Toxic Social Media: Affective Polarization After Feminist Protests

The objective of this article is to conceptualize affective polarization beyond partisan politics to instead analyze the ways in which women’s affective political participation is subject to toxic discipline. While a lot of focus has been placed on affective politics as mechanisms for governance, little has been done regarding affective polarization after feminist protest. In this article, we bridge two bodies of literature—affective politics and political polarization—by proposing the notion of affective polarization. We focused on the case of a series of feminist mobilizations that took place to fight back against the impunity of police violence in Mexico. We conducted a mixed-method approach that combines, on one hand, quantitative analysis of data strand tweets encompassing #EllasNoMeRepresentan (TheyDoNotRepresentMe) (N = 17,698) and #EllasSiMeRepresentan (TheyDoRepresentMe) (N = 6700) and, on the other hand, a qualitative analysis of 500 tweets of each hashtag. The results of the study revealed the existence of polarization that aims at disciplining the affective political participation of women. Almost half of our data contain negative sentiments. The toxic tweets include corrective threats, such as incitation to sexual violence, murder, hate against feminism, and patronizing discourses about how women should protest. We thus conclude that while it is true that social media has amplified feminist mobilization, it has also led to an increase of digital violence. With these findings, the article contributes to a better understanding of both feminist affective politics and its disciplining governing mechanisms in a patriarchal social media

Street Mapping of Traffic Signs through an Automated Intelligent Device

Most commercial mapping services tend to use either data generated by them or data provided by external entities, usually at a price. Efforts that try to keep this information freely available are likely to depend on the help of volunteers, for instance the OpenStreetMap project. To support them, this document presents a system that reduces the work of mapping streets manually. It is a proof of concept of a street mapping device that captures video, keeps useful images, and identifies traffic signs. Due to the limited storage capacity, the device analyzes the images and discards the ones without relevant differences, for this it uses the Structural Similarity index to decide the images that will be stored. Then, it uses an AlexNext-based neural network to identify traffic signs and provide extra useful information about the streets, which later is added to the metadata of the images. This proof of concept illustrates a modular system flow to automate the street mapping task, which can later be extended and improved for more robust and accurate results. This system can be applied to generate more mapping information in cities, such as the Guadalajara Metropolitan area

Aportación metodológica para determinar el índice de calidad del medio ambiente urbano y edificado del Área Metropolitana de Barcelona

El presente trabajo está orientado hacia la determinación de una metodología que evalúa características socio-residenciales, diagnostica el estado de bienestar del medio ambiente urbano del Área Metropolitana de Barcelona (AMB), responde al estado en que se encuentran las viviendas pre-existentes al 2001. La investigación incorpora una aportación al enfoque de valoración inmobiliaria sustentada en técnicas de valores sociales como parte de un contexto integral. La orientación al desarrollo sostenible constituye dar un enfoque de valoración inmobiliaria, es decir, retomando el valor de uso como una combinación de valores urbanos y de satisfacción residencial en la base del análisis. La hipótesis de la investigación nace a partir de desarrollar una metodología sustentada en indicadores parciales (simples) idóneos para la obtención del Índice de Calidad Edificada del AMB obtenido por el método del indicador sintético de distancia DP2. El objetivo de la investigación es demostrar la validación del método del indicador sintético de distancia.This work is oriented towards the determination of a methodology to assess socio-residential characteristics, diagnoses the welfare state of the urban environment in the metropolitan area of Barcelona (AMB), responds to the state that are pre-existing dwellings to 2001 . The research incorporates a contribution to real estate valuation approach supported by techniques of social values as part of a comprehensive context. The sustainable development orientation is an approach to property valuation, returning the value in use as a combination of urban values and residential satisfaction in the analysis. The hypothesis of the research stems from developing a methodology supported by partial indicators (simple) suitable for obtaining Built Quality Index of AMB obtained by the method of the synthetic indicator DP2 away. The objective of this research is to demonstrate the validation of the method of the synthetic indicator away.Peer Reviewe

Producción de orégano (Origanum sp) con fertilización nitrogenada en suelos arenosos de Corrientes

La producción nacional de orégano distribuida mayoritariamente en las provincias de Mendoza y Córdoba no satisface la demanda de consumo interno. En la provincia de Corrientes, el orégano es altamente requerido por las industrias de chacinados locales. Para desarrollar el potencial de rendimiento del orégano, es necesario adecuar el manejo agronómico y especialmente el de las fertilizaciones, a las condiciones agroecológicas marginales, diferentes de la zona tradicional de cultivo en Argentina. El objetivo fue evaluar el rendimiento de orégano en suelos arenosos del noroeste de Corrientes, sometidos a diferentes dosis de fertilización con urea (108, 216 y 325 kg ha-1) y un tratamiento testigo sin fertilizante. El efecto de la fertilización se determinó en dos momentos de muestreo y los resultados fueron analizados mediante un Anova, prueba de Tukey (p < 0,05) y análisis de regresión para establecer la relación existente entre rendimiento y niveles de nitrógeno aplicados. Las variables estudiadas respondieron de manera directa y linear al incremento de la dosis del fertilizante, incrementando el rendimiento en peso fresco total (PFT) por hectárea en 270% y el peso seco de hojas (PSHo) por hectárea en alrededor de 200% con la dosis de 325 kg ha-1 de úrea, respecto al testigo. El manejo de la fertilización permite alcanzar el rendimiento de 2000 kg de hojas secas. ha-1 .año-1, citado como promedio a nivel nacional y posicionar a Corrientes como una zona con potencial para el cultivo de orégano dentro de un esquema de diversificación entre los pequeños productores locales

Evaluation of a mobile application for heart failure telemonitoring

Q2Adequate adherence to treatment is indispensable in preventing adverse consequences in heart failure patients. Such adherence can be managed through heart failure clinics and various methods of follow-up. In recent years, the use of telemonitoring has shown promising benefits in supporting clinicians' follow-up, as well as contributing to patients' self-care. This article presents the development and evaluation of a telemonitoring application for heart failure, through a Web-based interface for clinicians and a mobile application for patients. The application was evaluated through a 6-month pilot observational descriptive study in 20 outpatients with reduced ejection fraction and two nurses, in the context of a heart failure clinic. A technological acceptance questionnaire was applied to all patients and nurses at the end of the study period. In use, the application generated 64 real-time alerts for early decision-making to prevent complications, and 91% of patients did not present hospital readmissions. Such results, along with high user acceptance, show potential utility of the application as an effective complementary strategy for follow-up of patients with heart failure.Revista Internacional - Indexad

Supporting nested parallelism

Many parallel applications do not completely fit into the data parallel model. Although these applications contain data parallelism, task parallelism is needed to represent the natural computation structure or enhance performance. To combine the easiness of programming of the data parallel model with the efficiency of the task parallel model allows to parallel forms to be nested, giving Nested parallelism. In this work, we examine the solutions provided to N ested parallelism in two standard parallel programming platforms, HPF and MPI. Both their expression capacity and their efficiency are compared on a Cray- 3TE, which is distributed memory machine. Finally, an additional speech about the use of the methodology proposed for MPI is done on two different architecturesI Workshop de Procesamiento Distribuido y Paralelo (WPDP)Red de Universidades con Carreras en Informática (RedUNCI

Longitud de la apófisis mastoides como indicador del dimorfismo sexual

El objetivo del presente trabajo es observar si existen diferencias significativas entre la longitud total de la apófisis mastoides entre ambos sexos. La muestra analizada pertenece a la Colección Osteológica Prof. Dr. Rómulo Lambre (FCM-UNLP), la cual está integrada por restos óseos de individuos de edad y sexo conocido.Facultad de Ciencias Médica

Longitud de la apófisis mastoides como indicador del dimorfismo sexual

El objetivo del presente trabajo es observar si existen diferencias significativas entre la longitud total de la apófisis mastoides entre ambos sexos. La muestra analizada pertenece a la Colección Osteológica Prof. Dr. Rómulo Lambre (FCM-UNLP), la cual está integrada por restos óseos de individuos de edad y sexo conocido.Facultad de Ciencias Médica

Pro-oxidant status and matrix metalloproteinases in apical lesions and gingival crevicular fluid as potential biomarkers for asymptomatic apical periodontitis and endodontic treatment response

<p>Abstract</p> <p>Background</p> <p>Oxidative stress and matrix metalloproteinases -9 and -2 are involved in periodontal breakdown, whereas gingival crevicular fluid has been reported to reflect apical status. The aim of this study was to characterize oxidant balance and activity levels of MMP -2 and -9 in apical lesions and healthy periodontal ligament; and second, to determine whether potential changes in oxidant balance were reflected in gingival crevicular fluid from asymptomatic apical periodontitis (AAP)-affected teeth at baseline and after endodontic treatment.</p> <p>Methods</p> <p>Patients with clinical diagnosis of AAP and healthy volunteers having indication of tooth extraction were recruited. Apical lesions and healthy periodontal ligaments, respectively, were homogenized or processed to obtain histological tissue sections. Matrix metalloproteinase -9 and -2 levels and/or activity were analyzed by Immunowestern blot, zymography and consecutive densitometric analysis, and their tissue localization was confirmed by immunohistochemistry. A second group of patients with AAP and indication of endodontic treatment was recruited. Gingival crevicular fluid was extracted from AAP-affected teeth at baseline, after endodontic treatment and healthy contralateral teeth. Total oxidant and antioxidant status were determined in homogenized tissue and GCF samples. Statistical analysis was performed using STATA v10 software with unpaired t test, Mann-Whitney test and Spearman's correlation.</p> <p>Results</p> <p>Activity of MMP-2 and MMP-9 along with oxidant status were higher in apical lesions (p < 0.05). Total oxidant status correlated positively with matrix metalloproteinase-2 and lesion size (p < 0.05). Gingival crevicular fluid showed significantly lower levels of total antioxidant status in diseased teeth at baseline compared to controls and endodontically-treated groups.</p> <p>Conclusions</p> <p>Apical lesions display an oxidant imbalance along with increased activity of matrix metalloproteinase-2 and -9 and might contribute to AAP progression. Oxidant imbalance can also be reflected in GCF from AAP-affected teeth and was restored to normal levels after conservative endodontic treatment. These mediators might be useful as potential biomarkers for chair-side complementary diagnostic of apical status in GCF.</p