scholarly journals Official crime data versus collaborative crime mapping at a Brazilian city

2014 ◽  
Vol XL-2 ◽  
pp. 137-144
Author(s):  
P. L. Brito ◽  
E. G. V. Jesus ◽  
R. M. S. Sant' Ana ◽  
C. Martins ◽  
J. P. M. Delgado ◽  
...  
Keyword(s):  
Undergraduate Students ◽  
Public Safety ◽  
Density Estimator ◽  
Spatial Correlations ◽  
Map Algebra ◽  
Significant Information ◽  
Safety Database ◽  
Web Map ◽  
Safety Priority ◽  
The City

In July of 2013 a group of undergraduate students from the Federal University of Bahia, Brazil, published a collaborative web map called “Where I Was Robbed”. Their initial efforts in publicizing their web map were restricted to announce it at a local radio as a tool of social interest. In two months the map had almost 10.000 reports, 155 reports per day and people from more the 350 cities had already reported a crime. The present study consists in an investigation about this collaborative web map spatial correlation to official robbery data registered at the Secretary of Public Safety database, for the city of Salvador, Bahia. Kernel density estimator combined with map algebra was used to the investigation. Spatial correlations with official robbery data for the city of Salvador were not found initially, but after standardizing collaborative data and mining official registers, both data pointed at very similar areas as the main hot spots for pedestrian robbery. Both areas are located at two of the most economical active areas of the city, although web map crimes reports were more concentrated in an area with higher income population. This results and discussions indicates that this collaborative application is been used mainly by mid class and upper class parcel of the city population, but can still provide significant information on public safety priority areas. Therefore, extended divulgation, on local papers, radio and TV, of the collaborative crime map application and partnership with official agencies are strongly recommended.

scholarly journals Locate your soundscape: interacting with the acoustic environment

2021 ◽  
Author(s):  
Nicola Orio ◽  
Berardina De Carolis ◽  
Francesco Liotard
Keyword(s):  
Undergraduate Students ◽  
Visual Information ◽  
Mobile App ◽  
Initial Experiment ◽  
Web Based ◽  
Acoustic Environment ◽  
Entire Country ◽  
Interactive Map ◽  
Main Components ◽  
The City

AbstractAlthough overshadowed by visual information, sound plays a central role in how people perceive an environment. The effect of a landscape is enriched by its soundscape, that is, the stratification of all the acoustic sources that, often unconsciously, are heard. This paper presents a framework for archiving, browsing, and accessing soundscapes, either remotely or on-site. The framework is based on two main components: a web-based interface to upload and search the recordings of an acoustic environment, enriched by in- formation about geolocation, timing, and context of the recording; and a mobile app to browse and listen to the recordings, using an interactive map or GPS information. To populate the archive, we launched two crowdsourcing initiatives. An initial experiment examined the city of Padua’s soundscape through the participation of a group of undergraduate students. A broader experiment, which was proposed to all people in Italy, aimed at tracking how the nationwide COVID-19 lockdown was dramatically changing the soundscape of the entire country.

scholarly journals Analysis of the spatial distribution of dengue cases in the city of Rio de Janeiro, 2011 and 2012

2017 ◽  
Vol 51 ◽  
Author(s):  
Silvia Carvalho ◽  
Mônica De Avelar Figueiredo Mafra Magalhães ◽  
Roberto De Andrade Medronho
Keyword(s):  
Information System ◽  
Spatial Distribution ◽  
Rio De Janeiro ◽  
Influencing Factor ◽  
Kernel Density ◽  
Severe Dengue ◽  
Automatic Process ◽  
Density Estimator ◽  
Macroeconomic Policies ◽  
The City

OBJECTIVE Analyze the spatial distribution of classical dengue and severe dengue cases in the city of Rio de Janeiro. METHODS Exploratory study, considering cases of classical dengue and severe dengue with laboratory confirmation of the infection in the city of Rio de Janeiro during the years 2011/2012. The georeferencing technique was applied for the cases notified in the Notification Increase Information System in the period of 2011 and 2012. For this process, the fields “street” and “number” were used. The ArcGis10 program’s Geocoding tool’s automatic process was performed. The spatial analysis was done through the kernel density estimator. RESULTS Kernel density pointed out hotspots for classic dengue that did not coincide geographically with severe dengue and were in or near favelas. The kernel ratio did not show a notable change in the spatial distribution pattern observed in the kernel density analysis. The georeferencing process showed a loss of 41% of classic dengue registries and 17% of severe dengue registries due to the address in the Notification Increase Information System form. CONCLUSIONS The hotspots near the favelas suggest that the social vulnerability of these localities can be an influencing factor for the occurrence of this aggravation since there is a deficiency of the supply and access to essential goods and services for the population. To reduce this vulnerability, interventions must be related to macroeconomic policies.

scholarly journals Mapping the risk for transmission of urban schistosomiasis in the Brazilian Northeast

2020 ◽  
Vol 15 (2) ◽  
Author(s):  
Emília Carolle Azevedo De Oliveira ◽  
Iris Edna Pereira Da Silva ◽  
Ricardo José Ferreira ◽  
Ricardo José de Paula Souza e Guimarães ◽  
Elainne Christine de Souza Gomes ◽  
...  
Keyword(s):  
High Risk ◽  
Demographic Data ◽  
Kernel Density ◽  
Map Algebra ◽  
Breeding Sites ◽  
Snail Intermediate Host ◽  
Basic Sanitation ◽  
Medium Risk ◽  
Brazilian Northeast ◽  
The City

This is an analysis of the risk of schistosomiasis transmission in the city of Recife in the Northeast of Brazil based on the number of schistosomiasis cases (Schistosoma mansoni) registered for the period 2007-2017 together with data resulting from active search of breeding sites of the Biomphalaria snail intermediate host. The analyses were performed using Kernel Density Estimation (KDE), SaTScan and Map Algebra methodology using human socio-demographic data and biotic and abiotic data from the snail breeding sites. Investigating 44 breeding sites resulted in a total of 3.800 snails, 31.8% of which were positive for S. mansoni DNA. These data were considered in relation to total of 652 schistosomiasis cases. The KDE showed two high-risk and two medium-risk clusters, while three significant clusters were identified by SaTScan. Combining these data with the Map Algebra methodology showed that all high-risk neighbourhoods had breeding sites with snails positive for S. mansoni. It was concluded that schistosomiasis transmission cannot be controlled without basic sanitation and sewage management in the presence of Biomphalaria snails. The technique of Map Algebra was found to be fundamental for the analysis and demonstration of areas with a high probability of schistosomiasis transmission.

Understanding Information Seeking Behavior of Faculty and Students

2012 ◽  
pp. 1-21 ◽  
Author(s):  
Nancy Falciani-White
Keyword(s):  
Graduate Students ◽  
Undergraduate Students ◽  
Information Seeking ◽  
Resource Discovery ◽  
Faculty Members ◽  
Significant Information ◽  
Technological Advances ◽  
Seeking Behavior ◽  
Similarities And Differences ◽  
Information Seeking Behaviors

This chapter reviews significant information seeking literature, focusing on general models that can provide a framework for those not familiar with the research in that area. It then explores models and characteristics that are unique to academic users, specifically undergraduate students, graduate students, and faculty members, highlighting similarities and differences among these groups of users. Changes to information seeking that have resulted from technological advances are also examined. The chapter concludes with a look at resource discovery tools in light of what is known about the information seeking behaviors of academic users, and recommendations are provided for those considering adoption of resource discovery tools.

scholarly journals Spatial correlations among ecosystem services and their socio-ecological driving factors: A case study in the city belt along the Yellow River in Ningxia, China

2019 ◽  
Vol 108 ◽  
pp. 64-73 ◽  
Author(s):  
Rongfang Lyu ◽  
Keith C. Clarke ◽  
Jianming Zhang ◽  
Junli Feng ◽  
Xuehui Jia ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Yellow River ◽  
Driving Factors ◽  
The Yellow River ◽  
Spatial Correlations ◽  
The City

scholarly journals How do green areas influence the temperature of cities? Web map to help local decision making about cities and the climate emergency

2021 ◽  
Vol 2 ◽  
pp. 1-6
Author(s):  
Carla Garcia-Lozano ◽  
Anna Peliova ◽  
Josep Sitjar
Keyword(s):  
Urban Areas ◽  
Large Scale ◽  
Decision Makers ◽  
Efficient Manner ◽  
Web Map ◽  
Urban Greenery ◽  
Local Decision ◽  
Local Decision Making ◽  
The City ◽  
Positive Effect

Abstract. The positive effect of urban greenery on the city’s microclimate is well known, as is its ability to reduce the ambient temperature in urban areas. Our results show how the areas with the lowest surface temperature clearly coincide with the vegetated areas in the city of Barcelona. This phenomenon demonstrates the importance of increasing the urban greenery in large compact cities, such as the city of Barcelona, in order to regulate the local temperature and mitigate the effects of global warming on a large scale. The web map presented here can be used as a tool for decision makers to identify the warmest areas in the city of Barcelona and to increase greenery in an efficient manner.

scholarly journals COMMUNITY POLICING: WHAT DOES THE MODEL IMPLEMENTED IN A CITY IN THE AGRESTE OF ALAGOAS REVEAL ABOUT PUBLIC SAFETY?

2018 ◽  
Vol 4 (2) ◽  
pp. 76-91
Author(s):  
Djaíse Rodrigues Cabral ◽  
José Rodolfo Tenório Lima ◽  
Milka Alves Correia Barbosa ◽  
Lyzandra Marthyelly Cavalcante Silva
Keyword(s):  
Police Officers ◽  
Community Policing ◽  
Public Safety ◽  
Field Research ◽  
High Turnover ◽  
Entire Area ◽  
Police Station ◽  
Preventive Actions ◽  
State And Society ◽  
The City

The research addresses the community policing developed at the Brisa do Lago Police Base, located in the city of Arapiraca - Alagoas. Assuming that public safety is a responsibility of all (State and society), Community Policing emerges as a philosophy in which the population and the police work together to identify and seek solutions to solve community problems, with essentially preventive actions. The main objective of the study was to describe how community policing was developed by the Brisa do Lago Police Station in the period from 2012 to 2016. For this purpose, case study was adopted as a method and data was collected using an instrument for a field research which included the visits to the 3rd Military Police Battalion, to the Arapiraca City Hall and to the Brisa do Lago Set, as well as interviews with residents, police officers and community leaders who interacted directly and indirectly at the Base. As the results it was evidenced that the low effective to cover the entire area of the city of Arapiraca was determinant for the closure of the Base, as also the high turnover of police officers and the non-compliance with the guidelines established by the community policing model. Regarding community policing, it was possible to observe that its philosophy was not effectively implemented in that community, being essential a preparation of all the agents involved in this process.

scholarly journals Desvendando Alturas Inacessíveis Por Meio do Teodolito e da Trigonometria

2019 ◽  
Vol 12 (2) ◽  
pp. 234
Author(s):  
Emily De Vasconcelos Santos ◽  
Jaqueline Lixandrão Santos
Keyword(s):  
High School ◽  
Secondary School ◽  
Undergraduate Students ◽  
Daily Life ◽  
Educational Process ◽  
State School ◽  
High School Mathematics ◽  
Second Year ◽  
The City ◽  
Class Teacher

O presente trabalho apresenta o relato de uma atividade prática desenvolvida com alunos do Ensino Médio, visando a compreensão e a representação de conceitos geométricos e trigonométricos presentes em situações da vida cotidiana dos estudantes. A intervenção didática foi desenvolvida por bolsistas do Programa Institucional de Bolsas de Iniciação à Docência (Pibid), discentes de Licenciatura em Matemática, e pelo professor supervisor de área, que também era o docente titular da turma. Sua realização aconteceu em uma Escola Estadual, localizada na cidade de Cuité/PB, em uma turma do segundo ano do Ensino Médio, nos meses de julho e agosto de 2015. Com auxílio do instrumento teodolito e dos conceitos trigonométricos, os alunos conseguiram medir alturas inacessíveis de algumas estruturas que faziam parte da cidade em que residiam e da escola em que estudavam, percebendo, com isso, a importância das relações trigonométricas para a determinação das alturas encontradas. Observou-se que a demonstração da fórmula utilizada para mensurar as alturas contribuiu para que os alunos compreendessem conceitos geométricos e trigonométricos. Além disso, entende-se que a experiência relatada reforça a importância do uso de diversos instrumentos de medidas, como o teodolito, nas aulas de Matemática do Ensino Médio. Eles favorecem o processo educativo dos referidos conceitos, visto que possibilitam a contextualização de seu ensino em situações presentes na rotina dos alunos e dinamizam a ação docente.Palavras-chave: Altura. Trigonometria. Geometria. Teodolito.AbstractThis work reports a practical activity developed with students of High School, aiming at comprehending and representing geometric and trigonometric concepts experienced in situations of students’ daily life. The didactic intervention was developed by grant holders from the Institutional Program of Scholarship for teaching initiation (Pibid), undergraduate students in Mathematics, and the area supervisor, who was also the class teacher. It took place in a Public State School, located in the city of Cuité / PB, in a second year class of the Secondary School,  in the months of July and August of 2015. With the aid of the instrument theodolite and trigonometric concepts, the students were able to measure inaccessible heights of some structures that were part of the city where they lived and the school where they studied, thereby realizing the importance of trigonometric relations for determining the heights found. It was noted that the demonstration of the formula used to measure the heights contributed for the students to understand geometric and trigonometric concepts. In addition, it is understood that the reported experience reinforces the importance of the use of different instruments of measures, such as the theodolite, in High School Mathematics classes. They are helpful in the educational process of acquiring these concepts, since they allow the contextualization of their teaching in situations that are part of the students’ routine and dynamize the teaching activity.Keywords: Height. Trigonometry. Geometry. Theodolite.

scholarly journals Factors that influence the usability of a participatory IVR crowdsourcing system in a smart city

2017 ◽  
Vol 29 (3) ◽  
Author(s):  
Liezel Cilliers ◽  
Stephen Flowerday
Keyword(s):  
South Africa ◽  
Factor Analysis ◽  
Public Safety ◽  
Smart Cities ◽  
Survey Method ◽  
City Management ◽  
Perceived Satisfaction ◽  
Literacy Level ◽  
The City ◽  
New Infrastructure

‘Smart Cities’ is a new and inventive approach that allows city management to use current infrastructure and resources more effectively. Participatory crowdsourcing is an effective method to collect data from the citizens, as it does not require costly new infrastructure and can be used by all citizens, regardless of their literacy level. To date, very few studies have investigated the usability these participatory crowdsourcing systems in a developing country context. The focus of this paper is then to provide a model for the usability of the IVR system to collect information from citizens to improve public safety in the city. The study makes use of a quantitative survey method. A questionnaire was completed by 361 participants of a public safety project hosted East London, South Africa. The data analysis was completed making use of factor analysis. The results indicated that efficiency and perceived satisfaction with the system was important elements that determined the usability of the system. The recommendation of the study is then that the city management must take these two elements in to account when designed or developing a participatory crowdsourcing system.

scholarly journals Strategies to Improve Skills to Write Stories: A Case Study in Universities in Tulungagung City

2020 ◽  
Vol 5 (1) ◽  
pp. 121
Author(s):  
Dwi Astuti Nurhayati ◽  
Djatmika Djatmika
Keyword(s):  
Undergraduate Students ◽  
English Language ◽  
Text Structure ◽  
Narrative Texts ◽  
Study Program ◽  
Narrative Format ◽  
Discourse Units ◽  
The City

The article discusses the quality of language exploitation performed by the students of the English Language Study Program in the City of Tulungagung in writing English text stories. The data was collected for 4 months, starting May up to August 2020 in IAIN Tulungagung campus in the sense of data collection, through the observation. This study used case study design and involves 43 Indonesian undergraduate students and who were majoring in English. Narrative texts produced by the students were collected to be analyzed using a qualitative approach. Two aspects becoming the focus of discussion are the text structure and the text texture. The former represents how discourse units are selected and arranged in accordance to the narrative format, while the latter is related to how grammar is exploited and how words are selected for the stories. The results show that most of the students are very good in selecting and arranging discourse unit to build the stories. Meanwhile, they still show weaknesses in constructing grammar and selecting words for the stories. In these areas, inferences from Indonesian and Javanese languages happen.

Sign in / Sign up

Export Citation Format

Share Document