On the localization and numerical computation of positive radial solutions for ϕ-Laplace equations in the annulus

The paper deals with the existence and localization of positive radial solutions for stationary partial differential equations involving a general ϕ-Laplace operator in the annulus. Three sets of boundary conditions are considered: Dirichlet–Neumann, Neumann–Dirichlet and Dirichlet–Dirichlet. The results are based on the homotopy version of Krasnosel’ski˘ı’s fixed point theorem and Harnack type inequalities, first established for each one of the boundary conditions. As a consequence, the problem of multiple solutions is solved in a natural way. Numerical experiments confirming the theory, one for each of the three sets of boundary conditions, are performed by using the MATLAB object-oriented package Chebfun

A Semantic-Based Platform for Efficient Online Communication

To achieve an effective and efficient way of disseminating information to ever growing communication channels, we propose an ap proach that separates the information and communication channels and interlinks them with an intermediary component. The separation enables various dimensions to reuse the information and communication chan nels in transactional communication. In this paper we introduce our on line communication platform, which is comprised of several components. The important roles of semantic web technologies to the platform are explained in detail, including a use case to show the contributions of se mantic web in supporting the effectiveness and efficiency of information dissemination.European Union (UE) EU FP7 no. 600663 (Prelida)European Union EU FP7 257641 (PlanetData)European Union (UE) EU FP7 284860 (MSEE

A Service Ranker Based on Logic Rules Evaluation and Constraint Programming

Ranking of Semantic Web Services is usually performed based on user preferences descriptions. These descriptions are expressed in terms of an underlying logical formalism, which limits their expressiveness. Thus, there are some kind of descriptions, such as utility functions, that cannot be handled by reasoners currently being used to perform Semantic Web Services tasks, though utility functions provide a higher level of expressiveness. in this work, we present a hybrid solution to allow the introduction of utility functions in user preferences descriptions, using both Logic Programming rules evaluation and Constraint Programming to perform the ranking process. This proposal is based on the Web Service Modeling Ontology, extending it with a highly expressive framework to specify user preferences, and enabling the integration of different engines to perform the ranking process

Enabling customers engagement and collaboration for small and medium-sized enterprises in ubiquitous multi-channel ecosystems

Over the last few years, we have encountered an exponential growth in online communication opportunities. Organizations have more and more ways to connect and engage with their current or future customers. The existence of more opportunities in connecting to people can be both an enabler and a burden. Being present at a multitude of different channels requires the effective management of a very large number of adapted contents, formats, and interaction patterns fulfilling the communication and cooperation needs of distributed target groups. In this respect, we integrate existing fragmented communication and monitoring approaches into a full-fledged communication model as a basis for an adequate engagement approach. We describe applications of our approach in both the eTourism and manufacturing domain. In this paper, we introduce an approach that will enable communication, collaboration and value exchange of users through a multitude of online interaction possibilities based on the use of semantic technology. Finally, we also compare our approach with existing solutions with respect to the identified challenges in this subject.European Union (UE) EU FP7 284860 (MSEE

Ranking Semantic Web Services Using Rules Evaluation and Constraint Programming

Current Semantic Web Services discovery and ranking proposals are based on user preferences descriptions whose expressiveness are limited by the underlying logical formalism used. Thus, highly expressive preference descriptions, such as utility functions, cannot be handled by the kind of reasoners traditionally used to perform Semantic Web Services tasks. in this work, we outline a hybrid approach to allow the introduction of utility functions in user preferences descriptions, where both rules evaluation and constraint programming are used to perform the ranking process. Our proposal extends the Web Service Modeling Ontology with these descriptions, providing a highly expressive framework to specify preferences, and enabling a more general ranking process, which can be performed by different engines

Enabling Scalable Multi-channel Communication through Semantic Technologies

With the advance of the Web in the direction Social Media the number of communication possibilities has exponentially increased bringing new challenges and opportunities for companies to build and shape their reputation online as well as to engage and maintain the relationships to their customers. In this paper we describe how semantic technologies enable scalable, effective and efficient on-line communication. We illustrate four different ways in which semantics can be used for this purpose. First, we discuss semantic analysis of communication items based on 'classical' semantic, such as natural language processing. Second, we look at semantics as a channel, viewing Linked Open Data vocabularies not only as terminological assets but as communication channels. Third, semantics provide the methodologies and tools for content modeling by means of ontologies. Finally, semantics through semantic matchmaking enable semi-automatic assignment and distribution of content to channels and vice-versa

TRICHODERMA HARZIANUM RIAFI PARA EL CONTROL DE PYRICULARIA GRISEA SACC Y SAROCLADIUM ORYZAE (SAWADA) W. GAMS & D. HAWKSWORTH EN EL CULTIVO DEL ARROZ

El cultivo del arroz se encuentra afectado por la incidencia de las enfermedades fungosas Pyricularia grisea Sacc, y Sarocladium oryzae (sawada) W. Gams & D. Hawksworth. En la investigación se evaluó el efecto de la aplicación por vía foliar de Trichoderma harzianum Riafi en el control de Pyricularia grisea Sacc y Sarocladium oryzae (sawada) W. Gams & D. Hawksworth en el cultivo del arroz en condiciones de producción en áreas del Complejo Agro-Industrial Arrocero “Ruta Invasora” en el Municipio Vertientes, sobre un suelo Ferralítico Amarillento Lixiviado. Se utilizó la tecnología de preparación de suelo en seco y el método de siembra directa con una densidad de siembra de 137 kg.ha-1 con una población de 167 plantas.m-2. Para las evaluaciones se utilizó el sistema estándar de evaluaciones del IRRI (Internacional Rice Research Institute), del cual se tomaron las fórmulas del porcentaje de área foliar afectada y del índice de severidad. El uso preventivo de trichoderma harzianum Riafi Cepa A-34 por vía foliar, disminuyó las afectaciones de la enfermedad Pyricularia grisea Sacc  en condiciones de producción de arroz. Durante la etapa experimental no se manifestaron síntomas de Sarocladium oryzae (sawada) W. Gams & D. Hawksworth una vez inoculada la enfermedad; los valores más bajos del porcentaje de área foliar afectada se lograron con la dosis de 5 kg.ha-1 de Trichoderma harzianum Riafi en el control de la enfermedad Pyricularia grisea Sacc

ESPECIES DE LA FAMILIA SCARABAEIDAE ASOCIADAS A PLANTACIONES DE YUCA EN LA PROVINCIA CIEGO DE ÁVILA, CUBA

El trabajo se realizó en la empresa Agroindustrial Ceballos durante  el período de tiempo  comprendido entre mayo de 2012 y julio de 2016. Se colocaron trampas  de luz blanca  en las  plantaciones de la  Yuca, utilizando metodologías de  Sisne,  2009  y MINAG, 1985 para identificar la composición  de especies del orden Coleoptera familia Scarabaeidae asociadas a estos agroecosistemas. Se determinó que las especies  Cyclocephala cubana Chapin, Athyreus tridentatus McL., Phyllophaga dissimilis Chev., Anomala calceata Chev., Strategus sarpedon (Burm.) y Oniticellus cubiensis están asociadas plantaciones de  Yuca

Climate Change and Restoration of Degraded Land

The United Nations Climate Change Conference, Durban 2011, delivered a breakthrough on the international community's response to climate change. In the second largest meeting of its kind, the negotiations advanced, in a balanced fashion, the implementation of the Convention and the Kyoto Protocol, the Bali Action Plan, and the Cancun Agreements. The outcomes included a decision by Parties to adopt a universal legal agreement on climate change as soon as possible, and no later than 2015. One of the decisions adopted by COP 17 and CMP 7 regard to the land use, land-use change and forestry, and invites the Intergovernmental Panel on Climate Change to review and, if necessary, update supplementary methodologies for estimating anthropogenic greenhouse gas emissions by sources and removals by sinks resulting from land use, land-use change and forestry activities under Article 3, paragraphs 3 and 4, of the Kyoto Protocol. Land degradation is a human-induced or natural process which negatively affects the productivity of land within an ecosystem. The direct causes of land degradation are geographically specific. Climate change, including changes in short-term variation, as well as long-term gradual changes in temperature and precipitation, is expected to be an additional stress on rates of land degradation. Book Topics: • Introduction to Climate Change and Land Degradation • Change Mitigation • Climate Change and Waste Land Restoration • Water Management and Planning • Erosion and Hydrological Restoration • Forest Fire Land Restoration • Polluted Soils Restoration • Combating Climate Change by Restoration of Degraded Land • Research Matters – Climate Change Governance • Advanced Statistics Climate Change and Restoration of Degraded Land is of interests to academics, engineers, consultans, designers and professionals involved in restoration of degraded lands projects

ENTOMOFAUNA PRESENTE EN LA ASOCIACIÓN FRIJOL, TRIGO Y MAÍZ EN LA FINCA “LA PROVECHOSA”, CIEGO DE ÁVILA

El trabajo de investigación se realizó durante el período comprendido entre octubre del 2014 y enero del 2015 con el objetivo de determinar la composición de insectos presente en la asociación frijol (Phaseolus vulgaris L.), trigo (Triticum aestivum L.) y maíz (Zea mays L.) en las condiciones de la finca La Provechosa ubicada en el  Municipio de Ciego de Ávila, para el establecimiento de un manejo agroecológico adecuado. Las variedades utilizadas fueron maíz de la variedad Tuzón, trigo de la variedad Cueto-109 y dos variedades de frijol (Milagro Villareño y Rubí),  se realizaron colectas de los insectos asociados en cada parcela para identificar la composición de especies presente, los índices ecológicos de abundancia y frecuencia relativa de los mismos. Se colectaron un total de 1494 insectos correspondientes 12 especies, 11 familias y 5 órdenes