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The normal course of most biologically catalyzed processes is tightly regulated at the genetic and physiological levels. The regulatory mechanisms are diverse, sometimes redundant, and it is becoming increasingly apparent that, at the genetic level, the range of mechanisms may be limited only by the permutations and combina tions available. For each microbial cell, evolution appears to have resulted in maximized advantage to that cell, achieving regulatory balance. Genetic engineering encompasses our attempts to perturb the genetic regulation of a cell so that we may obtain desired other than normal outcomes, such as increased product formation, or new product formation. Following the ground...
Over the past twenty years, there has been a fundamental shift in the institutional organization of historic preservation education. Historic preservation is the most recent arrival in the collection of built environment disciplines and therefore lacks the pedagogical depth and breadth found in allied endeavors such as architecture and planning. As the first degree programs in preservation only date to the 1970s and the first doctoral programs to the 1990s, new faculty are confronted with pedagogical challenges that are unique to this relatively nascent field. Based on a conference that included educators from around the world, Barry L. Stiefel and Jeremy C. Wells now present a collection th...
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Issues for June 1953, June 1955, Oct. 1956- are directory issues of the association's membership.
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