The ectomycorrhizal fungi Cenococcum geophilum, Hebeloma
crustuliniforme and Laccaria laccata produced ethylene in vitro in
modified Melin-Norkrans liquid medium only if amended with 2.5 to
10 mM methionine; Pisolithus tinctorius failed to produce ethylene
unless the cultures were renewed with fresh methionine-amended
medium prior to ethylene assay. An additional 19...
Purpose of the Study
The purpose of the study was to determine whether there were significant
statistical differences in achievement between first-grade students
taught mathematics by male teachers as compared to first-grade students
taught mathematics by female teachers. A substantive hypothesis was
formed, which stated: "This writer hypothesizes that mean-gain...
The morphology, genesis, and classification of soils
forming in multiple tephra deposits of recent age from
Mt. St. Helens volcano in southwestern Washington Cascade
Mountains was studied.
Soils which occupied well drained and poorly drained
positions on the landscape were characterized according
to their morphology and the results of analyses...
Purpose of the Study
This exploratory study examined whether nontraditional career role
(female) teachers in vocational agriculture differ significantly from
traditional career role (male) teachers in vocational agriculture on
perceived (a) events in career choice, (b) work satisfaction, and (c)
future career plans.
The Procedure
A survey instrument was developed,...
The need for and problems related to string processing are
discussed and a definition of the term "string" is derived. A
brief review of some existing string processing systems leads
to the presentation of a design for a string processing extension
to the programming language Pascal. A rationale for the...