scholarly journals The Neighborhood Contagion Focus as a Spatial Unit for Diagnosis and Epidemiological Action against COVID-19 Contagion in Urban Spaces: A Methodological Proposal for Its Detection and Delimitation

Author(s):  
María-Jesús Perles ◽  
Juan F. Sortino ◽  
Matías F. Mérida

The concept of neighborhood contagion focus is defined and justified as a basic spatial unit for epidemiological diagnosis and action, and a specific methodological procedure is provided to detect and map focuses and micro-focuses of contagion without using regular or artificial spatial units. The starting hypothesis is that the contagion in urban spaces manifests unevenly in the form of clusters of cases that are generated and developed by neighborhood contagion. Methodologically, the spatial distribution of those infected in the study area, the city of Málaga (Spain), is firstly analyzed from the disaggregated and anonymous address information. After defining the concept of neighborhood contagion focus and justifying its morphological parameters, a method to detect and map neighborhood contagion focus in urban settings is proposed and applied to the study case. As the main results, the existence of focuses and micro-focuses in the spatial pattern of contagion is verified. Focuses are considered as an ideal spatial analysis unit, and the advantages and potentialities of the use of mapping focus as a useful tool for health and territorial management in different phases of the epidemic are shown.

2015 ◽  
Vol 30 (2) ◽  
pp. 327 ◽  
Author(s):  
Gabriela Mera ◽  
Mariana Marcos ◽  
María Mercedes Di Virgilio

En el marco de la pregunta por las diferencias y desigualdades metropolitanas, este artículo se propone estudiar la distribución espacial de la población extranjera en la Ciudad de Buenos Aires a partir de una tipología de contextos urbanos o tipos de hábitat, definidos en función del periodo de urbanización y la forma de producción del espacio habitacional. Tomando como fuente investigaciones previas y datos del Censo Nacional de Población, Hogares y Viviendas 2010, se realiza un análisis cuantitativo que indaga cómo se articula la diferenciación por condición migratoria con estos entornos que conforman la estructura socioespacial de la ciudad.Abstract:Within the framework of the question of metropolitan differences and inequalities, this article seeks to study the spatial distribution of the foreign population in the City of Buenos Aires on the basis of a typology of urban contexts or types of habitat, defined in terms of the period of urbanization and the form of production of the living space. Based on previous research and data from the National Census of Population and Housing 2010, a quantitative analysis is undertaken to explore how differentiation by migratory condition is linked to these environments that comprise the socio-spatial structure of the city.


2019 ◽  
Vol 4 (1) ◽  
pp. 28-31
Author(s):  
S M TOWHIDUR RAHMAN ◽  
Ahsanul Kabir ◽  
Ahsanul Kabir

  Do Manufacturing Small and Medium Enterprises Cluster Geographically in Khulna City? – A Spatial Analysis   S M Towhidur Rahman* Business Administration Discipline Khulna University Bangladesh Ahsanul Kabir, PhD Urban and Rural Planning Discipline Khulna University Bangladesh   *Corrosponding author’s Email: [email protected]   Author’s Biography (optional) Picture 100 words maximum.           Peer-review under responsibility of 3rd Asia International Multidisciplanry Conference 2019 editorial board (http://www.utm.my/asia/our-team/) © 2019 Published by Readers Insight Publisher, lat 306 Savoy Residencia, Block 3 F11/1,44000 Islamabad. Pakistan, [email protected] This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).       Research Highlights The study found a clustered spatial pattern of manufacturing small and medium enterprises (SMEs) in the study area, Khulna city of Bangladesh. This pattern helps determine the potential cluster regions (PCR) for manufacturing industry which is the important first step in cluster based regional economic development strategy. The manufacturing SMEs were found to cluster along the major transportatin routes of city. The SMEs are also not evenly distributed across the city area and couple of wards (Ward 21 & Ward 30) have more geographic potentials to be developed as potential cluster regions since SMEs tend to agglomerate in these wards more in numbers.               ___________________________________________________________________________ Graphical Abstract   Figure: Ward wise distribution of manufacturing SMEs across Khulna city ________________________________________________________________   Research Objectives Industrialization and economic growth are often correlated as evident from literatures (Sahu, 2013). Manufacturing SMEs play a pivotal role in industrialzation process and regional growth since they constitue the major portion of the industry sector in both developed and developing countries of the world (Li & Chen, 2005; Tambunan, 2008). Development of SME cluster had beed recognized as an effective strategy for regional development since such clusters enhance the competitiveness of the industries and the region as a whole (Karaev, Lenny Koh, & Szamosi, 2007; Navickas & Malakauskaite, 2009). Bangladesh is undergoing a transformation in economic structure from agriculture to indutry and service based economy. Government of Bangladesh also prioritized the cluster based development of industries (General Economics Division, 2015). Porter (2000) noted that some locational advantages are a prerequisite for successful formation of cluster and effective implementation of cluster based economic development (CBED) strategy. Identifying potential cluster region is an important first step in CBED. But very few reseach had been found in the context of Bangladesh focusing on industry cluster identification. Researches applying of geospatial tools for cluster identification are even fewer in numbers. So this study aimed to contribute to the existing literature through identifying potential cluster regions of manufacturing SMEs in Khulna applying geo-statistical tools. Methodology The study is based on primary data (regarding type, number and location of manufacturing SMEs) collected through a city wide survey in Khulna City Corporation (KCC) area. The location data of the SMEs were then plotted on the map of KCC applying GIS mapping tools that generated location coordinates (as point feature) for each SME for further analysis. The distribution of SMEs in terms of distance from two spatial variables - major roads and river were shown applying kernel density plot. The spatial pattern were explored through computing Average nearest neoghbour ratio (ANN). ANN ratio is used to measues whether the features (SMEs) are geographically clustered, dipersed or distributed randomly. An ANN ratio less than 1 (ANNR<1) indicates clusered pattern of distribution of the features while ANN ration greater than 1 (ANNR>1) exhibits dispersed pattern and ANN ratio 1 (ANNR=1) exhibits perfectly random distribution. The distribution of the SMEs was aslo shown through generating a choropleth map in terms of number of SMEs across the 31 wards of the city to find potential cluster region. The spatial analysis was done using ArcGIS 10.1 and R statistical software package.        Results The survey identifyied over 800 manufacturing SMEs in the city which were categorized into five categories – light engineering, agro-processing, leather shoe making, bakery and food processing and timeber and furniture. The study found that all categories of SMEs tend to cluster along the major roads of the city. The Kernel Density plots based on proximity to roads show that all categories of SMEs are located within around 100meters from the major roads of the city while in terms of proximity to river the location of SMEs vary for different categories of SMEs. Further the study found the average nearest neighbour ratios for light engineering, agro-processing, leather shoe making, bakery and food processing and timber and furniture SMEs were 0.214, 0.372, 0.194, 0.215 and 0.176 respectively. Since ANN ratios for all the categories are less than 1, the distributions exhibit a clustered pattern and the ratios were significant at 99% confidence level with P values less than 0.01 implying that the null hypothesis “Manufacturing SMEs in all categories are randomly distributed across the city area” is rejected. The SMEs were located unevenly across 31 wards (smallest adminitrative boundary) of the city wherein ward number 21 and ward number 30 had the highest (56-96 units) number of firms. Findings The major categories of manufacturing SMEs in Khulna city tend to locate close to other similar firms and exhibit a clustered spatial pattern. All categories of manufacturing SMEs were found to cluster along the major roads due to transportation convenience and improved visibility. The SMEs were found to clsuster more in couple of the wards of the city indicating to the potential cluster regions. These wards are characterized as having low cost spaces, good connectivity to other parts of the country, proximity to central wholesale market, administrative headquarter and major financial institutions and above all more circulation of people.    


2012 ◽  
Vol 45 (1) ◽  
pp. 100-105 ◽  
Author(s):  
Udelysses Janete Veltrini Fonzar ◽  
Hélio Langoni

INTRODUCTION: Leptospirosis is a zoonotic disease, the primary hosts of which are wild, synanthropic, and household animals. Humans behave as terminal and accidental hosts. The prevalence of leptospirosis depends on carrier animals that disseminate the agent, on the environmental survival of this agent, and on the contact of susceptible individuals. Each serovar has one or more hosts with different adaptation levels. The focuses of leptospirosis are infected, sick, and asymptomatic animals, which are considered to be sources of environmental infection. This study aimed to determine the risk areas for leptospiral infection in stray dogs and patients diagnosed with leptospirosis from 2006 to 2008 in Maringá, State of Paraná, Brazil. METHODS: Three hundred and thirty-five stray dogs and 25 patients were studied. Serum from both animals and patients was examined by the microscopic serum agglutination test to study anti-leptospiral antibodies. To determine the risk areas and the spatial distribution of the disease, thematic maps were designed. RESULTS: Forty-one (12.2%) dogs positive for one or more leptospire serovars were observed, the most frequent serovars being Pyrogenes (43.9%), Canícola (21.9%), and Copennhageni (19.5%). Among the humans, 2 (8%) were positive for serovars Pyrogenes and Hardjo Prajitno and for Pyrogenes and Cynopteri. CONCLUSIONS: Spatial analysis showed that the risk for dogs and humans in the City of Maringá to become infected with leptospires exists in both the central and the peripheral areas, a fact that reinforces the relevance of this study and of continuous epidemiological and environmental surveillance actions to control the disease in animals and in humans.


Author(s):  
Olena Oliynyk

The article considers the problem of open public spaces preserving – such as streets, squares, parks and other elements of the urban structure. The Council of Europe and UNESCO view urban spaces as a part of the city’s cultural landscape, as bearers of its identity and cultural memory, and their preservation as the key to the sustainable development of historic cities and the foundation of democracy. Therefore, the system of open spaces of the city should, according to the recommendations of UNESCO, be considered as a cultural heritage site, an integral part of the cultural landscape of the city. We can talk about the preservation of public urban spaces only when they are part of the network of pedestrian spaces of the city and have the appropriate function. However, defining the boundaries of the historical spatial planning system and the principles of its formation is also a problem. Steady fragments of the spatial planning system of the city, which have certain historical characteristics, are not always preserved as a whole urban development and in some places have the form of individual fragments. Methods of spatial analysis and environmental zoning are used to determine the compositional basis and degree of preservation of the spatial fabric of the city. The method of spatial analysis allows to formalize a complex multilevel pattern of urban fabric of the city, highlighting only the compositional-spatial aspects of perception; to identify the compositional structure of urban spaces. The method of environmental zoning is based on the identification of the most established links in its urban structure, namely - systems of open pedestrian urban spaces, of which the transit spaces (streets) determine the compositional structure and historical "ornament" of the street network, and spaces of stay (squares, intra-quarter spaces) - their social role and content, identity of the city.


2014 ◽  
Vol 94 (3) ◽  
pp. 41-54 ◽  
Author(s):  
Stefan Paunovic ◽  
Filip Krstic

This paper represents the attempt to map and analyze spatial distribution of illegal landfills in the City of Belgrade. To make this happen the main tasks were to form the geospatial database of illegal landfills in the study area and to analyze the patterns in their spatial distribution. The data on the landfill locations were obtained from the Agency of Environmental Protection of the Republic of Serbia, while the ArcGIS software was used for their spatial analysis. The City of Belgrade, respectively the public utility companies use five landfills, which cover up the area of 89 ha. On the other hand, in the study area there are 223 illegal landfills. The spatial analysis showed two patterns: (1) increasing of the number of illegal landfills with distancing from the city urban center, and (2) increasing of their number with distancing from the municipal centers. This paper also showed that there is landfill clustering, or that their spatial distribution is not random.


2021 ◽  
Vol 778 (1) ◽  
pp. 012031
Author(s):  
R R Maulana ◽  
U J Cahyono ◽  
M Muqoffa

Abstract The phenomenon of the rise of coffee-drinking has become a trend economic-cultural as globalization in lifestyle for the community in Surakarta. This coffee-drinking habit increasingly supporting the emergence of coffee shops that keep flourishing and the number continuously expand. Specifically, each coffee shop presents their own theme and display the architectural style that show its earmark of the coffee shops. It indicates that the growth of coffee shop has contributed to enrich the architecture in the city. The aim of the paper to identify spatial distribution patterns of the emergence of coffee shop in Surakarta. The research is carried out through spatial analysis, which is mapping the distribution of the coffee shops. Later, use spatial observation to find the patterns of distribution from the emergence of the coffee shop. As a result, is expected to be an outset for further research of spatial development structure as seen from the growth of coffee shop in Surakarta.


2021 ◽  
pp. 073346482097800
Author(s):  
Kwangyul Choi ◽  
Yeonjung Lee ◽  
Zoe Basrak

Ensuring accessibility to necessary services is critical for older adults. However, there often exist spatial disparities in the levels of accessibility to services. Because the application of Geographic Information System (GIS) has gained attention in the gerontology field, we used spatial analysis to identify communities of concern for older adults from the perspective of accessibility. We defined the communities of concern based on the proportion of older adults and the level of accessibility to health, social, and daily services via two specific modes of transportation—walking and public transit. Our findings show that newly developed communities tend to have less accessibility to necessary services, and aging communities are randomly distributed across the city. Our results call for interdisciplinary collaboration, between urban planning and gerontology professionals, to better understand the spatial pattern of aging communities and its implication for properly addressing the mobility needs of older adults in the communities.


2010 ◽  
Vol 138 (9) ◽  
pp. 1346-1352 ◽  
Author(s):  
M. L. CORKERON ◽  
R. NORTON ◽  
P. N. NELSON

SUMMARYBurkholderia pseudomallei, the causative agent of melioidosis is associated with soil. This study used a geographic information system (GIS) to determine the spatial distribution of clinical cases of melioidosis in the endemic suburban region of Townsville in Australia. A total of 65 cases over the period 1996–2008 were plotted using residential address. Two distinct groupings were found. One was around the base of a hill in the city centre and the other followed the old course of a major waterway in the region. Both groups (accounting for 43 of the 65 cases examined) are in areas expected to have particularly wet topsoils following intense rainfall, due to soil type or landscape position.


Author(s):  
Nurul Qamila ◽  
Agel Vidian Krama

Dengue hemorrhagic fever (DHF) is a contagious disease caused by the dengue virus and is transmitted by the mosquito Aedes aegypti (Aa.aegypti). The population is still a public health problem that increases the number of sufferers and also widespread, with population and education. This study aims to reveal the spatial pattern and distribution of Dengue Hemorrhagic Fever (DHF) with the spatial pattern and the spread of Dengue Hemorrhagic Fever (DHF) can result in different locations of these allegations. From the map that can be used for the prevention of Dengue Hemorrhagic Fever (DBD) in Bandar Lampung City. This study aims to reveal the spatial pattern and distribution of Dengue Hemorrhagic Fever (DHF) with the descriptive method and spatial pattern of Dengue Hemorrhagic Fever (DHF) can result in different locations of these allegations. From the map that can be used for the prevention of Dengue Hemorrhagic Fever (DBD) in Bandar Lampung City. Keywords: DHF, Spatial Analysis


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