Search Results - "Arratia, Paulo E"

Mechanical and microscopic properties of the reversible plastic regime in a 2D jammed material by Keim, Nathan C, Arratia, Paulo E

“…At the microscopic level, plastic flow of a jammed, disordered material consists of a series of particle rearrangements that cannot be reversed by subsequent…”
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The propagation of active-passive interfaces in bacterial swarms by Patteson, Alison E., Gopinath, Arvind, Arratia, Paulo E.

“…Propagating interfaces are ubiquitous in nature, underlying instabilities and pattern formation in biology and material science. Physical principles governing…”
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Flow Resistance and Structures in Viscoelastic Channel Flows at Low Re by Qin, Boyang, Salipante, Paul F, Hudson, Steven D, Arratia, Paulo E

“…The flow of viscoelastic fluids in channels and pipes remains poorly understood, particularly at low Reynolds numbers. Here, we investigate the flow of…”
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Aerodynamics-assisted, efficient and scalable kirigami fog collectors by Li, Jing, Ran, Ranjiangshang, Wang, Haihuan, Wang, Yuchen, Chen, You, Niu, Shichao, Arratia, Paulo E., Yang, Shu

“…To address the global water shortage crisis, one of the promising solutions is to collect freshwater from the environmental resources such as fog. However, the…”
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The perpetual fragility of creeping hillslopes by Deshpande, Nakul S., Furbish, David J., Arratia, Paulo E., Jerolmack, Douglas J.

“…Soil creeps imperceptibly but relentlessly downhill, shaping landscapes and the human and ecological communities that live within them. What causes this…”
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Author Correction: Origins of complexity in the rheology of Soft Earth suspensions by Pradeep, Shravan, Arratia, Paulo E., Jerolmack, Douglas J.

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Origins of complexity in the rheology of Soft Earth suspensions by Pradeep, Shravan, Arratia, Paulo E., Jerolmack, Douglas J.

“…When wet soil becomes fully saturated by intense rainfall, or is shaken by an earthquake, it may fluidize catastrophically. Sand-rich slurries are treated as…”
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The (In)sensitivity of Granular Creep to Materials and Boundaries by Deshpande, Nakul S., Arratia, Paulo E., Jerolmack, Douglas J.

“…Soils around the planet creep, despite wide variations in particle properties and environments. This sub‐yield “flow” of soil interacts with a variety of…”
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Formation of stable aggregates by fluid-assembled solid bridges by Seiphoori, Ali, Ma, Xiao-guang, Arratia, Paulo E., Jerolmack, Douglas J.

“…When a colloidal suspension is dried, capillary pressure may overwhelm repulsive electrostatic forces, assembling aggregates that are out of thermal…”
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To biofilm or not to biofilm by Pradeep, Shravan, Arratia, Paulo E

“…A new model helps to predict under which conditions a species of bacteria will switch to a static lifestyle…”
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Flagellar swimming in viscoelastic fluids: role of fluid elastic stress revealed by simulations based on experimental data by Li, Chuanbin, Qin, Boyang, Gopinath, Arvind, Arratia, Paulo E., Thomases, Becca, Guy, Robert D.

“…Many important biological functions depend on microorganisms' ability to move in viscoelastic fluids such as mucus and wet soil. The effects of fluid…”
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A high-shear, low Reynolds number microfluidic rheometer by Pan, Lichao, Arratia, Paulo E.

“…We present a microfluidic rheometer that uses in situ pressure sensors to measure the viscosity of liquids at low Reynolds number. Viscosity is measured in a…”
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Model-independent phenotyping of C. elegans locomotion using scale-invariant feature transform by Koren, Yelena, Sznitman, Raphael, Arratia, Paulo E, Carls, Christopher, Krajacic, Predrag, Brown, André E X, Sznitman, Josué

“…To uncover the genetic basis of behavioral traits in the model organism C. elegans, a common strategy is to study locomotion defects in mutants. Despite…”
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Multi-environment model estimation for motility analysis of Caenorhabditis elegans by Sznitman, Raphael, Gupta, Manaswi, Hager, Gregory D, Arratia, Paulo E, Sznitman, Josué

“…The nematode Caenorhabditis elegans is a well-known model organism used to investigate fundamental questions in biology. Motility assays of this small…”
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Sticking Together: Injectable Granular Hydrogels with Increased Functionality via Dynamic Covalent Inter‐Particle Crosslinking by Muir, Victoria G., Qazi, Taimoor H., Weintraub, Shoshana, Torres Maldonado, Bryan O., Arratia, Paulo E., Burdick, Jason A.

“…Granular hydrogels are an exciting class of microporous and injectable biomaterials that are being explored for many biomedical applications, including…”
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Particle diffusion in active fluids is non-monotonic in size by Patteson, Alison E, Gopinath, Arvind, Purohit, Prashant K, Arratia, Paulo E

“…We experimentally investigate the effect of particle size on the motion of passive polystyrene spheres in suspensions of Escherichia coli. Using particles…”
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Active Reversible Swimming of Magnetically Assembled “Microscallops” in Non-Newtonian Fluids by Han, Koohee, Shields, Charles Wyatt, Bharti, Bhuvnesh, Arratia, Paulo E, Velev, Orlin D

“…Miniaturized devices capable of active swimming at low Reynolds numbers are of fundamental importance and possess potential biomedical utility. The design of…”
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Effect of fluid elasticity on the emergence of oscillations in an active elastic filament by Link, Kathryn G, Guy, Robert D, Thomases, Becca, Arratia, Paulo E

“…Many microorganisms propel themselves through complex media by deforming their flagella. The beat is thought to emerge from interactions between forces of the…”
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Bacteria hinder large-scale transport and enhance small-scale mixing in time-periodic flows by Ran, Ranjiangshang, Brosseau, Quentin, Blackwell, Brendan C., Qin, Boyang, Winter, Rebecca L., Arratia, Paulo E.

“…Understanding mixing and transport of passive scalars in active fluids is important to many natural (e.g., algal blooms) and industrial (e.g., biofuel, vaccine…”
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Quenching active swarms: effects of light exposure on collective motility in swarming Serratia marcescens by Yang, Junyi, Arratia, Paulo E, Patteson, Alison E, Gopinath, Arvind

“…Swarming colonies of the light-responsive bacteria Serratia marcescens grown on agar exhibit robust fluctuating large-scale flows that include arrayed…”
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