scholarly journals The demise of safety film : a review of the cellulose acetate based negatives in the collection of the Kodak Canada Archive

2021 ◽  
Author(s):  
Megan Lena Harris
Keyword(s):  
Cellulose Acetate ◽  
Degradation Process ◽  
Housing Project ◽  
University Library ◽  
Knowledge Preservation

The vinegar syndrome, a process in which cellulose acetate based films deteriorate, is becoming a prominent problem within collections worldwide. To understand this phenomenon one must look at the history and make up of cellulose acetate, the chemistry of the degradation process and the steps institutions are taking to stabilize objects to allow future access. With this knowledge, preservation strategies need to be applied to promote longevity. To illustrate this idea, a collection of forty degrading negatives from the Kodak Canada Archive at Ryerson University Library have been used as a case study in which research on cellulose acetate, the chemistry of this material, the vinegar syndrome, and present recommendations for storage have been taken into consideration and used as a basis for a re-housing project. All information and objects are used to argue for the preservation of such objects and the understanding of the importance of the object itself.

scholarly journals The demise of safety film : a review of the cellulose acetate based negatives in the collection of the Kodak Canada Archive

2021 ◽  
Author(s):  
Megan Lena Harris
Keyword(s):  
Cellulose Acetate ◽  
Degradation Process ◽  
Housing Project ◽  
University Library ◽  
Knowledge Preservation

The vinegar syndrome, a process in which cellulose acetate based films deteriorate, is becoming a prominent problem within collections worldwide. To understand this phenomenon one must look at the history and make up of cellulose acetate, the chemistry of the degradation process and the steps institutions are taking to stabilize objects to allow future access. With this knowledge, preservation strategies need to be applied to promote longevity. To illustrate this idea, a collection of forty degrading negatives from the Kodak Canada Archive at Ryerson University Library have been used as a case study in which research on cellulose acetate, the chemistry of this material, the vinegar syndrome, and present recommendations for storage have been taken into consideration and used as a basis for a re-housing project. All information and objects are used to argue for the preservation of such objects and the understanding of the importance of the object itself.

scholarly journals Modeling the bioconversion of polysaccharides in a continuous reactor: A case study of the production of oligogalacturonates by Dickeya dadantii

2018 ◽  
Vol 294 (5) ◽  
pp. 1753-1762 ◽  
Author(s):  
Jacques-Alexandre Sepulchre ◽  
Sylvie Reverchon ◽  
Jean-Luc Gouzé ◽  
William Nasser
Keyword(s):  
A Priori ◽  
Pectate Lyase ◽  
Degradation Process ◽  
Continuous Reactor ◽  
Practical Implementation ◽  
Dickeya Dadantii ◽  
Pectate Lyases ◽  
Upper Limit ◽  
Promising Avenue

In the quest for a sustainable economy of the Earth's resources and for renewable sources of energy, a promising avenue is to exploit the vast quantity of polysaccharide molecules contained in green wastes. To that end, the decomposition of pectin appears to be an interesting target because this polymeric carbohydrate is abundant in many fruit pulps and soft vegetables. To quantitatively study this degradation process, here we designed a bioreactor that is continuously fed with de-esterified pectin (PGA). Thanks to the pectate lyases produced by bacteria cultivated in the vessel, the PGA is depolymerized into oligogalacturonates (UGA), which are continuously extracted from the tank. A mathematical model of our system predicted that the conversion efficiency of PGA into UGA increases in a range of coefficients of dilution until reaching an upper limit where the fraction of UGA that is extracted from the bioreactor is maximized. Results from experiments with a continuous reactor hosting a strain of the plant pathogenic bacterium Dickeya dadantii and in which the dilution coefficients were varied quantitatively validated the predictions of our model. A further theoretical analysis of the system enabled an a priori comparison of the efficiency of eight other pectate lyase–producing microorganisms with that of D. dadantii. Our findings suggest that D. dadantii is the most efficient microorganism and therefore the best candidate for a practical implementation of our scheme for the bioproduction of UGA from PGA.

scholarly journals STRATEGI LAYANAN PERPUSTAKAAN PERGURUAN TINGGI PADA MASA NEW NORMAL (STUDI KASUS UPT PERPUSTAKAAN UNIVERSITAS RIAU)

2021 ◽  
Vol 8 (2) ◽  
pp. 111-118
Author(s):  
Sastria Izprilla ◽  
Vita Amelia ◽  
Hadira Latiar
Keyword(s):  
Digital Libraries ◽  
Service Sector ◽  
Library Services ◽  
New Normal ◽  
University Library ◽  
Normal Period ◽  
It Department ◽  
Descriptive Approach ◽  
The University

This research is entitled strategy of university library services in the new normal period case study of the technical implementation unit (UPT) of the University of Riau library. The purpose of this study was to determine the service strategy taken by the technical implementing unit (UPT) of the Riau University library in the new normal era. The method used in this research is qualitative with a descriptive approach. The processing method uses data reduction, data presentation, and conclusions. The informants in this study were the head of the library, the head of the service sector, and the head of the IT department. The results of this study are that there are several strategies taken by the Riau University library, that is the development of digital libraries that must be accelerated and add supporting applications to ensure the smooth distribution of information to users.

scholarly journals Dutcher's Impact: Wolastioqiyik Lintuwakonawa as a Case Study for the role of Music in Preserving Traditional Knowledge

2019 ◽  
Vol 15 ◽  
Author(s):  
Kathryn E. Newhook
Keyword(s):  
Knowledge Management ◽  
Traditional Knowledge ◽  
Technical Skill ◽  
Knowledge Systems ◽  
Dynamic Nature ◽  
Diverse Field ◽  
Information Professionals ◽  
Knowledge Preservation

Knowledge Management is a diverse field of study, dealing in the facilitation of knowledge sharing, the creation of knowledge systems, knowledge transfer, and knowledge preservation. Information professionals play an important role in helping these processes happen. Equally important is the preservation of Traditional Knowledge. Recognized as the knowledge Indigenous people have accrued over millennia, and formed through their interactions with their environment, Traditional Knowledge and its preservation also fall into the world of Knowledge Management. The performance of a piece of music is the manifestation of knowledge and, in the case of Jeremy Dutcher, is a form of knowledge preservation. Traditional Knowledge’s more fluid and dynamic nature is preserved in Dutcher’s 2018 album Wolastioqiyik Lintuwakonawa, where the artist creates a conversation between technical skill and the knowledge and language of the album. In the case of this paper, Dutcher’s album serves as an example of the way Traditional Knowledge can impact and provide new tools to the information profession and world of Knowledge Management.

Lancelot of the Laik and the Literary Manuscript Miscellany in 15th- and 16th-century Scotland

Insular Books ◽  
2015 ◽  
Author(s):  
Emily Wingfield
Keyword(s):  
English Translation ◽  
16Th Century ◽  
British Isles ◽  
Cambridge University ◽  
University Library ◽  
Scottish Parliament ◽  
New Arcadia ◽  
Selection Of ◽  
Manuscript Copy

This chapter begins by introducing the most significant features of Scottish literary manuscript miscellanies, such as: their relatively late date, in comparison with surviving miscellanies from elsewhere in the British Isles; their copying by scribes who also functioned as notary publics, writers to the signet, and merchants; their links to some of Scotland’s most prominent book-owning families; and their inclusion of material derived from print and from south of the border. The remainder of the chapter offers a necessarily brief case study of one particular Older Scots literary manuscript miscellany (Cambridge, University Library, MS Kk.1.5) in which the Older Scots romance, Lancelot of the Laik, is placed alongside a selection of Scottish courtesy texts and legal material, a series of English and Scottish prophecies, several acts of the Scottish parliament, an English translation of Christine de Pisan’s Livre du Corps de Policie, and the only surviving manuscript copy of Sir Philip Sidney’s New Arcadia.

A Methodology for Building Knowledge Memory Within the Handicraft Sector

2019 ◽  
Vol 15 (3) ◽  
pp. 45-65 ◽  
Author(s):  
Imane El Amrani ◽  
Abdelmjid Saka ◽  
Nada Matta ◽  
Taoufik Ouazzani Chahdi
Keyword(s):  
Knowledge Engineering ◽  
Multimedia System ◽  
Methodological Framework ◽  
Know How ◽  
The World ◽  
Knowledge Preservation ◽  
Knowledge Memory ◽  
Interactive Multimedia System ◽  
Do So

The Moroccan handicraft is threatened by the loss of its knowledge and several authorities are calling to safeguard this cultural heritage through a detailed transcription and development of an interactive multimedia system. In response to this call, this article represents a first step in addressing this need. It provided a basic methodology for building a craft memory which will be considered as a benchmark for handicraft knowledge preservation. The study focuses on identifying the most critical and vulnerable know-how and modelling the knowledge which needs to be retained. To do so, a methodological framework is proposed and validated through a case study on the Moroccan zellige craft. The methods used here are derived from the world of Knowledge Management (KM) and Knowledge Engineering (KE); in particular, MASK method, GAMETH and M3C. Nevertheless, their systematic application is not perfectly adapted, it needs to be in accordance to the craft characteristics and the artisan's profile which is the key point of the current study.

Sign in / Sign up

Export Citation Format

Share Document