scholarly journals Big data insight on global mobility during the Covid-19 pandemic lockdown

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Adam Sadowski ◽  
Zbigniew Galar ◽  
Robert Walasek ◽  
Grzegorz Zimon ◽  
Per Engelseth
Keyword(s):  
Human Mobility ◽  
Weighted Average ◽  
Global Perspective ◽  
Huge Number ◽  
Significant Relationships ◽  
Global Mobility ◽  
Recreation Areas ◽  
The Difference ◽  
Time Offset ◽  
The City

AbstractThe Covid-19 pandemic that began in the city of Wuhan in China has caused a huge number of deaths worldwide. Countries have introduced spatial restrictions on movement and social distancing in response to the rapid rate of SARS-Cov-2 transmission among its populations. Research originality lies in the taken global perspective revealing indication of significant relationships between changes in mobility and the number of Covid-19 cases. The study uncovers a time offset between the two applied databases, Google Mobility and John Hopkins University, influencing correlations between mobility and pandemic development. Analyses reveals a link between the introduction of lockdown and the number of new Covid-19 cases. Types of mobility with the most significant impact on the development of the pandemic are “retail and recreation areas", "transit stations", "workplaces" "groceries and pharmacies”. The difference in the correlation between the lockdown introduced and the number of SARS-COV-2 cases is 81%, when using a 14-day weighted average compared to the 7-day average. Moreover, the study reveals a strong geographical diversity in human mobility and its impact on the number of new Covid-19 cases.

scholarly journals Quantifying the impacts of human mobility restriction on the spread of COVID-19: an empirical analysis from 344 cities of China

2020 ◽  
Author(s):  
Jing Tan ◽  
Yiquan Xiong ◽  
Shaoyang Zhao ◽  
Chunrong Liu ◽  
Shiyao Huang ◽  
...  
Keyword(s):  
Human Mobility ◽  
Large Population ◽  
Disease Spread ◽  
Population Mobility ◽  
Population Sizes ◽  
The Difference ◽  
Novel Coronavirus ◽  
The Impact ◽  
The City ◽  
Over Time

AbstractObjectiveSince the outbreak of novel coronavirus pneumonia (COVID-19), human mobility restriction measures have raised controversies, partly due to inconsistent findings. Empirical study is urgently needed to reliably assess the causal effects of mobility restriction.MethodsOur study applied the difference-in-difference (DID) model to assess declines of population mobility at the city level, and used the log-log regression model to examine the effects of population mobility declines on the disease spread measured by cumulative or new cases of COVID-19 over time, after adjusting for confounders.ResultsThe DID model showed that a continual expansion of the relative declines over time in 2020. After four weeks, population mobility declined by 54.81% (interquartile ranges, −65.50% to −43.56%). The accrued population mobility declines were associated with significant reduction of cumulative COVID-19 cases throughout six weeks (i.e., 1% decline of population mobility was associated with 0.72% (95%CI 0.50% to 0.93%) reduce of cumulative cases for one week, 1.42% two weeks, 1.69% three weeks, 1.72% four weeks,1.64% five weeks and 1.52% six weeks). The impact on weekly new cases seemed greater in the first four weeks, but faded thereafter. The effects on cumulative cases differed by cities of different population sizes, with greater effects seen in larger cities.ConclusionPersistent population mobility restrictions are well deserved. However, a change in the degree of mobility restriction may be warranted over time, particularly after several weeks of rigorous mobility restriction. Implementation of mobility restrictions in major cities with large population sizes may be even more important.

scholarly journals Towards a Comprehensive Measure of the Ambient Population: Building Estimates Using Geographically Weighted Regression

2021 ◽  
Author(s):  
Annabel Whipp ◽  
Nick Malleson ◽  
Jonathan Ward ◽  
Alison Heppenstall
Keyword(s):  
Urban Areas ◽  
Small Area ◽  
Human Mobility ◽  
Statistical Modelling ◽  
City Centre ◽  
Night Time ◽  
Significant Relationships ◽  
The City ◽  
Ambient Population ◽  
Inform Decision Making

Estimates of the resident population fail to account for human mobility, which significantly impacts the numbers of people in urban areas. Employing the ambient population provides a more nuanced approach to small-area population estimation. This paper utilises statistical modelling and novel data to estimate the size of the ambient population in an urban area. Models of the daytime and night-time ambient populations are produced for the city of Leeds, West Yorkshire, UK. Interestingly, the presence of cash machines and hospitality venues were found to be statistically significant and were identified as the most important predictors of the ambient population. In contrast to the literature, the number of retail hubs, transport hubs, and the density of mobile phone cell towers were not found to have statistically significant relationships with footfall camera counts. Footfall camera data and the results of the predictive model were validated through comparison with manually collected pedestrian counts. The results of this validation process demonstrated that at five out of the six locations in Leeds city centre, the model produced expected estimates of the size of the ambient population. The results suggest that the approach of this study can be used as a tool to inform decision-making within local government and studies in which small area estimates of ambient populations are required.

Perancangan Boneka Edukasi Terinspirasi oleh Pencipta Boneka Si Unyil

2018 ◽  
Vol 1 ◽  
Author(s):  
Azhari Amri
Keyword(s):  
Design Process ◽  
Urban Culture ◽  
Urban Life ◽  
Rural Region ◽  
The Public ◽  
The Creation ◽  
The Difference ◽  
The City ◽  
Simple Materials

Film Unyil puppet comes not just part of the entertainment world that can be enjoyed by people from the side of the story, music, and dialogue. However, there is more value in it which is a manifestation of the creator that can be absorbed into the charge for the benefit of educating the children of Indonesia to the public at large. The Unyil puppet created by the father of Drs. Suyadi is one of the works that are now widely known by the whole people of Indonesia. The process of creating a puppet Unyil done with simple materials and formation of character especially adapted to the realities of the existing rural region. Through this process, this research leads to the design process is fundamentally educational puppet inspired by the creation of Si Unyil puppet. The difference is the inspiring character created in this study is on the characters that exist in urban life, especially the city of Jakarta. Thus the results of this study are the pattern of how to shape the design of products through the creation of the puppet with the approach of urban culture.

scholarly journals Evaluating the Impact of Floods on Housing Price Using a Spatial Matching Difference-In-Differences (SM-DID) Approach

2021 ◽  
Vol 13 (2) ◽  
pp. 804
Author(s):  
Jean Dubé ◽  
Maha AbdelHalim ◽  
Nicolas Devaux
Keyword(s):  
Housing Price ◽  
Hedonic Pricing ◽  
Environmental Amenities ◽  
Sale Price ◽  
Difference In Differences ◽  
Hedonic Pricing Model ◽  
The Difference ◽  
And Control ◽  
The Impact ◽  
The City

Many applications have relied on the hedonic pricing model (HPM) to measure the willingness-to-pay (WTP) for urban externalities and natural disasters. The classic HPM regresses housing price on a complete list of attributes/characteristics that include spatial or environmental amenities (or disamenities), such as floods, to retrieve the gradients of the market (marginal) WTP for such externalities. The aim of this paper is to propose an innovative methodological framework that extends the causal relations based on a spatial matching difference-in-differences (SM-DID) estimator, and which attempts to calculate the difference between sale price for similar goods within “treated” and “control” groups. To demonstrate the potential of the proposed spatial matching method, the researchers present an empirical investigation based on the case of a flood event recorded in the city of Laval (Québec, Canada) in 1998, using information on transactions occurring between 1995 and 2001. The research results show that the impact of flooding brings a negative premium on the housing price of about 20,000$ Canadian (CAN).

SPATIAL STRUCTURE TRANSFORMATION OF THE ULAN-UDE CITY WESTERN AND SOUTHERN SUBURBS

2021 ◽  
Vol 27 (5) ◽  
pp. 99-106
Author(s):  
А. Badmaev ◽  
◽  
В. Sharaldaev ◽  
Keyword(s):  
Spatial Structure ◽  
Road Transport ◽  
Residential Areas ◽  
City Center ◽  
Huge Number ◽  
Non Profit ◽  
Suburban Areas ◽  
Historical Factors ◽  
The Village ◽  
The City

The article analyzes the processes of suburbanization and transformation of the spatial structure of the city of Ulan-Ude. Modern trends in the growth of Western and historical factors of development, due to socio-economic and historical factors of development. In the 1990s-2000s, because of the decline in agriculture and, as a result, the lack of jobs, the rural population began to migrate massively to the Buryat Republic’s capital. However, the prices for houses and apartments in the city center were unbearable for many migrants, so the purchase of land plots and the construction of houses were affordable for many. The estrangement of agricultural lands and their inclusion in residential areas allowed the city of Ulan-Ude and suburban areas to somewhat expand the territory of settlements and create a huge number of GNPP (gardeners non-profit partnership) and DNPP (dacha non-profit partnership). The city and suburban areas were not ready for such a flow and were not able to provide the newly arrived migrants with social, road transport and communal infrastructure. As a result, the city was surrounded by a suburbia almost devoid of any infrastructure. There are some elements of false urbanization or squatter area, which is a type of urbanization in which the urban population rapid growth is not accompanied by a commensurate increase in urban functions. In recent years, the growth rate of suburban settlements has decreased, mainly due to mortgages, which have become more affordable for the population and the growth of multi-storey construction. In addition, the village is slowly depleting the human resources that feed the city and the suburbs. In other words, those who wanted to move to the city have already moved

Multi-Criteria Analysis and Consequential Lifecycle Assessment of Solid Waste Management

2021 ◽  
Vol 13 (3) ◽  
pp. 1-17
Author(s):  
Anna Bernstad Saraiva ◽  
João Namorado Clímaco ◽  
Rogerio de Aragão Bastos do Valle ◽  
Claudio Mahler
Keyword(s):  
Solid Waste Management ◽  
Landfill Gas ◽  
Global Perspective ◽  
Impact Categories ◽  
Lifecycle Assessment ◽  
Gas Source ◽  
Vip Analysis ◽  
The City ◽  
Evaluation Parameters

Based on a case study comparing different approaches for management of organic waste generated in the city of Rio de Janeiro, Brazil, this study proposes the combination of consequential lifecycle assessment (CLCA) and multicriteria decision analysis (MCDA). Compared approaches were landfilling with energy recovery from landfill gas, source segregation of organics for anaerobic digestion and use of digestate as fertilizer, and finally, post-sorting of organics and landfilling of residual bio-solids. Seven different impact categories were assessed in the CLCA. In addition, recovery of electricity and macro nutrients were included as additional impact categories. The use of VIP analysis facilitates the interpretation of results aggregating them under different conditions. Furthermore, approaches for ranking of considered impact categories could be carried out both for a local or a global perspective. This, and the possibility of easily including additional context derived evaluation parameters, clearly highlights the combination of CLCA and VIP analysis for decision support.

scholarly journals Małe dzieci w chrześcijańskiej epigrafice miasta Rzymu i w nauczaniu Jana Chryzostoma

Vox Patrum ◽  
2009 ◽  
Vol 53 ◽  
pp. 233-243
Author(s):  
Bożena Stawoska-Jundziłł
Keyword(s):  
The Other ◽  
High Status ◽  
Small Children ◽  
Person Following ◽  
John Chrysostom ◽  
The Family ◽  
The Difference ◽  
Christian Families ◽  
The City ◽  
Full Maturity

The paper presents the results of studies of epitaphs for children up to almost eight years of age from the city of Rome (3rd-4th c. – B. Stawoska-Jundziłł, Vixit cum parentibus. Children aged under seven in Christian families from Rome of 3rd-4th c., Bydgoszcz 2008) in comparison with the views of John Chrysostom on the upbringing of small children. The content of over 2000 children from Rome demonstrates a high status of even the youngest offspring in the Christian families from this city. The founders cared for their religious „endowment”, bestowed their love on them and tried to remember them as members of the family even if they had died after a few days or months. It was unquestionably believed that small children are immediately saved, go to God and commune with the saints. Thanks to this the family could hope for their support and prayers. Whereas, John Chrysostom only casually mentions small children and, what is more, ambivalently: on one hand presenting them on the basis of thorough observations of their behavior and looking after them and on the other hand as mindless creatures, a harbinger of va­luable person following the Stoics e.g. Seneca. As far as the most important for me question of the death of small children is concerned he takes a stand similar to that of the Romans. The children are really without sins (they did not commit them consciously) so God shall accept them only through the hardships of illness and death. Now they are asleep (unlike in the studied epitaphs) but they will rise from the dead and join their parents. Thus, the despair after their death is pointless; God decided the best for them. The difference lies in the fact that the founders of epitaphs more decidedly see the perfection of posthumous existence of even the smallest children who there reach their full maturity whereas John does not seem to be interested in this issue since he directs his teaching mostly to maturing and mature Christians in the earthly life and not in the beyond.

scholarly journals SMART SECURITY AND SAFETY INDEX MEASUREMENT: A CASE STUDY IN BANDUNG INDONESIA

2019 ◽  
Vol 7 (5) ◽  
pp. 141-149
Author(s):  
Indrawati ◽  
Tania Dayarani ◽  
Husni Amani
Keyword(s):  
Mixed Method ◽  
Smart City ◽  
Safety Index ◽  
Huge Number ◽  
Safety Level ◽  
Index Measurement ◽  
The World ◽  
Index Level ◽  
The City

Purpose: Nowadays, the development of technology is very fast and increasingly sophisticated; no doubt all the problems in a city can be solved quickly and well. Hence, facing a huge number of the urban population, the city must adopt the strategy of smart city so that the standard of life can be improved. Some of the cities in the world have applied the concept of smart city. One of the dimensions in smart city concept is smart security and safety. This study aims to know the indicators and index level of smart security and safety in Bandung city of Indonesia. This research explores the indicators and measures the index level of smart security and safety in Bandung.  Methodology: The research method characteristics applied in this study is the exploratory sequential mixed method. Main Findings: This study finds that there are 20 indicators to measure the index level of smart security and safety. The smart security and safety level of Bandung city is 72% which is considered that on average the measured indicators are already good enough and satisfied, but there are some indicators that should be improved. The variable that should be improved is variable of Awareness and Understanding which has score of 49%. Implications/Applications: It is suggested by this study that the socialization of smart security and safety program such as Panic Button Application, LAPOR! The website should be more effective through making socialization more targeted and real.

scholarly journals Fenomena Kesurupan Dalam Persepsi Psikolog Dan Peruqyah

2019 ◽  
Vol 6 (2) ◽  
pp. 108
Author(s):  
Syarifah Irkani
Keyword(s):  
Data Collection ◽  
Psychological Theory ◽  
Descriptive Study ◽  
Qualitative Approach ◽  
The Body ◽  
Psychological Problems ◽  
Islamic Studies ◽  
The Difference ◽  
The City ◽  
Scientific Competencies

This study aims to compare the perceptions of psychologists and who do people ruqyah to trans possession phenomena. This research is a comparative descriptive study using a qualitative approach. The subjects of this study amounted to 6 people consisting of 3 people who work as psychologists and 3 people who work as who do people ruqyah in the Pondok Sehat Al-Wahida. Data collection techniques used are interviews, observation, and documentation. Analysis of the data used with descriptive-comparative methods.Based on the results of the research can be concluded that there are differences and similarities of perceptions of psychologists and people who do ruqyah in viewing at the trance phenomenon in the city of Banjarmasin. The difference between the perception of psychologists and people who do ruqyah in viewing the phenomenon of trance is that psychologists view the phenomenon of possession using psychological theory, while peruqyah views the phenomenon of possession using Islamic studies so that treatment given by psychologists and people who do ruqyah has this difference in accordance with their scientific competencies. As for the similarities between the perception of psychologists and people who the ruqyah in viewing at  the phenomenon of possession can be caused by psychological problems but they also believe in Islamic studies can be caused by a genie that penetrates the body,

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