Teses / dissertações: "Conservation of collections"

1

Harmon, Amanda Lauren Leslie. "Herbarium Collections Management Internship". Miami University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=miami1524744021639645.

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2

Bulow, Anna Elisabeth. "Preventive conservation for paper-based collections within historic buildings". Thesis, De Montfort University, 2002. http://hdl.handle.net/2086/4313.

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Previous research has been carried out concerning the conservation of both historic buildings and library and archive collections. Little work has, however, been undertaken to look at the interface between the two. The following research has been carried out in the context of an interdisciplinary project linking key disciplines in an examination of the issues relating to conservation problems in historic buildings used for library and archive purposes. This thesis presents a comprehensive literature review, evaluating published data on both the preservation of paper-based collections in libraries and archives, and preventive conservation of historic buildings and monuments. Emphasis is given to the interface between the two. Furthermore, a survey of British archives and libraries has been carried out, including the evaluation of questionnaire and site data. The survey focuses on preventive conservation measures as well as past and present problems of dampness. This survey proved problems with dampness to be often misdiagnosed and the consequences of damage underestimated. From the surveyed collections, two case studies have been selected for environmental monitoring in order to investigate macro- and micro-climates under different environmental conditions. Resulting data suggest that the micro-environment of a confined space is influenced by the amount of paper housed within it. This has assisted in explaining the interaction between paper and the immediate environment. At the same time, data has confirmed that the overall surface area of paper available for environmental interaction is more important than paper type or book size, with respect to the overall conditions within the storage space. Although degradation mechanisms of paper with respect to cycling conditions are not entirely clear, results of this study emphasise the importance of ventilation and dehumidification in order to avoid mould germination and/or growth. The data have been used to determine whether the internal environment of enclosed bookcases, and hence the immediate environment of the collection, can be adequately predicted from ambient data taken within the room. Mathematical models have been developed for both metal and wooden bookcases, and have shown that even when the ambient conditions are unstable, the relationship between ambient RH and the RH inside a book in an enclosed bookcase can be predicted within a 5% margin (1% for a stable environment).

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3

Oikawa, Junko. "Future role of living plant collections in gardens for biodiversity conservation". Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314314.

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4

Laroque, Claude. "Les papiers transparents dans les collections patrimoniales : composition, fabrication, dégradation, conservation". Paris 1, 2003. http://www.theses.fr/2003PA010594.

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Les papiers transparents souvent appelés papiers calques, posent des problèmes particuliers dans les collections patrimoniales. Leur spécificité tient à leur vocation utilitaire, leur nombre, leurs dimensions, leur fragilité liée, leur rapidité à se dégrader. La recherche s'articule autour de quatre axes qui permettent de connaître la nature des collections, d'en comprendre les sensibilités pour préconiser des modes de traitement conservatoires. Les recherches historiques ainsi que l'analyse d'échantillons prélevés dans diverses collections permettent de connaître la composition et le mode de fabrication des papiers. Le suivi des changements des propriétés physiques et chimiques des papiers lors d'un vieillissement artificiel permet de comprendre les mécanismes d'altération. Deux traitements de stabilisation chimique et mécanique sont proposés et évalués. Des méthodes de stockage spécifiques pour la protection des documents de grande taille et en grand nombre sont également répertoriées.

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5

Hontos, Vasiliki. "Conservation survey of the Benaki Museum Photographic Archive in Athens, Greece /". Online version of thesis, 1991. http://hdl.handle.net/1850/11621.

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6

Carothers, Milena R. "Ancient Cypriot Glass: Production, Reception, and the Collections at the Claremont Colleges". Scholarship @ Claremont, 2019. https://scholarship.claremont.edu/scripps_theses/1339.

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This thesis examines the collection of Cypriot glass stored in the basement at Scripps and its context throughout history. The first chapter focuses on the collection itself and includes a brief summary of the founding of the Mudd family’s Cyprus Mines Corporation, which led to the collection of the glass. The repatriation of the collection is also detailed. The second chapter examines the history of Cyprus, and how valuable resources such as copper led to trade on the island. A history of glass is given: how it was made, what it was made out of, and how it was used and appreciated at different times in history. The third chapter addresses the history of the glass trade and production on Cyprus. Island-specific shapes and production are explored. This chapter also looks at how glass was valued and used by different levels of society as glass production evolved and led to a saturated market. The fourth chapter focuses on five pieces selected from the Scripps and Mudd collections. These case studies include conservation condition reports. Physical description, condition, use, and similar examples in other collections are detailed. The final chapter addresses glass conservation. It contains an analysis of previous conservation interventions, descriptions of different types of weathering and degradation, and tips for stabilizing, storing, shipping, handling, and displaying the collection.

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7

Jouves, Barbara. "La conservation et la restauration des tableaux des collections privées à Paris (1789-1870)". Thesis, Paris 1, 2019. http://www.theses.fr/2019PA01H070.

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Préoccupés par la conservation de leurs collections de peintures, les amateurs d’art parisiens font appel, entre 1789 et 1870, aux restaurateurs de tableaux, ces derniers relevant d’une profession qui, à la même époque, se définit indépendamment de celles du marchand, de l’expert ou même du peintre. Si le restaurateur intervient sur les œuvres du particulier, il joue, par ailleurs, pour l’amateur, un rôle de guide dans sa connaissance, voire dans son apprentissage, des procédés picturaux. Progressivement, cette prise en compte de la matérialité de l’œuvre contribue à intégrer le collectionneur au sein des commissions muséales en tant que conseiller, avant qu’il n’acquière un statut privilégié au musée à partir des années 1860 par le legs de ses œuvres
Concerned about the conservation of their art collections, in the years between 1789 and 1870, Parisian amateurs called upon the services of painting restorers, who, at that time, belonged to a profession considered quite separate from that of art dealer, expert or even painter. While the restorer worked on paintings belonging to private collectors, he also acted as a guide for the latter, broadening their knowledge of Ŕ or even teaching them about Ŕ pictorial techniques. This understanding of the materiality of artworks gradually contributed to collectors being invited into museum committees as advisors, before they acquired a privileged status in museums, from the 1860s onwards, by bequeathing their collections

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8

Fricker, Anna L. "The conservation of polymeric materials in museum collections using advanced surface science and surface analysis techniques". Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/44079.

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This thesis describes the research work performed to determine the effect of conservation cleaning treatments on plastics that might be encountered in the museum environment. As part of this work, surface analysis techniques were used to examine the changes occurring to the surfaces of two plastics, polystyrene and poly(methyl methacrylate), following the application of seven different cleaning treatments. Substrates were analysed using optical microscopy, white light interferometry, scanning electron microscopy, atomic force microscopy and time-of-flight secondary ion mass spectrometry in conjunction with principal component analysis of the data. The use of sophisticated analysis techniques enabled the characterisation of surface changes at the sub-micron scale. Experimental data obtained for virgin sheet polystyrene substrates revealed surface damage due to cleaning in the form of scratching, attributed in part to the mechanical action of the cloth over the substrate. Residues from surfactants were also detected and were still present after repeated rinsing. The addition of an artificial carbonaceous soil to the surface was found to result in the appearance of scratches on PMMA and a change in the topography of scratches formed on polystyrene due to abrasion from the soil. Accelerated ageing of the substrates revealed changes to the plastics' bulk properties and surface chemistry, as well as the appearance of formations on the polystyrene surface. Further indications of damage caused by cleaning also became apparent with ageing. The cleaning behaviour of aged polystyrene substrates was found to be notably different to that of the unaged substrates. Finally, the initial physical and chemical condition of a real-world object was characterised and its cleaning behaviour evaluated, enabling comparison with the virgin polystyrene substrate. The findings from this work provide valuable information regarding the microscopic changes that can occur to plastic substrates as a result of cleaning and the implications for their future stability.

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9

Fidan, Derya. "Conservation And Transformation Of Railway Areas: Iskenderun Terminus Area". Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614926/index.pdf.

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The aim of this thesis is to understand the conservation and transformation problems of railway heritage and to prepare a conservation and transformation principles for Iskenderun railway area. Primarily, it is tried to understand the historical process and the current situation of conservation of railway areas. In addition, in this study theoretical and historical framework of transformation of railway areas is developed in the light of international charters and documents. Transformation examples from Turkey and Europe were searched with analyzing the railway system and transformation approaches of the countries. In order to prepare a conservation and transformation principles for Iskenderun terminus area, considering the direct relation of the railway site with the port site, a wide border including the port for the study area is chosen and a detailed analyzes were done for whole area. For this study, the major concern is establishing strong principles in different scales. It is important to guide each conservation and transformation projects in Turkey. For rooted solutions, regulations have to start in the transformation strategies and railway policy.

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10

Halsban, Megan. "Stereographs as Scholarly Resources in American Academic Libraries and Special Collections". Thesis, School of Information and Library Science, 2008. http://hdl.handle.net/1901/543.

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This paper examines stereographic images as scholarly resources, and begins with a brief history of the stereograph. A discussion and review of the literature related to the stereograph as well as the preservation of photographic objects follows the introduction. In addition to the literature review, collections of stereographs at four repositories were evaluated for usability: The Keystone-Mast Archive at the University of California, Riverside; The Eliot Elisofon Archive at the Smithsonian Institution; the George Eastman House; the Library of Congress. The paper ends with suggestions for future work with the stereograph, in order to facilitate access and use by researchers.

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11

Ungricht, Stefan. "Les figuiers endémiques de la Nouvelle-Calédonie : Evaluation quantitative des collections pour la taxonomie, floristique et conservation". Montpellier 2, 2004. http://www.theses.fr/2004MON20219.

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12

Tulce, Ayten Huma. "The Conservation Principles For The Brick And Tile Factories In Eskisehir". Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614984/index.pdf.

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The aim of this thesis is to develop conservation principles for the brick and tile industry in Eskisehir, one of the symbolic industrial cities in Turkey where brick and tile has been the significant production from the Early Republic Period. The conservation of these structures, complexes and mechanical elements is a controversial issue owing to their physical, economical, social and administrative values. The principles how to conserve and why is searched through discussions on conservation approaches, development plans and values. Focusing on this aim, this study is structured in six parts as the research on industrialization and industrial heritage, review and discussion of value types, survey on brick and tile industry, the value assessment process for the factories with the proposed value types and the implementation of conservation principles. In conclusion, the development of principles is an essential process in conservation of cultural heritage. This thesis proposes conservation principles over physical, social and administrative structure for industrial heritage for brick and tile factories in the Eskisehir Industrial Area.

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13

Ren, Josephine. "Islamic Ceramics, Indelible Creations: Assessing and Preserving the Scripps Collection". Scholarship @ Claremont, 2019. https://scholarship.claremont.edu/scripps_theses/1353.

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This research project examines and documents the collection of Islamic ceramics at Scripps College from an art conservation standpoint. The main objectives were to establish provenance for these objects, assess their current conditions, propose recommendations for future preservation, and discuss the importance of preventive conservation and general collections care methods. Based on my survey and research, I demonstrated which objects in particular should be prioritized due to their states of conservation and significant educational value. Such objects raise further points of departure regarding authenticity and conservation ethics.

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14

Lissart, Marie Sanz Pascal. "Quelle conservation des collections d'étude et de recherche pour l'agglomération lyonnaise ? Le cas des lettres et Sciences humaines". [S.l.] : [s.n.], 2004. http://www.enssib.fr/bibliotheque/documents/dcb/lissart.pdf.

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15

Shulman, Katharine. "Paintings in Transit: A New Means For Protection of Collections, Balancing Traditional and Modern Conservation Philosophies and Methods". Scholarship @ Claremont, 2015. http://scholarship.claremont.edu/scripps_theses/697.

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This thesis examines the motives behind museum loan and exchange policies and how loans can act as a new avenue for protecting and preserving paintings. When borrowed artworks are transported from one museum to another, there are many variables that come into play and careful planning is necessary for the safety of the object. Specific case studies of several well-known and respected museums that engage in and encourage loans will explore the complex nature of lending policies, their effect on the condition of artworks and their significance and impact on the museum world. This thesis culminates in an analysis of the loan fitness and possibility for transport of Joachim Beich’s Untitled, a painting in the Scripps College collection.

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16

Nicolas, Yann. "La réforme maorie de la Bibliothèque Nationale de Nouvelle-Zélande dimension stratégique et enjeux techniques (collections, catalogues, accès, conservation) /". [S.l.] : [s.n.], 2003. http://www.enssib.fr/bibliotheque/documents/dcb/nicolas.pdf.

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17

Ardagna, Yann. "La conservation des archives biologiques et des documents associés en anthropologie biologique : applications à des collections anthropologiques françaises et hongroises". Aix-Marseille 2, 2004. http://www.theses.fr/2004AIX20680.

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La conservation réfléchie des collections anthropologiques représente une nouvelle approche du concept « d’archives biologiques ». Notre travail, qui s’inscrit dans le contexte de la gestion et de l’exploitation scientifique de ces collections, a pour objectif d’améliorer leur définition et leur conservation à l’aide d’outils spécifiques que nous développons. Nous avons reconsidéré les collections anthropologiques dans une perspective épistémologique et nous en proposons une nouvelle classification adaptée à leur gestion scientifique. Nous avons élaboré un dispositif informatique de gestion composé de trois bases de données assurant l’indexation des collections, des sujets étudiés et des données paléopathologiques associées en nous basant sur les collections des laboratoires d’anthropologie de Marseille et de Szeged (Hongrie). Nous avons réalisé des analyses comparatives avec près d’une quarantaine de lieux de dépôts anthropologiques et mettons en perspective ces recherches dans la réflexion nationale et internationale sur l’évolution du statut des collections anthropologiques et leur avenir à long terme
A new approach of “biological archives” can be illustrated by the “thoughtful” conservation of anthropological collections. The aim of our investigation is to improve the field of curation and scientific exploitation of “human remains library”. In that way, we are developing specific tools which are dedicated to an amelioration of both definition and curation of anthropological series. The epistemological perspective of anthropological series is take into account and we are developing a new classification adapted to their scientific management. We are also proposing a curation system constituted by tree databases dedicated to the storage of data concerning collections, individuals and their associated paleopathological features based on Marseilles and Szeged Department of Anthropology of. A comparison with 40 different places of storage could have been realised. Furthermore, a bibliographical study allowed the identification of the main patterns of long term curation

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18

Crobe, Valentina <1989&gt. "Towards the conservation of vulnerable marine large predators: morphometric, molecular and microchemical variation of historical sawfish rostra from Mediterranean collections". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amsdottorato.unibo.it/10177/1/PhD_Thesis_VCrobe_def040422.pdf.

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Sawfishes (Chondrichthyes, Pristidae) are considered one of the most endangered families among elasmobranchs. Extensive efforts are required worldwide to gather solid information on historical and recent changes in the composition/range of species. In this study, we have implemented an integrative approach to characterize the species diversity and the abundance of historical rostra of sawfishes from museums and private collections of the Mediterranean area. The identification at the species level of 172 dried rostra was carried out through the integration of both traditional and geometric morphometric techniques with molecular tools, allowing the assessment of a robust methodical approach to discriminate species. In addition, we analysed 35 rostral teeth to clarify the past distribution of sawfish species considering the isotopic composition of oxygen and carbon. The morphometric, molecular, and geographical characterization of samples was accompanied by the preliminary evaluation of growth structures and the inspection of the strontium isotope composition in two teeth to unravel movement patterns of individuals across different salinities of water. Results were integrated with currently available data from public repositories and showed that the historical specimens belonged to four nominal species: Pristis zijsron (81), Anoxypristis cuspidata (39), P. pristis (30), and P. pectinata (22). An identification error of 5.41% emerged in the morphological distinction of rostra between juvenile individuals of P. pectinata and P. zijsron. The new approach of carbon and oxygen isotopes, implemented for the first time in these taxa, permitted the identification of the high-probability habitat preferences of these benthopelagic elasmobranchs in about 50% of the analysed specimens. Using this multidisciplinary approach, we successfully assigned the numerous museum rostra with lacking data to a given species and identified their candidate geographical origin, retrieving novel information and data for understanding the species distribution and ecology of past, sometimes locally/regionally extinct sawfish faunas.

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19

Rolland, Frédéric. "Les collections privées de films de cinéma en support argentique en France". Versailles-St Quentin en Yvelines, 2009. http://www.theses.fr/2009VERS008S.

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Les aléas de la conservation des films (dans le cadre de l’industrie du cinéma) ont abouti à ce qu’un nombre considérable de films ait disparu. Alors que des cinémathèques et centres d’archives audiovisuels institutionnels se sont multipliés et qu’ils disposent de fonds importants, il existe parallèlement en France de simples amateurs, collectionneurs de films en support argentique, qui disposent parfois de titres rares ou uniques dans tous les formats. Au-delà des films d’édition, face à un contexte légal souvent hostile à leur passion, leurs activités et leur existence même restent méconnues. La connaissance des ressources dont ils disposent s’avère malgré tout souhaitable sur le plan patrimonial mais aussi fonctionnel alors que le processus de transition technique de la chaîne de fabrication et de diffusion du cinéma photochimique vers le numérique s’est amorcé depuis quelques années. La numérisation des fonds répertoriés devrait rester pour longtemps incomplète et de nombreux films resteront invisibles. Les collectionneurs privés pourraient collaborer plus avant avec les institutionnels et les ayants-droit à la préservation du patrimoine cinématographique français
The vagaries of film preservation (within the film industry) has led to a considerable number of films to vanish. While film and audiovisual archives institutions have multiplied and they have significant funds, there are at the same time in France amateurs, collectors of silver film prints, which sometimes have rare or unique titles in all formats. Beyond release films, specialized for amateur market, face a legal environment often hostile to their passion, their activities and even their existence are unknown. Knowledge of available resources is still desirable in terms of heritage but also functional when the transition process chain engineering manufacturing and distribution of photochemical film to digital began last few years. The digitization of holdings listed should remain incomplete for long and many films will be invisible. Private collectors could further collaborate with institutions and rightholders to the preservation of French cinema

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20

Laforge, Valérie. "La conservation des artefacts textiles : essai d'ethnologie appliquée". Master's thesis, Université Laval, 1987. http://hdl.handle.net/20.500.11794/29216.

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21

Sheehan, Jennifer Karr. "Intangible Qualities of Rare Books: Toward a Decision-Making Framework for Preservation Management in Rare Book Collections, Based Upon the Concept of the Book as Object". Thesis, University of North Texas, 2006. https://digital.library.unt.edu/ark:/67531/metadc5213/.

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For rare book collections, a considerable challenge is involved in evaluating collection materials in terms of their inherent value, which includes the textual and intangible information the materials provide for the collection's users. Preservation management in rare book collections is a complex and costly process. As digitization and other technological advances in surrogate technology have provided new forms representation, new dilemmas in weighing the rare book's inherently valuable characteristics against the possibly lesser financial costs of surrogates have arisen. No model has been in wide use to guide preservation management decisions. An initial iteration of such a model is developed, based on a Delphi-like iterative questioning of a group of experts in the field of rare books. The results are used to synthesize a preservation management framework for rare book collections, and a small-scale test of the framework has been completed through two independent analyses of five rare books in a functioning collection. Utilizing a standardized template for making preservation decisions offers a variety of benefits. Preservation decisions may include prioritizing action upon the authentic objects, or developing and maintaining surrogates in lieu of retaining costly original collection materials. The framework constructed in this study provides a method for reducing the subjectivity of preservation decision-making and facilitating the development of a standard of practice for preservation management within rare book collections.

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22

Saint-Pierre, Louise. "Le patrimoine à la carte : individualisation, réflexivité et globalisation dans le processus de patrimonialisation du végétal domestique au Québec". Master's thesis, Université Laval, 2007. http://hdl.handle.net/20.500.11794/19081.

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23

Karatas, Esra. "The Role Of Cultural Route Planning In Cultural Heritage Conservation The Case Of Central Lycia". Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613825/index.pdf.

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The main subject of the thesis is planning &ldquo
cultural routes&rdquo
as a method for conservation of cultural and natural heritage areas at regional scale. Defining a framework of conceptual principles which should be considered in spatial planning of cultural routes and regional networks constitutes the major aim of the thesis. Within the scope of the study, a new developing concept recently, cultural routes are discussed as a tool for sustaining historic and local values of rural and archaeological landscapes. In this respect, the study is structured in two main parts. Firstly, conceptual background on the issue is discussed as the development of cultural route concept, definitions declared by international organizations working on the issue and principles of route planning. Secondly, based on the conceptual research, basic concepts and principles for route planning process is discussed through a case study. The case study for the thesis is selected as the Kas- Kekova region in Antalya, known as the Central Lycia in antiquity. Depending on the assessment of region&rsquo
s cultural landscape, the study is resulted by description of a spatial and conceptual framework for planning of a cultural route network in the region. Through areas rich in cultural and natural heritage, planning routes and networks at regional scale could be used as an effective tool for presenting and sustaining multivalent character of the place, and leading economic sectors which have effect on heritage.

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Nékoulnang, Djétounako Clarisse. "Les collections scientifiques et leur valorisation : une politique de recherche et un enjeu socio-culturel. L'exemple du patrimoine tchadien et d'autres collections paléontologiques africaines". Thesis, Poitiers, 2015. http://www.theses.fr/2015POIT2288/document.

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Depuis le XVe siècle l'Italie a été une terre d'élection de collectionneurs, des particuliers dont certains ont très tôt placé leurs collections à la disposition du public. Les curieux collectionnent les objets dans pour la plupart des cas pour des raisons de pouvoir, de politique ou encore d'option religieuse, mais pas dans un souci de conservation. Cependant le développement de réseaux de sociabilité et de commerce au XVIe siècle a fait des cabinets de curiosité une réalité européenne. A la mort des collectionneurs, certaines collections sont vendues et d'autre transformées en musée dès le XVIIe siècle, d'autres sont aussi, au XVIIIe et au XIXe siècle, à l'origine des collections conservées actuellement dans les lycées et universités. L'histoire des collections européennes, y compris au regard de l'évolution la plus récente des musées, permet de réfléchir à ce que peuvent et doivent être aujourd'hui des collections, et pour ce qui concerne leur conservation et les conditions de leur étude, et pour ce qui est de leur ouverture au public. Or suite aux découvertes paléontologiques majeures en Afrique, et dans le but de gérer et de valoriser les collections générées, de nombreux musées nationaux s'installent dans les capitales et changent de représentation muséographique pour devenir de véritables muséums orientés vers des développements de recherches scientifiques. C'est également à travers ces découvertes que le monde entier et les africains eux-mêmes ont pris conscience de la diversité et de l'immense richesse naturelle et patrimoniale de ce continent. Les collections paléontologiques du Tchad présentent un intérêt scientifique très important, qui résulte de leur impact sur les connaissances de l' « Origine et l'Histoire de la Famille Humaine ». Sur plus de 20 000 spécimens fossiles mis au jour par la MPFT, 18343 sont inventoriés et numérisés, dont 316 types et figurés. Une base de données de ces spécimens types a été construite avec ces types et figurés sous Access est mise en ligne sur le site du CNAR et des catalogues ont été également établis et imprimés au cours de ce travail. Ces collections constituent aujourd'hui une des plus riches collections paléontologiques d'Afrique Centrale, en particulier pour la période du Mio-Pliocène (de -7,3 à 3 Ma), génèrent aussi un enjeu socio-culturel indéniable. Une réflexion est menée et des pistes sont proposées pour assurer non seulement une vraie politique de conservation mais aussi de valorisation, notamment auprès du grand public. Notre thèse entend contribuer à la réflexion sur l'avenir des collections africaines, notamment tchadiennes
For the XVth century Italy was a playground of favourite of collectors, private individuals among whom some very early placed their collections at the disposal of the public. The curious collect objects for the most part of the cases for reasons for being able to, of politics or still religious option, but not with the aim of preserving them. However the development of networks of sociability and business in the XVIth century made cabinets of curiosity an European reality. When the collectors die, certain collections are sold and of other one transformed into museum from the XVIIth century, others are also, in the XVIIIth and in the XIXth century, at the origin of collections kept at present in high schools and universities. The history of the European collections, including with regard to the most recent evolution of museums, allows to think about what can and have to be collections today, and as regards their preservation and the conditions of their study, and as for their opening to the public. Yet further to major discoveries in paleontology in Africa, and with the aim of managing and valuing these collections, numerou national museums settle in capitals and museum representation change to become real museums oriented developments of scientific research. It is also through the paleontological discoveries in Africa that the whole world and the Africans became aware themselves of the diversity and the immense natural and patrimonial wealth of this continent. The paleontological collections of the Chad present a very important scientific interest, which results from their impact on the knowledge of the " Origin and the History of the Human Family ". On more than 20 000 fossil specimens brought to light by the MPFT, 18343 are inventoried and digitized, including 316 types and figured, a database was built with these guys and figured in Access is posted on the CNAR Site and catalogs on these type specimens were also developed and printed in this work. These collections constitute one of the richest paleontological collections of Central Africa today, in particular for the period of Mio-Pliocène (from 7,3 to 3 My). Also generates an undeniable socio- cultural issue. A study is conducted and trails are proposed to ensure not only a true conservation policy but also of valuation, including the general public. Our thesis intends to contribute on second thought on the future of the African, in particular Chadian collections

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Alhaji, Said. "Les méthodes d'expositions des collections archéologiques romaines au musée, nature et mise en scène : étude comparative entre les musées en France et les musées en Syrie". Dijon, 2008. http://www.theses.fr/2008DIJOL003.

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Cette recherche porte sur les méthodes d’expositions des collections archéologiques romaines dans les musées en France et en Syrie. Elle se construit de deux parties. La première partie théorique se compose de trois chapitres qui abordent le développement du musée archéologique, l’architecture muséale, le musée de site, la conservation et la restauration, la chaîne opératoire d’objets archéologiques, l’exposition muséales, l’interprétation, la médiation et enfin l’étude du public et d’évaluation de l’exposition. La seconde partie pratique se compose de trois chapitres. Le premier chapitre est consacré au développement des musées archéologiques en France apportant quatre musées de différentes disciplines qui présentent les collections et les sites archéologiques gallo-romains (à Lyon, à Dijon, à Autun et à Bibracte). Le deuxième chapitre aborde trois différents musées syriens qui présentent des collections et des sites archéologiques romains (à Damas, à Suweïda et à Bosra). Enfin, le troisième chapitre présente les résultats d’enquêtes menées auprès du public dans les musées étudiés en Syrie et en France, ainsi que leur comparaison
This research concentrates on the methods of exhibitions of the Roman archaeological collections in museums in French and in Syria. It constructs two parts. The first theoretical part consists of three chapters which approach the development of the archaeological museum, the muséale architecture, the museum of site, the conservation and the restoration, the chain operating archaeological objects, the exhibition, the interpretation, the mediation, and finally the study of public and the valuation of exposition. The second part composes of three chapters. The first chapter is dedicated to the development of archaeological museum in French, it talks about four museums of different disciplines which present collections and Gallo-Roman archaeological sites (Lyon, Dijon, Autun and Bibracte). The second chapter approaches three different museums of Syrians present collections and the Romans archaeological sites (Damascus, Suweida and Bosra). Finally, the third chapter presents a field study which treats the results of the surveys of the public in the museums studied in Syria and in French, and which shows a comparative study between the archeological museums and their public in both countries

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Hairie, Clara. "La dégradation de Byne : efflorescences de sels de calcium sur les collections de micropaléontologie". Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPAST084.

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L'apparition d'efflorescences cristallines sur des objets calcaires stockés dans des environnements pollués, communément appelée "dégradation de Byne", résulte de l'émission de composés organiques volatils (COV) acides par les matériaux de stockage. Ces acides réagissent avec le carbonate de calcium en formant des sels organiques de calcium, dont des acétates et des sels mixtes acétate-formiate, qui provoquent une détérioration irréversible du substrat. Jusqu'à présent, seuls des objets macroscopiques subissant la dégradation de Byne avaient été décrits dans la littérature.Ce travail vise à comprendre comment la dégradation de Byne peut aussi affecter des spécimens calcaires microscopiques présents dans les collections de micropaléontologie. Il a été initié par la numérisation de la collection de foraminifères d'Alcide d'Orbigny (1802-1857), conservée au Muséum national d'Histoire naturelle (MNHN), qui a révélé des dommages importants liés à la présence d'efflorescences salines.Un constat d'état a été mené sur l'ensemble de la collection d'Orbigny (plus de 3600 spécimens), mettant en évidence que les altérations, à la fois anciennes et évolutives, sont influencées par la cristallinité des tests et l'origine des lieux de prélèvement des foraminifères. Des collections voisines ont été examinées à titre comparatif et des recherches en archives ont permis de retracer l'histoire de la collection depuis son entrée au MNHN. Elles mettent en évidence de nombreux déménagements et des accidents tels que la crue de la Seine de 1910, qui expliquerait l'humidité particulièrement élevée à l'intérieur des tubes où sont conservés les foraminifères. Des variations importantes de température, combinées à la présence de matériaux émetteurs de COV introduits à la fin du XIXe siècle dans le montage des spécimens, sont ainsi à l'origine de la pollution acide et de la prolifération des sels.Parallèlement à cela, une procédure de vieillissement artificiel a été élaborée pour reproduire la dégradation de Byne sur des foraminifères sains. Les produits de dégradation formés sur les spécimens vieillis, ainsi que sur une sélection représentative de spécimens historiques, ont été analysés de manière non invasive et sans contact par spectroscopie micro-Raman et par diffraction des rayons X sur rayonnement synchrotron. Ces analyses ont mis en évidence des phases minéralogiques différentes de celles observées dans la littérature sur les collections macroscopiques. Ce sont ainsi des formiates de calcium qui prédominent, et tout particulièrement le polymorphe tétragonal [β-Ca(HCOO)2] connu pour être instable lorsqu'il est synthétisé en laboratoire. Aucun acétate ou sel mixte de calcium n'a pu être identifié sur les foraminifères de la collection d'Orbigny. Les vieillissements montrent que l'humidité relative et la taille des spécimens jouent un rôle primordial dans la formation des sels : des conditions humides favorisent la cristallisation du formiate de calcium sur le spécimen, tandis que l'acétate, très hygroscopique, est sujet aux cycles de déliquescence-cristallisation qui le conduisent à se disperser autour de l'échantillon lorsque celui-ci est de très petite taille.Enfin, pour mieux comprendre la prédominance du formiate de calcium [β-Ca(HCOO)2], différentes solutions de formiate de calcium ont été laissées à évaporer et placées dans des environnements à humidité variée afin d'étudier la transformation vers la phase stable [α-Ca(HCOO)2]. L'analyse semi-quantitative des produits montre que la présence d'ions tels que ceux trouvés dans les coquilles de foraminifères (Mg2+, Sr2+...) favorise la formation de la phase métastable, et ralentit la transition β-->α.Ce travail montre que la nature des sels formés par la dégradation de Byne n'est pas seulement tributaire des COV présents mais dépend aussi de la taille des spécimens, leur composition, la cristallisation de leur test et des cycles d'humidité et de température auxquels ils ont été soumis
The appearance of crystalline efflorescence on calcareous objects stored in polluted environments is commonly referred to as "Byne's decay". It results from the emission of acidic volatile organic compounds (VOCs) from storage materials, which react with calcium carbonate to form organic calcium salts. This includes acetates and mixed acetate-formate salts that cause irreversible deterioration of the substrate. Until now, only macroscopic objects undergoing Byne's decay had been reported in the literature.This work focuses on how Byne's decay can also affect microscopic calcareous specimens from micropaleontology collections. It was initiated by the digitization of the foraminifera collection of Alcide d'Orbigny (1802-1857), housed at the Muséum national d'Histoire naturelle (MNHN), which revealed significant damage due to the presence of saline efflorescences.A condition report was carried out on the whole of the d'Orbigny collection (more than 3600 specimens), highlighting that the alterations, both ancient and evolutionary, are influenced by the crystallinity of the tests and the origin of the places where the foraminifera were collected. Similar collections closely located were examined for comparison and archival research was conducted to trace the material history of the collection since its entry into the MNHN. They highlight several moves and accidents such as the flooding of the Seine in 1910, which would explain the particularly high levels of humidity inside the tubes where the foraminifera are kept. Significant variations in temperature, combined with the presence of VOC-emitting materials introduced at the end of the 19th century in the assembly of the specimens, are thus at the origin of the acid pollution and the proliferation of salts.At the same time, an artificial aging procedure was developed to reproduce Byne's decay on unaltered specimens. The degradation products formed on the aged specimens, as well as on a representative selection of historical ones, were analysed non-invasively and without contact by using micro-Raman spectroscopy and synchrotron X-ray diffraction. These analyses revealed mineralogical phases different from those observed in the literature on macroscopic collections. Thus, calcium formates and especially the tetragonal polymorphic phase [β-Ca(HCOO)2] known to be unstable when synthesized in laboratory conditions, predominate. No calcium acetate or mixed salt could be identified on d'Orbigny's foraminifera. Aging shows that the relative humidity and the size of the specimens play a primordial role in the formation of the salts: humid conditions favour the crystallization of calcium formate directly on the specimen, while acetate, very hygroscopic, is subject to deliquescence-crystallization cycles that lead to its redispersion around micrometer-scale specimens.Finally, to better understand the predominance of calcium formate [β-Ca(HCOO)2], different calcium formate solutions were left to evaporate and placed in environments with different humidity to study the transformation towards the stable phase [α-Ca(HCOO)2]. Semi-quantitative analysis of the products shows that the presence of ions such as those found in foraminiferal shells (Mg2+, Sr2+…) favours the formation of the metastable phase and slows down the transition β-->α.This work shows that the nature of the salts formed by Byne's decay is not only dependent on the VOCs present, but also on the size of the specimens, their composition, their test crystallization, and the moisture and temperature cycles to which they were exposed

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Grenier, Cécile. "Diversité génétique des sorghos cultivés. Gestion des ressources génétiques et contribution des marqueurs moléculaires à la constitution de core collections". Montpellier 2, 2000. http://www.theses.fr/2000MON20009.

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Adapte a la cerealiculture en conditions de secheresse extreme, le sorgho (sorghum bicolor (l. ) moench) est une cereale majeure pour l'agriculture des regions tropicales semi-arides. La collection de sorgho maintenue a l'icrisat (inde) recense 22 473 varietes traditionnelles et pose le probleme de la conservation et de l'utilisation optimale des ressources genetiques. Dans ce travail, mene en collaboration avec l'icrisat, nous apportons des elements de reponse a trois questions : - quelle diversite genetique est conservee a l'iac ? peut-on faciliter l'acces a la collection de ressources genetiques ? - il est impossible de s'interesser de maniere efficace a une grande collection. Quelles strategies peut-on utiliser pour constituer des core collections ? - diversite prise en compte vs. Diversite non prise en compte lors de l'echantillonnage, quel est l'impact de l'une sur l'autre ? dans notre etude nous avons analyse la diversite morpho-agronomique de la collection de base de maniere globale, et en fonction des races et des origines. Differentes strategies de prelevement aleatoires (c, p et l) et non aleatoires (pcs et multi-criteres) ont ete appliquees. Les core collections obtenues ont ete comparees en fonction de la diversite morpho-agronomique et de la diversite moleculaire (15 locus microsatellites) retenues. A l'exception de quelques locus presentant des associations fortes avec les caracteres structurant de la diversite, les diversites moleculaire et morpho-agronomique semblent relativement independantes. Les marqueurs moleculaires peuvent donc etre des outils interessant a considerer pour la constitution de core collections.

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Kimbrough, Julie L. "21ST CENTURY PRESERVATION CHALLENGES FOR LAW LIBRARIES". Thesis, School of Information and Library Science, 2004. http://hdl.handle.net/1901/34.

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This study examines the preservation practices of academic law libraries and argues that the survey results illustrate the growing gap between current preservation practices and new technology. The introduction to the study discusses challenges for libraries and cultural institutions in the digital age. In the second section, the paper analyzes U.S. copyright law and the effect of recent amendments on library preservation activities. The third section reports the results of a preservation practices survey. In the fourth section, the paper explores options for future law library preservation including institutional repositories and collaborative preservation efforts. The paper concludes that a new approach to scholarship and preservation is necessary to ensure that future generations have access to historically important legal literature.

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Séguin, Laurent Barbier Frédéric. "Les collections de romans populaires et leur conservation dans les fonds patrimoniaux de la Bibliothèque nationale de France l'exemple du "Livre populaire" de la Librairie Arthème Fayard /". [S.l.] : [s.n.], 2005. http://www.enssib.fr/bibliotheque/documents/dcb/seguin-vol1.pdf.

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Fontaine, Alexia. "Conditions d'émergence et développement des collections vestimentaires : patrimonialisation, muséalisation, virtualisation : regards croisés France- Canada-Québec (XIXe-XXIe siècle)". Doctoral thesis, Université Laval, 2017. http://hdl.handle.net/20.500.11794/28272.

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Troublée par l’avènement inopiné de la mode au musée, nous avons souhaité cerner puis examiner les fondamentaux du « musée de la mode », que nous considérons comme un concept historique. Depuis les années 1990, il s’impose en effet dans la sphère culturelle comme un nouveau modèle de musée. Nous nous questionnons donc sur le phénomène qui sous-tend cette effervescence. S’il fait son apparition dans les années 1980, il est issu d’une forme muséale plus ancienne que l’on désignait alors par « musée du costume ». Nous entendons ainsi mener une enquête sur le « musée de la mode » par la saisie de l’essence du phénomène muséal observable. Pour ce faire, il nous faut nous inscrire dans un temps long du patrimoine, afin de montrer les conditions d’émergence et la trajectoire des collections vestimentaires dans le paysage muséal et le développement des différentes formes muséales, du premier musée du costume au musée de la mode d’aujourd’hui. Du point de vue de la muséologie, la réalité du musée de la mode comme nouvelle catégorie de musée nous semble tronquée, et introduit un flou dans la pratique des collections vestimentaires. D’une part le discours sur l’objet est incomplet, puisqu’il ne prend pas en compte toutes les typologies d’artefacts vestimentaires, et d’autre part, il provoque une rupture dans l’intérêt porté à des collections plus anciennes ou moins fastueuses. Devant l’insistance à parler de vêtement « de mode » ou de haute couture, plutôt que de costume sous peine de paraître dépassé, il nous semble évident que le musée vit une tension. Pourtant les sciences humaines et sociales ont montré que la mode est un mot « valise », une porte ouverte vers la compréhension du fait vestimentaire : l’histoire et la culture des apparences, l’économie et la sociologie du paraître, le système technique et industriel de l’habillement. Il ne semble que du côté de la recherche comme du musée, une nouvelle vague est en route. L’engouement que les modes vestimentaires suscitent dans la sphère culturelle, l’attention que les universitaires lui portent, participent à revisiter l’approche des collections plus anciennes et stimuler une réflexion muséologique sur cette typologie d’objet muséal qui obtient une place de plus en plus importante dans le secteur patrimonial. Le phénomène muséal lié à la mode est loin de ne concerner que l’acquisition du contemporain. Notre recherche se donne pour objectif de générer une véritable muséologie du patrimoine vestimentaire, grâce à une recherche menée sur les fondamentaux de ce phénomène muséal, un état des lieux du paysage muséal, et la saisie des perspectives d’avenir de ces collections. Des conditions d’émergence à l’avènement du musée des modes vestimentaires, nous souhaiterions établir une nouvelle catégorie de connaissance sur l’histoire culturelle du vêtement : sa genèse patrimoniale et son parcours muséal. Au niveau théorique, nous nous sommes intéressée aux processus de patrimonialisation et de muséalisation qui traduisent, de manière simplifiée, la mise au patrimoine et la mise en musée d’un catégorie d’objet. Dans le but de rendre ces processus opérationnels, nous avons conçu une grille d’analyse qui rassemble les observations de nombreux chercheurs en museum studies et en muséologie. Ainsi, notre cadre théorique s’est affiné avec l’élaboration du concept des régimes de muséalité, en référence aux régimes d’historicité inventés par l’historien français François Hartog et aux régimes d’authenticité élaborés par l’historienne québécoise Lucie K. Morisset, qui nous a permis de déterminer les modalités, la logique et la dynamique du phénomène muséal. Nos recherches se sont basées sur une étude croisée d’institutions françaises et québécoises qui forment notre terrain : les Musées de la civilisation à Québec, le Musée des civilisations de l’Europe et de la Méditerranée, la Cité internationale de la dentelle et de la mode à Calais, et le Musée de la mode à Montréal. L’examen au niveau microéconomique de l’émergence et du développement des collections vestimentaires de ces musées nous a conduit à dégager, au niveau macroéconomique, quatre cycles d’investissement de sens, de construction discursive et d’élaboration de pratiques muséales spécifiques au patrimoine vestimentaire… Quatre régimes de muséalité.
Curious about the unexplained advent of the fashion museum, this study originated with the task of identifying and examining the basic characteristics of the “fashion museum, ” which it considers to be a historically specific construct. Since the 1990’s, the fashion museum has asserted itself in the cultural world as a new model of museum. This study inquires into the phenomena that undergirded this flourishing. If this institution first appeared in the 1980’s, it originated from an older model known as the “costume museum”. Thus I intend to undertake a study on the “fashion museum” using the observable phenomenon of the museum itself. To do so, this project inscribes the “fashion museum” in a long heritage tradition, demonstrating the conditions of its emergence and the trajectory that dress collections followed within the broader museum landscape, including the development of other forms of museums, from the first “costume museum” to the fashion museum of today. From a museological perspective, the fashion museum’s arrival as a new category of museum may seem truncated, and introduces ambiguity in the practices of dress collections. On the one hand, its discourse about objects is necessarily incomplete because it does not take into account the full range of typologies of vestimentary artifacts; on the other hand, it siphons interest away from older or less sumptuous collections. This type of museum exists in a state of tension, beholden to the insistence of speaking of “fashion” garments or of haute couture, rather than of costumes, which might appear outmoded. Indeed, the social sciences have show that fashion is a portmanteau word, a point of entry towards understanding the phenomenon of clothing: the history and culture of looks, the economics and sociology of appearances, the technical and industrial systems of dress. A new wave has begun for both research and museums. The passion that fashion elicits in the cultural sphere, with the attention scholars bring to the subject, has contributed to revisiting the approach of even the oldest collections and to stimulating the museological reflection this typology of museum objects that has attained an increasingly significant place within the heritage sector. Museum institutions connected with fashion are far from acquiring only contemporary pieces. The aim of this project is to generate a museology of the vestimentary heritage, thanks to research undertaken dealing with the fundamental characteristics of this phenomenon, a kind of inventory of the museum landscape, and understanding the future prospects of these collections. From the conditions under which the fashion museums emerged, this study seeks to establish a new category of knowledge about the cultural history of clothing: its genesis as heritage and its trajectory as a fitting set of objects for a museum context. On a theoretical level, this dissertation is concerned with the processes of “herigatization” and “musealization, ” essentially those processes by which a type of object becomes part of heritage and of museums. With the goal of explaining these processes, I have therefore conceived of an analytical matrix that brings together the observations of numerous researchers in museum studies and museology. Thus, this project’s theoretical framing has been refined by elaborating the concept of “regimes of museality, ” derived from French historian François Hartog’s notion “regimes of historicity, ” and the concept of “regimes of authenticity, ” adapted from Quebec historian Lucie K. Morisset. These concepts provide the possibility for determining the modalities, logic, and dynamics of the museological phenomenon. This research is based on a crossover study of French and Quebec institutions that form the relevant population: les Musées de la civilisation (Museums of Civilization) in Quebec City, Canada; le Musée des civilisations de l’Europe et de la Méditerranée (Museum of European and Mediterranean Civilisations) in Marseille, France; the Cité internationale de la dentelle et de la mode (International Center for Lace and Fashion) in Calais, France; and the Musée de la mode (Fashion Museum) in Montreal, Canada. A microeconomic examination of the emergence and development of the dress collections at these museums clarifies four cycles at the macroeconomic level of investment of meaning, discursive construction, and elaboration of museum practices specific to vestimentary heritage… Four regimes of museality.

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Ekmekci, Onur Tunc. "Defining General Conservation Principles For Primary Schools Of Rum Minority In Istanbul". Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614589/index.pdf.

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In this thesis, it is aimed to make a study on Primary Schools of Rum Minority in Istanbul, and in light of this study, to define general principles for conservation studies on these schools. Rum Minority had an important part in social and cultural life in Istanbul and in late 19th Century, their impact in the city increased with their financial power, especially in Beyoglu. Increase in number of schools they built also occurred in the same timeline. Schools built in and after this term by Rum Minority were built as important public buildings of a minority group and possess strong authenticity, technical-artistic, socio-cultural and economical values. In order to decide which values, problems and potentials these buildings bear, a site survey study is done for this thesis. Primary Schools of Rum Minority in Istanbul are among strongest solid evidences of cultural diversity in Istanbul, and Turkey. While conserving these cultural assets, considering all their values, problems, and potentialities is vital. In addition to conservation studies, interpretation and presentation are also necessary steps for reintegration of these buildings to the city. This thesis performs as an effort made to document features and current state of these schools, decide their value, problems, and potentials
and defining general conservation principles for them.

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Svensson, Anna. "A Utopian Quest for Universal Knowledge : Diachronic Histories of Botanical Collections between the Sixteenth Century and the Present". Doctoral thesis, KTH, Historiska studier av teknik, vetenskap och miljö, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217554.

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This thesis explores the history of botany as a global collection-based science by tracing parallels between utopian traditions and botanical collecting, from their sixteenth-century beginnings to the present. A range of botanical collections, such as gardens, herbaria and classification systems, have played a central role in the struggle to discover a global or universal scientific order for the chaotic, diverse and locally shaped kingdom of plants. These collections and utopia intersect historically, and are characterised by the same epistemology of collecting: the creation of order through confined collecting spaces or “no-place.” They are manipulations of space and time. Between chaos and order, both seek to make a whole from – often unruly – parts. The long history of botanical collecting is characterised by a degree of continuity of practice that is unusual in the sciences. For instance, the basic technology of the herbarium – preserving plants by mounting and labelling dried specimens on paper – has been in use for almost five centuries, from sixteenth-century Italy to ongoing digitisation projects. The format of the compilation thesis is well-suited to handling the historiographical challenge of tracing continuity and discontinuity with such a long chronological scope. The thesis is structured as a walled quadripartite garden, with the Kappa enclosing four research papers and an epilogue. The papers take a diachronic approach to explore different perspectives on botanical collections: botanical collecting in seventeenth-century Oxford, pressed plants in books that are not formally collections; and the digitisation of botanical collections. These accounts are all shaped by the world of books, text and publication, historically a male-dominated sphere. In order to acknowledge marginalisation of other groups and other ways of knowing plants, the epilogue is an explanation of an embroidered patchwork of plant-dyed fabric, which forms the cover of the thesis.
Denna avhandling behandlar historien om botanik som en global samlingsbaserad vetenskap genom att följa paralleller mellan utopiska traditioner och botaniskt samlande från dess början på femtonhundratalet till idag. Olika sorters botaniska samlingar, till exempel trädgårdar, herbarier och klassifikationssystem, har historiskt spelat en central roll i sökandet efter en global eller universell vetenskaplig ordning i växtrikets lokalt rotade och till synes kaotiska mångfald. Det finns historiska kopplingar mellan dessa botaniska samlingar och utopi, som båda även präglas av vad man kan kalla samlandets epistemologi: skapandet av ordning genom avgränsade samlingsutrymmen eller ”icke-platser”. De är manipulationer av tid och rum. Det botaniska samlandets långa historia utmärks av en praktisk kontinuitet som är ovanlig inom naturvetenskapen. Herbariets grundläggande teknik att bevara växter genom att pressa, identifiera och montera dem på pappersark har varit i bruk i nästan fem sekel. Avhandlingen utnyttjar sammanläggningsformatet för att hantera den historiografiska utmaning det innebär att studera en så lång tidsperiod, genom att de ingående artiklarna behandlar skilda tidsepoker och disciplinära perspektiv samtidigt som de alla delar avhandlingens centrala tematik: ordnande genom avgränsade samlingsutrymmen. Avhandlingens struktur är baserad på den muromgärdade fyrdelade trädgården, med kappan som inneslutande fyra artiklar och en epilog. Artiklarna är diakrona analyser av botaniska samlingar: om samlande i Oxford på sextonhundratalet, om pressade växter i böcker som inte formellt utgör del av samlingar, och om digitaliseringen av botaniska samlingar. Dessa sammanhang är alla formade i en värld av böcker, text och publicering – en värld som historiskt har dominerats av män. Epilogen belyser den marginalisering av andra grupper och deras kunskaper om växter som detta har inneburit, genom att förklara avhandlingens omslag, ett lapptäcksbroderi av växtfärgade tyger.

QC 20171115

Saving Nature: Conservation Technologies from the Biblical Ark to the Digital Archive

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Sudan, Azize Elif. "The Role And Approach Of Local Authorities In The Field Of". Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614769/index.pdf.

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From the middle of 20th century, as a result of devastating effects of world wars conservation activities intensified on the protection in area scale. Together with central government and local authorities, the owner or the user of the building, entrepreneurs, groups, non-governmental organizations (NGOs) and society were meant to be included in the process. Today, local authorities play important role in the implementation of the restoration or street rehabilitation projects. Today in Turkey, municipalities are the second most important actors in the field of conservation after Ministry of Culture and Tourism. There are seen important changes after 1980s in Turkey in the field of conservation, which are that the localization in conservation increased and the role of local governments became more important. From the beginning of 2000s, the power of municipalities increases with the transfer of decision-making power to the municipalities. In this thesis, the role of local authorities in the field of conservation was discussed with the case of Hamamö
nü
-Ankara, a good example of the conservation implementation of a local authority showing the approach and study process of the municipality. Before explaining implementations of Altindag Municipality in Hamamö
nü
and their different effects on site and the people
a short start giving general information about development of role of local authorities in the field of conservation throughout the world was done and the legislative process in Turkey was stated. Moreover, after the assessment of implementation under different titles, some proposals for future of Hamamö
nü
were done.

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Gomes, Ismael Dagostin. "Taxidermia e educação ambiental: uma proposta sul catarinense para a conservação da biodiversidade". Universidade do Vale do Rio dos Sinos, 2013. http://www.repositorio.jesuita.org.br/handle/UNISINOS/4439.

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SATC - Associação Beneficente da Indústria de Santa Catarina
A questão ambiental é um dos temas de maior relevância da atualidade, e a conservação da biodiversidade encontra-se extremamente alinhada à esta realidade. Entretanto, para que os ecossistemas sejam preservados, faz-se necessário o desenvolvimento de estratégias de sensibilização dos indivíduos, já que é a ação antrópica que origina seus principais impactos. Desta forma, este trabalho tem por objetivo relatar uma proposta prática de conservação da biodiversidade através da educação ambiental que utiliza animais silvestres taxidermizados, realizada na Escola Educacional Técnica – EDUTEC/SATC, em Criciúma, sul de Santa Catarina. Esta ideia foi iniciada por intermédio da oferta de uma oficina científica que desenvolve a técnica de taxidermia (manutenção da epiderme de vertebrados de acordo com as etapas: coleta, limpeza, retirada das vísceras, tratamento químico com bórax/alúmen e/ou formol, secagem e finalização artística) e que utiliza seu acervo em exposições monitoradas, oportunizando conhecimentos ecológicos referentes aos exemplares associados com elementos socioeconômicos e político-culturais. Neste sentido, a oficina de taxidermia confeccionou 34 espécimes de 26 espécies, que foram expostos em 08 eventos e obtendo 11 trabalhos publicados. Contudo, a oficina de taxidermia concretizou relevante coleção zoológica, que possibilitou a construção e a disseminação de saberes e práticas em prol da conservação da biodiversidade e da sustentabilidade.
The environment issue is one of the most important matters nowadays, and the conservation of the biodiversity is totally in consonance with this reality. However, for the ecosystems to be preserved it is necessary to develop strategies that sensitize individuals as it is the anthropic action that causes the main impacts. Thus, this work has the aim to propose a biodiversity conservation practice through environmental education that uses wild animals that have been through taxidermy process which is performed at “Escola Educacional Técnica” – EDUTEC/SATC, in Criciúma, South of Santa Catarina. This idea started through the scientific workshop that develops the taxidermy technique (the skin maintenance of vertebrate animals according to the following steps: collecting, cleaning, removing the entrails, chemical treatment with borax/alum and/or formaldehyde, dryness and final embellishment). They use the collection in monitored exhibitions and provide ecological knowledge of the samples associated with socio-economic and politic-cultural elements. Therefore, the taxidermy workshop has made 34 samples from 26 specimen, that were exposed in 08 events and getting 11 publications. However, the taxidermy workshop made a relevant zoological collection that has provided the construction and the expansion of knowledge and practices because of the need to preserve the biodiversity and for the sustainability.

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Moullé, Prévost Clémence. "Transmettre un patrimoine dispersé : le cas des vestiges archéologiques chypriotes depuis 1960 : processus, enjeux actuels et nouvelles orientations". Thesis, Rennes 2, 2022. http://www.theses.fr/2022REN20014.

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Le patrimoine archéologique chypriote - l’un des fondements de l’identité territoriale et culturelle d’un pays toujours divisé - est large-ment méconnu en dehors de la communauté scientifique. Paradoxalement, le développement des fouilles archéologiques dès le XIXe siècle a permis la constitution de nombreuses collections à travers l’Europe. Celles-ci conservent et exposent un patrimoine archéologique dispersé, dont le sens n’est que partiellement saisissable. La transmission de ce patrimoine repose à la fois sur la préservation et la valorisation des vestiges. À partir d’enquêtes empiriques, cette thèse dessine une image actualisée de ce patrimoine. Dès lors, les moyens employés pour le préserver et le valoriser sont analysés depuis 1960 - date à laquelle Chypre devient un pays indépendant et mène sa propre politique de sauvegarde et de mise en valeur du patrimoine - jusqu’à nos jours. Pour cela, une sélection de sites et monuments - représentatifs de différentes périodes de l’histoire de l’île - et d’expositions permanentes à Chypre et dans les principaux musées européens sont étudiés. Cette démarche invite à s’interroger sur l’histoire de l’archéologie et des collections : elle propose de comparer les moyens de préservation et de mise en valeur pour en définir les enjeux actuels. Forte de cette analyse comparée et diachronique, cette thèse propose ensuite d’explorer les perspectives possibles pour redonner du sens à ce patrimoine en partage. Enfin, la question du contexte archéologique émerge dans la dernière partie de cette thèse et s’impose alors comme un enjeu de transmission du patrimoine, propre à soutenir de nouvelles expériences de visite
The archaeological heritage of Cy-prus is one of the foundations of the territorial and cultural identity of a country that is still divi-ded, yet it remains largely unknown outside the scientific community. However, the development of archaeological excavations since the 19th century has enabled the formation of various collections throughout Europe. These collections preserve and exhibit a scattered archaeological heritage, and its meaning is only partly acces-sible. Passing on this heritage relies on both the preservation and the display of the remains. Based on empirical investigations, the thesis draws up an up-to-date overview of this heritage. Thus, the means used to preserve and enhance it are analyzed, starting from 1960 - the date when Cyprus became an independent state and began implementing its own policy for protecting and enhancing its heritage - to the present day. To this end, a selection of sites and monuments is studied - they are representative of different periods of the island’s history - as well as a nu-mber of permanent exhibitions in Cyprus and in the major museums of Europe. This study invites questioning the history of archaeology and ar-chaeological collections: it suggests comparing preservation and display methods, in order to highlight the current issues at stake. On the ba-sis of this comparative and diachronic analysis, this thesis then proposes to explore the possible perspectives for giving meaning to this shared heritage. Lastly, the matter of the archaeological context is discussed in the final part of the thesis. Archaeological context is revealed as of crucial importance in the transmission of the heritage, promoting new visitor experiences

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Gallard, Anthony. "Etude de la cryoconservation d'apex en vue d'une conservation à long terme de collections de ressources génétiques végétales : compréhension des phénomènes mis en jeu et évaluation de la qualité du matériel régénéré sur le modèle pelargonium". Phd thesis, Université d'Angers, 2008. http://tel.archives-ouvertes.fr/tel-00448693.

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La conservation des ressources génétiques végétales est un défi majeur, le maintien de la biodiversité étant capital pour répondre aux besoins des générations futures. Ce travail de thèse, s'inscrivant dans cette démarche de conservation, a été réalisé sur Pelargonium, plante ornementale multipliée végétativement. Un procédé de cryoconservation d'apex par « dropletvitrification » a été mis en place avec succès sur P. x peltatum ‘Balcon Lilas'. Avec un taux de régénération moyen de 40 % obtenu sur 28 taxons testés, la constitution d'une cryobanque est maintenant possible. L'optimisation de la survie post-cryoconservation passant par une meilleure connaissance des effets des solutions cryoprotectrices sur les cellules, des études microscopiques faisant appel notamment à la RTM (Real Time Microscopy) et la CLSM (Confocal Laser Scanning Microscopy) ont été pratiquées. Elles ont permis de mettre en évidence, d'une part que la solution de vitrification (PVS2) provoque une contraction importante et rapide des cellules en agissant sur les parois et d'autre part que la solution de charge (LS), outre son rôle d'osmoticum, atténue les altérations dues à PVS2. Les travaux sur la régénération in vitro à partir d'apex ont montré que celle-ci était le plus souvent directe ce qui peut favoriser le maintien de la conformité. Ainsi, une plante obtenue après régénération d'un apex cryoconservé ou non, ne présente pas de modifications phénotypiques sauf chez certains cultivars chimériques. Enfin, des tests ELISA ont montré une augmentation du taux d'assainissement lors d'une régénération après cryoconservation par rapport à une simple culture d'apex pour deux virus (PFBV et PLPV). Cependant les immunolocalisations réalisées ont mis en évidence que les virus étaient toujours présents dans les apex, l'élimination n'étant que partielle. L'augmentation de ces connaissances devrait permettre une utilisation à plus grande échelle de la cryoconservation participant ainsi à une meilleure gestion de la conservation des ressources génétiques par une offre stratégique plus importante.

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Mantellatto, Aline Meira Bonfim [UNESP]. "Padrões de distribuição histórica, relações filogenéticas e filogeográficas de veado-mateiro-pequeno, Mazama bororo DUARTE, 1996 (Mammalia: Cervidae)". Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/144487.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Considerada a espécie de cervídeo brasileira mais ameaçada de extinção, Mazama bororo, foi recentemente descrita em 1996. Devido a isso, aspectos básicos de sua biologia ainda são desconhecidos. Dessa maneira, o presente trabalho teve como objetivo utilizar DNA extraído de espécimes recentes e de museus para descrever a sua distribuição histórica, investigar a existência de padrões filogeográficos, avaliar a taxonomia da espécie e os erros de identificação no material analisado pertencente aos acervos científicos de museus. Para tanto, foi realizada a extração de DNA de 200 amostras de ossos turbinais obtidos em museus de história natural e 78 destes espécimes foram identificados a partir de iniciadores do gene citocromo b (224bp). O total de 22 espécimes identificados como pertencentes à espécie Mazama bororo permitiu conhecer áreas inéditas da distribuição histórica e, possivelmente atuais, da espécie, como os estados de Rio Grande do Sul, Minas Gerais, Goiás, Espírito Santo e Bahia. Além disso, a comparação entre o DNA dos holótipos de Mazama bororo e de Mazama americana jucunda indica que a espécie M. bororo corresponde à subespécie M. americana jucunda, descrita em 1913, demonstrando a necessidade de elevar essa subespécie à categoria de espécie. Análises filogeográficas da espécie demonstram que M. bororo não apresenta uma estruturação populacional histórica e que diversidade genética é baixa quando comparada a outras espécies, um indicativo de que políticas de manutenção e conservação dessa espécie são essenciais a sua permanência. Comparando-se as identificações morfológicas presentes nos museus com as identificações obtidas a partir do marcador molecular utilizado observa-se que a taxa de erro decorrente da classificação baseada em caracteres morfológicos foi de 26%. Entretanto, espera-se que, com o auxílio do DNA de coleções científicas, a seleção de caracteres morfológicos não convergentes para este grupo seja possível, permitindo assim a realização de identificações morfológicas corretamente.
Mazama bororo was recently described in 1996 and is considered the most threatened species of Brazilian deer. Due to this, basic aspects of its biology are still unknown. Thus, this research project aims to use DNA extracted from recent specimens and from natural history collections to review the taxonomy, to describe historical distribution and to investigate the existence of phylogeographic patterns on M. bororo. For this purpose, we extracted DNA from 200 samples of turbinate bones obtained from natural history collections and 78 of these were identified from cytochrome b initiator (224bp). We obtained a total of 22 specimens identified as M. bororo. This result allowed identify unpublished areas on historical and perhaps current distribution of M. bororo in states such as Rio Grande do Sul, Minas Gerais, Goiás, Espírito Santo and Bahia. Moreover, the comparison among the DNA from holotype of M. bororo and Mazama americana jucunda indicates that M. bororo corresponds to the subspecies M. americana jucunda, described in 1913, highlighting the need to raise this subspecies to full species status. Our results also demonstrates that M. bororo did not show a genetic structuration of their populations and that their genetic diversity is lower than other species, highlighting the need to increase conservation and environment policy efforts to maintenance of this species. Finally, when we compare the morphological identification available on natural history collections with the identification obtained from molecular markers we found that the error rate resulting from the classification based on morphological characters was 26%. Nevertheless, we expect with the help of DNA from natural history collections will be possible to select non-convergent morphological characters for this group, allowing thus correct morphological identifications.
FAPESP: 2013/05944-7

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Tremblay, Annick. "Restauration et interprétation de l'oeuvre d'art : J. Purves Carter et la visibilité de la collection de peintures du Séminaire de Québec (1907-1912)". Master's thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/33984.

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Notre mémoire porte sur l'histoire de la pratique de la restauration à Québec au tournant du XIXe au XXe siècle par l'étude des peintures constituant la collection du Musée du Séminaire de Québec. Entre 1907 et 1912, l’artiste, connaisseur et restaurateur d’origine britannique J. Purves Carter est engagé par les prêtres du Séminaire de Québec pour examiner et restaurer leur collection de peintures. En étudiant de plus près ces deux actes posés sur l’œuvre, nous constatons qu’ils contribuent à sa transformation physique et intellectuelle. Cette double transformation se trouve au cœur de notre propos: la transformation physique, opérée par le nettoyage, les repeints, les retouches et la modification du support, change le statut de l’objet d’art, qui se voit par la suite réinterprété tant par le connaisseur que par son propriétaire. Le mémoire repose sur l’hypothèse que de telles modifications –physique par la restauration et intellectuelle par l’examen de l’œuvre et sa réattribution permettent à la collection de peintures de gagner en notoriété. Ce processus de requalification des œuvres participe également à la reconnaissance institutionnelle et publique de son propriétaire, l’Université Laval. Notre mémoire examine ce processus en trois chapitres: le premier détermine qui est J. Purves Carter et quel est son potentiel professionnel pour transformer une œuvre. Le second fait l’analyse critique de la transformation physique et intellectuelle des œuvres par études de cas. Le dernier fait état du gain de reconnaissance institutionnelle de l’Université Laval à l’échelle régionale, provinciale, nationale puis internationale. Cette étude révèle également la mise en notoriété professionnelle de la personne de Carter, qui est à l’origine de la requalification de la collection.

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Hellström, Vilma, e Sinéad Eriksson. "Web Data Collection to Assess Bias in Conservation Attention". Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302492.

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This research aims to detect and assess potential bias in the amount of attention different threatened species receive in the context of their conservation, and how this correlates to the species overall popularity and extinction risk, using data collected from the web. This bias was both examined in research and society in general. Extinction rates have increased significantly in the past decade due to human activity. This affects all ecosystems and is morally questionable. Using an API and the method of web scraping, data was collected from Twitter and Google Scholar respectively. The popularity of a species is defined by the number of occurrences the species have on these platforms. The conservation attention is determined by the number of occurrences in a conservation context. The data of the species conservation attention was compared to the extinction risk of the species, and the strength of the relationship between conservation attention and popularity was calculated. The results show that overall popularity seems to be more important for a species likelihood of receiving conservation attention, than its risk of extinction. Understanding that popularity is key for conservation attention is useful for successfully protecting threatened species. By either keeping this information in mind to counteract it or by taking advantage of it and reallocate resources to less popular species
Denna rapport undersöker om popularitet eller utrotningsgrad har betydelse för hur stor uppmärksamhet en utrotningshotad art får angående dess artbevarande, både inom forskning och bland allmänheten. Under de senaste decennierna har antalet arter som är utrotningshotade ökat drastiskt, som följd av männsklighetens framfart. Detta påverkar både ekosystemen och anses moraliskt tvivelaktigt. För att undersöka området samlades data in från Twitter och Google Scholar genom applikationsprogrammeringsgränssnitt (API) respektive data skrapning (data scraping). Populariteten av en art baserades på antalet förekomster den hade på plattformen. Hur mycket uppmärksamhet artens bevarande fick, bestämdes genom antalet förekomster på plattformen inom specifikt det sammanhanget. De två datamängderna jämfördes, dessutom räknades styrkan på relationen mellan uppmärksamheten inom artbevarande och populariteten ut. Resultatet påvisar att popularitet verkar viktigt för en art för att få uppmärksamhet inom även dess bevarande, medan risken för utrotning av en art inte är oviktigt för mängden uppmärksamhet. Denna insikt kan användas för att främja artbevarande för alla arter, exempelvis genom att aktivt motverka partiskheten. Eller genom att uttnyttja partiskheten för att öka intresset för artbevarande i stort med hjälp av de mest populära arterna, och på sätt öka donationerna och omfördela pengarna till även de mindre populära djuren.

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Nguyen, Duc Bach, Van Hai Tong, Van Hung Nguyen e Huu Ton Phan. "Collection, conservation, exploitation and development of rice genetic resource of Vietnam". Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-190749.

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Genetic resources are important for the development of every country and for humanity. Collection, conservation and reasonable utilization of genetic resource is required mission. Understanding the importance of genetic resource, especially rice germplasm, since 2001, Center for conservation and development of crop genetic resources (CCD-CGR) of Hanoi University of Agriculture (Vietnam National University of Agriculture) has been collected, conserved and evaluated rice germplasm from different provinces of Vietnam for breeding programs. So far, 1090 accessions of local rice of Vietnam have been collected. Evaluation of agronomic properties and screening of some important genes using DNA molecular markers have revealed that Vietnamese rice germplasm has high level diversity and containing important genes for quality and resistance for disease and pests. These genetic resources are potential materials for national breeding programs. Based on the collected germplasm, 3 new glutinous rice varieties have been successfully created with high yield and good quality. In addition, the degradation of local rice varieties is also a matter of concern. So far, 4 specialty rice varieties Deo Dang, Ble chau, Pu de and Khau dao have been successfully restored for the north provinces of Vietnam. The main results of this study are germplasms for rice breeding programs and new improved varieties that bring economic benefits to farmers and the country
Nguồn gene là tài nguyên sống còn của mỗi quốc gia và của toàn nhân loại. Vì vậy thu thập, bảo tồn, đánh giá và khai thác hợp lý nguồn tài nguyên này có ý nghĩa rất lớn. Nhận thức được tầm quan trọng của nguồn gen nhất là nguồn gen cây lúa, ngay từ đầu những năm 2000, Trung tâm bảo tồn và phát triển nguồn gene cây trồng thuộc Trường Đại học nông nghiệp, nay là Học Viện nông nghiệp Việt Nam đã tiến hành thu thập, lưu giữ, đánh giá và khai thác nguồn gene lúa. Kết quả đã thu thập, lưu giữ được 1090 mẫu giống lúa địa phương Việt Nam. Đánh giá đặc điểm nông sinh học và phát hiện một số gene quy định các tính trạng chất lượng và kháng sâu bệnh bằng chỉ thị phân tử DNA. Đây là nguồn gene quan trọng cho chọn tạo giống. Dựa vào nguồn gene thu thập được, cho đến nay, Trung tâm bảo tồn và phát triển nguồn gene cây trồng đã lai và chọn tạo được thành công 03 giống lúa nếp chất lượng cao. Ngoài ra, thoái hóa giống cũng là vấn đề đang được quan tâm. Cho đến nay 4 giống lúa đặc sản Đèo đàng, Ble châu, Pu đe và Khẩu dao đã được phục tráng và đưa vào sản xuất. Kết quả của những nghiên cứu này là ngân hàng các giống lúa làm nguồn gene để chọn tạo giống mới đem lại lợi ích kinh tế cho người nông dân và đất nước

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41

Raskin, Shaina. "Analysis and Ethical Conservation of a Roman Statue Head in the Scripps College Permanent Collection". Scholarship @ Claremont, 2015. http://scholarship.claremont.edu/scripps_theses/664.

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Unprovenanced and undocumented antiquities play a large roll in the international trade of antiquities, a billion dollar sector of the art market. The removal of these antiquities from their source countries creates many problems for the academic community and the standards put in place to eliminate illegal activity. An analysis of an ancient Roman statue head of Livia was used to demonstrate the usefulness of such an legally acquired undocumented antiquity. A visual analysis was first conducted on the Scripps Livia residing within the Scripps Permanent collection by creating comparisons to other known portraits of Livia. A chemical analysis was then conducted to continue verifying authenticity. With the use of a Scanning Electron Microscope, four samples removed from the sculpture were analyzed for elemental composition. Based on the data gathered from these analyses recommendations for new acquisition policies were created for the purpose of ethically researching and displaying the Scripps Livia.

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42

Ashburner, Geoffrey Roger. "Characterisation, collection and conservation of Cocos nucifera L. in the South Pacific /". Connect to thesis, 1994. http://eprints.unimelb.edu.au/archive/00000683.

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Guillemard, Denis. "La conservation préventive, une alternative à la restauration des objets ethnographiques". Paris 1, 1995. http://www.theses.fr/1995PA010640.

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Face à l'accumulation des biens culturels et à l'engouement pour le patrimoine, de nouvelles pratiques de conservation doivent être préconisées. À partir de l'analyse de la restauration et des conséquences des traitements sur les biens culturels, une nouvelle approche de la conservation est proposée. La thèse propose de substituer à la vision traditionnelle de la restauration la vision globale de la prévention plus à même de comprendre la dégradation et d'en limiter les effets de façon efficace et durable
To face up to the increasing collections of artefacts and the actual enthousiasm for heritage, new proceeding in conservation must be recommended. The study of ancient restoration and of its consequences upon objects drive the authors to propose a new approach of conservation. Traditionnal behaviours runing conservation-restoration are replaced by prevention as a global approach more able to analyse the causes of degradation and to ensure effective and durable care of collections

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Nguyen, Duc Bach, Van Hai Tong, Van Hung Nguyen e Huu Ton Phan. "Collection, conservation, exploitation and development of rice genetic resource of Vietnam: Short communication". Technische Universität Dresden, 2014. https://tud.qucosa.de/id/qucosa%3A29104.

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Genetic resources are important for the development of every country and for humanity. Collection, conservation and reasonable utilization of genetic resource is required mission. Understanding the importance of genetic resource, especially rice germplasm, since 2001, Center for conservation and development of crop genetic resources (CCD-CGR) of Hanoi University of Agriculture (Vietnam National University of Agriculture) has been collected, conserved and evaluated rice germplasm from different provinces of Vietnam for breeding programs. So far, 1090 accessions of local rice of Vietnam have been collected. Evaluation of agronomic properties and screening of some important genes using DNA molecular markers have revealed that Vietnamese rice germplasm has high level diversity and containing important genes for quality and resistance for disease and pests. These genetic resources are potential materials for national breeding programs. Based on the collected germplasm, 3 new glutinous rice varieties have been successfully created with high yield and good quality. In addition, the degradation of local rice varieties is also a matter of concern. So far, 4 specialty rice varieties Deo Dang, Ble chau, Pu de and Khau dao have been successfully restored for the north provinces of Vietnam. The main results of this study are germplasms for rice breeding programs and new improved varieties that bring economic benefits to farmers and the country.
Nguồn gene là tài nguyên sống còn của mỗi quốc gia và của toàn nhân loại. Vì vậy thu thập, bảo tồn, đánh giá và khai thác hợp lý nguồn tài nguyên này có ý nghĩa rất lớn. Nhận thức được tầm quan trọng của nguồn gen nhất là nguồn gen cây lúa, ngay từ đầu những năm 2000, Trung tâm bảo tồn và phát triển nguồn gene cây trồng thuộc Trường Đại học nông nghiệp, nay là Học Viện nông nghiệp Việt Nam đã tiến hành thu thập, lưu giữ, đánh giá và khai thác nguồn gene lúa. Kết quả đã thu thập, lưu giữ được 1090 mẫu giống lúa địa phương Việt Nam. Đánh giá đặc điểm nông sinh học và phát hiện một số gene quy định các tính trạng chất lượng và kháng sâu bệnh bằng chỉ thị phân tử DNA. Đây là nguồn gene quan trọng cho chọn tạo giống. Dựa vào nguồn gene thu thập được, cho đến nay, Trung tâm bảo tồn và phát triển nguồn gene cây trồng đã lai và chọn tạo được thành công 03 giống lúa nếp chất lượng cao. Ngoài ra, thoái hóa giống cũng là vấn đề đang được quan tâm. Cho đến nay 4 giống lúa đặc sản Đèo đàng, Ble châu, Pu đe và Khẩu dao đã được phục tráng và đưa vào sản xuất. Kết quả của những nghiên cứu này là ngân hàng các giống lúa làm nguồn gene để chọn tạo giống mới đem lại lợi ích kinh tế cho người nông dân và đất nước.

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45

Niccoli, Morgan D. "Are Occupancy Models Feasible Alternatives to Collecting Breeding Data?" W&M ScholarWorks, 2013. https://scholarworks.wm.edu/etd/1539626940.

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46

Huang, Ke Colin. "ELECTRORHEOLOGY FOR ENERGY PRODUCTION AND CONSERVATION". Diss., Temple University Libraries, 2010. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/64954.

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Physics
Ph.D.
Recently, based on the physics of viscosity, we developed a new technology, which utilizes electric or magnetic fields to change the rheology of complex fluids to reduce the viscosity, while keeping the temperature unchanged. The method is universal and applicable to all complex fluids with suspended particles of nano-meter, sub-micrometer, or micrometer size. Completely different from the traditional viscosity reduction method, raising the temperature, this technology is energy-efficient, as it only requires small amount of energy to aggregate the suspended particles. In this thesis, we will first discuss this new technology in detail, both in theory and practice. Then, we will report applications of our technology to energy science research. Presently, 80% of all energy sources are liquid fuels. The viscosity of liquid fuels plays an important role in energy production and energy conservation. With an electric field, we can reduce the viscosity of asphalt-based crude oil. This is important and useful for heavy crude oil and off-shore crude oil production and transportation. Especially, since there is no practical way to raise the temperature of crude oil inside the deepwater pipelines, our technology may play a key role in future off-shore crude oil production. Electrorehology can also be used to reduce the viscosity of refinery fuels, such as diesel fuel and gasoline. When we apply this technology to fuel injection, the fuel droplets in the fuel atomization become smaller, leading to faster combustion in the engine chambers. As the fuel efficiency of internal combustion engines depends on the combustion speed and timing, the fast combustion produces much higher fuel efficiency. Therefore, adding our technology on existing engines improves the engine efficiency significantly. A theoretical model for the engine combustion, which explains how fast combustion improves the engine efficiency, is also presented in the thesis.
Temple University--Theses

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47

Koch, Jonathan B. "The decline and conservation status of North American bumble bees". DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/1015.

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Several reports of North American bumble bee (Bombus Latreille) decline have been documented across the continent, but no study has fully assessed the geographic scope of decline. In this study I discuss the importance of Natural History Collections (NHC) in estimating historic bumble bee distributions and abundances, as well as in informing current surveys. To estimate changes in distribution and relative abundance I compare historic data assembled from a >73,000 specimen database with a contemporary 3-year survey of North American bumble bees across 382 locations in the contiguous U.S.A. Based on my results, four historically abundant bumble bees, B. affinis, B. occidentalis, B. pensylvanicus and B. terricola, have declined by 72 - 96% relative abundance across their native distribution, while B. bifarius, B. bimaculatus, B. impatiens, and B. vosnesenskii appear to be relatively stable. Finally, I provide some notes on the distribution, abundance, and frequency of Nosema bombi infections in Alaskan B. occidentalis.

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48

Rodriguez, Laura. "Savoir agir avec la nature : entre écologie scientifique, valeurs collectives et conceptions du monde". Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTG069/document.

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Dans le contexte actuel de crise écologique, les actions sur la nature sont le plus souvent pensées comme s’appuyant sur des savoirs scientifiques objectifs et neutres qu’il suffirait de mobiliser. Dans cette thèse, je propose d’explorer l’articulation entre savoirs et actions, en examinant les intrications entre savoirs écologiques, valeurs collectives et conceptions de la nature. J’étudie en particulier les discours relatifs à trois types d’action (conservation en réserve naturelle, évaluation d’impact environnemental et restauration écologique) en m’appuyant sur un terrain d’étude où elles s’incarnent, la plaine de Crau (Bouches-du-Rhône, France). Tout d’abord, j’examine en quoi les différents types de savoirs écologiques mobilisés lors des actions sur la nature sont liés, en plus des contraintes internes aux formes d’action environnementale et de l’applicabilité des connaissances sur le terrain, aux savoirs de référence et engagements des acteurs, ainsi qu’aux trajectoires historiques de ces savoirs et de ces actions. Ensuite, j’explicite la manière dont les valeurs de scientificité véhiculées par la mobilisation de ces savoirs dans le but d’augmenter la crédibilité de l’action entrent en tension avec d’autres valeurs présentes dans les actions environnementales, notamment l’exigence de légitimité. Enfin, j’explore la façon dont ces savoirs se fondent sur certains partis-pris ontologiques concernant nos relations avec les milieux naturels, et qui conditionnent nos manières d’agir. À partir de ces éclairages, je suggère quelques pistes pour savoir agir avec la nature face aux enjeux écologiques actuels
In the current regime of ecological crisis, one generally expects actions and decisions about environmental issues to be enlighten by scientific knowledge. The aim of this thesis is to challenge this view by investigating how ecological knowledge and actions on nature are linked. I propose to study the interweaving between ecological knowledge, collective values and conceptions of nature in documents related to three types of actions (conservation in a nature reserve, environmental impact assessment, and ecological restoration). I lean on a field study where these actions are embodied, the plain of Crau (Bouches-du-Rhône, France). First, I examine how different types of ecological knowledge are translated in (and are influenced in return by) specific actions. I show that, in addition to the practical constraints of any action, this mutual relation is shaped by scientific cultural dynamics, as well as historical trajectories of these knowledges and actions. Then, I explain how the need to guarantee both credibility and legitimacy create an inherent tension in environmental actions. Finally, I explore how knowledge is based on preconceptions about our relationships with nature, and lead to specific ways of acting. From these insights, I suggest some trails to know and act differently with nature in the context of current ecological issues

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49

Graham, Tracy Ann. "A Preventive Conservation Guidebook". University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1248180765.

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50

Pannozzo, Pamela. "Florida Local Government Conservation Planning: Variability, Drivers, and Policy Implications". Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5998.

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This study examined the quality of Florida county government conservation planning. To assess conservation planning quality, a theoretical model of conservation planning as prescribed by the conservation science literature was first developed. A plan evaluation coding protocol was applied to local comprehensive plan Conservation Elements to determine the extent to which county-level conservation planning met the theoretical model. A high degree of variability in conservation planning quality was found. Highest quality conservation planning occurred in the Gulf coast counties of southwest Florida. Lowest conservation planning quality occurred in the Florida Panhandle counties. The quality of conservation planning of coastal counties was significantly higher than that of inland counties. Significant regional differences were also found, where conservation planning quality in South Florida counties was significantly higher than conservation planning quality in Panhandle counties. Geographic differences in conservation planning quality were likely attributable to significant differences in socioeconomic variables among counties, including differences in education, wealth, and urbanization. Multiple regression analysis using an information theoretic approach was employed to develop a predictive model of conservation planning quality of Florida local governments. The two most plausible predictors in the model were education level of the public and total resources. Local and global spatial autocorrelation analysis were next applied to county conservation planning scores to investigate spatial patterns of conservation planning quality, which were found to be related to the policy process of diffusion. Lastly, current local government conservation planning policy was analyzed for effectiveness and policy recommendations were made. Improving the effectiveness of local conservation planning will require changes in statutory provisions of the state Florida Forever and Growth Management statutes. It will also require a greater commitment on the part of the state of Florida to protect the state's biological resources over the long term.
Ph.D.
Doctorate
Biology
Sciences
Conservation Biology; Applied Conservation Biology

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