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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
  • Author(s):
    Isabel Cabezas
    Abstract:

    Submitted in partial fulfillment of the requirements for the course Eschatology in Art, this paper examines the ways in which the Christian eschatological imagination is expressed in Luca Signorelli’s Capella Nuova fresco cycle at the Cathedral of Orvieto. This cathedral exemplifies how architects and artists used structure and ornament to enhance Catholic teachings. My research, enhanced by a site visit to the cathedral, synthesizes Hans Balthasar’s theoretical ideas of vertical and …

  • Author(s):
    Jürgen Thanhofer-Pilisch, Alexander Lang, Michael Vierhauser, Rick Rabiser
    Abstract:

    Domain-specific languages (DSLs) are frequently used in software engineering. In contrast to general-purpose languages, DSLs are designed for a special purpose in a particular domain. Due to volatile user requirements and new technologies DSLs, similar to the software systems they describe or produce, are subject to continuous evolution. This work explores existing research on DSL evolution to summarize, structure and analyze this area of research, and to identify trends and open issues. We c…

  • Author(s):
    Michael Vierhauser, Sean Bayley, Jane Wyngaard, Jinghui Cheng, Wandi Xiong, Robyn Lutz, Joshua Huseman, Jane Cleland-Huang
    Abstract:

    The growing adoption of small unmanned aircraft systems (sUAS) for tasks such as eCommerce, aerial surveillance, and environmental monitoring introduces the need for new safety mechanisms in an increasingly cluttered airspace. Safety assurance cases (SAC) provide a state-of-the-art solution for reasoning about system and software safety in numerous safety-critical domains. We propose a novel approach based on the idea of interlocking safety cases. The sUAS infrastructure safety case (iSAC) sp…

  • Author(s):
    Jane Wyngaard, Samuel S.C. Rund, Gregory R. Madey, Michael Vierhauser, Jane Cleland-Huang
    Abstract:

    Remotely Piloted Aircraft Systems (RPAS) are an emerging application area for many industries including surveillance, agriculture monitoring, and vector-borne disease control. With drastically lower costs and increasing performance and autonomy, future application evolution will more than likely include the use of the RPAS swarms. Several largely successful experiments in recent years, using off the shelf small Unmanned Aircraft Systems (sUAS) have been conducted to address the long standing …

  • Author(s):
    Rick Rabiser, Sam Guinea, Michael Vierhauser, Luciano Baresi , Paul Grünbacher
    Abstract:

    The full behavior of complex software systems often only emerges during operation. They thus need to be monitored at run time to check that they adhere to their requirements. Diverse runtime monitoring approaches have been developed in various domains and for different purposes. Their sheer number and heterogeneity, however, make it hard to find the right approach for a specific application or purpose. The aim of our research therefore was to develop a comparison framework for runtime monitor…

  • Author(s):
    Joseph A Hagmann, Xiang Li, Sugata Chowdhury, Si-Ning Dong, Sergei Rouvimov, Sujitra J Pookpanratana, Kin Man Yu, Tatyana A Orlova, Trudy B Bolin, Carlo U Segre
    Abstract:

    We demonstrate that the introduction of an elemental beam of Mn during the molecular beam epitaxial growth of Bi2Se3 results in the formation of layers of Bi2MnSe4 that intersperse between layers of pure Bi2Se3. This study revises the assumption held by many who study magnetic topological insulators (TIs) that Mn incorporates randomly at Bi-substitutional sites during epitaxial growth of Mn:Bi2Se3. Here, we report the formation of thin film magnetic TI Bi2MnSe4 with stoichiometric composition…

    Date Published:
    2017
  • Author(s):
    Ian M. Sander, Matthew T. McGoldrick, My N. Helms, Aislinn Betts, Anthony van Avermaete, Elizabeth Owers, Evan Doney, Taimi Liepert, Glen Niebur, Douglas Liepert, W. Matthew Leevy
    Abstract:

    Advances in three-dimensional (3D) printing allow for digital files to be turned into a “printed” physical product. For example, complex anatomical models derived from clinical or pre-clinical X-ray computed tomography (CT) data of patients or research specimens can be constructed using various printable materials. Although 3D printing has the potential to advance learning, many academic programs have been slow to adopt its use in the classroom despite increased availability of the equipment …

    Date Published:
    2017
  • Author(s):
    Ryan K. Roeder, Tyler E. Curtis, Prakash D. Nallathamby, Lisa E. Irimata, Tracie L. McGinnity, Lisa E. Cole, Tracy Vargo-Gogola, Karen D. Cowden Dahl
    Abstract:

    Precision imaging is needed to realize precision medicine in cancer detection and treatment. Molecular imaging offers the ability to target and identify tumors, associated abnormalities, and specific cell populations with overexpressed receptors. Nuclear imaging and radionuclide probes provide high sensitivity but subject the patient to a high radiation dose and provide limited spatiotemporal information, requiring combined computed tomography (CT) for anatomic imaging. Therefore, nanoparticl…

    Date Published:
    2017