Das Dokument beschreibt in kurzer Form das Sicherheitskonzept im Archivsystem MONARCH.Die archivierten Dokumente werden durch verschiedene Hash-Algorithmen und digitale Signaturen vor nachträglichen Veränderungen geschützt. Dadurch kann dem Benutzer von MONARCH die Unversehrtheit der archivierten Publikationen garantiert werden.

In degree work were analyzed the constitutional status of institute of the monarch in the European countries.

Species are experiencing shifts in their phenology (i.e., seasonal timing of recurring biological events) due to climate change, leading to disruptions in the relative timing of interacting species. These shifts can be detrimental to the fitness of the consumer (e.g., herbivore) in the interaction. In its larval form, the monarch butterfly (Danaus plexippus) is a specialist herbivore that feeds on milkweed plants (Asclepias spp.). Given that plants generally experience seasonal declines in quality, it is hypothesized that if climate change disrupts the timing of the larval stage relative to the availability of younger milkweed plants, monarch performance will be negatively affected. In this thesis, I explore the potential for negative consequences for the eastern monarch population due to potential shifts in the timing of their interaction with milkweed—due to phenological shifts in either species. I used field surveys around Ottawa, ON to determine monarch oviposition preference on common milkweed (Asclepias syriaca) plants and the seasonal availability of their preferred plants. To determine the potential consequences for monarch fitness where females oviposit on non-preferred plants, I conducted a field experiment to assess the effect of milkweed size on monarch larval performance. Based on field surveys, females preferentially oviposited on smaller milkweed plants in earlier developmental stages with low levels of discolouration. Plants in early developmental stages were consistently available in large proportion over the summer season. These results suggest that even if the relative timing of the monarch-milkweed interaction in the eastern population is shifted due to climate change, there will likely be suitable milkweed plants available for oviposition throughout the breeding season, which could act as a buffer to disruptions in the relative timing of the interaction. I found that bigger plants exuded more latex and had thicker leaves than smaller plants. However, larval performance was unaffected by these plant quality differences. While it is unclear how the relative timing of the monarch-milkweed interaction will change in the future, my results suggest that shifts in the relative timing of their interaction within the breeding season are unlikely to have negative consequences for larval performance in eastern Ontario. Future studies should determine how the relative timing of the interaction will change in the region and explore how climate change will affect the quality of milkweed plants.

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Butterfly weed (Asclepias tuberosa) is a primary larval food source for the monarch butterfly (Danaus plexippus). Planting more butterfly weed may stimulate declining monarch populations. To that end, a habitat suitability map was created for Mississippi in GIS using soil pH, soil texture, and land cover. Herbarium data were derived from the Southeast Regional Network of Expertise and Collections (SERNEC) database. Environmental data were from the USDA National Resource Conservation Service geospatial data gateway. Frequency analysis was used to assign scores to environmental variables of SERNEC occurrences using a suitability index. Global positioning systems (GPS) locations of butterfly weed were collected to validate the model. The most suitable model with 78.9% of GPS points in medium to high suitability was a weighted sum overlay with land cover 50%, soil pH 25%, and soil texture 25%. The suitability map may enable conservationists to identify suitable sites for butterfly weed in Mississippi.

My final thesis, based on study of primary and secondary sources, is focused on the idea of sovereign around 1300 AD. Old-Czech poem Alexandreida and German version Alexander of Ulrich von Etzenbach are used as primary repository of information. Thesis follows both of them and in their comparison shows, how the idea was formulated. Final thesis deals also with works of historians, literary historians and German studies related to its topic. The goal is not an linguistic analysis but to evaluate the poems as an historiographic source, on which we can study medieval notions of rulers and their role in society. Second main task for this final thesis is to reconstruct niveau of bohemian court surrounding King of Bohemia at the end of 13th century, where the poems were originally written. In the end, thesis describes so called "court culture" in the relation to both of Alexandrian poems and their influence in bohemia society.

Gemeinsamer Workshop von Universitaetsrechenzentrum und Professur Rechnernetze und verteilte Systeme (Fakultaet fuer Informatik) der TU Chemnitz. Workshop-Thema: Infrastruktur der ¨Digitalen Universitaet¨ Der Vortrag beschaeftigt sich mit den Moeglichkeiten die XML und RDF fuer das digitale Publizieren und Archivieren bieten.

Gemeinsamer Workshop von Universitaetsrechenzentrum und Professur Rechnernetze und verteilte Systeme (Fakultaet fuer Informatik) der TU Chemnitz. Workshop-Thema: Infrastruktur der ¨Digitalen Universitaet¨ Aufbauend auf dem aktuellen Stand des Systems MONARCH sowie vorliegenden praktischen Erfahrungen werden Vorschlaege fuer die Weiterentwicklung diskutiert. Es werden drei unterschiedliche Sichtweisen vertreten - Autor, Nutzer sowie Betreiber.

Im Rahmen der vorliegenden Studienarbeit sollen der Stand und die Praktikabilitaet von RDF/XML untersucht und eine auf XML/RDF basierende Technologie zum Metadaten-Handling in MONARCH entwickelt werden. Weiterhin sollen auf der Grundlage von RDF/XML neue Features fuer MONARCH, speziell aggregierte Dokumente, entwickelt werden.