Using DSpace for Publishing Electronic Theses and Dissertations

The IUScholarWorks Repository is a DSpace-based institutional repository for the dissemination and preservation of Indiana University's scholarly output. Some time ago, our team made a decision to incorporate electronic theses and dissertations (ETD's) into our DSpace repository, and this created several technical challenges for us. Getting ETD's into DSpace is a challenge that a number of institutions have tackled recently, and several innovative solutions have been found, such as Vireo, the ETD submission management tool from the Texas Digital Library. However, we were faced with a number of requirements in our ETD workflow that had not yet been encountered by other institutions, and required some interesting solutions. In this proposal, we will provide an outline for a presentation that will discuss these challenges, and the solutions that were envisioned. We will also provide an update on our current progress towards implementing our plans, and discuss the future work that is left to be done

Searching Digital Content via SRU

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Using DSpace for Publishing Electronic Theses and Dissertations

The IUScholarWorks Repository is a DSpace-based institutional repository for the dissemination and preservation of Indiana University's scholarly output. Some time ago, our team made a decision to incorporate electronic theses and dissertations (ETD's) into our DSpace repository, and this created several technical challenges for us. Getting ETD's into DSpace is a challenge that a number of institutions have tackled recently, and several innovative solutions have been found, such as Vireo, the ETD submission management tool from the Texas Digital Library. However, we were faced with a number of requirements in our ETD workflow that had not yet been encountered by other institutions, and required some interesting solutions. In this proposal, we will provide an outline for a presentation that will discuss these challenges, and the solutions that were envisioned. We will also provide an update on our current progress towards implementing our plans, and discuss the future work that is left to be done

Streamlining the Electronic Text Workflow

Digital libraries have a long history of supporting electronic text projects usually following the Text Encoding Initiative Guidelines for Electronic Text Encoding and Interchange. For those of us grappling with either legacy encoded texts, ongoing encoding projects or more likely a combination of both, we are always attempting to improve our e-text workflow in ways that cultivate, promote and support all levels of encoded texts from mass digitization initiatives to scholarly encoding. As part of this presentation, we will: review a range of encoding projects supported by the Digital Library Program; discuss the tension between out of box and boutique e-text projects; and explore strategies and frameworks that will help us define a streamlined e-text service model capable of supporting the myriad of textual markup use cases and levels of encoding that we commonly encounter in libraries. Three recent e-text projects will showcase new approaches we have taken to address these issues: Victorian Women Writers Project, The Brevier Legislative Reports, and Indiana Authors and Their Books. This is a work in progress, but we are in search for that balanced model in which we are able to accommodate production-level and research projects equally well, not at the expense of the other, and with an eye toward modular, reusable development and deployment of e-text projects. To that end, we are interested in ideas you may have, so please join us

“Contentless” Digital Collections

Generally, when we think of a digital collection or repository, we think of digital images, ebooks, audio and video files. But some important digital collections, such a bibliographies, don’t have content per se but consist of metadata describing a physical object such as a book, a digital object such as an audio recording or an event such as an opera performance. Not surprisingly, this kind of “contentless” digital object is dependent on metadata to describe it. And while we have standards for bibliographic entries in books and articles, we need more complex metadata for digital bibliographic entries. For the past several months, the Library Technology Software Development group has been working on exactly how to represent these contentless digital objects in our Fedora digital repository using the Hydra based software development environment. Using The Televised Opera and Musical Comedy Database as a sample, we will discuss the work we have done to create a general bibliographic tool for the Fedora Digital Repository

Implementing a Data Publishing Service via DSpace

4th International Conference on Open RepositoriesThis presentation was part of the session : DSpace User Group PresentationsDate: 2009-05-20 01:30 PM – 03:00 PMThe Indiana University Libraries and Digital Library Program offer a set of online scholarly communication services to IU scholars under the brand IUScholarWorks. Currently, these services include IUScholarWorks Repository, a DSpace-based institutional repository for dissemination and preservation of articles, papers, technical reports, and other scholarly products, and IUScholarWorks Journals, an Open Journal System-based online journal hosting service. To complement these two existing services, the Libraries and Digital Library Program are collaborating with the Research Technologies division of IU's central IT organization to implement a research data publishing service as a new feature of IUScholarWorks Repository. The idea of this service is to allow researchers to easily publish their datasets for online access at a stable web address, reference these datasets from publications, and assume at least bit-level preservation of the data. The intent is to develop a service that is generic enough to be used for everything from sensor data to statistical data to ethnographic field video. This service will leverage IU's existing Massive Data Storage System, which is an existing large scale centrally-funded distributed storage service offered by Research Technologies to IU faculty, staff, and graduate students for storage of their research data. Based on the consortium-developed High Performance Storage System (HPSS) software, MDSS offers over 2.8 petabytes of disk- and tape-based storage distributed between IU's Bloomington and Indianapolis campuses and supports replication of data between these two sites. Data may be transferred in and out of MDSS using a variety of interfaces, including SFTP, Parallel FTP, GridFTP, HSI, SMB/CIFS, and a simple Web-based user interface. We intend to initially support two data publishing scenarios: One in which a researcher submits a dataset by entering minimal metadata and uploading data files through DSpace's Configurable Submission Interface (which are then automatically placed in MDSS if they are over a specified filesize), and the other in which the researcher indicates as part of the submission process that the data to be published already resides in a personal or research group account in MDSS and should be copied into an IUScholarWorks-managed area of MDSS for availability through DSpace. In this presentation, we will discuss our conception of the service, its technical architecture and design, metadata requirements, and progress on implementation. We will also discuss the potential applicability of our approach and implementation to others who are interested in implementing similar services

Feasibility of Formation of Ge1-x-y Six Sny Layers With High Sn Concentration via Ion Implantation

By increasing the Sn concentration in Ge1-ySny and Ge1-x-ySixSny systems, these materials can be tuned from indirect to direct bandgap along with increasing electronic and photonic properties. Efforts have been made to synthesize Sn-Ge and Ge-Si-Sn structures and layers to produce lower energy direct bandgap materials. Due to low solid solubility of Sn in Ge and Si-Ge layers, high concentrations of Sn are not achieved by traditional synthesis processes such as chemical vapor deposition or molecular beam epitaxy. Implantation of Sn into Si-Ge systems, followed by rapid thermal annealing or pulse laser annealing, is shown to be an attractive technique for increasing Sn concentration, which can increase efficiencies in photovoltaic applications. In this paper, dynamic ion-solid simulation results are presented. Simulations were performed to determine optimal beam energy, implantation order, and fluence for a multi-step, ion-implantation based synthesis process

Documentation of a Gulf Sturgeon Spawning Site on the Yellow River, Alabama, USA

The Gulf Sturgeon Recovery Plan (USFWS, GSMFC and NMFS 1995) stressed the need to provide maximum protection to Gulf sturgeon spawning habitat. The approach employed by various Gulf sturgeon researchers, including ourselves, to document spawning has been to identify potential spawning habitat on the basis of physical characteristics and/or tracking data, collect eggs, and then raise the eggs in the laboratory until the point where the larval fish can be identified (e.g., Marchant and Shutters 1996, Sulak and Clugston 1998, 1999). However, collecting eggs in any appreciable number is usually difficult, and these eggs may not always be viable upon return to the laboratory. Molecular methods provide an alternative means of identifying the species represented by an egg. Notable examples related to sturgeon conservation include cases where molecular markers were used to verify the sources of commercially available caviar (DeSalle and Birstein 1996, Birstein et al. 1999). Parauka and Giorgianni (2002) reported that potential Gulf sturgeon spawning habitat is present in the Yellow River; however, efforts to document spawning by the collection of eggs or larvae have been unsuccessful in the past. Herein, we report on the first successful collection of eggs from a potential spawning site on the Yellow River and the verification of their identity as Gulf sturgeon by using molecular methods

A Comparison of Groundwater Storage Using GRACE Data, Groundwater Levels, and a Hydrological Model in Californias Central Valley

The Gravity Recovery and Climate Experiment (GRACE) measures changes in total water storage (TWS) remotely, and may provide additional insight to the use of well-based data in California's agriculturally productive Central Valley region. Under current California law, well owners are not required to report groundwater extraction rates, making estimation of total groundwater extraction difficult. As a result, other groundwater change detection techniques may prove useful. From October 2002 to September 2009, GRACE was used to map changes in TWS for the three hydrological regions (the Sacramento River Basin, the San Joaquin River Basin, and the Tulare Lake Basin) encompassing the Central Valley aquifer. Net groundwater storage changes were calculated from the changes in TWS for each of the three hydrological regions and by incorporating estimates for additional components of the hydrological budget including precipitation, evapotranspiration, soil moisture, snow pack, and surface water storage. The calculated changes in groundwater storage were then compared to simulated values from the California Department of Water Resource's Central Valley Groundwater- Surface Water Simulation Model (C2VSIM) and their Water Data Library (WDL) Geographic Information System (GIS) change in storage tool. The results from the three methods were compared. Downscaling GRACE data into the 21 smaller Central Valley sub-regions included in C2VSIM was also evaluated. This work has the potential to improve California's groundwater resource management and use of existing hydrological models for the Central Valley