Search Results for author: Rajesh Singh

Found 11 papers, 10 papers with code

Efficient Bayesian inference of fully stochastic epidemiological models with applications to COVID-19

2 code implementations21 Oct 2020 Yuting I. Li, Günther Turk, Paul B. Rohrbach, Patrick Pietzonka, Julian Kappler, Rajesh Singh, Jakub Dolezal, Timothy Ekeh, Lukas Kikuchi, Joseph D. Peterson, Hideki Kobayashi, Michael E. Cates, R. Adhikari, Robert L. Jack

Epidemiological forecasts are beset by uncertainties about the underlying epidemiological processes, and the surveillance process through which data are acquired.

Methodology Populations and Evolution

Inference, prediction and optimization of non-pharmaceutical interventions using compartment models: the PyRoss library

1 code implementation19 May 2020 R. Adhikari, Austen Bolitho, Fernando Caballero, Michael E. Cates, Jakub Dolezal, Timothy Ekeh, Jules Guioth, Robert L. Jack, Julian Kappler, Lukas Kikuchi, Hideki Kobayashi, Yuting I. Li, Joseph D. Peterson, Patrick Pietzonka, Benjamin Remez, Paul B. Rohrbach, Rajesh Singh, Günther Turk

The PyRoss library enables fitting to epidemiological data, as available, using Bayesian parameter inference, so that competing models can be weighed by their evidence.

Populations and Evolution Physics and Society Quantitative Methods

Self-propulsion of active droplets without liquid-crystalline order

3 code implementations13 Apr 2020 Rajesh Singh, Elsen Tjhung, Michael E. Cates

The swimming of cells, far from any boundary, can arise in the absence of long-range liquid-crystalline order within the cytoplasm, but simple models of this effect are lacking.

Soft Condensed Matter Statistical Mechanics Biological Physics Fluid Dynamics

Age-structured impact of social distancing on the COVID-19 epidemic in India

2 code implementations26 Mar 2020 Rajesh Singh, R. Adhikari

The outbreak of the novel coronavirus, COVID-19, has been declared a pandemic by the WHO.

Imputation

Controlled Optofluidic Crystallization of Colloids Tethered at Interfaces

1 code implementation9 Mar 2020 Alessio Caciagli, Rajesh Singh, Darshana Joshi, R. Adhikari, Erika Eiser

We report experiments that show rapid crystallization of colloids tethered to an oil-water interface in response to laser illumination.

Soft Condensed Matter Statistical Mechanics

Hydrodynamic and phoretic interactions of active particles in Python

1 code implementation2 Oct 2019 Rajesh Singh, R. Adhikari

We present a modular Python library for computing many-body hydrodynamic and phoretic interactions between spherical active particles in suspension, when these are given by solutions of the Stokes and Laplace equations.

Soft Condensed Matter Statistical Mechanics Computational Physics Fluid Dynamics

Hydrodynamically interrupted droplet growth in scalar active matter

4 code implementations10 Jul 2019 Rajesh Singh, M. E. Cates

Suspensions of spherical active particles often show microphase separation.

Soft Condensed Matter Statistical Mechanics

Competing chemical and hydrodynamic interactions in autophoretic colloidal suspensions

1 code implementation12 Nov 2018 Rajesh Singh, R. Adhikari, M. E. Cates

At the surfaces of autophoretic colloids, slip velocities arise from local chemical gradients that are many-body functions of particle configuration and activity.

Soft Condensed Matter Statistical Mechanics

Flow-induced phase separation of active particles is controlled by boundary conditions

1 code implementation27 Oct 2017 Shashi Thutupalli, Delphine Geyer, Rajesh Singh, Ronojoy Adhikari, Howard Stone

The results of numerical simulations of motion under the action of the active forces and torques are in excellent agreement with experiments.

Soft Condensed Matter

Universal hydrodynamic mechanisms for crystallization in active colloidal suspensions

1 code implementation20 Oct 2016 Rajesh Singh, R. Adhikari

Here we show that slow viscous flow produced by polar or apolar active colloids near plane walls mediates attractive hydrodynamic forces that drive crystallization.

Soft Condensed Matter

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