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This paper explores collaborative spatial data as an alternative data source for hydrodynamic model calibration, specifically concerning flood risk mapping. This study is motivated by the multiple uncertainties in the modeling process, especially in the relevant calibration and validation stages. Furthermore, information shared collaboratively can play a fundamental role when data are scarce, which is a usual modeling limitation. This paper tackled aspects like developing a collaborative platform (a mobile app) to collect flood marks; identifying strategies to motivate and engage potential collaborators; developing tools to analyze data consistency; and assessing the capability and restrictions in collaborative information use. Results validate the hypothesis that collaborative spatial data can be an alternative in hydrodynamic model calibration. Developing mechanisms to assess data consistency was crucial for achieving a good performance in the results, as simulations using collaborative data presented errors (RMSE) below 10 cm. Finally, regarding public motivation and engagement, elementary school students performed the best in data collection, highlighting the importance of direct actions, such as face-to-face workshops. Thus, the study hopes to reduce uncertainty in hydrological risk mapping, focusing specifically on observed data scarcity and its influence on model calibration and validation. [ABSTRACT FROM AUTHOR]

Sifilis is one of the most common sexually transmitted infections (STI) in the world, with millions infected every year, despite efficient prevention and treatment options. In 2016, in Brazil, syphilis became a healthcare problem. The National Program for the Improvement of Access and Quality of Primary Care (PMAQ-AB) aims to amplify access and improve basic attention by providing access to public data. This study seeks to develop a mobile application that helps Syphilis Attention Networks to map data about the infection and therefore counter its proliferation. In this work, it was developed a mobile platform, with Flutter framework, that will extract data from the PMAQAB's platform regarding syphilis specialized health units. After that, Google tools are used to provide directions. According to that, it is possible to assume that Brazil has failed in the fight against Syphilis and needs new projects to improve its efficiency against the bacteria dissemination. As a result, this application can assist the mapping of syphilis attention networks and also become a module for a case management system, being able to map a variety of diseases other than Syphilis. [ABSTRACT FROM AUTHOR]

Video streaming on the Internet is constantly changing and growing. New devices and new video delivery mechanisms generate huge gaps in the understanding of how video application works. From exploratory research of one among the largest streaming services in Brazil, this work presents a comparison between mobile and non-mobile users, in large-scale lives. This work focuses on metrics such as engagement, interruption, churn, and payload. This work also presents a report-overview of mobile-users, considering the operating system, geolocation, network access, interruption, and engagement. These results might offer potential information for streaming improvement, in addition to serving as a historical mark. [ABSTRACT FROM AUTHOR]