65 research outputs found

    Diseño de una explotación biológica extensiva de caracoles (hélix aspersa) en La Muela (Zaragoza)

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    El presente trabajo aborda una posible explotación de caracoles de la especie Helix aspersa, con un sistema de cría biológica extensiva. De esta manera, se presenta una introducción, –a modo de “estado de la cuestión”–, a partir de la revisión de las fuentes bibliográficas de la Helicicultura en España, así como de una memoria con sus correspondientes anejos, pliego de condiciones, estudio de seguridad y salud, planos y presupuesto. El resultado de este análisis es el diseño de una explotación donde trataremos de recrear un microclima de condiciones óptimas para el desarrollo y crecimiento del molusco. El consumo del caracol como animal comestible se remonta a los albores de la humanidad. Restos de conchas han sido encontrados entre los cúmulos de huesos y otros alimentos de las primitivas poblaciones humanas, en grutas y cavernas, –que hace millones de años–, fueron la morada de nuestros primitivos antepasados, tal y como ya mencionan Cuellar et al. (1991). Los romanos y griegos, en palabras de Fontanillas (1986), –no sólo fueron consumidores de caracoles–, sino que también fueron los primeros criadores. Tal y como apuntan Cuellar et al. (1991), Cayo Plinio el Viejo en su Monumental Historia Natural, se refiere ya a las clases comestibles de estos gasterópodos, y Marco Terencio Varrón (116-27 a de J.C.), menciona en una de sus obras, que el primer parque helicícola fue diseñado por Fulvio Hirpinio, con anterioridad a la guerra sostenida entre César y Pompeyo. Varrón, señala en sus trabajos las condiciones que debían reunir las instalaciones: sitio sombreado, fresco y húmedo -que no fuera un río- y cerrado para impedir fugas; recomendaciones que, por otra parte, no difieren especialmente de los principios fundamentales que hoy en día se preconizan por los criaderos actuales. Recomienda además, que cuando las condiciones naturales no sean propicias, se superen artificialmente, provocando rocío obtenido "por medio de un tubo terminado en un cierto número de protuberancias, lanzamos con fuerza agua, que al caer sobre una piedra, salpica gotas por todos lados". Cuellar et al. (1991). Posteriormente, los autores relatan, que el ya citado Fulvio Hirpinio mejoró aquel procedimiento, introduciendo los caracoles debajo de tiestos invertidos y agujereados, procurando engordarlos por medio de una alimentación intensiva embadurnando el interior de las vasijas con harina diluida en agua o vino. Será a partir del siglo XIX, cuando empiece a extenderse el consumo del caracol usando diferentes sistemas de cría, que nos permiten hacer una división en dos grandes grupos: •Criaderos al aire libre (explotaciones extensivas) •Criaderos en recintos cerrados (explotaciones intensivas). Fontanillas y García-Cuenca (2002) indican que el problema de la producción de proteínas animales a un costo razonable es un tema de gran importancia. Las circunstancias actuales, de crisis económica generalizada, impulsan la introducción de los helícidos en el mercado de producción de proteínas junto con los bóvidos, suidos y aves de corral, ya que los helícidos, –con poco gasto de instalación y una mano de obra no excesivamente cualificada–, son capaces de proporcionar carne de óptima calidad económicamente viable. De acuerdo con esta premisa, elaboramos un proyecto donde el promotor (Carolina Naya Franco), encarga al futuro Ingeniero Agrónomo, Miguel Merino García-Valdecasas, el diseño y la descripción del ciclo productivo de una explotación de caracoles, cuyas características desarrollaremos a lo largo del presente trabajo. Como conclusión a la introducción, citamos las palabras de Rossi y Rudolf (s.d.): "Hoy en día la Helicicultura es una realidad agronómica reconocida por los entes públicos e institucionales, muchos de los cuales (regiones y comunidades) han legislado a su favor y el mercado, ya capaz de absorber la producción ha ido creciendo y abriendo nuevos y consistentes espacios de consumo. El 75% está cubierto por la importación de los países del Este, en los cuales, estacionalmente, tiene lugar la recogida natural"

    Twitter in initial teacher training: Interaction with social media as a source of teacher professional development for social studies prospective educators

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    Producción CientíficaThe use of social media is now as prevalent as ever, and its educational ramifications still need to be fully explored, especially in initial teacher training. The aim of this study is to analyze social studies prospective teachers’ perceptions regarding the usefulness of social media for teacher professional development, and to generate communication, learning and engagement. This research also has the objective of exploring the effects of an intervention during an academic semester with three different groups of university students, applying a didactic strategy based on the use of Twitter, monitoring the interventions of 122 participants. A quantitative analysis was used to process the information obtained using questionnaires as well as the data obtained using MSocial, a tool for Social Network Analysis (SNA). Results indicate that, while pre-service teachers are not necessarily skeptical of the potential of social media for educational purposes, systematic interventions that promote interaction can positively affect their perception of the usefulness of social media. Results also show that the group where prospective educators interacted among themselves the most using Twitter during the interventions was the one that showed a significant increase in prospective teachers’ perception of the educational potential of social media.Universidad de Valladolid - (grant PID 025. COV. 2019-20. PID

    A first approach to earthquake damage estimation in Haiti: advices to minimize the seismic risk

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    This study is in the frame of the cooperative line that several Spanish Universities and other foreign partners started with the Haitian government in 2010. According to our studies (Benito et al. in An evaluation of seismic hazard in La Hispaniola, after the 2010 Haiti earthquake, 33rd General Assembly of the European Seismological Commission, Moscow, Russia, 2012) and recent scientific literature, the earthquake hazard in Haiti remains high (Calais et al. in Nat Geosci 3:794–799, 2010). In view of this, we wonder whether the country is currently ready to face another earthquake. In this sense, we estimated several damage scenarios in Port-au-Prince and Cap-Haitien associated to realistic possible major earthquakes. Our findings show that almost 50 % of the building stock of both cities would result uninhabitable due to structural damage. Around 80 % of the buildings in both cities have reinforced concrete structure with concrete block infill; however, the presence of masonry buildings becomes significant (between 25 and 45 % of the reinforced concrete buildings) in rural areas and informal settlements on the outskirts, where the estimated damage is higher. The influence of the soil effect on the damage spatial distribution is evident in both cities. We have found that the percentage of uninhabitable buildings in soft soil areas may be double the percentage obtained in nearby districts located in hard soil. These results reveal that a new seismic catastrophe of similar or even greater consequences than the 2010 Haiti earthquake might happen if the earthquake resilience is not improved in the country. Nowadays, the design of prevention actions and mitigation policies is the best instrument the society has to face seismic risk. In this sense, the results of this research might contribute to define measures oriented to earthquake risk reduction in Haiti, which should be a real priority for national and international institutions.This work was developed thanks to the financial support of the Technical University of Madrid, through the series of projects SISMO-HAITI

    Effectiveness of Fosfomycin for the Treatment of Multidrug-Resistant Escherichia coli Bacteremic Urinary Tract Infections A Randomized Clinical Trial

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    Importance The consumption of broad-spectrum drugs has increased as a consequence of the spread of multidrug-resistant (MDR) Escherichia coli. Finding alternatives for these infections is critical, for which some neglected drugs may be an option. Objective To determine whether fosfomycin is noninferior to ceftriaxone or meropenem in the targeted treatment of bacteremic urinary tract infections (bUTIs) due to MDR E coli. Design, Setting, and Participants This multicenter, randomized, pragmatic, open clinical trial was conducted at 22 Spanish hospitals from June 2014 to December 2018. Eligible participants were adult patients with bacteremic urinary tract infections due to MDR E coli; 161 of 1578 screened patients were randomized and followed up for 60 days. Data were analyzed in May 2021. Interventions Patients were randomized 1 to 1 to receive intravenous fosfomycin disodium at 4 g every 6 hours (70 participants) or a comparator (ceftriaxone or meropenem if resistant; 73 participants) with the option to switch to oral fosfomycin trometamol for the fosfomycin group or an active oral drug or parenteral ertapenem for the comparator group after 4 days. Main Outcomes and Measures The primary outcome was clinical and microbiological cure (CMC) 5 to 7 days after finalization of treatment; a noninferiority margin of 7% was considered. Results Among 143 patients in the modified intention-to-treat population (median [IQR] age, 72 [62-81] years; 73 [51.0%] women), 48 of 70 patients (68.6%) treated with fosfomycin and 57 of 73 patients (78.1%) treated with comparators reached CMC (risk difference, −9.4 percentage points; 1-sided 95% CI, −21.5 to ∞ percentage points; P = .10). While clinical or microbiological failure occurred among 10 patients (14.3%) treated with fosfomycin and 14 patients (19.7%) treated with comparators (risk difference, −5.4 percentage points; 1-sided 95% CI, −∞ to 4.9; percentage points; P = .19), an increased rate of adverse event–related discontinuations occurred with fosfomycin vs comparators (6 discontinuations [8.5%] vs 0 discontinuations; P = .006). In an exploratory analysis among a subset of 38 patients who underwent rectal colonization studies, patients treated with fosfomycin acquired a new ceftriaxone-resistant or meropenem-resistant gram-negative bacteria at a decreased rate compared with patients treated with comparators (0 of 21 patients vs 4 of 17 patients [23.5%]; 1-sided P = .01). Conclusions and Relevance This study found that fosfomycin did not demonstrate noninferiority to comparators as targeted treatment of bUTI from MDR E coli; this was due to an increased rate of adverse event–related discontinuations. This finding suggests that fosfomycin may be considered for selected patients with these infections

    Column integrated water vapor and aerosol load characterization with the new ZEN-R52 radiometer

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    Producción CientíficaThe study shows the first results of the column-integrated water vapor retrieved by the new ZEN-R52 radiometer. This new radiometer has been specifically designed to monitor aerosols and atmospheric water vapor with a high degree of autonomy and robustness in order to allow the expansion of the observations of these parameters to remote desert areas from ground-based platforms. The ZEN-R52 device shows substantial improvements compared to the previous ZEN-R41 prototype: a smaller field of view, an increased signal-to-noise ratio, better stray light rejection, and an additional channel (940 nm) for precipitable water vapor (PWV) retrieval. PWV is inferred from the ZEN-R52 Zenith Sky Radiance (ZSR) measurements using a lookup table (LUT) methodology. The improvement of the new ZEN-R52 in terms of ZSR was verified by means of a comparison with the ZEN-R41, and with the Aerosol Robotic Network (AERONET) Cimel CE318 (CE318-AERONET) at Izaña Observatory, a Global Atmosphere Watch (GAW) high mountain station (Tenerife, Canary Islands, Spain), over a 10-month period (August 2017 to June 2018). ZEN-R52 aerosol optical depth (AOD) was extracted by means of the ZEN–AOD–LUT method with an uncertainty of ±0.01 ± 0.13*AOD. ZEN-R52 PWV extracted using a new LUT technique was compared with quasi-simultaneous (±30 s) Fourier Transform Infrared (FTIR) spectrometer measurements as reference. A good agreement was found between the two instruments (PWV means a relative difference of 9.1% and an uncertainty of ±0.089 cm or ±0.036 + 0.061*PWV for PWV <1 cm). This comparison analysis was extended using two PWV datasets from the same CE318 reference instrument at Izaña Observatory: one obtained from AERONET (CE318-AERONET), and another one using a specific calibration of the 940-nm channel performed in this work at Izaña Atmospheric Research Center Observatory (CE318-IARC), which improves the PWV product.European Community Research Infrastructure Action (grant 262254)Ministerio de Ciencia, Innovación y Universidades (project RTI2018-097864-B-I00

    Cuál es tu opinión. Conferencia sobre la Profesión de Ingeniero de Montes

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    Producción CientíficaDesde el Colegio se está organizando la Conferencia sobre la Profesión de Ingeniero de Montes, a celebrar a lo largo de dos jornadas en el mes de enero de 2016, con el objetivo de debatir y extraer conclusiones para iniciar actuaciones en relación con la situación actual de los estudios y títulos por un lado, y con el desarrollo de la profesión en el futuro por otro. Actualmente se está produciendo una reorganización de la formación universitaria y de la regulación del ejercicio profesional. Por este motivo sería interesante reflexionar sobre temas como los nuevos títulos de Grado y Máster Ingeniero de Montes, y los cambios en el marco legislativo que regula la actividad de la profesión.[Texto extraído del artículo de Joaquín Navarro Hevia]

    Activity-Oriented Antiedema Proprioceptive Therapy (TAPA) for Shoulder Mobility Improvement in Women with Upper Limb Lymphedema Secondary to Breast Cancer: A Multicenter Controlled Clinical Trial

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    Lymphedema, secondary to breast cancer (BCRL), is the abnormal accumulation of protein-rich fluid in the interstitium caused by a malfunction of the lymphatic system. It causes swelling, deficiencies in upper limb functions and structures, sensory pain and emotional alterations, which have a chronic course and affect the upper limb’s functionality. This study aims to verify the efficacy and efficiency in the upper limb´s functionality of a protocolized experimental approach based on occupational therapy, TAPA (activity-oriented proprioceptive antiedema therapy), in the rehabilitation of BCRL in stages I and II, comparing it with the conservative treatment considered as the standard, complex decongestive therapy (CDT), through a multicenter randomized clinical trial.The study has been financed in the call for competitive competition of research and innovation projects in the field of Primary Care, Regional Hospitals and High Resolution Hospital Centers of the Public Health System of Andalusia for the year 2021, of the Andalusian Public Foundation Progress and Health, according to the definitive list of funded projects, published on 23 December 2021, with EXP. No.: AP-0160-2021-C2-F2, also in the call for “Grants for research projects in Occupational Therapy. Call 2020”, granted by the Professional Association of Occupational Therapists of Extremadura (COPTOEX), Spain and, in 2020, received an economic contribution from the Research Group in Primary Health Care of Aragon (GAIAP-B21-17R group)

    Impact of Activity-Oriented Propioceptive Antiedema Therapy on the Health-Related Quality of Life of Women with Upper-Limb Lymphedema Secondary to Breast Cancer—A Randomized Clinical Trial

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    Alterations derived from lymphedema in the upper-limb secondary to breast cancer-related lymphedema (BCRL) decrease the health-related quality of life (HRQoL), but there is limited evidence of the impact of the different interventions on it. The aim of this research was to compare the effect of conventional treatment with another treatment based on Activity-Oriented Antiedema Proprioceptive Therapy (TAPA) on HRQoL in women diagnosed with BCRL.This research was funded by the Call for research and innovation projects in the field of primary care, regional hospitals and high-resolution hospital centres of the Public Health System of Andalusia in 2021 by the Progreso y Salud Foundation, of the Ministry of Health and Families of the Junta de Andalucía, with EXP. No.: AP-0160-2021-C2-F2. He has also been awarded a scholarship by the Professional Association of Occupational Therapists of Extremadura (COPTOEX) (Spain) call 2020 and awarded a financial contribution from the Research Group in Primary Health Care of Aragon (GAIAP-B21-17R group), recognized and financed by the Government of Aragón (Spain) and by Feder Funds “Another way of making Europe”

    Deliverable D2.1 - Ecosystem analysis and 6G-SANDBOX facility design

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    This document provides a comprehensive overview of the core aspects of the 6G-SANDBOX project. It outlines the project's vision, objectives, and the Key Performance Indicators (KPIs) and Key Value Indicators (KVIs) targeted for achievement. The functional and non-functional requirements of the 6G-SANDBOX Facility are extensively presented, based on a proposed reference blueprint. A detailed description of the updated reference architecture of the facility is provided, considering the requirements outlined. The document explores the experimentation framework, including the lifecycle of experiments and the methodology for validating KPIs and KVIs. It presents the key technologies and use case enablers towards 6G that will be offered within the trial networks. Each of the platforms constituting the 6G-SANDBOX Facility is described, along with the necessary enhancements to align them with the project's vision in terms of hardware, software updates, and functional improvements

    Marco activo de recursos de innovación docente: Madrid

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    Una guía de espacios e instituciones para actividades educativas complementarias en enseñanza secundaria y Formación Profesional
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