Three commercial sausage starter cultures were grown in
an internal-pH-controlled medium (PHASE 4) and in a soluble
phosphate-buffered medium. The cultures were tested by
comparing viable counts before and after freezing at -40 C
or freeze-drying and subsequent storage for 3 months in the
frozen or dried state. Strains varied...
The purpose of this study was to seek evidence which might
lead to the development of more effective ways of dealing with the
problem of failure to attend school.
Concept of self has long been considered worthy of consideration
in evaluating behavior. It is known that significant experiences
in life...
Coal continues to be burned by direct combustion in packed or moving bed in
small size domestic furnaces, medium size industrial furnaces, as well as small power
stations. Recent stringent restrictions on exhaust emissions call for a better
understanding of the process of combustion of coal in beds.
The present...
The response of three hardwoods from Ghana and a hardwood and
three softwoods from the United States to liquid and gas-phase impregnation
was investigated. Impregnation with liquids included a sink-float
test in a water-glycerine solution and pressure treatment with a copper
sulphate solution and creosote under identical treating conditions.
Flow...
The ability of the fluorescent-coupled lectins wheat germ
agglutinin (WGA) and concanavalin A (Con A) to react with selected
Basidiomycetes, Ascomycetes, and Fungi Imperfecti was evaluated using
pure cultures of thirty-five fungi grown on malt extract agar. WGA,
which is specific for residues of N-acetylglucosamine present in fungal
chitin, reacted...
Mycorrhizal fungi in arid and semiarid rangelands have received little study in southwest Asia and north Africa, although they are important in food production and rangeland productivity. The desert truffles of the genera Terfezia and Tirmania form fruiting-bodies and mycorrhizae with rangeland plants. This thesis treats the taxonomy and the...
Anisogramma anomala causes a stem canker of filberts, Corylus avellana. This disease became a threat to the main U.S. filbert growing region when it was introduced into the Pacific Northwest around 1968. Various methods of artificially inoculating filbert trees and seeds were explored. Less than 1% of potted filbert trees...
Meadowfoam has been identified as a potential oilseed crop for
production on poorly drained soils in areas with cool, moist winters.
The effects of N fertilizer on meadowfoam (Limnanthes alba Benth.)
have been studied in Oregon and Maryland, but the results have not
been consistent with respect to the effects...
The study examined classroom instructional practices and teacher's
professed conceptions about teaching and learning college calculus in
relationship to the implementation of scientific-programmable-graphics (SPG)
calculators. The study occurred at a university not affiliated with any reform
project. The participants were not the catalysts seeking to implement calculus
reform, but expressed...