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2. Agenda. Call for papers: “III Congreso Internacional Compra Pública Verde y Cambio Climático”, 4 y 5 de octubre de 2023, Universidad de Alcalá, Madrid.
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Mercadal Cuesta, David
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CLEAN energy , *GOVERNMENT purchasing , *ENERGY infrastructure , *GREEN infrastructure , *ENERGY consumption - Abstract
The University of Alcalá in Madrid will organize the "III International Congress on Green Public Procurement and Climate Change" on October 4th and 5th, 2023. The congress aims to receive oral communications on topics related to green public procurement and climate change, as well as tangential aspects such as sustainable food, legislation on climate change, public procurement and depopulation, sustainable infrastructure and energy efficiency, and sustainable or low-emission mobility. The Scientific Committee will review the communications and select the best ones for possible publication in the journal Actualidad Jurídica Ambiental. The deadline for submitting abstracts is May 15th, 2023. [Extracted from the article]
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- 2023
3. The effect of short‐term rentals on local consumption amenities: Evidence from Madrid.
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Hidalgo, Alberto, Riccaboni, Massimo, and Velázquez, Francisco J.
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ELECTRONIC commerce , *RESTAURANT personnel , *CITIES & towns , *NEW employees , *ECONOMIC impact - Abstract
This paper examines the impact of the arrival of Airbnb on local consumption amenities in Madrid. We exploit the exogenous variation created by the timing and uneven distribution of Airbnb listings in the city to determine the impact on food and beverage establishments. Using an instrumental variable strategy, we find positive local effects on both the number of restaurants and their employees: an increase of 14 Airbnb rooms in a given census tract leads to almost one more restaurant, and the same increase in a given neighborhood generates 11 new tourist‐related employees. The results are robust to the specification and sample composition. This paper contributes to the literature on the economic impact of the platform economy on urban areas by providing evidence of market expansion externalities from short‐term rentals. [ABSTRACT FROM AUTHOR]
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- 2024
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4. El espacio en el tiempo. Geografía e historiografía en la antigua Grecia: Edited by Francisco J. González Ponce and Antonio L. Chávez Reino. Estudios Clásicos 160. Madrid: Sociedad Española de Estudios Clásicos, 2021. ISSN 0014-1453. Pp. 227 (paper). Fully accessible online via http://www.estudiosclasicos.org/eclas-numero/?issue=estudios-clasicos-160-2021
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Bucciantini, Veronica
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HISTORICAL geography , *HISTORY of geography , *GEOGRAPHERS , *LATIN literature - Published
- 2023
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5. Fft-asvr: an adaptive approach for accurate prediction of IoT data streams.
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Maurya, Manish Kumar, Singh, Vivek Kumar, Shaw, Sandeep Kumar, and Kumar, Manish
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INTERNET of things , *PREDICTION models , *FAST Fourier transforms - Abstract
In IoT applications, prediction models have fundamental challenges such as real-time processing, producing results with considerable/without delay, and taking action against pattern drift. While existing models can excel when data statistics remain relatively stable, real-time systems may encounter difficulties, particularly when confronted with dynamic shifts in data behavior. Analyzing data streams generated by different IoT applications and detecting complex pattern on the fly has become an open area of research. Complex event processing with adaptivity is a must to get desired features in such models. To address this issue, a comprehensive model for prediction has been proposed in this paper. It consists of two phases: (1) the basic model is constructed using historical data, (2) a fast Fourier transform-based adaptive support vector regression (FFT-ASVR) approach is proposed to predict events embedded in IoT data streams. FFT-ASVR predicts abnormal events by experiencing a change in data streams with real-time model updation. The performance of FFT-ASVR with a similar existing method SVM-RBF is presented using real-time traffic data of Madrid city. The proposed approach has significant improvement in terms of mean absolute percentage error (MAPE) for prediction, is adaptive in nature, and is also capable of handling the issue of pattern drift. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Detailed parallel social modeling for the analysis of COVID-19 spread.
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Cublier Martínez, Aymar, Carretero, Jesús, and Singh, David E.
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COVID-19 pandemic , *DISTRIBUTED algorithms , *AGE groups , *PARALLEL algorithms , *PARALLEL processing , *SOCIOECONOMIC factors - Abstract
Agent-based epidemiological simulators have been proven to be one of the most successful tools for the analysis of COVID-19 propagation. The ability of these tools to reproduce the behavior and interactions of each single individual leads to accurate and detailed results, which can be used to model fine-grained health-related policies like selective vaccination campaigns or immunity waning. One characteristic of these tools is the large amount of input data and computational resources that they require. This relies on the development of parallel algorithms and methodologies for generating, accessing, and processing large volumes of data from multiple data sources. This work presents a parallel workflow for extending the social modeling of EpiGraph, an agent-based simulator. We have included two novel parallel social generation stages that generate a detailed and realistic social model and one new visualization stage. This work also presents a description of the algorithms used in each stage, different optimization techniques that permit to reduce the application convergence time, and a practical evaluation of large workloads on HPC systems. Results show that this contribution can be efficiently executed in parallel architectures and the results allow to increase the simulation detail level, representing a significant advance in the simulator scenario modeling. As a summary of results, the first contribution of this paper is the development of two models (a spatial and a social one) that assign geographical and socioeconomic indicators to each simulated individual (i.e., agents), reproducing the real social distribution of the city of Madrid. The second contribution presents an improved parallel and distributed algorithm that executes the two aforementioned models using different parallelization strategies and preserving the load balance. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Explainable hypoglycemia prediction models through dynamic structured grammatical evolution.
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De La Cruz, Marina, Garnica, Oscar, Cervigon, Carlos, Velasco, Jose Manuel, and Hidalgo, J. Ignacio
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HYPOGLYCEMIA , *PREDICTION models , *PEOPLE with diabetes , *DYNAMIC models , *BLOOD sugar , *EXTREME value theory , *INSULIN , *HYPERGLYCEMIA - Abstract
Effective blood glucose management is crucial for people with diabetes to avoid acute complications. Predicting extreme values accurately and in a timely manner is of vital importance to them. People with diabetes are particularly concerned about suffering a hypoglycemia (low value) event and, moreover, that the event will be prolonged in time. It is crucial to predict hyperglycemia (high value) and hypoglycemia events that may cause health damages in the short term and potential permanent damages in the long term. This paper describes our research on predicting hypoglycemia events at 30, 60, 90, and 120 minutes using machine learning methods. We propose using structured Grammatical Evolution and dynamic structured Grammatical Evolution to produce interpretable mathematical expressions that predict a hypoglycemia event. Our proposal generates white-box models induced by a grammar based on if-then-else conditions using blood glucose, heart rate, number of steps, and burned calories as the inputs for the machine learning technique. We apply these techniques to create three types of models: individualized, cluster, and population-based. They all are then compared with the predictions of eleven machine learning techniques. We apply these techniques to a dataset of 24 real patients of the Hospital Universitario Principe de Asturias, Madrid, Spain. The resulting models, presented as if-then-else statements that incorporate numeric, relational, and logical operations between variables and constants, are inherently interpretable. The True Positive Rate and True Negative Rate metrics are above 0.90 for 30-minute predictions, 0.80 for 60 min, and 0.70 for 90 min and 120 min for the three types of models. Individualized models exhibit the best metrics, while cluster and population-based models perform similarly. Structured and dynamic structured grammatical evolution techniques perform similarly for all forecasting horizons. Regarding the comparison of different machine learning techniques, on the shorter forecasting horizons, our proposals have a high probability of winning, a probability that diminishes on the longer time horizons. Structured grammatical evolution provides advanced forecasting models that facilitate model explanation, modification, and retesting, offering flexibility for refining solutions post-creation and a deeper understanding of blood glucose behavior. These models have been integrated into the glUCModel application, designed to serve people with diabetes. [ABSTRACT FROM AUTHOR]
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- 2024
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8. New Evidence for the Bronze Age Zooarchaeology in the Inland Area of the Iberian Peninsula through the Analysis of Pista de Motos (Villaverde Bajo, Madrid).
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Estaca-Gómez, Verónica, Cruz-Alcázar, Rocío, Tardaguila-Giacomozzi, Silvia, and Yravedra, José
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BRONZE Age , *ZOOARCHAEOLOGY , *PENINSULAS , *ECONOMIC activity , *MIDDLE age - Abstract
Simple Summary: In this paper, we present the zooarchaeological and taphonomic study of a new Bronze Age site in the inland of the Iberian Peninsula. This study represents a significant contribution within the studied area, as it analyses the Pista de Motos faunal collection, one of the few representative samples from this period. This paper significantly contributes to completing the scarce information available for the Bronze Archaeology in the Middle Tagus Valley, located inland of the Iberian Peninsula. The Bronze Age zooarchaeological research for the interior and other regions of the Iberian Peninsula is currently limited. Despite several sites with known zooarchaeological profiles from the period, the main issue is that most of these derive from fragmentary and unrepresentative faunal records or are biased profiles from old excavations. New work has yielded novel zooarchaeological results in recent years that could help fill the existing zooarchaeological information gap in the Iberian inland, particularly in the Middle Tagus Valley. However, these projects are in the initial research stages and have not published much of their results. This paper presents the zooarchaeological profile of the Pista de Motos Bronze Age site to help fill this information gap. It analyses the taxonomic representation, skeletal profiles, and human activity patterns associated with faunal use. These observations suggest that animal exploitation at the site followed two primary purposes. One was linked to economic activities, mainly to obtain meat, milk, wool, or animal labour. The other was probably associated with symbolic-ritual practices suggested by the complete animal burials in some excavated units. We contextualise these interpretations with evidence from other Bronze Age sites in the Middle Tagus Valley. Finally, the paper assesses to what extent Pista de Motos is a relevant site for the zooarchaeology of the Bronze Age in the Iberian inland. [ABSTRACT FROM AUTHOR]
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- 2024
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9. THE IMAGE OF THE URBAN PEOPLE: VISUAL ANALYSIS OF THE SPATIALISED DEMOS OF LEFT-WING POPULISM IN MADRID.
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García Agustín, Óscar and Cossarini, Paolo
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CITY dwellers , *POLITICAL campaigns , *POLITICAL parties , *IMAGE analysis , *SCHOLARLY method , *PUBLIC spaces - Abstract
This paper focuses on the visual representation of "the urban people" by the Spanish leftwing populist party Unidas Podemos (UP) during the campaign for regional elections in Madrid in 2021. The political environment was characterised by increasing polarisation and the hyper-leadership of two candidates, right-wing Isabel Díaz Ayuso and UP's national leader Pablo Iglesias. In this context, UP employed a diverse range of images and audiovisual material with a specific focus on the urban dimension. This paper explores how the populist logic and societal split--the people vs. the elite--deployed by UP are visually represented and connected with the urban space. Drawing on the central role of images in politics, this paper contributes to the emerging scholarship on the visual and spatial dimensions of populism by (a) exploring the connections between populist imaginary, space, and the visual; (b) advancing an empirical analysis of the image of "the people" in a left-wing political party; and (c) connecting the imaginary of populism to its geo-graphical dimension, stressing both the urban and class divide. [ABSTRACT FROM AUTHOR]
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- 2023
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10. Optimization of a Pumping System Using Convex Hyperbola Charts: A Case Study Application in Tres Cantos, Madrid, Spain.
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Martin-Candilejo, Araceli and Martin-Carrasco, Francisco Javier
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WATER-supply engineering , *MATHEMATICAL optimization , *PUMPING stations , *POWER resources , *WATER supply , *HYPERBOLA - Abstract
The aim of this work is to analyze the applicability of a convex hyperbola chart's methodology to determine how many pumps should be working in a pumping station of a real case study to consume the least amount of energy. The applicability of the convex hyperbola charts is demonstrated, its effectiveness is shown, and a step-by-step exemplification is presented. Moreover, the order in which pumps should be activated is analyzed and discussed. The pumping station of the optimization is located in Tres Cantos, Madrid, Spain; it consists of a pumping station of four (+1 reserved) hydraulic pumps that take water from a reservoir and distribute it through a branched pipeline. The geometric height difference Hg of the case study is variable. This article also shows how the variability of Hg plays a major role in the optimal configuration of the pumping station. This paper also proves how the number of pumps to activate or disactivate does not necessarily need to be consecutive, meaning that activating or disactivating pumps one by one may not be the best solution. The convex hyperbola charts show how there can be circumstances in which skipping a certain number of pumps is the best solution. How the pump efficiency is distributed along the commercial pump plays a major role in determining which is the best configuration of active pumps. A straightforward and inexpensive optimization methodology for the optimization of the energy in a water supply system was proved and exemplified. This simple methodology can be applied by engineers in the operation of a water supply system when pumping is required, e.g., in agricultural systems or in underdeveloped areas where energy expenses need to be considered. [ABSTRACT FROM AUTHOR]
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- 2024
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11. Promoting sustainable growth and self‐production of energy through the water industry, as key elements for climate change action.
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Peral, David, Sánchez, Jorge, López, Paula, Vallés, Federico, and Fernández, Pascual
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CLIMATE change mitigation , *ENERGY consumption , *CLIMATE change , *CANALS , *WATER supply , *AUTOPOIESIS , *EXTREME weather - Abstract
The paper focuses on climate actions through water activity and energy synergies supporting a water public operator—Canal de Isabel II—to fight against climate change in the region of Madrid. Actions for its mitigation such as the generation of electricity through water treatment activity are undoubtedly a great tool to face climate change and mitigate CO2 emissions. Led by the Strategic Plan of Canal, a water & energy cycle has been designed that, taking advantage of the different processes carried out, and thanks to the appropriate technologies, allows the generation of 100% renewable electrical energy. Through its solar energy plan, Canal is making an important technological effort to reduce energy consumption, taking advantage of the extensive area the water company has for its operations. At the same time, wastewater solutions ans possibilities are becoming more attractive. This paper explains how the Canal is transforming biogas from wastewater treatment plants into fuel for vehicles. On adaptation, this document describes measures for increasing the availability of resources, reducing water consumption, and preparing for new challenges, provided that water remains an essential resource affordable and accessible to all. In this sense, Canal's main contribution and responsibility is to ensure its availability in the event of water scarcity and to avoid the effects of extreme weather phenomena. In addition, the paper presents important projects related to such adaptations as the tariff structure to discourage high superfluous uses of water or the water reclaimed production. This integrated approach to water and energy production and consumption represents an unbeatable strategy that is recommended for dealing with this global problem in a sustainable way. Canal's activities prove that a water company can aspire to be more sustainable through the implementation of integrated projects on the water and energy nexus. [ABSTRACT FROM AUTHOR]
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- 2023
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12. Fragmented spaces in the urban landscape: A socio-spatial analysis of educational supply in the city of Madrid.
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Bueno, Carlos and Bonal, Xavier
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SCHOOL choice , *EQUALITY , *RESIDENTIAL segregation , *EDUCATION policy - Abstract
The geography of school choice critically shapes families' educational opportunities. Residential segregation, social inequalities and the educational marketplace interact in complex ways and produce spatialised educational opportunities for families. This paper analyses the link between these dimensions and how they structure families' educational opportunities in the city of Madrid. Based on several administrative datasets that capture students' residential location, their socio-economic position, the schools they attend and the characteristics of school supply, our analysis reveals the uneven spatial distribution of the different school modalities in Madrid, where advantaged families and neighbourhoods have more diversified and socio-economically homogenous nearby schooling options. The results also depict the way the city is spatially divided along a continuum of 'privileged' residential and educational assets. The paper reflects on how reforms expanding school choice and diversification of the educational market undertaken by the regional government may have increased the link between residential and school segregation. [ABSTRACT FROM AUTHOR]
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- 2023
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13. The silent expansion of internationalisation: exploring the adoption of the International Baccalaureate in Madrid.
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Curran, Marta, Rujas, Javier, and Castejón, Alba
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INTERNATIONAL baccalaureate , *EDUCATION policy , *SOCIAL factors , *GLOBAL studies - Abstract
The growth of the International Baccalaureate (IB) worldwide is part of a global trend towards the internationalisation of education (IE). Its implementation, nonetheless, takes different forms depending on national and local contexts. This paper examines the recent expansion of the IB in Madrid, drawing upon the sociology of education policy enactments and recontextualisations and the Cultural Political Economy approach. Combining in-depth interviews, document analysis and secondary quantitative data, this paper shows why Madrid has led the expansion of IB schools in Spain in the last decade, an expansion, which has nonetheless remained relatively unnoticed. Our findings suggest that the growth and penetration of private international education initiatives such as the IB may be related to particular social factors, education system characteristics and education policy ensembles, with a particularly intense manifestation in decentralised systems where neoliberal and neoconservative policies foster autonomy, competition, internationalisation and 'excellence'. [ABSTRACT FROM AUTHOR]
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- 2023
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14. Multimodal spatial availability: A singly-constrained measure of accessibility considering multiple modes.
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Soukhov, Anastasia, Tarriño-Ortiz, Javier, Soria-Lara, Julio A., and Páez, Antonio
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LOCAL transit access , *CHOICE of transportation , *MEASUREMENT - Abstract
Place-based accessibility measures communicate the potential interaction with opportunities at a zone that populations can access. Recent research has explored the implications of how opportunities are counted by different accessibility methods. In conventional measures, opportunities are multiply counted if more than one zone offers access to the same opportunity. This multi-count of opportunities leads to values of accessibility that are difficult to interpret. A possible solution to enhance the meaning-making of accessibility results is by constraining the calculations to match a known quantity. This ensures all zonal values sum up to a predetermined quantity (i.e., the total number of opportunities). In this way, each value can be meaningfully related to this total. A recent effort that implements this solution is spatial availability, a singly-constrained accessibility measure. In this paper, we extend spatial availability for use in the case of multiple modes or more generally, heterogeneous population segments with distinct travel behaviors. After deriving a multimodal version of spatial availability, we proceed to illustrate its features using a synthetic example. We then apply it to an empirical example of low emission zones in Madrid, Spain. We conclude with suggestions for future research and its use in evaluating policy interventions. [ABSTRACT FROM AUTHOR]
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- 2024
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15. NARRACIÓN MULTIESCENA Y SINCRONÍA GRÁFICA: CÓMICS EN LOS MURALES DE LA ESTACIÓN DE METRO DE CUATRO CAMINOS.
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Villarreal Colunga, Carlos, Muñoz Hernández, Jara, Gil Barrio, Eva María, Gómez Escribano, Raúl, and Rodríguez Callejo, Javier
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COMIC books, strips, etc. , *ARCHITECTURAL drawing , *LOST architecture , *GRAPHIC arts , *MURAL art , *SENSES , *NARRATIVES - Abstract
The permanent museography project for the Cuatro Caminos metro station in Madrid features two historical synthesis murals whose main methodological instrument is architectural drawing. In addition, they offer narrative proposals that use resources of the avant-garde comic, together with simultaneous representations of space and time in which the chronological sense of the narrative is even manipulated. This paper analyses the two murals from the conceptual framework of the comic book in terms of the combination of the simultaneous vision of the graphic medium and the partial visions of its contents. Moreover, it ponders on the use of these resources when transmitting complex realities in heritage dissemination works. [ABSTRACT FROM AUTHOR]
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- 2024
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16. Perceived Stressful Life Events and Suicide Risk in Adolescence: The Mediating Role of Perceived Family Functioning.
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Caro-Cañizares, Irene, Sánchez-Colorado, Nuria, Baca-García, Enrique, and Carballo, Juan J.
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SUICIDE risk factors , *LIFE change events , *MENTAL health services , *SYSTEMIC lupus erythematosus , *PSYCHOTHERAPY , *FAMILY support , *ABUSE of older people , *TEENAGE suicide - Abstract
Aim: Suicidal behavior is a serious public health problem and a major cause of death among adolescents. Three categories of major risk factors have been identified: psychological factors, stressful life events, and personality traits. Severe and objective stressful life events (SLEs), such as childhood mistreatment or abuse, have been clearly associated with higher rates of suicide risk. However, the relationship between suicide risk and adolescents' perceptions of the SLE impact is not as clear. This paper studies the relationship between SLE impact perception and suicide risk and the possible mediating role of perceived family functioning in this relationship. The need for longer-term or more intense psychological or psychiatric treatment in relation to SLE impact perception is also addressed. Method: One hundred forty-seven adolescents aged 11–17 were consecutively recruited from the Child and Adolescent Mental Health Outpatient Services Department of a general hospital in Madrid, Spain. Self-informed questionnaires were used to assess suicide risk, SLEs, and family functioning. In addition, the clinical records of the participants were consulted to collect information about their treatment histories, including the number of appointments and the duration of follow-up. Results: SLE impact perception correlates significantly with suicide risk, the number of clinical appointments, the duration of treatment, and the perceived level of family functioning. The mediation model of the family functioning perception variable in the relationship between SLE impact perception and suicide risk is significant. The linear regression model of SLE impact perception and family functioning perception on suicide risk is also significant, accounting for 25.7% of the variance. Conclusions: Beyond the clear and proven effect of serious and objective SLEs, the perceived impact of SLEs reported by adolescents is related to an increased risk of suicide and more intense psychological and/or psychiatric follow-up. This relationship is mediated by the perceived level of family functioning. Adolescents' perceptions of their life experiences and perceived family support may be key determinants of suicide risk prevention. [ABSTRACT FROM AUTHOR]
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- 2024
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17. A Dynamic CGE Model for Optimization in Business Analytics: Simulating the Impact of Investment Shocks.
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Medina-López, Ana, Jiménez-Partearroyo, Montserrat, and Cámara, Ángeles
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COMPUTABLE general equilibrium models , *BUSINESS analytics , *DYNAMIC models , *INTERTEMPORAL choice , *ECONOMIC forecasting - Abstract
This study formulates a mathematical dynamic Computable General Equilibrium (CGE) model within a rational expectations framework, adhering to neo-classical principles. It emphasizes the significant role of agents' expectations in determining the broader economic trajectory over time. The model combines microeconomic and macroeconomic perspectives by merging the concept of intertemporal choice with savings behavior. Its mathematical foundations are derived and calibrated using data from a social accounting matrix to enhance its simulation capabilities. The paper presents a practical simulation investigating the economic implications of a strategic investment impact within an specific European region, Madrid as the case of study. Such demand shock affects sectors such as electronics, food, pharmaceuticals, and education. The study models the long-term effects of heightened investment and persistent demand-side shocks. The research demonstrates the CGE model's ability to forecast economic shifts toward a new equilibrium after an investment shock, proving its utility for assessing the impacts of extensive environmental policies within a European context. The work's originality lies in its detailed mathematical formulation, contributing to theoretical discourse and practical application in business analytics. [ABSTRACT FROM AUTHOR]
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- 2024
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18. Weaving the algorithm: participatory subjectivities amongst food delivery riders.
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Allen-Perkins, Diego and Cañedo-Rodríguez, Montserrat
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LOCAL delivery services , *ELECTRONIC commerce , *SUBJECTIVITY , *MEDIATION , *WEAVING , *ALGORITHMS - Abstract
The platform economy is an ecosystem of algorithmically-organised social–technical relationships. In the specific area of home food delivery via digital platforms, algorithmic mediation motivates agents to act in specific ways based on algorithmic logic, creating a distinct form of subjectivity. Based on an ethnography carried out with delivery riders in the City of Madrid (Spain) between 2021 and 2023, in this paper we explore the concept of participatory subjectivity, proposing a distinction between three categories: (a) systems in which the delivery worker seeks algorithmic recognition, (b) systems in which users act in such a way as to be ignored by the algorithm and (c) systems in which it is the design of the algorithms themselves that fosters participation by users. We believe that the concept of participatory subjectivity contributes to the debate on algorithmic mediation in the platform economy, while also affording new perspectives on its effects on workers. [ABSTRACT FROM AUTHOR]
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- 2023
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19. Do 2 weeks of instruction time matter? Using a natural experiment to estimate the effect of a calendar change on students' performance.
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Sanz, Ismael and Tena, J. D.
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EDUCATIONAL change , *EDUCATIONAL outcomes , *COGNITIVE testing , *ACADEMIC achievement , *SCHOOL schedules , *CALENDAR , *CURRICULUM change - Abstract
This paper investigates the effect on academic performance of an exogenous educational reform that reduced the school calendar of non-fee-paying schools in the Madrid region (Spain) by approximately two weeks, leaving the basic curriculum unchanged. To identify the consequences of such a measure, we exploit the fact that it did not affect private schools (control group) and the existence of an external cognitive test that measures academic performance before and after its application in the region. We find that the reform worsened students' educational outcomes by around 0.13 of a standard deviation. This effect was especially strong in the subjects of Spanish and Mathematics. We further explored quantile effects across the distribution of exam scores, finding that the disruption had a more negative effect on students in the upper quartile than those in the lower quartile. Overall, the analysis shows a reduction in the gap across non-fee-paying schools and an increase in the gap between non-fee- and fee-paying schools. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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20. Sharing Art as a Daily Resistance Strategy in Madrid during the 2020 Lockdown: 50 Days of Collective Experience at the Plaza de San Bernardo.
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Falcón, Laia
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ART & society , *COVID-19 pandemic , *EMOTIONAL trauma , *MEDIA art , *WELL-being , *SOCIAL networks , *EXCEPTIONAL children - Abstract
The manner in which individuals worldwide shared art during the most challenging months of the COVID-19 pandemic stands as one of the most significant instances of creative social resistance in recent history. As a collective tool of resistance against emotional trauma, and as a means to foster a sense of community and well-being, the study of this phenomenon offers a compelling avenue for research into creativity and its social functions. This paper presents a descriptive case study of a successful 50-day collective experience within a neighborhood community in Madrid, Spain, during a period when the city, as a notably exceptional case study for research, bore one of the heaviest burdens of COVID-19 in the world. Data were gathered through in-depth personal interviews and direct observations. Applying a connected approach drawing on the fields of the Sociology of Art and Media Studies, three key findings emerge: (1) participants emphasized shared live artistic performances as the primary catalyst for fostering a sense of community, collective resilience, and overall well-being; (2) their sense of togetherness was further bolstered by digital and media support, as recordings of live performances were shared with loved ones living elsewhere, as well as with journalists and on social networks. This network of communication played a pivotal role in connecting individuals; (3) the combined efforts of both initiatives contributed to the development of a more positive individual and shared narrative surrounding the crisis. [ABSTRACT FROM AUTHOR]
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- 2023
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21. Improving CS1 Programming Learning with Visual Execution Environments.
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Hijón-Neira, Raquel, Pizarro, Celeste, French, John, Paredes-Barragán, Pedro, and Duignan, Michael
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VISUAL learning , *SECONDARY research , *GROUP work in education , *COMPUTER science - Abstract
Students in their first year of computer science (CS1) at universities typically struggle to grasp fundamental programming concepts. This paper discusses research carried out using a Java-based visual execution environment (VEE) to introduce fundamental programming concepts to CS1 students. The VEE guides beginner programmers through the fundamentals of programming, utilizing visual metaphors to explain and direct interactive tasks implemented in Java. The study's goal was to determine if the use of the VEE in the instruction of a group of 63 CS1 students from four different groups enrolled in two academic institutions (based in Madrid, Spain and Galway, Ireland) results in an improvement in their grasp of fundamental programming concepts. The programming concepts covered included those typically found in an introductory programming course, e.g., input and output, conditionals, loops, functions, arrays, recursion, and files. A secondary goal of this research was to examine if the use of the VEE enhances students' understanding of particular concepts more than others, i.e., whether there exists a topic-dependent benefit to the use of the VEE. The results of the study found that use of the VEE in the instruction of these students resulted in a significant improvement in their grasp of fundamental programming concepts compared with a control group who received instruction without the use of the VEE. The study also found a pronounced improvement in the students' grasp of particular concepts (e.g., operators, conditionals, and loops), suggesting the presence of a topic-dependent benefit to the use of the VEE. [ABSTRACT FROM AUTHOR]
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- 2023
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22. Commuting to College: An Analysis of a Suburban Campus on the Outskirts of Madrid.
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Mouronte-López, Mary Luz and López, Alberto
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MEDIAN (Mathematics) , *CHOICE of transportation , *PUBLIC universities & colleges , *DISTRIBUTION (Probability theory) , *DISTANCE education students , *COMMUTING - Abstract
This paper aims to analyse human mobility in a university campus on the outskirts of the Madrid region. Several surveys which were distributed to students for completion during the 2017-2018, 2018-2019, and 2021-2022 courses were examined. Both an exploration of existing transport modes using clustering techniques and a statistical analysis on trip origins, travel times, and distances were performed. Not all municipalities with the highest number of trips were the closest to the university. The clustering analysis identified a lower variability in the use ratio of the transport modes in the 2017-2018 course. The private car, which exhibited a low sharing rate, was the most utilised transport mode. This was followed by public and university transportation. Similarities between the probability distributions of journeys using public and university transports were found. High and moderate correlations between the number of the existing stops and the amount of trips by subway and urban bus were detected. The lowest median values of travel distances corresponded to students, administrative staff, teachers, and researchers who exhibited very similar values. Considering the three analysed academic years as a whole, the most likely travel times were 30–60 minutes. It was detected that a higher gross annual income did not imply higher private car use. Residents in areas with the highest ozone concentrations also exhibited a high use of motorised vehicles. A low familiarisation with car-sharing and car-pooling platforms was also found. Globally, a high level of comfort during the trip was mostly perceived. [ABSTRACT FROM AUTHOR]
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- 2023
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23. Using Traffic Sensors in Smart Cities to Enhance a Spatio-Temporal Deep Learning Model for COVID-19 Forecasting.
- Author
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Muñoz-Organero, Mario
- Subjects
- *
VEHICLE detectors , *INTELLIGENT sensors , *SMART cities , *DEEP learning , *COVID-19 pandemic , *COMPUTER network traffic , *MACHINE learning - Abstract
Respiratory viruses, such as COVID-19, are spread over time and space based on human-to-human interactions. Human mobility plays a key role in the propagation of the virus. Different types of sensors in smart cities are able to continuously monitor traffic-related human mobility, showing the impact of COVID-19 on traffic volumes and patterns. In a similar way, traffic volumes measured by smart traffic sensors provide a proxy variable to capture human mobility, which is expected to have an impact on new COVID-19 infections. Adding traffic data from smart city sensors to machine learning models designed to estimate upcoming COVID-19 incidence values should provide optimized results compared to models based on COVID-19 data alone. This paper proposes a novel model to extract spatio-temporal patterns in the spread of the COVID-19 virus for short-term predictions by organizing COVID-19 incidence and traffic data as interrelated temporal sequences of spatial images. The model is trained and validated with real data from the city of Madrid in Spain for 84 weeks, combining information from 4372 traffic measuring points and 143 COVID-19 PCR test centers. The results are compared with a baseline model designed for the extraction of spatio-temporal patterns from COVID-19-only sequences of images, showing that using traffic information enhances the results when forecasting a new wave of infections (MSE values are reduced by a 70% factor). The information that traffic data has on the spread of the COVID-19 virus is also analyzed, showing that traffic data alone is not sufficient for accurate COVID-19 forecasting. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
24. Immigration, Poverty, and Infant and Child Mortality in the City of Madrid, 1916–1926.
- Author
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Oris, Michel, Mazzoni, Stanislao, and Ramiro-Fariñas, Diego
- Subjects
- *
INFANT mortality , *CHILD mortality , *VITAL records (Births, deaths, etc.) , *REAL estate sales , *CHILDREN of immigrants , *POVERTY , *URBAN planning , *PUBLIC investments , *EMIGRATION & immigration - Abstract
In this paper, we study differential infant and child mortality according to the origin of the mothers, natives of Madrid or immigrants, between 1916 and 1926. From 1880 to 1939, Madrid experienced spectacular demographic growth, with a massive influx of immigrants, mainly from the Castilian Plateau. Using the city's records of births and deaths, which we linked for the study period, we demonstrate an important spatial heterogeneity in infant and child mortality across the city. Although the development of the town was planned in the 1860s, the infrastructure and the real estate market were overwhelmed by the continuous arrival of new inhabitants. Moreover, major investments in public health increased the gap between the wealthy districts and peripheral areas. These improvements deepened inequality. During years marked by the waves of the influenza pandemic, we isolate the impact of poverty, which threatened the survival of newborns through poor nutrition, deficient hygienic infrastructures and deplorable housing conditions. Such features explain the impressive association between summer and the risk of dying from enteritis, diarrhea and other diseases of the same type among weaned children. However, the mortality differentials between the offspring of native and migrant mothers were surprisingly small, which we explained in terms of behavioral adaptation to the large city and its mass society. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
25. Andamiajes y derivas: la mediación algorítmica en la práctica de los riders.
- Author
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CAÑEDO RODRÍGUEZ, MONTSERRAT and ALLEN-PERKINS, DIEGO
- Subjects
- *
LOCAL delivery services , *ELECTRONIC commerce , *GIG economy , *ALGORITHMS , *DIGITAL technology , *SOCIAL sciences , *QUALITY control , *SPACETIME , *PATIENT autonomy , *GOVERNMENTALITY - Abstract
There is a growing interest in the field of social sciences in the study of topics related to the so-called gig economy or platform economy and, among them, in the figure of the rider-a term that refers to the home delivery workers employed through digital platforms. In these platforms, the work of the riders is organized from algorithmic management logics, a mediation in which the panoptic quality of their forms of control and governmentality has tended to be emphasized. In contrast to these frameworks, this paper presents a theoretical-methodological approach that emphasizes the co-constitution-in an open agency- of the rider and the application, to ethnographically approach the everyday labor practices of riders. In the interest of exploring how algorithmic mediation functions in the diversity of riders' experiences, we analyze the coordination tasks responsible for producing the shared space-time geography and the flexible control strategies that mediate the application. The text describes how the algorithm generates a kind of scaffolding that defines directive spatiotemporalities in the riders' operations, within which the deliverers extend the landscape of calculability to those elements that the algorithm cannot consider and to those others that the rider must incorporate in order to make his activity compatible with the algorithmic logic. This article presents the initial results of an ethnography carried out in Madrid since September 2021 with riders from several of the main digital home delivery platforms: Glovo, Uber Eats, and Getir . Along with the fieldwork with riders, we interviewed four technologists in urban logistics. The results show that salaried riders have a less intense experience of the directive chronography of the algorithm, showing how autonomy is not necessarily equivalent to the riders' capability to choose. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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- View/download PDF
26. Identificación cultural y emocional con Madrid a través de la serie Valeria (Netflix, 2020-2023).
- Author
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M. J., Higueras-Ruiz
- Subjects
- *
CULTURAL identity , *EMOTIONS , *EMOTIONS in motion pictures , *TELEVISION series , *ECONOMIC activity , *EXPORT marketing , *LOCAL foods , *BIBLIOGRAPHIC databases - Abstract
VoD -video on demand- platforms have promoted a global television market in the current audiovisual industry. Thanks to its transnational character, the operator of Netflix distributes around the world TV series produced inside a local context, and national cultural identities are transmitted in a global context. The present paper aims to determine the Spanish idiosyncrasy through images about the city of Madrid in Netflix original fiction: Valeria (2020-2023). A qualitative methodology has been used to conduct a bibliographic review and examine this TV fiction. To do so, we elaborate an analysis table with technical data, cultural and emotional identification, and audiovisual language in scenes which show places of Madrid. Findings show the inclusion of outdoors and architectures, locals of economic activity, and identity symbols across images which articulate personal and professional stories with a suitable audiovisual filmmaking. Conclusions highlight the cultural proximity for a local audience, and touristic options of Madrid through this TV series and its promotional material. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
27. Agonistic politics in post‐crisis landscapes: Comparative insights from Athens and Madrid.
- Author
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Arampatzi, Athina and Janoschka, Michael
- Subjects
- *
HUMAN geography , *SOCIAL cohesion , *NONPROFIT sector , *PRACTICAL politics - Abstract
Critical debates in human geography have interrogated the changing political landscapes of the post‐2008 crisis period and the post‐democratic imprint of neoliberal reconfigurations in Europe. Moreover, geographers have offered insights into politicisation processes that disrupted the post‐crisis consensus, attesting to the possibility inherent within forms of democratic politics. Contributing to these debates, this paper critically engages with Chantal Mouffes "agonistics" approach, aiming to deliberate on the implicit geographies of her thought and bring forward the complex, messy, and multi‐scalar geographies of democratic politics. In so doing, the paper offers an empirically informed comparative perspective of two exemplary cases of governance changes. Social solidarity economy (SSE) and housing inform our re‐conceptualisation of "agonistics," through a plural reading of the co‐existing and at times conflicting forms of political agency and democratic politics of this period. By conceptualising the multiple and heterogeneous spatialities, modalities, and temporalities of agonistics in Athens and Madrid, we acknowledge their mutual constitution and distinct analytical validity for geographical thinking. Comparing across uneven geographical contexts elicits crucial tensions emanating from the heterogeneity of the two contexts and further allows us to distillate the diverse, yet complementary, logics and analytical dimensions of agonistics. Eventually, our contribution aims to problematise the distinction between "politics" and "the political" – as either neatly spatialised around pre‐given state spaces or understood exclusively as disruptive moments and ruptural events – and draw the attention to actually existing forms of agonistic politics. The paper critically engages with Chantal Mouffe's "agonistics" approach, aiming to deliberate on the implicit geographies of her thought and bring forward the complex, messy, and multi‐scalar geographies of democratic politics. In so doing, it offers an empirically informed comparative perspective of two exemplary cases of governance changes in Athens and Madrid, which inform our re‐conceptualisation of "agonistics", through a plural reading of the spatialities, modalities, and temporalities of democratic politics. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
28. La Retina de los Vertebrados: Santiago Ramón y Cajal. Edited/Translated from La Rétine des Vertébrés (1892) by Nicolás Cuenca and Pedro de la Villa. Madrid: Consejo Superior de Investigaciones Cientificas (CSIC), 2021. 254 pp., $82.96, 38 € (paperback). ISBN 978-8400108458
- Author
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Stell, William K.
- Subjects
- *
RETINA , *DOMESTIC architecture , *PERIPHERAL nervous system , *NERVOUS system - Abstract
A further gift is a translation of Cajal's paper, originally in French, which was presented at the XIV Concilium Ophtalmologicum, Madrid (Ramón y Cajal [6]). La Retina de los Vertebrados: Santiago Ramón y Cajal. The original work has been made available as translations into German (Ramón y Cajal [5]) and English (Ramón y Cajal [8], [9]), with some supplements by Cajal himself ([5]) and by the translators. The original French version, with supplements, was reprinted late in Cajal's life for the opening of the XIV Concilium Ophtalmologicum in Madrid (Ramón y Cajal [7]). [Extracted from the article]
- Published
- 2023
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29. Uncovering spatiotemporal micromobility patterns through the lens of space–time cubes and GIS tools.
- Author
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Arias-Molinares, Daniela, García-Palomares, Juan Carlos, Romanillos, Gustavo, and Gutiérrez, Javier
- Subjects
- *
URBAN transportation , *SPACETIME , *CITIES & towns , *URBAN planning , *CUBES , *SPACE , *CHARGE carrier mobility - Abstract
In the past ten years, cities have experienced a burst of micromobility services as they offer a flexible transport option that allows users to cover short trips or the first/last mile of longer trips. Despite their potential impacts on mobility and the fact that they offer a cleaner, more environmentally friendly alternative to private cars, few efforts have been devoted to studying patterns of use. In this paper we introduce new ways of visualizing and understanding spatiotemporal patterns of micromobility in Madrid based on the conceptual framework of Time-Geography. Hägerstrand's perspectives are taken and adapted to analyze data regarding use of micromobility, considering each trip departure location (origins) obtained from GPS records. The datasets are collected by three of the most important micromobility operators in the city. Trip origins (points) are processed and visualized using space–time cubes and then spatially analyzed in a GIS environment. The results of this analysis help to identify the landscape of micromobility in the city, detecting hotspot areas and location clusters that share similar behavior throughout space and time in terms of micromobility departures. The methods presented can have application in other cities and could offer insights for transport planners and micromobility operators to better inform urban planning and transportation policy. Additionally, the information could help operators to optimize vehicle redistribution and maintenance/recharging tasks, reducing congestion and increasing efficiency. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
30. Planning for social distancing: How the legacy of historical epidemics shaped COVID-19's spread in Madrid.
- Author
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Manzano Gómez, Noel A
- Subjects
- *
COVID-19 pandemic , *SOCIAL distancing , *URBAN planning , *SOCIAL planning , *HISTORICAL source material , *SUBURBS - Abstract
This paper combines historical and contemporary sources to examine 'epidemic urban planning' from the first decades of the 20th century through to the present day. It considers how infamous early 20th-century epidemics triggered the development of several urban regulations that profoundly shaped the city's future. To reduce the risk of contagion in bourgeois space, the city began displacing and spatially segregating the urban poor, leading to deprived neighbourhoods in the city's suburbs. The social and urban structure of these deprived, 'vulnerable' neighbourhoods remains to this day. Madrid was also greatly impacted by the COVID-19 crisis, and the initial distribution of COVID geographies seemed to reflect these historical legacies. Epidemic-influenced segregation kept wealthy neighbourhoods relatively safe during the first waves of the COVID-19 pandemic, concentrating the disease in poorer areas. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
31. Bartomeu Darder Pericàs (1894-1940) i el XIV Congrés Geològic Internacional.
- Author
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DEL VALLE, Laura and FORNÓS, Joan J.
- Subjects
- *
CONFERENCES & conventions , *HISTORY of geology , *DATA analysis , *GEOLOGISTS , *VETERINARIANS , *KALMAN filtering - Abstract
The celebration in 1926 of the XIV International Geological Congress in Madrid (Spain), presented the scientific work and the scientists of the State done so far. Among them Bartomeu Darder-Pericás, veterinarian, geologist and teacher until his days at the Tarragona Institute. The main objective of this paper is present the role of Bartomeu Darder on the XIV International Geological Congress. Bartomeu Darder prepared and edited the corresponding guide to the post-congress field trip title C-5 Isla de Mallorca in conjunction with Paul Fallot. Also participated in the congress organization as a representative of the Tarragona Institute acting as a secretary in two sessions -II Session "Geología de la Meditarrànea" and presenting two communications. One of them with the participation of Paul Fallot titled "La edad de los movimientos orogenicos de la isla de Mallorca", and the second titled "Geología de la Mediterránea". The second objective is analyzing the impact of the congress on the Spanish geology, especially Mallorca, based on the classification, filtering and analysis of the data extracted from correspondence, books, reprints, newspaper clippings, letters, field notebooks, etc. from the legacy DARDER, facilitated by his son Josep Darder to the Balearic Government, also to be supplemented by others related documents. [ABSTRACT FROM AUTHOR]
- Published
- 2021
32. The (in)visibility of women in the press specializing in literature: an analysis of the presence of women writers in Spanish cultural supplements.
- Author
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García-Borrego, Manuel, Gómez-Calderón, Bernardo, and García-Cardona, Juan
- Subjects
- *
WOMEN authors , *GENDER inequality , *GENDER stereotypes , *SPANIARDS , *GENDER studies , *WOMEN'S writings , *FEMINISM , *LITERATURE , *STATISTICAL correlation , *PRESS , *YOUNG women - Abstract
This paper aims to dissect the presence of female writers in the main four cultural supplements of Spanish reference press: Babelia (El país), Cultura/s (La vanguardia), El cultural (El mundo) and ABC cultural (ABC). For this, we analyzed the "books of the year" recommended between 2010 and 2021 (n = 1,286), as well as the juries in charge of elaborating these ranks. The results show the subsidiary role reserved for women in this sphere of cultural information: they barely author 25.3% of the selected books, although some degree is progress is observed in the historical series, after going from 4.8% in 2011 to 37.8% in 2020. The increase in the presence of women in the juries has contributed to this phenomenon --the correlation between ratio of women in both lists being statiscally significant (rs = 0.647, p < 0.001)--, together with the commitment of supplement such as Babelia and Cultura/s to literature written by women. On the contrary, there still seem to be pockets of exclusion in El cultural and ABC cultural, which reduce the visibility of work of female writers in Spain. According to our findings, women authors stand out for their youth (they are between 8 and 20 years younger than men, depending on the indicator), cosmopolitism (there are more foreign female writers, especially American, than Spanish) and origin (mainly, Madrid and Barcelona). This article evinces the collective imaginary, settled for centuries, by which literature was considered a men's affair, and reflects on the role of cultural journalism and its prescriptive function when it comes to breaking down gender stereotype --a task that, in view of the data provided in this paper, is still far from been completed. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
33. Correlation between mobility in mass transport and mortality due to COVID-19: A comparison of Mexico City, New York, and Madrid from a data science perspective.
- Author
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Vega-Villalobos, Andrea, Almanza-Ortega, Nelva Nely, Torres-Poveda, Kirvis, Pérez-Ortega, Joaquín, and Barahona, Igor
- Subjects
- *
DATA science , *COVID-19 , *PUBLIC transit , *COVID-19 pandemic , *SCIENTIFIC method , *SUBWAYS , *MASTS & rigging - Abstract
In most big cities, public transports are enclosed and crowded spaces. Therefore, they are considered as one of the most important triggers of COVID-19 spread. Most of the existing research related to the mobility of people and COVID-19 spread is focused on investigating highly frequented paths by analyzing data collected from mobile devices, which mainly refer to geo-positioning records. In contrast, this paper tackles the problem by studying mass mobility. The relations between daily mobility on public transport (subway or metro) in three big cities and mortality due to COVID-19 are investigated. Data collected for these purposes come from official sources, such as the web pages of the cities' local governments. To provide a systematic framework, we applied the IBM Foundational Methodology for Data Science to the epidemiological domain of this paper. Our analysis consists of moving averages with a moving window equal to seven days so as to avoid bias due to weekly tendencies. Among the main findings of this work are: a) New York City and Madrid show similar distribution on studied variables, which resemble a Gauss bell, in contrast to Mexico City, and b) Non-pharmaceutical interventions don't bring immediate results, and reductions to the number of deaths due to COVID are observed after a certain number of days. This paper yields partial evidence for assessing the effectiveness of public policies in mitigating the COVID-19 pandemic. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
34. FERNANDO CAVESTANY, ARQUITECTO Y DIBUJANTE.
- Author
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Sánchez Carrasco, Laura and Cobeta Gutiérrez, Íñigo
- Subjects
- *
COWBOYS , *MODERN architecture , *ARCHITECTS , *GRAPHIC arts , *ARCHITECTURAL drawing , *RNA , *ILLUSTRATORS , *PROFESSIONAL employees , *ELECTRONIC journals - Abstract
Fernando Cavestany (1922-1974) was an architect whose short but intense professional career always went hand in hand with a passion for drawing. Even as a student, and later as a practicing architect, he worked as an illustrator for the magazine Revista Nacional de Arquitectura, as did Joaquín Vaquero Turcios, José Luis Picardo, Ramón Vázquez Molezún, and more. This article aims to be a first probe into the graphic work of Fernando Cavestany. To this end, RNA has been used as guiding thread, given that it was the medium he most assiduously published his drawings in. In addition to showing the Madrid architect's drawing skills, this paper seeks to uphold the work of draftspersons, drawing attention to how their drawings, always one of a kind, added expressive quality to architecture journals. In Fernando Cavestany's case, the range of techniques and themes was broad, but there is a prevalence of the spur-of-the-moment travel sketch, which he relished doing all his life. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
35. Effect of Recycling on the Environmental Impact of a High-Efficiency Photovoltaic Module Combining Space-Grade Solar Cells and Optical Micro-Tracking.
- Author
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Ziemińska-Stolarska, Aleksandra, Pietrzak, Monika, and Zbiciński, Ireneusz
- Subjects
- *
SOLAR cells , *PHOTOVOLTAIC power systems , *PRODUCT life cycle assessment , *MAXIMUM power point trackers , *PHOTOVOLTAIC power generation , *TIRE recycling , *SOLAR radiation , *ECOLOGICAL impact - Abstract
This paper presents a life cycle assessment (LCA) analysis of a new, high-concentration photovoltaic (HCPV) technology developed as part of the HIPERION project of hybrid photovoltaics for efficiency record using an integrated optical technology. In the LCA calculations, the production stage of a full module was adopted as a functional unit. SimaPro version 9.00.49, the recent Ecoinvent database (3.8), and the IPCC 2021 GWP 100a environmental model were applied to perform the calculations. The environmental impact of the HCPV panel was determined for constructional data and for recycling of the main elements of the module. The results of the calculations show that recycling of PMMA, rubber, and electronic elements reduced the total carbon footprint by 17%, from 240 to 201 kg CO2-eq. The biggest environmental load was generated by the PV cells: 99.9 kg CO2eq., which corresponds to 49.8% (41.7% without recycling) of the total environmental load due to the large number of solar cells used in the construction. The emission of CO2 over a 25-year lifespan was determined from 17.1 to 23.4 g CO2-eq/kWh (20.4 to 27.9 without recycling), depending on the location. The energy payback time (EPBT) for the analyzed module is 0.87 and 1.19 years, depending on the location and the related insolation factors (Madrid: 470 kWh/m2, Lyon: 344 kWh/m2). The results of the calculations proved that the application of recycling and recovery methods for solar cells can improve the sustainability of the photovoltaic industry. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
36. Discussion on the entrepreneurial university in Spain: The case of the Madrid Region.
- Author
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Quintero, Natalia Dévora and Serrano, Gonzalo León
- Subjects
- *
THEMES in literature , *STATE universities & colleges , *UNIVERSITIES & colleges - Abstract
A central theme in the literature has been the identification of the factors that drive the creation of entrepreneurial universities. The application of these factors and university institutional commitment become essential to overcome the institutional barriers that may exist. Moreover, some authors have warned that in some university systems, transformation becomes a challenge due to high dependence on the State. In this paper, we have examined whether the dependence of Spanish universities on the State can be interpreted as an inhibitor of the transformation process, as well as the institutional commitment of several universities to become entrepreneurial entities, in a national framework that—considering the literature—would not seem the most optimal to achieve it. We note that the State is not an inhibitor, but not all universities show the same internal commitment. When universities are committed to change, the process is accelerated by the sum of two impulses. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
37. Spatial models for online retail churn: Evidence from an online grocery delivery service in Madrid.
- Author
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Llave Montiel, Miguel Angel and López, Fernando
- Subjects
- *
LOCAL delivery services , *BUSINESS losses , *MARKETING executives ,URBAN ecology (Sociology) - Abstract
This paper presents evidence of the significant role that geography plays in customer churn behaviour in online retail. In an urban environment, mimetic behaviours are found to affect nearby individuals. This novel approach is based on the idea that customer churn is not randomly distributed across the map. This paper analyses more than 2,000 spatially georeferenced customers and demonstrates that customers show different patterns when deciding to cease activity, and that other factors besides spatial autocorrelation influence churn probability. Finally, the results prove that including spatial spillover in models improves predictability. This improvement results in substantial economic benefits since marketing managers can consequently reduce their company's loss of customers more effectively. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
38. Bike sharing and cable car demand forecasting using machine learning and deep learning multivariate time series approaches.
- Author
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Peláez-Rodríguez, César, Pérez-Aracil, Jorge, Fister, Dušan, Torres-López, Ricardo, and Salcedo-Sanz, Sancho
- Subjects
- *
DEMAND forecasting , *MACHINE learning , *TIME series analysis , *CAR sharing , *CYCLING , *DEEP learning , *FEATURE selection - Abstract
In this paper the performance of different Machine Learning and Deep Learning approaches is evaluated in problems related to green mobility in big cities. Specifically, the forecasting of bike sharing demand in Madrid and Barcelona (Spain) is approached, for different prediction time-horizons, and also a problem of cable car demand forecasting in Madrid city. An important number of predictive variables are considered, which are grouped into four different sets (categorical/calendrical, persistence-based, meteorological and, as a novelty of the paper, information about analogue past instances), whose relevance is studied for all cases. A feature selection mechanism is also incorporated in order to improve the prediction accuracy of the proposed algorithms. A total of 12 different multivariate regression techniques are implemented, covering from Machine Learning methods to time-series Deep Learning approaches. Excellent results in all the prediction problems approached are reported. Finally, the consequences of obtaining accurate prediction in these three problem of green mobility in big cities are discussed. In addition, it is studied how the results could be exported to other similar cases in more general urban mobility studies. Novelties of the work include: (1) Addressing the forecast problem of passenger flow on a cable car using ML and DL multivariate techniques; (2) using the demand of analogous past instances as an additional feature to solve the demand prediction problems; and (3) the extraction of global conclusions about feature relevance when addressing a demand forecasting problem in green mobility. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
39. LOS TORMENTOS DEL PURGATORIO SEGÚN ALGUNOS TRATADISTAS DOCTRINALES DEL BARROCO ESPAÑOL.
- Author
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Sanz Larroca, Juan Cosme
- Subjects
- *
NATIONAL libraries , *ETHICISTS , *SOUL , *THEOLOGIANS , *PUNISHMENT , *PIETY , *LITERARY characters - Abstract
This paper seeks to systematize the opinions of seventeenth-century Spanish theologians and moralists on the torments suffered by souls in purgatory In order to do so, the most representative treatises published at the time, which are kept at the National Library of Madrid, have been analysed. Departing from the concepts of probity and piety, which God dictates for the provisional inhabitants of the «Third Place», the article first makes a sketch of how purgatorial penalties were treated from the earliest historical references to the council of Trent and Describes their evolution. The paper then focuses on the study of how the issue was addressed by Spanish authors. More particularly, it analysis the different types of punishments prescribed for souls in purgatory. Several categories have been found, of which some are internal to purgatory, while others are external. Among the latter, a distinction is made between penalties of damage and penalties of meaning. The paper ponders the question of why penalties of damage were considered more griefful than penalties of meaning. In so doing, it also recognizes the weight that was specifically attributed to fire, further nuancing the assessment of penalties. To finish, the article presents a catalogue of the different types of penalties described in the visions of different people and literary characters. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
40. From the Steam Engine to STEAM Education: An Experience with Pre-Service Mathematics Teachers.
- Author
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Herrero, Angel C., Recio, Tomás, Tolmos, Piedad, and Vélez, M. Pilar
- Subjects
- *
MATHEMATICS teachers , *STUDENT teachers , *STEAM engines , *STEAM education , *MATHEMATICS education (Secondary) - Abstract
In this paper, we describe an educational experience in the context of the Master's degree that is compulsory in Spain to become a secondary education mathematics teacher. Master's students from two universities in Madrid (Spain) attended lectures that addressed—emphasizing the concourse of a dynamic geometry software package—some historical, didactic and mathematical issues related to linkage mechanisms, such as those arising in the 18th and 19th centuries during the development of the steam engine. Afterwards, participants were asked to provide three different kinds of feedback: (i) working on an assigned group task, (ii) individually answering a questionnaire, and (iii) proposing some classroom activity, imagining it would be addressed to their prospective pupils. All three issues focused on the specific topic of the attended lectures. In the framework of Mason's reflective discourse analysis, the information supplied by the participants has been analyzed. The objective was to explore what they have learned from the experience and what their perception is of the potential interest in linkages as a methodological instrument for their future professional activity as teachers. This analysis is then the basis upon which to reflect on the opportunities (and problems) that this particular bar-joint linkages methodological approach could bring towards providing future mathematics teachers with attractive tools that would contribute to enhancing a STEAM-oriented education. Finally, the students' answers allow us to conclude that the experience was beneficial for these pre-service teachers, both in improving their knowledge on linkages history, mathematics, industrial, technological and artistic applications, and in enhancing the use in the classroom of this very suitable STEAM context. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
41. Everyday information behavior during the "new normal" of the Covid-19 pandemic: approaching the notions of experiential and local knowledge.
- Author
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Montesi, Michela
- Subjects
- *
INFORMATION-seeking behavior , *COVID-19 pandemic , *LOCAL knowledge , *CRISIS management , *GROUNDED theory , *EXPERIENTIAL learning - Abstract
Purpose: The purpose of this research is to understand everyday information behavior (IB) during the Covid-19 pandemic at the "new normal" stage, focusing on the notions of experiential knowledge (EK), i.e. knowledge acquired by first-hand experience or in personal interactions, and local knowledge (LK) as perception of local environment. Design/methodology/approach: Seventeen interviews were carried out in February–May 2021, in a district of the city of Madrid (Spain). Interview transcripts were analyzed according to grounded theory, to identify major and complementary themes of EK and LK. Findings: Participants' stories show that EK cooperated with information originating from government, scientific authorities and mainstream media, in patterns of convergence and divergence. While convergence produces "thick knowledge" (knowledge perceived as solid, real and multidimensional), divergence leads to uncertainty and collaboration, but it also supports a critical stance on authorities' information. In addition, participants' perceptions of LK emphasize its human component. LK and EK are exchanged both explicitly and tacitly. Originality/value: The paper presents the first approach to understanding EK and LK and their function during the health crisis, characterizing them as alternative information systems and as topics deserving major attention in research on IB and crisis management. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
42. El sistema médico de emergencias de Madrid a prueba: análisis del rendimiento espaciotemporal del SAMUR-PC en los primeros meses de la nueva normalidad postCOVID-19.
- Author
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Pérez-Fernández, Onel and Moya-Gómez, Borja
- Subjects
- *
COVID-19 pandemic , *EMERGENCY medical services , *MEDICAL care , *PANDEMICS , *RHYTHM , *AMBULANCES - Abstract
Those requiring emergency health care cannot wait. Ambulances must arrive at the scene as quickly as possible. Ambulances are usually assigned to bases distributed throughout the city to minimize arrival time to the event. However, the spatial distribution of events changes during the day according to people's rhythm and city use. This paper evaluates, through location-allocation modelling, the Spatio-temporal performance of SAMUR-PC, the Emergency Medical Service of Madrid (Spain), in two different scenarios, before the COVID-19 pandemic and during the first months of the new normality period. The results show that the system responded relatively well to the change in event patterns due to the pandemic. However, some interventions would have been necessary to guarantee the same service as before the epidemiological crisis. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
43. Tweets on migrants during the election campaigns in the Community of Madrid.
- Author
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GARCÍA DE OTEYZA, MIGUEL OSORIO and CATELA MARCOS, ISIDRO
- Subjects
- *
MINORS , *POLITICAL campaigns , *CRITICAL discourse analysis , *DISCOURSE analysis , *UNDOCUMENTED immigrants , *MICROBLOGS , *POLITICAL agenda , *HATE speech - Abstract
In this paper we present research into narratives on immigrants and immigration, to identify cases of hate speech on the part of political parties against immigrants on Twitter during the 2019 and 2021 electoral campaigns in the Community of Madrid. Using Critical Discourse Analysis, the results confirm the exponential increase by all parties in discussion on the issue of immigration and that the political agenda and public discourse is increasingly framed by hate speech towards unaccompanied minors and undocumented migrants. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
44. Functions and transmission of humour in interpreter-mediated healthcare consultations: An exploratory study.
- Author
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Álvaro Aranda, Cristina
- Subjects
- *
MEDICAL interpreters , *MEDICAL personnel , *MEDICAL care , *CROSS-cultural differences - Abstract
This paper presents an exploratory study of humour in multilingual, multicultural healthcare interactions with an interpreter. Data are part of a dataset of healthcare encounters observed in a hospital in Madrid (Spain) for a period of five months, which included the participation of six interpreters. Four aspects were analysed: (1) who initiates humour, (2) who receives humour, (3) what the functions of humour are, and (4) how interpreters behave vis-à-vis humour occurrences. Preliminary findings indicate that humour allows patients, healthcare providers and interpreters to pursue relational and transactional goals similar to those present in monolingual healthcare interactions, such as handling negative emotions. Interpreters are active co-constructors of humour, and all participants in the triad work together towards the establishment and recognition of a humorous frame, where hierarchical relationships seem to exist. Together with linguistic and cultural differences between participants, interpreters must appropriately render background and contextual knowledge to ensure humour maintains its intended function, which emphasises the healthcare interpreter's active role in interaction. These findings call for greater attention to research on humour, as well as specific training for interpreters to highlight its relational power and, thus, ensure successful communication in multicultural, multilingual (healthcare) settings. Resumen: Este artículo presenta un estudio exploratorio del humor en interacciones sanitarias multilingües y multiculturales con participación de un intérprete. Los datos forman parte de un conjunto de encuentros sanitarios con participación de seis intérpretes que se observaron en un hospital de Madrid durante un período de cinco meses. Se analizaron cuatro aspectos: (1) quién inicia el humor y (2) a quién lo dirige, (3) cuáles son las funciones de dicho humor y (4) cómo se comportan los intérpretes en este tipo de situaciones. Los resultados preliminares indican que el humor permite a pacientes, personal sanitario e intérpretes perseguir objetivos de índole relacional y transaccional similares a los presentes en interacciones sanitarias monolingües, como la gestión de emociones negativas. Los intérpretes son coconstructores activos del humor y todos los participantes de la tríada colaboran en el establecimiento y reconocimiento de un marco humorístico, en el que parecen existir relaciones jerárquicas. Junto con las diferencias lingüísticas y culturales entre los participantes, los intérpretes deben transmitir adecuadamente información sobre el trasfondo y el contexto para garantizar que el humor mantenga su función prevista, lo que subraya el papel activo del intérprete sanitario en la interacción. Estos resultados exigen una mayor atención a la investigación sobre el humor, así como una formación específica para los intérpretes que ponga de relieve el poder relacional de dicho humor y, por tanto, se garantice el éxito de la comunicación en entornos (sanitarios) multiculturales y multilingües. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
45. Explanatory Factors of Daily Mobility Patterns in Suburban Areas: Applications and Taxonomy of Two Metropolitan Corridors in Madrid Region.
- Author
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Alonso, Andrea, Monzón, Andrés, Aguiar, Iago, and Ramírez-Saiz, Alba
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URBAN growth , *URBAN density , *CLUSTER analysis (Statistics) , *CORRIDORS (Ecology) , *TAXONOMY , *STATISTICAL correlation , *SUBURBS - Abstract
Understanding the characteristics that shape mobility could help to achieve more sustainable transport systems. A considerable body of scientific studies tries to determine these characteristics at the urban level. However, there is a lack of studies analyzing those factors for the heterogeneous zones existing in the suburbs of big cities. The study presented in this paper intends to fill this gap, in the context of two metropolitan corridors in the Madrid Region. Correlation analyses are used to examine how mobility patterns are affected by socioeconomic and urban form variables. Then, a cluster analysis is carried out to classify the types of zones we may find in the suburbs. Results show that the main characteristics leading towards higher car use are low urban density, few local activities, a high percentage of children, and a low percentage of seniors. As for the variable distance to the city center, it does not explain car use. Moreover, some remote areas have many walking trips. This is well understood in the cluster analysis; there are zones far away from the city center but that are dense and well provided for, which work as self-sufficient urban centers. Results reinforce the theories underlying polycentrism as a solution to the urban sprawl challenge. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
46. Gambling Outlets Location in Urban Areas: A Case Study of Madrid.
- Author
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Pérez, Levi, Rodríguez, Ana, and Shmarev, Andrey
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GAMBLING , *NEIGHBORHOOD characteristics , *NEIGHBORHOOD change - Abstract
Cities are certainly a key factor in the location of gambling facilities. This paper aims to map the location of gambling outlets in urban areas and to examine potential links between neighborhoods socioeconomic and demographic characteristics and gambling supply, taking into account spatial dependencies of neighboring areas. This correlation is of interest because neighborhood characteristics may attract sellers, and because the presence of gambling sellers may cause changes in neighborhood demographics. Using detailed official data from the city of Madrid for the year 2017, three spatial econometric approaches are considered: spatial autoregressive (SAR) model, spatial error model (SEM) and spatial lag of X (explicative variables) model (SLX). Empirical analysis finds a strong correlation between neighborhoods characteristics and co-location of gambling outlets, highlighting a specific geographic patterning of distribution within more disadvantaged urban areas. This may have interesting implications for gambling stakeholders and for local governments when it comes to the introduction and/or increase of gambling availability. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
47. The Spatial Politics of Far-right Populism: VOX, Anti-fascism and Neighbourhood Solidarity in Madrid City.
- Author
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Santamarina, Ana
- Subjects
- *
RIGHT-wing populism , *RIGHT & left (Political science) , *RIGHT-wing extremism , *FASCISM , *SOLIDARITY , *NEIGHBORHOODS - Abstract
This article explores the spatial politics of the Spanish far-right party VOX, deepening discussions around the spaces of xenophobic populism and anti-fascist politics. The paper foregrounds the need of moving beyond the nation-centred, institutional and descriptive approaches that characterise the literature on far-right politics, to focus on the quotidian grounds of far-right mobilisations. Through an analysis of VOX's politics of hate at the neighbourhood level, I explore the co-constitutive relationship between 'institutional politics' and the 'politics of the street'. Focusing in Hortaleza – a Madrilenian district targeted by VOX's mobilisation – I analyse the ways the party attempts to exploit situated inequalities linked to the urbanisation of border regimes and how neighbourhood movements are challenging VOX through constructing alternative anti-racist politics of belonging. The paper argues that the centrality of the neighbourhood as the lived space of political socialisation makes it a key scale of articulation of anti-fascist politics and grassroots solidarities. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
48. Space-Distributed Traffic-Enhanced LSTM-Based Machine Learning Model for COVID-19 Incidence Forecasting.
- Author
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Muñoz-Organero, Mario
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- *
MACHINE learning , *COVID-19 , *MEDICAL personnel , *DEEP learning , *VIRAL transmission , *FORECASTING , *TIME series analysis - Abstract
The COVID-19 virus continues to generate waves of infections around the world. With major areas in developing countries still lagging behind in vaccination campaigns, the risk of new variants that can cause re-infections worldwide makes the monitoring and forecasting of the evolution of the virus a high priority. Having accurate models able to forecast the incidence of the spread of the virus provides help to policymakers and health professionals in managing the scarce resources in an optimal way. In this paper, a new machine learning model is proposed to forecast the spread of the virus one-week ahead in a geographic area which combines mobility and COVID-19 incidence data. The area is divided into zones or districts according to the location of the COVID-19 measuring points. A traffic-driven mobility estimate among adjacent districts is proposed to capture the spatial spread of the virus. Traffic-driven mobility in adjacent districts will be used together with COVID-19 incidence data to feed a new deep learning LSTM-based model which will extract patterns from mobility-modulated COVID-19 incidence spatiotemporal data in order to optimize one-week ahead estimations. The model is trained and validated with open data available for the city of Madrid (Spain) for 3 different validation scenarios. A baseline model based on previous literature able to extract temporal patterns in COVID-19 incidence time series is also trained with the same dataset. The results show that the proposed model, based on the combination of traffic and COVID-19 incidence data, is able to outperform the baseline model in all the validation scenarios. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
49. The historical telegraphic towers from Madrid to Valencia: from knowledge to preservation and enhancement.
- Author
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Martino, Antonello, Savini, Pierandrea, Navarro, Yolanda Hernández, de Dato, Pasquale, and Fatiguso, Fabio
- Subjects
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TOWERS , *NINETEENTH century , *SKYSCRAPERS , *PEDESTRIANS , *OBSOLESCENCE - Abstract
The optical telegraphic system was introduced in Spain in 1844. In fact, more than a hundred towers were built to connect Madrid to Irún, Valencia and the Andalusia. Decommissioned at the end of the nineteenth century, despite their historical value, the towers are today abandoned with a high level of material and functional obsolescence, waiting for a new utilization. In light of the above-mentioned aspects, the research aims at the identification, cataloguing and qualification of the telegraphic towers located on the pathway from Madrid to Valencia in order to propose a large-scale territorial project for their preservation and enhancement. In particular, the paper is going to describe, first, a historical and morphological evolution of the telegraphic towers. Second, a methodology for qualification of the architectural, material, constructive and functional characteristics of the towers is reported, with a specific reference to the given case study of the telegraphic paths between Madrid and Valencia. Finally, a redevelopment scenario is proposed for the restoration of the towers as well as for their integration in a cycling and pedestrian naturalistic pathway. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
50. Fuzzy expert system for road type identification and risk assessment of conventional two‐lane roads.
- Author
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Barreno, Felipe, Romana, Manuel G., and Santos, Matilde
- Subjects
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FUZZY expert systems , *EXPERT systems , *RISK assessment , *TRAFFIC lanes , *SYSTEM identification , *FUZZY logic - Abstract
This paper first presents a fuzzy expert system to identify and classify conventional two‐lane roads based on geometric characteristics. Both fuzzy and neuro‐fuzzy techniques have been used. Fuzzy logic has proved suitable to address this problem, since in this case, there is a variability of input information, and classical rules are not suitable to be used due to the uncertainty introduced by some combinations of the variables. Each road's geometric features were measured by sensors in an equipped vehicle, and are subsequently used to classify the roads according to their real condition. The conventional two‐lane roads used for this research are located in the Madrid Region, in Spain. This intelligent system may be used to update the road database regarding the assigned type to each conventional road, according to their present features and state. Also, a risk identification system has been developed to assess whether a vehicle is driving on a two‐lane road with an inappropriate speed, combining variables such as the former identification model, vehicle type, road longitudinal gradient, the angle covered by each horizontal curve, and the existence or not of an additional traffic lane. A fuzzy risk index is proposed for this approach. This fuzzy model may be useful to detect road sections where safety must be enhanced by revising the speed limit, since less safe situations may arise from travelling at unappropriated speeds. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
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