Lewisia kelloggii isozyme variation was studied in six Idaho and seven California populations. Lewisia kelloggii is polyploid, and was treated in analysis as an allotetraploid. The species is highly variable genetically (85% of loci polymorphic, 3.3 alleles per locus) and populations are highly differentiated (Fst = 0.77). All California and the Greencreek Lake populations are diverse, but most...

Constructive reuse (versus degradation) of plant biomass residuals with braided twine, rope, hammocks, baskets, etc.

products, has directed attention to autotrophic microorganisms as possible agents for the production of organic matter on a commercial scale. E. C. Wassink discusses the practical as well as fundamental problems encountered in the culture of algae on a mass scale. The difficulties which arise in attempts to produce dense populations in a short time provide, incidentally, an insight into the com...

The views, opinions and/or findings contained in this report are those of the author(s) and should not be construed as an official Department of the Army position, policy or decision unless so designated by other documentation. Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing...

Since its founding, NASA has been dedicated to the advancement of aeronautics and space science. The NASA Scientific and Technical Information (STI) Program Office plays a key part in helping NASA maintain this important role. The NASA STI Program Office is operated by Langley Research Center, the lead center for NASA's scientific and technical information. The NASA STI Program Office provides ...

ExCAPE proposes a novel approach to software design—computer augmented program engineering, in which a programmer and an automated program-synthesis tool collaborate to generate software that meets its specification. A programmer expresses her insights about the design using synthesis artifacts of different kinds such as programs that may contain ambiguities, declarative specifications of high-...

T HE WR ING of this review was prompted by the possibility that one could skim from the large reservoir of psychological progress a few nuggets which might be of interest to the psychiatric profession, and to indicate just what contributions psychologists are making that might be of interest to psychiatrists. For this reason I have not attempted to review all the chapters but have instead limit...