A Model-Driven Approach for Business Process Management

The Business Process Management is a common mechanism recommended by a high number of standards for the management of companies and organizations. In software companies this practice is every day more accepted and companies have to assume it, if they want to be competitive. However, the effective definition of these processes and mainly their maintenance and execution are not always easy tasks. This paper presents an approach based on the Model-Driven paradigm for Business Process Management in software companies. This solution offers a suitable mechanism that was implemented successfully in different companies with a tool case named NDTQ-Framework.Ministerio de Educación y Ciencia TIN2010-20057-C03-02Junta de Andalucía TIC-578

Instrumentos y trabajos geodésicos de la Armada: la Comisión Hidrográfica de la Península y el Observatorio de San Femando (1859-1887)

This article introduces a brief survey on the geodetic tasks carried out by the Spanish Navy in the 19th century, and the scientific instruments used by the San Fernando Observatory and the hydrographical expeditions. Special attention deserves the Iberian Peninsula Hydrographical Expedition, in charge of surveying the Spanish coasts.Este artículo presenta un breve estudio sobre los trabajos geodésicos emprendidos por la Armada Española en el siglo XIX, y los instrumentos utilizados por el Observatorio de San Fernando y por las comisiones hidrográficas, especialmente la Comisión Hidrográfica de la Península, encargada del levantamiento cartográfico de las costas españolas

Entity reconciliation in big data sources: A systematic mapping study

The entity reconciliation (ER) problem aroused much interest as a research topic in today’s Big Dataera, full of big and open heterogeneous data sources. This problem poses when relevant information ona topic needs to be obtained using methods based on: (i) identifying records that represent the samereal world entity, and (ii) identifying those records that are similar but do not correspond to the samereal-world entity. ER is an operational intelligence process, whereby organizations can unify differentand heterogeneous data sources in order to relate possible matches of non-obvious entities. Besides, thecomplexity that the heterogeneity of data sources involves, the large number of records and differencesamong languages, for instance, must be added. This paper describes a Systematic Mapping Study (SMS) ofjournal articles, conferences and workshops published from 2010 to 2017 to solve the problem describedbefore, first trying to understand the state-of-the-art, and then identifying any gaps in current research.Eleven digital libraries were analyzed following a systematic, semiautomatic and rigorous process thathas resulted in 61 primary studies. They represent a great variety of intelligent proposals that aim tosolve ER. The conclusion obtained is that most of the research is based on the operational phase asopposed to the design phase, and most studies have been tested on real-world data sources, where a lotof them are heterogeneous, but just a few apply to industry. There is a clear trend in research techniquesbased on clustering/blocking and graphs, although the level of automation of the proposals is hardly evermentioned in the research work.Ministerio de Economía y Competitividad TIN2013-46928-C3-3-RMinisterio de Economía y Competitividad TIN2016-76956-C3-2-RMinisterio de Economía y Competitividad TIN2015-71938-RED

Diversity and abundance of weed seeds in cereal crop grain in Western Andalusia, South Spain

Se analizó la presencia de semillas de malas hierbas en muestras de la cosecha de cereal de 2013 correspondientes a 200 campos de las provincias de Huelva y Sevilla. Se identificaron 91 especies de las que 29 mostraron una frecuencia de presencia de al menos el 5%. La especie más frecuente (74%) y abundante fue “Lolium rigidum”. Las especies arvenses del género “Phalaris” también fueron muy frecuentes (66-32%). Especies con frecuencia superior al 20% fueron “Polygonum aviculare”, “Convolvulus arvensis”, “Chrysanthemum coronarium”, “Pulicaria paludosa” y “Centaurea diluta”. En comparación con estudios previos referidos al conjunto del área cerealista española, se observó una frecuencia similar de las especies dominantes “L. rigidum” y “P. aviculare” y una frecuencia muy superior de “Phalaris spp.” En sentido contrario, la frecuencia de especies segetales especialistas fue muy inferior.We examined the weed seeds present in crop grain samples from 2013 from across 200 cereal fields in Huelva and Seville provinces, Andalusia, South-western Spain. Ninety-one weed species were identified of which 29 species were present in at least 5% of samples. “Lolium rigidum” was the most frequent (74%) and abundant species. The weedy species of the genus “Phalaris” were also highly frequent (66-32%). “Polygonum aviculare”, “Convolvulus arvensis”, “Chrysanthemum coronarium”, “Pulicaria paludosa” and “Centaurea diluta” were detected in more than 20% of samples. Compared to available data for the whole cereal crop area in Spain, we found a similar frequency of the dominant weeds “L. rigidum” and “P. aviculare” but a much higher presence of “Phalaris” spp. In an opposite trend, the frequency of specialist segetal species was much lower

Assessment, Design and Implementation of a Private Cloud for MapReduce Applications

Scientific computation and data intensive analyses are ever more frequent. On the one hand, the MapReduce programming model has gained a lot of attention for its applicability in large parallel data analyses and Big Data applications. On the other hand, Cloud computing seems to be increasingly attractive in solving these computing problems that demand a lot of resources. This paper explores the potential symbiosis between MapReduce and Cloud Computing, in order to create a robust and scalable environment to execute MapReduce workflows regardless of the underlaying infrastructure. The main goal of this work is to provide an easy-to-install interface, so as non-expert scientists can deploy a suitable testbed for their MapReduce experiments on local resources of their institution. Testing cases were performed in order to evaluate the required time for the whole executing process on a real clusterS

IberWQ: A GPU Accelerated Tool for 2D Water Quality Modeling in Rivers and Estuaries

Este artigo inclúese no número especial "Modelling Flow, Water Quality, and Sediment Transport Processes in Coastal, Estuarine, and Inland Waters"[Abstract] Numerical models are useful tools to analyze water quality by computing the concentration of physical, chemical and biological parameters. The present work introduces a two-dimensional depth-averaged model that computes the most relevant and frequent parameters used to evaluate water quality. High performance computing (HPC) techniques based on graphic processing unit (GPU) parallelization have been applied to improve the efficiency of the package, providing speed-ups of two orders of magnitude in a standard PC. Several test cases were analyzed to show the capabilities and efficiency of the model to evaluate the environmental status of rivers and non-stratified estuaries. IberWQ will be freely available through the package Iber.European Commission; INTERREG-POCTEP; 0034_RISC_ML_6_EXunta de Galicia; ED431C 2017/64-GRCXunta de Galicia; ED481A-2017/31

Oil-in-Water Pickering Emulsions Stabilized with Nanostructured Biopolymers: A Venue for Templating Bacterial Cellulose

Pickering emulsions (PEs) differ from conventional emulsions in the use of solid colloidal particles as stabilizing agents instead of traditional amphiphilic molecules. Nanostructured biopolymers (NBs) emerge as a promising alternative for PE stabilization owing to their remarkable biocompatibility, abundant availability, and low cost. To explore this potential, a study is herein presented, in which cellulose nanocrystals (CNCs), both type I and type II allomorphs, and chitin nanocrystals (ChNCs) were used for stabilizing oil-in-water PEs prepared by the use of ultrasound. Sunflower oil was selected as the oil phase as it offers the advantages of being edible, renewable, and inexpensive. By utilizing ζ-potential, static light diffraction, and visual observations, we determined the optimal oil/water ratio for each type of NB to obtain stable emulsions after 14 days. The optimized PEs were used to form bacterial nanocellulose composites through emulsion templating. To our knowledge, this study represents a pioneering work in exploiting oil-in-water PEs for this approach. Additionally, it entails the first utilization of nonmercerized type II CNCs as stabilizers for PEs, while also establishing a direct comparison among the most relevant NBs. The resulting composites exhibited a unique morphology, composed of larger pores compared to standard bacterial nanocellulose aerogels. These findings highlight the notable potential of NBs as stabilizers for PEs and their ability to generate green nanocomposites with tailored properties

Utilización de Trichoderma spp. en el control de la podredumbre de raíz y cuello de espárrago

456 páginasLa podredumbre de raíz y cuello (PRC) producida por diversas especies del género Fusarium es una de las principales enfermedades del espárrago (Asparagus officinalis L.), provocando importantes pérdidas de producción. Para evaluar la capacidad antagonista de cuatro aislados de Trichoderma spp. (TGr1.41, T108, T25/99 y T11) frente a Fusarium oxysporum f.sp. asparagi (Foa) y Fusarium solani (Fs) en 2009 se llevaron a cabo cuatro experimentos en umbráculo en dos localidades: Alcalá del Río (Sevilla) y Chipiona (Cádiz). Se utilizaron contenedores de 100 l de capacidad infestados con Foa o Fs (103- 105 UFC/g suelo) en los cuales se sembraron cuatro plantas del cultivar de espárrago Grande, susceptible a la enfermedad. Previamente a su plantación, las plantas fueron tratadas mediante inmersión de sus raíces en una dilución de Trichoderma spp. (107 conidias/ml) y, tras su plantación, mediante aportes mensuales de los mismos aislados incrementados en granos de trigo. Al finalizar el ensayo se determinó el peso fresco de las raíces y se cuantificó la densidad de Trichoderma spp. en la rizosfera. En todos los experimentos se obtuvieron niveles bajos de enfermedad, debido posiblemente a la baja densidad de inóculo en el sustrato antes de la plantación y a condiciones ambientales poco favorables para el desarrollo de la PRC. No se encontraron diferencias significativas entre las plantas tratadas con cualquiera de los aislados de Trichoderma spp. y las plantas testigo no tratadas, tanto en el conjunto de plantas inoculadas con Foa o Fs como en el de las no inoculadas. Sí se observó una interacción entre el aislado de T. atroviride (T11) con Foa y Fs, y el de T. asperellum (T108) con Fs, de forma que el peso de las plantas tratadas con dichos aislados fue significativamente mayor cuando se encontraron en contacto con los patógenos. El estudio de la colonización de la rizosfera por parte de Trichoderma spp. también mostró en algunos casos una interacción entre el agente de biocontrol y el patógeno: los aislados T11 y T108 colonizaron en mayor extensión la rizosfera de las plantas de espárrago que estuvieron en contacto con Foa y, con Foa y Fs, respectivamente, que las de las plantas tratadas no inoculadas.Peer reviewe

Tectonoelins, new norlignans from a bioactive extract of Tectona grandis

A phytochemical study on the most bioactive extract from Tectona grandis led to the isolation of two new norlignans, tectonoelin A and tectonoelin B, together with ten known compounds. The structures of the compounds were determined by a combination of 1D and 2D NMR techniques. This is the first time that this type of compound (C8–C80 linkage norlignans) has been isolated from a dicotyledon. The general bioactivities of the isolated compounds have been studied using etiolated wheat coleoptiles. The activities showed that the isolated lignans and norlignans should be part of the defence mechanisms of this plant

The natural ocean acidification and fertilization event caused by the submarine eruption of El Hierro

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