A proposal to highlight peace education at tertiary education through cooperative oral activities

La educación para la paz ha despertado especial interés en contextos en los que los valores asociados a ésta y los derechos humanos se están viendo cercenados. En Europa, este fenómeno puede equipararse a la situación de crisis económica en la que se encuentran numerosos países. Este artículo pretende ser una contribución a la enseñanza universitaria activa que esté basada en competencias sociales y enmarcada en los principios de la educación para la paz. En este sentido, este trabajo presenta una propuesta de actividades que contribuyen a potenciar los principios y valores que propone la educación para la paz. Se expone el modo de llevar a cabo actividades orales transversales que fomenten la educación para la paz en dos asignaturas de estudios de grado de la Universidad de Alicante, Lengua Inglesa III y Lingüística General I. Como resultado de su implementación, se señala que esta metodología fomenta la adquisición de competencias sociales del alumnado entre las que destacan la resolución de conflictos, la escucha activa o la cooperación.The interest on peace education has grown in contexts where the values associated with it and human rights are not being respected. In Europe, this can be associated with the economic crisis that many countries suffer nowadays. This article intends to be a contribution to active University education based on social competences and on the principles of peace education. In this sense, this article offers a proposal of activities that contribute to highlight the principles and values proposed by peace education. This paper shows the way of developing oral activities that contribute to peace education in two BA subjects at the University of Alicante, English Language III and General Linguistic I. As a result of its implementations, it will be pointed out that this methodology promotes the acquisition of students’ social competences, such as, conflict solving, active listening and cooperation

Chaos controller for switching regulators aiming enhanced design-space towards miniaturization

This paper tackles the control of fast-scale instabilities in a buck switching power converter aiming to expand its design-space towards miniaturization. After briefly revisiting the working principle of existing chaos controllers, the paper explores an alternative approach based on amplifying the harmonic at the switching frequency. Numerical simulations show that the proposed controller can concurrently improve both fast-scale and slow-scale stability margins. Finally, the paper proposes a chaos controller combined with an output ripple reduction network and studies their interaction with the aim of achieving both low-ripple and improved stability.Preprin

Multi-homing tunnel broker

A proper support for communications has to provide fault tolerance capabilities such as the preservation of established connections in case of failures. Multihoming addresses this issue, but the currently available solution based in massive BGP route injection presents serious scalability limitations, since it contributes to the exponential growth of the BGP table size. An alternative solution based on the configuration of tunnels between the multihomed site exit routers and the ISP border routers has been proposed for IPv6 in RFC 3178. However, the amount of manual configuration imposed by this solution on the ISP side prevents its wide adoption. In particular, this solution requires at the ISP the manual configuration of a tunnel endpoint per each multihomed client that it serves. We present a multihoming tunnel broker (MHTB) that provides automatic creation of the tunnel endpoint at the ISP side.This work was supported by the SAM (Advanced Servers with Mobility)project, funded by the Spanish National research and Development Programme as TIC2002-04531-C04-03.Publicad

Understanding the differences in catalytic performance for hydrogen production of Ni and Co supported on mesoporous SBA-15

Three mono and bimetallic Nix Co1−x /SBA-15 catalysts (x = 1, 0.5 and 0) with a total metallic content of 10 wt% have been prepared by a deposition–precipitation (DP) method. The catalytic performances on the dry reforming of methane reaction (DRM) have been determined and correlated with their physical and chemical state before and after the catalytic reaction. So, while the nickel monometallic system presents a high activity and stability in the DRM reaction, the Co/SBA-15 catalytic system turns out completely inactive. For its part, the Ni0.5Co0.5/SBA-15 has initially a catalytic performance similar to the Ni/SBA- 15 monometallic system, but rapidly evolving to an inactive system, therefore resembling the behavior of the cobalt-based catalyst. The characterization by TEM and in situ XPS techniques has allowed us to ascribe these differences to the initial state of metallic particles after reduction and their different evolution under reaction conditions. So, while after reduction both nickel containing Nix Co1−x /SBA-15 catalysts (x = 1 and 0.5) present a well dispersed metallic phase, the cobalt monometallic catalyst yields big metallic particles with a heterogeneous distribution of sizes. Additionally, unlike the Ni/SBA-15, the NiCo/SBA-15 system increases during reaction the metallic particle sizes. Besides indicating that the particle size is a major reason determining the catalytic performances, these results suggest that in the Ni–Co system both metals form after reduction a bimetallic phase mainly located inside the mesoporous channels of SBA-15 support. Under DRM reaction conditions, the cobalt is segregated to the surface of the bimetallic particles, which seems to determine the interaction with the support surface SBA-15. This feature gives rise to a much less stable metallic phase which suffers an important sintering process under DRM catalytic conditions. © 2017 Elsevier B.V. All rights reserved. 1. Introduction Supported nickel catalytic systems are currently one of the most important industrial heterogeneous catalysts because its remarkable performance in a number of economically strategic processes [1–5]. Among them, the steam reforming of methane (SRM, CH4 + H2O ↔ 3H2 + CO) can be outlined as the main industrial process for obtaining hydrogen and synthesis gas, used to syn- thesize various important chemicals and fuels [6–9]. Although it is not yet commercially exploited, the dry reforming of methane (DRM, CH4 + CO2 ↔ 2H2 + 2CO) is an especially interesting reac- tion that transforms two of the most harmful greenhouse gases, methane and carbon dioxide, into a mixture of hydrogen and car- bon monoxide [10–12]. Once again, Ni-based catalysts are the most ∗ Corresponding author. E-mail address: [email protected] (A. Caballero). widely tested in the literature for this reforming reaction, even though noble metal based catalysts such as Pt, Ru and Rh are much more performance toward methane conversion. The principal issue comes from the fact that Ni typically undergoes severe deactivation processes, mainly due to coke formation, but also due to sinter- ing of the metallic phase, generating big metallic particles which at the same time, favors the coke formation processes [13–17]. As an alternative to overcome these issues, a number of publications have shown as the use of bimetallic systems, as the combination of nickel and cobalt modified the catalytic performance in steam and dry reforming of methane [18–23]. But, depending on the support or the preparation methods both effects, improvements and wors- ening of the efficiency, have been reported. Main reasons explaining these contradictory findings are probably related with differences in the interaction of metals with support surface, which has been recognized as an essential factor affecting the stability of metal [24–26]. So, a strategy to avoid the growth of metallic particles is the use of special supports, and in particular mesoporous supports.Ministerio Economía y Competitividad de España (MINECO) y fondos FEDER de la Unión Europea-ENE2011-24412 y CTQ2014-60524-

Batallas culturales, brecha perceptiva y polarización afectiva: una aproximación desde el caso español

Previous research has shown the existence of strong relationships between affective polarization and culture wars, but it is unknown to what extent this emotional division is, in fact, a ‘false polarization’ generated from second-order beliefs in those identity issues that categorize and define group membership. Using data from the ‘First National Survey of Political Polarization’ in Spain, an operationalization of the concept of ‘perception gap’ is proposed and an individual measurement of it through a formula that adapts the coefficient of Average Deviation (Dx̄), defined as the arithmetic mean of the absolute values of the deviations from the mean. This seeks to describe the ‘perception gap’ in Spain around two relevant culture wars in the discursive articulation of the ideological blocs: gender violence and national symbols. In the same way, the relationship between the partisan affiliation of the voters and the levels of perceptive gap is analyzed. In this regard, it is shown that, in those matters that are claimed as a symbolic property of an ideological bloc, the supporters of this bloc have a higher level of ‘perception gap’, that is, they tend to exaggerate their differences with the outgroup distorting the real positions of the adversaries. When the thematic battle redirects to a position of moral superiority of the group and becomes a key issue for intergroup differentiation, the homogeneity of the positions of its members is more accentuated and a greater perceptual deviation bias is also produced.Investigaciones previas han mostrado la existencia de fuertes relaciones entre polarización afectiva y batallas culturales, pero se desconoce hasta qué punto esta división emocional es, de hecho, una “falsa polarización” generada a partir de creencias de segundo orden en aquellas cuestiones identitarias que categorizan y definen al grupo. Utilizando datos de la “Primera Encuesta Nacional de Polarización Política” en España, se propone una operacionalización del concepto de “brecha perceptiva” y una medición individual del mismo a través de una fórmula que adapta el coeficiente de Desviación Media (Dx̄), definida como la media aritmética de los valores absolutos de las desviaciones de la media. La fórmula pretende describir la brecha de percepción en torno a dos batallas culturales relevantes en la articulación discursiva de los bloques ideológicos: la violencia de género y los símbolos patrios. Del mismo modo, se analiza la relación entre la afiliación partidista de los votantes y los niveles de brecha perceptiva. Al respecto, se muestra que, en aquellos asuntos que se reivindican como propiedad simbólica de un bloque ideológico, los partidarios de este bloque tienen un mayor nivel de “brecha perceptiva”, es decir, tienden a exagerar sus diferencias con los demás, distorsionando las posiciones reales de los adversarios. Cuando la batalla temática se redirige a una posición de superioridad moral del grupo y se convierte en un tema clave para la diferenciación intergrupal, se acentúa más la homogeneidad de las posiciones de sus miembros y se produce también un mayor sesgo de desviación perceptiva.The author José Miguel Rojo Martínez has a FPU predoctoral contract from the Spanish Ministry of Universities (Ref. FPU20/01033), thanks to which he has participated in this paper

Influence of government communication on risk perception. An analysis based on the context of the sixth wave of Covid-19 in Madrid

Risk theorists have frequently discussed the discursive construction of risk perception. In particular, the effect of media consumption on increasing the subjective perception of risk has been highlighted. Not much is known about how government communication affects citizens’ impressions and attitudes in this area, something that this research seeks to address. During the sixth wave of Covid-19, triggered by the emergence of the Omicron variant, government discourse shifted from initial concern to what has become known as the “influenzaisation” paradigm, an attempt to normalise the disease. Based on the results of a survey carried out in January 2022 amongst 664 citizens of the Community of Madrid, we sought to demonstrate, using binary logistic regression (BLR) models, to what extent the degree to which the citizens of Madrid internalised the government’s thesis of “influenzaisation” was related to a lower perception of risk. Similarly, the aim is to show whether agreement with the “influenzaisation” thesis also favoured positions that were less inclined to restrictions, so that government communication succeeded in reducing the social demand for measures. Finally, the study evaluates the predictive character of ideology on levels of risk perception and attitudes towards restrictive measures. The findings indicate that acceptance of the “influenzaisation” story led to a lower perception of risk and, as a consequence, reduced support for restrictive measures among those most exposed to this thesis. The discursive articulation of risk in government communication becomes a central element of crisis management and the strategic formulation of “risk de-escalation” or “post-risk” messages

Preserving Established Communications in IPv6 Multi-homed Sites with MEX

This research was supported by the SAM (Advanced Mobility Services) project, funded by the Spanish National R&D Programme under contract MCYT TIC2002-04531-C04-03.A proper support for multimedia communications transport has to provide fault tolerance capabilities such as the preservation of established connections in case of failures. While multi-homing addresses this issue, the currently available solution based in massive BGP route injection presents serious scalability limitations, since it contributes to the exponential growth of the BGP table size. Alternative solutions proposed for IPv6 fail to provide equivalent facilities to the current BGP based solution. In this paper we present MEX (Muti-homing through EXtension header) a novel proposal for the provision of IPv6 multi-homing capabilities. MEX preserves overall scalability by storing alternative route information in end-hosts while at the same time reduces packet loss by allowing routers to re-route in-course packets. This behavior is enabled by conveying alternative route information within packets inside a newly defined Extension Header. The resulting system provides fault tolerance capabilities and preserves scalability, while the incurred costs, namely deployment and packet overhead, are only imposed to those that benefit from it. An implementation of the MEX host and router components is also presented.Publicad

Reserva de la función suprarrenal en el espectro de la enfermedad renal crónica

Introducción: Alteraciones en los niveles de cortisol han sido asociados con un incremento en la mortalidad y una disminución en la calidad de vida relacionado al estado de salud en los pacientes con Enfermedad Renal Crónica (ERC). En pacientes con ERC en etapa terminal se ha descrito la presencia de niveles de cortisol en rangos normales a elevados después de la prueba de estimulación con hormona adrenocorticotropica (ACTH), la respuesta suprarrenal a la prueba de estimulación no ha sido descrita en todo el espectro de la ERC que incluya paciente en etapas mas tempranas incluyendo etapa 3, 4 y 5 con y sin terapia de remplazo renal (TRR). Por lo tanto, nosotros realizamos un estudio transversal que incluyera el espectro de la ERC, desde etapa 3 hasta etapa 5 con y sin TRR, con el fin de evaluar la función suprarrenal usando una prueba de estimulación a dosis baja de cosintropina (1 mcg de ACTH sintética). Método: se reclutaron pacientes adultos (edad mayor de 18 años) con diagnostico previo de ERC etapa 3ª hasta 5, se dividieron en 4 grupos de acuerdo con la tasa de filtrado glomerular (TFG): A) ERC etapa 3; B) ERC etapa 4; C) ERC etapa 5 sin TRR; D) ERC etapa 5 con TRR. Después de que los pacientes dieran su consentimiento informados aceptando participar, una dosis de 1 mcg de ACTH sintética era inyectada en bolo. Muestras para medición de cortisol sérico eran recolectadas a los 0, +30 y +60 minutos después de la estimulación. Resultados: Un total de 60 pacientes con ERC en etapa 3, 4 y 5 con y sin TRR, 15 en cada grupo, fueron incluidos. La edad media de los participantes fue de 54.3 +- 10.7 años; 27 fueron mujeres (45%) y la duración promedio desde el diagnostico de ERC expresado en meses fue de 13 meses (IQR; 8-45). Ninguno de los pacientes incluidos presento Insuficiencia Suprarrenal (IS). La correlación observada entre los niveles de cortisol basal, 30 minutos y 60 minutos después de la estimulación y la tasa de filtrado glomerular fueron todos negativos y estadísticamente significativos (r= -0.39, p=0.002, r= -0.363, p= 0.004, r= -0.4, p= 0.002, respectivamente). Conclusiones: Ninguno de los pacientes incluidos cumplía los criterios de IS después del resultado de la prueba de estimulación con dosis baja (1 mcg) de cosintropina. Sin embargo, nuestros resultados sugieren que el cortisol se eleva con la disminución de la TFG incluso en etapas tempranas de la ERC. Por consiguiente, podemos declarar con seguridad que no es necesario un tamizaje rutinario para IS en los pacientes con ERC

Modelo para evaluar la factibilidad de reutilización de aguas lluvias en edificaciones de diferentes usos y según la intensidad de lluvia de la zona

Trabajo de investigaciónSe generó un modelo, en el cual ingresando unos datos básicos de los proyectos, se pueda tener un análisis rápido, preliminar y acertado de los costos que puede llegar a tener la implementación de un sistema de tratamiento, reutilización de aguas lluvias y el tiempo de retorno de la inversión.INTRODUCCIÓN 1. GENERALIDADES DE TRABAJO DE GRADO 2. MARCOS DE REFERENCIA 3. METODOLOGIA 4. ELABORACION DEL MODELO 5. APLICACIONES DEL MODELO 6. ANALISIS DE RESULTADOS 7. CONCLUSIONES Y RECOMENDACIONES BIBLIOGRAFÍA ANEXOSEspecializaciónEspecialista en Recursos Hídrico