Contenido polínico de algunas plantas entomófilas ornamentales en la atmósfera de Salamanca

XV lnternational A.P.L.E. Symposium of Palynolog

Estudio aeropalinológico de la familia Oleaceae en la atmósfera de Salamanca (1995-2003)

XV lnternational A.P.L.E. Symposium of Palynolog

Musical Heritage as a Means of Sustainable Development: Perceptions in Students Studying for a Degree in Primary Education

Education is an essential vehicle for valuing cultural legacy, and musical heritage is a part of that cultural legacy that we must protect as it is one of the main areas of intangible cultural heritage, a reflection of cultural diversity, and a conveyor of meaning, and social, cultural, and economic values contributing to sustainable development. The purpose of this study, therefore, is to evaluate the perception students studying for the Degree in Primary Education at the University of Zaragoza and the Autonomous University of Madrid have of the value, significance, and importance of the sustainability of musical cultural heritage. This non-experimental and descriptive research is based on the statistical descriptive method, with a sample of n = 202 preservice teachers. A questionnaire consisting of fifteen items was designed and validated as a data collection instrument. The data analysis shows differences in the analyzed categories and points to the need to take action to solve them. It also reveals the importance students attach to musical cultural heritage, to including it in the curricula of the various educational stages, and to the need to protect it as an essential requirement for sustainable development

Solar Atmospheric Heating Due to Small-scale Events in an Emerging Flux Region

We investigate the thermal, kinematic and magnetic structure of small-scale heating events in an emerging flux region (EFR). We use high-resolution multi-line observations (including Ca II 8542~\AA, Ca II K, and Fe I 6301~\AA line pair) of an EFR located close to the disk center from the CRISP and CHROMIS instruments at the Swedish 1-m Solar Telescope. We perform non-LTE inversions of multiple spectral lines to infer the temperature, velocity, and magnetic field structure of the heating events. Additionally, we use the data-driven Coronal Global Evolutionary Model to simulate the evolution of the 3D magnetic field configuration above the events and understand their dynamics. Furthermore, we analyze the differential emission measure to gain insights into the heating of the coronal plasma in the EFR. Our analysis reveals the presence of numerous small-scale heating events in the EFR, primarily located at polarity inversion lines of bipolar structures. These events not only heat the lower atmosphere but also significantly heat the corona. The data-driven simulations, along with the observed enhancement of currents and Poynting flux, suggest that magnetic reconnection in the lower atmosphere is likely responsible for the observed heating at these sites.Comment: 20 pages, 15 figures, accepted for publication in the Ap

Aplicación de las Nuevas Tecnologías GPS-GPRS para el estudio del comportamiento y mejora de la producción de la raza de lidia

La dehesa es un ecosistema agroforestal único que aúna un óptimo rendimiento económico con una menor incidencia en el medio. En la Península Ibérica hay unas 500.000 hectáreas de dehesas concentradas en Andalucía, Castilla y León, Extremadura, Castilla La Mancha y Madrid. La raza de Lidia es, dentro de las razas autóctonas, por su rusticidad y adaptación, una de las que mejor aprovechan y conservan la dehesa. Las condiciones de cría en grandes fincas (400-500 hectáreas de media), el espacio por cabeza (entre una y seis hectáreas por animal), la movilidad que le da su menor tamaño con respecto a otras razas y su crecimiento en libertad con mínima presencia humana la ha hecho indispensables para el mantenimiento del ecosistema de la dehesa. Con este trabajo pretendemos aplicar una tecnología innovadora como es el GPS-GPRS a la monitorización de la etología del ganado de la raza de Lidia durante todos los periodos de su vida y especialmente en aquellos momentos en los que el animal se ve sometido a diferentes prácticas de manejo. Para ello, se implementará la tecnología de GPS que permite el posicionamiento relativo de un objetivo mediante la captación de la señal de diferentes satélites específicos, lo que proporcionará información precisa sobre: el desplazamiento del ganado en un periodo determinado, las distancias recorridas, el territorio pastoreado, las áreas más querenciosas, su ritmo circadiano, las pautas de comportamiento, etc. Así mismo, el dispositivo incorporará sensores de parámetros biológicos como la temperatura ó el ritmo cardíaco, etc. La implementación de este sistema permitirá, a través del posicionamiento, realizar la óptima gestión de los recursos pastables de la dehesa, permitiendo ahorrar costes en alimentación, infraestructuras y personal, y ofrecer, en un futuro cercano, una atractiva herramienta al ganadero para realizar el control remoto de sus reses

Spectropolarimetric Inversions of the Ca ii 8542 Å Line in an M-class Solar Flare

We study the M1.9 class solar flare SOL2015-09-27T10:40 UT using high-resolution full-Stokes imaging spectropolarimetry of the Ca ii 8542 {\AA} line obtained with the CRISP imaging spectropolarimeter at the Swedish 1-m Solar Telescope. Spectropolarimetric inversions using the non-LTE code NICOLE are used to construct semi-empirical models of the flaring atmosphere to investigate the structure and evolution of the flare temperature and magnetic field. A comparison of the temperature stratification in flaring and non-flaring areas reveals strong heating of the flare ribbon during the flare peak. The polarization signals of the ribbon in the chromosphere during the flare maximum become stronger when compared to its surroundings and to pre- and post- flare profiles. Furthermore, a comparison of the response functions to perturbations in the line-of-sight magnetic field and temperature in flaring and non-flaring atmospheres shows that during the flare the Ca ii 8542 {\AA} line is more sensitive to the lower atmosphere where the magnetic field is expected to be stronger. The chromospheric magnetic field was also determined with the weak-field approximation which led to results similar to those obtained with the NICOLE inversions.Comment: 11 pages, 9 figures, accepted in Ap

Chromospheric polarimetry through multi-line observations of the 850 nm spectral region II: A magnetic flux tube scenario

In this publication we continue the work started in Quintero Noda et al. (2017) examining this time a numerical simulation of a magnetic flux tube concentration. Our goal is to study if the physical phenomena that take place in it, in particular, the magnetic pumping, leaves a specific imprint on the examined spectral lines. We find that the profiles from the interior of the flux tube are periodically dopplershifted following an oscillation pattern that is also reflected in the amplitude of the circular polarization signals. In addition, we analyse the properties of the Stokes profiles at the edges of the flux tube discovering the presence of linear polarization signals for the Ca II lines, although they are weak with an amplitude around 0.5% of the continuum intensity. Finally, we compute the response functions to perturbations in the longitudinal field and we estimate the field strength using the weak field approximation. Our results indicate that the height of formation of the spectral lines changes during the magnetic pumping process which makes the interpretation of the inferred magnetic field strength and its evolution more difficult. These results complement those from previous works demonstrating the capabilities and limitations of the 850 nm spectrum for chromospheric Zeeman polarimetry in a very dynamic and complex atmosphere.Comment: 12 pages, 12 figures, 0 tables, MNRAS main journal publicatio

Inference of the chromospheric magnetic field configuration of solar plage using the Ca II 8542 {\AA} line

It has so far proven impossible to reproduce all aspects of the solar plage chromosphere in quasi-realistic numerical models. The magnetic field configuration in the lower atmosphere is one of the few free parameters in such simulations. The literature only offers proxy-based estimates of the field strength, as it is difficult to obtain observational constraints in this region. Sufficiently sensitive spectro-polarimetric measurements require a high signal-to-noise ratio, spectral resolution, and cadence, which are at the limit of current capabilities. We use critically sampled spectro-polarimetric observations of the \cair line obtained with the CRISP instrument of the Swedish 1-m Solar Telescope to study the strength and inclination of the chromospheric magnetic field of a plage region. This will provide direct physics-based estimates of these values, which could aid modelers to put constraints on plage models. We increased the signal-to-noise ratio of the data by applying several methods including deep learning and PCA. We estimated the noise level to be $1\cdot10^{-3} I_c$. We then used STiC, a non-local thermodynamic equilibrium (NLTE) inversion code to infer the atmospheric structure and magnetic field pixel by pixel. We are able to infer the magnetic field strength and inclination for a plage region and for fibrils in the surrounding canopy. In the plage we report an absolute field strength of $|B| =440 \pm 90$ G, with an inclination of $10^\circ \pm 16^\circ$ with respect to the local vertical. This value for $|B|$ is roughly double of what was reported previously, while the inclination matches previous studies done in the photosphere. In the fibrillar region we found $|B| = 300 \pm 50$ G, with an inclination of $50^\circ \pm 13^\circ$.Comment: Accepted September 22t

Considerations on Field Methodology for Macrofungi Studies in Fragmented Forests of Mediterranean Agricultural Landscapes

The methodology used for the determination of macrofungal diversity in Mediterranean areas differs in the time of sampling and the number of years displayed, making it difficult to compare results. Furthermore, the results could be refuted because the studies are being conducted over an insufficient number of years or without considering the variation of the meteorological conditions from one year to the next and its effects on fruiting time, which might not fit the sampling. In order to optimize field work on fungal fruiting in Mediterranean environments dominated by holm oak (Quercus ilex L.), a weekly field analysis of macrofungal diversity from February 2009 to June 2013 was carried out in a Mediterranean holm oak forest in the middle-west of the Iberian Peninsula. The results revealed that fruiting bodies appeared throughout the year and that there was a delay in autumn fruiting, overlapping with spring. All this seems to indicate that weekly collection throughout the year and for a period of two years could be sufficient to estimate the macrofungal biodiversity of this ecosystem. © 2022 by the authors. Licensee MDPI, Basel, Switzerland

Chromospheric polarimetry through multi-line observations of the 850 nm spectral region III: Chromospheric jets driven by twisted magnetic fields

We investigate the diagnostic potential of the spectral lines at 850 nm for understanding the magnetism of the lower atmosphere. For that purpose, we use a newly developed 3D simulation of a chromospheric jet to check the sensitivity of the spectral lines to this phenomenon as well as our ability to infer the atmospheric information through spectropolarimetric inversions of noisy synthetic data. We start comparing the benefits of inverting the entire spectrum at 850 nm versus only the Ca II 8542 A spectral line. We found a better match of the input atmosphere for the former case, mainly at lower heights. However, the results at higher layers were not accurate. After several tests, we determined that we need to weight more the chromospheric lines than the photospheric ones in the computation of the goodness of the fit. The new inversion configuration allows us to obtain better fits and consequently more accurate physical parameters. Therefore, to extract the most from multi-line inversions, a proper set of weights needs to be estimated. Besides that, we conclude again that the lines at 850 nm, or a similar arrangement with Ca II 8542 A plus Zeeman sensitive photospheric lines, poses the best observing configuration for examining the thermal and magnetic properties of the lower solar atmosphere.Comment: 14 pages, 11 figure