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Encontrado(s) 2019418 resultado(s)
Encontrada(s) 201942 página(s)

Features Exploration from Datasets Vision in Air Quality Prediction Domain

  • Iskandaryan, Ditsuhi
  • Ramos, Francisco
  • Trilles, Sergio
Air pollution and its consequences are negatively impacting on the world population and the environment, which converts the monitoring and forecasting air quality techniques as essential tools to combat this problem. To predict air quality with maximum accuracy, along with the implemented models and the quantity of the data, it is crucial also to consider the dataset types. This study selected a set of research works in the field of air quality prediction and is concentrated on the exploration of the datasets utilised in them. The most significant findings of this research work are: (1) meteorological datasets were used in 94.6% of the papers leaving behind the rest of the datasets with a big difference, which is complemented with others, such as temporal data, spatial data, and so on; (2) the usage of various datasets combinations has been commenced since 2009; and (3) the utilisation of open data have been started since 2012, 32.3% of the studies used open data, and 63.4% of the studies did not provide the data.

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Self-Care and Health-Related Quality of Life in Patients with Drainage Enterostomy: A Multicenter, Cross Sectional Study

  • Collado-Boira, Eladio
  • Machancoses, Francisco H.
  • Folch Ayora, Ana
  • Salas-Medina, Pablo
  • Bernat-Adell, María Desamparados
  • Bernalte-Martí, Vicente
  • Temprado, María Dolores
The current article examined stoma self-care and health-related quality of life in patients with drainage enterostomy, described clinical and sociodemographic variables and analyzed the relationship between all of them. Trained interviewers collected data using a standardized form that queried sociodemographic and clinical variables. In addition, Self-Care (SC) was measured through a specific questionnaire for Ostomized Patients (CAESPO) and Health-Related Quality of Life (HRQoL) through the Stoma Quality of Life questionnaire (S-QoL), which are not included in the electronic medical record. This was a multicenter, cross sectional study conducted in four hospitals of the province of Castellon (Spain), where 139 participants were studied. As novel findings, it was found that the level of SC of the stoma was high and was positively correlated with health-related quality of life. In relation to SC and sociodemographic variables studied in the research, women, married patients and active workers presented significantly higher scores than the rest. In relation to the clinical variables, we highlight the highest scores of the autonomous patients in the care of their stoma and those who used irrigations regularly. The lowest scores were the patients with complications in their stoma. We can highlight the validity and reliability of the CAESPO scale for biomedical and social research, and the importance of skills related to self-care of ostomy patients for a good level of HRQoL.

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Implementing de U.N. Guiding Principles on business and human rights

  • Zamora Cabot, Francisco Javier
  • Heckendorn Urscheler, Lukas
  • De Dycker, Stephanie
Les Principes directeurs des Nations unies relatifs aux entreprises et aux droits de l’homme ont reçu beaucoup d’attention dans les milieux académique et politique. Le débat est particulièrement marqué par les acteurs de la protection des droits de l’homme. Il en est autrement en matière de droit international privé; prisme à travers lequel le sujet est relativement peu traité. Cet ouvrage s’est donné pour objectif de contribuer à ce débat naissant en Suisse et en Europe. A cette fin, il étudie l’impact des Principes directeurs des Nations unies dans le droit international privé en analysant les différentes approches adoptées par des ordres juridiques sélectionnés. Après une mise en perspective générale, il observe des expériences américaines et européennes. Il examine ensuite quelques cas et aspects controversés. Puis, l’ouvrage ouvre sa réflexion sur des évolutions futures, en Europe et en Suisse.

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Leading the curriculum towards social change: distributed leadership and the inclusive school

  • Traver-Martí, Joan Andrés
  • Ballesteros-Velázquez, Belén
  • Ozerinjauregi, Nagore
  • Cerezo Maiquez, María del Carmen
This study forms part of a participatory action research project, undertaken in four Spanish schools, analysing the planning and development of educational practices that link each school with its territory through community participation processes. The article describes how school leadership can help to develop participatory processes with the educational community in order to foster such practices. Multiple case study methodology was used. Information was gathered and analysed with qualitative research tools, including participant observation, interviews, discussion groups, documentary analysis and the researchers’ field diaries. Results show the importance and influence of the management team’s leadership style in facilitating and developing such practices, and reveal a need to move towards collaborative leadership models. The study also highlighted the importance of ensuring that families and students assume responsibility.

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Pest categorisation of tomato leaf curl New Delhi virus, Tomato leaf curl New Delhi virus: Pest categorisation

  • Bragard, Claude
  • Dehnen-Schmutz, Katharina
  • Di Serio, Francesco
  • Gonthier, Paolo
  • JACQUES, Marie-Agnès
  • Jaques , Josep A.
  • Justesen, Annemarie Fejer
  • MacLeod, Alan
  • Magnusson, Christer
  • Milonas, Panagiotis
  • Navas-Cortes, Juan A.
  • parnell, stephen
  • Potting, Roel
  • Reignault, Philippe
  • Thulke, Hans-Hermann
  • van der Werf, Wopke
  • Vicent, Antonio
  • Yuen, Jonathan
  • Zappalà, Lucia
  • Candresse, Thierry
  • CHATZIVASSILIOU, ELISAVET
  • Winter, Stephan
  • Bottex, Bernard
The EFSA Journal is a publication of the European Food Safety Authority, an agency of the European Union. Requestor: European Commission. Question number: EFSA‐Q‐2020‐00126, Following a request from the European Commission, the Panel on Plant Health performed a pest categorisation on tomato leaf curl New Delhi virus (ToLCNDV). ToLCNDV is a well-defined bipartite Begomovirus species, sometimes associated with satellite molecules. It is transmitted by Bemisia tabaci to a wide range of hosts. ToLCNDV is reported from Estonia, Greece, Italy, Portugal and Spain, with limited distribution. The prevalent strain (ToLCNDV-ES) in these countries is particularly adapted to cucurbits and is different from isolates reported outside the EU, which are better adapted to solanaceous crops and could therefore pose additional risk for EU agriculture. The virus is regulated under Commission Implementing Regulation (EU) 2019/2072. The main pathway of entry identified is plants for planting of susceptible hosts, even if entry could also occur via commodities carrying viruliferous B. tabaci and possibly by seeds. While establishment and local spread rely on B. tabaci, the virus can also be dispersed over long distances by movement of infected plants for planting. Establishment and spread are limited to regions with ecoclimatic conditions suitable for the establishment of vector populations (southern regions of Europe) or can occur as outbreaks wherever crops are grown under protected cultivation. The main uncertainties associated with this pest categorisation are the distribution and prevalence of ToLCNDV in the EU, the magnitude of the virus impact particularly on hosts different from Cucurbitaceae, and seed transmission. ToLCNDV meets all the criteria evaluated by EFSA to qualify as potential Union Quarantine Pest (QP); conversely, ToLCNDV does not meet the criterion of being widespread in the EU to qualify as a Regulated Non-Quarantine Pest (RNQP). Should new data show that ToLCNDV is widespread in the EU, the possibility would exist for non-EU isolates to qualify as QP, while ToLCNDV EU isolates (ToLCNDV-ES) could qualify as RNQP.

Proyecto: //

On Some Statistical Properties of the Spatio-Temporal Product Density, Sobre algunas propiedades estadísticas de la densidad producto espacio-temporal

  • Rodríguez-Berrio, Felipe
  • Rodríguez-Cortés, Francisco Javier
  • Mateu, Jorge
  • Adelfio, Giada
We present an extension of the non-parametric edge-corrected Ohser-type kernel estimator for the spatio-temporal product density function. We derive the mean and variance of the estimator and give a closed-form approximation for a spatio-temporal Poisson point process. Asymptotic properties of this second-order characteristic are derived, using an approach based on martingale theory. Taking advantage of the convergence to normality, confidence surfaces under the homogeneous Poisson process are built. A simulation study is presented to compare our approximation for the variance with Monte Carlo estimated values. Finally, we apply the resulting estimator and its properties to analyse the spatio-temporal distribution of the invasive meningococcal disease in the Rhineland Regional Council in Germany., En este artículo, presentamos un estimador para la función de densidad producto de un patrón de puntos en espacio-tiempo. Este estimador es una extensión del estimador no paramétrico de Ohser, el cuál está basado en una función Kernel y ponderado por un corrector de borde. Deducimos la media y la varianza del estimador y, a su vez, damos una aproximación analítica para el caso de un patrón Poisson (completamente aleatorio). Adicionalmente, estudiamos ciertas propiedades asintóticas de nuestro estimador utilizando un enfoque basado en la teoría de martingalas y construimos superficies de confianza para el caso de aleatoriedad completa. Presentamos un estudio de simulación para comparar nuestra aproximación de la varianza con los valores estimados a través del método Monte Carlo. Finalmente, utilizamos nuestro estimador para analizar la distribución espacio-temporal de los registros de una enfermedad meningocócica invasiva en la provincia del Rin en Alemania.

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Influencers in the Political Conversation on Twitter: Identifying Digital Authority with Big Data

  • Casero-Ripolles, Andreu
Interactivity is a defining characteristic of social media. Connections among users shape the network and have a direct impact on the political conversations that take place on digital platforms. In the hybrid media system, digital discussions can have an impact on both the agenda of mainstream media and the offline political life. In this context, determining who and how social influence is exercised is crucial. My objective is to identify the influencers with the greatest digital authority to guide and determine the political conversation on Twitter. For this, I have studied the process to form a Government in Spain. Machine learning techniques are used on a big data sample of 127.3 million tweets. The analysis is based on social network analysis and uses eigencentrality, a measure that determines the digital authority of users. This study focuses on the 250 accounts of the most prominent influencers. The results show that the political and media elites extend their leading roles as influencers in the digital environment. However, there is also evidence of the beginning of the breakdown of its monopoly on digital public debate and its opening to new social actors. Additionally, the data demonstrate the importance of the external socio-political context as a determining element of the exercise of social influence in the political conversation on Twitter.

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Influence of the Internet on Retailer's perceived quality in the generation of retailer's brand equity

  • Gallart Camahort, Valentín
  • Callarisa Fiol, Luis J.
  • Sanchez, Javier
This study analyses the relationship between the different components of the retailer's brand equity, as well as the influence that the use of internet has on the formation of retailer’s brand equity. As some authors point out, there is a need for a measure of the retailer's brand equity (Boo et al, 2008; Lee and Back, 2010). The model proposed to analyse retailer’s brand equity is based on the one used by Boo et al. (2008) who, in turn, start from the brand equity proposal of the authors Aaker (1991) and Keller (1993). A theoretical a priori model was specified according to the results in previous literature and our hypotheses. Prior to testing the model, the dimensionality of the scales was stablished with Confirmatory Factor Analyses (CFAs). Once the dimensionality was stablished, full structural equations model (SEM) was tested. This study provides evidences on the effect of the use of internet on retailer´s perceived quality. In turn, the influence that this variable has on the retailer's image and on its perceived value is shown. These relationships have an influence on consumer loyalty to the retailer, which, in turn, generates brand equity for the retailer.

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Pest categorisation of the non-EU phytoplasmas of Cydonia Mill., Fragaria L., Malus Mill., Prunus L., Pyrus L., Ribes L., Rubus L. and Vitis L

  • Bragard, Claude
  • Dehnen-Schmutz, Katharina
  • Gonthier, Paolo
  • Jaques , Josep A.
  • Justesen, Annemarie Fejer
  • MacLeod, Alan
  • Magnusson, Christer
  • Milonas, Panagiotis
  • Navas-Cortes, Juan A.
  • parnell, stephen
  • Potting, Roel
  • Reignault, Philippe
  • Thulke, Hans-Hermann
  • van der Werf, Wopke
  • Vicent, Antonio
  • Yuen, Jonathan
  • Zappalà, Lucia
  • Bosco, Dominico
  • Chiumenti, Michela
  • Di Serio, Francesco
  • Galetto, Luciana
  • Marzachi, Cristina
  • Pautasso, Marco
  • JACQUES, Marie-Agnès
Following a request from the European Commission, the EFSA Panel on Plant Health performed a pest categorisation of nine phytoplasmas of Cydonia Mill., Fragaria L., Malus Mill., Prunus L., Pyrus L., Ribes L., Rubus L. and Vitis L. (hereafter “host plants”) known to occur only outside the EU or having a limited presence in the EU. This opinion covers the (i) reference strains of ‘Candidatus Phytoplasma australiense’, ‘Ca. P. fraxini’, ‘Ca. P. hispanicum’, ‘Ca. P. trifolii’, ‘Ca. P. ziziphi’, (ii) related strains infecting the host plants of ‘Ca. P. aurantifolia’, ‘Ca. P. pruni’, and ‘Ca. P. pyri’, and (iii) an unclassified phytoplasma causing Buckland valley grapevine yellows. Phytoplasmas can be detected by available methods and are efficiently transmitted by vegetative propagation, with plants for planting acting as a major entry pathway and a long‐distance spread mechanism. Phytoplasmas are also transmitted in a persistent and propagative manner by some insect families of the Fulgoromorpha, Cicadomorpha and Sternorrhyncha (order Hemiptera). No transovarial, pollen or seed transmission has been reported. The natural host range of the categorised phytoplasmas varies from one to more than 90 plant species, thus increasing the possible entry pathways. The host plants are widely cultivated in the EU. All the categorised phytoplasmas can enter and spread through the trade of host plants for planting, and by vectors. Establishment of these phytoplasmas is not expected to be limited by EU environmental conditions. The introduction of these phytoplasmas in the EU would have an economic impact. There are measures to reduce the risk of entry, establishment, spread and impact. Uncertainties result from limited information on distribution, biology and epidemiology. All the phytoplasmas categorised here meet the criteria evaluated by EFSA to qualify as potential Union quarantine pests, and they do not qualify as potential regulated non‐quarantine pests, because they are non‐EU phytoplasmas.

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Encuentros con historia literaria (En Castellón, siglo XIX)

  • Fortuño Llorens, Santiago
En la mitad del siglo XIX, una joven poeta castellonense, Amalia Fenollosa, aglutina en su ciudad natal a un grupo de escritores e intelectuales, catalanes unos (con Joan Mañé i Flaquer contraerá matrimonio) y de distintas procedencias, aragonés, asturiano y salmantino, los otros. Se vive una situación histórica y política de banderías, ante la que algunos de ellos están comprometidos, sufren el destierro por su causa y lo testimonian en sus escritos. Presentamos una serie de cartas que tanto nos ayudan a descifrar sus obras cuanto rastrean las vivencias personales y afectivas entre ellos. Sus poemas, por su parte, transpiran sincera amistad, expresan las vivencias literarias y contribuyen a confirmar el estilo y tipología lírica de su época. En síntesis, unos encuentros fortuitos en el Castellón decimonónico redactaron un capítulo de la historia literaria., In the mid-nineteenth century, a young poetess from Castellón, Amalia Fenollosa, brought together a group of writers and intellectuals in her hometown, some of whom were Catalan (she will marry Joan Mañé i Flaquer), and others from different origins from Aragon, Asturias and Salamanca. Back then, there was a historical and political situation where faction-fighting was rife. Some were committed to faction-fighting, suffered exile for their cause and testified to it in their writings. This paper presents a series of different letters that both help to decode their works and trace the personal and affective experiences among them. Her poems, for their part, exude sincere friendship, express literary experiences and contribute to confirm the lyrical style and typology of the period she lived in. In short, fortuitous encounters in the 19th century Castellón produced a chapter in literary history.

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