Virtual Reference in Seville University Library: A shared experience.

Los servicios de referencia en las bibliotecas universitarias están lejos de desaparecer y las tecnologías, en este caso las de la web social, están facilitando e impulsando una cada vez más demandada referencia virtual, con aplicaciones al alcance de todos. LibraryH3lp es un software en código abierto, que ha permitido a la Biblioteca de la Universidad de Sevilla establecer un servicio de referencia virtual que comparten sus 19 bibliotecas de área, para atender preguntas generales o especializadas temáticas , así como las dudas sobre el uso de su catálogo Fama. Se presenta una primera valoración del servicio que se pondrá en completa explotación en este curso académico 2009‐2010. Palabras clave: Referencia virtual, Bibliotecas universitarias, software en cóigo abierto, LibraryH3lp, Biblioteca de la Universidad de SevillaReference services in academic libraries are far from dead and technologies of the social web are facilitating and encouraging an ever-increasing demand for virtual reference with applications available to everyone. The open source software LibraryH3lp has enabled the Library of the University of Seville to establish a virtual reference service shared among 19 libraries to answer common and specialized questions and explain the use of the Fama library catalog. We present a first assessment of the service that will go live in the academic year 2009-2010

Factores microclimáticos que afectan a la regeneración de Pinus pinaster Ait. en Tierra de Pinares (Segovia)

El objetivo de este estudio fue evaluar los factores micrometeorológicos que afectan a la regeneración del pino resinero en la Tierra de Pinares Segoviana. Se registró durante un período vegetativo completo la temperatura del suelo y la temperatura de la capa de aire más próximo al suelo. La temperatura del suelo alcanzó máximos de 56 ºC desde el mes de julio a septiembre, en períodos de más de 4 horas seguidas durante 2-5 días consecutivos y la temperatura del aire más próximo al suelo, donde viven las plántulas recién nacidas, alcanzó valores de hasta 56 ºC desde junio a septiembre, durante períodos de más de 4,5 horas en periodos de 7 días consecutivos. En las plántulas objeto de estudio se identificaron heridas en el cuello de la raíz lo que indica que las altas temperaturas producen cambios fisiológicos y morfológicos en las plántulas comprometiendo su supervivencia y la de la regeneración de estos montes. El análisis estadístico mostró que los puntos de muestreo seleccionados no presentaron grandes diferencias respecto a las variables microclimáticas consideradas

Pastoreo y regeneración: condicionantes a la gestión forestal. Caso del monte Cabeza de Hierro (Rascafría, Madrid)

El ganado silvestre o doméstico es un elemento esencial en gran parte de los sistemas forestales españoles, que puede llegar a condicionar en gran medida el funcionamiento de éstos. Se presenta la situación al respecto del monte “Cabeza de Hierro” (Rascafría, Madrid). Con 2016,5 ha, se trata de una masa de pino silvestre de origen natural con abundante melojo, de elevado valor económico y ecológico, sobre la que se realizan aprovechamientos maderables desde hace mucho tiempo. De titularidad privada y con servidumbre de pastos, históricamente ha soportado cargas elevadas de ganado doméstico, nunca gestionadas de modo sostenible. En la actualidad hay ganado vacuno y, en menor medida, caballar. A partir de un muestreo estratificado con afijación proporcional y 745 parcelas circulares repartidas sistemáticamente por el monte, se ha estimado la cantidad y viabilidad de la regeneración del pino silvestre, encontrando elevados daños por pastoreo. Se presenta también un ejemplo positivo de la influencia del pastoreo en el monte: tras haber resalveado hace cinco años un tallar de melojo, la viabilidad del rebrote en suelo es mínima debido al control realizado sobre el mismo por el ganado

Zooplankton distribution in a marine protected area: the Berlengas Natural Reserve (Western Coast of Portugal)

Zooplankton distribution in the Berlengas Natural Reserve (Portugal) was studied over a period of one year (February 2006 to February 2007). Monthly sampling was performed at 6 stations, differentiated according to depth and distance to the coastline. The aim of this study was to investigate the overall zooplankton variability through its different dimensions (space vs. time). The Partial Triadic Analysis (PTA) was used to study the spatial variability of the zooplankton community and its dynamics in time and the dynamic trajectories of the zooplankton species for each site. It was possible to distinguish a neritic-ocean gradient of the zooplankton composition and a temporal variability. Four distinct periods can be highlighted considering the distribution of the dates and the arrangement of the species: (i) the first one comprised August to November, (ii) the second one was related to June and July, (iii) the third one associated with spring (April and May) and, (iv) the latest one was related to winter (February, March and December 2006 and January and February 2007). The PTA method showed the similarities between the successive data tables and proved to be useful for investigating biotic structures and detecting spatial-temporal patterns in zooplankton distribution.publishe

Influence of road noise disturbances on black vulture nesting area: Case of "Cabeza de Hierro" state in Spanish Mediterranean Central Mountain

The real and potential road influence on soundscape is considered a relevant management aspect that can assess the negative effects of massive visitants on such sensitive species -that have been living for centuries in the area-. As a first approach to the study of human disturbances sound impact, acoustic engineering tools allow us to model noise pollution caused by the main road that crosses the state ?Cabeza de Hierro? (M-604). For these preliminary results we use the French method XPS 31-133, recommend at EU level. Noise emission levels in black vulture nesting area are analyzed to understand the influence of human activities on rural areas and road management on biodiversity conservation. This approach develops a useful tool to make compatible the public enjoyment of forest services such as recreation or landscape scenary, the conservation of biodiversity as well as a suitable social and economic activity level ?timber and firewood harvesting, industry?- at the region

Zooplankton distribution in a marine protected area: The Berlengas Natural Reserve, Western Coast of Portugal

Zooplankton distribution in the Berlengas Natural Reserve (Portugal) was studied over a period of one year (February 2006 to February 2007). Monthly sampling was performed at 6 stations, differentiated according to depth and distance to the coastline. The aim of this study was to investigate the overall zooplankton variability through its different dimensions (space vs. time). The Partial Triadic Analysis (PTA) was used to study the spatial variability of the zooplankton community and its dynamics in time and the dynamic trajectories of the zooplankton species for each site. It was possible to distinguish a neritic-ocean gradient of the zooplankton composition and a temporal variability. Four distinct periods can be highlighted considering the distribution of the dates and the arrangement of the species: (i) the first one comprised August to November, (ii) the second one was related to June and July, (iii) the third one associated with spring (April and May) and, (iv) the latest one was related to winter (February, March and December 2006 and January and February 2007). The PTA method showed the similarities between the successive data tables and proved to be useful for investigating biotic structures and detecting spatial-temporal patterns in zooplankton distribution.info:eu-repo/semantics/publishedVersio

Diagnostic and assessment of specific and transversal competences in Chemistry studies in a distance education program

[EN] The current socioeconomic conditions require highly educated professional with new curricula requirements and new skills, professionals with initiative and abilities able to be adapted to different situations and contexts. Consequently, the university education system must ensure that students achieve competences that involve the combination of knowledge, attitudes and values that enable a qualified person to undertake the resolution of problems or able to evolve in a new professional or social context. To achieve this goal, universities must find and use the most suitable tools to adapt and create higher education programs to respond to the needs of today’s society, tuning academic and professional profiles. On the other hand, there is a significant growth of enrolling students in distance education universities and several distance education programs are available in most universities. Thus, the aim of this communication is to share the results obtained during the development of a teaching innovation project, which assessed interdisciplinary, specific and transversal competences, by means of a post-task objective test, in the Chemistry undergraduate studies at the National University of Distance Education, (UNED) of Spain. The results of this study have allowed to the professors board to analyse and assess the competences acquired by the students, pointing out the main deficiencies to be solved by re-designing the teaching activities and methodologies to ensure a complete success.González-Gómez, D.; Gallego-Picó, A.; Garcinuño, RM.; Morcillo, MJ.; Durand, J.; Fernández, P. (2015). Diagnostic and assessment of specific and transversal competences in Chemistry studies in a distance education program. En 1ST INTERNATIONAL CONFERENCE ON HIGHER EDUCATION ADVANCES (HEAD' 15). Editorial Universitat Politècnica de València. 576-580. https://doi.org/10.4995/HEAd15.2015.31157658

Durum and Bread Wheat Flours. Preliminary Mineral Characterization and Its Potential Health Claims

Wheat is one of the most important cereals in terms of its role in the human diet. The distribution of the nutrients in wheat grains depends largely on their morphology, the bran fraction being the richest in minerals, thus developing important functions related to human health. The main purpose of this study was to point out the potential nutritional and health claims related to the mineral composition based on the current European legislation in order to valorize the interesting wheat varieties traditionally consumed in Spain. The mineral composition (microelements: Fe, Cu, Mn, and Zn; and macrolements: Ca, Mg, Na, and K) were evaluated in different milling fractions (white flour, whole grain flour, and bran fraction) of 4 wheat varieties of durum (Triticum turgidum ssp. durum Linnaeus) and bread (Triticum aestivum Linnaeus) wheat. As expected, the mineral concentration was higher in the case of bran and whole grain flour, K and Mg being the principal minerals found. A difference between wheat genotype and harvesting year have been found. Moreover, regarding these preliminary results, some samples analysed in the present study met the conditions of use of different approved health claims that could support the possibility to consider wheat flours, especially whole grain flour and bran fraction as functional foods, but some did not.Depto. de Nutrición y Ciencia de los AlimentosFac. de FarmaciaTRUESpanish Ministry of Science and Technology (project reference AGL2012-38345)ALIMNOVA research group (UCM 252/2017)pu

Técnicas de escalados multidimensionales aplicadas al fracaso del alumno en la asignatura de matemáticas empresariales

El propósito de este trabajo es realizar un análisis de las características personales y de formación previa que pueden influir en el fracaso del alumno en la asignatura de Matemáticas Empresariales. Para la realización del mismo, y dado que disponemos de un número importante de variables, trataremos de sintetizar esta información mediante la construcción de un mapa que sintetice la información, utilizando la técnica de los Escalados Multidimensionales.In this paper, we try to measure the effect of some variables about personal data and previous learning of students, in the probability to pass the first level of mathematics for Administration and Business. The multidimensional scaling approach is used in this paper to reduce the dimensionality of the observations

Investigating the potential of Sentinel-2 configuration to predict the quality of Mediterranean permanent grasslands in open woodlands

The assessment of pasture quality in permanent grasslands is essential for their conservation and management, as it can contribute to making real-time decisions for livestock management. In this study, we assessed the potential of Sentinel-2 configuration to predict forage quality in high diverse Mediterranean permanent grasslands of open woodlands. We evaluated the performance of Partial Least Squares Regression (PLS) models to predict crude protein (CP), neutral detergent fibre (NDF), acid detergent fibre (ADF) and enzyme digestibility of organic matter (EDOM) by using three different reflectance datasets: (i) laboratory measurements of reflectance of dry and ground pasture samples re-sampled to Sentinel-2 configuration (Spec-lab) (ii) field in-situ measurements of grasslands canopy reflectance resampled to Sentinel-2 configuration (Spec-field); (iii) and Bottom Of Atmosphere Sentinel-2 imagery. For the three reflectance datasets, the models to predict CP content showed moderate performance and predictive ability. Mean R2test = 0.68 were obtained using Spec-lab data, mean R2test decreased by 0.11 with Spec-field and by 0.18 when Sentinel-2 reflectance was used. Statistics for NDF showed worse predictions than those obtained for CP: predictions produced with Spec-lab showed mean R2test = 0.64 and mean RPDtest = 1.73. The mean values of R2test = 0.50 and RPDtest = 1.54 using Sentinel-2 BOA reflectance were marginally better than the values obtained with Spec-field (mean R2test = 0.48, mean RPDtest = 1.43). For ADF and EDOM, only predictions made with Spec-lab produced acceptable results. Bands from the red-edge region, especially band 5, and the SWIR regions showed the highest contribution to estimating CP and NDF. Bands 2, blue and 4, red also seem to be important. The implementation of field spectroscopy in combination with Sentinel-2 imagery proved to be feasible to produce forage quality maps and to develop larger datasets. This study contributes to increasing knowledge of the potential and applicability of Sentinel-2 to predict the quality of Mediterranean permanent grasslands in open woodlands