Purpose
The purpose of this study was to investigate the effects of a required
mathematics content course upon prospective elementary school
teachers at Brigham Young University. The investigation consisted of
three major areas: (1) attitudes toward mathematics, (2) basic mathematical
understanding, and (3) the relationship between certain selected
variables.
Procedure...
This investigation was designed to compare the growth in attitudes
toward science and the critical thinking abilities of high
school juniors in chemistry to juniors not enrolled in chemistry.
One hundred and fifty-three chemistry students and 149 non-chemistry
students were randomly selected to participate in the study.
Criterion tests used...
The purpose of this study was to investigate whether or not
change has occurred in the scholastic background and academic ability
of students attending the junior high school summer sessions of
the Santa Monica Unified School District, California, between the
years 1956 and 1962.
Applying a Fisher and Yates Table...
There is considerable evidence that the growth and elongation of
plant roots increases linearly or almost linearly with increasing water
contents or decreasing moisture-tension of soil. If this is true it is
difficult to distinguish the effects of different water contents on absorption
phenomena such as water or ion uptake...
Data were taken, following irradiation exposure to
100r and 300r cumulative dose, on 89 rabbits of three
breeds that vary greatly in body size. Hematological,
intestinal motility, and ear vascularity examinations
were performed. Least square estimates have been obtained and an analysis of variance has been conducted in
order estimate...
The use of radioactive isotopes as tracers in biological systems
has become widespread since the close of World War II. Proper
use of radiotracers requires a fundamental understanding of the physical
nature of radioactivity, the characteristics of ionizing radiation,
and the various methods available for measuring radioactivity.
More importantly, the...
The effects of soil moisture, mineral nutrition and
temperature on the susceptibility of peas to inoculation
with bean yellow mosaic virus (BYMV) by the green peach
aphid, Myzus persicae (Sulz.) were investigated along with
three vector-virus relationships. In addition, a comparative
study was made of two methods of evaluating susceptibility...
The capacity of a vibrating solid to convert its mechanical energy of vibration into heat is called internal friction. Its most common manifestation is the damping effect which causes loss in vibration amplitude of a freely vibrating solid. The damping is a result of the anelastic behaviour of materials. This...