.J. ; Cabañas Criado, Maria Victoria ; Paris, J.L. ; Lozano, D. ; Vallet Regí, María | Elsevier | 2015Porous 3-D scaffolds consisting of gelatine and Si-doped hydroxyapatite were fabricated at room temperature by rapid prototyping. Microscopic characterization revealed a highly homogeneous structure, showing the pre-designed porosity (macroporos[...]![]()
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Veloso, Fernanda M.L. ; Liesa, Carlos ; Soria, Ana R. ; Meléndez Hevia, Nieves ; Frykman, Peter | Elsevier | 2016-08The tsunami deposit (up to 3 m thick) of the Cretaceous Camarillas Formation in the Galve sub-basin (eastern Spain) is characterized by a large lateral extent (35 km(2)) and facies uniformity, consisting in fine to coarse subarkosic-arkosic sand[...]![]()
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Jurado, Dolores ; Alarcon, Renato D. ; Martinez Ortega, Jose M. ; Mendieta Marichal, Yaiza ; Gutierrez Rojas, Luis ; Gurpegui, Manuel | Elsevier | 2019-01-25T16:59:38ZSe revisan sistemáticamente los factores asociados a la presencia de malestar psicológico o trastornos mentales comunes en poblaciones migrantes. Se revisaron los artículos publicados entre enero de 2000 y diciembre de 2014, de los que se selecc[...]![]()
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García Arias, M.B. ; Zuluaga Arias, Pilar ; Arrabal Terán, M. C. ; Arizcun Pineda, J. | Elsevier | 2007-04Introduction: Very low birth weight (VLBW) infants, with a birth weight below 1500 g and a structurally immature lung, are at high risk for developing bronchopulmonary dysplasia. This risk is even higher if respiratory distress syndrome is prese[...]![]()
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En este trabajo se analiza la influencia de la edad materna, paridad, intervalo intergenési-co, estacionalidad del parto y el ambiente rural/urbano, definido en función del tamaño demográ-fico del lugar de residencia de la madre, sobre las frecu[...]![]()
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García Arias, M.B. ; Zuluaga Arias, Pilar ; Arrabal Terán, M. C. ; Arizcun Pineda, J. | Elsevier | 2005-08Introducción: La expectativa de vivir de los recién nacidos de muy bajo peso (RNMBP) ha mejorado en los últimos años. Cuando estos pacientes presentan, además, enfermedad de membrana hialina (EMH), es difícil conocer con seguridad cuáles son los[...]![]()
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Moreno, Eliana ; Muñoz-Navarro, Roger ; Medrano, Leonardo Adrián ; González-Blanch, César ; Ruiz-Rodríguez, Paloma ; Limonero, Joaquín T. ; Moretti, Luciana Sofía ; Cano Vindel, Antonio ; Moriana, Juan A. | Elsevier | 2019Background: The Generalized Anxiety Disorder 7-item scale (GAD-7) is commonly used by clinicians and researchers to screen for anxiety disorders and to monitor anxiety symptoms in primary care. However, findings regarding its factor structure ar[...]![]()
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We present a method to factorize a second-order boundary value problem in a cylindrical domain in a system of uncoupled first-order initial value problems, together with a nonlinear Riccati-type equation for functional operators. This uncoupling[...]![]()
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Diaz-Garces, Flavia-A. ; Vargas-Matos, Ivan ; Bernabé-Ortiz, Antonio ; Diez-Canseco, Francisco ; Trujillo, Antonio-J. ; Miranda, J. Jaime | Elsevier | 2019-02-06T14:45:12ZCommunity Kitchens (CKs) are one of the main food providers to low-income families in Peru and may encourage healthier diets. We aimed to determine the prevalence of fruit and vegetable consumption and associated sociodemographic and behavioral [...]![]()
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The authors consider semistable sheaves (in the sense of Mumford-Takemoto) of rank 2 on P3. By studying sections, they are able to determine all Chern classes c1,c2,c3 for which such sheaves exist. As an application they describe a stratificatio[...]![]()
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Diez-Martín, Fernando ; Wynn, T. ; Sánchez Yustos, Policarpo ; Duque, J. ; Fraile, Cristina ; de Francisco, S. ; Uribelarrea del Val, David ; Mabulla, Audax ; Baquedano, Enrique ; Domínguez-Rodrigo, Manuel | Elsevier | 2019-08-20The discovery in FLK West lowermost level 6 (Olduvai Gorge, Tanzania) of a massive and symmetrical handaxe, at odds both with the other LCT specimens so far unearthed from this site and with the technological traits commonly reported for the ear[...]![]()
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Bayer, Angela M. ; Cabrera, Lilia Z. ; Gilman, Robert H. ; Hindin, Michelle J. ; Tsui, Amy O. | Elsevier | 2020-06-10T18:11:36ZWe analyzed the association between sub-scales developed with adolescents and the outcomes of precoital behaviors and vaginal sex in Lima, Peru. Adolescent participants in key informant sessions operationalized concepts identified during qualita[...]![]()
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Cabañas Criado, Victoria ; Lozano Borregón, Daniel ; Torres-Pardo, A. ; Sobrino, C. ; González-Calvet, J. ; Arcos Navarrete, Daniel ; Vallet Regí, María | Elsevier | 2018-12-01Aminopropyl modified mesoporous SiO2 nanoparticles, MCM-41 type, have been synthesized by the co-condensation method from tetraethylorthosilicate (TEOS) and aminopropyltriethoxysilane (APTES). By means of modifying TEOS/APTES ratio we have carri[...]![]()
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Martín Barroso, David ; Núñez Serrano, Juan Andrés ; Velázquez Angona, Francisco Javier | Elsevier | 2017In this paper, we propose a measure of geographic accessibility of firms to labour markets. This measure is computed from the microeconomic perspective, avoiding ex ante imposition of administrative boundaries and including the individual charac[...]![]()
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Gómez-Boronat, Miguel ; Isorna Alonso, Esther ; Conde-Sieira, Marta ; Delgado Saavedra, María Jesús ; Soengas, José L. ; Pedro Ormeño, Nuria de | Elsevier | 2020-01The objective of this study was to investigate the role of palmitoylethanolamide (PEA) in the regulation of energy homeostasis in goldfish (Carassius auratus). We examined the effects of acute or chronic intraperitoneal treatment with PEA (20 ?g[...]![]()
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A new species of Kinorhyncha, Triodontoderes lagahoo sp. nov., is described from Tobago Island, Caribbean Sea (western Atlantic Ocean) from a coastal, sandy habitat using both light and scanning electron microscopy. The species is characterized [...]![]()
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Salvatteci, R. ; Gutierrez, D. ; Field, D. ; Sifeddine, A. ; Ortlieb, L. ; Caquineau, S. ; Baumgartner, T. ; Ferreira, V. ; Bertrand, A. | Elsevier | 2019-07-04T16:59:35ZUpwelling of cold, nutrient-rich water from the oxygen minimum zone (OMZ) off Peru sustains the world's highest production of forage fish, mostly composed of anchovy (Engraulis ringens). However, the potential impacts of climate change on upwell[...]![]()
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Malamud Kessler, C. ; Bruno, E. ; Chiquete, E. ; Senties Madrid, H. ; Campos Sanchez, M. | Elsevier | 2019-02-06T14:51:21ZIntroducción. El síncope neuralmente mediado (SNM) se define como una pérdida súbita y transitoria del estado de alerta debido a una caída brusca de la presión arterial (PA). Objetivos. Describir los mecanismos putativos fisiopatológicos respons[...]![]()
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Mell, Michael ; Moleiro, Lara H. ; Hertle, Yvonne ; López-Montero, Iván ; Cao García, Francisco Javier ; Fouquet, Peter ; Hellweg, Thomas ; Monroy, Francisco | Elsevier | 2015-01The presence of coupled modes of membrane motion in closed shells is extensively predicted by theory. The bilayer structure inherent to lipid vesicles is suitable to support hybrid modes of ctirvature motion coupling membrane bending with the lo[...]![]()
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Starting from the linearized fluctuating Boussinesq equations we derive an expression for the structure factor of fluids in stationary convection-free thermal nonequilibrium. states, taking into account both gravity and finite-size effects. It i[...]![]()
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Ayllón Quevedo, F. ; Souza Egipsy, V. ; Sanz Montero, M. Esther ; Rodríguez Aranda, Juan Pablo | Elsevier | 2007This research work is centred on continental lacustrine gypsum deposits of Miocene age cropping out in the easternmost part of the Madrid Basin. These gypsum deposits, accumulated in a continental saline lake, are characterized by a spectacular,[...]