Nick Bernard - Böcker

The 39th Annual Denver X-Ray Conference on Applications of X-Ray Analysis was held July 30 -August 3, 1990, at the Sheraton Steamboat Resort and Conference Center, Steamboat Springs, Colorado. The "Denver Conference" is recognized to be a major event in the x-ray analysis field, bringing together scientists and engineers from around the world to discuss the state of the art in x-ray applications as well as indications for future develop­ ments. In recent years there has been a steady expansion of applications of x-ray analysis to characterize surfaces and thin films. To introduce the audience to one of the exciting and important new developments in x-ray fluorescence, the topic for the Plenary Session of the 1990 Conference was: "Surface and Near-Surface X-Ray Spectroscopy. " The Conference had the privilege of inviting five leading world experts in the field of x-ray spectroscopy to deliver lectures at the Plenary Session. The first two lectures were on total-reflection x-ray fluorescence spectrometry. Professor P. Wobrauschek of Austria reviewed "Recent Developments and Results in Total-Reflection X-Ray Fluorescence. " Trends and applications of the technique were also discussed. Dr. T. Arai of Japan reported on "Surface and Near-Surface Analysis of Silicon Wafers by Total Reflection X-Ray Fluorescence. " He emphasized the importance of using proper x-ray optics to achieve high signal-to-noise ratios. A mathematical model relating the x-ray intensity to the depth of x-ray penetration was also described.

"Traditional food production and food economies have changed drastically as a result of social, economic, and political influences. A decrease in subsistence production and consumption of country food and concomitant increase in imported and prepared food has brought increased health risks. But neither are country foods without risk, with impacts of contamination, climate, and cultural change. Contributions from a 5-year multi-disciplinary study examine the impacts of development and environmental change, conservation, co-management and quota systems, fur boycotts and anti-sealing lobbies, the disruption of traditional distribution networks, impacts of new technologies, transportation and infrastructure, the influence of wage economies, market forces, social policies, as well as legal and jurisdictional influences. Issues and their intensity vary between regions of the circumarctic, but many common themes emerge. Introduction by Gerard Duhaime and Nick Bernard.Chapters by: Sophie Theriault, Ghislain Otis, Gerard Duhaime, and Christopher Furgal; Gerard Duhaime, Eric Dewailly, Paule Halley, Christopher Furgal, Nick Bernard, Anne Godmaire, Carole Blanchet, Heather Myers, Stephanie Powell, Susie Bernier, and Jacques Grondin; Heather Myers, Stephanie Powell, and Gerard Duhaime; Heather Myers, Stephanie Powell, and Gerard Duhaime; Marcelle Chabot; Rasmus Ole Masmussen, Gerard Duhaime, Eric Dewailly, Christopher Furgal, Nick Bernard, Carole Blanchet, Peter Bjerregaard, and Alexandre Morin; Rasmus Ole Rasmussen; Josee Arsenault; Ludger Muller-Wille, Leo Granberg, Mika Helander, Lydia Heikkila, Anni-Siiri Lansman, Tuula Tuisku, and Delia Berrouard; Ludger Muller-Wille, Jorunn Eikjok, and Dietbert Thannheiser; Tuula Tuisku; Larissa Abrutina; Chris D. James Paci, Cindy Dickson, Scot Nikels, Hing Man Chan, and Christopher Furgal; and Gerard Duhaime and Nick Bernard.Poster presentations presented as plates by: Gerard Duhaime, Nick Bernard, and Alexandre Morin; Ghislain Otis and Sophie Theriault; Paule Halley and Genevieve Parent; Marcelle Chabot; Paule Halley; Marie-Josee Verreault and Paule Halley; Alexandre Morin and Gerard Duhaime; Veronique Belanger and Paul Halley; and Anne Godmaire and Gerard Duhaime. "