Guillermo Velázquez

Guillermo Velázquez


Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2018 in Cuadernos de Geografía: Revista Colombiana de Geografía
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Journal Article
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NGNéstor Javier Gómez
Néstor Javier Gómez
GVGuillermo Velázquez
Guillermo Velázquez
Los espacios verdes públicos (EVP) brindan servicios sociales y ambientales a la comunidad urbana. Se diagnostica y analiza la presencia, superficie y distribución de los EVP del municipio de Santa Fe (Argentina), en relación con cuatro áreas de calidad de vida establecidas en un estudio previo. Esta aproximación se apoya en una serie de indicadores que toman datos de fuentes secundarias y primarias. Los resultados muestran que en Santa Fe la oferta, extensión, presencia y densidad de los EVP difieren entre las distintas áreas de calidad de vida, donde la mayor disponibilidad de estos espacios se encuentra en los lugares con mayor calidad de vida. La normativa municipal habría favorecido la proliferación de EVP de tamaño pequeño.

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Journal Article
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AZAlejandro Zunino
Alejandro Zunino
GVGuillermo Velázquez
Guillermo Velázquez
JCJuan Pablo Celemín
Juan Pablo Celemín
CMCristian Mateos
Cristian Mateos
MHMatías Hirsch
Matías Hirsch
JRJuan Manuel Manuel Rodriguez
Juan Manuel Manuel Rodriguez
Recent Web technologies such as HTML5, JavaScript, and WebGL have enabled powerful and highly dynamic Web mapping applications executing on standard Web browsers. Despite the complexity for developing such applications has been greatly reduced by Web mapping libraries, developers face many choices to achieve optimal performance and network usage. This scenario is even more complex when considering different representations of geographical data (raster, raw data or vector) and variety of devices (tablets, smartphones, and personal computers). This paper compares the performance and network usage of three popular JavaScript Web mapping libraries for implementing a Web map using different representations for geodata, and executing on different devices. In the experiments, Mapbox GL JS achieved the best overall performance on mid and high end devices for displaying raster or vector maps, while OpenLayers was the best for raster maps on all devices. Vector-based maps are a safe bet for new Web maps, since performance is on par with raster maps on mid-end smartphones, with significant less network bandwidth requirements.


8 November 2023 in International Journal of Injury Control and Safety Promotion
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Journal Article
Closed access
CLCarlos Marcelo Leveau
Carlos Marcelo Leveau
GVGuillermo Velázquez
Guillermo Velázquez
The aim of this study was to assess space-time clustering of suicide in Argentina between 2017 and 2020. A spatio-temporal scan statistic using a space-time permutation model was employed to retrospectively detect clusters of total suicides by sex and by age group. From 2017 to 2020, six statistically significant spatio-temporal clusters were identified in Argentina with either more or less suicides than expected. Two clusters extended from May 2019 to July and September 2020, while the remaining four clusters were detected only during 2020. The start of the COVID-19 pandemic seems to have changed the spatio-temporal patterns of suicide in Argentina. Despite the national decrease in the number of suicides during 2020 compared to previous years, the spatio-temporal analysis revealed both areas with decreases and increases in suicide. This heterogeneous scenario highlights the need for the study of local effects behind the emergence of these spatio-temporal suicide clusters.

24 October 2019 in Huellas
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CMClaudia Andrea Mikkelsen
Claudia Andrea Mikkelsen
UAUniversidad Nacional del Centro de la Provincia de Buenos Aires. Argentina
Universidad Nacional del Centro de la Provincia de Buenos Aires. Argentina
ATArgentina Consejo Nacional de Investigaciones Científicas Y Técnicas
Argentina Consejo Nacional de Investigaciones Científicas Y Técnicas
GVGuillermo Velázquez
Guillermo Velázquez
CAConsejo Nacional de Investigaciones Científicas Y Técnicas. Argentina
Consejo Nacional de Investigaciones Científicas Y Técnicas. Argentina
Localidades del sudeste de la provincia de Buenos Aires, aproximación al estudio de su dinámica poblacional

1 January 2023 in Cadernos de Saude Publica
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Journal Article
Open access
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CLCarlos Marcelo Leveau
Carlos Marcelo Leveau
MHMustafa Hussein
Mustafa Hussein
JTJosé A. Tapia-Granados
José A. Tapia-Granados
GVGuillermo Velázquez
Guillermo Velázquez
Although mortality from ischemic heart disease has declined over the past decades in Argentina, ischemic heart disease remains one of the most frequent causes of death. This study aimed to describe the role of individual and contextual factors on premature ischemic heart disease mortality and to analyze how educational differentials in premature ischemic heart disease mortality changed during economic fluctuations in two provinces of Argentina from 1990 to 2018. To test the relationship between individual (age, sex, and educational level) and contextual (urbanization, poverty, and macroeconomic variations) factors, a multilevel Poisson model was estimated. When controlling for the level of poverty at the departmental level, we observed inequalities in premature ischemic heart disease mortality according to the educational level of individuals, affecting population of low educational level. Moreover, economic expansion was related to an increase in ischemic heart disease mortality, however, expansion years were not associated with increasing educational inequalities in ischemic heart disease mortality. At the departmental level, we found no contextual association beween area-related socioeconomic level and the risk of ischemic heart disease mortality. Despite the continuing decline in ischemic heart disease mortality in Argentina, this study highlighted that social inequalities in mortality risk increased over time. Therefore, prevention policies should be more focused on populations of lower socioeconomic status in Argentina.