Refine
Departments, institutes and facilities
- Fachbereich Wirtschaftswissenschaften (89)
- Fachbereich Informatik (65)
- Fachbereich Angewandte Naturwissenschaften (59)
- Fachbereich Ingenieurwissenschaften und Kommunikation (58)
- Institut für Technik, Ressourcenschonung und Energieeffizienz (TREE) (50)
- Fachbereich Sozialpolitik und Soziale Sicherung (46)
- Internationales Zentrum für Nachhaltige Entwicklung (IZNE) (23)
- Institut für Verbraucherinformatik (IVI) (17)
- Institut für Medienentwicklung und -analyse (IMEA) (16)
- Institut für funktionale Gen-Analytik (IFGA) (16)
- Institute of Visual Computing (IVC) (13)
- Institut für Cyber Security & Privacy (ICSP) (12)
- Institut für Sicherheitsforschung (ISF) (9)
- Zentrum für Innovation und Entwicklung in der Lehre (ZIEL) (7)
- Centrum für Entrepreneurship, Innovation und Mittelstand (CENTIM) (6)
- Graduierteninstitut (6)
- Zentrum für Ethik und Verantwortung (ZEV) (5)
- Bibliothek (4)
- Institut für Detektionstechnologien (IDT) (2)
- Präsidium (2)
- Gleichstellungsstelle (1)
- Institut für IT-Service (ITS) (1)
- Sprachenzentrum (1)
Document Type
- Article (142)
- Part of a Book (69)
- Conference Object (66)
- Book (monograph, edited volume) (20)
- Preprint (12)
- Contribution to a Periodical (8)
- Report (8)
- Research Data (6)
- Doctoral Thesis (6)
- Master's Thesis (6)
- Bachelor Thesis (5)
- Working Paper (5)
- Part of Periodical (4)
- Book review (4)
- Conference Proceedings (2)
- Other (2)
Year of publication
- 2022 (365) (remove)
Keywords
- Machine Learning (5)
- Lehrbuch (4)
- Medienästhetik (4)
- virtual reality (4)
- Cathepsin K (3)
- GDPR (3)
- Knowledge Graphs (3)
- Lignin (3)
- Medien (3)
- Medienwissenschaft (3)
Professor Dr. Dietmar Fink, Inhaber des Lehrstuhls für Unternehmensberatung an der Hochschule Bonn-Rhein-Sieg und Geschäftsführender Direktor der Wissenschaftlichen Gesellschaft für Management und Beratung (WGMB) in Bonn, über den Mehrwert von Consulting-Rankings und den Sinn von Beraterprojekten bei Versicherern
50 Jahre: Von der FH zur HAW
(2022)
Ziel der achten Auflage des wissenschaftlichen Workshops “Usable Security and Privacy” auf der Mensch und Computer 2022 ist es, aktuelle Forschungs- und Praxisbeiträge zu präsentieren und anschließend mit den Teilnehmenden zu diskutieren. Der Workshop soll ein etabliertes Forum fortführen und weiterentwickeln, in dem sich Experten aus verschiedenen Bereichen, z. B. Usability und Security Engineering, transdisziplinär austauschen können.
Safety-critical applications like autonomous driving use Deep Neural Networks (DNNs) for object detection and segmentation. The DNNs fail to predict when they observe an Out-of-Distribution (OOD) input leading to catastrophic consequences. Existing OOD detection methods were extensively studied for image inputs but have not been explored much for LiDAR inputs. So in this study, we proposed two datasets for benchmarking OOD detection in 3D semantic segmentation. We used Maximum Softmax Probability and Entropy scores generated using Deep Ensembles and Flipout versions of RandLA-Net as OOD scores. We observed that Deep Ensembles out perform Flipout model in OOD detection with greater AUROC scores for both datasets.
Background: Cancer heterogeneity poses a serious challenge concerning the toxicity and adverse effects of therapeutic inhibitors, especially when it comes to combinatorial therapies that involve multiple targeted inhibitors. In particular, in non-small cell lung cancer (NSCLC), a number of studies have reported synergistic effects of drug combinations in the preclinical models, while they were only partially successful in the clinical setup, suggesting those alternative clinical strategies (with genetic background and immune response) should be considered. Herein, we investigated the antitumor effect
of cytokine-induced killer (CIK) cells in combination with ALK and PD-1 inhibitors in vitro on genetically variable NSCLC cell lines.
Methods: We co-cultured the three genetically different NSCLC cell lines NCI-H2228 (EML4-ALK), A549 (KRAS mutation), and HCC-78 (ROS1 rearrangement) with and without nivolumab (PD-1 inhibitor) and crizotinib (ALK inhibitor). Additionally, we profiled the variability of surface expression multiple immune checkpoints, the concentration of absolute dead cells, intracellular granzyme B on CIK cells using flow cytometry as well as RT-qPCR. ELISA and Western blot were performed to verify the activation of CIK cells.
Results: Our analysis showed that (a) nivolumab significantly weakened PD-1 surface expression on CIK cells without impacting other immune checkpoints or PD-1 mRNA expression, (b) this combination strategy showed an effective response on cell viability, IFN-g production, and intracellular release of granzyme B in CD3+ CD56+ CIK cells, but solely in NCI-H2228, (c) the intrinsic expression of Fas ligand (FasL) as a T-cell activation marker in CIK cells was upregulated by this additive effect, and (d) nivolumab induced Foxp3 expression in CD4+CD25+ subpopulation of CIK cells significantly increased. Taken together, we could show that CIK cells in combination with crizotinib and nivolumab can enhance the anti-tumor immune response through FasL activation, leading to increased IFN-g and granzyme B, but only in NCI-H2228 cells with EML4-ALK rearrangement. Therefore, we hypothesize that CIK therapy may be a potential alternative in NSCLC patients harboring EML4-ALK rearrangement, in addition, we support the idea that combination therapies offer significant potential when they are optimized on a patient-by-patient basis.
With the increasing demand for ultrapure water in the pharmaceutical and semiconductor industry, the need for precise measuring instruments for those applications is also growing. One critical parameter of water quality is the amount of total organic carbon (TOC). This work presents a system that uses the advantage of the increased oxidation power achieved with UV/O3 advanced oxidation process (AOP) for TOC measurement in combination with a significant miniaturization compared to the state of the art. The miniaturization is achieved by using polymer-electrolyte membrane (PEM) electrolysis cells for ozone generation in combination with UV-LEDs for irradiation of the measuring solution, as both components are significantly smaller than standard equipment. Conductivity measurement after oxidation is the measuring principle and measurements were carried out in the TOC range between 10 and 1000 ppb TOC. The suitability of the system for TOC measurement is demonstrated using the oxidation by ozonation combined with UV irradiation of defined concentrations of isopropyl alcohol (IPA).
In this paper, a gas-to-power (GtoP) system for power outages is digitally modeled and experimentally developed. The design includes a solid-state hydrogen storage system composed of TiFeMn as a hydride forming alloy (6.7 kg of alloy in five tanks) and an air-cooled fuel cell (maximum power: 1.6 kW). The hydrogen storage system is charged under room temperature and 40 bar of hydrogen pressure, reaching about 110 g of hydrogen capacity. In an emergency use case of the system, hydrogen is supplied to the fuel cell, and the waste heat coming from the exhaust air of the fuel cell is used for the endothermic dehydrogenation reaction of the metal hydride. This GtoP system demonstrates fast, stable, and reliable responses, providing from 149 W to 596 W under different constant as well as dynamic conditions. A comprehensive and novel simulation approach based on a network model is also applied. The developed model is validated under static and dynamic power load scenarios, demonstrating excellent agreement with the experimental results.