152 research outputs found
Different bat detectors and processing software… Same results?
There has been an increase in commercial bat detectors and noise filtering software for monitoring bat activity. In this study, we compare the recording efficiency of three bat detectors from the popular brand Wildlife Acoustics (Echo Meter 3, Echo Meter Touch Pro 1 and Song Meter 2 BAT) and the effectiveness of two noise filtering software (Kaleidoscope and SonoBat Batch Scrubber). To do so, we recorded 7513 files from 13 urban parks in Madrid in 2017, that were manually identified to species level. The results show that the Echo Meter 3 records significantly less activity than the Echo Meter Touch Pro 1 and Song Meter 2 BAT. Our results also identify SonoBat Batch Scrubber as more reliable than Kaleidoscope for preventing false negatives. Therefore, our study demonstrates that different bat detectors, and different noise filtering software, can provide different results
Structural characterization and colour of MgxCu3-xV2O8 (0<=x<=3) and MgyCu2-yV2O7 (0<=y<=2) compositions
In this study, MgxCu3-xV2O8 (0 ≤ x ≤ 3) and MgyCu2-yV2O7 (0 ≤ y ≤ 2) compositions were synthesized by the
chemical coprecipitation method and characterized by X-ray diffraction, UV–vis-NIR spectroscopy and CIE L* a* b*
parameters measurements. Melting points of compounds Cu3V2O8 and Cu2V2O7 are 780°C and 790°C, respectively.
The addition of small amounts of Mg (II), MgxCu3-xV2O8 (x < 1.0) and MgyCu2-yV2O7 (y < 0.5) fused compositions,
was not sufficient to stabilize structures at 800°C. For the Mg2CuV2O8 (x = 2.0) composition fired at 800°C, Mg (II)
incorporated into the monoclinic Cu3V2O8 structure stabilizes this crystalline phase. At 1000°C, orthorhombic
Mg3V2O8 structure from this composition was obtained. Solid solutions with orthorhombic symmetry were detected
from the prepared compositions fired at 1000°C when 1.0 ≤ x ≤ 3.0. The difference of coloration of Cu, Mg vanadates
might be explained by the presence of a strong charge transfer band in visible spectra
Las adaptaciones de «Tirant lo Blanc» al cómic
El presente artículo recoge información sobre las diferentes adaptaciones de Tirant lo Blanc al cómic que se han publicadohasta la fecha, aportando un análisis de las mismas enfocado principalmente a establecer el modo en cada unade ellas se relaciona con la fuente original: la novela. Al mismo tiempo se realiza una aproximación a las diferentespoéticas visuales y a las características de edición que ofrecen dichas reescrituras. El estudio no pretende entrar envaloraciones sobre la pertinencia o no pertinencia de las adaptaciones de los clásicos literarios al cómic, ni tampococalibrar o establecer cuáles serían sus posibles intereses didácticos, sino indagar hasta qué punto el recorrido intermedialtebeístico de Tirant lo Blanc ha podido contribuir al lugar que ocupa la obra de Martorell dentro del imaginariocolectivo de la actual sociedad globalizada
Modelización de la riqueza de aves mediante redes neuronales para la gestión forestal a escala de paisaje
For preserving biodiversity of European-Mediterranean forest ecosystems in current and future scenarios of global change by means of sustainable forest management it is necessary to determine how environment and forest characteristics correlate with biodiversity. For this purpose, neural networks were used to model forest bird species richness as a function of environment and forest structure and composition at the 1x1 km scale in Catalonia (NE Spain). Univariate and multivariate models respectively allowed exploring individual variable response and obtaining a parsimonious (ecologically meaningful) and accurate neural network. Forest area (with a canopy cover above 5%), mean forest canopy cover, mean annual temperature and summer precipitation were the best predictors of forest bird species richness. The resultant multivariate network had a good generalization capacity that failed however in the locations with highest species richness. Additionally, those forests with different degrees of canopy closure that were more mature and presented a more diverse tree species composition were also associated with higher bird species richness. This allowed us to provide management guidelines for forest planning in order to promote avian diversity in this European-Mediterranean region.Para preservar la biodiversidad de los ecosistemas forestales de la Europa mediterránea en escenarios actuales y futuros de cambio global mediante una gestión forestal sostenible es necesario determinar cómo influye el medio ambiente y las propias características de los bosques sobre la biodiversidad que éstos albergan. Con este propósito, se analizó la influencia de diferentes factores ambientales y de estructura y composición del bosque sobre la riqueza de aves forestales a escala 1x1 km en Cataluña (NE de España). Se construyeron modelos univariantes y multivariantes de redes neuronales para respectivamente explorar la respuesta individual a las variables y obtener un modelo parsimonioso (ecológicamente interpretable) y preciso. La superficie de bosque (con una fracción de cabida cubierta superior a 5%), la fracción de cabida cubierta media, la temperatura anual y la precipitación estival medias fueron los mejores predictores de la riqueza de aves forestales. La red neuronal multivariante obtenida tuvo una buena capacidad de generalización salvo en las localidades con una mayor riqueza. Además, los bosques con diferentes grados de apertura del dosel arbóreo, más maduros y más diversos en cuanto a su composición de especies arbóreas se asociaron de forma positiva con una mayor riqueza de aves forestales. Finalmente, se proporcionan directrices de gestión para la planificación forestal que permitan promover la diversidad ornítica en esta región de la Europa mediterránea
Cobalt Minimisation in Violet Co3P2O8 Pigment
This study considers the limitations of cobalt violet orthophosphate, Co3P2O8, in the ceramic industry due to its large amount of cobalt. MgxCo3−xP2O8 (0 ≤ x ≤ 3) solid solutions with the stable Co3P2O8 structure were synthesised via the chemical coprecipitation method. The formation of solid solutions between the isostructural Co3P2O8 and Mg3P2O8 compounds decreased the toxically large amount of cobalt in this inorganic pigment and increased the melting point to a temperature higher than 1200 °C when x ≥ 1.5. Co3P2O8 melted at 1160 °C, and compositions with x ≥ 1.5 were stable between 800 and 1200 °C. The substitution of Co(II) with Mg(II) decreased the toxicity of these materials and decreased their price; hence, the interest of these materials for the ceramic industry is greater. An interesting purple colour with a* = 31.6 and b* = −24.2 was obtained from a powdered Mg2.5Co0.5P2O8 composition fired at 1200 °C. It considerably reduced the amount of cobalt, thus improving the colour of the Co3P2O8 pigment (a* = 16.2 and b* = −20.1 at 1000 °C). Co3P2O8 is classified as an inorganic pigment (DCMA-8-11-1), and the solid solutions prepared were also inorganic pigments when unglazed. When introducing 3% of the sample (pigment) together with enamel, spreading the mixture on a ceramic support and calcining the whole in an electric oven, a colour change from violet to blue was observed due to the change in the local environment of Co(II), which could be seen in the UVV spectra of the glazed samples with the displacement of the bands towards higher wavelengths and with the appearance of a new band assigned to tetrahedral Co(II). This blue colour was also obtained with Co2SiO4, MgCoSiO4 or Co3P2O8 pigments containing a greater amount of cobalt
Hipertext de Psicologia i comunicació publicitària en clau ECTS
El treball, de caire interdepartamental, s'emmarca en la docència de les matèries de Psicologia en els estudis de Publicitat i Relacions Públiques, i en la docència de les matèries de Publicitat en les estudis de Psicologia.L'adaptació de la titulació de Publicitat i Relacions Públiques als ECTS ens serveix de punt de partida per a la creació d'un hipertex. L'estructura de l'hipertext especifica els coneixements que l'estudiant ha d'aprendre i les competències que desenvoluparà. L'apartat de pràctiques permet als estudiants familiaritzar-se i aplicar els continguts apresos a la pràctica professional. Els diferents exercicis d'avaluació proposats i el contingut desenvolupat ajuden a l'estudiant a realitzar un treball d'anàlisi i síntesi de la informació
Green and blue materials for the ceramic industry from pink MgCoxNi1-xSiO4 (0 ≤ x ≤ 1) solid solutions
In this study, MgCoxNi1-xSiO4 (0.0 ≤ x ≤ 1.0) solid solutions with an olivine structure were synthetized via the chemical coprecipitation method and materials with a smaller M(II) (M = Co, Ni) amount than Co2SiO4 and Ni2SiO4 compounds were obtained. At 1200 °C, the Co(II) and Ni(II) were randomly distributed in the MgCoxNi1-xSiO4 (0.0 ≤ x ≤ 1.0) solid solutions with the olivine structure, but the occupation of Co(II) and Ni(II) ions in M1 (4a) octahedral sites was obtained at a higher level than in M2 (4c) octahedral sites. The Mg(II) ions prefer the M2 sites. This preference explains the main contribution of the M1 sites in spectra of octahedral Co(II) ions and the M1-O and M2-O distances jointly explain the pink colour of the MgCoxNi1-xSiO4 (0.0 ≤ x ≤ 1.0) solid solutions, while the colour of Co2SiO4 is blue. Spectra can be interpreted as the sum of Ni(II) and Co(II) ions in octahedral sites. When these solid solutions are enamelled, the pink colouring changes to green or blue because of the presence of tetrahedral Co(II).Funding for open access charge: CRUE-Universitat Jaume
Parameterization of the Construction Promoter\u27s Responsibilities throughout the project\u27s life cycle
Europe, and especially Spain has been suffering an ongoing
economic, social and political crisis. The construction
industry sector has been one of the most affected.
Project Management professionals in the construction industry
are obliged to make a critical analysis of their results and methodology
applications used in recent years.
In this paper a methodology has been developed for parameterization
and monitoring of projects, portfolios and programs
from both the public or private Construction Promoter\u27s point of
view -the real engine of the project-. This methodology analyses
their responsibilities and those of the stakeholders throughout
the project\u27s lifecycle, and allows the Promoter to make decisions
based on accurate, realistic and factual knowledge.
The project\u27s full data is completely accessible by the Promoter.
Thus the Promoter is able to develop a Project Portfolio
Management and Business Intelligence.
The Next step in the methodology evolution is transferring it to
an ICT tool, for a promoter\u27s systematic application.
Project management will assist in providing a social improvement,
this method is associated with current social demands
at all levels and sectors -Transparency- thus allowing realtime
monitoring of the building project\u27s status throughout all
stages of the project\u27s life cycle
- …