eSciDoc Infrastructure: a Fedora-based e-Research Framework

4th International Conference on Open RepositoriesThis presentation was part of the session : Fedora User Group PresentationsDate: 2009-05-20 03:30 PM – 05:00 PMeSciDoc is the open-source e-Research environment jointly created by the German Max Planck Society and FIZ Karlsruhe. It consists of a generic set of basic services ("eSciDoc Infrastructure") and various applications built on top of this infrastructure ("eSciDoc Solutions"). This presentation will focus on the eSciDoc Infrastructure, highlight the differences to the underlying Fedora repository, and demonstrate its powerful und application-centric programming model. In the end of 2008, we released version 1.0 of the eSciDoc Infrastructure. Digital Repositories undergo yet again a substantial change of paradigm. While they started several years ago with a library perspective, mainly focusing on publications, they are now becoming more and more a commodity tool for the workaday life of researchers. Quite often the repository itself is just a background service, providing storage, persistent identification, preservation, and discovery of the content. It is hidden from the end-user by means of specialized applications or services. Fedora's approach of providing a repository architecture rather than an end-user tool accommodates well to this evolution. eSciDoc, from the start of the project nearly five years ago, has emphasized this design pattern by separating backend services (eSciDoc Infrastructure) and front-end applications (eSciDoc Solutions)

A Closer Look at Fedora's Ingest Performance

4th International Conference on Open RepositoriesThis presentation was part of the session : Fedora User Group PresentationsDate: 2009-05-21 10:30 AM – 12:00 PMIt is of paramount importance for large-scale applications that Fedora can handle huge amounts of data efficiently. While Fedora is generally known to be stable and reliable, there appears to be a lack of data and experience regarding large-scale installations and the performance implications thereof. FIZ Karlsruhe is currently working on several projects with large-scale Fedora repositories holding several million complex objects. We conducted extensive performance and scalability tests with the current Fedora software (mostly version 3.0), focusing on ingest operations. Our goal was to prove that Fedora actually scales well enough for our use cases. Our test runs provided us with data which helped us identifying limits and constraints, and devising some optimization recommendations

Eine wissenschaftliche Informations-, Kommunikations- und Publikationsplattform für die Forschung (eSciDoc) : Schlussbericht

[no abstract available

Das RADAR Projekt: Datenarchivierung und -publikation als Dienstleistung - disziplinübergreifend, nachhaltig, kostendeckend

Die Nachvollziehbarkeit und Reproduzierbarkeit wissenschaftlicher Erkenntnisse basiert zunehmend auf digitalen Daten. Deren Publikation, Verfügbarkeit und Nachnutzung muss im Rahmen guter wissenschaftlicher Praxis gewährleistet werden. Das Projekt RADAR geht diese Herausforderung durch die Etablierung einer generischen Infrastruktur für die Archivierung und Publikation von Forschungsdaten an. Dafür vereinen fünf Projektpartner aus den Informations- und Naturwissenschaften (FIZ Karlsruhe, TIB in Hannover, KIT/SCC, LMU München und IPB Halle) ihre Kompetenzen. Durch enge Kooperation mit Wissenschaftler/innen, Datenzentren, Fachgesellschaften und Verlagen wird eine bedarfsgerechte Entwicklung der Infrastruktur sichergestellt. RADAR richtet sich an zwei Zielgruppen: Projekte (d. h. Forscher/innen) und Institutionen. Es verfolgt dabei einen zweistufigen Ansatz: ein disziplinübergreifendes Einstiegsangebot zur formatunabhängigen Datenarchivierung mit minimalem Metadatensatz und ein erweitertes Angebot mit integrierter Datenpublikation. Der thematische Schwerpunkt  liegt bei den wissenschaftlichen Disziplinen  im „long tail of science“, in denen Forschungsdateninfrastrukturen meist noch fehlen. RADAR erlaubt eine temporäre oder – im Falle einer Datenpublikation – eine zeitlich unbegrenzte Datenarchivierung. Das angestrebte Geschäftsmodell zielt auf einen sich selbst tragenden Betrieb mit einer Kombination aus Einmalzahlungen und institutionellen Angeboten ab. RADAR ist als Baustein der internationalen Informationsinfrastruktur geplant, der sich über Schnittstellen auch in weitere Datenmanagement-Dienste Dritter integrieren lässt.The transparency and reproducibility of scientific results are increasingly based on digital data. In compliance with good scientific practice data need to be published, accessible, and re-usable. The RADAR project aims to establish a generic infrastructure, which will provide archiving and publication services for research data. Five partners from the information and natural sciences (FIZ Karlsruhe, TIB in Hanover, KIT/SCC, LMU Munich, and IPB Halle) have joined forces to address the challenges involved. By cooperating closely with researchers, data centers, scientific societies, as well as publishers, the partners ensure that the resulting infrastructure is designed to meet the requirements. Target groups are projects (e.g., researchers) and institutions (e.g., libraries). Both groups are offered a two-stage approach with a cross-discipline starter package for format-independent data preservation with a minimum metadata set, and an enhanced package for preserving data with integrated data publication. RADAR focuses on the "long tail of science", which often lacks sufficient research data infrastructure. The repository will offer a temporary or - in case of data publication - long-term preservation of research data. A self-supporting business model will provide one-off payments and institutional subscription services. As such, RADAR is intended to become an integral part of the international information infrastructure which also allows the integration of third-party services

RADAR – Repositorium und Publikations-Service für Forschungsdaten

[no abstract available

Caesarean Section Frequency among Immigrants, Second- and Third-Generation Women, and Non-Immigrants: Prospective Study in Berlin/Germany

David M, Borde T, Brenne S, Henrich W, Breckenkamp J, Razum O. Caesarean Section Frequency among Immigrants, Second- and Third-Generation Women, and Non-Immigrants: Prospective Study in Berlin/Germany. PLoS ONE. 2015;10(5): e0127489.Objective The frequency of caesarean section delivery varies between countries and social groups. Among other factors, it is determined by the quality of obstetrics care. Rates of elective (planned) and emergency (in-labor) caesareans may also vary between immigrants (first generation), their offspring (second- and third-generation women), and non-immigrants because of access and language barriers. Other important points to be considered are whether caesarean section indications and the neonatal outcomes differ in babies delivered by caesarean between immigrants, their offspring, and non-immigrants. Methods A standardized interview on admission to delivery wards at three Berlin obstetric hospitals was performed in a 12-month period in 2011/2012. Questions on socio-demographic and care aspects and on migration (immigrated herself vs. second- and third-generation women vs. non-immigrant) and acculturation status were included. Data was linked with information from the expectant mothers' antenatal records and with perinatal data routinely documented in the hospital. Regression modeling was used to adjust for age, parity and socio-economic status. Results The caesarean section rates for immigrants, second- and third-generation women, and non-immigrant women were similar. Neither indications for caesarean section delivery nor neonatal outcomes showed statistically significant differences. The only difference found was a somewhat higher rate of crash caesarean sections per 100 births among first generation immigrants compared to non-immigrants. Conclusion Unlike earlier German studies and current studies from other European countries, this study did not find an increased rate of caesarean sections among immigrants, as well as second- and third-generation women, with the possible exception of a small high-risk group. This indicates an equally high quality of perinatal care for women with and without a migration history

Knowledge graph enabled curation and exploration of Nuremberg’s city heritage

An important part in European cultural identity relies on European cities and in particular on their histories and cultural heritage. Nuremberg, the home of important artists such as Albrecht Dürer and Hans Sachs developed into the epitome of German and European culture already during the Middle Ages. Throughout history, the city experienced a number of transformations, especially with its almost complete destruction during World War 2. This position paper presents TRANSRAZ, a project with the goal to recreate Nuremberg by means of an interactive 3D tool to explore the city’s architecture and culture ranging from the 17th to the 21st century. The goal of this position paper is to discuss the ongoing work of connecting heterogeneous historical data from various sources previously hidden in archives to the 3D model using knowledge graphs for a scientifically accurate interactive exploration on the Web

Lokal betrieben, remote gepflegt – Software für ein Datenrepositorium in Kooperation implementieren

Die Universität Konstanz deckt ihren Bedarf nach einem institutionellen Forschungsdatenrepositorium mit der von FIZ Karlsruhe angebotenen Lösung „RADAR Local“. Als Alternative zu einer Eigenentwicklung wurde das Datenrepositorium als hybrides Modell mit Repositorien-Software und Archivierung auf lokaler Infrastruktur implementiert. Dabei stellt FIZ Karlsruhe die etablierte Repositorien-Software RADAR zur Verfügung, wartet und betreibt sie aus der Ferne und passt sie nach Kundenwunsch an. Um die parallele Installation und Pflege der RADAR-Software auf mehreren lokalen Instanzen effizient bewältigen zu können, hat FIZ Karlsruhe vorab den Automatisierungsgrad der betroffenen Prozesse in der Software-Entwicklung, in der Systemkonfiguration und im Deployment erhöht. Dies wurde durch den Einsatz von Container-Virtualisierung wie Docker und Docker Swarm sowie mit Orchestrierungswerkzeugen wie Ansible erreicht. Der zeitliche Aufwand und der personelle Ressourcenbedarf reduzieren sich dadurch für die Universität Konstanz und als Ergebnis erhält sie ein gepflegtes Repositorium auf dem aktuellen Stand der Technik. Gleichzeitig erfordert diese Betriebsvariante eine intensive Auseinandersetzung mit dem jeweiligen Geschäftsmodell und den technischen Rahmenbedingungen des Anbieters, eine genaue Kostenkalkulation sowie möglicherweise Kompromisse oder Abstriche bei individuellen Wünschen

Inanspruchnahme von Notaufnahmen durch sog. Mehrfachnutzer/-innen: Ergebnisse einer prospektiven Studie unter besonderer Berücksichtigung des Migrationsstatus

Objectives: Can we identify predictive factors for the group of so-called multiple users (MU; 4 and more uses of an emergency department [ED] in the past 12 months)? Are people with a migration background more likely to be classified in the MU group? Methodology: Included were consecutive patients who visited three EDs in Berlin from July 2017 to July 2018. Using a questionnaire, diseases, reasons for visiting the ED and socioeconomic factors were recorded. Comparisons between migrants (1st generation), their descendants (2nd generation) and nonmigrants were assessed using logistic regression. Results: A total of 2339 patients were included in the evaluation (repeat rate 56%), of which 901 had a migration background. Young women (<30 years), chronically ill, pregnant women, patients with severe complaints and people with (self-assessed) moderate and poor health quality as well as those without medical referral had a greater chance of multiple use of ED. Conclusion: MU burden the already increasing patient volume of ED. However, they represent a heterogeneous group of patients, among whom people with a migration background are not common. Further research is warranted to better understand the factors that lead to frequent use and to develop effective strategies to address the complex health needs of MUs