Evaluation for QR Codes in Environmental Museums

Presentación utilizada para el 11th World Conference on Educational Sciences.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Using network centrality measures to improve national journal classification lists

Proceedings of the 21st International Conference on Science and Technology Indicators (STI 2016). València (Spain), September 14-16, 2016.In countries like Denmark and Spain classified journal lists are now being produced and used in the calculation of nationwide performance indicators. As a result, Danish and Spanish scholars are advised to contribute to journals of high 'authority' (as in the former) or those within a high class (as in the latter). This can create a few problems. The aim of this paper is to analyse the potential use of network centrality measures to identify possible mismatches of journal categories. It analysis the Danish National Authority List and the Spanish CIRC Classification. Based on a sample of Library and Information Science publications, it analyses centrality measures that can assess on the importance of journals to given fields, correcting mismatches in these classifications. We conclude by emphasising the use of these measures to better calibrate journal classifications as we observe a general bias in these lists towards older journals. Centrality measures can allow to identify periphery-to-core journals' transitions.Nicolás Robinson-García is supported by a Juan de la Cierva-Formación Fellowship granted by the Spanish Ministry of Economy and Competitiveness

Locally optimal invariant detector for testing equality of two power spectral densities

This work addresses the problem of determining whether two multivariate random time series have the same power spectral density (PSD), which has applications, for instance, in physical-layer security and cognitive radio. Remarkably, existing detectors for this problem do not usually provide any kind of optimality. Thus, we study here the existence under the Gaussian assumption of optimal invariant detectors for this problem, proving that the uniformly most powerful invariant test (UMPIT) does not exist. Thus, focusing on close hypotheses, we show that the locally most powerful invariant test (LMPIT) only exists for univariate time series. In the multivariate case, we prove that the LMPIT does not exist. However, this proof suggests two LMPIT-inspired detectors, one of which outperforms previously proposed approaches, as computer simulations show.This work was partly supported by the Spanish MINECO grants OTOSIS (TEC2013-41718-R), COMONSENS Network (TEC2015-69648-REDC) and KERMES Network (TEC2016-81900-REDT/AEI); by the Spanish MINECO and the European Commission (ERDF) grants ADVENTURE (TEC2015-69868-C2-1-R), WINTER (TEC2016-76409-C2-2-R), CARMEN (TEC2016-75067-C4-4-R) and CAIMAN (TEC2017-86921-C2-1-R and TEC2017-86921-C2-2-R); by the Comunidad de Madrid grant CASI-CAM-CM (S2013/ICE-2845); by the Xunta de Galicia and ERDF grants GRC2013/009, R2014/037 and ED431G/04 (Agrupación Estratéxica Consolidada de Galicia accreditation 2016-2019); by the SODERCAN and ERDF grant CAIMAN (12.JU01.64661); and by the Research Council of Norway grant FRIPRO TOPPFORSK (250910/F20)

Testing equality of multiple power spectral density matrices

This paper studies the existence of optimal invariant detectors for determining whether P multivariate processes have the same power spectral density. This problem finds application in multiple fields, including physical layer security and cognitive radio. For Gaussian observations, we prove that the optimal invariant detector, i.e., the uniformly most powerful invariant test, does not exist. Additionally, we consider the challenging case of close hypotheses, where we study the existence of the locally most powerful invariant test (LMPIT). The LMPIT is obtained in the closed form only for univariate signals. In the multivariate case, it is shown that the LMPIT does not exist. However, the corresponding proof naturally suggests an LMPIT-inspired detector that outperforms previously proposed detectors.This work was partly supported by the Spanish MINECO grants COMONSENS Network (TEC2015-69648-REDC) and KERMES Network (TEC2016-81900-REDT/AEI); by the Spanish MINECO and the European Commission (ERDF) grants ADVENTURE (TEC2015-69868-C2-1- R), WINTER (TEC2016-76409-C2-2-R), CARMEN (TEC2016-75067-C4-4- R) and CAIMAN (TEC2017-86921-C2-1-R and TEC2017-86921-C2-2-R); by the Comunidad de Madrid grant CASI-CAM-CM (S2013/ICE-2845); by the Xunta de Galicia and ERDF grants GRC2013/009, R2014/037 and ED431G/04 (Agrupacion Estratexica Consolidada de Galicia accred- ´ itation 2016-2019); by the SODERCAN and ERDF grant CAIMAN (12.JU01.64661); and by the Research Council of Norway grant FRIPRO TOPPFORSK (250910/F20). This paper was presented in part at the 2018 IEEE International Conference on Acoustics, Speech and Signal Processing

Testing equality of multiple power spectral density matrices

This paper studies the existence of optimal invariant detectors for determining whether P multivariate processes have the same power spectral density. This problem finds application in multiple fields, including physical layer security and cognitive radio. For Gaussian observations, we prove that the optimal invariant detector, i.e., the uniformly most powerful invariant test, does not exist. Additionally, we consider the challenging case of close hypotheses, where we study the existence of the locally most powerful invariant test (LMPIT). The LMPIT is obtained in the closed form only for univariate signals. In the multivariate case, it is shown that the LMPIT does not exist. However, the corresponding proof naturally suggests an LMPIT-inspired detector that outperforms previously proposed detectors.Comunidad de Madrid | Ref. CASI-CAM-CM (S2013/ICE-2845)Research Council of Norway | Ref. FRIPRO TOPPFORSK (250910/F20)Ministerio de Economía y Competitividad | Ref. TEC2015-69648-REDCMinisterio de Economía y Competitividad | Ref. TEC2016-81900-REDT/AEIMinisterio de Economía y Competitividad | Ref. TEC2015-69868-C2-1-RAgencia Estatal de Investigación | Ref. TEC2016-76409-C2-2-RAgencia Estatal de Investigación | Ref. TEC2016-75067-C4-4-RAgencia Estatal de Investigación | Ref. TEC2017-86921-C2-1-RAgencia Estatal de Investigación | Ref. TEC2017-86921-C2-2-RXunta de Galicia | Ref. GRC2013/009Xunta de Galicia | Ref. GRC2013/009Xunta de Galicia | Ref. ED431G/0

Pathogenicity of avibacterium paragallinarum strains from Peru and the selection of candidate strains for an inactivated vaccine

Worldwide, Avibacterium paragallinarum is the aetiological agent of infectious coryza in poultry. Vaccines are the best means of control, helping reduce clinical signs and colonization of this bacterium. Most vaccines are based on international reference strains, or, lately, regional strains, but, generally, without any information regarding their virulence. The characterization of the pathogenicity of 24 Av. paragallinarum strains of the three Page serogroups, including four variant strains of serogroup B, all isolated from infectious coryza outbreaks in Peru, was performed. After experimental inoculation into the infraorbital sinuses, information regarding their capacity to induce infectious coryza typical clinical signs, spreading, and colonization was recorded. Furthermore, after intraperitoneal inoculation, septicaemia and death were registered. Differences among strains in these parameters were observed, even within strains from the same serogroup. Finally, the four most pathogenic strains, one from each serogroup, were chosen to formulate an experimental vaccine that was tested successfully against homologous challenges in reducing clinical signs and colonization in vaccinated birds compared to unvaccinated ones. This is the first time that Av. paragallinarum strains from Peru were studied thoroughly for their virulence in a search for improving vaccine formulation.EEA BalcarceFil: Caballero Garcia, Melanie. Quimtia. Research and Development; Perú.Fil: Mendoza Espinoza, Alfredo. Quimtia. Research and Development; Perú.Fil: Ascanio, Silvia. Quimtia. Research and Development; Perú.Fil: Chero, Paula. Quimtia. Research and Development; Perú.Fil: Rojas, Rober. Quimtia. Research and Development; Perú.Fil: Huberman, Yosef Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina

Oral mucosal peeling related to dentifrices and mouthwashes : a systematic review

The aim of this systematic review was to summarise the clinical information available about oral mucosal peeling (OMP) and to explore its aetiopathogenic association with dentifrices and mouthwashes. PICOS outline: Population: subjects diagnosed clinically and/or pathologically. Intervention: exposition to oral hygiene products. Comparisons: patients using products at different concentrations. Outcomes: clinicopathological outcomes (primary) and oral epithelial desquamation (secondary) after use. Study design: any. Exclusion criteria: reports on secondary or unpublished data, in vitro studies. Data were independently extracted by two reviewers. Fifteen reports were selected from 410 identified. Descriptive studies mainly showed low bias risk, experimental studies mostly an ?unclear risk?. Dentifrices or mouthwashes were linked to OMP, with an unknown origin in 5 subjects. Sodium lauryl-sulphate (SLS) was behind this disorder in 21 subjects, tartar-control dentifrices in 2, and flavouring agents in 1 case. Desquamation extension was linked to SLS concentration. Most cases were painless, leaving normal mucosa after desquamation. Tartar-control dentifrices caused ulcerations more frequently. OMP management should consider differential diagnosis with oral desquamative lesions, particularly desquamative gingivitis, with a guided clinical interview together with pathological confirmation while discouraging the use of the product responsible for OMP

Magnetic Resonance Imaging, texture analysis and regression techniques to non-destructively predict the quality characteristics of meat pieces

The quality of meat products is traditionally assessed by chemical or sensorial analysis, which are time consuming, need specialized technicians and destroy the products. The development of new technologies to monitor meat pieces using non-destructive methods in order to establish their quality is earning importance in the last years. An increasing number of studies have been carried out on meat pieces combining Magnetic Resonance Imaging (MRI), texture descriptors and regression techniques to predict several physico-chemical or sensorial attributes of the meat, mainly different types of pig ham and loins. In spite of the importance of the problem, the conclusions of these works are still preliminary because they only use the most classical texture descriptors and regressors instead of stronger methods, and because the methodology used to measure the performance is optimistic. In this work, we test a wide range of texture analysis techniques and regression methods using a realistic methodology to predict several physico-chemical and sensorial attributes of different meat pieces of Iberian pigs. The texture descriptors include statistical techniques, like Haralick descriptors, local binary patterns, fractal features and frequential descriptors, like Gabor or wavelet features. The regression techniques include linear regressors, neural networks, deep learning, support vector machines, regression trees, ensembles, boosting machines and random forests, among others. We developed experiments using 15 texture feature vectors, 28 regressors over 4 datasets of Iberian pig meat pieces to predict 39 physico-chemical and sensorial attributes, summarizing16,380 experiments. There is not any combination of texture vector and regressor which provides the best result for all attributes tested. Nevertheless, all these experiments provided the following conclusions: (1) the regressor performance, measured using the squared correlation (R2), is from good to excellent (above 0.5625) for 29 out of 39 attributes tested; (2) the WAPE (Weighted Absolute Percent Error) is lower than 2% for 32 out of 37 attributes; (3) the dispersion in computer predictions around the true attributes is lower or similar than the dispersion in the labeling expert’s for the majority of attributes (85%); and (4) differences between predicted and true values are not statistically significant for 29 out of 37 attributes using the Wilcoxon ranksum statistical test. We can conclude that these results provide a high reliability for an automatic system to predict the quality of meat pieces, which may operate on-line in the meat industries in the futureThe authors wish to acknowledge the funding received from the FEDER-MICCIN Infrastructure Research Project (UNEX-10-1E-402), Junta de Extremadura economic support for research group (GRU15173 and GRU15113), from the Xunta de Galicia (Centro singular de investigación de Galicia accreditation 2016–2019) and from the European Union (European Regional Development Fund — ERDF)S

Desarrollo de procedimientos y técnicas contra Sistemas Aéreos No Tripulados

En la actualidad, en comparación con la última década, el uso de sistemas aéreos no tripulados ha aumentado de forma exponencial. Estos se encuentran al alcance de cualquier usuario debido a la gran oferta en el mercado. Tampoco facilita el control de los mismos su bajo coste y la posibilidad de poder comprarlos sin ningún tipo de licencia.Además, se han aprovechado de estas nuevas tecnologías para emplearlas con fines hostiles o maliciosos los agentes estatales y no estatales. Estos sistemas aéreos no tripulados de pequeño tamaño, que vuelan a baja altura, son difíciles de identificar, detectar y neutralizar por los medios actuales de Defensa Aérea. Debido a esto, suponen una gran amenaza para nuestras FAS, tanto en territorio nacional como para las tropas desplegadas en misiones en el exterior, así como para el resto de los ciudadanos.Nos estamos enfrentando a una amenaza para la seguridad, es por ello la importancia de este trabajo, en el cual, analizando el estado del arte tanto de los sistemas aéreos no tripulados como de sus contramedidas, se propondrán unos procedimientos y técnicas para enfrentarse a esa amenaza.<br /

Influence of context on teaching interests of future teachers in Physical Education specialists

The present study analyse the influence that has to deal the subject of Sports School Initiation, of third course of Teaching studies of the speciality of Physical Education in the interests of the pupils before and after the same one. For it, there have taken part in the study 46 pupils whom a questionnaire spends autocompleted, in that they must demonstrate their interest on 22 items related to this subject. The Factor Analysis realized, indicates that the interests of the student before and after passing for the subject gather in crowds in a different way. The data, allow to observe an evolution in the students factor scheme from the beginning until the end of their relation with this subject. The found results allow to identify the effect that has to deal a subject on the interests of the students and the most attractive subject matters according to their criterion.El presente trabajo analiza la influencia que tiene cursar la asignatura de Iniciación Deportiva Escolar, del tercer curso de Magisterio de la especialidad de Educación Física, en los intereses de los alumnos antes y después de la misma. Para ello, han participado en el estudio 46 alumnos/as a los que se les pasa un cuestionario autocumplimentado en el que deben manifestar su interés sobre 22 ítems relacionados con esa asignatura. El análisis factorial realizado indica que los intereses del alumnado antes y después de pasar por la asignatura se agrupan de manera diferente. Los datos permiten observar una evolución en el esquema factorial del alumnado desde el inicio hasta el final de su relación con esa asignatura. Los resultados hallados permiten identificar el efecto que tiene cursar una asignatura sobre los intereses de los estudiantes y las temáticas más atractivas según su criterio