scholarly journals Disparities in the Evolution of the COVID-19 Pandemic between Spanish Provinces

2021 ◽  
Vol 18 (10) ◽  
pp. 5085
Author(s):  
Héctor López-Mendoza ◽  
Antonio Montañés ◽  
Franciso Javier Moliner-Lahoz
Keyword(s):  
High Mobility ◽  
South American ◽  
Economic Sectors ◽  
Ordered Logit Model ◽  
Convergence Clubs ◽  
Single Pattern ◽  
Divergent Behavior ◽  
Regional Authorities ◽  
Second Wave ◽  
Industrial Economic

Spain experienced a second wave of the COVID-19 pandemic in autumn 2020, which has been approached with different measures by regional authorities. We analyze the presence of convergence in the cumulative incidence for 14 days (CI14) in provinces and self-governing cities. The Phillips–Sul methodology was used to study the grouping of behavior between provinces, and an ordered logit model was estimated to understand the forces that drive creating the different convergence clubs. We reject the presence of a single pattern of behavior in the evolution of the CI14 across territories. Four statistically different convergence clubs and an additional province (Madrid) with divergent behavior are observed. Provinces with developed agricultural and industrial economic sectors, high mobility, and a high proportion of Central and South American immigrants had the highest level of CI14. We show that the transmission of the virus is not homogeneous in the Spanish national territory. Our results are helpful for identifying differences in determinants that could explain the pandemic’s evolution and for formulating hypotheses about the effectiveness of implemented measures.

scholarly journals Evaluation of national responses to COVID-19 pandemic based on Pareto optimality

2020 ◽  
Author(s):  
Marek Kochańczyk ◽  
Tomasz Lipniacki
Keyword(s):  
Pareto Optimality ◽  
Herd Immunity ◽  
High Mobility ◽  
Economic Loss ◽  
Economic Downturn ◽  
South American ◽  
Death Toll ◽  
High Death ◽  
Socio Economic Impact ◽  
Mobility Reduction

AbstractCountries worldwide have adopted various strategies to minimize the socio-economic impact of the ongoing COVID-19 pandemic. Stringency and efficacy of imposed measures vary due to diversity of organizational cultures and ingrained societal practices, but also universally reflect the standpoint from which protecting public health and saving economy are seen as contradictory objectives. We analyzed cumulative deaths per capita and cumulative mobility reduction related to the decrease of economic activity in terms of Pareto optimality to show that as long as epidemic suppression is the aim, the trade-off between the death toll and economic loss is illusory: high death toll correlates with deep lockdown and thus, very likely, with severe economic downturn. We explained this effect by analyzing national epidemic trajectories in the mobility reduction vs. reproduction number (R) plane. When the number of daily new infections is high, mobility reduction is the only way to bring R below 1, but when new infections become sporadic, the epidemic can be suppressed by efficient testing complemented by relatively mild restrictions. South American trajectories suggest that lifting mobility restrictions at R > 1 may ultimately lead to the “herd immunity scenario”, in which transient lockdown only adds economic costs to an inevitably high death toll.

Club convergence and drivers of house prices across Turkish cities

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Lokman Gunduz ◽  
Mustafa Kemal Yilmaz
Keyword(s):  
Housing Market ◽  
Logit Model ◽  
House Prices ◽  
Emerging Market ◽  
Ordered Logit ◽  
Data Set ◽  
Content Type ◽  
Ordered Logit Model ◽  
Convergence Clubs ◽  
Convergence Club

PurposeThis paper aims to examine the convergence pattern of residential house prices in a panel of 55 major cities in Turkey over the period between 2010 and 2018 and to investigate the determinants of convergence club formations.Design/methodology/approachThe authors applied the log t-test to identify the convergence clubs and estimated ordered logit model to determine the key drivers.FindingsThe results suggest that there are five convergence clubs and confirm the heterogeneity of the Turkish housing market. Istanbul, the commercial capital, and Mugla, an attractive tourist destination, are at the top of the housing market and followed by the cities located in the western part, particularly along the Aegean and Mediterranean coasts of Turkey. Moreover, the ordered logit model results point out that the differences in employment rate, climate, population density and having a metropolitan municipality play a significant role in determining convergence club membership.Practical implicationsLarge-scale policy measures aiming to increase employment opportunities in rural cities of central and eastern provinces and providing lower land prices and property taxes in the metropolitan cities of Turkey can help mitigate some of the divergence in the house prices across cities.Originality/valueThe novelty of this study lies in employing a new data set at the city level containing 55 cities in Turkey, which is by far the largest in terms of city coverage among emerging market economies to implement the log t-test. It also contributes to the literature on city-specific determinants of convergence club formation in the case of an emerging economy.

Intra-generational and Intergenerational Social Mobility: Evidence from Vietnam

2019 ◽  
Vol 55 (3) ◽  
pp. 370-397
Author(s):  
Cuong Viet Nguyen ◽  
Lam Tran Nguyen
Keyword(s):  
Social Mobility ◽  
Primary Education ◽  
Intergenerational Mobility ◽  
High Mobility ◽  
Labour Mobility ◽  
Economic Sectors ◽  
University Degree ◽  
Over Time ◽  
College Or University

This study examines intra-generational and intergenerational mobility of employment and income in Vietnam during the 2004–2014 period. It finds there was high mobility across occupations but less mobility across wage-job employment and economic sectors. Upward labour mobility increased over time because of the increase in skilled occupations. The intergenerational elasticity of earnings is estimated at around 0.36. Education plays an important role in increasing intra-generational as well as intergenerational mobility. The earning intergenerational elasticity for children with less than primary education is rather high, at 0.51, while this intergenerational elasticity for those with a college or university degree is much lower at 0.17.

scholarly journals Regional Election in Czech Republic 2020

2020 ◽  
Vol 17 (5) ◽  
pp. 31-37
Author(s):  
Mikhail Vedernikov ◽  
Keyword(s):  
Czech Republic ◽  
Democratic Party ◽  
Election Campaign ◽  
The Czech Republic ◽  
Political Preferences ◽  
Regional Associations ◽  
Regional Authorities ◽  
Expert Community ◽  
Regional Elections ◽  
Second Wave

On October 2-3, 2020, regional elections were held in the Czech Republic amid the second wave of the COVID-19 Coronavirus pandemic. Despite the traditional attitude to this election as secondary, its significance for the expert community was in the fact that it made possible to study political preferences of the population on the eve of the upcoming elections in 2021. Although the citizens of the Czech Republic preferred ANO movement, analysts noted the strengthening of the opposition forces – Pirate Party, the Civil Democratic Party and the STAN movement. The main feature of their participation in the last election campaign was their coalition with regional associations and movements, which made it possible to mobilize the population and claim more active participation in the work of regional authorities. Thus, scholars concluded that this approach could become the key to success in 2021. In turn, the ANO’s coalition partners tend to weaken their positions. Their fate in the future parliament was uncertain.

A TEM study of the effect of oxygen on nanocavity formation and precipitation in rapid - solidified Fe-16Ni-9Cr stainless steels

1994 ◽  
Vol 52 ◽  
pp. 700-701
Author(s):  
S. Wisutmethangoon ◽  
T. F. Kelly ◽  
J.E. Flinn
Keyword(s):  
Stainless Steels ◽  
High Mobility ◽  
Hot Extrusion ◽  
Extrusion Ratio ◽  
Gas Atomization ◽  
Cavity Formation ◽  
Nucleation Sites ◽  
Heat Treated ◽  
Different Types ◽  
Effect Of Oxygen

Vacancies are introduced into the crystal phase during quenching of rapid solidified materials. Cavity formation occurs because of the coalescence of the vacancies into a cluster. However, because of the high mobility of vacancies at high temperature, most of them will diffuse back into the liquid phase, and some will be lost to defects such as dislocations. Oxygen is known to stabilize cavities by decreasing the surface energy through a chemisorption process. These stabilized cavities, furthermore, act as effective nucleation sites for precipitates to form during aging. Four different types of powders with different oxygen contents were prepared by gas atomization processing. The atomized powders were then consolidated by hot extrusion at 900 °C with an extrusion ratio 10,5:1. After consolidation, specimens were heat treated at 1000 °C for 1 hr followed by water quenching. Finally, the specimens were aged at 600 °C for about 800 hrs. TEM samples were prepared from the gripends of tensile specimens of both unaged and aged alloys.

The need of electron microscopy in the study of domains and domain walls in ferroelectrics

1994 ◽  
Vol 52 ◽  
pp. 550-551
Author(s):  
Wenwu Cao
Keyword(s):  
Domain Wall ◽  
Domain Walls ◽  
High Mobility ◽  
Continuum Theory ◽  
Polarization Vector ◽  
Ferroelectric Materials ◽  
Dielectric Constants ◽  
Nonlocal Coupling ◽  
Cubic Symmetry ◽  
Gradient Energy

Domain structures play a key role in determining the physical properties of ferroelectric materials. The formation of these ferroelectric domains and domain walls are determined by the intrinsic nonlinearity and the nonlocal coupling of the polarization. Analogous to soliton excitations, domain walls can have high mobility when the domain wall energy is high. The domain wall can be describes by a continuum theory owning to the long range nature of the dipole-dipole interactions in ferroelectrics. The simplest form for the Landau energy is the so called ϕ model which can be used to describe a second order phase transition from a cubic prototype,where Pi (i =1, 2, 3) are the components of polarization vector, α's are the linear and nonlinear dielectric constants. In order to take into account the nonlocal coupling, a gradient energy should be included, for cubic symmetry the gradient energy is given by,

Motion Analysis of the Cervical Spine

2004 ◽  
Vol 9 (5) ◽  
pp. 1-11
Author(s):  
Patrick R. Luers
Keyword(s):  
Cervical Spine ◽  
Intervertebral Disk ◽  
Radiographic Evaluation ◽  
Ligamentous Injury ◽  
Pattern Of Injury ◽  
Motion Segment ◽  
Single Pattern ◽  
Compensatory Motion ◽  
Loss Of Motion ◽  
Flexion And Extension

Abstract The AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), Fifth Edition, defines a motion segment as “two adjacent vertebrae, the intervertebral disk, the apophyseal or facet joints, and ligamentous structures between the vertebrae.” The range of motion from segment to segment varies, and loss of motion segment integrity is defined as “an anteroposterior motion of one vertebra over another that is greater than 3.5 mm in the cervical spine, greater than 2.5 mm in the thoracic spine, and greater than 4.5 mm in the lumbar spine.” Multiple etiologies are associated with increased motion in the cervical spine; some are physiologic or compensatory and others are pathologic. The standard radiographic evaluation of instability and ligamentous injury in the cervical spine consists of lateral flexion and extension x-ray views, but no single pattern of injury is identified in whiplash injuries. Fluoroscopy or cineradiographic techniques may be more sensitive than other methods for evaluating subtle abnormal motion in the cervical spine. The increased motion thus detected then must be evaluated to determine whether it represents normal physiologic motion, normal compensatory motion, motion related to underlying degenerative disk and/or facet disease, or increased motion related to ligamentous injury. Imaging studies should be performed and interpreted as instructed in the AMA Guides.

Modeling Within-Person Variance in Reaction Time Data of Older Adults

GeroPsych ◽  
2011 ◽  
Vol 24 (4) ◽  
pp. 169-176 ◽  
Author(s):  
Philippe Rast ◽  
Daniel Zimprich
Keyword(s):  
Reaction Time ◽  
Cognitive Aging ◽  
Reaction Times ◽  
Reaction Time Task ◽  
Reaction Time Data ◽  
Scale Model ◽  
Time Data ◽  
Time Task ◽  
The Mean ◽  
Second Wave

In order to model within-person (WP) variance in a reaction time task, we applied a mixed location scale model using 335 participants from the second wave of the Zurich Longitudinal Study on Cognitive Aging. The age of the respondents and the performance in another reaction time task were used to explain individual differences in the WP variance. To account for larger variances due to slower reaction times, we also used the average of the predicted individual reaction time (RT) as a predictor for the WP variability. Here, the WP variability was a function of the mean. At the same time, older participants were more variable and those with better performance in another RT task were more consistent in their responses.

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