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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[...]texto impreso
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[...]texto impreso
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 [...]texto impreso
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[...]texto impreso
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[...]texto impreso
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[...]texto impreso
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[...]texto impreso
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[...]texto impreso
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[...]texto impreso
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[...]texto impreso
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[...]texto impreso
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[...]texto impreso
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=Ttexto impreso
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[...]texto impreso
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[...]texto impreso
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[...]texto impreso
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[...]texto impreso
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[...]texto impreso
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[...]texto impreso
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[...]texto impreso
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[...]texto impreso
Consider the initial-boundary value problem for ut=?u-?u(q) with ?> 0, 0texto impreso
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[...]texto impreso
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[...]texto impreso
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[...]