El impacto social y empresarial de los estudios de Comunicación en Pontevedra

La implantación de los estudios de Comunicación en la Comunidad Autónoma Gallega no ha estado exenta de problemas y polémicas. Tras más de 25 años del inicio de las titulaciones de este ámbito, resulta necesario realizar una valoración de su evolución buscando generar un documento de referencia para conocer sus datos de partida, pero también para reflexionar sobre su evolución. De una forma más concreta, se aporta una visión específica sobre cómo la puesta en marcha de los estudios de Publicidad y Relaciones Públicas y Comunicación Audiovisual han incidido en la realidad empresarial de la pequeña ciudad de Pontevedra, generando no sólo un tejido específico de este tipo de negocios si no una cultura real en torno al fenómeno comunicativo. El trabajo recopila datos de referencia en torno a los estudios, pero también en torno al sector empresarial y aplica una metodología de investigación amplia. Palabras clave: comunicación, publicidad, Pontevedra, Grados, Universidad, Galicia

A quantitative binding study of fibrinogen and human serum albumin to metal oxide nanoparticles by surface plasmon resonance

The interaction of plasma proteins with metal oxide nanoparticles (NPs) is important due to the potential biomedical application of these NPs. In this study, new approaches were applied to measure quantitatively the kinetics and affinities of fibrinogen and human serum albumin (HSA) for TiO2, CeO2, Al2O3 and ZnO NPs immobilized on a sensor chip. Real-time surface plasmon resonance (SPR) measurements showed that fibrinogen interacted with TiO2 and CeO2 NPs with high affinity (135 and 40 pM, respectively) and to Al2O3 NPs with moderate affinity (15 nM). The data fitted well to the Langmuir model describing a 1:1 interaction. In contrast, HSA interacted with TiO2, CeO2 and Al2O3 NPs with lower affinity (80 nM, 37 nM and 2 µM, respectively) with the data fitting better to the conformational change model. TiO2 and CeO2 NPs had fast association rate constants with fibrinogen (1×106 M−1 s−1) and Al2O3 NPs had a slower association rate constant (1×104 M−1 s−1). By contrast, HSA had markedly slower association rate constants (1×103–1×104 M−1 s−1). The binding of the proteins was reversible, thus allowing the rapid capture of data for replicates. The occurrence of matrix effects was evaluated by using surfaces with different chemistries to capture the NPs, namely alginate, NeutrAvidin and bare gold. The affinity values determined for the NP–protein interactions were largely independent of the underlying surface used to capture the NPs.Xunta de Galicia | Ref. GPC2013-00

Aspiring and inspiring: the role of women in educational leadership

Purpose This study aims to delve deep into the differences observed in leadership acquisition and development between men and women and analyse the impact of certain extra-curricular activities demonstrated to influence leadership acquisition. With this evidence, this study intends to detect areas that require deeper analysis and suggest actions to redress the balance and promote a more egalitarian leadership in education in both teaching and management positions. Design/methodology/approach Accidental, as opposed to random, sampling was used via a cross-curricular study with a quasi-experimental design. The participants in this study were 335 teacher training students in Spanish universities. The Teamwork Skills Questionnaire was used to evaluate leadership and a self-assessment questionnaire to measure extracurricular activities. Findings Female students score lower in leadership skills and are engaged in fewer activities associated with successful leadership skills development. Very few students receive any training on leadership, with even fewer female than male students. Furthermore, the practice of certain extra-curricular activities can boost leadership skills. It has also been noted that these activities are carried out in different ways, depending on student gender. Originality/value This study has two points of focus: the level of leadership among education students, differentiating between male and female students, and the impact of certain extra-curricular activities carried out during the academic year, which have proven to have a considerable effect on the development of leadership skills

The outdated public management function in Spain and its relationship to a common regulatory framework?

La Dirección Pública es una de las áreas de la gestión pública española menos evolucionada, siendo infructuosos o ineficaces los intentos emprendidos por profesionalizar dicha función. Esta deficiencia cobra mayor importancia si cabe en un momento como el actual presidido por la búsqueda de la transparencia, la cercanía al ciudadano y la mejora en la calidad de la acción pública. En este sentido, el caso español responde a un enfoque multicausal en el que este artículo se fijará en una sola de sus variantes, como es la condicionante de la normativa o la legislación al respecto y su evolución.Se pretende, en definitiva, arrojar luz sobre si la escasa, ambigua o poco coercitiva legislación actual sobre dirección pública puede estar en el trasfondo de la falta de evolución del modelo o al menos constituirse en concausa de dicha falta de evolución. Se indagará especificamente, de forma complementaria, en el hecho de si ha habido o no un compendio legislativo al que pueda denominarse normativa común. La metodología empleada, fundamentalmente cualitativa, se ha basado fundamentalmente en el análisis historico-político así como en un análsis jurídico de las normas principales en la material; cuidando en sobremanera las fuentes que proporcionaban esta información, todas ellas de alto nivel académico.The public direction is one of de areas of the least evolved public management in Spain, being fruitless or ineffective the attempts undertaken for profesionalizing this function. This deficiency receive major importance in a moment as the current one presided by the research of the transparency, the nearness to the citizen and the improvement in the quality of the public action. In this respect, the Spanish case answers to a multicasual approach in which this article will be fixed in alone one of his variants, since it is the determining one of the regulation or the legislation in the matter and his evolution. One tries to throw, definitively, light on if the scanty, ambiguous or slightly coercive current legislation on public direction can be in the background of the lack of evolution of the model or at least to be constituted in concausa of the above mentioned lack of evolution. It will be investigated specifically, of complementary form, in the fact of if it has had or not a legislative compendium to which it could be named a common regulation. The used, fundamentally qualitative methodology, it has been based fundamentally on the historical-political analysis as well as on a juridical análysis of the legislation; taking care in exceedingly the sources that there was providing this information, all of them high-level academician

Synthesis of C 40 ‐symmetrical fully conjugated carotenoids by Olefin metathesis

In an effort to push olefin metathesis to the limits of conjugation in reactants and products, the C40-symmetrical carotenoids β,β-carotene (1), lycopene (2), (3R,39R)-zeaxanthin (3), and rac-isozeaxanthin (4), which are conjugated undecaenes, have been synthesized from C21-terminal hexaenes by treatment with Grubbs’ second-generation Ru catalyst in dichloromethane at 50 °CMinisterio de Ciencia e Innovación | Ref. SAF2010-17935Xunta de Galici

Control strategy for multiphase drives with minimum losses in the full torque operation range under single open-phase fault

Fault tolerance is an advantageous characteristic of multiphase machines when compared with three-phase ones. During open-phase fault, the current references need to be adapted to provide ripple-free torque. As a consequence of this modification, the postfault phase currents might be larger than the rated current. Such a situation leads to overheating, and to preserve the integrity of the system, some limits are set to the postfault phase currents. Two main strategies have been proposed for the postfault situation: maximum torque (MT) and minimum losses (ML). The MT strategy allows us to obtain the widest torque operation range (TOR) in the postfault situation but does not minimize the stator winding losses; conversely, the ML strategy provides the minimum stator winding losses for each torque value, at the expense of reducing the TOR. Thus, the solutions proposed so far do not achieve minimum stator winding losses in the entire (that of the MT strategy) TOR. This paper presents the full-range minimum losses (FRML) postfault control strategy, which minimizes the losses in the whole TOR, for multiphase machines with sinusoidally distributed windings under single open-phase fault. The FRML strategy is evaluated for different types of machines, phase numbers, and winding arrangements. Experimental results are provided.Agencia Estatal de Investigación | Ref. DPI2016-75832Ministerio de Economía y Competitividad | Ref. BES-2013-06314

Parthenogenetic Ischnura hastata (Say, 1839) is widespread in the Azores islands (Zygoptera: Coenagrionidae)

Literature and personal information on the distribution ofI. hastata and other odon. spp. in theAzores is reported. /. hastata and I. pumilioare recorded forthe firsttime from the islands ofCorvo and Sao Jorge,respectively. I. hastata appears the most common and abundant sp. and itspopulationis formed by only 9 9 (no 6 S were everrecorded). The asexual reproductionofthese populations was demonstrated by meansof laboratory rearing during several generations.The dispersalability ofthis sp. and the possible origin ofparthenogenesis after its colonisation ofthe Azores are briefly discussed. The possible causes ofthreat are identified and the need for conservation measures is outlined

El acceso a la cátedra de Derecho romano del prof. Fuenteseca Díaz a mediados del s. XX

En este capítulo de libro se analizan las sucesivas formas de acceso a las cátedras universitarias que se fueron introduciendo en España por medio de diversas reformas legislativas desde un antiguo Reglamento de 1931 hasta la Ley de Reforma Universitaria de 1983. Se realiza un recorrido por los diversos intentos de reforma tomando como hilo conductor el acceso a la cátedra de Derecho romano del prof. Fuenteseca Díaz

A novel methodology for the automatic adquisition or real forest fires datasets over long periods of time

Abstract. Forest areas or green infrastructure have become a fundamental economic and social factor which has made it possible to generate new sources of employment and to maximize the use of basic resources. Nevertheless, good conservation of this type of infrastructure is a challenge. This is due to the problems deriving from, on the one hand, the increase of its physical scope and, on the other, poor management or no management at all. The Spanish region of Galicia is a historic place of natural wealth, especially concerning forest resources, wherein 2/3 of its territory is forest area from where more than half of the Spanish wood supply comes.This paper seeks to create a mapping of major forest fire disturbances on the Galician territory over extended periods of time. To achieve this, an automated multitemporal detection process based on vegetation indices and unsupervised learning is developed. The objective is to obtain data heterogeneity in terms of vegetation state, land use, and image properties, allowing a better understanding of forest land disturbances and improving their management.Agencia Estatal de Investigación | Ref. TED2021-132000B-I00Ministerio de Universidades | Ref. FPU21/0303

Electrochemical synthesis and carbon doping of nanostructured iron fluorides from the selection of metal current collectors in lithium-ion batteries

The use of materials that rely on conversion reactions as electrodes in lithium-ion batteries is extensively investigated due to their potential for enhanced capacity compared to traditional electrode materials. Iron fluorides, in particular, present a promising alternative in terms of specific capacity. However, these materials often face challenges related to low intrinsic conductivity. This issue is typically addressed in the literature by doping the active material with carbon particles and reducing the particle size of the active material. This study explores the feasibility of directly integrating conductive carbon from the substrate into the fluoride-based active material during the synthesis process. The synthesis employs a simple anodic method conducted directly on the chosen metallic substrate, which then functions as the current collector in the devices. This approach simplifies the synthesis process, reduces processing time, and eliminates the need for additives and binders at the conventional active material-current collector interface. Two FeF3 layers were electrochemically synthesized on steel substrates with different carbon contents. These layers were evaluated as cathode-active materials for rechargeable lithium-ion batteries. The influence of carbon on the conductivity of the conversion layer was assessed using Electrochemical Impedance Spectroscopy (EIS) with a model based on conductive porous electrodes. Morphological and thickness analyses of the layers showed a strong correlation between increased pore size and layer thickness and the carbon content in the metallic substrate. The optimal performance was observed with the layer on the substrate with higher carbon content. The electrochemical performance of the active material was further evaluated using electrochemical impedance spectroscopy and galvanostatic tests in pouch cells. The conversion layers derived from carbon steel exhibited reduced resistivity and enhanced specific capacitance and cyclability compared to layers formed on pure iron.Universidade de Vigo/CISU