Violence on television

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John Christopher

Young Will Parker and his companions make a perilous journey toward an outpost of freedom where they hope to escape from the ruling Tripods, who capture mature human beings and make them docile, obedient servants. ------- ------- This is the first book of the original Tripods trilogy written under the name John Christopher. These young adult science fiction stories are set on Earth ruled by the alien Tripods. A prequel detailing the conquest was added 20 years later. *John Christopher is a pseudonym of Sam Youd.* The series: 0.5 (Prequel) When the Tripods Came (1988) 1. The White Mountains (1967) 2. The City of Gold and Lead (1967) 3. The Pool of Fire (1968)

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Marie Winn

Examines the effects of television on children and on family life and suggests methods by which parents can successfully control television viewing.

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Jürgen-Hinrich Fuhrkop and Jürgen Köning

Membranes and Molecular Assemblies: The Synkinetic Approach contains 118 colour illustrations and a further 70 in black and white. Great care has been taken to choose graphics that illustrate difficult concepts. The book describes the wealth of membrane structures realized by chemists mainly within the last two decadesmicelles, vesicles, fibres, and surface monolayers - from the point of view of supramolecular chemistry. It puts new emphasis on "synkinetic" procedures for the preparation of non-covalent assemblies as well as their structural characterization by electron microscopy, solid state NMR spectroscopy, and comparison to X-ray crystal structures. The supramolecular structure of well-defined molecular assemblies and their use as complex reaction systems is also emphasized. Stereoselective surface recognition, asymmetric membranes, vectorial photoreactions, solid molecular bilayers in the form of tubules or helical rods, and sealable nanopores in membranes or on electrode surfaces are a few outstanding examples. In addition, the importance of well-defined gaps on surfaces and within membranes and crystals is discussed in context for the first time. Membranes and Molecular Assemblies will provide a fascinating read for graduates, researchers, and teachers in bio-organic chemistry, with interests in membranes and surface and colloid structure.

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Melissa A. Hardy

In this book Hardy probes the use of dummy variable regression in increasingly complex specifications, exploring issues such as: interaction, heteroscedasticity, multiple comparisons and significance testing, the use of effects or contrast coding, testing for curvilinearity, and estimating a piecewise linear regression.