Peter Unger Book order

During the middle of the twentieth century, philosophers generally agreed that, by contrast with science, philosophy should offer no substantial thoughts about the general nature of concrete reality. Instead, philosophers offered conceptual truths. It is widely assumed that, since 1970, things have changed greatly. This book argues that's an illusion that prevails because of the failure to differentiate between "concretely substantial" and "concretely empty" ideas.

This thesis deals with planning and optimization methods as well as performance analyses for hybrid cellular and broadcasting networks. In this context, the considered systems are the cellular Universal Mobile Telecommunications System (UMTS) and the mobile broadcast Digital Video Broadcasting – Handheld (DVB-H) system. The combination of these two systems enables the advantages offered by both technologies to be exploited. On the one hand, interactive channels and seamless coverage are provided by the cellular network component. On the other hand, the additional high data rate broadcast downlink can be used to efficiently serve a large number of users at the same time. Thus, hybrid networks provide an efficient possibility for network operators to serve traffic demand with popular content. Due to the broadcast capability and the high downlink data rate, hybrid networks are particularly efficient when deployed in areas with high traffic demand. The IP Datacast framework offers the required basis for such inter-system cooperations.

Quality and profitability of injection molding operations can be considerably influenced by the hot runner system. The many variations and design principles of hot runners are material-dependent and therefore not universally applicable. Knowing about and recognizing these limitations will make or brake a molder's success. This book provides a comprehensive overview of the state-of-the-art in hot runner technology, advantageous design principles, and applications. The user will find the necessary basics as well as many proven designs and application examples. Contents: - Basic Aspects of Heat Technology - Introduction of Hot Runner Components - Heating of Hot Runner Manifold Blocks - Heating of Hot Runner Nozzles - Temperature Measuring and -Controlling - Material Behaviour under Mechanical Stress - Corrosion and Wear - Screw Connections and Material Selection for High Temperatures - Basic Aspects of Plastics Technology - Maintenance and Storage of Hot Runner Molds - Design of Special Hot Runner Systems and Hot Runner Molds - Supplier of Hot Runner Systems

Unger argues that our intuitions about ethical cases are generated not by basic moral values, but by certain distracting moral mechanisms that encourage deceptive reactions. He proposes a complex and novel metaethics arguing that we easily generate a lenient or tough context in which to make ethical assessments.

Suggests that, not only can nothing ever be known, but no one can ever have a reason at all for anything. The author argues that no one can ever say, let alone believe, that anything is the case, and also proposes a radical departure from the linguistic and epistemological systems we have become accustomed to.