scholarly journals Spatial Analysis of Gunshot Reports on Twitter in Mexico City

2021 ◽  
Vol 10 (8) ◽  
pp. 540
Author(s):  
Enrique García-Tejeda ◽  
Gustavo Fondevila ◽  
Oscar S. Siordia
Keyword(s):  
Spatial Analysis ◽  
Mexico City ◽  
Nearest Neighbor ◽  
Kernel Estimation ◽  
Test Methods ◽  
Spatial Concentration ◽  
The West ◽  
Exact Test ◽  
Firearm Violence ◽  
The City

The quarantine and stay-at-home measures implemented by most governments significantly impacted the volume and distribution of crime, and already, a body of literature exists that focuses on the effects of lockdown on crime. However, the effects of lockdown on firearm violence have yet to be studied. Within this context, this study analyzes reports of gunshots in Mexico City registered on Twitter from October 2018 to 2019 (pre-COVID-19) and from October 2019 to 2020 (during COVID-19), using a combination of spatial (nearest neighbor ratio, Ripley’s K function and kernel estimation) and non-spatial (Fisher’s exact test) methods. The results indicate a spatial concentration of gunshot reports in Mexico City and a reduction in frequency of reports during the pandemic. While they show no change in the overall concentration of gunshots during lockdown, they do indicate an expansion in the patterns of spatial intensity (moving from the west to the center of the city). One possible explanation is the capacity of possible victims of firearm crimes in certain municipalities to comply with lockdown measures and thus avoid exposure to such crimes.

scholarly journals UNA PRIMERA ESTIMACION DEL TRANSPORTE DE S02 SOBRE LA CIUDAD DE MEXICO

1981 ◽  
Vol 20 (1) ◽  
pp. 55-79
Author(s):  
E. Jauregui ◽  
D. Klaus ◽  
W. Lauer
Keyword(s):  
Mexico City ◽  
Correlation Coefficients ◽  
Quality Standard ◽  
The West ◽  
Time Intervals ◽  
Data Space ◽  
Transport Length ◽  
Time Correlations ◽  
Wind Intensity ◽  
The City

Correlation coefficients for SO2, CO and suspended particles between four monitoring stations located in extreme NW, NE, SW and SE corners of Mexico City urban area are found to be significantly high. The air quality standard for SO2 (0.10 ppm) was exceeded more than 10% of the time in January 1976. SO2 concentrations as well as wind intensity at the same four stations were found to be log-normally distributed for the January data.  Space-time correlations between the different stations and at different time-intervals were also studied to establish the transport length scale of SO2 over the city.  A distinct peak of correlation at two-hour interval over the center west of city (Chapultepec Park) indicates a southward flow of contaminants along the foot hills of mountains to the west.

scholarly journals Bandas beyond their ‘Ethnographic Present’: Neoliberalism and the Possibility of Meaning in Mexico City

2017 ◽  
Vol 1 (3) ◽  
pp. 102-124 ◽  
Author(s):  
Adina Radosh Sverdlin
Keyword(s):  
Mexico City ◽  
Children And Youth ◽  
Temporal Distance ◽  
Santa Fe ◽  
The West ◽  
Youth Groups ◽  
Youth Organization ◽  
Life Trajectories ◽  
Neoliberal Reforms ◽  
The City

Mexico faced significant financial crises during the late seventies and early eighties emanating from the Mexico City, due to its centrality. These crises were connected to the introduction of neoliberal reforms in the country. Simultaneously, a form of children and youth organization appeared in some of the incipient and impoverished neighbourhoods in the West of the city, the bandas; parallel to the inception of ‘City Santa Fe,’ a luxurious utopia. Difficult urban and social conditions, violence and uncertainty not only gave birth to the bandas, but became their insignia. A temporal distance of nearly three decades from the birth of the bandas allows for a procedural analysis that overcomes the temptation to limit a research on youth groups to their ‘ethnographic present.’ The bandas’ members narrate their life trajectories as search for better scenarios and, along the way, find meaning and order in otherwise chaotic events. Belonging to a banda serves as a coordinate from where to array a set of events and processes, and assess their outcomes, a coordinate for framing certain ‘masculinity projects’, allowing feelings of progression, satisfaction and even redemption.

Cities-Before-Cities

2017 ◽  
Author(s):  
Daniel W. Berman
Keyword(s):  
Crucial Role ◽  
The West ◽  
Central Greece ◽  
Form And Function ◽  
South Italy ◽  
Crucial Component ◽  
And Function ◽  
The City

Foundation myths are a crucial component of many Greek cities’ identities. But the mythic tradition also represents many cities and their spaces before they were cities at all. This study examines three of these ‘prefoundational’ narratives: stories of cities-before-cities that prepare, configure, or reconfigure, in a conceptual sense, the mythic ground for foundation. ‘Prefoundational’ myths vary in both form and function. Thebes, before it was Thebes, is represented as a trackless and unfortified backwater. Croton, like many Greek cities in south Italy, credited Heracles with a kind of ‘prefounding’, accomplished on his journey from the West back to central Greece. And the Athenian acropolis was the object of a quarrel between Athena and Poseidon, the results of which gave the city its name and permanently marked its topography. In each case, ‘prefoundational’ myth plays a crucial role in representing ideology, identity, and civic topography.

Introduction

2017 ◽  
Author(s):  
George Hoffmann
Keyword(s):  
Chief Editor ◽  
City Council ◽  
The West ◽  
Son Of God ◽  
Warm Summer ◽  
The City

On a warm summer afternoon in 1561, Calvin’s chief editor donned a heavy stole, thick robes, and a gleaming tiara and proceeded to strut and fret his hour upon the stage in a comedy of his own devising. For little more than a century, Christians in the West had celebrated on August 6th Christ’s Transfiguration as the son of God in shining robes. But on this Sunday in Geneva, the city council, consistory, and an audience fresh from having attended edifying sermons at morning service gathered to applaud the transfiguration of the learned Conrad Badius into the title role of ...

Diocletian's Price-Edict at Ptolemais (Cyrenaica)

1955 ◽  
Vol 45 (1-2) ◽  
pp. 106-115 ◽  
Author(s):  
Giacomo Caputo ◽  
Richard Goodchild
Keyword(s):  
Hellenistic Period ◽  
The West ◽  
Italian Government ◽  
Systematic Exploration ◽  
Roman Age ◽  
The City ◽  
Made In ◽  
Late Roman

Introduction.—The systematic exploration of Ptolemais (modern Tolmeita), in Cyrenaica, began in 1935 under the auspices of the Italian Government, and under the direction of the first-named writer. The general programme of excavation took into consideration not only the important Hellenistic period, which gave the city its name and saw its first development as an autonomous trading-centre, but also the late-Roman age when, upon Diocletian's reforms, Ptolemais became capital of the new province of Libya Pentapolis and a Metropolitan See, later occupied by Bishop Synesius.As one of several starting-points for the study of this later period, there was selected the area first noted by the Beecheys as containing ‘heaps of columns’, which later yielded the monumental inscriptions of Valentinian, Arcadius, and Honorius, published by Oliverio. Here excavation soon brought to light a decumanus, running from the major cardo on the west towards the great Byzantine fortress on the east. Architectural and other discoveries made in 1935–36 justified the provisional title ‘Monumental Street’ assigned to this ancient thoroughfare. In terms of the general town-plan, which is extremely regular, this street may be called ‘Decumanus II North’, since two rows of long rectangular insulae separate it from the Decumanus Maximus leading to the West Gate, still erect. The clearing of the Monumental Street and its frontages revealed the well-known Maenad reliefs, attributed to the sculptor Callimachus, a late-Roman triple Triumphal Arch, and fragments of monumental inscriptions similar in character to those previously published from the same area.

scholarly journals An Integrated Approach Using Spatial Analysis to Study the Risk Factors for Leishmaniasis in Area of Recent Transmission

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Júlia Alves Menezes ◽  
Eduardo de Castro Ferreira ◽  
José Dilermando Andrade-Filho ◽  
Alessandra Mara de Sousa ◽  
Mayron Henrique Gomes Morais ◽  
...  
Keyword(s):  
Spatial Analysis ◽  
Integrated Approach ◽  
Climatic Conditions ◽  
Sand Fly ◽  
Leishmania Braziliensis ◽  
Lutzomyia Longipalpis ◽  
Recent Transmission ◽  
Current Transmission ◽  
Canine Infection ◽  
The City

Some epidemiological aspects of leishmaniasis in the municipality of Formiga, Brazil, an important touristic site, were evaluated. Those included phlebotomine sand fly vectors, canine infection, and geoprocessing analysis for determining critical transmission areas. Sand flies (224 insects) belonging to ten different species were captured. The most captured species includedLutzomyia longipalpis(35.3%),Lutzomyia cortelezzii(33.5%), andLutzomyia whitmani(18.3%). A significant correlation between sand fly densities and climatic conditions was detected. Serological diagnosis (DPP and ELISA) was performed in 570 dogs indicating a prevalence of 5.8%. After sequencing the main species circulating in the area wereLeishmania infantumandLeishmania braziliensis. Spatial analysis demonstrated that vegetation and hydrography may be related to sand fly distribution and infected dogs. The municipality of Formiga has proven leishmaniasis vectors and infected dogs indicating the circulation of the parasite in the city. Correlation of those data with environmental and human cases has identified the critical areas for control interventions (south, northeast, and northwest). In conclusion, there is current transmission of visceral and canine human cases and the city is on the risk for the appearance of cutaneous cases.

The Battle of Finsbury Field and Its Wider Context

1991 ◽  
Vol 8 ◽  
pp. 271-287
Author(s):  
A. G. Dickens
Keyword(s):  
Church And State ◽  
Common Knowledge ◽  
The West ◽  
Present Essay ◽  
The Reformation ◽  
Sir Thomas Wyatt ◽  
The Government ◽  
Mary Tudor ◽  
The City ◽  
Northern Wall

On 4 March 1554 some hundreds of London schoolboys fought a mock battle on Finsbury Field outside the northern wall of the city. Boys have always gratified their innate romanticism by playing at war, yet this incident, organized between several schools, was overtly political and implicitly religious in character. It almost resulted in tragedy, and, though scarcely noticed by historians, it does not fail to throw Ught upon London society and opinion during a major crisis of Tudor history. The present essay aims to discuss the factual evidence and its sources; thereafter to clarify the broader context and significance of the affair by briefer reference to a few comparable events which marked the Reformation struggle elsewhere. The London battle relates closely to two events in the reign of Mary Tudor: her marriage with Philip of Spain and the dangerous Kentish rebellion led by the younger Sir Thomas Wyatt. The latter’s objectives were to seize the government, prevent the marriage, and, in all probability, to place the Princess Elizabeth on the throne as the figurehead of a Protestant regime in Church and State. While Wyatt himself showed few signs of evangelical piety, the notion of a merely political revolt can no longer be maintained. Professor Malcolm R. Thorp has recendy examined in detail the lives of all the numerous known leaders, and has proved that in almost every case they display clear records of Protestant conviction. It is, moreover, common knowledge that Kent, with its exceptionally large Protestant population, provided at this moment the best possible recruiting-area in England for an attack upon the Catholic government. Though the London militia treasonably went over to Wyatt, the magnates with their retinues and associates rallied around the legal sovereign. Denied boats and bridges near the capital, Wyatt finally crossed the Thames at Kingston, but then failed to enter London from the west. By 8 February 1554 his movement had collapsed, though his execution did not occur until 11 April.

Hydrogeochemical indications of regional flow in the Lower Greensand aquifer of the London Basin

2021 ◽  
pp. qjegh2021-028
Author(s):  
W. George Darling ◽  
Melinda A. Lewis
Keyword(s):  
Environmental Isotopes ◽  
Published Data ◽  
Confined Aquifer ◽  
The West ◽  
Content Type ◽  
Regional Flow ◽  
Fresh Perspective ◽  
Southern Side ◽  
Chalk Aquifer ◽  
The City

The Lower Greensand (LGS) forms the second most important aquifer in the London Basin but, being largely absent beneath the city itself, has received much less attention than the ubiquitous overlying Chalk aquifer. While the general directions of groundwater flow in the Chalk are well established, there has been much less certainty about flow in the LGS owing to regionally sparse borehole information. This study focuses on two hitherto uncertain aspects of the confined aquifer: the sources of recharge to the west-central London Basin around Slough, and the fate of LGS water where the aquifer thins out on the flank of the London Platform in the Gravesend–Medway–Sheppey area on the southern side of the basin. The application of hydrogeochemical techniques including environmental isotopes indicates that recharge to the Slough area is derived from the northern LGS outcrop, probably supplemented by downward leakage from the Chalk, while upward leakage from the LGS in North Kent is mixing with Chalk water to the extent that some Chalk boreholes on the Isle of Sheppey are abstracting high proportions of water with an LGS fingerprint. In doing so, this study demonstrates the value of re-examining previously published data from a fresh perspective.Thematic collection: This article is part of the Hydrogeology of Sandstone collection available at: https://www.lyellcollection.org/cc/hydrogeology-of-sandstone

scholarly journals Patterns of blunt force homicide in the West Metropole of the City of Cape Town, South Africa

2017 ◽  
Vol 113 (5/6) ◽  
Author(s):  
Courtnee Clark ◽  
Calvin G. Mole ◽  
Marise Heyns ◽  
◽  
◽  
...  
Keyword(s):  
South Africa ◽  
Cape Town ◽  
Future Research ◽  
The West ◽  
Blunt Force ◽  
Blunt Force Trauma ◽  
Lack Of Information ◽  
Salt River ◽  
The City ◽  
Ballistic Trauma

There is currently a lack of information regarding the prevalence of and characteristics associated with blunt force trauma related homicides in South Africa. Information relating to the patterns of blunt force trauma could assist in the development and implementation of interventions targeted at specific areas or individuals as well as direct future research towards areas in need of investigation. This study is a 5-year retrospective review of autopsy reports obtained from Salt River Mortuary (Cape Town, South Africa). The prevalence of blunt force trauma was considered for unnatural deaths with a focus on homicide. The patterns of homicidal blunt force trauma are also presented. A total of 15 519 autopsy cases was analysed. In 1198 (7.72%) of these cases, the cause of death was found to be blunt force trauma and 828 (5.32%) of these cases were classified as homicides. Approximately 11% of blunt force homicide cases occurred in combination with sharp and/or ballistic trauma. Men from poor socio-economic areas were shown to be most at risk of blunt force homicide in the City of Cape Town.

The Things of Heaven Shall Become the Things of Earth

1988 ◽  
Vol 5 (1) ◽  
pp. 21-25
Author(s):  
Anna Marie Aagaard
Keyword(s):  
The West ◽  
Old Men ◽  
The City

AbstractThe word of the Lord of Hosts came to me: These are the words of the Lord of Hosts: I have been jealous for Zion, fiercely jelous for her. Now, says the Lord, I have come back to Zion and I will dwell in Jerusalem. Jerusalem shall be called the City of Truth, and the mountain of the Lord of Hosts shall be called the Holy Montain. These are the words of the Lord of Hosts: Once again shall old men and old women sit in the streets of Jerusalem, each leaning on a stick because of their great age; and the streets of the city shall be full of boys and girls, playing in the streets. These are the words of the Lord of Hosts: Even if it may seem impossible to the survivors of this nation on that day, will it also seem impossible to me? This is the very words of the Lord of Hosts. These are the words of the Lord of Hosts: See I will rescue my people from the countries of the east and the west, and bring them back to live in Jerusalem. They shall be my people, and I will be their God, in truth and justice. Zechariah 8,1-8 (NEB)

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