Hochschule Bonn-Rhein-Sieg
Publikationsserver der Hochschule Bonn-Rhein-Sieg - pub H-BRSNot a member yet
7939 research outputs found
Sort by
Research–Practice–Collaborations in International Sustainable Development and Knowledge Production: Reflections from a Political-Economic Perspective
Get PDFThe cooperation between researchers and practitioners during the different stages of the research process is promoted as it can be of benefit to both society and research supporting processes of ‘transformation’. While acknowledging the important potential of research–practice–collaborations (RPCs), this paper reflects on RPCs from a political-economic perspective to also address potential unintended adverse effects on knowledge generation due to divergent interests, incomplete information or the unequal distribution of resources. Asymmetries between actors may induce distorted and biased knowledge and even help produce or exacerbate existing inequalities. Potential merits and limitations of RPCs, therefore, need to be gauged. Taking RPCs seriously requires paying attention to these possible tensions—both in general and with respect to international development research, in particular: On the one hand, there are attempts to contribute to societal change and ethical concerns of equity at the heart of international development research, and on the other hand, there is the relative risk of encountering asymmetries more likely.La coopération entre chercheurs et praticiens au cours des différentes étapes du processus de recherche est encouragée car elle peut être bénéfique à la fois pour la société et pour la recherche qui appuie les processus de « transformation». Tout en reconnaissant l’important potentiel que représente la collaboration entre recherche et pratique (CRP), cet article adopte un point de vue politico-économique dans sa réflexion sur la CRP afin de prendre également en compte les potentiels effets négatifs sur la création de connaissances que peuvent avoir des intérêts divergents, des informations incomplètes ou une répartition inégale des ressources. Les asymétries entre acteurs peuvent induire des connaissances déformées et biaisées et peuvent même contribuer à produire ou exacerber des inégalités existantes. Il convient donc d'évaluer les mérites et les limites potentiels de la CRP. Si l’on souhaite prendre la CRP au sérieux, il convient d’être attentif à ces tensions éventuelles – de façon générale ainsi que dans la recherche qui porte sur le développement international, en particulier: d'un côté, il y a les tentatives de contribuer au changement sociétal et les préoccupations d’ordre éthique liées à l'équité, qui se trouvent au cœur de la recherche sur le développement international; d'un autre, il y a le risque relatif, qui devient plus probable, de se trouver face à des asymétries
Mebendazole's Conformational Space and Its Predicted Binding to Human Heat-Shock Protein 90
No full textRobust Identification and Segmentation of the Outer Skin Layers in Volumetric Fingerprint Data
No full textDespite the long history of fingerprint biometrics and its use to authenticate individuals, there are still some unsolved challenges with fingerprint acquisition and presentation attack detection (PAD). Currently available commercial fingerprint capture devices struggle with non-ideal skin conditions, including soft skin in infants. They are also susceptible to presentation attacks, which limits their applicability in unsupervised scenarios such as border control. Optical coherence tomography (OCT) could be a promising solution to these problems. In this work, we propose a digital signal processing chain for segmenting two complementary fingerprints from the same OCT fingertip scan: One fingerprint is captured as usual from the epidermis (“outer fingerprint”), whereas the other is taken from inside the skin, at the junction between the epidermis and the underlying dermis (“inner fingerprint”). The resulting 3D fingerprints are then converted to a conventional 2D grayscale representation from which minutiae points can be extracted using existing methods. Our approach is device-independent and has been proven to work with two different time domain OCT scanners. Using efficient GPGPU computing, it took less than a second to process an entire gigabyte of OCT data. To validate the results, we captured OCT fingerprints of 130 individual fingers and compared them with conventional 2D fingerprints of the same fingers. We found that both the outer and inner OCT fingerprints were backward compatible with conventional 2D fingerprints, with the inner fingerprint generally being less damaged and, therefore, more reliable
Einführung von Public Cloud Services – Herausforderungen und Lösungsansätze aus der Praxis
No full textRalf Adelmann: Listen und Rankings: Über Taxonomien des Populären
Get PDFBielefeld: transcript 2021 (Edition Medienwissenschaft, Bd.194), 206 S., ISBN 9783837643114, EUR 30,- (OA
Jahresbericht 2021
No full textDer neue Jahresberichte des Instituts für IT-Service (ITS) für das Jahr 2021
Sensory Monitoring of Drop Hammer Experiments with Multivariate Statistics
No full textA precise characterization of substances is essential for the safe handling of explosives. One parameter regularly characterized is the impact sensitivity. This is typically determined using a drop hammer. However, the results can vary depending on the test method and even the operator, and it is not possible to distinguish the type of decomposition such as detonation and deflagration. This study monitors the reaction progress by constructing a drop hammer to measure the decomposition reaction of four different primary explosives (tetrazene, silver azide, lead azide, lead styphnate) in order to determine the reproducibility of this method. Additionally, further possible evaluation methods are explored to improve on the current binary statistical analysis. To determine whether classification was possible based on extracted features, the responses of equipped sensor arrays, which measure and monitor the reactions, were studied and evaluated. Features were extracted from this data and were evaluated using multivariate methods such as principal component analysis (PCA) and linear discriminant analysis (LDA). The results indicate that although the measurements show substance specific trends, they also show a large scatter for each substance. By reducing the dimensions of the extracted features, different sample clusters can be represented and the calculated loadings allow significant parameters to be determined for classification. The results also suggest that differentiation of different reaction mechanisms is feasible. Testing of the regressor function shows reliable results considering the comparatively small amount of data
Gute (online) Lehre, aber wie?: Neun Qualitätskriterien und 40 Auditfragen für gute (online) Schulungen
No full textSchulungen in neun Prozessschritten gestalten! Digitalisierung des Masterfaches „Integrierte Managementsysteme“ im Studiengang „Material Science and Sustainability Methods“ im Fachbereich Naturwissenschaften an der Hochschule Bonn-Rhein-Sieg. Am Beispiel einer jahrelang in Präsenz gelehrten Lehrveranstaltung mit Vorlesungen und seminaristischen Übungen wird gezeigt, wie das Gestalten und Durchführen zur Vermittlung prüfungsrelevanter Kompetenzen auch „online“ gelingt. Das passende „Setting“ des Lehr- und Lernprozesses unter Beachtung von Qualitätskriterien und Handlungsempfehlungen ist für jede Art von Schulung in Universitäten, Behörden, Unternehmen und anderen Organsitationen relevant
Negotiating Taste for Digital Depiction: Aligning Individual Concepts of Taste Perception in a Co-Design Process
No full textTaste is a complex phenomenon that depends on the individual experience and is a matter of collective negotiation and mediation. On the contrary, it is uncommon to include taste and its many facets in everyday design, particularly online shopping for fresh food products. To realize this unused potential, we conducted two Co-Design workshops. Based on the participants’ results in the workshops, we prototyped and evaluated a click-dummy smart-phone app to explore consumers’ needs for digital taste depiction. We found that emphasizing the natural qualities of food products, external reviews, and personalizing features lead to a reflection on the individual taste experience. The self-reflection through our design enables consumers to develop their taste competencies and thus strengthen their autonomy in decision-making. Ultimately, exploring taste as a social experience adds to a broader understanding of taste beyond a sensory phenomenon
Formelsammlung Wirtschaftsstatistik: Wissen kompakt für Studierende und Praktiker
No full textDiese etablierte Formelsammlung enthält und erklärt statistische Formeln, wie sie in den Wirtschaftswissenschaften und in der wirtschaftswissenschaftlichen Praxis fundamental notwendig sind. Das Verständnis der Formeln und deren praktische Anwendung werden durch nützliche Hilfen und verständliche Beispiele sinnvoll unterstützt, so dass der Kontext wirtschaftsstatistischer Formeln klar und allgemein verständlich erklärt dargestellt wird. Diese Formelsammlung ist ein unverzichtbares Tool für Studierende der Wirtschaftswissenschaften, aber auch ein nützliches Nachschlagewerk für Verantwortliche aus Wirtschaft, Politik und Lehre. In der 5. Auflage wurden die Inhalte überarbeitet und ergänzt. (Verlagsangaben