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  • Author(s):
    Kyle Sweeney, Douglas Thain
    Abstract:

    Scientists using workflows often have access to both High Performance Computing and High-Throughput Computing sites, but HPC sites’ architecture is less conducive to HTC paradigms. The choices of middleware and site can have drastic performance differences on different workflows. To explore these differences, we created tools to expand Makeflow and Work Queue’s capabilities. We then performed four speed of light tests, testing job dispatch rate, data delivery from the master to worker…

  • Author(s):
    Stewart Clem
    Abstract:

    In recent scholarship, moral theologians and readers of Thomas Aquinas have shown increasing sensitivity to the role of the passions in the moral life. Yet these accounts have paid inadequate attention to Thomas’s writings on Christ’s passions as a source of moral reflection. As I argue in this essay, Thomas’s writings on Christ’s human affectivity should not be limited to the concerns of Christology; rather, they should be integrated into a fuller account of the human passions. One upshot of…

    Date Published:
    2018-07
  • Author(s):
    Stewart Clem
    Abstract:

    Philosopher Harry Frankfurt has famously coined “bullshit” as a technical term— it refers not to outright lying but rather to a casual indifference to truth. Disregard for truth is accepted and even expected in many contexts, yet it creates conditions for gross injustice and dehumanization. I offer an account of widespread cultural indifference to truth as structural sin, a condition I call “truth indifference.” Drawing on Thomas Aquinas’s understanding of the virtue of truth (veracitas), I m…

    Date Published:
    2017-12
  • Author(s):
    Stewart Clem
    Abstract:

    In this article, I argue that Immanuel Kant fails to provide a satisfactory account of ‘moral debt’ in Religion within the Boundaries of Mere Reason. More precisely, he fails to answer the question of why we should assume that a debt exists in the first place. In light of recent scholarship on this area of his thought, I sketch some possible readings of Kant on the nature of moral transformation that suggest how he might account for this debt. I then argue that these accounts fail to justify …

    Date Published:
    2018-03
  • Creator(s):
    Peter Ivie, Douglas Thain
    Description:

    Welcome to the preserved archive of workflows in the paper submitted to Concurrency & Computation: Practice & Experience entitled “Using PRUNE to reproducibly manage the data requirements in computational science.”

    Date Created:
    2018-03-13
  • Creator(s):
    Margaret Regan, Jonathan Hauenstein
    Description:

    A common computational problem is to compute topological information about a real surface defined by a system of polynomial equations. Our software, called polyTop, leverages numerical algebraic geometry computations from Bertini and Bertini_real with topological computations in javaPlex to compute the Euler characteristic, genus, Betti numbers, and generators of the fundamental group of a real surface. Several examples are used to demonstrate this new software.

    Date Created:
    2018-03-02
  • Author(s):
    Tianze Peng, David Richter
    Abstract:

    Sea-spray droplets ejected into the air-sea boundary layer take part in a series of complex transport processes. To model the air-sea exchange of heat under high-wind conditions, it is important yet challenging to understand influences of evaporative droplets in the atmospheric boundary layer. We implement a high-resolution Eulerian-Lagrangian algorithm with varied droplets laden in a turbulent open-channel flow to reveal the dynamic and thermodynamic characteristics of droplets. Our past num…

    Date Created:
    2017-12-14
    Resource Type
    Presentation
  • Creator(s):
    Margaret Regan, Jonathan Hauenstein
    Description:

    Three key aspects of applying homotopy continuation to parameterized systems of polynomial equations are investigated. First, for parameterized systems which are homogenized with solutions in projective space, we investigate options for selecting the affine patch where computations are performed. Second, for parameterized systems which are overdetermined, we investigate options for randomizing the system for improving the numerically stability of the computations. Finally, since one is typica…

    Date Created:
    2017-07-06
  • Creator(s):
    GENEVIEVE Vigil
    Description:

    Matlab code that computes the effective point spread functions (EPSF) that results from exciting a two level fluorescence system with modulated excitation in saturation. The model is based on solving the rate equation for the two level system accounting for two photon absorption, stimulated and spontaneous emission. Each PSF is solved for every time pulse and point in 3 dimensional space in a series of loops over sinusoidally modulated excitation signals.

    Date Created:
    2017-05-09
  • Creator(s):
    Tianze Peng, David Richter
    Description:

    This spreadsheet contains data of figures in “Influence of Evaporating Droplets in the Turbulent Marine Atmospheric Boundary Layer” published in Boundary Layer Meteorology by Springer.

    Title Influence of Evaporating Droplets in the Turbulent Marine Atmospheric Boundary Layer
    Journal Boundary-Layer Meteorology, (online first), 1-22 DOI 10.1007/s10546-017-0285-7

    Date Created:
    2017-04-26
  • Description(s):
    Video recording of the College of Arts and Letters Colloquium from October 28, 2011.
    Performer(s):
    Stephen Armet
  • Description(s):
    Video recording of a classroom lecture from the Fall 2011 Introduction to Sociology course at Indiana University, South Bend.
    Performer(s):
    Stephen Armet