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IT-Risiken bei Netzwerk Videoüberwachung. Kamera-Anbieter denken bisher kaum an die Gefährdung
(2008)
Creating chemo- & bioinformatics workflows, further developments within the CDK-Taverna Project
(2008)
Rationale Klimaschutzpolitik
(2008)
Fachkräftemangel in Deutschland: Handlungsfelder für eine Neuausrichtung der beruflichen Bildung
(2008)
Die Verfügbarkeit von naturwissenschaftlich-technischen Fach- und Führungskräften mit Praxiserfahrung nimmt ab. Vor allem in kleinen und mittleren Unternehmen können Positionen für Ingenieure, Naturwissenschaftler und Techniker nicht hinreichend besetzt werden. Es mangelt dabei nicht allein an Köpfen — auch betriebliche Anforderungen und individuelle Kompetenzen passen vielfach nicht zusammen. Quantitative und qualitative Engpässe können nur in Zusammenarbeit von Unternehmen und Hochschulen angegangen werden. Der vorliegende Beitrag widmet sich diesen Lösungsmöglichkeiten am Beispiel von Ingenieuren und erarbeitet einen Handlungsrahmen zur Neuausrichtung betrieblicher Ausbildungsportfolios, um den eskalierenden Mangel an Ingenieuren innerhalb von fünf Jahren zu überwinden.
This study on Student Attitudes to Entrepreneurship investigates the image which university students have of entrepreneurs and entrepreneurship. It is an initial exploratory/empirical study, which looks at the situation in Germany, Romania, Latvia, Italy and Austria. The study, based on questionnaires, shows that there are significant differences but also common features to the image of entrepreneurship and attitudes to it in the five countries. It is interesting to note that the students polled in connection with the study tended to have a neutral to positive/very positive image of entrepreneurs.
Telemetrie
(2008)
Open-Source-Workflows
(2010)
Perspektive Wirtschaftsdemokratie. Mit einer neuen Wirtschafts- und Industriepolitik aus der Krise
(2010)
Lemmingzwang
(2010)
Das Gesetz zur Modernisierung des GmbH-Rechts und zur Bekämpfung von Missbräuchen (MoMiG) hatte weitreichende Konsequenzen für die Kapitalaufbringung und -erhaltung in der GmbH. Die Modifizierung der Kapitalerhaltungsregeln hat insbesondere enorme Auswirkungen auf , vor allem das verbreitete Cash Pooling. Es wird dargestellt werden, welche Veränderungen diesbezüglich aus dem MoMiG resultieren.
Benzinmultis auf Beutezug
(2011)
EU-Krise und kein Ende
(2011)
„Das Elend geht weiter"
(2011)
It is well-known that protein-modified implant surfaces such as TiO2 show a higher bioconductivity. Fibronectin is a glycoprotein from the extracellular matrix (ECM) with a major role in cell adhesion. It can be applied on titanium oxide surfaces to accelerate implant integration. Not only the surface concentration but also the presentation of the protein plays an important role for the cellular response. We were able to show that TiOX surfaces modified with biotinylated fibronectin adsorbed on a streptavidin-silane self-assembly multilayer system are more effective regarding osteoblast adhesion than surfaces modified with nonspecifically bound fibronectin. The adsorption and conformation behavior of biotinylated and nonbiotinylated (native) fibronectin was studied by surface plasmon resonance (SPR) spectroscopy and atomic force microscopy (AFM). Imaging of the protein modification revealed that fibronectin adopts different conformations on nonmodified compared to streptavidin-modified TiOX surfaces. This conformational change of biotinylated fibronectin on the streptavidin monolayer delivers a fibronectin structure similar to the conformation inside the ECM and therefore explains the higher cell affinity for these surfaces.
The one-phonon inelastic low energy helium atom scattering theory is adapted to cases where the target monolayer is a p(1x1) commensurate square lattice. Experimental data for para-H2/NaCl(001) are re-analyzed and the relative intensities of energy loss peaks in the range 6 to 9 meV are determined. The case of the H2/NaCl(001) monolayer for 26 meV scattering energy is computationally challenging and difficult because it has a much more corrugated surface than those in the previous applications for triangular lattices. This requires a large number of coupled channels for convergence in the wave-packet-scattering calculation and a long series of Fourier amplitudes to represent the helium-target potential energy surface. A modified series is constructed in which a truncated Fourier expansion of the potential is constrained to give the exact value of the potential at some key points and which mimics the potential with fewer Fourier amplitudes. The shear horizontal phonon mode is again accessed by the helium scattering for small misalignment of the scattering plane relative to symmetry axes of the monolayer. For 1° misalignment, the calculated intensity of the longitudinal acoustic phonon mode frequently is higher than that of the shear horizontal phonon mode in contrast to what was found at scattering energies near 10 meV for triangular lattices of Ar, Kr, and Xe on Pt(111).
Hydrogen concentrations in ZnO single crystals exposing different surfaces have been determined to be in the range of (0.02–0.04) at.% with an error of ±0.01 at.% using nuclear reaction analysis. In the subsurface region, the hydrogen concentration has been determined to be higher by up to a factor of 10. In contrast to the hydrogen in the bulk, part of the subsurface hydrogen is less strongly bound, can be removed by heating to 550°C, and reaccommodated by loading with atomic hydrogen. By exposing the ZnO(10-10) surface to water above room temperature and to atomic hydrogen, respectively, hydroxylation with the same coverage of hydrogen is observed.
This report gives a brief overview to the state of the art of PEM fuel cell technology and a description of a newly developed fuel cell stack concept. One main research activity at the Westphalian Energy Institute of the Westphalian University of Applied Sciences is the development of PEM fuel cells, for which a range of different materials have been investigated for fuel cell pole plate construction. Whereas graphite is a material which has suitable properties concerning conductivity as well as manufacturing e.g. for milling, stainless steel foils are suitable for economical hydroforming processes. However, with steel coating is necessary to increase corrosion resistance as well as electrical conductivity. A new fuel cell stack design is currently under development using separated single fuel cells with hydraulic cell compression. The advantages of this stack concept are modularity, effective heat exchanging and constant, uniform cell compression which are further described in this work.
Gaining customer loyalty is an important goal of marketing, and loyalty programs are intended to help in reaching it. Research on loyalty programs suggests that customers differentiate between loyalty to a company and loyalty to a loyalty program, yet little is known about the consequences of these two types of loyalty. Therefore, our study intends to make two main contributions: (1) improving our understanding of the constructs “program loyalty” and “company loyalty”, (2) investigating the relative impact of the two types of loyalty on preference, intention, and purchase behavior for the case of a multi-firm loyalty program. Results indicate that company loyalty influences a customer’s choice to visit a particular provider and to prefer it over competitors, but it is not a strong predictor of purchase behavior. Conversely, program loyalty is a far more important driver of purchase behavior. This implies that company loyalty primarily attracts customers to a particular provider and program loyalty ensures that once inside the store, more money is spent.
Plädoyer für eine Diversifizierung des unternehmerischen Leitbildes in Forschung und Beratung
(2012)
Seit den 1980er Jahren erlangt der Vertrauensbegriff im organisationalen Kontext eine immer größer werdende Bedeutung. Dennoch sind die Einflussfaktoren, welche auf die unterschiedlichen Arten des organisationalen Vertrauens wirken, weitestgehend unbekannt. Daher sollen in diesem Beitrag durch qualitative und quantitative Methoden zunächst die unterschiedlichen organisationalen Rahmenbedingungen zweier verschiedeneer sozialer Dienstleister eufgezeigt werden. In einem weiteren Schritt sollen mittels quantitativer Methoden die Einflussfaktoren auf die unterschiedlichen Formen des Vertrauens in Organisationen dargestellt sowie Konsequenzen für die praktische Arbeit abgeleitet werden.