New Releases by Paul Ryan

This volume - investigating the work of a particular photographer, in this case, Willy Ronis - comprises a 4000-word essay by an expert in the field, 55 photographs presented chronologically, each with a commentary, and a biography of the featured photographer.

Focuses on the "why" and "how" of evalution before presenting and assessing the value of a range of evaluation techniques. Discusses the use and abuse of evaluation results in policy-making, particularly in relation to recent trends and issues in vocational education and training such as decentralization a declining role for the State, a shift towards work-based learning and a concern for issues of equality.

Collects Squadron Supreme #1-12, and Captain America #314.

The effects of graphite surface modification on fatigue crack growth resistance of the graphite/epoxy interface were examined using flexural peel specimens. Edge surfaces of pryolitic graphite were treated in an oxygen plasma for various lengths of time and subsequently bonded to a toughened epoxy to form flexural peel specimens. Fatigue crack growth rates were measured for the plasma treated and untreated specimens as a function of strain energy release rate. Fatigue crack growth resistance of plasma treated specimens was notably higher than that of untreated specimens, with the fatigue threshold doubled at an optimal treatment time. X-ray photoelectron spectroscopy, electron microscopy, and surface profilometry studies indicated that both surface chemistry and surface morphology of the graphite were changed by the plasma treatment. High temperature annealing was used to restore the original surface chemistry while retaining the etched surface morphology. Fatigue experiments were then performed on the heat treated specimens to separate the chemical and morphological effects on resistance to crack growth. Chemical modification turned out to be a secondary effect, contributing less than 13% to the overall fatigue crack growth resistance. A micro-mechanical model is proposed which explains the relative effects of surface chemistry and morphology on fatigue crack growth resistance along the graphite/epoxy interface.

Video Mind, Earth Mind is a collection of texts (1968-1991) by Paul Ryan offering ideas about how video and television can be used to respond to our ecological crisis. For example, Mr. Ryan presents the development of a teachable method for using video to interpret the natural world. Based on this method, he articulates a systemic way of using television to ground human communication in ecological systems. He argues that grounding our television communications in ecological systems will help control our runaway destruction of this planet and shape ways of living on earth that are sustainable.