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Willingness-to-pay for alternative fuel vehicle characteristics : a stated choice study for Germany
(2016)
In the light of European energy efficiency and clean air regulations, as well as an ambitious electric mobility goal of the German government, we examine consumer preferences for alternative fuel vehicles (AFVs) based on a Germany-wide discrete choice experiment among 711 potential car buyers. We estimate consumers’ willingness to-pay and compensating variation (CV) for improvements in vehicle attributes, also taking taste differences in the population into account by applying a latent class model with 6 distinct consumer segments. Our results indicate that about 1/3 of the consumers are oriented towards at least one AFV option, with almost half of them being AFV-affine, showing a high probability of choosing AFVs despite their current shortcomings. Our results suggest that German car buyers’ willingness-to-pay for improvements of the various vehicle attributes varies considerably across consumer groups and that the vehicle features have to meet some minimum requirements for considering AFVs. The CV values show that decision-makers in the administration and industry should focus on the most promising consumer group of ‘AFV aficionados’ and their needs. It also shows that some vehicle attribute improvements could increase the demand for AFVs cost-effectively, and that consumers would accept surcharges for some vehicle attributes at a level which could enable their private provision and economic operation (e.g. fast-charging infrastructure). Improvement of other attributes will need governmental subsidies to compensate for insufficient consumer valuation (e.g. battery capacity).
Organisationen sind immer mehr gefragt, auch digitale Arbeitsumgebungen bewusst zu formen. Neue Technologien und digitale Arbeitspraktiken verlagern den Ort, an dem eine gemeinsame Identität gebildet wird, zunehmend in virtuelle Räume. Bislang fokussieren sich Führungskräfte und Change Manager jedoch zu sehr auf Dinge, die sie anfassen und plastisch gestalten können. Die Autoren erörtern daher, wie Unternehmen auch in virtuellen Arbeitswelten die organisationale Identität gestalten und aufrechterhalten können, um auf diese Weise das Change Management zu unterstützen.
In der vorliegenden Studie werden typische, kommerziell erhältliche und mit unterschiedlichen Lacksystemen beschichtete MDF für den Küchenbereich hinsichtlich ihres Emissionsverhaltens und deren Oberflächeneigenschaften verglichen: wasserlack-, lösungsmittellack- und pulverlackbasierte Oberflächen. Es zeigt sich, dass eine Pulverlackierung insgesamt zu höherwertigen Produkten führt, sowohl in Bezug auf Kratzbeständigkeit, Haftung und Beständigkeit gegen feuchte Hitze als auch insbesondere in Bezug auf VOC-Emissionen. Die Wasserlackoberflächen schnitten hinsichtlich ihres Emissionsverhaltens deutlich besser ab als die lösemittelbasierten Beschichtungssysteme und zeigten in Bezug auf die Oberflächeneigenschaften mit einer Ausnahme vergleichbare Kennwerte.
"Wer nicht vielfältig denkt, denkt einfältig". Mit diesem Spruch machen Studierende der Hochschule Reutlingen in einem Videoclip auf das Thema Diversity aufmerksam. Doch was verstehen wir eigentlich darunter? Seit September letzten Jahres ist Professorin Dr. Gabriela Tullius Vizepräsidentin der Hochschule Reutlingen und widmet sich unter anderem diesem Bereich. GEA-Campus hat nachgefragt, worum es bei Diversity geht und warum dieser Bereich die Hochschule beschäftigt.
Tumorzellen on the move : mikrosystem-basierter Assay zur Untersuchung der Tumorzellen-Migration
(2016)
Die Invasion von Tumorzellen in umliegendes Gewebe und die Bildung von Metastasen transformieren einen lokal wachsenden Tumor in eine systemische und lebensbedrohliche Krankheit mit schlechter Prognose. Dabei spielt die aktive Migration der Tumorzellen eine entscheidende Rolle. Tumorzellen gelangen durch die aktive Zellbewegung in das Lymph- oder Blutsystem und breiten sich im Körper aus. Bei der Invasion in ein neues Organ migrieren die Zellen ebenfalls wieder in komplexer Weise durch das Gewebe und können schließlich dort Metastasen bilden. Auf Grund der enormen medizinischen Relevanz der Tumorzell-Invasion, wird die Bewegung von Tumorzellen seit Jahrzehnten unter Laborbedingungen umfassend untersucht und ist ein wichtiger Marker für die Aggressivität der Tumorzellen. Zur Bewegungsanalyse gibt es mehrere experimentelle und auch kommerziell erhältliche in-vitro Untersuchungsmethoden. Ziel des interdisziplinären Projektes „MigChip“ ist die Entwicklung, Herstellung und experimentelle Validierung eines Mikrofludik-Chips zur verbesserten, detailgenauen in-vitro Untersuchung der Tumorzellen-Migration.
Systemic Constellation describes an approach that enables practitioners to examine and address typical issues in diversity management from a different, relational perspective. Systemic Constellation utilizes the human ability to recognize the qualities of relationships between two or more people from their spatial alignment to each other (transverbal language) and the capability to illustrate inner pictures by placing humans or objects in a room as representatives (representative perception). Systemic Constellation originated in the field of family therapy and counseling, but through research, guidance work, and teaching activities over the last two decades, it has developed into a generic, structural, constellation logic with multiple methods of application. It has been adapted to a variety of topics and issues, and a number of constellation formats. This article serves as a starting point for the transfer of Systemic Constellation into diversity management. It appears that conventional approaches taught in traditional management classes (such as focusing on tools, setting targets, planning measures, and offering incentives) are of limited use when trying to deal with problematic situations in diversity management. Preliminary trials show that new solutions and insights into deeper underlying dynamics can be gained on personal and institutional levels when applying Systemic Constellation. Participants find the application of the model as very beneficial. Systemic Constellation is grounded in personal experience and particularly in a person’s own experience of the consistency of representative perception. This viewpoint can only be conveyed rudimentarily in a scientific article. Readers should feel encouraged to apply Systemic Constellations themselves and use it in their work, experimentally and professionally. To harness the full potential of Systemic Constellations in diversity management, further research needs to be done.
Optimization-based analog layout automation does not yet find evident acceptance in the industry due to the complexity of the design problem. This paper presents a Self-organized Wiring and Arrangement of Responsive Modules (SWARM), able to consider crucial design constraints both implicitly and explicitly. The flexibility of algorithmic methods and the expert knowledge captured in PCells combine into a flow of supervised module interaction. This novel approach targets the creation of constraint-compliant layout blocks which fit into a specified zone. Provoking a synergetic self-organization, even optimal layout solutions can emerge from the interaction. Various examples depict the power of that new concept and the potential for future developments.
The deterioration of the shielding performance of electromagnetic interference finger stock gaskets in a corrosive environment is investigated. The visualization of the real contact area shows a drastic reduction of the engaged active contact region between fingers and their mating surfaces in presence of corrosives residues. In fact, additional openings occur besides the “Tlike” holes due to the porous nature of gaskets. This leads to a strong degradation of the shielding effectiveness. Modified Bethe’s theory is used to estimate the equivalent circuit parameters while the shielding effectiveness in terms of ratio between two transfer functions is obtained upon applying the filter theory. Quantitative measurements carried out for different gasket types show a good agreement with calculated results, demonstrating thus the validity of the approach.
Sport marketing is the specific application of marketing principles and processes to sports products and services. In 2014 the biggest sports event in the world, the FIFA World Cup, took place in Brazil. Billions of spectators around the world saw Germany win the trophy in Rio de Janeiro for the fourth time in history. Yet unlike in previous World Cups, conversation was not only taking place at the numerous public viewings which were held in open spaces like bars and restaurants. For the entire tournament social media like Facebook or Twitter were playing a dominant role in all aspects. With 672 million tweets on Twitter and three billion conversations on Facebook, this was the most social World Cup as well as the most social mega sports event so far. It did not matter whether it were users, athletes or companies, everyone was trying to catch up on the conversation to be informed or inform others about their opinion or latest news. This paper analyzes the implementation of social media marketing during mega sports events with a focus on Adidas’ and Nike’s social media campaigns in the frame of the FIFA World Cup 2014 in Brazil. The analysis shows that social media marketing in the frame of mega sports events gains importance. Those companies finding topics that affect people personally with a relationship to their products achieve success through social media marketing.
Software process improvement (SPI) has been around for decades: frameworks are proposed, success factors are studied, and experiences have been reported. However, the sheer mass of concepts, approaches, and standards published over the years overwhelms practitioners as well as researchers. What is out there? Are there new trends and emerging approaches? What are open issues? Still, we struggle to answer these questions about the current state of SPI and related research. In this article, we present results from an updated systematic mapping study to shed light on the field of SPI, to develop a big picture of the state of the art, and to draw conclusions for future research directions. An analysis of 769 publications draws a big picture of SPI-related research of the past quarter-century. Our study shows a high number of solution proposals, experience reports, and secondary studies, but only few theories and models on SPI in general. In particular, standard SPI models like CMMI and ISO/IEC 15,504 are analyzed, enhanced, and evaluated for applicability in practice, but these standards are also critically discussed, e.g., from the perspective of SPI in small to-medium-sized companies, which leads to new specialized frameworks. New and specialized frameworks account for the majority of the contributions found (approx. 38%). Furthermore, we find a growing interest in success factors (approx. 16%) to aid companies in conducting SPI and in adapting agile principles and practices for SPI (approx. 10%). Beyond these specific topics, the study results also show an increasing interest into secondary studies with the purpose of aggregating and structuring SPI-related knowledge. Finally, the present study helps directing future research by identifying under-researched topics awaiting further investigation.