170,939 research outputs found

    Data for: Separate drivers for microbial C mineralization and physical protection of C

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    Datasets related to Cates et al., Separate drivers for microbial C mineralization and physical protection of

    Cates, Gabrilla C.

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    Register states internment was in Sanford, Florida. James J. Cates - husband.https://stars.library.ucf.edu/cfm-ch-memoranda-1925/1018/thumbnail.jp

    Cates Premium Condiments, C

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    An arrangement of Cates Premium jars of sweet salad cucumbers, hamburger dill chips, sweet cucumber chips, and Prawdziwy polski wyros arranged within a barbeque grill. Greenery and buildings are visible in the background.https://digitalcommons.usf.edu/gandy_commercial/3619/thumbnail.jp

    Behind The Scenes of Cates Premium Photoshoot, C

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    Behind the scenes of Cates Premium photoshoot. A photographer is on a ladder and looking down to capture a group of people eating and enjoying Cates products on an outdoor patio.https://digitalcommons.usf.edu/gandy_commercial/3620/thumbnail.jp

    Virginia Busby, Evergreen resident, c.1979

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    In this interview that was conducted sometime in the late-1970s, Pat Faudry and Bena Cates interview Mrs. Virigina Busby. �Speaking of both the past and present, Mrs. Busby describes the Evergreen Community and Memphis in general

    Data for: Separate drivers for microbial C mineralization and physical protection of C

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    Datasets related to Cates et al., Separate drivers for microbial C mineralization and physical protection of CTHIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV

    Cates Premium Hamburger Dill Chips and Accompanying Dishes, C

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    Staged spread of a hamburger, chips, beans, jar of Cates Premium hamburger dill chips, salt and pepper shakers, and metal tray of condiments. The food rests on a whicker table outdoors.https://digitalcommons.usf.edu/gandy_commercial/3624/thumbnail.jp

    Utah Copper Company Officers--Mining Association--Moffat, D. D., Daniel C. Jackling, Louis Cates [3rd, 4th, 5th from left to right]

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    Group portrait of Utah Copper Company officers standing in formalwear. David D. Moffat, Daniel C. Jackling, Louis Cates are third, fourth and fifth from left

    Active Ising Models of Flocking: A Field-Theoretic Approach

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    Using an approach based on Doi-Peliti field theory, we study several different Active Ising Models (AIMs), in each of which collective motion (flocking) of self-propelled particles arises from the spontaneous breaking of a discrete symmetry. We test the predictive power of our field theories by deriving the hydrodynamic equations for the different microscopic choices of aligning processes that define our various models. At deterministic level, the resulting equations largely confirm known results, but our approach has the advantage of allowing systematic generalization to include noise terms. Study of the resulting hydrodynamics allows us to confirm that the various AIMs share the same phenomenology of a first order transition from isotropic to flocked states whenever the self propulsion speed is nonzero, with an important exception for the case where particles align only pairwise locally. Remarkably, this variant fails entirely to give flocking -- an outcome that was foreseen in previous work, but is confirmed here and explained in terms of the scalings of various terms in the hydrodynamic limit. Finally, we discuss our AIMs in the limit of zero self-propulsion where the ordering transition is continuous. In this limit, each model is still out of equilibrium because the dynamical rules continue to break detailed balance, yet it has been argued that an equilibrium universality class (Model C) prevails. We study field-theoretically the connection between our AIMs and Model C, arguing that these particular models (though not AIMs in general) lie outside the Model C class. We link this to the fact that in our AIMs without self propulsion, detailed balance is not merely still broken, but replaced by a different dynamical symmetry in which the dynamics of the particle density is independent of the spin state.Comment: 16+8 page
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