Petra Schubert

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Tumours ferment glucose to lactate even in the presence of oxygen (aerobic glycolysis; Warburg effect). The pentose phosphate pathway (PPP) allows glucose conversion to ribose for nucleic acid synthesis and glucose degradation to lactate. The nonoxidative part of the PPP is controlled by transketolase enzyme reactions. We have detected upregulation of a(More)
Successfully conducting business on the Internet calls for new marketing paradigms that meet the requirements of the unique combination of its inherent characteristics: electronic markets, technological platform, and marketing issues. In this context, electronic markets are the framework in which market transactions are performed on the Internet. Underlying(More)
The original reason for the research was triggered by a disappointment felt by the authors when using the Web as research tool and business medium. Many sites feature fancy graphics, well organized content, but rarely a site induces the visitor to come back on a regular basis (with exceptions of course). The electronic commerce revolution some predicted(More)
Bringing communities of buyers and sellers together in the arena of electronic commerce stimulates three major potentials: the building of trust, the collection and effective use of community knowledge and the economic impacts of accumulated buying power. In this context, we introduce the concept of Virtual Communities of Transaction and review important(More)
The idea of integrating users into a co-design process as part of a mass customization strategy is a promising approach for companies being forced to react to the growing individualization of demand. Compared to the rather huge amount of literature on manufacturing and information systems for mass customization, only little research discusses the role of(More)
Using electronic media for interaction with customers enables enterprises to integrate customer activity and knowledge about customers resulting in a high-quality relationship thus turning buying processes more efficient. In this paper we review the basics of personalization – how it works, where it can be used (the applications) and what makes it work (the(More)
Bringing communities of buyers and sellers together in the arena of electronic commerce stimulates three major potentials: the building of trust, the collection and effective use of community knowledge and the economic impacts of accumulated buying power. In this context, we introduce the concept of Virtual Communities of Transaction and review important(More)
Networked computer technology for business purposes is no longer a domain of companies alone. The Internet has invaded private homes and is becoming a communication interface between private parties (e.g. personal E-Mail), companies (E-Commerce) and the government (EGovernment). The pervasion of the "virtual world" triggers government agencies to think(More)