Search

aixo es una prova

Tras tres años de iniciada la pandemia, cientos de ollas y merenderos populares sostienen su accionar comunitario en Uruguay. Desde un equipo de la Universidad de la República, hemos acompañado y sistematizado diferentes aristas de estas tramas comunitarias que, centradas en el alimento, politizan la vida cotidiana de diferentes barrios en todo el país. En este artículo presentamos los resultados del relevamiento cuantitativo realizado a nivel nacional en 2022 y aportamos algunas claves interpretativas en base al trabajo de campo cualitativo llevado adelante en este tiempo. Entre los hallazgos, se resalta que, a pesar de que el número de iniciativas disminuye frente a las relevadas en 2020, se mantiene la cantidad de porciones servidas, y el esfuerzo pasa a concentrarse en merenderos para niños/as y adolescentes. Son mayoritariamente las mujeres quienes realizan este trabajo cotidianamente desde organizaciones vecinales y familiares, en una ambivalencia entre la sobrecarga y la estereotipia de los roles de género, y la politización de la alimentación como problema que se vuelve público-común. Se señalan también elementos que permiten comprender la relevancia de las redes de ollas y merenderos populares en el sostenimiento material, afectivo y como legitimador social ante los cambios y embates que se han dado en diferentes etapas de respuesta de las políticas públicas. Por último, se esbozan algunas reflexiones sobre la potencia de estos entramados comunitarios para politizar diferentes dimensiones de la vida cotidiana en los barrios, tensionando las visiones centradas en el Estado, y las soluciones que remiten exclusivamente al trabajo asalariado y el consumo individual.

An intermediate depth intraplate earthquake with Mw 6.2 was generated in the Guatemalan subduction zone on 16 February 2022 with epicenter to Southwest of the department of Escuintla. More than 275 aftershocks were registered, which were relocated with the HypoDD algorithm, being able to identify a fault with an area of ~350 km2, which is considerably higher than expected for an earthquake of that magnitude. The moment tensor at the centroid of the main earthquake and the estimation of other focal mechanisms of the largest aftershocks, allowed us to identify extension earthquakes, related to the fault plane, and compression earthquakes that were associated with seismicity on the upper part of the slab. The region of the sequence has presented high seismic activity in recent years. It is proposed that the mainshock nucleated in the lower seismicity layer (LSL) of the double seismicity zone proposed for the region, triggering seismic activity on a pre-existing active fault, also triggering seismic activity in the upper seismicity layer (USL). The separation between these seismicity layers was estimated to be 12.2±5.0 km.

Animal collective behavior is often modeled with self-propelled particles, assuming each individual has “omniscient” knowledge of its neighbors. Yet, neighbors may be hidden from view and we do not know the effect of this information loss. To address this question, we propose a visual model of collective behavior where each particle moves according to bioplausible visual cues, in particular the optic flow. This visual model successfully reproduces three classical collective behaviors: swarming, schooling, and milling. This model offers a potential solution for controlling artificial swarms visually.

Immersive Learning (iL) is known as a recent area of research that uses three-dimensional virtual environments and multi-sensory devices, also known as immersive technologies, to support the improvement of learning outcomes. This work aims to obtain evidence of theoretical and technological aspects of iL from the Symposium on Virtual and Augmented Reality (SVR) publications. A Systematic Literature Mapping protocol was developed and executed in order to select the primary studies to perform the analysis and data extraction. 76 primary studies helped to answer the research questions. A large part of the contributions by the SVR community are virtual environments that support education in the health area. In addition, some gaps and research opportunities were identified: virtual environments that serve audiences with special needs; development frameworks that consider pedagogical aspects; the use of biometric measures to support the validation of improved learning outcomes and more flexible tools that support educators in the development of immersive virtual environments that do not require specific knowledge in coding or 3D modeling.

Hypertension and diabetes development had been characterized as idiopathic disorders tightly interconnected, and therefore it is essential to understand how the functionality of neurohormonal pathways are involved in both diseases. Hypertensive and diabetic patients have shown increased systolic blood pressure (SBP), oxidative stress, vascular hypertrophy, and remodeling. It is well established that the long-term consumption of red wine and/or polyphenol-stilbene causes cardioprotective and antihypertensive effects; however, some functions remain unrevealed. Downstream pathways such as reactive oxygen species (ROS), sympathoadrenal axis represented by β1-adrenoceptors, and renin–angiotensin system via angiotensin-II receptors critically contribute to hypertension development. Aims This raised the issue of whether in vivo long-term red wine treatment can act as a modulator of these targets. Main methods We monitored SBP, glucose tolerance, oxidative stress, and cardiovascular function. Aortic and atrial tissues from normotensive-WKY, hypertensive-SHR, and diabetic-STZ animals, chronically exposed to red wine (3.715 ml/kg/v.o/day) or alcohol (12%) for 21-days, were used to measure contractile/relaxation responses by force transducers. Key findings: red wine, but not alcohol, prevented the increase of SBP and hyperglycemic peak. Additionally, was observed prevention of oxidative stress metabolites formation and an improvement in ROS scavenging antioxidant capacity of SHR. We also revealed that red wine intake enhances the endothelium-dependent relaxation, decreases the hypercontractile mediated by angiotensin-II in the aorta, and via β1-adrenoceptors in the atrium. Significance The long-term consumption of red wine can improve oxidative stress and the functionality of angiotensin-II and β1-adrenoceptors, inspiring new pharmacologic and dietetic therapeutic approaches for the treatment of hypertension and diabetes. Abbreviation Acronyms and/or abbreviations: [Ca2+]cyt = Cytosolic Ca2+ Concentration; ACh = Acetylcholine; ANG II = Angiotensin II; AT1 = ANG II type 1 receptor; AUC = Area Under the Curve; Ca2+ = Calcium; Endo + = Endothelium Intact; Fen = Phenylephrine (1 μM); GTT = Glucose Tolerance Test; ISO = Isoprenaline (isoproterenol); KHN = Krebs-Henseleit Nutrient; LA = Left Atria; LH = Lipid Hydroperoxide; NO = Nitric Oxide; RA = Right Atria; RAS = Renin-Angiotensin System; ROS = Reactive Oxygen Species; SBP = Systolic Blood Pressure; SHR = Spontaneously Hypertensive Rats; STZ = Streptozotocin; WKY = Normotensive Wistar Kyoto Rats.

Collective actions occur all around the world and, in the last few years, even more frequently. Previous literature has mainly focused on the antecedents of collective actions, but less attention has been given to the consequences of participating in collective action. Moreover, it is still an open question how the consequences of collective action might differ, depending on whether the actions are perceived to succeed or fail. In two studies we seek to address this gap using innovative experimental studies. In Study 1 (N = 368) we manipulated the perceptions of success and failure of a collective action in the context of a real social movement, the Chilean student movement from last decade. In Study 2 (N = 169), in addition to manipulating the outcome, we manipulated actual participation, using a mock environmental organization aiming to create awareness in authorities, to test the causal effect of both participation and success/failure on empowerment, group efficacy, and intentions of future involvement in normative and non-normative collective actions. Results show that current and past participation predict overall participation in the future, however, in Study 2 the manipulated participation was associated with having less intentions of participating in the future. In both studies, perception of success increases group efficacy. In Study 1, we found that when facing failure, participants increase their willingness to participate more in the future as opposed to non-participants that actually decrease theirs. In Study 2, however, failure increases the perception of efficacy for those with a history of non-normative participation. Altogether these results highlight the moderating role of the outcome of collective action to understand the effect of participation on future participation. We discuss these results in light of the methodological innovation and the real world setting in which our studies were conducted.

En este articulo compartimos nuestras experiencias en la integracion de insectos comestibles en la cocina occidental, enfocandonos en el aspecto arquitectonico de la crianza de estos en el ambiente urbano, dando testimonio de nuestro propio cultivo en un entorno cerrado –un departamento– y en jardines publicos al aire libre.

People's interest in health issues has stimulated the development of healthcare-oriented technology products. For the process of developing and using e-health technologies, it is necessary to know the challenges and facilitators for their implementation and wide acceptance. this research aims to identify, among the e-health technologies that are already available in the literature, what are the barriers for implementation/adoption of these technologies, as well as the main benefits arising from their use. In order to identify research opportunities on the subject of e-health, the method of systematic literature review was performed using the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) methodological approach. 130 records are considered for the review. The results obtained about barriers and benefits were structured from the sociotechnical (social - people/society; technical - machines/technology) systems approach. As a result, we expect to identify perspectives for the direction of new products development and opportunities for future research.

As a solidarity response to the food crisis, 700 soup kitchens and picnic areas were created by various community networks in different parts of Uruguay in 2020. In the context of preventive confinement measures —as a result of COVID-19— people found ways to organize themselves to fight hunger, preparing and distributing 8 million portions of food in four and a half months. This article takes a global perspective on this common action, based on the systematization of a national survey of 433 initiatives implemented between August and October. It presents the existing heterogeneity based on the profile of their organizers, dynamics and links, in order to raise some questions about the meanings and horizons in dispute that are beginning to emerge.

La formación inicial docente por competencias representa un enfoque formativo que las universidades chilenas han establecido para estructurar el marco curricular de sus titulaciones. Este enfoque presenta un diseño no disciplinar y, por tanto, más orientado al desempeño profesional. El presente estudio tiene como objetivo identificar el nivel de desarrollo percibido de tres competencias específicas (la competencia de corporeidad, la planificación y el uso de la tecnología) durante el Prácticum de la formación universitaria inicial de la carrera de educación física por parte de los tutores universitarios, tutores de centro y los estudiantes en una universidad chilena el año 2020. En un estudio de caso y mediante la administración de un cuestionario, los resultados muestran niveles sensibles de desarrollo en las tres competencias analizadas, aunque se desarrollan de forma diferente según la tipología del Prácticum. Se ratifica que el Prácticum es determinante para el desarrollo de competencias según sus protagonistas.

Smart meters are IoT devices that play a central role in smart cities. However, consumers' acceptance of these smart meters is crucial for the smart meter'’s implementation and sustainable use of resources. Despite the need to further understand what influences the acceptance of smart meters, only a few studies tackle this issue, none of them in South America. This article seeks to investigate which factors influence the acceptance of smart meters by consumers in Brazil to provide insights into public policies that help in smart meter implementation projects. This work features a survey (N = 144) in the city of Florianópolis, the capital of Santa Catarina, that comprises items derived from research and technology acceptance models, mainly the UTAUT2 model. PLS-SEM method is used to assess the influence relations on acceptance and the moderation of these relations by gender, age, and years of formal education of respondents. Social Influence is estimated as one of the main factors for the acceptance of smart meters in Florianópolis, something not foreseen in previous research on this topic. Another surprising result is the lack of influence from Performance Expectancy. This study presents a detailed acceptance model based on the survey carried out, and specific strategies for public policies are given based on the constructed acceptance model.

Objective: To report a series of atypical presentations of Aicardi–Goutières syndrome. Methods: Clinical, neuroimaging, and genetic data. Results: We report a series of six unrelated patients (five males) with a subacute loss of developmental milestones, pyramidal signs, and regression of communication abilities, with onset at ages ranging from 7 to 20 months, reaching a nadir after 4 to 24 weeks. A remarkable improvement of lost abilities occurred in the follow-up, and they remained with residual spasticity and dysarthria but preserved cognitive function. Immunization or febrile illness occurred before disease onset in all patients. CSF was normal in two patients, and in four, borderline or mild lymphocytosis was present. A brain CT scan disclosed a subtle basal ganglia calcification in one of six patients. Brain MRI showed asymmetric signal abnormalities of white matter with centrum semi-ovale involvement in five patients and a diffuse white matter abnormality with contrast enhancement in one. Four patients were diagnosed and treated for acute demyelinating encephalomyelitis (ADEM). Brain imaging was markedly improved with one year or more of follow-up (average of 7 years), but patients remained with residual spasticity and dysarthria without cognitive impairment. Demyelination relapse occurred in a single patient four years after the first event. Whole-exome sequencing (WES) was performed in all patients: four of them disclosed biallelic pathogenic variants in RNASEH2B (three homozygous p.Ala177Thr and one compound heterozygous p.Ala177Thr/p.Gln58*) and in two of them the same homozygous deleterious variants in RNASEH2A (p.Ala249Val). Conclusions: This report expands the phenotype of AGS to include subacute developmental regression with partial clinical and neuroimaging improvement. Those clinical features might be misdiagnosed as ADEM.

Luciano Berio’s Sequenza XI stands as a major work in the 20th-century guitar repertoire. Although it has been extensively analysed in previous scholarship, its performance practice has not been addressed. In this paper, I set out to fill this gap by analysing fifteen commercial recordings of the work, and furthermore seek to demonstrate how different categories of musical time- experience (after UTZ, 2017) can be used as a frame for discussing performers’ interpretative decisions. I propose a formal analysis of the work and provide time-based measurements of the score, which I then compare to the performed sound structures. The results allow me to map the main trends in the performance practice of Sequenza XI in commercial recordings produced between 1993 and 2016, as well as to relate these trends to the discourses of the performers involved.

The aim of this study is to make the case for the creative practice of performance of notated music as research. Discourses and problems on the relation between artistic practice and research are discussed, as originally posed in the UK and Europe, examining the particular issues of music performance through current models. The role of music analysis is particularly considered, as well as the importance of embodied knowledge (also known as tacit knowledge) on these interpretive processes. These models are applied into the author’s own practice through two case studies from complex repertoire for solo guitar with pieces by Brian Ferneyhough and Wieland Hoban. The epistemological contribution of these models is assessed, as well as their impact upon sound as exemplified in a variety of multimedia files showcasing performances of the author as well as other performers. After claiming that the aim of practice-as-research is making explicit the tacit, the pertinence of the model here delineated is interrogated on these terms.

El propósito es sistematizar las prácticas y estrategias de evaluación de docentes evaluados como excelentes por sus estudiantes y directores en un marco de formación basado en competencias. Después de algunos años de recorrido en este enfoque en la universidad de estudio, y a docentes evaluados como excelentes, se les realizan entrevistas, en el marco de una investigación cualitativa. A partir del análisis de discurso se recuperan categorías de análisis que describen estrategias, instrumentos, formas de gestionar la evaluación, así como dificultades. La información recuperada muestra que ha existido un proceso de aprendizaje por parte del profesorado marcando estilos y formas de llevar a cabo este proceso. Actualmente la evaluación es parte del proceso formativo y acorde con concepciones y acciones ligadas a la retroalimentación, la oportunidad de mejora, incentivar procesos metacognitivos y estrategias ligadas a situaciones de evaluación auténtica. Son estas acciones, según los docentes, las que potencian el desarrollo de las competencias.

Some disagreements seem to be persistent: they are, pretty much, immune to persuasive argumentation. If that is the case, how can they be overcome? Can argumentation help us? I propose that to overcome persistent disagreements through argumentation, we need a dynamic and pluralistic version of argumentation. Therefore, I propose that argumentation, more than a tool that uses persuasion to change the mind of the counterpart, is a toolbox that contains persuasion, deliberation, negotiation, and other dialogical strategies that can be used to reach an agreement.

As part of a campus-wide prevention program, the Pontificia Universidad Católica de Chile (PUC) implemented a cross-sequential survey on sexual violence. In this article, we report data from the first wave (2018; N = 2,046) from three cohorts of undergraduates (Year 1, n = 792; Year 2, n = 601; Year 3, n = 653). We found an overall twelve-month prevalence for victimization experiences of 18.7 percent (4.3 percent by force or threat of force; 12.9 percent while unable to resist; 7.1 percent by verbal pressure; multiple responses allowed). Women (22.9 percent) were victimized more frequently than men (9.7 percent). Among women, victimization rates were highest for Year 1 students (25.7 percent), intermediate for Year 2 (22.3%), and lowest for Year 3 (19.8 percent). Only 10.9 percent of reported incidents happened in a university context. In most cases, perpetrators were male (88.9 percent) and known to the victim (72.1 percent); 24.4 percent were partners, 35.5 percent were friends. We present additional data on risk factors and attitudinal correlates. We also discuss our findings in relation to previous research suggesting higher prevalence rates at Chilean universities, considering differences in methodology and implications for future research.

El artículo presenta una postura crítica a las estrategias de transformación política centradas en el Estado, comprendiendo la forma estatal a partir de su pretensión monopólica, cuyo objetivo central es inhibir y racionalizar los impulsos autodeterminativos y de insubordinación. Propone una invitación: producir un desplazamiento analítico hacia las experiencias autodeterminativas de los vencidos. Las estrategias estadocéntricas constituyen un bloqueo epistemológico y político en el cual se desvanecen repetidamente múltiples esfuerzos y energías intelectuales y políticas.

Las infecciones del sitio quirúrgico (ISQ) son una complicación frecuente en cirugía general. Generan múltiples problemas para el paciente y aumentan los costos en salud. Existe una carencia de datos a nivel nacional sobre dicha patología. El objetivo general del estudio fue determinar la incidencia de infecciones tipo I y II de la clasificación del Centers for Disease Control and Prevention en pacientes postoperatorios de cirugía abdominal y vascular periférica internados en el Hospital Pasteur, entre julio y agosto de 2017. Los objetivos específicos fueron identificar los factores de riesgo, determinar los gérmenes más prevalentes, frecuencia de tratamiento con drenaje o antibioticoterapia y el tiempo medio entre la cirugía y el diagnóstico de ISQ. Se realizó un estudio observacional longitudinal prospectivo que incluyó a 99 pacientes. Se analizaron los datos utilizando regresión logística simple y múltiple mediante el software “R project”. La incidencia de infecciones fue de 11,11%. Diabetes mellitus (D.M.), estadía en CTI e institucionalización fueron factores de riesgo. La cirugía sucia se vinculó en forma liminal con la aparición de ISQ; la cirugía laparoscópica fue un factor protector. El microorganismo predominante fue E. Coli (42,85%), seguido de cultivos polimicrobianos (28,57%), Klebsiella Pneumoniae (14,28%) y Bacilos Gram Negativos no especificados (14,28%). En 36,6% de los pacientes infectados se administraron antibióticos, mientras que el 81,81% requirió drenaje. El tiempo medio entre la cirugía y la infección fue de 15,45 días. Se concluye que estos resultados deben ser considerados para la realización de investigaciones más exhaustivas y elaboración de protocolos pre y perioperatorios.

The Internet of Things (IoT) is a new technological paradigm that allows any object or thing to be connected to other things, services or people through the Internet. IoT brings tools for empowering working areas such as health, logistics, industry, security, agriculture and environment. In this paper, we introduce a comprehensive survey of IoT technologies, methods, statistics and success cases applied to healthcare. In the last section its talked about the work done in this subject on the Colombian context, including successful applications and current projects.

The solidification of the cocoa liquor is one of the most important steps for processing cocoa cultivars. This process is typically characterized as a continuous process, which may become a barrier for the randomization of the applied data treatments. This article aims at optimizing the factors that influence the processing of cocoa cultivars during solidification of liquor. Based on this, it was proposed, as a design of experiment (DOE), a three level factorial plan (23) with three repeated measurements. Treatments were organized in random blocks with divided-cells (split-plot). The experiment presents the best combinations between the factors ‘pump flow’ and ‘conveyor speed’ for each kind of cocoa liquor. The application of this kind of design of experiments in other cases may contribute to optimizing processes with long set up times, such as the ones existent in the food processing industry.

The use of the best practice in New Product development process (PDP) is an alternative to promote Mass Customization (MC) strategy in the companies. This paper proposes a decision support system to identify the best practices for designing product features. The decision support system is applied in the service counters design project of a retail company. The results indicate the ability of the decision support system to select MC product design best practices according to the project design features and the project customization level.

In this article we present some clues to understand the dynamics of the urbanization promoted by the neoliberalism in Puebla, the centre area of Mexico, based on some recent policies, such as 1) the privatization of the water service; 2) land stripping and territory restructuring in the area of Angelopolis in order to build new real estate developments and; 3) the commodification of the Historic Centre patrimony due to tourism. Such processes have taken place as part of a group of transformations in the city economy, the role of the State and its relationship with the private capitals involved in certain urbanization projects; these have also generated a series of social struggles that have tried to resist such measures.

El síndrome de Down es la principal causa de discapacidad intelectual congénita; se caracteriza por retraso mental asociado a retardo del crecimiento y del desarrollo psicomotor, así como a algunas características físicas típicas. Se debe a la presencia de una tercera copia del cromosoma 21, siendo esta trisomía la aneuploidía cromosómica más común. Las mujeres con síndrome de Down tienden a ser menos fértiles y el embarazo en ellas es poco frecuente, aunque los datos estadísticos de este evento son limitados, y se asocia, además, a dificultades que terminan en aborto, parto prematuro y parto difícil. Se reporta el caso de un recién nacido prematuro con síndrome de Down, hijo de madre con el mismo diagnóstico, producto de un embarazo resultado de violación, evento que debe ser prevenido de forma oportuna en esta población de alto riesgo.

Purpose: This study aims to analyze the relationship between users' perceived barriers to using virtual and augmented reality technology from stakeholders, identifying perspectives and gaps regarding technology acceptance. Design/methodology/approach: The Decision-Making Trial and Evaluation Laboratory method is useful for quantitatively evaluating the causal relationship between factors. Combining this method with the grey approach ensures greater accuracy even with limited information. A Scoping Review was conducted to identify the barriers, and data were extracted from a questionnaire administered to experts in the field. Findings: Seven diverse barriers were identified by users, and cause-and-effect relationships were estimated. The results indicate three primary causal barriers and three highly dependent barriers. One of the identified barriers is not relevant in this model. Originality/value: Virtual and augmented reality technologies have been gaining popularity since 2018, allowing users to interact with a virtual environment. These technologies are primarily used in training and education areas. However, due to the innovative nature of the topic, there are a small number of studies on technology acceptance, especially in the Brazilian context. Therefore, this paper contributes to the literature and assists in applying technologies in industries.

El desempeño profesional del profesorado universitario transcurre a lo largo de tensiones entre sus diversas funciones, especialmente entre la docencia y la investigación. Es bien sabido que al menos desde las dos últimas décadas, la Universidad española incentiva y valora más, en los diversos sistemas de promoción, el curriculum fruto de la investigación que el de la docencia. Presentamos los resultados referidos a la dualidad docencia‐investigación de la investigación realizada cuyo objetivo principal es estudiar la cultura organizacional de las universidades catalanas. La metodología utilizada es de corte cuantitativo‐cualitativo para la cuál se confecciona adhoc un cuestionario y un guión de entrevista semiestructurada. Los resultados nos indican que se percibe una cultura universitaria docente que debe cambiar hacia perfiles de intervención entre profesorado y alumnado más interactivos, ampliando el uso de materiales didácticos con soporte TIC, con sistemas evaluativos más diversos y centrados en las competencias a adquirir y menos en los contenidos memorísticos. Respecto a la cultura universitaria investigadora se percibe la necesidad de la internalización de la investigación, mayor participación en convocatorias competitivas nacionales, europeas e internacionales y en la publicación de los resultados en revistas de contrastado prestigio internacional. Y en relación a la primacía de la investigación sobre la docencia la percepción es de descontento. En conclusión tanto desde la percepción del propio profesorado como de los expertos entrevistados como del análisis de los proyectos institucionales de las universidades se desprende la necesidad de un cambio en las competencias docente e investigadora del profesorado universitario.

Este artículo presenta los resultados de una investigación cuyo objetivo principal es examinar el desarrollo de la dirección de los órganos unipersonales de gestión académica en la universidad, más concretamente se centra en las particularidades de directores de centro y departamento. Se ha optado por una metodología cualitativa y los datos se obtuvieron a partir de 23 entrevistas y un grupo focal de discusión. Los resultados obtenidos indican que se pueden identificar tres fases en el desempeño de la función directiva de estos cargos. Una etapa inicial, caracterizada por la necesidad de familiarizarse con el cargo, comprender las dinámicas institucionales y en la que se ejerce un liderazgo de baja intensidad. Una segunda etapa, la más extensa en el tiempo, donde la actividad se orienta al desarrollo del proyecto y se caracteriza por una gran dedicación al apoyo y asesoramiento del profesorado. En la tercera etapa aparece la preocupación por asegurar el relevo institucional y por hacer evaluación del impacto de los logros alcanzados.

Most lecturers and professors involved in teaching School Management and Education Management courses have been engaged in developing some innovative actions to improve the training quality that we offer to students in the Pedagogy degree at the Autonomous University of Barcelona. These actions are aimed at increasing co-ordination among the teaching staff when designing and implementing the course curricula. Co-ordination meetings, exchanges of teaching experiences, discussions about what, how and when to teach the different contents, in which courses and at what level, methodological issues pointed out through technical description cards or the elaboration of study cases to be solved have become the basis of relevant actions during the last academic years. This paper explains each one of them, and provides useful information about the theoretical background, the process carried out, some of the results obtained, the output and the tools created.

The present study was carried out for 6 week with Nile tilapia, Oreochomis niloticus, fingerlings (0.77 ± 0.04 g) to assess the effects of moderate CaCO3 liming on water pH, total alkalinity, calcium hardness, free CO2 and total ammonia, as well as on fish finalbody weight, final body length, survival and FCR. Eighteen 25-L polyethylene aquaria were used to hold the experimental fish (15 fish per aquarium). Nine aquaria were set in the lab’s indoor room and nine aquaria in its outdoor area. Two types of water (clear or green) and three different water quality managements (none, HCl acidification and CaCO3 liming) were evaluated simultaneously in a 3 x 2 factorial design. The application of analytical calcium carbonate at 1 g 10 L-1 in the clear or green waters has produced superior Niletilapia fingerlings’ final body weight and length. The best set of limnological conditions that improved Nile tilapia fingerlings growth was the following: pH: 7.4-8.2; total alkalinity > 50 mg L-1; calcium hardness > 140 mg L-1; free CO2 < 7 mg L-1. The total ammoniaconcentration in fish aquaria was not affected by CaCO3 liming (p > 0.05).O presente estudo foi realizado por seis semanas, com alevinos de tilápia do Nilo, Oreochromis niloticus (0,77 ± 0,04 g), para se avaliar os efeitos da calagem moderada da água com CaCO3 no pH, alcalinidade total, dureza cálcica, concentrações de CO2 livre e amônia total da água, assim como peso final, comprimento total final, sobrevivência e FCA dos peixes cultivados. Dezoito aquários de polietileno de 25 L foram utilizados para se manter os peixes experimentais (15 peixes por aquário). Nove aquários foram instalados na sala interna do laboratório e nove, na sua área externa. Dois tipos de águas (claras ou verdes) e três diferentes manejos de qualidade de água (nenhum, acidificação com HCl ou calagem com CaCO3) foram avaliados simultaneamente em delineamento fatorial 3 x 2. A aplicação de CaCO3 p.a. em 1 g 10 L-1 em águas claras ou verdes resultou em peso final e comprimento total significativamente maiores. As condições limnológicas que propiciaram os melhores resultados zootécnicos foram as seguintes: pH = 7,4-8,2; alcalinidade total > 50 mg L-1; dureza cálcica > 140 mg L-1; CO2 livre < 7,0 mg L-1. A concentração de amônia total nos aquários não foi afetada pela calagem com CaCO3.

El colectivo de profesores implicados en materias de Organización Educativa en la licenciatura de Pedagogía de la Universidad Autónoma Barcelona desarrolla diversas acciones dirigidas a favorecer la calidad de la formación de los estudiantes, a partir de una mayor coordinación en la confección y desarrollo de los programas. Las reuniones de coordinación, el intercambio desarrollado de experiencias, el debate sobre la distribución de contenidos por materias y ciclos, la acotación metodológica mediante fichas o la elaboración de casos para su resolución han sido actuaciones destacadas en los últimos cursos académicos. El presente texto las describe, delimitando también las bases de actuación, el proceso realizado, algunos de los resultados y los productos elaborados.

This paper presents a novel system based on the Internet of Things (IoT) to Human Activity Recognition (HAR) by monitoring vital signs remotely. We use machine learning algorithms to determine the activity done within four pre-established categories (lie, sit, walk and jog). Meanwhile, it is able to give feedback during and after the activity is performed, using a remote monitoring component with remote visualization and programmable alarms. This system was successfully implemented with a 95.83% success ratio.

El presente artículo pretende sintetizar algunas consideraciones técnicas, legislativas y pedagógicas sobre los planes de autoprotección y su potencial educativo. Partimos, por tanto, del valor de la cultura de la prevención como un enfoque de la seguridad en los establecimientos docentes que han visto evolucionar los postulados sobre esta área, desde planteamientos extremos claramente terapéuticos, hasta enfoques más recientes de orientación específica y preventiva. Se revisa también la evolución normativa y pedagógica de los planes de autoprotección, los cuales, en el marco de una escuela que promueve la seguridad, se convierten, además de en un protocolo de gestión, en un instrumento para concienciar y educar en los hábitos y en las pautas para llevar una vida saludable y más segura. Finalmente, se analiza la estructura de los planes de autoprotección desde un enfoque cultural basado en la seguridad integral.