Effects of Racial Segregation on Economic Productivity in U.S. Cities

no code implementations • 6 Dec 2022 • Andrew J. Stier, Sina Sajjadi, Luıs M. A. Bettencourt, Fariba Karimi, Marc G. Berman

Our findings provide the means for the formal incorporation of general homophilic and heterophobic effects into theories of modern urban science and suggest that racial segregation is increasingly and adversely impacting the economic performance and connectivity of urban societies in the U. S.

Social distancing in pedestrian dynamics and its effect on disease spreading

1 code implementation • 24 Oct 2020 • Sina Sajjadi, Alireza Hashemi, Fakhteh Ghanbarnejad

For the mobility dynamics, we design an agent based model consisting of pedestrian dynamics with a novel type of force to resemble social distancing in crowded sites.

Physics and Society Populations and Evolution

Impact of temporal correlations on high risk outbreaks of independent and cooperative SIR dynamics

1 code implementation • 3 Mar 2020 • Sina Sajjadi, Mohammad Reza Ejtehadi, Fakhteh Ghanbarnejad

While randomization of the daily pattern correlations has no significant effect on the size of outbreak in either of the coinfection or independent spreading cases.

Populations and Evolution Physics and Society