Converting WordStar to HTML4: Paper - iPRES 2014 - Melbourne

In this paper, we describe the processing and verification work undertaken to migrate WordStar for MSDOS to HTML4 formatted files

Beyond the Binary: Pre-Ingest Preservation of Metadata

This paper describes some of the challenges the National Library of New Zealand has faced in our efforts to maintain the authenticity of born digital collection items from first transfer to the Library through ingest into our digital preservation system. We assume that assuring the authenticity and integrity of digital objects means preserving the binary objects plus metadata about the objects. We discuss the efforts and challenges of the Library to preserve contextual metadata around the binary object, in particular filenames and file dates. We discuss these efforts from the two perspectives of the digital archivist and the digital preservation analyst, and how these two perspectives inform our current thinking

P13. A Code of Ethics for Digital Preservation

The digital preservation community has been without a code of ethics until this point. The National Library of New Zealand, in conjunction with the National and State Libraries of Australasia (NSLA), has developed a draft Code of Ethics for Digital Preservation. This code sets standards for the ethical behaviour of professionals in the community. It does so through highlighting and codifying our responsibilities to digital objects that have long-term value. It allows the community to have a degree of accountability through setting expectations. It acts as a statement of expectation for new members of the community, offering an introduction to who we are as a group and our responsibilities. The code is also an instrument of justification that can be referenced to support arguments for particular courses of action that are specific to the challenge addressed by digital preservation. Finally, the code offers a statement that the community is taking a step towards becoming a profession. The poster will introduce the draft code of ethics, giving context to the rationale behind its development and describing in detail the purpose and intent behind each of the principles. The poster will present the most recent draft of the code, taking account of feedback from the first stages of consultation

Conceptualising Optimal Digital Preservation and Effort: Paper - iPRES 2016 - Swiss National Library, Bern

In this paper we describe the National Library of New Zealand’s attempts to conceptualise how we measure the degrees of effort required to achieve acceptable levels of digital preservation. We argue that understanding digital preservation practice in terms of “optimal effort” may help us conceptualise where and how best to achieve the greatest impact in proportion to effort. The paper examines the various roles of digital preservation, including the archival/curatorial, digital object handling, preservation management, and policy roles through case studies of our experience. We argue that through conceptualising our ideal digital preservation and the levels of effort required to achieve those, we will be able to better understand where our effort is being expended and the levels of preservation we are achieving

Sharing, Using and Re-using Format Assessments: Workshop - iPRES 2016 - Swiss National Library, Bern

Many cultural heritage institutions with digital collections have performed assessments of file formats to inform decision making for a wide range of activities. The development of digitization standards and transfer requirements for depositors, the selection of storage and access platforms, and preservation planning and the decisions to use emulation or migration as a preservation approach all benefit from the assessment of file formats for their appropriateness in these different contexts. This workshop will bring together several institutions who have created format assessments, together with institutions who already are or could potentially reuse this work to inform their own institutional policies and preservation planning. The workshop will start with short presentations to expose the assessment work that has been done, followed by a discussion of how they are being used, or could be used, and possibilities for more effectively sharing these resources across institutions for the benefit of the digital preservation community

A next generation technical registry: moving practice forward: Paper - iPRES 2014 - Melbourne

In this paper we introduce the work of the National and State Libraries Australasia Digital Preservation Technical Registry project. Digital preservation practitioners must be able to assume technical and intellectual control of content they are charged with preserving. Our experiences tell us that the information and services used to underpin this control are insufficient. Enterprise-class digital preservation services require something better. We believe the solution outlined here is well placed to deliver information required to preserve digital content. Ultimately, this means that the practitioner can say with a strong degree of certainty that they do indeed have control of the content they are charged with preserving

C

Citrus plants accumulate many kinds of flavonoids, including di‐C‐glucosyl flavonoids, which have attracted considerable attention due to their health benefits. However, the biosynthesis of di‐C‐glucosyl flavonoids has not been elucidated at the molecular level. Here, we identified the C‐glycosyltransferases (CGTs) FcCGT (UGT708G1) and CuCGT (UGT708G2) as the primary enzymes involved in the biosynthesis of di‐C‐glucosyl flavonoids in the citrus plants kumquat (Fortunella crassifolia) and satsuma mandarin (Citrus unshiu), respectively. The amino acid sequences of these CGTs were 98% identical, indicating that CGT genes are highly conserved in the citrus family. The recombinant enzymes FcCGT and CuCGT utilized 2‐hydroxyflavanones, dihydrochalcone, and their mono‐C‐glucosides as sugar acceptors and produced corresponding di‐C‐glucosides. The Km and kcat values of FcCGT toward phloretin were <0.5 μm and 12.0 sec−1, and those toward nothofagin (3ʹ‐C‐glucosylphloretin) were 14.4 μm and 5.3 sec−1, respectively; these values are comparable with those of other glycosyltransferases reported to date. Transcripts of both CGT genes were found to concentrate in various plant organs, and particularly in leaves. Our results suggest that di‐C‐glucosyl flavonoid biosynthesis proceeds via a single enzyme using either 2‐hydroxyflavanones or phloretin as a substrate in citrus plants. In addition, Escherichia coli cells expressing CGT genes were found to be capable of producing di‐C‐glucosyl flavonoids, which is promising for commercial production of these valuable compounds