The influence of Motivations and Barriers in the Benefits. An empirical study of EMAS certified business in Spain

The main objective of this research is to analyze through a structured questionnaire, the influence of the motivations that lead companies to implement Eco-Management and Audit Scheme (EMAS) and the barriers found in the benefits perceived by companies, as well as, the degree of difficulty perceived for the implementation of the different requirements to be fulfilled, which are established in the regulation. An extensive review of the academic literature published on motivations, barriers, difficulties and benefits in environmental standards has been carried out in order to establish the working hypotheses which refer to the relationship between motivations, barriers with the benefits and degree of difficulty in implementing the requirements. The empirical investigation was carried out in a sample of 114 of the 255 companies of the Autonomous Community of Galicia (Spain) that have EMAS certification. The methodology used was the use of the application of a regression analysis to test the hypotheses; pre- viously the measurement scales were validated and an exploratory factorial analysis was applied in order to determine the structure of the different variables considered in the study. The results show that the motivations affect the benefits positively and on the contrary, affect the barriers negatively (reduce them) and it was observed that the greater the barriers, the lower the benefits obtained from the implementation of EMAS (negative influence). The proposed regression models show the joint influence of the motivations and barriers on the benefits considered

ABS4GD: a multi-agent system that simulates group decision processes considering emotional and argumentative aspects

Emotion although being an important factor in our every day life it is many times forgotten in the development of systems to be used by persons. In this work we present an architecture for a ubiquitous group decision support system able to support persons in group decision processes. The system considers the emotional factors of the intervenient participants, as well as the argumentation between them. Particular attention will be taken to one of components of this system: the multi-agent simulator, modeling the human participants, considering emotional characteristics, and allowing the exchanges of hypothetic arguments among the participants

Personality, emotion and mood simulation in decision making

In this paper is proposed the integration of personality, emotion and mood aspects for a group of participants in a decision-making negotiation process. The aim is to simulate the participant behavior in that scenario. The personality is modeled through the OCEAN five-factor model of personality (Openness, Conscientiousness, Extraversion, Agreeableness and Negative emotionality). The emotion model applied to the participants is the OCC (Ortony, Clore and Collins) that defines several criteria representing the human emotional structure. In order to integrate personality and emotion is used the pleasure-arousal-dominance (PAD) model of mood

Determinantes de la actividad física en México

Según la Organización para la Cooperación y el Desarrollo Económico (2010), México ocupa el primer lugar mundial en sobrepeso y el segundo en obesidad. El Programa Nacional de Cultura Física y Deporte (2008) busca elevar a treinta y cinco millones el número de habitantes físicamente activos en el país para 2012. El objetivo del presente estudio es la detección y dimensionamiento de los factores que inciden en la realización de actividad física (AF) entre los residentes de México. Utilizando datos de la Encuesta Nacional Sobre Uso del Tiempo (2009), se estimaron dos modelos econométricos

Caracterização dinâmica da ponte Luiz Bandeira em Sejães

A Ponte Luiz Bandeira, localizada na N333-3 sobre o Rio Vouga próxima da localidade de Sejães (Oliveira de Frades), é hoje considerada como a mais antiga ponte de betão armado em utilização no nosso país, e uma das mais velhas da Europa. Recentemente foram realizados na Ponte Luiz Bandeira um conjunto de ensaios de inspecção e diagnóstico estrutural que incluíram, entre outros, uma identificação dinâmica para a determinação das frequências naturais, modos de vibração e coeficientes de amortecimento. Para a elaboração da campanha experimental, primeiramente foi efectuada uma análise numérica de sensibilidade da resposta dinâmica da ponte, que permitiu melhor definir os procedimentos de ensaio em campo. Na ponte foram efectuados dois tipos de ensaios dinâmicos: ensaios com ruído ambiente e ensaios para a determinação dos coeficientes de amortecimento com recurso à passagem de um automóvel sobre uma prancha no pavimento a diferentes velocidades. Posteriormente, os resultados da identificação dinâmica foram utilizados para a calibração do modelo numérico que permitiu aferir, juntamente com os restantes ensaios de inspecção e diagnóstico, o estado de conservação estrutural da ponte Luiz Bandeira. A presente comunicação apresenta e descreve detalhadamente todas as fases de estudo referentes à caracterização dinâmica da ponte

Ambient intelligence in emotion based ubiquitous decision making

As the time goes on, it is a question of common sense to involve in the process of decision making people scattered around the globe. Groups are created in a formal or informal way, exchange ideas or engage in a process of argumentation and counterargumentation, negotiate, cooperate, collaborate or even discuss techniques and/or methodologies for problem solving. In this work it is proposed an agent-based architecture to support a ubiquitous group decision support system, i.e. based on the concept of agent, which is able to exhibit intelligent, and emotional-aware behaviour, and support argumentation, through interaction with individual persons or groups. It is enforced the paradigm of Mixed Initiative Systems, so the initiative is to be pushed by human users and/or intelligent agents

Improving the activity of gold nanoparticles for the water-gas shift reaction using TiO2–Y2O3: an example of catalyst design

In the last ten years, there has been an acceleration in the pace at which new catalysts for the watergas shift reaction are designed and synthesized. Pt-based catalysts remain the best solution when only activity is considered. However, cost, operation temperature, and deactivation phenomena are important variables when these catalysts are scaled in industry. Here, a new catalyst, Au/TiO2–Y2O3, is presented as an alternative to the less selective Pt/oxide systems. Experimental and theoretical techniques are combined to design, synthesize, characterize and analyze the performance of this system. The mixed oxide demonstrates a synergistic effect, improving the activity of the catalyst not only at large-to-medium temperatures but also at low temperatures. This effect is related to the homogeneous dispersion of the vacancies that act both as nucleation centers for smaller and more active gold nanoparticles and as dissociation sites for water molecules. The calculated reaction path points to carboxyl formation as the rate-limiting step with an activation energy of 6.9 kcal mol 1, which is in quantitative agreement with experimental measurements and, to the best of our knowledge, it is the lowest activation energy reported for the water-gas shift reaction. This discovery demonstrates the importance of combining experimental and theoretical techniques to model and understand catalytic processes and opens the door to new improvements to reduce the operating temperature and the deactivation of the catalyst.Ministerio de Economía y Competitividad (CTQ2015-64669-P and ENE2015-66975- C3-2-R)Junta de Andalucía (FQM-132 and TEP-106)European Union (HT-PHOTO-DB No. 752608

Ambient intelligence in emotion based ubiquitous decision making

As the time goes on, it is a question of common sense to involve in the process of decision making people scattered around the globe. Groups are cre- ated in a formal or informal way, exchange ideas or engage in a process of argumentation and counter- argumentation, negotiate, cooperate, collaborate or even discuss techniques and/or methodologies for problem solving. In this work it is proposed an agent-based architecture to support a ubiquitous group decision support system, i.e. based on the concept of agent, which is able to exhibit intelli- gent, and emotional-aware behaviour, and support argumentation, through interaction with individual persons or groups. It is enforced the paradigm of Mixed Initiative Systems, so the initiative is to be pushed by human users and/or intelligent agents

Gold Nanoparticles on Yttrium Modified Titania: Support Properties and Catalytic Activity

A series of titanium oxide catalysts modified with yttrium has been prepared by sol¿gel method and their structural properties have been studied. The incorporation of yttrium in the titania lattice favors the formation of oxygen vacancies while at low Y loadings the anatase structure is preserved. The catalytic activity of these solids for CO oxidation is found to be significantly dependent on their physical properties. In particular the amount of dopant controls the number of surface oxygen vacancies created as well as the gold particle size, which directly affects the catalytic activity. Also, a linear relationship between the catalytic activity and the band gap values, which depend on the Y loading, is observed. Density functional theory based calculations show that Y atoms are incorporated at the TiO2 surface at substitutional positions only, while the preferred oxygen vacancies arise by removing the bridge surface oxygen atoms. These O-vacancies are the preferential adsorption sites for Au atoms and nanoparticles, acting as nucleation centers that favor the dispersion of the catalyst active phase over the support surface. In agreement with experiment, Y doping is found to decrease the band gap of the support due to a destabilization of the valence band of the oxide.Ministerio de Ciencia e Innovación ENE2009-14522-C05-01, MAT2008-04918, CSD-00023Junta de Andalucía P08-FQM-0366