Purposes of the Study: 1. To design an instrument for classification of
teacher-child verbal interaction formulating classroom
cognitive patterns of communication.
2. To use the designed instrument in a classroom
outside the pilot program to formulate an apparent
teacher-child cognitive pattern of communication. Securing and Treating the Data:
Information basic...
During the six-month period of July through December, 1966,
a study of animals inhabiting laminarian holdfasts in Yaquina Bay,
Oregon, was carried out to determine what animals live in this habitat
and to gain some idea of the factors which influence their presence
and distribution. This study deals with yet...
This study concerns factors affecting production and survival
of ascospores of Elytroderma deformans (Weir) Darker, a needle
cast of ponderosa pine (Pinus ponderosa Laws.).
The results show that summer cooling and a reduction in host
vigor delays and diminishes the number of fertile hysterothecia
produced. Evidence is offered for classification...
Lithia-silica compositions between lithium disilicate and pure
silica were explored theoretically and experimentally, with special
emphasis on structural miscibility. Diffusion couples of vitreous
materials were prepared and annealed. Best success in preparation
was achieved by using electron-bombardment heating in vacuum to
melt the less refractory glass and let it solidify...
Interest in the distribution of Clostridium botulinum type E
was heightened by the sudden outbreak of human botulism from
smoked whitefish chubs and canned tuna fish in 1963. The question
arose as to how widely the organism is distributed among fish
and shellfish in the Northwest and what potential hazard...
A procedure was developed for the isolation and maintenance
of isolated abdomina of the cockroach, Leucophaea maderae. The
degree of injury and loss of body fluid was best minimized by ligating
the animals immediately following the final molt. The nutritional
needs of the isolates were satisfied by filling the animals'...
Existing methods for the estimation of relative participation of
glucose catabolic pathways make use of yield data of respiratory
¹⁴CO₂ or intermediary ¹⁴C products derived from glucose substrates
specifically labeled with ¹⁴C. Cumulative yields of respiratory
¹⁴CO₂ observed at the end of time course of complete substrate
utilization are analyzed...
A graphical method, based on a set of acid-base titrations, is
presented for the determination of the carbon dioxide speciation in
natural solutions. The application of this method, in conjunction
with measurements of the partial pressure of carbon dioxide with
which our solutions were in equilibrium permitted the calculation
of...
A gas chromatographic procedure was developed for the determination
of nanogram quantities of hydrocyanic acid using a
flame ionization detector. Excellent chromatograms were obtained
on a porous polyaromatic polymer column (Porapak Q) at 60°C. The
procedure was employed for the analysis of HCN in aqueous cyanide
solutions. Solutions as low...
Petroleum mulch applied on the soil surface over a row of
planted seeds promotes a more rapid and a more uniform germination
of seeds, enhances elongation of seedlings and in some cases increases
the yield of the crop. The beneficial effects of petroleum
mulch have usually been attributed to increased...