Search results for "impact"
showing 10 items of 1703 documents
Teaching of energy issues: A debate proposal for a global reorientatiom
2007
The growing awareness of serious difficulties in the learning of energy issues has produced a great deal of research, most of which is focused on specific conceptual aspects. In our opinion, the difficulties pointed out in the literature are interrelated and connected to other aspects (conceptual as well as procedural and axiological), which are not sufficiently taken into account in previous research. This paper aims to carry out a global analysis in order to avoid the more limited approaches that deal only with individual aspects. From this global analysis we have outlined 24 propositions that are put forward for debate to lay the foundations for a profound reorientation of the teaching o…
Presence and biodistribution of perfluorooctanoic acid (PFOA) in Paracentrotus lividus highlight its potential application for environmental biomonit…
2021
AbstractThe first determination of presence and biodistribution of PFOA in ninety specimens of sea urchin Paracentrotus lividus from two differently contaminated sites along Palermo’s coastline (Sicily) is reported. Analyses were performed on the sea urchins’ coelomic fluids, coelomocytes, gonads or mixed organs, as well as on seawater and Posidonia oceanica leaves samples from the collection sites. PFOA concentration ranged between 1 and 13 ng/L in seawater and between 0 and 794 ng/g in P. oceanica. The analyses carried out on individuals of P. lividus from the least polluted site (A) showed PFOA median values equal to 0 in all the matrices (coelomic fluid, coelomocytes and gonads). Conver…
Investigación pediátrica española financiada: contribución de Anales de Pediatría a su difusión
2017
Resumen: Objetivo: Identificar la investigación pediátrica española financiada publicada en revistas generales pediátricas incluidas en la WoS (2010-2014) y la de Anales de Pediatría (AP). Explorar la relación de la financiación con el prestigio de las revistas y describir sus condiciones para cumplir los mandatos de acceso abierto. Material y método: La financiación de los artículos publicados en revistas pediátricas generales se identificó utilizando el campo Agencia Financiadora de la WoS y revisando el documento original para AP. Para AP se identificaron las entidades financiadoras de los AF y se valoró la diferencia en la citación de los AF y los no financiados mediante test no paramét…
Impacto científico y contextualización bibliométrica de la Pediatría respecto a otras áreas temáticas
2020
[EN]: [Introduction] The purpose of this paper is twofold. On the one hand, to identify and characterise the indicators of production, citation, impact and collaboration of the Pediatrics area of the Journal Citation Reports, and on the other, to place the journal Anales de Pediatría in the context of the Spanish journals of another twenty areas and medical specialties. [Material and Method] The sources of information used to obtain the indicators were Science Citation Index- Expanded, Journal Citation Reports and Scimago Journal & Country Rank. A regression analysis was performed to check the correlation between the citation and other variables. [Results] Pediatrics ranked 8th in scientifi…
Impacto científico y contextualización bibliométrica de la Pediatría respecto a otras áreas temáticas
2020
[ES] Introducción El objetivo de este trabajo es doble. Por una parte, identificar y caracterizar los indicadores de producción, citación, impacto y colaboración del área Pediatrics del Journal Citation Reports, y por otra, estudiar a la revista Anales de Pediatría en el contexto de las revistas españolas de otras 20 áreas y especialidades médicas. Material y método Las fuentes de información utilizadas para la obtención de los indicadores fueron Science Citation Index-Expanded, Journal Citation Reports y Scimago Journal & Country Rank. Se realizó un análisis de regresión para comprobar la correlación entre la citación y otras variables. Resultados Pediatrics ocupó el 8.o lugar en producció…
Developing the RIAM method (rapid impact assessment matrix) in the context of impact significance assessment
2010
Abstract In this paper the applicability of the RIAM method (rapid impact assessment matrix) is evaluated in the context of impact significance assessment. The methodological issues considered in the study are: 1) to test the possibilities of enlarging the scoring system used in the method, and 2) to compare the significance classifications of RIAM and unaided decision-making to estimate the consistency between these methods. The data used consisted of projects for which funding had been applied for via the European Union's Regional Development Trust in the area of Central Finland. Cases were evaluated with respect to their environmental, social and economic impacts using an assessment pane…
First Life Cycle Impact Considerations of Two Wave Energy Converters
2018
The work presents two different revolutionary devices for the utilization of a new entry of renewable energy sources: sea wave. The first technology is based on linear generators, able to directly converts a linear motion into electrical output, limiting to minimum the chain of energy conversion. The other solution is based on a mechanical motion converter, coupled with alternators. The scope of this paper is to compare the two different systems designed by University of Palermo, through Life Cycle Assessment, in order to evaluate the global effects of the two systems to the environment.
In the Eye of the Beholder: How Regulatory Focus and Self-Efficacy Interact in Influencing Opportunity Recognition
2012
Although there is evidence that regulatory focus is associated with opportunity exploitation, there is a lack of research examining its role at the early stages of opportunity recognition. The present study makes two major contributions to address this gap. First, we demonstrate that entrepreneurs' promotion focus is positively related to opportunity recognition, whereas prevention focus is not significantly related to opportunity recognition. Second, integrating two theories of self-regulation – regulatory focus theory and self-efficacy theory – our findings reveal that a high promotion focus compensates for entrepreneurs' low levels of creative and entrepreneurial self-efficacy in opportu…
The Hydrothermal System of Solfatara Crater (Campi Flegrei, Italy) Inferred From Machine Learning Algorithms
2019
Two machine learning algorithms were applied to three multivariate datasets acquired at Solfatara volcano. Our aim was to find an unbiased and coherent synthesis among the large amount of data acquired within the crater and along two orthogonal vertical NNE- and WNW-trending cross-sections. The first algorithm includes a new approach for a soft K-means clustering based on the use of the silhouette index to control the color palette of the clusters. The second algorithm which uses the self-organizing maps incorporates an alternative method for choosing the number of nodes of the neural network which aims to avoid the need for downstream clustering of the results of the classification. Both m…
Editorial issue 2
2018
It has been a very long trip since I wrote my last editorial. The first issue of the Journal received a strong welcome from all over the world in the beginning of 2016, but there was something missing that drove us to a winding road that ended in an even stronger situation: the support of the University of Valencia’s Publication Service (UVPS). The missing thing in the first issue was the DOI (Digital Object Identifier). All the online journals have a DOI to identify the papers and allow a permanent link to them. Each DOI is unique for each paper. We look for a DOI provider in our environment and found the UVPS to offer DOIs for free to their teachers. As I am one of them, I went to ask for…