Contribución al estudio de los hongos que fructifican sobre la familia "Pinaceae" (Gen. Pinus L.) en España (1ª aportación)

Se realiza un ensayo de trabajo para determinar ciertos grupos de hongos específicos o que muestren apetencia a fructificar sobre restos vegetales del género Pinus, introduciendo signos determinados para estos estudios. Resultan nuevas aportaciones al catálogo micológico español los ocho siguientes táxones: Ascobolus archeri, Coniophorella olivacea, Oidium candicans, Hyphoderma argillaceum, Hyphoderma pallidum, Hipochnicium eichleri, Galerina autumnalis y Galerina stylifera. De las cuales Ascobolus archeri es nueva cita para Europa.In order to determine wether there is any specific group of fungi able to fructify on plant debris from the genus Pinus L., a Sheme of work was made, introducing new signs for it. 8 new taxons are described, being a contribution to the Spanish mycological catalogue. The presence in Spain of Ascobolus archeri formely known only in Tasmania (Australia) should be pointed out

Effect of Sphaerosporella brunnea mycorrhizas on mycorrhization of Quercus ilex × Tuber melanosporum

It is generally accepted that Sphaerosporella brunnea is a significant ectomycorrhizal contaminant in nurseries producing plants mycorrhized with various species of Tuber, and subsequently in truffières after outplanting. At the University of Alcalá, Spain, 397 small plants of Quercus ilex which were mycorrhized with Tuber melanosporum were inadvertently contaminated with S. brunnea, and this contamination was then monitored for 2 years. Sixty percent of the plants were contaminated and had S. brunnea ascomata on the surface of the container on one or several occasions. However, a Spearman test provided no evidence that S. brunnea mycorrhizas affected T. melanosporum mycorrhization whereas other contaminating ectomycorrhizal fungi significantly did. Therefore, it appears that S. brunnea is not detrimental to plants which are well mycorrhized with T. melanosporum

Authoring Game-Based Adaptive Units of Learning with IMS Learning Design and <e-Adventure>

Burgos, D., Moreno-Ger, P., Sierra, J. L., Fernández Manjón, B., & Kooper, R. (2007). Authoring Game-Based Adaptive Units of Learning with IMS Learning Design and <e-Adventure>. International Journal of Learning Technology, 3(3), 252-268.Electronic games and simulations (eGames) are a valuable support for adaptive learning. This adaptation can be based on different inputs, such as the user´s performance, behaviour or cognitive load. Both adaptation and eGames can be modelled with IMS Learning Design or integrated from an external resource. In this article we show the relation between IMS Learning Design and the <e-Adventure> Project when it comes to authoring adaptive Units of Learning integrated with eGames. We first describe the challenges of this objective and the several different solutions on authoring and integration. We also describe the content-centered authoring approach in <e-Adventure>, and the need for a communication service with IMS LD that makes a bi-directional influence on the user’s adaptive learning experience. At the end, we describe a practical example that illustrates how an adaptive IMS LD Unit of Learning with an integrated <e-Adventure> eGame is developed.This paper is partially supported by the European projects TENCompetence (IST-TEL/2004-2.4.10, www.tencompetence.org) and ProLearn (IST 507310, www.prolearn-project.org), and the research group <e-Ucm> (www.e-ucm.es). The Education and Science Spanish Committee (projects MetaLearn TIN2004 08367 C02-02 and OdA Virtual TIN2005-08788-C04-01) and the Regional Government / Complutense University of Madrid (grant 4155/2005 and research group 910494) have also supported this work partially. Special thanks to Bruno Torijano Bueno for his participation in the creation and preliminary tests of the sample game

Sphaerosporella brunnea (Alb. et Schwein.) Svrcek et Kubicka, un discomicete con incidencia en la truficultura e interés forestal

Sphaerosporella brunnea (Alb. et Schwein.) Svrcek et Kubicka, a cup-shaped ascomycete related with truffle cultures and afforestation. A casual finding of Sphaerosporella brunnea in some greenhouses from Spain, growing in connection with several ectomycorrhizal plants, is reported. These plants were experimentally inoculated with low level inoculum of Tuber melanosporum. Sphaerosporella brunnea is described and illustrated, and its negative role in truffle cultures and its possible utilization in burned are as recovery is emphasized.Se da cuenta del hallazgo casual, en unos viveros españoles de Sphaerosporella brunnea, formando micorrizas con plantas diversas, las cuales habían sido inoculadas experimentalmente con niveles bajos de Tuber melanosporum. Se describe e ilustra esta especie, al tiempo que se destaca su papel negativo en la truficultura y su posible utilización en la recuperación de áreas incendiadas

Sphaerosporella brunnea (Alb. et Schwein.) Svrcek et Kubicka, un discomicete con incidencia en la truficultura e interés forestal

Se da cuenta del hallazgo casual, en unos viveros españoles de Sphaerosporella brunnea, formando micorrizas con plantas diversas, las cuales habían sido inoculadas experimentalmente con niveles bajos de Tuber melanosporum. Se describe e ilustra esta especie, al tiempo que se destaca su papel negativo en la truficultura y su posible utilización en la recuperación de áreas incendiadas.Sphaerosporella brunnea (Alb. et Schwein.) Svrcek et Kubicka, a cup-shaped ascomycete related with truffle cultures and afforestation. A casual finding of Sphaerosporella brunnea in some greenhouses from Spain, growing in connection with several ectomycorrhizal plants, is reported. These plants were experimentally inoculated with low level inoculum of Tuber melanosporum. Sphaerosporella brunnea is described and illustrated, and its negative role in truffle cultures and its possible utilization in burned are as recovery is emphasized

Occupational, Public and Environmental Radiological Impact Caused by the Phosphoric Acid Industry: The Case of Huelva (Spain)

The production of phosphate fertilizers usually uses as raw material sedimentary phosphate rock, which contains enhanced concentrations from U‐series radionuclides about 10–100 times higher than unperturbed soils. This fact implies the need for evaluating the radiological implications of this activity. In our case, the study has been performed in a large fertilizer industrial complex located at Huelva town (SW of Spain), where sedimentary phosphate rock has been processed since 1965 to 2010, generating annually an average of about 2.5 million tons of a by‐product called phosphogypsum (PG), which has been stored in big stacks 1 km away from Huelva city, covering 1000 ha. The fluxes of the radionuclides of interest along the production process and the effective doses received by the workers have been determined. In addition, the radioecological impact associated to the waste management strategy followed has been evaluated

Phosphogypsum Amendment Effect on Radionuclide Content in Drainage Water and Marsh Soils from Southwestern Spain

Phosphogypsum (PG) is a residue of the phosphate fertilizer industry that has relatively high concentrations of 226Ra and other radionuclides. Thus, it is interesting to study the effect of PG applied as a Ca amendment on the levels and behavior of radionuclides in agricultural soils. A study involving treatments with 13 and 26 Mg ha−1 of PG and 30 Mg ha−1 of manure was performed, measuring 226Ra and U isotopes in drainage water, soil, and plant samples. The PG used in the treatment had 510 ± 40 Bq kg−1 of 226Ra. The 226Ra concentrations in drainage waters from PG-amended plots were similar (between 2.6 and 7.2 mBq L−1) to that reported for noncontaminated waters. Although no significant effect due to PG was observed, the U concentrations in drainage waters (200 mBq L−1 for 238U) were one order of magnitude higher than those described in noncontaminated waters. This high content in U can be ascribed to desorption processes mainly related to the natural adsorbed pool in soil (25 Bq kg−1 of 238U). This is supported by the 234U to 238U isotopic ratio of 1.16 in drainage waters versus secular equilibrium in PG and P fertilizers. The progressive enrichment in 226Ra concentration in soils due to PG treatment cannot be concluded from our present data. This PG treatment does not determine any significant difference in 226Ra concentration in drainage waters or in plant material [cotton (Gossipium hirsutum L.) leaves]. No significant levels of radionuclides except 40K were found in the vegetal tissues.ENRESA AGF97-1102-CO2-01Comisión Interministerial de Ciencia y Tecnología (CICYT) AMB97-1720-C

Anomalías sinópticas y su relación con el incremento de granizo en 2006

Ponencia presentada en: VIII Congreso de la Asociación Española de Climatología celebrado en Salamanca entre el 25 y el 28 de septiembre de 2012.[ES]Las tormentas de granizo son uno de los riesgos meteorológicos más importantes del SW de Europa. Concretamente el Valle Medio del Ebro (VME) es el área que registra la mayor frecuencia de eventos de granizo de España, con unas pérdidas económicas de alrededor de 100 M€ anuales. El Grupo de Física de la Atmósfera (GFA) de la Universidad de León realiza campañas de investigación en el VME desde 2001 de forma continuada, registrando un promedio de 60 días de tormenta cada verano, mediante un radar meteorológico.[EN]Hailstorms are one of the principal risks in the SW of Europe. Specifically, the Mid-Ebro Valley (VME), is the area that has the greatest frequency of registered hail events in Spain, with economic losses of approximately 100 M€ annually. The Group for Atmospheric Physics (GFA) at the University of León has done research campaigns in the VME continuously since 2001, registering 60 storm days per year via meteorological radar.Este estudio ha sido financiado por los proyectos REN 2000-1210 CLI, REN 2003-09617-C02-01, CGL 2006-13372-C02-01, CGL 2010-15930 del Plan Nacional del I+D+i

Adaptive Units of Learning and Educational Videogames

In this paper, we propose three different ways of using IMS Learning Design to support online adaptive learning modules that include educational videogames. The first approach relies on IMS LD to support adaptation procedures where the educational games are considered as Learning Objects. These games can be included instead of traditional content to adapt the learning experience to the preferences of the student. In the second approach, the game engine supports the entire adaptation cycle, simply using IMS LD as a delivery mechanism for the packages containing the games. The learner profile is used to adapt the game, and the activity within the game is used to adjust the profile. Finally, the third approach stands between the other two, using IMS LD to model the general adaptation guidelines and then refining the adaptation inside the games. We illustrate these approaches with the &lt;e-Adventure&gt; educational game engine, which includes the mechanisms required to support these adaptation cycles.Editors: Daniel Burgos

Combining FTIR-ATR and OPLS-DA methods for magic mushrooms discrimination

Magic mushrooms are naturally occurring fungi that are considered hallucinogenic drugs because they contain psilocybin and psilocin. These substances are controlled in almost every country in the world, so the use, possession, cultivation, and sale of magic mushrooms are prohibited in whole or in part. Despite this, the abuse of magic mushrooms continues and can put at risk the life of the consumer and society in general if the consumer behaves in an unsafe manner. The number of mushroom species is very high, making it difficult to correctly identify them based only on physical and morphological characteristics. Therefore, there is a need to develop non-destructive mushrooms analysis methods that have less response time and higher discrimination ability. The present work used Attenuated Total Reflectance Fourier Transform Infrared (FTIR-ATR) Spectroscopy to study 64 mushroom samples from different genera including hallucinogenic, edible, and toxic species. In addition, this study used Orthogonal Partial Least Squares - Discriminant Analysis (OPLS-DA), using SIMCA chemometric software to analyse the obtained infrared (IR) spectra. The main molecular vibrations of the components of the fungus were successfully identified by IR spectroscopy. Although the specific bands corresponding to psilocybin or psilocin could not be assigned in the spectra, the regression method was able to discriminate the various species. Hallucinogenic mushrooms were well separated from other species, allowing the method to be used as an initial screening technique to determine whether or not the seized mushrooms are of forensic interest