Perceptions of Usability and Usefulness in Digital Libraries

This paper provides an overview of a case study research that investigated the use of Digital Library (DL) resources in two undergraduate classes and explored faculty and students’ perceptions of educational digital libraries. This study found that students and faculty use academic DLs primarily for textual resources, but turn to the open Web for visual and multimedia resources. The study participants did not perceive academic libraries as a useful source of digital images and used search engines when searching for visual resources. The limited use of digital library resources for teaching and learning is associated with perceptions of usefulness and ease of use, especially if considered in a broader information landscape, in conjunction with other library information systems, and in the context of Web resources. The limited use of digital libraries is related to the following perceptions: 1) Library systems are not viewed as user-friendly, which in turn discourages potential users from trying DLs provided by academic libraries; 2) Academic libraries are perceived as places of primarily textual resources; perceptions of usefulness, especially in regard to relevance of content, coverage, and currency, seem to have a negative effect on user intention to use DLs, especially when searching for visual materials.

Digital Curation Program of the Digital Public Library of America (DPLA)

The Digital Public Library of America (DPLA) is a digital library that strives to serve the public through digital collections accumulated from a wide variety of partners. Our chosen topic for the DPLA exhibit project is Perspectives on the Vietnam War. The Vietnam War remains a controversial topic of national interest, making it a topic of depth and of many perspectives. Our goals with this exhibit were to gather different perspectives of the war through personal stories, the media, presidential administrations of the war, military personnel, and the general public, including famous figures. We strove to demonstrate the variety of perspectives on the Vietnam War through a variation of digital objects and content that will be engaging for users: both black and white and color photos, videos, and audio files. Furthermore, we wanted to ensure that our digital materials are of high quality, properly documented, and easy to search and find thus all of our objects are from DPLA and are from usable original sources. This poster will describe our processes for organizational, object selection, building our exhibit, attainment of our goals, and detailed steps of our overall operation. The poster will also include details about the minor issues and bumps that occurred while reaching our final product as well as the team members’ perspectives on the project as a whole including: problems, words to for the wise, and triumphs.

Novel Photochemical Methodologies For Diversity Oriented Synthesis And Screening Of Combinatorial Libraries

The main goal of this project was to develop an efficient methodology allowing rapid access to structurally diverse scaffolds decorated with various functional groups. Initially, we discovered and subsequently developed an experimentally straightforward, high-yielding photoinduced conversion of readily accessible diverse starting materials into polycyclic aldehydes and their (hemi)acetals decorated by various pendants. The two step sequence, involving the Diels-Alder addition of heterocyclic chalcones and other benzoyl ethylenes to a variety of dienes, followed by the Paternò-Büchi reaction, was described as an alkene-carbonyl oxametathesis. This methodology offers a rapid increase in molecular complexity and diversity of the target scaffolds. To develop this novel methodology further and explore its generality, we directed our attention to the Diels-Alder adducts based on various chromones. We discovered that the Diels-Alder adducts of chromones are capable of photoinduced alkene-arene [2+2] cycloaddition producing different dienes, which can either dimerize or be introduced into a double-tandem [4π+2π]·[2π+2π]·[4π+2π]·[2π+2π] synthetic sequence, followed by an acid-catalyzed oxametathesis, leading to a rapid expansion of molecular complexity over a few experimentally simple steps. In view of the fact that oxametathesis previously was primarily observed in aromatic oxetanes, we decided to prepare model aliphatic oxetanes with a conformationally unconstrained or "flexible" methyl group based on the Diels-Alder adducts of cyclohexadiene or cyclopentadiene with methyl vinyl ketone. Upon addition of an acid, the expected oxametathesis occurred with results similar to those observed in the aromatic series proving the generality of this approach. Also we synthesized polycyclic oxetanes resulting from the Diels-Alder adducts of cyclic ketones. This not only gave us access to remarkably strained oxetane systems, but also the mechanism for their protolytic ring opening provided a great deal of insight to how the strain affects the reactivity. Additionally, we discovered that although the model Hetero-Diels-Alder adducts did not undergo [2+2] cycloaddition, both exo- and endo-Sulfa-Diels-Alder products, nonetheless, were photochemically active and various products with defined stereochemistry could be produced upon photolysis. In conclusion, we have developed an approach to the encoding and screening of solution phase libraries based on the photorelease of externally sensitized photolabile tags. The encoding tags can be released into solution only when a binding event occurs between the ligand and the receptor, equipped with an electron transfer sensitizer. The released tags are analyzed in solution revealing the identity of the lead ligand or narrowing the range of potential leads.

Educating a New Cadre of Experts Specializing in Digital Collections and Digital Curation: Experiential Learning in Digital Library Curriculum

Integration of experiential learning into the library and information science (LIS) courses has been a theme in LIS education, but the topic deserves renewed attention with an increasing demand for professionals in the digital library field and in light of the new initiative announced by the Library of Congress (LC) and the Institution of Museum and Library Services (IMLS) for national residency program in digital curation. The balance between theory and practice in digital library curricula, the challenges of incorporating practical projects into LIS coursework, and the current practice of teaching with hands on activities represent the primary areas of this panel discussion.

Shared Print Analysis Tool at the Colorado Alliance of Research Libraries

The Colorado Alliance of Research Libraries has launched the Alliance Shared Print Trust and is in the process of developing a shared print analysis tool. The system allows libraries to compare themselves with other libraries that have added their MARC records so that they can easily and quickly determine what records are unique or held in common with other libraries. The comparison system is built on open source tools and has been embedded in the Gold Rush framework. The author provides a brief overview of other shared print analysis tools.

EAST by Northeast

The Eastern Academic Scholars’ Trust (EAST) is a shared print initiative involving 48 libraries across the Northeast. Initiated in 2012 with a planning grant from the Andrew W. Mellon Foundation, EAST addresses directly the growing need for academic libraries to ensure that monographs and journals of scholarly value are not inadvertently discarded as they undertake weeding and deselection programs to free up space for other library services. EAST is currently completing a large-scale analysis of collections across 40 of the participating libraries. This analysis will provide insight into both uniqueness and overlap across the libraries’ holdings and will result in agreements by the libraries to retain circulating monographs in their local collections for an agreed upon time period and to make those materials available to researchers and scholars from other EAST libraries. In parallel to this collection analysis, EAST is implementing validation sampling across the libraries to better understand volume availability and condition and the role they may plan in retention decisions. The project team has developed an innovative sampling methodology and tools to support the study. As the largest shared print initiative to date, this project will secure a substantial portion of the scholarly record that is held in the Northeast and positions EAST as an important component of the growing network of shared print initiatives nationally.

The Merida Initiative: A Flawed Agreement

The Mexican government and people are engaged in a war for the survival of their nation. Drug cartels are creating a situation of terror on the streets of the nation in their attempts to retain control of trafficking drugs into the United States. The Merida Initiative is a flawed agreement as it only addresses the issue of violence perpetrated by drug cartels. The issues of human rights protection, education, and economic stability within Mexico must be addressed in order to not only improve the situation but also eradicate the power and allure of the cartels.