Realización de un grafo en recintos rectangulares sobre una planta definida

En este trabajo se analiza el problema de la realización de un grafo en un conjunto de recintos rectangulares que cubran una planta dada, de lados paralelos a dos direcciones perpendiculares. Los grafos pueden representar el esquema básico de una vivienda o de un edificio y en él se muestran distintos requerimientos del proyecto. Para ello, se analiza el problema de la partición de un rectángulo en rectángulos, esto es, dado un grafo, saber si admite una realización de esta clase y, en caso afirmativo, generar automáticamente dichas realizaciones. En ambos aspectos, se propone un procedimiento completo y general. Se trata de un problema de aplicación práctica en áreas tales como proyecto arquitectónico o compactación de circuitos electrónicos, del que no se ha encontrado una solución general en la bibliografía consultada.Peer reviewe

Narrative and violence: the Brazilian Autumn coverage on Twitter

This paper analyses the media coverage of the Brazilian protests that happened in June 2013. We monitored 2,852 tweets from ten news organizations and newspapers that were covering the events on Twitter and, based on content analysis, we compared and identiied messages focusing on violence aspects of the manifestations. We also compared this discourse to oicial data from 268 protests that occurred during the same timeframe, regarding deaths, injuries and arrests. Our results indicate that news coverage on Twitter diverged from official sources, amplifying the violence discourse by focusing tweets’ contents on this topic

Application of intelligent instruments for the monitoring of thrust reverse noise at airports

Peer Reviewe

Definition of a labelling code for the noise emitted by machines

It has been increasingly realised that traditional parameters, such as A-weighted sound levels, sound power and noise spectra in octaves or third octaves are not enough to describe a sound and that machine labels should show more subjective information about the emitted noise. A new labelling system based on empirical data is proposed. The methodology of the study used as the basis for the proposal is explained, as well as the objective and subjective characteristics to be included in the new label. The uses and applications of the label are discussed briefly

Self-adaptive grids for noise mapping refinement

Noise maps are usually represented as contour or isolines maps describing the sound levels in a region. Using this kind of representation the user can easily find the noise level assigned to every location in the map. But the acoustic calculations behind the map are not performed for every single location on it; they are only performed in a grid of receivers. The results in this calculation grid are interpolated to draw the isolines or contours. Therefore, the resolution of the calculation grid and the way it was created (rectangular, triangulated, random…) have an effect on the resulting map. In this paper we describe a smart iterative procedure to optimize the quality of the map at a really low additional computational cost, using self-adaptive grids for the acoustic calculations. These self-adaptive grids add new receivers to the sampling grid in those locations where they are expected to be more useful, so that the performance at the output of the interpolator is enhanced. Self-adaptive sampling grids can be used for minimizing the overall error of the map (improving its quality), or for reducing calculation times, and can be also applied selectively to target areas or contour lines. This can be done by the user customizing the maximum number of iterations, the number of new receivers for each iteration, the target isolines, the target quality

Real-time aircraft noise likeness detector

One of the most difficult tasks involved in the process of noise monitoring near airports is related to the automatic detection and classification of aircraft noise events. These tasks can be solved by applying pattern recognition techniques to the audio signal captured by a microphone. But now the problem is caused by the background noise, which is present in real environments. This paper proposes a real-time method for continuously tracking the similarity of the input sound and the aircraft’s sounds. Using these facilities, the monitoring unit will be able to mark aircraft events, or to make measurements only when aircraft sound is louder than background noise. A one-class approach has been applied to this detection-by-classification method. Using the default setup, 93% of the aircraft’s events which held an SNR of 6–8 dB were detected, for 30 different locations with diverse soundscapes

Preliminary test to characterize the soundscape of the Plaza Mayor in Madrid

This paper is a first step of a research about the analysis of the richness of the existing sounds in the Plaza Mayor, due to the old and traditional shops and bars under its porticoes together with the huge daily affluence of people. In this paper we study the sound preferences of the salesmen and bar tenders at those traditional shops. These sound preferences include particular sounds, time of occurrence and date of specific annoying and pleasant sounds perceived at the square and the shops surrounding it. To carry out this study, several noise level measurements and socio-acoustic surveys were held. We will also try to correlate sound preferences and annoyance with noise levels of specific events existing at this particular square

The Insurrectionist Playbook: Jair Bolsonaro and the National Congress of Brazil

In this paper we unpack the 2022 Brazilian presidential campaign marked by multiple claims of electoral fraud and calls for a coup d’état by supporters of former President Jair Bolsonaro. We identify the narrative frames underpinning this insurrectionist playbook by analyzing Bolsonaro’s statements during the presidential campaign. We subsequently test the penetration of this playbook on members of the Brazilian National Congress during the campaign trail and the transition of power to the opposition candidate, when pro-Bolsonaro protesters attempted to overthrow the Federal Government. Our analyses lend support to the thesis that the coup d’état was not successful due to the dwindling support beyond the hard-core Bolsonaro base. Our results describe an insurrectionist playbook largely centered on the blueprint of false claims of electoral fraud, a playbook that can be monitored through the public statements of elected officials. We conclude with a discussion of our findings and recommendations for future research

Realización de un grafo en recintos rectangulares sobre una planta definida

In this paper, the problem of mapping a graph into a set of rectangles covering a given plan is analyzed. The plan must have its sides parallel to two perpendicular directions. The graph may represent the basic scheme of a housing or a building, in which the different design requirements are collected. To this aim, the problem of partitioning a rectangle into rectangles is analyzed. It consists in determining whether a given graph can be realized this way, and if so, automatically generate some of its realizations. A general method is proposed to solve both aspects of the problem. It is a problem with practical application in areas such as architectural design or compaction of electronic circuits, to which no general solution has been found in the specialized bibliography.En este trabajo se analiza el problema de la realización de un grafo en un conjunto de recintos rectangulares que cubran una planta dada, de lados paralelos a dos direcciones perpendiculares. Los grafos pueden representar el esquema básico de una vivienda o de un edificio y en él se muestran distintos requerimientos del proyecto. Para ello, se analiza el problema de la partición de un rectángulo en rectángulos, esto es, dado un grafo, saber si admite una realización de esta clase y, en caso afirmativo, generar automáticamente dichas realizaciones. En ambos aspectos, se propone un procedimiento completo y general. Se trata de un problema de aplicación práctica en áreas tales como proyecto arquitectónico o compactación de circuitos electrónicos, del que no se ha encontrado una solución general en la bibliografía consultada

A endogamia da Comunicação: redes de colaboração na CSAI

O presente artigo analisa e discute as redes de colaboração na área de Ciências Sociais Aplicadas I. Os registros de coautoria e colaborações foram identificados e extraídos da base de dados Lattes do CNPq e análise de redes sociais foi empregada para oferecer um panorama da área, e mais especificamente, dos grupos de colaboração da subárea Comunicação. Os resultados da análise apontam para comunidades formadas pela combinação de diferentes critérios, mas sobretudo em função das instituições de ensino superior, e apenas marginalmente em função dos temas de pesquisa ou regiões geográficas. Além disso, os resultados também indicam a presença consideravelmente mais expressiva de redes colaboração na subárea Ciências da Informação em comparação com a subárea Comunicação