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Documentos disponibles de esta editorial (2214)
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The Cretaceous (Mercedes Formation) and Paleogene (Queguay Formation) deposits cropping out inWand S Uruguay comprise two terrestrial limestone units that are very rich in trace fossils. The study of these units permits to propose a sedimentolog[...]texto impreso
Lozano-Canales, A. ; Janampa-Santome, M. ; Clark, D. ; Gonzáles, W.L. | Elsevier | 2019-07-04T17:00:23ZLepidium meyenii Walpers (maca)is a Peruvian species cultivated in the high Andean region (ca. 4000 m.a.s.l.), highly praised for the nutritional properties of its hypocotyl. The benefits to human health and their relationship with the hypocotyl[...]texto impreso
Belda Aguilar, Ignacio ; Blázquez Conchillo, Lorena ; Ruiz Ruiz, Javier ; Marquina Díaz, Domingo ; Santos de la Sen, Antonio | Elsevier | 2016-04-16Pectinase enzymes have shown a considerable influence in both, sensitive and technological properties of wines. They can help to improve clarification process, releasing more color and flavor compounds entrapped in grape skin, facilitating the l[...]texto impreso
Merger and Acquisitions have been on the rise since the last three decades and as such have attracted considerable attention from the research community. Conclusions drawn by the existing studies indicate that such transactions do not result in [...]texto impreso
Mascini, Marcello ; Montesano, Camilla ; Perez, German ; Wang, Joseph ; Compagnone, Dario ; Sergi, Manuel | Elsevier | 2017-05-17The objective of the present work is to demonstrate a rational way to prepare selective sorbents able to extract simultaneously several structural analogs. For this purpose the binding specificity of two hexapeptides computationally designed (VY[...]texto impreso
Pérez Sirvent, Carmen ; Martínez Sánchez, María José ; García Lorenzo, Mari Luz ; Molina, J. ; Tudela Serrano, María Luz ; Mantilla, W. ; Bech, J. | Elsevier | 2010The objective of this study was to determine the selenium content in soils from the Region of Murcia (SE, Spain) and to study the possible relationship between mineralogical composition, soil properties and selenium content. In addition, generic[...]texto impreso
Romero Sobrino, Iván ; Francisco Martínez, Patricia de ; Gutiérrez, Juan Carlos ; Martín-González, Ana María | Elsevier | 2019-06-25Selenium is an essential micronutrient but at high concentrations can produce severe cytotoxicity and genomic damage. We have evaluated the cytotoxicity, ultrastructural and mitochondrial alterations of the two main selenium inorganic species; s[...]texto impreso
In this short note, we focus on self-inverse Sheffer sequences and involutions in the Riordan group. We translate the results of Brown and Kuczma on self-inverse sequences of Sheffer polynomials to describe all involutions in the Riordan group.texto impreso
OBJECTIVES: One strategy to prevent the onset of non-communicable diseases is to motivate healthy lifestyles through health media messages. In Peru, the food industry is currently implementing such strategy with health message cues, in the form [...]texto impreso
We present the first numerical solutions of a kinetic theory description of self-sustained current oscillations in n-doped semiconductor superlattices. The governing equation is a single-miniband Boltzmann-Poisson transport equation with a BGK ([...]texto impreso
We analyze correlation functions of Wilson loop observables and local vertex operators within the strongcoupling regime of the AdS/CFT correspondence. When the local operator corresponds to a light string state with finite conserved charges the [...]texto impreso
In this work we study the behavior of a family of solutions of a semilinear elliptic equation, with homogeneous Neumann boundary condition, posed in a two-dimensional oscillating thin region with reaction terms concentrated in a neighborhood of [...]texto impreso
In this paper we show that dissipative reaction-diffusion equations in unbounded domains posses extremal semistable ground states equilibria, which bound asymptotically the global dynamics. Uniqueness of such positive ground state and their appr[...]texto impreso
Hsieh, Matthew-M. ; Callacondo, David ; Rojas-Camayo, Jose ; Quesada-Olarte, Jose ; Wang, Xunde ; Uchida, Naoya ; Maric, Irina ; Remaley, Alan-T. ; Leon-Velarde, Fabiola ; Villafuerte, Francisco-C. ; Tisdale, John-F. | Elsevier | 2019-02-06T14:45:35ZChronic mountain sickness (CMS) results from chronic hypoxia. It is unclear why certain highlanders develop CMS. We hypothesized that modest increases in fetal hemoglobin (HbF) are associated with lower CMS severity. In this cross-sectional stu[...]texto impreso
We introduce a methodology for sensitivity analysis of evidence variables in Gaussian Bayesian networks. Knowledge of the posterior probability distribution of the target variable in a Bayesian network, given a set of evidence, is desirable. How[...]texto impreso
Bayesian networks (BNs) have become an essential tool for reasoning under uncertainty in complex models. In particular, the subclass of Gaussian Bayesian networks (GBNs) can be used to model continuous variables with Gaussian distributions. Here[...]texto impreso
Major histocompatibility complex class I (MHCI) and class II (MHCII) molecules display peptides on antigen-presenting cell surfaces for subsequent T-cell recognition. Within the human population, allelic variation among the classical MHCI and II[...]texto impreso
Sequences of Levy transformations for the Darboux system of conjugates nets in multidimensions are studied. We show that after a suitable number of Levy transformations, with at least a Levy transformation in each direction, we get closed formu[...]texto impreso
This study introduces and develops a new approach to sequential aggregation of bags. It generalizes several related approaches known from the literature. The approach is based on a system of aggregation functions with property (SA) – a weakened [...]texto impreso
Alfonso, José F. ; Lisa Fernández, Carlos ; Fernández-Vega Cueto, Luis ; Poo López, Arancha ; Madrid Costa, David ; Fernández-Vega, Luis | Elsevier | 2017-02Purpose: To evaluate the efficacy, safety, predictability, and stability of sequential Ferrara intrastromal corneal ring segment (ICRS) and intraocular lens (IOL) implantation in patients with keratoconus and cataract. Setting: Fernández-Vega Op[...]texto impreso
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Moya-Salazar, Jeel ; Ubidia-Incio, Roberto ; Incio-Grande, Maritza ; Blejer, Jorgelina L. ; Gonzalez, Carlos A. | Elsevier | 2019-01-25T16:03:20ZINTRODUCTION: Safety in Transfusion Medicine is subject to regulations and government legislation within a total quality framework. The aim of this study was to evaluate the impact of seroprevalence and indeterminate results on lost units and co[...]texto impreso
Marco López, Eva María ; Ballesta, Javier Antonio ; Irala, Carlos ; Hernández, María Donina ; Serrano, María Elisa ; Mela Rivas, Virginia ; LópezGallardo, Meritxell ; Viveros, María Paz | Elsevier | 2017-01Alcohol use disorder and depression are highly comorbid, and both conditions exhibit important sexual dimorphisms. Here, we aimed to investigate voluntary alcohol consumption after 6 weeks of chronic mild stress (CMS) in Wistar rats – employed a[...]texto impreso
García Campos, Cecilia ; Modesto Mata, Mario ; Martinón Torres, María ; Martínez de Pinillos, Marina ; Martín-Francés, Laura ; Arsuaga, Juan Luis ; Bermúdez de Castro, José María | Elsevier | 2020-07Sexual dimorphism is an important component of the total variation seen in populations and plays a key role in taxonomic debates. In this study, microtomographic (microcomputed tomography) techniques were applied to a sample of hominin teeth fro[...]texto impreso