Situated within the interpretive and critical traditions, this study aims to contribute to one of the continuing primary themes in urban preservation: how to interpret and preserve the intangible values of built environments. A comprehensive analysis of dominant theories of urban preservation forms the conceptual framework within which this dissertation takes place. It starts by locating the intellectual context of preservation in North America, and examines its basic premises and core issues. It identifies three limits to the traditional approach to preservation planning. The complexity and fragility of history, its narrative quality and its particularities, its emotional content and economic values, all connect urban preservation with public history. Therefore, in the spirit of communicative democracy and "a shared authority", the study incorporates collective memory as an essential construct in urban landscapes, and suggests a culturally sensitive narrative approach (CSNA). The study employs an in-depth case study. The setting is Kensington Market in Toronto, Canada. It examines retrospectively the urban renewal planning of Kensington Market in the 1960s, identifies the pivotal events that prompted the change of urban renewal policies, and demonstrates, through the interpretive policy analysis, that sometimes urban renewal plans that fail to be implemented can become success stories in how to preserve urban neighborhoods as a kind of public history. To probe deeper into the sources of conflict between the professionals and the public, the study further explores the mutual relationship between collective memory and urban landscapes. It takes a selective look at some significant sites of memory, and connects them into a narrative path. Through oral history interviewing, field observation, and material cultural analysis, this part of the analysis constitutes an empirical study of CSNA. A proposition is derived from this critical case study. The study concludes with seven steps of CSNA, a guide for urban landscape preservation and planning.

Digital preservation is a significant challenge for cultural heritage institutions and other repositories of digital information resources. Recognizing the critical role of metadata in any successful digital preservation strategy, the Preservation Metadata Implementation Strategies (PREMIS) has been extremely influential on providing a "core" set of preservation metadata elements that support the digital preservation process. However, there is no evidence, in the form of previous research, as to what factors explain and predict the level of adoption of PREMIS. This research focused on identifying factors that affect the adoption of PREMIS in cultural heritage institutions. This study employed a web-based survey to collect data from 123 participants in 20 country as well as a semi-structured, follow-up telephone interview with a smaller sample of the survey respondents. Roger's diffusion of innovation theory was used as a theoretical framework. The main constructs considered for the study were relative advantage, compatibility, complexity, trialability, observability, and institution readiness. The study yielded both qualitative and quantitative data, and analysis showed that all six factors influence the adoption of PREMIS in varying degrees. Results of a regression analysis of adoption level on the six factors showed a statistically significant relationship. The R2 value for the model was .528, which means that 52.8% of the variance in PREMIS adoption was explained by a combination of the six factors. Considering the complexity of issue, this study has important implications for future research on preservation metadata and provides recommendations for researchers and stakeholders engaged in metadata standards development efforts.

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Submitted by Priscilla Araujo (priscilla@ibict.br) on 2016-07-26T17:41:49Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) PriscillaDissertaçãoFinal01.pdf: 7022366 bytes, checksum: b213e5571c0b525690f16fee628b4b8b (MD5) / Made available in DSpace on 2016-07-26T17:41:49Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) PriscillaDissertaçãoFinal01.pdf: 7022366 bytes, checksum: b213e5571c0b525690f16fee628b4b8b (MD5) Previous issue date: 2015-08-10 / Aborda sobre a preservação digital dos periódicos científicos eletrônicos em Ciência da Informação publicados no Brasil. Ressaltam-se primeiramente, conceituações e características relacionadas aos periódicos científicos eletrônicos e aos objetos digitais, além de elementos procedimentais e práticas envolvidas no âmbito da preservação digital de periódicos eletrônicos, conforme a literatura especializada. Foram identificadas também as ações das iniciativas internacionais e brasileiras de preservação digital de periódicos eletrônicos, entre elas, a Rede Cariniana, pioneira iniciativa coletiva brasileira de preservação digital. Em seguida, são analisados os resultados do questionário aplicado aos periódicos selecionados para esta pesquisa, bem como a observação nos sites The Keepers e da Rede Cariniana para complementar a pesquisa empírica inerente à preservação digital desses periódicos. Com base nesse aporte teórico e analítico foi possível apresentar o panorama das práticas de preservação digital dos periódicos científicos eletrônicos brasileiros em Ciência da Informação, enfatizando a importância das ações de preservação digital para assegurar o armazenamento adequado, a usabilidade e o acesso a longo prazo desses objetos digitais. / Discusses about the digital preservation of electronic journals in Information Science published in Brazil. Emphasizes first, concepts and functions related to electronic journals and digital objects, as well as procedural elements and practices involved in the framework of digital preservation of electronic journal, according to the specialized literature. International and Brazilian initiatives actions were also identified, among them, Cariniana Network, a pioneering Brazilian collective initiative of digital preservation. Then, analyzes the results of the questionnaire applied to the selected journals for this research and observation in sites The Keepers and Cariniana Network to complement the empirical research inherent in digital preservation of these journals. Based on this theoretical and analytical contribution it was possible to present an overview of digital preservation practices of Brazilian electronic journals in information science, emphasizing the importance of digital preservation actions to ensure proper storage, usability and long-term access to these digital objects.

The global perspective on digital revolution is one that has received a rapturous approval from information professionals, scholars and practitioners. However, such an approval has come at a great cost to memory institutions as the preservation of digital information has proved to be a complex phenomenon to memory institutions. Guided by the multi method design and underpinned by the triangulation of questionnaires, interviews, observation and document analysis, the study examined digital preservation of e-government in Ghana. Findings revealed that the creation of databases, digital publication, emails, website information and tweets were often ocassioned by the use of ICT, e-government, and application of legislations and public policies. It observed that these types of digital records were in urgent need for preservation as most of the ministries and agencies were unable to access their digital records. While the application of a digital preservation tool (Lots of Copies Keeps Stuff Safe) was a familiar terrain to the ministries and agencies, there was expressed lack of awareness about digital preservation support organisations and digital preservation standards. The study identified funding, level of security and privacy, skills training and technological obsolescence as factors that pose key threats to digital preservation. It noted backup strategy, migration, metadata and trusted repositories as the most widely implemented preservation strategy across the ministries and agencies. On the other hand, cloud computing, refreshing and emulation were the least implemented preservation strategies used to address the digital preservation challenges . The study recommends that the ministries and agencies can address many of the digital preservation challenges if they leverage on collaborative and participatory opportunities. Such collaborative and participatory opportunities involve the use of experts from other institutions to share resources and use a common protocol through cloud computing and Open Data. It further recommends that the process of developing a digital preservation policy can be guided by a template document from other jurisdictions / Information Science / D. Litt et Phil. (Information Science)

The global perspective on digital revolution is one that has received a rapturous approval from information professionals, scholars and practitioners. However, such an approval has come at a great cost to memory institutions as the preservation of digital information has proved to be a complex phenomenon to memory institutions. Guided by the multi method design and underpinned by the triangulation of questionnaires, interviews, observation and document analysis, the study examined digital preservation of e-government in Ghana. Findings revealed that the creation of databases, digital publication, emails, website information and tweets were often ocassioned by the use of ICT, e-government, and application of legislations and public policies. It observed that these types of digital records were in urgent need for preservation as most of the ministries and agencies were unable to access their digital records. While the application of a digital preservation tool (Lots of Copies Keeps Stuff Safe) was a familiar terrain to the ministries and agencies, there was expressed lack of awareness about digital preservation support organisations and digital preservation standards. The study identified funding, level of security and privacy, skills training and technological obsolescence as factors that pose key threats to digital preservation. It noted backup strategy, migration, metadata and trusted repositories as the most widely implemented preservation strategy across the ministries and agencies. On the other hand, cloud computing, refreshing and emulation were the least implemented preservation strategies used to address the digital preservation challenges . The study recommends that the ministries and agencies can address many of the digital preservation challenges if they leverage on collaborative and participatory opportunities. Such collaborative and participatory opportunities involve the use of experts from other institutions to share resources and use a common protocol through cloud computing and Open Data. It further recommends that the process of developing a digital preservation policy can be guided by a template document from other jurisdictions / Information Science / D. Litt et Phil. (Information Science)

近年來，資訊科技的進步，改變了人類溝通的方式、知識的管理和傳承、資訊的散播和儲存，對人類社會產生革命性的影響。檔案館開始面對大量的電子文書，並將原有的珍貴館藏轉換為數位物件典藏。然而，看似穩當的數位典藏方式，即使建立了適當的儲存環境，做好各種安全控管，未必能保證數位物件可供長期使用。為了長久保存數位物件並提供使用，除了轉存、轉置、技術模擬等廣受認同的保存方法外，還需要保存後設資料的配合，國際間已有許多相關研究。本研究以RLG、NLA、Cedars、NEDLIB四發展機構所提出的保存後設資料項目為比較對象，得出核心項目，再配合中研院近史所檔案館的需求，建置適用的保存後設資料項目。 經過比較發現，RLG、NLA、Cedars、NEDLIB所提出的保存後設資料項目，因為定位及應用目的不同，在規模、項目及描述層次上有差異，但描述重點仍有某種程度的共識。其中，NLA詳細記載歷次更動相關事項，並針對不同型態數位檔訂立不同的描述項目的做法，值得參考。 考量需求與館藏數位檔特性，中研院近史所檔案館保存後設資料項目雖以四種保存後設資料核心項目為基礎，在建置時仍做了部分修正與更動。(1) 保存後設資料的功能以協助保存決策制定及執行為主，不考慮提供使用的部分，也儘量不與原有後設資料重複；(2) 描述層級訂在系列層級；(3) 更動史項目，綜合NLA及Cedars之優點。限於系統功能限制，保存後設資料仍無法自動產生，也暫時不與數位檔及原有後設資料連結。 根據研究結果，對近史所檔案館及其他典藏機構提出下列建議：(1)制定數位保存政策及計畫；(2) 測試保存方法及保存後設資料項目；(3)留意相關科技及標準的發展趨勢；(4) 保存後設資料應儘量以自動、同步方式產生；(5) 明確定義描述規範。此外，對於數位保存後設資料及保存方法應再深入了解，並尋求跨領域合作機會。

This diploma thesis deals with a historical development of the nature preservation. Then it shifts its focus to various commitments emerging from the international as well as EU laws. At the international level, the work individually describes several international contracts related to the preservation of natural ecosystems. Within the scope of the European law, the thesis focuses on the realization of the nature preservation, using the system called Natura 2000 and its factual implementation into the Czech law. The text also examines the nature preservation and its impacts in the constitution of the Czech Republic. After a brief introduction to the law no. 114/1992 Coll., on the preservation of nature and landscape, the work in detail analyzes individual categories of general and specific territorial preservation. Finally, the thesis examines the case study on the mining towers in the micro-region Frenštátsko in the context of several questions related to the preservation of nature and landscape.

O presente estudo teve como objetivo avaliar a utilização de campo magnético pulsado (CMP) de baixa intensidade na preservação da qualidade microbiológica, cor e estabilidade oxidativa de carne bovina moída durante armazenamento aeróbio refrigerado. Amostras moídas de peixinho bovino (músculo Supraspinatus) foram expostas a CMP por 2 horas às frequências de 1, 30 ou 60 Hz ou, em outra etapa, expostas a CMP de 1 Hz de frequência por 2 horas ou continuamente por 12 dias. Amostras controle não foram expostas ao CMP. As amostras foram armazenadas a 4ºC por até 12 dias, e avaliadas a cada seis dias por meio de análise microbiológica de contagem total de bactérias mesófilas aeróbias, e a cada dois dias por meio de análises físico-químicas e bioquímicas: pH, cor instrumental (escala CIELAB), mioglobina e oxidação lipídica. A exposição ao CMP de 1 Hz por 2 horas reduziu a contagem de mesófilos aeróbios com relação ao controle em 1,3 ciclos logarítmicos no 12º dia de armazenamento refrigerado. Os conteúdos de metamioglobina das amostras expostas por 2 horas ao CMP, independente da frequência de pulso, foram significativamente menores com relação ao controle no 6º dia de armazenamento refrigerado. Os demais parâmetros de qualidade não sofreram alteração significativa com relação ao controle durante o armazenamento e não foi verificado efeito das diferentes frequências de CMP. Conclui-se que campo magnético pulsado de baixa intensidade (ordem de mili Tesla) apresenta potencial para ser utilizado como tecnologia inovadora, em combinação com a refrigeração, na preservação de carnes frescas. Todavia, mais estudos são necessários para melhor entendimento dos mecanismos de ação de campo magnético, principalmente em alimentos. / This study aimed to evaluate the use of low intensity pulsed magnetic field (PMF) in the preservation of microbiological quality, color and oxidative stability of ground beef during aerobic refrigerated storage. Ground beef samples of chuck tender (Supraspinatus muscle) were exposed to PMF for 2 hours at frequencies of 1, 30 and 60 Hz or, in another step, they were exposed to a 1 Hz PMF for 2 hours or continuously for 12 days. Control samples were not exposed to PMF. Samples were stored at 4ºC for up to 12 days, and evaluated every six days through microbiological analysis of total aerobic mesophilic bacteria count, and every two days through physicochemical and biochemical analysis of pH, instrumental color (CIELAB scale), myoglobin and lipid oxidation. Exposure to 1 Hz PMF for 2 hours reduced the growth of aerobic mesophiles in relation to the control by 1.3 logarithmic cycles in the 12th day of refrigerated storage. Metmyoglobin content of samples exposed to the PMF for 2 hours, regardless of the pulse frequency, were significantly lower compared to the control in the 6th day of refrigerated storage. The other quality parameters did not change significantly during storage compared to the control and it was not observed effect of different PMF frequencies. We concluded that low intensity pulsed magnetic field (order of mili Tesla) has the potential to be used as innovative technology, in combination with refrigeration, in fresh meat preservation. However, more studies are needed to better understand the mechanisms of action of magnetic field, mainly in foods.

Seit der Einführung der University of Wisconsin (UW)-Lösung ist für die humane Lebertransplantation eine sichere Kaltkonservierung von 24 Stunden möglich. Ungeachtet dieser Verbesserung kann es postoperativ weiterhin zu schweren Leberfunktionsstörungen bis hin zum Transplantatversagen kommen. Die Leberfunktionsstörungen stehen in engem Zusammenhang mit der Qualität und der Dauer der Organkonservierung. Eine verbesserte Organkonservierung sollte deshalb eine höhere Funktionsrate nach Implantation und eine Verlängerung der sicheren Konservierungsdauer ermöglichen. Mit der Untersuchung sollte die Frage beantwortet werden, ob eine kontinuierliche Perfusion von Schweinelebern mit der UW-Lösung anstelle einer Standardkaltlagerung in UW-Lösung einen geringeren Konservierungsschaden nach sich zieht. Weiterhin sollte mit dem Ziel der Etablierung eines in-vitro-Modells geklärt werden, ob mit dem modifizierten Modell der extrakorporalen Perfusion nach P. Neuhaus neue Konservierungslösungen unter Einsparung von Versuchstieren getestet werden können. Vor diesem Hintergrund wurde in zwei weiteren Versuchsgruppen die kontinuierliche Kaltperfusion mit der Freie Universität (FU)- bzw. der HTK-Lösung durchgeführt. Der Konservierungsschaden der Leber wurde während der sich an die Kaltkonservierung anschließenden Warmperfusion mit Schweineblut in-vitro quantifiziert. Die Unterschiede zwischen der kontinuierlichen Perfusion und der Kaltlagerung waren signifikant, wobei eine geringere Serumkonzentration der Transaminasen in der UW-Gruppe mit einer höheren Gallesekretion, einem geringeren arteriellen Widerstand und einer geringeren Zunahme des Lebergewichts einherging. Die Ergebnisse der FU-Gruppe lassen im Vergleich mit der kontinuierlichen Perfusion mit UW-Lösung eine ähnliche Konservierungsgüte annehmen, während der Konservierungsschaden in der HTK-Gruppe signifikant stärker ausgeprägt war. Zusammenfassend erwies sich die kontinuierliche Kaltperfusion mit der UW-Lösung als das besser geeignete Konservierungsverfahren, nahelegend, daß ein Einsatz eine sinnvolle Alternative zur Standardkaltlagerung sein könnte. Langjährige Erfahrungen mit der kontinuierlichen Perfusion bei der Nierentransplantation beim Menschen zeigen, daß im klinischen Alltag eine kontinuierliche Organperfusion technisch möglich ist. / COMPARISON OF DIFFERENT PRESERVATION SOLUTIONS FOR LONG-TERM CONTINUOUS PERFUSION OF THE LIVER The introduction of the University of Wisconsin (UW) solution for liver preservation in 1988 allowed for the first time the extension of the safe cold storage time up to 24 hours. Nevertheless, severe organ dysfunction of the liver may still occur postoperatively, depending on the quality and the duration of organ preservation. Therefore, improved organ preservation should make possible a higher rate of immediate organ function after transplantation and the extension of the safe cold storage time avoiding any wastage of organs due to liver dysfunction. Our study aimed to investigate whether continuous perfusion of pig livers in comparison to simple cold storage with the UW solution results in improved preservation. Furthermore, we examined if our extracorporal perfusion system, modified by P. Neuhaus, would be suitable to test new preservation solutions before clinical use allowing the establishment of a new in-vitro model. Thus, livers were perfused continuously using the Free University (FU) solution and the Histidine Tryptophan Ketoglutarate (HTK) solution respectively and preservation was compared to the UW solution. The preservation injury was measured in-vitro during a subsequent warm perfusion of the organ with pig blood. Differences between continuous perfusion and simple cold storage were significant. Lower concentrations of the transaminases in the UW group were associated with a higher bile secretion, a lower arterial pressure and a lower increase of the liver weight. Results obtained for the FU group suggest a comparable quality of preservation compared to livers continuously perfused with UW solution, whereas the extent of the preservation injury was significantly higher in the HTK group. In conclusion, in our experimental design continuous perfusion with UW solution seems to be a better method for organ preservation suggesting that the clinical use of this technique may be beneficial. Large experience with continuous perfusion for human renal procurement has proven its technical feasibility.