Eine historische Bibliothek auf dem Weg in die Zukunft: Die Umbau- und Modernisierungsmaßnahmen in der Bibliothek des Museums für Hamburgische Geschichte

Als der erste Museumsdirektor des Museums für Hamburgische Geschichte (MHG) Otto Lauffer die Aufgabe übernahm, die Sammlung Hamburgischer Altertümer in ein professionelles Museum zu überführen, stand bereits fest, dass zu der Sammlung ein begleitender Bestand an Fachliteratur gehören würde. Und so plante der Architekt Fritz Schumacher, als er das Museumsgebäude konzipierte, von Anfang an Räumlichkeiten für die Bibliothek ein. Das ist jetzt mehr als 100 Jahre her und seitdem hat sich in der Welt der Bibliotheken und Informationen viel getan. Diese Veränderungen gingen auch an der Museumsbibliothek nicht vorbei, die sich mittlerweile völlig anderen Herausforderungen gegenübersieht als zu Lauffers und Schumachers Zeiten. Von den im Februar 2023 groß angelegten Umbau- und Modernisierungsmaßnahmen im Museum ist auch die Bibliothek nicht ausgenommen. Eine der größten Veränderungen soll dabei die Entstehung eines „Studien- und Informationszentrums“ darstellen. Im Zusammenhang mit dessen Planung drängt sich eine Frage auf, die derzeit die gesamte Bibliothekscommunity umtreibt: Welche Bedeutung werden Bibliotheken als reale, physische Orte in der zunehmend digitalen Informationsgesellschaft zukünftig noch spielen? Dieser Beitrag ist im Rahmen des Schreibprojekts zum Praktikum im Studiengang Bibliotheks- und Informationsmanagement an der HAW Hamburg verfasst worden

Cold acclimation has a differential effect on leaf vascular bundle structure and carbon export rates in natural Arabidopsis accessions originating from southern and northern Europe

Acclimation to low but non‐freezing temperature represents an ecologically important process for Arabidopsis thaliana but also for many other plant species from temperate regions. Cold acclimation comprises and affects numerous molecular and physiological processes and the maintenance of sugar supply of sink tissue by photosynthetically active source tissue is essential for plant survival. Here, changes in vascular bundle (VB) structure at the leaf petiole were analysed together with sucrose exudation rates before and after cold acclimation. Six natural Arabidopsis accessions originating from southern and northern Europe were compared. Photosynthetic efficiency, that is, maximum and effective quantum yield of photosystem II, revealed a significant effect of environmental condition. Only for northern accessions was a highly significant negative correlation observed between leaf sucrose exudation rates, xylem, and petiole cross‐sectional areas. Furthermore, only for northern accessions was a significant increase of VB and leaf petiole cross‐sectional area observed during cold acclimation. In contrast, variance of cross‐sectional areas of cold acclimated southern accessions was strongly reduced compared to control plants, while mean areas remained similar under both conditions. In summary, these findings suggest that natural Arabidopsis accessions from northern Europe significantly adjust sink strength and leaf VB structure to maintain plant growth and photosynthesis under low temperature

Spiral me to the core: Getting a visual grasp on text corpora through clusters and keywords

The amount of literature within a research domain is ever growing, thus making it difficult to stay on top of everything. Getting a grasp on the important topics of and areas within a domain or even knowing where to start is often tough and tedious. This paper therefore presents a visualization, that is a cluster spiral, that offers a fast but plain and simple way of exploring the content of large text collections

Getting a grasp on tag collections by visualising tag clusters based on higher-order co-occurrences

Tagging learning resources in repositories or web portals offers a way to meaningfully describe these resources. The more tags there are, however, the more difficult it is to find one's way around the repository, especially when they are user-generated free-text tags. This paper therefore presents a visualisation of tag clusters based on higher-order co-occurrences that allows users of such repositories a plain but simple way of exploring them in an intuitive manner

Peeking into the black box: visualising learning activities

Learning analytics has emerged as the discipline that fosters the learning process based on monitored data. As learning is a complex process that is not limited to a single environment, it benefits from a holistic approach where events in different contexts and settings are observed and combined. This work proposes an approach to increase this coverage. Detailed information is obtained by combining logs from a LMS and events recorded with a virtual machine given to the students. A set of visualisations is then derived from the collected events showing previously hidden aspects of an experience that can be shown to the teaching staff for their consideration. The visualisations presented focus on different learning outcomes, such as self learning, use of industrial tools, time management, information retrieval, collaboration, etc. Depending on the information to convey, different types of visualisations are considered, ranging from graphs to starbusts and from scatter plots to heatmaps.Work partially funded by the projects: Adaptation of learning scenarios in the .LRN platform based on Contextualized Attention Metadata (CAM) (DE2009-0051), Learn3 (\Plan Nacional de I+D+I" TIN2008-05163/TSI), EEE (\Plan Nacional de I+D+I" TIN 2011-28308-C03-01), and Emadrid: Investigación y desarrollo de tecnologías para el e-learning en la Comunidad de Madrid (S2009/TIC-1650).Publicad

A novel approach towards skill-based search and services of Open Educational Resources

Ha, K.-H., Niemann, K., Schwertel, U., Holtkamp, P., Pirkkalainen, H., Börner, D. et al (2011). A novel approach towards skill-based search and services of Open Educational Resources. In E. Garcia-Barriocanal, A. Öztürk, & M. C. Okur (Eds.), Metadata and Semantics Research: 5th International Conference MTSR 2011 (pp. 312-323), Izmir, Turkey, October 12-14, 2011. Springer.Open educational resources (OER) have a high potential to address the growing need for training materials in management education and training. Today, a high number of OER in management are already available in a large number of repositories. However, users face barriers as they have to search repository by repository with different interfaces to retrieve the appropriate learning content. In addition, the use of search criteria related to skills, such as learning objectives and skill-levels is not generally supported. The European co-funded project OpenScout addresses these barriers by intelligently connecting leading European OER repositories and providing federated, skillbased search and retrieval web services. On top of this content federation the project supports users with easy-to-apply tools that will accelerate the (re-) use of open content