Estimating social carrying capacity in protected Mediterranean mountain areas. Methodological orientation

The concept of social carrying capacity, though opens to debate and critique, is a valuable tool that enhances the management of recreational use in protected natural areas. In this study, conducted in Sierra de las Nieves natural park (Spain), we first categorised the hikers making use of the park and then, from the profiles obtained, analysed their perception of crowding on the trails. This assessment was subsequently used to assess levels of user satisfaction and thus to determine the psychosocial carrying capacity of the park. The results obtained can be extrapolated to most of the Spanish natural parks in Mediterranean mountain areas, due to their comparable levels of visitor numbers and to the prevalence of recreational hiking use. The results suggest that management efforts should be directed toward relocating trails outside the core areas, such that user preferences may be satisfied while less impact is made on the areas of highest environmental value.

Real-time audio interaction in serious games for music learning

In this LBD, we present several Apps for playing while learning music or for learning music while playing. The core of all the games is based on the good performance of the real-time audio interaction algorithms developed by the ATIC group at Universidad de Ma ́laga (SPAIN).

Modeling spectral changes in singing voice for pitch modification

We present an advanced method to achieve natural modifications when applying a pitch shifting process to singing voice by modifying the spectral envelope of the audio ex- cerpt. To this end, an all-pole spectral envelope model has been selected to describe the global variations of the spectral envelope with the changes of the pitch. We performed a pitch shifting process of some sustained vowels with the envelope processing and without it, and compared both by means of a survey open to volunteers in our website.

La construcción social del género en la cultura musical pop: una oportunidad para abordar el sexismo en la educación superior.

Nuestro trabajo tiene como principal objetivo explicar los problemas detectados en el futuro profesorado en relación al desconocimiento y/o a la distorsión del movimiento feminista y los debates en torno al género, que tienen relación directa en ocasiones con la imagen proyectada de mujeres y hombres en los medios de comunicación. Para paliar estas deficiencias, así como para promover la alfabetización mediática entre el alumnado, hemos optado por incorporar a los contenidos de las distintas asignaturas del área de Didáctica de las Ciencias Sociales, tanto de grado como máster, la lectura y la interpretación de textos audiovisuales, concretamente aquellos producidos por la industria musical hegemónica estadounidense, los vídeos musicales de las cantantes pop más seguidas actualmente como Beyoncé, Katy Perry, Meghan Trainor, Jennifer López, Alicia Keys y el grupo Fifth Harmony. De este modo, incorporamos no sólo alta cultura sino también la cultura musical pop o cultura mediática, esencial en una sociedad en la que la ciudadanía está continuamente expuesta y contaminada visualmente por dichos medios audiovisuales

In situ characterization of porous VPO catalysts with fibrous structure: Identifying the redox behavior and the stability of active sites

Two VPO materials with fibrillar morphology have been prepared by the aid of electrospinning technique. One is a VPO carbon-supported material (VCF200) with fibrous morphology and very high surface area that is stable under oxidizing conditions up to 350C. The other material is a bulk mixed VPO oxide (VPO500) with fibrous structure obtained after optimizing the calcination of the carbon support in VCF200. Despite it is a bulk oxide material, this material exhibits a high surface area (> 60 m2/g). The redox behavior of both samples was monitored by in situ Raman spectroscopy under oxidation/reduction cycles. For the dehydrated supported sample (VCF200), the pyrophosphate phase (VO)2P2O7 (Raman ~930 cm-1) is detected, which has been described as the active phase (see Figure (a) below). This phase is quite stable since it does not disappear upon subsequent oxidation/reduction cycles. Under reduction conditions at 125C, in consecutive cycles, additional Raman bands appear at ~1090 cm-1 that are characteristic of the αII-VOPO4 phase. On the other hand, the bulk phases show a reversible behavior under redox cycles (Figure (b)). Under reducing conditions, a Raman band appears at ~980 cm-1 (β-VPO phase), whereas under oxidation conditions some segregation to VOx oxides occurs. Nevertheless, this segregation is reversible and the β-VPO phase forms again under reducing conditions. Thus, these results demonstrate that the active VPO phases of these fibrous catalysts are quite stable, and that their structure is reversible under several redox cycles, which make them suitable as oxidation catalysts.

Insights into the Fallback Path of Best-Effort Hardware Transactional Memory Systems

Current industry proposals for Hardware Transactional Memory (HTM) focus on best-effort solutions (BE-HTM) where hardware limits are imposed on transactions. These designs may show a significant performance degradation due to high contention scenarios and different hardware and operating system limitations that abort transactions, e.g. cache overflows, hardware and software exceptions, etc. To deal with these events and to ensure forward progress, BE-HTM systems usually provide a software fallback path to execute a lock-based version of the code. In this paper, we propose a hardware implementation of an irrevocability mechanism as an alternative to the software fallback path to gain insight into the hardware improvements that could enhance the execution of such a fallback. Our mechanism anticipates the abort that causes the transaction serialization, and stalls other transactions in the system so that transactional work loss is mini- mized. In addition, we evaluate the main software fallback path approaches and propose the use of ticket locks that hold precise information of the number of transactions waiting to enter the fallback. Thus, the separation of transactional and fallback execution can be achieved in a precise manner. The evaluation is carried out using the Simics/GEMS simulator and the complete range of STAMP transactional suite benchmarks. We obtain significant performance benefits of around twice the speedup and an abort reduction of 50% over the software fallback path for a number of benchmarks.

OC-OT-LIBS: A novel approach to the chemical characterization of single particles

Spectral identification of individual micro- and nano-sized particles by the sequential intervention of optical catapulting, optical trapping and laser-induced breakdown spectroscopy is presented [1]. The three techniques are used for different purposes. Optical catapulting (OC) serves to put the particulate material under inspection in aerosol form [2-4]. Optical trapping (OT) permits the isolation and manipulation of individual particles from the aerosol, which are subsequently analyzed by laser-induced breakdown spectroscopy (LIBS). Once catapulted, the dynamics of particle trapping depends on the laser beam characteristics (power and intensity gradient) and on the particle properties (size, mass and shape). Particles are stably trapped in air at atmospheric pressure and can be conveniently manipulated for a precise positioning for LIBS analysis. The spectra acquired from the individually trapped particles permit a straightforward identification of the inspected material. The current work focuses on the development of a procedure for simultaneously acquiring dual information about the particle under study via LIBS and time-resolved plasma images by taking advantage of the aforementioned features of the OC-OT-LIBS instrument to align the multiple lines in a simple yet highly accurate way. The plasma imaging does not only further reinforce the spectral data, but also allows a better comprehension of the chemical and physical processes involved during laser-particle interaction. Also, a thorough determination of the optimal excitation conditions generating the most information out of each laser event was run along the determination of parameters such as the width of the optical trap, its stability as a function of the laser power and the laser wavelength. The extreme sensibility of the presented OC-OT-LIBS technology allows a detection power of attograms for single/individual particle analysis.

Libs in cultural heritage: recognition and identification of objects in an underwater archaeological shipwreck

Nowadays, one of the most important areas of interest in archeology is the characterization of the submersed cultural heritage. Mediterranean Sea is rich in archaeological findings due to storms, accidents and naval battles since prehistoric times. Chemical analysis of submerged materials is an extremely valuable source of information on the origin and precedence of the wrecks, and also the raw materials employed during the manufacturing of the objects found in these sites. Nevertheless, sometimes it is not possible to extract the archaeological material from the marine environment due to size of the sample, the legislation or preservation purposes. In these cases, the in-situ analysis turns into the only alternative for obtaining information. In spite of this demand, no analytical techniques are available for the in-situ chemical characterization of underwater materials. The versatility of laser-induced breakdown spectroscopy (LIBS) has been successfully tested in oceanography 1. Advantages such as rapid and in situ analysis with no sample preparation make LIBS a suitable alternative for field measurements. To further exploit the inherent advantages of the technology, a mobile fiber-based LIBS platform capable of performing remote measurements up to 50 meters range has been designed for the recognition and identification of artworks in underwater archaeological shipwrecks. The LIBS prototype featured both single-pulse (SP-LIBS) and multi-pulse excitation (MP-LIBS) 2. The use of multi-pulse excitation allowed an increased laser beam energy (up to 95 mJ) transmitted through the optical fiber. This excitation mode results in an improved performance of the equipment in terms of extended range of analysis (to a depth of 50 m) and a broader variety of samples to be analyzed (i.e., rocks, marble, ceramics and concrete). In the present work, the design and construction considerations of the instrument are reported and its performance is discussed on the basis of the spectral response, the remote irradiance achieved upon the range of analysis and its influence on plasma properties, as well as the effect of the laser pulse duration and purge gas to the LIBS signal. Also, to check the reliability and reproducibility of the instrument for field analysis several robustness tests were performed outside the lab. Finally, the capability of this instrument was successfully demonstrated in an underwater archaeological shipwreck (San Pedro de Alcántara, Malaga).

Structuring the Inside of a New-born Business – Case of a Consulting Service Company

When starting a new business, most entrepreneurs usually focus on the external aspects in order to make their new business successful. Consequently, most research in entrepreneurship has been focused on the external factors to explain the high rate of entrepreneurial failures. But there is also a lack of consideration of the internal aspects by the new entrepreneurs. This paper focuses on these internal aspects and how to help a new business implementing an internal strategy.

Estructuras sub-longutud de onda para el diseño de dispositivos en guía dieléctrica

Sub-wavelength structures are enabling the design of devices based in dielectric waveguides with unprecedented performance in both the near-infrared and mid-infrared wavelength regions. These devices include fiber-to-chip grating couplers with sub-decibel efficiency, waveguide couplers with bandwidths of several hundred nanometers, and low loss suspended waveguides. Here we will report our progress in the electromagnetic modelling and simulation of sub-wavelength structures, providing at the same time an intuitive vision of their fundamental optical properties. Furthermore, we will address design strategies for several integrated optical devices based on these structures, and present the latest experimental results for structures operating both at near and mid-infrared wavelengths.

Los rubios (2003) de Albertina Carri y el pacto autobiográfico

Los rubios en una película documental en la que se produce el pacto autobiográfico de Philippe Lejeune. No hay autoficción pues Albertina Carri despliega una transparencia narrativa sobre el secuestro y desaparición de sus padres. La puesta en abismo y otras elecciones narrativas no alejan el discurso documental del modo reflexivo y performativo. Autor, narrador y personaje son el mismo, pero lo importante es que la autora dice la verdad y además la anuncia.

Efficient Hill Climber for Constrained Pseudo-Boolean Optimization Problems

Efficient hill climbers have been recently proposed for single- and multi-objective pseudo-Boolean optimization problems. For $k$-bounded pseudo-Boolean functions where each variable appears in at most a constant number of subfunctions, it has been theoretically proven that the neighborhood of a solution can be explored in constant time. These hill climbers, combined with a high-level exploration strategy, have shown to improve state of the art methods in experimental studies and open the door to the so-called Gray Box Optimization, where part, but not all, of the details of the objective functions are used to better explore the search space. One important limitation of all the previous proposals is that they can only be applied to unconstrained pseudo-Boolean optimization problems. In this work, we address the constrained case for multi-objective $k$-bounded pseudo-Boolean optimization problems. We find that adding constraints to the pseudo-Boolean problem has a linear computational cost in the hill climber.

Evolución de los documentales en España

Estudio histórico sobre los grandes hitos del cine de no-ficción en España, desde sus inicios hasta la actual irrupción de los web-docs, enfatizando aquellos autores y obras que aportaron novedades o son representativas de un determinado contexto socio-político. Se mencionan los modelos inspiradores, y se proponen líneas discursivas para una producción documental de gran calidad, que no ha sido suficientemente valorada a nivel internacional.

Propuesta metodológica para la Educación Patrimonial a través de la puesta en escena de las películas de romanos: el valor artístico y el valor documental

La Educación Patrimonial tiene como objetivo que nuestros alumnos aprendan a legitimar o poner en valor el patrimonio cultural. Las “películas de romanos”, más concretamente la puesta en escena de estos films son un recurso didáctico consolidado; pero la Didáctica de las Ciencias Sociales no cuenta con una metodología que permita dar criterio de certeza al valor histórico-documental así como al valor histórico-artístico de la puesta en escena de las películas de romanos. Proponemos una metodología para la verificación del valor histórico-documental e histórico-artístico de los escenarios de las “películas de romanos”. Heritage Education has as objective that our students learn to qualify or value cultural heritage. The "films about ancient Rome", specifically the scenography of these films are an educational resource consolidated, but Didactics of Social Science doesn't have a didactic methodology which allows for validating to the historical-documentary value as the historical-artistic value of the scenography of "films about ancient Rome". We propose a methodology for the verification of the historical-documentary and historical-artistic value for the scene of these films.

Familiarizaté: homaparentalidad, deseo y parentesco

En este trabajo nuestro interés general está en detectar las fórmulas en las que se enlaza la homoparentalidad con el deseo de descendencia. Específicamente, quisimos conocer cómo estas fórmulas afectan a la estructuración y construcción de las relaciones de parentesco en estas familias. Para ello recurrimos al análisis de un proyecto audiovisual desarrollado por la Federación Estatal de Lesbianas, Gays, y Bisexuales (FELGTB) que consta de 17 documentales, los cuales tratan de esclarecer la realidad social de las familias homoparentales. Se ha utilizado una metodología cualitativa específicamente la ofrecida desde una perspectiva discursiva de orientación psicosocial, basada esencialmente en la investigación sobre los aspectos constructivos del lenguaje en la interacción social. Se empleó el análisis del discurso desde la propuesta de Potter y Wetherell (1987) a partir de sus conceptos construcción y repertorios interpretativos.