Sam Dales is an outstanding scientist in whose laboratory many excellent researchers have trained. His early research on Poxviruses established his reputation and culminated in a 1981 monograph "Biology of Poxviruses". His recent focus has been on virus-related demyelinating disease, an important area in which his impact can be seen in the number (6) of invited reviews he has contributed in 1987-88. A major discovery was the demonstration that infection leading to demyelination is host age dependent and related to the differentiation process of the target oligodendrocyte cell. He is a world authority on virus/cell interactions; his papers were cited over 80 times in 1987 according to SCI's Citation Index.

Edwin Embrey Daniel, Professor, Department of Medicine, McMaster University, has used a multidisciplinary approach to understand the control of smooth muscle function at the whole animal, tissue, cellular and molecular level. He has evaluated functional control in terms of structure and he has related changes in smooth muscle control systems to diseases involving smooth muscle. He has transmitted his discoveries to the world in over 600 published papers and he has transmitted his enthusiasm for science and his determination to work at the leading edge of science, with advanced technology, to his numerous students and colleagues.

Professor Davenport's research and teaching have led to a better understanding of the response of structures to wind and earthquake forces. Not only has he contributed in a major way to fundamental science, but he has earned an international reputation for the development and testing of some of the world's major structures located in Canada, the United States, Europe and Australia. His work has advanced the state of the art of Structural Engineering as reflected in new design criteria and revised building codes. Professor Davenport's distinction as a scholar and his reputation as a professional engineer have been widely acclaimed both in Canada and abroad; his achievement inspires his academic colleagues and adds lustre to the name of Canadian Engineering.

Le prof. DAVID est reconnu internationalement pour l'originalité et l'importance de ses recherches appliquées en géostatistique. Comme ingénieur minier il a opérationalisé la théorie des variables régionalisées développé de nouvelles approches pour l'analyse des variogrammes, amélioré les méthodes d'échantillonnage, et a été le champion mondial de l'application de la géostatistique à une grande variété de gîtes métallifères et non-métallifères. Il a publié le premier manuel de géostatistique appliquée et a été le premier à avoir développé un système complet d'analyse géostatistique sur ordinateur et sur micro-ordinateur. Il a été le pionnier de l'introduction de la géostatistique en mécanique des sols et en cartographie. Agé de 42 ans il est l'auteur de plus de 100 publications et il a été le principal levier de la formation spécialisée en géostatistique de 1500 professionnels et il a enseigné la géostatistique sur tous les continents.

Dr. J. A. Davies has demonstrated an unusual ability to use knowledge in one area of science to further the understanding of another. Combining techniques in electrochemistry, radiochemistry, and nuclear physics, he has made important contributions to such diverse subjects as the mechanism of anodic oxidation of metals, radiation damage and annealing in crystals, the structure of doped semi-conductors, and the penetration of charged particles into solids. His studies yielded the first experimental evidence of the channelling of energetic ions in crystals, and he has played a major role in elucidating this phenomenon and using it in many solid state investigations. Not only has he guided many colleagues but has established for himself an international reputation based on his pioneering work in these fields.

Jean Davignon a réussi à développer un programme de recherche unique au monde grâce à sa polyvalence, sa multidisciplinarité, son expertise exceptionnelle en biochimie des lipides et en génétique humaine. Il a participé à de grandes découvertes sur la physiopathologie de I'athérosclérose en repérant un gêne défectif chez les canadiens-français. C'est avec I'aide des docteurs Goldstein et Brown qu'il a identifié une première délétion grave dans le gêne du récepteur des lipoprotéines permettant à ces chercheurs américains de prouver leur hypothèse. C'est ce qui leur valut I'obtention du prix Nobel de Médecine et de Physiologie. Depuis, plusieurs autres délétions ont été identifiées dans la population canadienne-française, ce qui en fait la population la plus à risque pour les maladies cardio-vasculaires. Les travaux cliniques et fondamentaux du docteur Davignon ont permis plus que tout autre de faire progresser les connaissances sur I'athérosclérose et méritent d'être reconnus par la Société Royale du Canada. Le docteur Davignon est un rare exemple du 'clinicien-chercheur-type' moderne qui allie génétique moléculaire, génétique humaine et recherche clinique avec un brio inégalé.

Donald Dawson has made a broad variety of basic contributions to the description and analysis of physical systems in which random elements play an essential role. He works at the heart of modern probability theory and at such a level of generality that virtually any temporal model is a particular case of his work, but he seems always to have an eye open towards practical applications. In particular he has introduced the concept of multiplicative or branching measure diffusion process and created the method of hierarchical mean field limits.

Jacques de Champlain se consacre à l'étude de l'hypertension humaine, notamment au rôle joué par le système nerveux autonome dans cette pathologie. Ses recherches touchent aussi les mécanismes moléculaires impliqués dans le contrôle de l'activité sympathique et dans le développement de l'hypertension, ainsi que d'autres pathologies cardio-vasculaires. Les résultats de ses travaux ont eu un impact considérable sur les autres chercheurs et sur les praticiens. Jacques de Champlain a, par exemple, démontré l'effet bénéfique de l'exercice physique chez les patients modérément hypertendus; il a également mis en évidence l'existence d'une hyperactivité du système nerveux sympathique dans plusieurs types d'hypertension et suggéré des approches innovatrices pour normaliser le tonus sympathique et la pression artérielle dans l'hypertension expérimentale et humaine.

Dr. J. H. de Leeuw's contributions are recognized in three major areas: research, teaching, and administration. As a researcher he is internationally known for his many contributions to rarefied gasdynamics, plasma physics and rocket probing of the upper atmosphere. He has supervised many Masters and Ph.D. candidates. He has over forty papers to his credit in the refereed literature. His lectures have been admired by under-graduate students alike and by colleagues internationally. The fact that he was selected by a search committee from government, industry and the University to become Director of the Institute for Aerospace Studies speaks for itself as recognition of his scholarly and administrative abilities. Dr. de Leeuw is an outstanding candidate and will bring credit to the Royal Society of Canada.