Dr. James Trotter has displayed outstanding originality and productivity in his contribution to the elucidation of the crystal and molecular structure of a wide variety of chemical compounds by X-ray crystallographic methods. His recent researches on large organic molecules, many of which are of great biological importance, have for the first time led to the determination of the complete structures and absolute configurations of such complex molecular systems. Likewise his work on inorganic and organometallic compounds has provided structural information considered to be of the utmost importance in understanding the nature of chemical bonding in these substances.

Updated: Professor Lap-Chee Tsui is the Founding President of the Academy of Sciences of Hong Kong. He is also President of Victor and William Fung Foundation, Hong Kong, and Director of Qiushi Academy for Advanced Studies, Zhejiang University, China. He was the immediate-past Vice Chancellor of The University of Hong Kong and, prior to which, he was Geneticist-in-Chief at the Hospital for Sick Children in Toronto and University Professor at University of Toronto, Canada. Professor Tsui received his Bachelor and Master degrees from the Chinese University of Hong Kong and his PhD from University of Pittsburgh in 1979. He is world renowned for his research work in human genetics and genomics, notably theidentification of the gene for Cystic Fibrosis in 1989 and, later,other human genetic diseases while conducting a comprehensive characterization of human chromosome 7. He is also noted for his significant contribution to fighting the SARS coronavirus in 2003 and his role in leading the Hong Kong consortium in the international effort in completing the first comprehensive catalogue of human genome variations. Dr. Tsui has over 300 peer-reviewed scientific publications and 65 invited book chapters. He is the recipient of many national and international prizes, and a Fellow of Royal Society of Canada, Fellow of Royal Society of London, Fellow of Academia Sinica, Foreign Associate of the National Academy of Sciences USA, Foreign Member of the Chinese Academy of Sciences, and Laureate of the Canadian Medical Hall of Fame. He has received many awards over the years, including 15honorary doctoral degrees from universities around the world,the Order of Canada, the Order of Ontario, Knight of the Légiond'Honneur of France, the Gold Bauhinia Star and Justice of the Peace from the Hong Kong SAR Government ****************** OLD Dr. Lap-Chee Tsui has made major contributions in two areas of medical science. He and his colleagues have been instrumental in delineating the mechanisms of control of the formation of y-crystallin, a critical functional protein of the ocular lens. More recently, Dr. Tsui was the leader of a team which succeeded in the localization and clonal isolation of the gene for cystic fibrosis, a highly prevalent and debilitating human genetic disease. This work represents one of the most significant and remarkable achievements of molecular biology and human genetics in recent years. It will almost surely lead to preventive and curative strategies in the near future for a disease that affects a significant fraction of the human population.

David Turpin, Department of Biology, Queen's University, was the first person to definitely document the interactions between photosynthesis, respiration and nitrogen assimilation in plants. His careful measurements of carbon flow in photosynthesis and respiration during nitrogen assimilation and his measurements of metabolite levels in the cells allowed him to formulate a model of the interaction between carbon and nitrogen metabolism that is universally accepted. He has also shown that the ability to acquire limiting nutrients determines the success and structure of phytoplankton communities.

Professor Uffen is one of the outstanding younger geophysicists in Canada today, and is recognized as such all over the world. He has recently been named to the council of the National Research Council. He is, or has been, a member of several committees concerned with research in the earth sciences. In spite of the fact that he is now capably carrying out important administrative responsibilities, his scientific work continues. His most recent contribution is a discussion of the origin of life, and is an indication of his broad range of interests. He would be an asset to the Royal Society of Canada.

Unruh is a theoretical physicist whose work has ranged over a broad area and concentrated on fundamental problems. His most important contributions are a rigorous demonstration that a Kerr Black Hole emits particles, and that an accelerated detector in vacuo at 0°K behaves as if bathed in radiation at a temperature proportional to the acceleration. He has received numerous honours including the Herzberg Medal of the CAP and The Rutherford Medal in Physics.

Dennis E. Vance, Director of the Lipid and Lipoprotein Research Group at the University of Alberta and Heritage Medical Scientist, is an international leader in lipid biochemistry and the foremost author of advanced and undergraduate texts on lipids. He has made substantial contributions to an understanding of glycerophospholipid metabolism by identifying the regulatory and rate limiting enzymes in phosphatidylcholine biosynthesis and by isolating and cloning the enzymes involved in the methylation of phosphatidylethanolamine. He has effectively utilized the readily induced choline deficiency of rat liver to demonstrate an important role for phosphatidylcholine biosynthesis in lipoprotein secretion.

Theodorus van de Ven, PAPRICAN and Pulp and Paper Research Centre, McGill University, is a well known pioneer in bridging the fields of hydrodynamics and colloidal science. He brilliantly created ingenious scientific experimental devices to permit the study of particle-particle interactions. His experimental approach to resolving theoretical issues has been widely used throughout the scientific world. He has achieved milestones in both rigorous theoretical developments and elegant experiments on model and applied systems. His findings have applications in areas as diverse as paper-making, cell adhesion and blood component interactions, and oil dispersion in the processing of Athabaska oil sands. His book, Colloidal Hydrodynamics, is considered a classic on the subject. He is a recipient of the prestigious American Chemical Society Award in Colloid or Surface Chemistry.

Jan Van Kranendonk, Ph.D., Professor of Physics at the University of Toronto, is distinguished for numerous applications of quantum and statistical mechanics to molecular and solid state physics. He pioneered in the field of spin-lattice relaxation effects of nuclear spins in ionic and magnetic crystals, and has studied spin wave interactions as well as the statistical properties of magnetic systems. In molecular physics, he developed the theory of induced absorption and of molecular excitons in crystals. His research work is characterized by penetrating physical insight; his expositions are lucid, and his arguments are always relevant. He was recently awarded the first E. W. R. Steacie Prize for original contributions to the Natural Sciences.

Dr. John Vederas is an organic chemist who has made original and outstanding contributions to bio organic chemistry. He discovered and pioneered the use of oxygen-18 nuclear magnetic resonance isotope shifts for the detection and location of 18O labels introduced during biosynthesis of polyketide antibiotics and amino acid metabolites. He has combined creativity in synthesis with knowledge of enzyme mechanism to develop novel inhibitors for essential bacterial enzymes. Recently he has studied the structure and mode of action of the bacteriocin family of polypeptide antibiotics. John Vederas is also recognized for excellence in undergraduate teaching of organic chemistry.

Dr. Verma is one of our premier plant molecular biologists in Canada. His contributions to our understanding of the molecular biology and biochemistry of Symbiotic nitrogen fixation are numerous and outstanding in quality. He has many 'firsts' to his name, including the first in vitro translation of a plant mRNA, the first description of module-specific host proteins (nodulins) and the first communication between plant and its infecting Rhizobium by random transcription fusions. His national and international reputation has brought him prestigious awards, including an E.W.R. Steacie Fellowship, and invitations to participate in symposia throughout the world.

Professeur titulaire de médecine et de physiologie à l'Université de Montréal, Patrick Vinay est un néphrologue-chercheur de grand talent. Ses excellentes contributions à l'étude du métabolisme intermédiaire du rein et l'originalité de son approche expérimentale lui ont valu une reconnaissance à l'échelle internationale. Il a été un pionnier dans l'utilisation de tubules rénaux isolés pour l'étude du métabolisme de divers segments du néphron. Il s'est signalé par plusieurs autres travaux, dont ses études du profile métabolique rénal chez le chien et le rat au cours de désordres acido-basiques. Un esprit inventif, un enthousiasme intarissable et une capacité de travail peu commune l'ont fait reconnaître par tous ses collègues comme un chercheur exceptionnel.