Conceptions of Emulation, Migration, and Related Concepts in Digital Preservation Literature

This study uses conceptual content analysis to examine and compare definitions of "emulation," "migration," and other key terms in the digital preservation literature. Eight terms were coded and analyzed including "digital object," "authenticity," and "significant properties." Particular attention is paid to definitions of emulation and migration, and arguments for and against each process are reviewed. Within the library science literature there is a significant consensus about the definitions of many of these key terms. However, there still exists some ambiguity and disagreement about how these fundamental concepts should be understood. Those undertaking digital projects must be deliberate about defining these foundational terms before they begin work

Using Gimlet to Improve Service at the Library

In 2011, Johnson County Community College’s Billington Library first piloted and then implemented a low-cost online reference statistics tool called Gimlet. The system replaced an outmoded and inaccurate pen-and-paper statistics system. This paper details the struggles and advantages of this change. Implementation and training programs are discussed, as well as strategies for generating staff buy-in. Both the expected and unexpected advantages of a Gimlet based online system are explored, and future directions for the system are described. Libraries looking for a very low cost, easy to implement electronic statistics solution should consider Gimlet. The experience of JCCC’s Billington Library can serve as an effective road map

Copyright in the Age of Anything Goes

This panel will offer a scenario based approach to assist faculty and institutions in understanding copyright beginning with a brief overview of the origins and goals of the academic Fair Use doctrine with a focus on institutional responsibility for developing and applying protocols and procedures that address the doctrine. Topics covered by the panel will include: issues surrounding the recent copyright case against Georgia State University (including the impact of the court’s decision and how your institution can avoid the related pitfalls); an exploration of zero risk, bright-line copyright solutions; how to build a campus culture of compliance; and managing your college’s copyrights as an IP (intellectual property) creator. Sources and references related to institutional best practices will be provided

Advanced Potential Energy Surfaces for Molecular Simulation.

Advanced potential energy surfaces are defined as theoretical models that explicitly include many-body effects that transcend the standard fixed-charge, pairwise-additive paradigm typically used in molecular simulation. However, several factors relating to their software implementation have precluded their widespread use in condensed-phase simulations: the computational cost of the theoretical models, a paucity of approximate models and algorithmic improvements that can ameliorate their cost, underdeveloped interfaces and limited dissemination in computational code bases that are widely used in the computational chemistry community, and software implementations that have not kept pace with modern high-performance computing (HPC) architectures, such as multicore CPUs and modern graphics processing units (GPUs). In this Feature Article we review recent progress made in these areas, including well-defined polarization approximations and new multipole electrostatic formulations, novel methods for solving the mutual polarization equations and increasing the MD time step, combining linear-scaling electronic structure methods with new QM/MM methods that account for mutual polarization between the two regions, and the greatly improved software deployment of these models and methods onto GPU and CPU hardware platforms. We have now approached an era where multipole-based polarizable force fields can be routinely used to obtain computational results comparable to state-of-the-art density functional theory while reaching sampling statistics that are acceptable when compared to that obtained from simpler fixed partial charge force fields