title: Guerrillas in the mi(d)st: a study of discreet dissension among administrators in academe /

subject:
Universities and colleges
Educational leadership
Dissenters.

abstract:
This qualitative study examines the phenomenon of discreet dissension in the
administration of academe through literature review and the focused reflections of retired,
senior administrators of postsecondary institutions in Ontario. Discretionary decision
making is a large component of senior administrative positions. At times, senior
administrators use their discretion to engage in institutionally endorsed behaviour to
fulfill institutionally sanctioned objectives. At other times, senior administrators use their
discretion to engage in dissenting courses of action, contrary to the prescribed and
codified policies, procedures, and norms of the institution in order to achieve
institutionally endorsed objectives and/or to achieve objectives congruent with individual
values. Discreet dissension emerges as an administrative activity for further
investigation, enhancing the understanding of the art of administration.


title: Genetic variation and evolutionary divergence within and among populations, species, and genera of the Cambarinae

subject:
Crayfish.
Genetics.
Variation (Biology)
Evolution.

abstract:
Seven crayfish species from three genera of the subfamily Cambarinae
were electrophoretically examined for genetic variation at a total of
twenty-six loci. Polymorphism was detected primarily at three loci:
Ao-2, Lap, and Pgi. The average heterozygosities over-all loci for each
species were found to be very low when compared to most other invertebrate
species that have been examined electrophoretically.
With the exception of Cambarus bartoni, the interpopulation genetic
identities are high within any given species. The average interspecific
identities are somewhat lower and the average intergeneric identities are
lower still. Populations, species and genera conform to the expected
taxonomic progression. The two samples of ~ bartoni show high genetic
similarity at only 50 percent of the loci compared. Locus by locus
identity comparisons among species yield U-shaped distributions of
genetic identities.
Construction of a phylogenetic dendrogram using species mean genetic
distances values shows that species grouping is in agreement with
morphological taxonomy with the exception of the high similarity between
Orconectespropinquus and Procambarus pictus. This high similarity
suggests the possibility of a regulatory change between the two species.
It appears that the low heterozygosities, high interpopulation
genetic identities, and taxonomic mispositioning can all be explained on
the basis of low mutation rates.


title: 1,1-enediamines and Î²-substituted enamines in heterocyclic synthesis

subject:
Heterocyclic compounds--Synthesis.
Heterocyclic chemistry.
Amines.

abstract:
The work in this thesis mainly deals with l,l-enediamines and ~ -substituted
enamines (push-pull olefines) and their reactions, leading to the formation of a number of
heterocycles.
Various ~-substituted enamines were prepared by a 'one pot synthesis' in which a
l,l-enediamine presumably acts as an intermediate. These enamines, various substituted
crotonamides and propenamides, were made by using two different orthoesters, various
secondary and primary amines and cyanoacetamide. Their structures, mechanism of
formation and geometry are discussed.
A synthetic route to various unsymmetrically substituted pyridines was examined.
Two substituted pyridinones were obtained by using two different ~-substituted enamines
and cyanoacetamide. In one case a dihydropyridine was isolated. This dihydropyridine, on
heating in acidic conditions, gave a pyridinone, which confirmed this dihydropyridine as
an intermediate in this pyridine synthesis.
A new synthetic method was used to make highly substituted pyridinones, which
involved the reaction of l,l-enediamines with the ~-substituted enamines. A one pot
synthesis and an interrupted one pot synthesis were used to make these pyridinones. Two
different orthoesters and three different secondary amines were used. Serendipitous
formation of a pyrimidinone was observed when pyrrolidine was used as the secondary
amine and triethyl orthopropionate was used as the orthoester. In all cases cyanoacetamide
was used as the carbon acid. This pyridine synthesis was designed with aI, l-enediamine
as the Michael donor and the ~ -substituted enamines as Michael acceptors.
Substituted ureas were obtained in two cases, which was a surprise.
Some pyrimidines were made by reacting two substituted enamines with two
different amidines. When benzamidine was used, the expected pyrimidines were obtained.
But, when 2-benzyl-2-thiopseudourea (which is also an amidine) was used, of the two
expected pyrimidines, only one was obtained. In the other case, an additional substitution
reaction took place in which the S-benzyl group was lost.
An approach to quinazolone and benzothiadiazine synthesis is discussed. Two
compounds were made from 1, I-dimorpholinoethene


title: A biochemical predictor of performance during mesophilic anaerobic fermentation of starch wastewater

subject:
Fermentation.
Starch.
Enzymes.
Biomass energy.
Biochemistry.

abstract:
The aim of this study was to determine the potential of
biochemical parameters, such as enzyme activity and adenosine
triphosphate (ATP) levels, as monitors of process performance in
the Upflow Anaerobic Sludge Blanket (UASB) reactor utilizing a
starch wastewater. The acid and alkaline phosphatase activity
and the ATP content of the UASB sludge were measured in response
to changes in flow rate and nutrient loading. Conventional
parameters of process performance, such as gas production,
acetic acid production, COD, phosphorus, nitrogen and suspended
solids loadings and % COD removal were also monitored. The
response of both biochemical and conventional parameters to
changing process conditions was then compared. Alkaline
phosphatase activity exhibited the highest activity over the
entire study perioda A high suspended solids loading was
observed to upset the system in terms of gas production, acetic
acid production and % COD removala The initial rate of increase
in alkaline phosphatase activity following an increase in loading
was four times as great during process upset than under
conditions of good performance. The change in enzyme actiVity
was also more sensitive to process upset than changes in acetic
acid production. The change in ATP content of the sludge with
time suggested that enzyme actiVity was changing independently of
the actual viable biomass present. The bacterial composition of
the anaerobic sludge granules was similar to that of other sludge
bed systems, at the light and scanning electron microscope level.
Isolated serum bottle cultures produced several acids involved
in anaerobic carbohydrate metabolism. The overall performance of
the UASB system indicated that higher loadings of soluble
nutrients could have been tolerated by the system.


title: A case study of a high functioning autistic female in a games setting

contributor: Department of Graduate and Undergraduate Studies in Education

subject: Autistic children--Education|vCase studies.

subject: Physical education for exceptional children|vCase studies.

abstract:
This study detennined whether or not a high functioning autistic girl can develop game
structure strategies that may allow her to become an active participant in a game or sport
environment. This qualitative case study involved the in-depth observation and
description of one high functioning autistic student whose experience in a game setting
would be studied. The type of case study carried out was a combination of descriptive
and evaluative. This experience was investigated through structured, individual
programming. Through on-site observation, journal entries, and hands on instruction, I
was able to describe what progress the autistic student made in tenns of skill
development. The results of the study demonstrated that a high-functioning autistic
female has the potential to develop the necessary motor skills to participate in the chosen
sport of basketball. The observation results and field notes contributed to a movement
profile which described her habits of body. Teaching strategies and frameworks utilized
during the study were described and listed. Insights and commentary are further
provided. A thorough examination of autism and games programming is provided in the
literature review.


title: A classroom-based investigation of reciprocal teaching at the grade seven level

subject: Seventh grade (Education)

subject: Reading comprehension--Study and teaching (Elementary)

subject: Reading (Elementary)

subject: Teaching.

abstract:
This study assessed the effectiveness of a reciprocal teaching program as a method
of teaching reading comprehension, using narrative text material in a t.ypical grade seven
classroom.
In order to determine the effectiveness of the reciprocal teaching program, this
method was compared to two other reading instruction approaches that, unlike rcciprocal
teaching, did not include social interaction components. Two intact grade scven classes,
and a grade seven teacher, participated in this study. Students were appropriately
assigned to three treatment groups by reading achievement level as determined from a
norm-referenced test. Training proceeded for a five week intervention period during
regularly scheduled English periods. Throughout the program curriculum-based tests
were administered. These tests were designed to assess comprehension in two distinct
ways; namely, character analysis components as they relate to narrative text, and strategy
use components as they contribute to student understanding of narrative and expository
text. Pre, post, and maintenance tests were administered to measure overall training
effects. Moreover, during intervention, training probes were administered in the last
period of each week to evaluate treatment group performance. AU curriculum-based
tests were coded and comparisons of pre, post, maintenance tests and training probes
were presented in graph form. Results showed that the reciprocal group achieved some
improvement in reading comprehension scores in the strategy use component of the tests.
No improvements were observed for the character analysis components of the
curriculum-based tests and the norm-referenced tests. At pre and post intervention,
interviews requiring students to respond to questions that addressed metacomprehension awareness of study strategies were administered. The intelviews were coded and
comparisons were made between the two intelVicws. No significant improvements were
observed regarding student awareness of ten identified study strategies .
This study indicated that reciprocal teaching is a viable approach that can be
utilized to help students acquire more effective comprehension strategies. However, the
maximum utility of the technique when administered to a population of grade seven
students performing at average to above average levels of reading achievement has yet to
be determined. In order to explore this issue, the refinement of training materials and
curriculum-based measurements need to be explored. As well, this study revealed that
reciprocal teaching placed heavier demands on the classroom teacher when compared to
other reading instruction methods. This may suggest that innovative and intensive
teacher training techniques are required before it is feasible to use this method in the
classroom.


title: A cognitive schematic paradigm for expository essay writing in secondary schools

subject: Exposition (Rhetoric)

subject: English language--Rhetoric--Study and teaching (Secondary)

subject: Cognition.

abstract:
The methodology outlined in this study for teaching
exposit ory writing to advanced (five year phase) grade
eleven students is based on the assumption that writing
as a problem solving strategy is a high level cognitive
skill . In adhering to this assumption, a cognitively
based schematic organizer known as a cross-classification
chart was tested for its effectiveness a t the planning
stage of the writing process .
Results were not significant in any of the three
components that were evaluated; however , a post- hoc
analysis undertaken because of recorded observed data
indicated a significant difference in the mean score on
the Organization component for the treatment subgroup
using the cross- classification organizer .
Furthermore, the treatment group's positive response
from the attitude survey towards planning writing is
encouraging enough that replication and extension of
the application of schema theory to wri ting should be
pursued in cross-section and longitud i nal studies.


title: A comparative study of chitin synthase activity in two Mortierella species

subject: Mortierella. Chitin.

abstract:
An in vitro investigation of some important factors controlling the
activity of chitin synthase in cell-free extracts of two Mortierella
species has been carried out. Mixed membrane fractions from mycelial
homogenates of Mortierella candelabrum and Mortierella pusilla were found
to catalyse the transfer of N-acetylglucosamine from UDP-N-acetylglucosamine
into an insoluble product characterized as chitin by its insolubility in
weak acid and alkali, and the release of glucosamine and diacetylchitobiose
on hydrolysis with a strong acid and chitinase, respectively. Apparent Km
values for UDP-GlcNAc were 1.8 mM and 2.0 mM for M. pusilla and
~ candelabrum, respectively. Polyoxin D was found to be a very potent
competitive inhibitor with values of the constant of inhibition, Ki' for both
species about three orders of magnitude lower than theKm for UDP-GlcNAc.
A divalent cation, Mg+2 , Mn+2 or Co+2 , was required for activity.
N-acetylglucosamine, the monomer of chitin, stimulated the activity of the
enzyme. The crude enzyme preparation of ~ candelabrum, unlike that of
~ pusilla, showed an absolute requirement for both Mg+2 and N-acetylglucosamine.
Large differences in response to exogenous proteases were
noted in the ratio of active to inactive chitin synthase of the two species.
A fifteen fold or greater increase was obtained after treatment with acid
protease (from Aspergillussaitoi) as compared to a two- to four-fold
activation of the M. pusilla membrane preparation treated similarly. During storage at 4°C over 48 hours, an endogenous activation of chitin
synthase of ~ pus ilIa was achieved, comparable to that obtained by
exogenous protease treatment. The high speed supernatant of both species
inhibited the chitin synthase activity of the mixed membrane fractions.
The inhibitor of ~ pus ilIa was effective against the pre-activated enzyme
whereas that of M. candelabrum inhibited the activated enzyme. Several
possibilities are discussed as to the role of the different factors
regulating the enzyme activity. The suggestion is made from the properties
of chitin synthase in the two species that in vivo a delicate balance exists
between the activation and inactivation of the enzyme which is responsible
for the pattern of wall growth of each fungus.


subject:
Host-parasite relationships.
Chitin.
Fungi.
Parasites.

abstract:
A comparative study of in vitro chitin synthase activity in mucoraceous
hosts of a mycoparasite:
Chitin synthase, the enzyme responsible for the synthesis of chitin in
fungal cell wall was extracted from young hyphae of Choanephora cucurbitarum
and Phascolomyces articulosus, susceptible and resistant hosts, respectively,
to the mycoparasite, Piptocephalis virginiana. Crude enzyme was identified
and characterized by measuring the incorporation of the substrate
[14C]-UDP-N-acetylglucosamine, into chitin. Most activity occurred in mixed
membrane fraction. Inhibition of activity with Polyoxin D and activation
with proteases, N-acetyl-glucosamine and magnesium and other ions was
observed. Properties of the crude enzyme preparation such as cofactor
requirement, Vmax , apparent Km value for UDP-GlcNAc, inhibition by Polyoxin
D, response to pH and to temperature, and stability at 4°C were determined.
Enzyme activity from both fungi displayed basically the same features as
the corresponding enzymes reported from other mucoraceous fungi. However,
the two preparations from P. articulosus and C. cucurbitarum differed from
each other in their expressed activity (i.e., the preparations from
~ articulosus exhibited higher latency and higher specific chitin synthase
activity than the corresponding preparations from ~ cucurbitarum). Trypsin
was effective in activation only over a narrow concentration range. Acid
protease was the most effec.tive activator. En.dogenous protease estimation indicated higher protease activity in C. cucurbitarum than in
P. articulosus. The suggestion is made that regulation of chitin synthase
activities may be related to host resistance in the mycoparasitic system.


title: A comparative study of protoheme and heme d catalases : role of the heme and the heme pocket in catalysis and ligand binding

subject:
Heme oxygenase.
Catalase.
Ligand binding (Biochemistry)
Catalysis.

abstract:
Catalase dismutes H20 2 to O2 and H20. In successive twoelectron
reactions H20 2 induces both oxidation and reduction at
the heme group. In the first step the protoheme prosthetic
group of beef liver catalase forms compound I, in which the
heme has been oxidized from Fe3+ to Fe4+=0 and a porphyrin
radical has been created. Compound II is formed by the oneelectron
reduction of comp I. It retains Fe4+=0 but lacks the
porphyrin radical and is catalytically inert. Molecular
structures are available for Escherichia coli Hydroperoxidase
II, Micrococcus Iysodeiktus, Penicillium vitale and beef liver
enzymes, which contain different hemes and heme pockets.
In the present work, the pockets and substrate access channels
of protoheme (beef liver & Micrococcus) and heme d (HPII of E.
coli and Penicillium) catalases have been analysed using
Quanta™ and CharmMTM molecular modeling packages on the
Silicon Graphics Iris Indigo 2 computer. Experimental studies
have been carried out with two catalases, HPII (and its
mutants) and beef liver. Fluoride and formate' are inhibitors of
both enzymes, and their binding is modulated by the heme and
by distal residues N201 & H128. Both HPII and beef liver
enzymes form compound I with H202 or peracetate. The reduction of beef liver enzyme compound I to II and the decay
of compound II are accelerated by fluoride. The decay of
compound II is also accelerated by formate, and this reagent
acts as a 2-electron donor towards compound I of both
enzymes.
It is concluded that heme d enzymes (Penicillium and HPII of E.
coli) are formed by autocatalytic transformation of protoheme
in a modified pocket which contains a characteristic serine
residue as well as a partially occluded heme channel. They are
less active than protoheme enzymes but also do not form the
inactive compound II species. Binding of peroxide as well as
fluoride and formate is prevented by mutation of H128 and
modulated by mutation of N201.


title: A comparison between diatom inferred ph changes and diatom populations in brownwater and clearwater lakes

subject:
Diatoms--Ontario--Wawa Region.
Lakes--Ontario--Wawa Region.
Hydrogen-ion concentration.
Limnology--Ontario--Wawa Region.

abstract:
The objective of this study was to determine whether clearwater
and brownwater lakes differed in their rate of acidification as
inferred by subfossil diatoms analyzed in recent downcore sediments.
Differences between associations of diatom populations in brownwater
and clearwater environments were characterized.
Sediment cores were taken from four lakes located north and east
of Lake Superior, near Wawa, Ontario. Two of these lakes were humicrich,
brownwater lakes ( lakes U1 and CB2). The two other lakes were
clearwater lakes ( lakes Xl and CF). The regression of Nygaard log
index-alpha for surficial diatom sediments on observed pH ( Inferred
pH = 6.57 - 0.82 log index-alpha ), was utilized to infer lake pH in
recent sediments of these lakes.
Upon analyzing the downcore diatoms, it was discovered that no
significant change, in downcore diatom inferred pH, could be detected
in the two brownwater lakes. In contrast, the two clearwater lakes
showed significant shifts in downcore diatom inferred pH. In one of
these lakes, pH had dropped from 5.3 to 4.5, in the top 9.0 cm
of the core, while in the second lake, pH had dropped from 5.4 to
5.0 in the top 1.5 cm of the core. These findings suggested that
humic substances, found in brownwater lakes, imparted a buffering
capacity to these lake waters. In the clearwater lakes, the decrease
in pH was very probably a consequence of acid precipitation.
The Ambrosia rise ( circa 1890 ) occurred at the same depth in
both brownwater lakes ( 11.0 - 12.0 cm). In both clearwater lakes,
the Ambrosia rise occurred at a depth of 14.0 - 15.0 cm. This
suggested a lower sedimentation rate in the brownwater lakes.
pH influenced the total percentage composition of diatom pH
indicator groups. Greater numbers of alkaliphilous taxa were found
in less acidic lakes ( e.g. Lake Ul ), While greater numbers of acidloving
forms were found in highly acidic lakes ( e.g. Lake Xl ).
There was a greater abundance of indifferent forms in the brownwater
lakes, than in the clearwater lakes.
A number of diatom genera and species were found to be associated
with either clearwater or brownwater conditions.
The centric diatom, ~elosira distans, significantly increased in
abundance in the recent sediments of both clearwater lakes. This may
be indicating a shift toward a more oligotrophic state within these
acidic, clearwater lakes.
This study suggested that a pH index based on subfossil diatoms
may be a sensitive indicator of changing lake pH. This study also
indicated that humic substances may playa more important role, than
previously acknowledged, in controlling the pH dynamics of lake waters,
and in determining diatom populations.


title: A comparison of cognitive processes and components of neurological maturation in 3-and-11 year-old children

subject:
Cognition in children.
Maturation (Psychology)
Psychological tests for children.
Developmental neurobiology.

abstract:
The relationship between the child's cogni tive development and
neurological maturation has been of theoretical interest for many
year s. Due to diff iculties such as the lack of sophisticated
techniques for measur ing neurolog ical changes and a paucity of
normative data, few studies exist that have attempted to
correlate the two factors. Recent theory on intellectual
development has proposed that neurological maturation may be a
factor in the increase of short-term memory storage space.
Improved technology has allowed reliable recordings of
neurolog ical maturation.. In an attempt to correlate cogni tive
development and neurological maturation, this study tested 3-and
II-year old children. Fine motor and gross motor short-term
memory tests were used to index cogni tive development.
Somatosensory evoked potentials elici ted by median nerve
stimulation were used to measure the time required for the
sensation to pass along the nerve to specific points on the
somatosensory pathway. Times were recorded for N14, N20, and P22
interpeak latencies. Maturation of the central nervous system
(brain and spinal cord) and the peripheral nervous system
(outside the brain and spinal cord) was indi~ated by the
recorded times. Signif icant developmental di fferences occurred
between 3-and ll-year-olds in memory levels, per ipheral
conduction velocity and central conduction times. Linear
regression analyses showed that as age increased, memory levels
increased and central conduction times decreased. Between the
ll-year-old groups, there were no significant differences in
central or peripheral nervous system maturation between subjects
who achieved a 12 plus score on the digit span test of the WISC-R
and those who scored 7 or lower on the same test. Levels
achieved on the experimental gross and fine motor short-term
memory tests differed significantly within the ll-year-old group.


title: A comparison of electrophysiological changes during the sleep onset period of psychophysiological insomniacs, psychiatric insomniacs and normal sleepers

subject: Sleep--Stages. Insomnia. Electrophysiology.

abstract:
The EEG of the sleep onset period of
psychophysiological insomniacs, psychiatric insomniacs and
controls was compared using power spectral analysis (FFT).
Eighteen drug-free subjects were equally divided into three
groups according to their responses in the Brock Sleep and
Insomnia Questionnaire, the Minnesota Multiphasic
Personality Inventory and the Sleep Disorders Questionnaire.
Group 1 consisted of psychophysiological insomniacs, group 2
included insomniacs with an indication of psychiatric
disturbances, and group 3 was a control group. EEG, EOG and
EMG were recorded for two consecutive nights. Power
spectral analysis (FFT) of EEG at C4 from the sleep onset
period (defined as lights out to the first five minutes of
stage 2) was performed on all standard frequency bands,
delta: .5-4 Hz; theta: 4-8 Hz; alpha: 8-12 Hz; sigma: 12-15
Hz beta: 15-25 Hz. Psychophysiological insomniacs had less
alpha during wakefulness than the other two groups and did
not show the dramatic drop in alpha across the sleep onset
period, which characterizes normal sleep. They also had
less delta, especially during stage 2 on night 2. They also
showed less delta in the last quartile of the chronological
analysis of the sleep onset period. Psychiatric insomniacs
showed lower relative beta power values overall while
psychophysiological insomniacs showed higher relative beta
power values during wakefulness. This microanalysis
11
confirms that the sleep onset period is generally similar
for psychiatric insomniacs and normal sleepers. This may be
due to the sample of psychiatric insomniacs being
heterogeneous or may reflect a sleep onset system that is
essentially intact. Psychophysiological insomniacs have
higher cortical arousal during the sleep onset period than
do the psychiatric insomniacs and the controls. Clear
differences in the sleep onset period of psychophysiological
insomniacs exist. The dramatic changes in power values in
these two groups are not seen in the psychophysiological
insomniacs, which may make the discrimination between
wakefulness and sleep more difficult.


title: A comparison of life satisfaction, job satisfaction, and happiness using demographic variables

subject:
Job satisfaction.
Teachers--Job satisfaction.
Happiness.

abstract:
This study examined the interrelationships among life satisfaction,
job satisfaction, and happiness and the selected demographic
variables of income, age, marital status, education, sex, job tenure,
job title, type of school, and location of employment. Survey data
were collected from 1,993 elementary, high school, and community
college teachers in the southern Ontario area, representing ten
public school boards, three Roman Catholic school boards and three
community colleges.
Several theories were utilized in developing thirteen
hypotheses and eleven experimental hypotheses. A thorough review
of the literature (to January, 1980) was undertaken and major
conclusions noted.
Hoppock's (1935) Job Satisfaction Measure, Gurin, Veroff,
and Feld's (1960) Happiness Scale, and Converse and Robinson's (1965)
Life Satisfaction Scale were used as the instrument. Chi-square analysis
was employed as the statistical method.
Indicative of the findings: the level of education taught was
significantly related to all three organizational variables, sex was
unrelated to life satisfaction though positively related to job
satisfaction, and income was found not to be related to either
happiness or life satisfaction.
A minority of findings were contrary to hypothesized relationships.
Specifically, age was found to be unrelated to any of the three
organizational variables, and educational achievement was not significantly
related to happiness. A model was developed to illustrate the interrelationships
of the organizational and demographic variables. This model was
designed specifically to reflect teacher attitudes, though it may
have reasonable application for other relatively homogeneous groups
of employees such as nurses, engineers, or social workers.


title: A comparison of two computer-assisted remedial reading programs for adolescent unskilled readers : component reading skills and repeated reading

subject: Reading--Computer-assisted instruction.

subject: Reading--Ability testing.

subject: Reading--Remedial teaching.

subject: Remedial teaching--Computer-assisted instruction.

abstract:
This study compared the relative effectiveness of two
computerized remedial reading programs in improving the
reading word recognition, rate, and comprehension of
adolescent readers demonstrating significant and longstanding
reading difficulties. One of the programs
involved was Autoskill Component Reading Subskills Program,
which provides instruction in isolated letters, syllables,
and words, to a point of rapid automatic responding. This
program also incorporates reading disability subtypes in
its approach. The second program, Read It Again. Sam,
delivers a repeated reading strategy. The study also
examined the feasibility of using peer tutors in
association with these two programs.
Grade 9 students at a secondary vocational school who
satisfied specific criteria with respect to cognitive and
reading ability participated. Eighteen students were
randomly assigned to three matched groups, based on prior
screening on a battery of reading achievement tests. Two I I
groups received training with one of the computer
programs; the third group acted as a control and received
the remedial reading program offered within the regular
classroom. The groups met daily with a trained tutor for
approximately 35 minutes, and were required to accumulate
twenty hours of instruction. At the conclusion of the program, the pretest battery was repeated.
No significant differences were found in the treatment
effects of the two computer groups. Each of the two
treatment groups was able to effect significantly improved
reading word recognition and rate, relative to the control
group. Comprehension gains were modest. The treatment
groups demonstrated a significant gain, relative to the
control group, on one of the three comprehension measures;
only trends toward a gain were noted on the remaining two
measures.
The tutoring partnership appeared to be a viable
alternative for the teacher seeking to provide
individualized computerized remedial programs for
adolescent unskilled readers. Both programs took advantage
of computer technology in providing individualized drill
and practice, instant feedback, and ongoing recordkeeping.
With limited cautions, each of these programs
was considered effective and practical for use with
adolescent unskilled readers.


title: A contingency model of job satisfaction

subject:
Job satisfaction.
Employee attitude surveys.
Decision making.

abstract:
The present research study was designed to test a contingency
model of job satisfaction based on participation in decision making
as the antecedent variable and job involvement as the intervening
variable. The instruments used to measure the variables were the
participation in decision making scale developed by Siegel and Ruh
(1973), the job involvement scale by Lodahl and Kejner (1965) and the
job satisfaction construct derived from Hoppock (1935).
The findings indicate that statistically significant correlations
do exist for the 1995 educators surveyed in this study. Educators who
reported high levels of participation in decision making consistently
reported high levels of job involvement (p!: 0.001). Also, teachers
reporting high levels of job involvement consistently scored high on
their levels of job satis faction (p!: 0.001). All major hypotheses were
sUPFOrted by the data. Through exploratory hypotheses, the study attempted
to develop statements of relationships between criteria of job satisfaction
and sex and marital status of employees in the system. The hypotheses
received only minimal support, but the results did highlight the
impracticability of attempting to develop any such relationships without
using definite personality and situational variables as moderators.
Differences between male and female socialization, sex discrimination
and multiplicity of roles are briefly discussed as possible explanations
for the reported findings.


title: Acquisition and transfer of experiential learning from rock climbing to the corporate workplace

subject:
Experiential learning.
Rock climbing.
Corporate culture.

abstract:
There were three purposes to this study. The first purpose was to
determine how learning can be influenced by various factors i~ the rock
climbing experience. The second purpose was to examine what people can
learn from the rock climbing experience. The third purpose was to investigate
whether that learning can transfer from the rock climbing experience to the
subjects' real life in the workplace.
Ninety employees from a financial corporation in the Niagara Region
volunteered for this study. All subjects were surveyed throughout a one-day
treatment. Ten were purposefully selected one month later for interviews.
Ten themes emerged from the subjects in terms of what was learned.
Inspiration, motivation, and determination, preparation, goals and limitations,
perceptions and expectations, confidence and risk taking, trust and support,
teamwork, feedback and encouragement, learning from failure, and finally,
skills and flow. All participants were able to transfer what was learned back to
the workplace.
The results of this study suggested that subjects' learning was influenced
by their ability to: take risks in a safe environment, fail without penalty, support
each other, plan without time constraints, and enjoy the company of fellow
workers that they wouldn't normally associate with.
Future directions for research should include different types of treatments
such as white water rafting, sky diving, tall ship sailing, or caving.


title: A cytophylogenetic study of Pacific black flies (Diptera: Simuliidae)

subject: Simuliidae--Cytology. Simuliidae--Phylogeny.

abstract:
The sequential banding patterns of the larval salivary gland polytene
chromosomes of seven species of Inseliellum (Diptera: Simuliidae) were mapped. This
was completed through the comparison with the standard maps of an eighth species of
Inseliellum, Simulium cataractarum. During chromosomal analysis, both fixed and
floating inversions were identified. A floating inversion (IIL-l ex,2ex) revealed a cytotype
within Simulium exasperans that is distributed between two islands, Moorea and Tahiti.
Inversion data revealed three shared fixed inversions that could be used as phylogenetic
characters. In addition, the placement of a chromosomal landmark (the nucleolar
organizer, or NO) was used as a phylogenetic character. The result of a cytophylogenetic
(transformational) analysis showed two groups: the NO-IL group, and the NO-IS group.
A combined phylogeny was created using the published morphological data and the
cytological data of the eight species. The combined tree did not differ from the
morphological data only tree. Possible routes of dispersal are hypothesized using
geological, chromosomal, and phylogenetic data. These data showed a general pattern of
dispersal and colonization from older islands to younger islands, with one possible
instance of dispersal from younger to older islands. It is postulated that inter-island
speciation has allowed this dispersal and colonization, but intra-island speciation has
created the diversity seen in Inseliellum.


title: A dimensional analysis of the benzylic hydroxylase active site in mortierella isabellina

subject:
Mortierella isabellina.
Cytochrome P-450.
Enzymes.
Benzylic hydroxylase.

abstract:
The spatial limits of the active site in the benzylic hydroxylase
enzyme of the fungus Mortierella isabellina were investigated. Several
molecular probes were used in incubation experiments to determine the
acceptability of each compound by this enzyme. The yields of benzylic
alcohols provided information on the acceptability of the particular
compound into the active site, and the enantiomeric excess values
provided information on the "fit" of acceptable substrates.
Measurements of the molecular models were made using Cambridge
Scientific Computing Inc. CSC Chem 3D Plus modeling program.
i
The dimensional limits of the aromatic binding pocket of the benzylic
hydroxylase were tested using suitably substituted ethyl benzenes. Both
the depth (para substituted substrates) and width (ortho and meta
substituted substrates) of this region were investigated, with results
demonstrating absolute spatial limits in both directions in the plane of the
aromatic ring of 7.3 Angstroms for the depth and 7.1 Angstroms for the
width. A minimum requirement for the height of this region has also
been established at 6.2 Angstroms.
The region containing the active oxygen species was also
investigated, using a series of alkylphenylmethanes and fused ring
systems in indan, 1,2,3,4-tetrahydronaphthalene and benzocycloheptene
substrates. A maximum distance of 6.9 Angstroms (including the 1.5
Angstroms from the phenyl substituent to the active center of the heme
prosthetic group of the enzyme) has been established extending directly in
ii
front of the aromatic binding pocket. The other dimensions in this region
of the benzylic hydroxylase active site will require further investigation to
establish maximum allowable values.
An explanation of the stereochemical distributions in the obtained
products has also been put forth that correlates well with the experimental
observations.


title: Administrative and political control over federal government contracting in Canada

subject:
Public contracts--Canada.
Government purchasing--Canada.


title: Aerobic exercise in adolescence : self-efficacy and stage of change

subject:
Aerobic exercises.
Exercise for youth.
Self-efficacy.

abstract:
The purpose of this cross-sectional exploratory study was to
examine the relationships among self-efficacy, stage of change, and
exercise behaviour in a sample of younger (Grade 9) and older (Grade 12)
adolescents.
A secondary objective of this study was to apply the
transtheoretical model of Stage of Change, as a measure of intention to
change, in order to discover the applicability of the model to an
adolescent cohort in relation to exercise behaviour. This five-stage
model is a self-report measure of an individual's readiness to adopt a
new behaviour (e.g., regular exercise). The transtheoretical model
incorporates Bandura's self-efficacy factor, which is purported to be a
predictive measure of exercise behaviour and a covariant of stage.
Exercise behaviour was measured with the Physical Activity Scale,
and the University of Rhode Island Change Assessment Scale (URleA) was
used to measure the stage of change and self-efficacy variables. The
results of this study indicated significant differences between younger
and older adolescents, and between males and females in their exercise
behaviour. No significant differences were found for grade and gender
on stage of change as measured by either a single-item question or a
continuous measure of stage. Although grade and gender subgroups were
not significantly different in their self-efficacy, significant
interaction was found in the grade*gender variable.


title: A fast atom bombardment mass spectrometry study of tris (3, 6-dioxaheptyl) amine-alkali metal halide complexes and hydrogen bonded complexes

subject:
Metal halides.
Hydrogen bonding.
Mass spectrometry.
Alkali metals.
Amines.

abstract:
The objective of this thesis was to demonstrate the
potential of fast atom bombardment mass spectrometry (FABMS)
as a probe of condensed phase systems and its possible uses
for the study of hydrogen bonding. FABMS was used to study
three different systems. The first study was aimed at
investigating the selectivity of the ligand
tris(3,6-dioxaheptyl) amine (tdoha) for the alkali metal
cations. FABMS results correlated well with infrared and nmr
data. Systems where a crown ether competed with tdoha for a
given alkali metal cation were also investigated by fast atom
bombardment. The results were found to correlate with the
cation affinity of tdoha and the ability of the crown ether to
bind the cation.
In the second and third studies, H-bonded systems
were investigated. The imidazole-electron donor complexes
were investigated and FABMS results showed the expected H-bond
strength of the respective complexes. The effects of
concentration, liquid matrix, water content, deuterium
exchange, and pre-ionization of the complex were also
investigated. In the third system investigated, the abundance
of the diphenyl sulfone-ammonium salt complexes (presumably
H-bonded) in the FABMS spectrum were found to correlate
with qualitative considerations such as steric hindrance and
strength of ion pairs.


title: A geochemical and petrological study of volcanic rocks in the Beardmore-Geraldton Archaean Greenstone Belt, Northwestern Ontario

subject: Volcanic ash, tuff, etc.--Ontario--Beardmore-Geraldton

subject: Geochemistry--Ontario--Beardmore-Geraldton Belt.

subject: Geology, Stratigraphic|yArchaean.

subject: Geology--Ontario--Beardmore-Geraldton Belt.

subject: Petrology--Ontario--Beardmore-Geraldton Belt.

abstract:
Three repetitive sequences of northward youngIng, east striking, linear,
volcano-sedimentary units are found in the late Archaean BeardmoreGeraldton
greenstone belt, situated within the Wabigoon subprovince of
the Superior Province of northwestern Ontario. The volcanic components
are characterised by basaltic flows that are pillowed at the top and
underlain by variably deformed massive flows which may In part be
intrusive. Petrographic examination of the volcanic units indicates regional
metamorphism up to greenschist facies (T=3250 C - 4500 C, P=2kbars)
overprinted by a lower amphibolite facies thermal event (T=5750 C,
P=2kbars) confined to the south-eastern portion of the belt.
Chemical element results suggest olivine, plagioclase and pyroxene are
the main fractionating mineral phases. Mobility studies on the varIOUS
chemical elements indicate that K, Ca, Na and Sr are relatively mobile,
while P, Zr, Ti, Fet (total iron = Fe203) and Mg are relatively immobile.
Discriminant diagrams employing immobile element suggests that the
majority of the samples are of oceanic affinity with a minor proportion
displaying an island arc affinity.
Such a transitional tectonic setting IS also refle.cted in REE data where
two groups of volcanic samples are recognised. Oceanic tholeiites are LREE
depleted with [La/Sm] N = 0.65 and a relatively flat HREE profile with
[Sm/Yb] N = 1.2. Island arc type basalts (calc-alkaline) are LREE enriched,
with a [La/Sm] N = 1.6, and a relatively higher fractionated HREE profile
with [Sm/Yb] N = 1.9.
Petrogenetic modelling performed on oceanIC tholeiites suggests
derivation from a depleted spinel lherzolite source which undergoes 20%
partial melting. Island arc type basalts can be derived by 10% partial
melting of a hypothetical amphibolitised oceanic tholeiite source.
The majority of the volcanic rocks in the Beardmore-Geraldton Belt are
interpreted to represent fragments of oceanic crust trapped at a consuming
plate margin. Subsequent post accretionary intrusion of gabbroic rocks
(sensu lato) with calc-alkaline affinity is considered to result in the
apparent hybrid tectonic setting recognized for the BGB.


title: A geochemical and paleoceanographic investigation using marine molluscs of the late Quaternary marine submergences Quebec, Ontario, British Columbia

subject:
Geochemistry--Canada.
Paleoceanography--Canada.
Mollusks--Canada.
Geology, Stratigraphic|yQuaternary.

abstract:
Sedjrrlents deposited in the Late Quaternary marine sUbrnergences that
follov'ted the deglaciation of Ontario} Quebec., and 6ritlst-1 Columbia often
contaln an abundant nlarlne invertebrate macrofauna. The rnacrofauna~
dotYllnated by aragonitic pelecypods} is fully preserved In their original
mineralogy and cherrlistry 8S deternl1ned by x-ray dlffractlon., scannlng
electron tl-,lcroscoDY., trace and r1l1 nor elet11ent analyses and stable isotopes.
Ttle trace elernent and stable isotope geochen-Ilstry of chernlcal1y
unaltered aragorlitlc molluscs can be used to determine paleoter1-lperatures
and paleosallnltles." HO\Never} corrections need to be tllade \fvtlen
deterrTIlnlng oxygen-isotope paleotenlperi:ttures due to the lnfluence of
isotopically 11gtlt glaciol rneltv-laters and reduced sal1nltles. Ttle eastern
Laurentide Ice Sheet probably had an o:~ygen lS0tOP1C composition as low as
-8e) 0/00 (Sr1[IW). In additl0fl} corrections need to be rnade to the carbonlsotope
values, before salinity deterrnlnatlons are t11ade., due to the
reJjuctlon of the terrestrial carbon bl0rnass during glac1al maxlrna.
Using geochernlcal data frot11 537 marlne n-'8crolnvertebrates frorTI 72
localities in soutt-,easter Ontarl0 and southern Quebec, it tras been
deterrnined that the Late Quaternary Char1lplaln Sea \N6S density stratified
along salinity and temperatlJre gradients. The deep-\h/aters of tt-,e Charnplaln
Sea tlad salinities that ranged frorn 31 to 36 ppt} and terrlperatures of 00 to
5°C. Conversely.. the st1alloy./-\f*later regirrle of ttle Ctlarnplaln Sea tlad
sal1nltles that ranged fron-, 24 to 33 ppt} Y.tltt1 terrlperatures ranglng from 5°
to 15°C.
Tr,8 rrlajorl rnlnor1 and trace e1et1-,ent geochernlcal analysls of 155
marine lnvertebrates frorn 4 10C611t1es of tt-,e Late Quaternary Ft. Langley Forrnatlon and Capl1ano Sedlments;. souttl\Nestern Brltlsh Columblal suggest l
t~lat the 'waters of the o-,arlne lnundation that fol1o....ved the retreating
Cordl11eran Ice Sheet had sal1nltles ranglng frorn 32 to 3f. DPt.


title: Aging policy: a case study of co-ordination in Canadian governments

subject: Older people--Canada--Case studies.

subject: Federal government--Canada--Case studies.

subject: Aging.

abstract:
ABSTRACT
Canada is an aging society. The number of people aged
sixty-five and over is rising, while the number of people under
twenty is declining. These two concurrent changes in the age
structure have produced a sh~ft in the demographic composition
of Canada which is commonly referred to as the aging phenomenon.
Regardless of whether or not the number of people under
twenty continues to decline, the number of elderly in Canada
will almost double over the next twenty years. This rapidly
growing elderly clientele will doubtless have an impact on
Canadian governments. Federal, provincial and municipal
governments are presently providing a variety of programs that
have a special bearing on the aged and most senior citizens are
beneficiaries of one or more of these programs. The
ramifications of a rapidly growing elderly clientele are
obvious.
In order to cope with the impact of a significant
increase in the number of elderly persons, the development and
implementation of aging policy must be co-ordinated at each
level of government and between and among levels of government.
If aging policy is not co-ordinated, the results are likely to
be: inappropriate policy decisions; duplication and overlap;
and, ineffective and irresponsive services. No one benefits
from these results. The need for co-ordination is apparent.
The purpose of this thesis is to examine existing
governmental efforts to co-ordinate policy in the field of
aging. These efforts are examined by focusing on interactions
directed at co-ordination between and among major actors in
aging policy. A framework is used to structure the description
and analysis of these interactions. The variables of
formalisation and intensity and the concept of power are
instrumental in analysing interactions for co-ordination. The
underlying intent of this thesis is to discover some of the
main gaps in existing governmental efforts to co~ordinate aging
policy.
Gaps are, in fact, discovered. Several explanations
for the existence of gaps in interactions for co-ordination are
discussed. A major hypothesis involving a relationship between
a bureaucratic form of organisation and interactions for coordination
is suggested. Finally, three recommendations for
improving co-ordination in aging policy are offered.


title: Agrarian revolution in Central America : a comparison of Nicaragua and Honduras using Jeffery Paige's theory of Agrarian revolution

subject:
Agriculture--Central America.
Agriculture--Nicaragua.
Agriculture--Honduras.
Peasantry--Central America.
Peasantry--Nicaragua.
Peasantry--Honduras.
Revolutions.

abstract:
ABSTRACT
In 1979 Nicaragua, under the Sandinistas, experienced a
genuine, socialist, full scale, agrarian revolution.
This thesis examines whether Jeffery Paige's theory of
agrarian revolutions would have been successful in
predicting this revolution and ln predicting
non-revolution in the neighboring country of Honduras.
The thesis begins by setting Paige's theory in the
tradition of radical theories of revolution. It then
derives four propositions from Paige's theory which
suggest the patterns of export crops, land tenure changes
and class configurations which are necessary for an
agrarian and socialist revolution. These propositions
are tested against evidence from the twentieth century
histories of economic, social and political change in
Nicaragua and Honduras. The thesis concludes that Paige's
theory does help to explain the occurrence of agrarian
revolution in Nicaragua and non-revolution in Honduras. A
fifth proposition derived from Paige's theory proved less
useful in explaining the specific areas within Nicaragua
that were most receptive to Sandinista revolutionary
activity.


title: A high resolution study of the 4Â¹â   bands of Â¹Â³CHâ  O and CHâ  Â¹â ¸O

subject:
Formaldehyde.
Ultraviolet spectra.


title: Alicaligenes faecalis : identification and study of its antagonistic properties against Botrytis cinerea

subject:
Gram-negative bacteria.
Bacterial genetics.
Botrytis cinerea.

abstract:
A Gram negative aerobic flagellated bacterium with fungal growth inhibitory
properties was isolated from a culture of Trichoderma harzianum. According to
its cultural characteristics and biochemical properties it was identified as a strain
of Alcaligenes (aeca/is Castellani and Chalmers.
Antisera prepared in Balbc mice injected with live and heat-killed bacterial cells
gave strong reactions with the homologous immunogen and with ATCC 15554,
the type strain of A. taeca/is, but not with Escherichia coli or Enterobacter
aerogens in immunoprecipitation and dot immunobinding assays.
Growth of Botrytis cinerea Pers. and several other fungi was significantly
affected when co-cultured with A. taeca/is on solid media. Its detrimental effect
on germination and growth of B. cinerea has been found to be associated with
antifungal substances produced by the bacterium and released into the growth
medium.
A biotest for the antibiotic substances, based on their inhibitory effect on
germination of B. cinerea conidia, was developed. This biotest was used to study
the properties of these substances, the conditions in which they are produced,
and to monitor the steps of their separation during extraction procedures.
It has been found that at least two substances could be involved in the
antagonistic interaction. One of these is a basic volatile substance and has been
identified as ammonia. The other substance is a nonvolatile, dialysable, heat
stable, polar compound released into the growth medium.
After separation of growth medium samples by Sephadex G-10 column
chromatography a single peak with a molecular weight below 700 Daltons
exhibited inhibitory activity. From its behaviour in electrophoretic separation in
agarose gels it seems that this is a neutral or slightly positively charged.


title: A mass spectrometric study of some pesticides /|nK. S. Subramanian. -- 260 St. Catharines, Ont. : [s. n.],

subject:
Pesticides.
Mass spectrometry.

abstract:
The fragmentation processes in the mass spectra of
a series of organophosphorus, organochlorine, thio and
dithiocarbamate as well as a number of miscellaneous pesticides
have been studied i n detail by using the Bendix timeof-
flight, MS-12 single-focussing and MS-30 double-focussing
mass spectrometers. Interpretation of all the spectra have
been presented; their mode s of dissociation elucidated,
aided by metastable transitions wherever possible and the
structures of the various f ragmentation species postulated
wherever f easible. The fragmentation mechanisms are based
on the concepts of inductive, resonance and steric ef~ects.
Multiple bond cleavages accompanied by simultaneous bond
formation and rearrangement reactions involving cycli c t r ansition
states have clarified t he formation of various ions .
Due emphasis has been placed on the effect of the functional
groups or substituents in altering the mass spectral behaviour
of the pesticides as they form the basis for the identifi cation
of the otherwise identical pesticides.
The organophosphorus pesticides which have been
studied include i) the phosphates (eg: DDVP and Phosdrin );
ii) phosphorothionates (eg: Parathion, 0-2, 4 dichloro
phenyl 0, O-diethyl thionophosphate); iii) phosphorothioites
(eg: Tributyl phosphorotrithioite); i V) phosphorothioates
(eg: Ethion) and v) phosphorodithioates (eg: Carbophenolthion).
Cleavages and rearrangements of the ester moiety dominate the spectrum of phosdrin while that of DDVP is
+
dominated by t he fragmentation modes of the (OH30)2P=0
+
moiety. Fragmentation §f the (CH30)2P=S characterises
the spectrum of (OH30)2"P -Cl while cleavages of the
+
(C2H50 )2P=S species mark the spectra of parathion and
0-2, 4- di chlorophenyl O, O-diethyl thiophosphate. The 0(,
cl eavages of the thioether f unction rather than
+
cleavages of the (C2H50)2P=S signify the spectrum of carbophenolthion.
Tributyl phosphorotrithioite behaves more like
an aliphatic hydrocarbon than like the corresponding phosphites.
The isopropyl and butyl esters of 2, 4 dichlorophenoxy
acetic acid show cleavage and rearrangement ions
typical of an ester. In spite of its structural similari ty
to pp' - DDT and pp' - DDD, Kalthane has a completely
different mass spectral behaviour due to the influence of
its hydroxyl function.
The thiocarbamate pesticides studied include Eptam
and Perbulate. Both are structurally similar but having
different alkyl substituents on nitrogen and sulphur. This
structurQlsimilarity leads to similar types of (N-C), (O-S)
and (S-alkyl cleavages). However, perbulate differs from
Eptam in showing a rearrangement ion at mle 161 and in forming
an isocyanate ion as the base peak. In Eptam the base
peak i s the alkyl ion. The dithiocarbamate, Vegadex,
resembles the thiocarbamates in undergoing simple cleavages but it differs from them in having a weak parent ion;
in the formation of its base peak and in undergoing a series
of rearrangement reactions.
The miscellaneous pesticides studied include
1-Naphthalene acetic aCid- methyl ester, Fiperonyl butoxide
and Allethrin. The ester i s stable to electron impact and
shows only fewer ions. Piper onyl butoxide, a polyether,
shows characteristics of an et her, alcohol and aldehyde .
Allethrin is regarded as an ester of the type R-C-O-R1 with
n
R being a substituted cyclopr opane moiety and o Rt, a
substituted cyclopentenone mOiety. Accordingly it shows
cleavage ions typical of an aliphatic ester and undergoes
bond ruptures of the cyclic moieties to give unusual ions.
Its base peak is an odd electron ion, quite contrary to
expectations.


title: A method of evaluating psychomotor tooth preparation skills in preclinical dental programs

subject:
Dental cavity preparation.
Dentistry--Study and teaching.
Dental health education.

abstract:
Preclinical and clinical tooth
important and significant aspect of
preparation is an
a dental student's
education. The associated procedures rely heavily on the
development of particular psychomotor skills. The most
common format of instruction and evaluation in tooth
preparation at many Dental Faculties, emphasizes the product
(tooth preparation) and associates performance with
characteristics of this product.
This integrated study examines which skills should be
developed and how a course of instruction can best be
structured to develop the necessary skills.
The skills which are identified are those necessary
for tooth preparation are selected from a psychomotor
taxonomy.
The purpose of evaluating these skills is identified.
Behavioral objectives are set for student performance and
the advisability of establishing standards of performance is
examined.
After reviewing studies related to
learning strategy for dental psychomotor
the most suitable
tasks as well as
articles on instructor effectiveness a model is proposed. A
pilot project at the University of Toronto, based on this
proposed model is described.
The paper concludes wi th a discussion of the
implications of this proposed model.


title: A model of personality and health : coping styles as a moderator in the perfectionism-health connection

subject:
Personality.
Health behavior.
Perfectionism (Personality trait)

abstract:
The purpose of this study was to examine a model of personality and health.
Specifically, this thesis examined perfectionism as a predictor of health status and health
behaviours, as moderated by coping styles. A community sample of 813 young adults
completed the Multidimensional Perfectionism Scale, the Coping Strategy Indicator, and
measures of health symptoms, health care utilization, and various health behaviours.
Multiple regression analyses revealed a number of significant findings. First,
perfectionism and coping styles contributed significant main effects in predicting health
status and health behaviours, although coping styles were not shown to moderate the
perfectionism-health relationship. The data showed that perfectionism did constitute a
health risk, both in terms of health status and health behaviours. Finally, an unexpected
finding was that perfectionism also included adaptive features related to health.
Specifically, some dimensions of perfectionism were also associated with reports of
better health status and involvement in some positive health behaviours.


title: Amplification of the DFR1 gene in Saccaromyces cerevisiae

subject:
Gene amplification.
Saccharomyces.
Saccharomyces cerevisiae.

abstract:
A new system was employed to study amplification of
t,he DHF'R gene DFB,1 ) in Sa<,:;charoillYCB§. .Q~~Yi...S!i<;1~. . This
system consists of a series of yeast strains containing a
casset,te which encodes t he yeast, D..ERl gene ttghtly linked tjO
a f usion of the yeast 1EU2. regulat,ory region wi tJ1 the LAQZ
str ctural gene from E. cO.1-1 (,) . M. Clement , unpubl i,::;hed) .
Th's casset;t e was shown t.o be integrat,ed int o a unj que
chromosomal l ocati on in each strain . Yeast cells were
se l ected for MTX-resistance and overproduction of
~ galac t osi d se ( B-gal ). Since the inserted DF'Rl and ~ACZ
genes are independently regulated, it was thought that cel l s
with this phenotype probably contain e d ampl if ications of the
cassette.
A lar ge variat ion in the f requn y o f MTX-resistance
was found between the di ff e r ent str ains. These freqlen c ~ es
r anged from about 2 x 10 - 7 fo r a population of cells
containing the cassette integrated at, the BI J2.l gene in t,he
middle of the long arm of chromosome V, to about 5 x 10-4
for a strain with the cassette i nserted in the r DNA cluster
Abo It 85% of the MTX- res i stcmt iso l ates examined
showed enhanced B·-gal act i v ity rel a t ive t o the parental
strain . For the ma jorit y of strains, the mean B- gal activity
in drug-r sistant clones was about 3 times that o f the parent
following a single se l ect i on step . I n con t r ast, primary
MTX-resistant derivat~ves of cells with the cassette inserted
3
at the rDNA cluster showed inc r eases in B- gal activity ranging
from 9 - 14 f old r elative to the parent. Analysis of the latte r
s train by Southe rn hybr idization indicated that the cassette
was inde e d amplified several fold in MTX-re sistant
derivatives.
A sing l e strain, in which the cassette was inserted at
the !lEA;], loc u.s , was used to examine in more detai 1 , the
parameters affecting DFRl gene amplificat~ion in yeast . The
mean B- gal activity in drug-resistant derivatives of this
strain could be increased from 3 to 6 or 7 fold relative to
the parent, by stepwise sel ection using increasing MTX
concentrations. B-gal overproduction was found to be un stable
in all primary and highly -resistant isolates examined. There
was no indication, h owever, of a decrease i n growth r a t e in
MTX-res i s tant cells which overproduced B - gal.


title: Amputation and heat induced protein synthesis in the regenerating forelimb of Notophthalmus viridescens

subject:
Notophthalmus viridescens--Anatomy.
Proteins--Synthesis.
Arm.
Extremities (Anatomy)--Regeneration.
Regeneration (Biology)
Amputation.
Heat shock proteins.

abstract:
This thesis compares the responses of regenerating forelimb tissues of
the newt Notophthalmu..f vlridescens to the stresses of hyperthermia and
ID.echanical injury of amputation. In particular, both quantitative and
qualitative changes in the synthesis of soluble proteins in stump tissues,
including those of the heat shock protein family (HSP70-1ike) were
examined.
Results from SDS-PAGEfluorography indicate that the trauma of
amputation mimics the heat shock response both quantitatively and
temporally in its transient repression of the synthesis of most normal
cellular proteins, and qualitatively. in the locaJized expression of two unique
proteins (hsp30 and hsp70). Fluorography of proteins separated by twodimensional
gets revealed that thelCl4:alizedt amputation induced 70kDa
protein (amp70) was distinct from the more basic newt hsp/hsc70 isoforms.
Although limb amputation resulted in an increase in the synthesis of HSP70
mRNA analogous to that induced by heat 3.b.OCKf amp70 did not cross-react
with murine monoclonal antibodies directed against both the inducible and
cognate HSP70 proteins of the human. Thus, the possible relationship of
amp70 to other members of the HSP70-1ike protein family remains unclear.
Western analyses indicated that the levels of the constitutive form of
HSP70 (hsc70) were found to be regulated in a stage-dependent manner in
the distal stump tissues of the regen,erating forelimb of the newt. The
highest levels were found in the mid-late bud stage, a period during which
rapidly dividing blastema cells begin to redifferentiate in a proximodistal
direction. Immediately after amputation) hsc70 synthesis and accumulation
was depressed below steady-state levels measured in the unamputated limb~
The results are discussed in light of a possible role for HSPs and amputatio~
induced proteins in the epimorphic regeneration of the amphibian limb.


title: Analyses, persistence an degradation of the synthetic pyrethroid insecticides permethrin and fenvalerate

subject: Pyrethroids.

subject: Insecticides.

subject: Insect pests--Control--Ontario--Niagara Peninsula.

abstract:
Studies on persistence and degradation of the synthetic pyrethroid
insecticides, permethrin and fenvalerate, were carried out under natural
environmental conditions of the Niagara Peninsula. Permethrin and
fenvalerate were treated on apple foliage atrat~s of 0.21 kg(AI)!ha
and 0.14 kg(AI)/ha, respectively. The initial cis- and trans-permethrin
spray deposits were found to be 13.5 ppm and 19.2 ppm, respectively and
38.0 ppm was observed for the fenvalerate treated sample. Twenty-three
days and 84 days after spray application, permethrin residues were 4.0 ppm
and 2.7 ppm for the cis-isomer, whereas they were 7.9 ppm and 4.7 ppm for the
trans-isomer, respectively. Residues of fenvalerate 23 days and 84 days
after spray application were 13.4 ppm and 8.0 ppm, respectively. The values
of observed half-life of cis-permethrin, trans-permethrin and fenvalerate were
found to be 42 days, 46 days and 51 days, respectively. Studies were
extended to quantitatively determine some of the major degradation
compounds of permethrin and fenvalerate, which were expected to be produced
as results of ester cleavage of the parent compounds. A permethrin
treated sample, 84 days after initial spray application, showed 0.25 and
0.8 ppm of cis- and trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic
acid (C12CA (18), respectively. These two acids
were not found as free acids, but found as conjugated compounds. The other
expected degradation compounds, 3-phenoxybenzyl alcohol (PBalc (~)),3-phenoxybenz.aldehyde (PBald (38)) and 2- (4-chlorophenyl) isovaleric acid
(CPIA (31)) were not detected by the methods employed in this study. The
results indicate that these degradation compounds were not present,
or, if they were present, their concentrations were too low to detect
by the methods used.


title: Analysis of a temperature sensitive mutation affecting aldehyde oxidase activity in Drosophila melanogaster

subject:
Drosophila melanogaster.
Mutation (Biology)
Aldehydes.
Oxidases.
Temperature--Physiological effect.

abstract:
A strain of Drosophila melanogaster (mid america
stock culture no. hl16) has been reported to be deficient
in aldehyde oxidase activity (Hickey and Singh 1982).
This strain was characterized during the course of this
study and compared to other mutant strains known to be
deficient in aldehyde oxidase activity. During the course
of this investigation, the hl16 strain was found to be
temperature sensitive in its viability. It was found that
the two phenotypes, the enzyme deficiency, and the temperature
sensitive lethality were the result of two different
mutations, both mapping to the X-chromosome. These two
mutations were found to be separable by recombination. The
enzyme deficiency was found to map to the same locus as the
cinnamon mutation, another mutation which affects aldehyde
oxidase production. The developmental profile of aldehyde
oxidase in the hl16 strain was compared to the developmental
profile in the Canton S wild type strain. The aldehyde oxidase
activity in adult hl16 individuals was also compared
to that of various other strains. It was also found that
the aldehyde oxidase activity was temperature sensitive in
the adult flies.
The temperature sensitive lethality mutation was mapped
to position 1-0.1.


title: Analytical modelling of bacterial migration and accumulation with rate-limited sorption in discrete fractures

subject: Biological transport--Mathematical models.

subject: Bacteria--Adhesion--Mathematical models.

subject: Biofilms.

subject: Bacteria--Ecology.

subject: Groundwater--Microbiology.

abstract:
An analytical model for bacterial accumulation in a discrete fractllre has been developed.
The transport and accumlllation processes incorporate into the model include advection,
dispersion, rate-limited adsorption, rate-limited desorption, irreversible adsorption, attachment,
detachment, growth and first order decay botl1 in sorbed and aqueous phases. An analytical
solution in Laplace space is derived and nlln1erically inverted. The model is implemented in the
code BIOFRAC vvhich is written in Fortran 99.
The model is derived for two phases, Phase I, where adsorption-desorption are dominant,
and Phase II, where attachment-detachment are dominant. Phase I ends yvhen enollgh bacteria to
fully cover the substratllm have accllillulated. The model for Phase I vvas verified by comparing
to the Ogata-Banks solution and the model for Phase II was verified by comparing to a nonHomogenous
version of the Ogata-Banks solution. After verification, a sensitiv"ity analysis on the
inpllt parameters was performed. The sensitivity analysis was condllcted by varying one inpllt
parameter vvhile all others were fixed and observing the impact on the shape of the clirve
describing bacterial concentration verSllS time.
Increasing fracture apertllre allovvs more transport and thus more accllffilliation, "Vvhich
diminishes the dllration of Phase I. The larger the bacteria size, the faster the sllbstratum will be
covered. Increasing adsorption rate, was observed to increase the dllration of Phase I.
Contrary to the aSSllmption ofllniform biofilm thickness, the accllffilliation starts frOll1 the
inlet, and the bacterial concentration in aqlleous phase moving towards the olitiet declines,
sloyving the accumulation at the outlet. Increasing the desorption rate, redllces the dliration of
Phase I, speeding IIp the accllmlilation. It was also observed that Phase II is of longer duration
than Phase I. Increasing the attachment rate lengthens the accliffililation period. High rates of
detachment speeds up the transport. The grovvth and decay rates have no significant effect on
transport, althollgh increases the concentrations in both aqueous and sorbed phases are observed.
Irreversible adsorption can stop accllillulation completely if the vallIes are high.


title: An analysis of decoupling procedures in generating thermal Green's functions of O([lambda]â ´) by the Zubarev equation of motion method

subject:
Green's functions.
Lattice functions.
Equations of motion.
Phonons.

abstract:
The Zubarev equation of motion method has been applied to an anharmonic
crystal of O( ,,4). All possible decoupling schemes have been interpreted in
order to determine finite temperature expressions for the one phonon Green's
function (and self energy) to 0()\4) for a crystal in which every atom is on a
site of inversion symmetry. In order to provide a check of these results, the
Helmholtz free energy expressions derived from the self energy expressions,
have been shown to agree in the high temperature limit with the results
obtained from the diagrammatic method. Expressions for the correlation
functions that are related to the mean square displacement have been derived
to 0(1\4) in the high temperature limit.


title: An analysis of the photoelectron and Rydberg states of formaldehyde /|nby Carol R. Lessard. -- 260 St. Catharines [Ont.] : Dept. of Chemistry, Brock University,

subject:
Formaldehyde--Spectra.
Electron spectroscopy.

abstract:
Although it is generally accepted that Rydberg orbitals are very
large and diffuse, and that electron promotion to a Rydberg orbital is
not too different from ionization of the molecule, analysis of the two
types of transitions proves otherwise. The photoelectron spectrum of the
2B2 (n) ion has very little vibrational structure attached to the origin
band; on the other hand, several of the Rydberg transitions which involve
the promotion of the n(bZ) electron exhibit a great deal of vibrational
activity. In particular, the members of the n=3 Rydberg\ series interact
with and perturb each other through pseudo-Jahn-Teller vibronic coupling.
The vacuum ultraviolet spectrum contains a number of features which are
difficult to explain, and two unusually sharp bands can only be identified
as representing some form of electron promotion in formaldehyde.


title: An application of cell-cluster theory to a rare gas crystal /|n[by] K. Westera. - 260 St. Catharines [Ont.] : Dept. of Physics, Brock University,

subject:
Crystal growth.
Gases, Rare.

abstract:
The Lennard-Jones Devonshire 1 (LJD) single particle theory
for liquids is extended and applied to the anharmonic solid in
a high temperature limit. The exact free energy for the crystal
is expressed as a convergent series of terms involving larger and
larger sets of contiguous particles called cell-clusters. The
motions of all the particles within cell-clusters are correlated
to each other and lead to non-trivial integrals of orders 3, 6,
9, ... 3N. For the first time the six dimensional integral has
been calculated to high accuracy using a Lennard-Jones (6-12) pair
interaction between nearest neighbours only for the f.c.c. lattice.
The thermodynamic properties predicted by this model agree well with
experimental results for solid Xenon.


title: An aryne route to aporphine alkaloids and related topics / |nIjaz Ahmad Chanda. -- 260 St. Catharines, Ont. : [s. n.],

subject: Benzene. Alkaloids.

abstract:
This research was directed towards the investigation
and development of an aryne route to the syntheses of
aporphi ne and dibenzopyrrocolinium (dibenzoindolizinium)
alkaloids and to the stability of the latter under the
conditions used for aryne formation. The work c an be
divided into three main sections .
i) - Synthesis of Glaucine
6-Bromo-3,4-dimethoxyphenylacetic acid, prepared by
the action of bromine i n acetic acid on3,4-dimethoxyphenylacetic
a cid, was converted into its acid chloride by t he
action of thionyl chloride. This on treatment with 3,4-
dimethoxyphenylethylamine pr ovided N-(3, 4-dimethoxyphenylethyl)-
2-(2-bromo-4,S-dimethoxyphenyl)-acetamide which on
dehydration with phosphoryl chloride (Bischler Napieralski
reaction) in dry benzene afforded l -(2-bromo-4,S-dimethoxybenzyl)-
3,4-dihydro-6,7-dimethoxyisoquinoline, isolated as
hydrochl oride. A new method o f destroying the excess of
phosphoryl chloride was developed which proved to be quite
useful. Methylation of the dihydroisoquinoline'with methyl
iodide in methanol , and subsequent reduction with sodium
borohydride provided (±)-6-bromolaudanosine. Act ion of
potassamide or sodamide in anhydrous liquid ammonia on
(±)-6-bromolaudanosine yielded the corresponding amino
derivative along with other products. Diazotization and
ring closure of (±)-6-aminolaudanosine then a f forded (±)-glaucine which was isolated as methiodide.
ii) - Intramolecular Capture of Aryne During Glaucine
Synthesis, and Subsequent Reactions .
This section deals with the by-products formed under
the conditions of the aryne stage of t he glaucine synthesis.
The crude product, obtained in the reaction of potassamide
or sodamide in liquid ammonia on (±)-6-bromolaudanosine, was
s eparated by chromatography, Three products were separated
and identified.
a ) - 5,6-Dimethoxy-2-( 3,4-dimethoxy-6-ethylphenyl)-lmethylindole.
Two mechanisms are proposed for the formation
of this interesting product. This compound also was prepared
by the action of potassamide in l,iquid ammonia on 5,6 ,l2,l2atetrahydro-
2,3,9,lO-tetramethoxy-7-methyldibenz[b,g]indolizinium
i odide .
b) - 5,6-Dimethoxy-2-(3,4-dimethoxy-6-vinylphenyl)-lmethylindoline.
Its formation represented a new method
of Hofmann degradation . Further confirmation of structure
was done by performing the normal Hofmann reaction on
5, 6,12,12a-tetrahydro -2/3,9,lO-tetramethoxy ~7-methyldibe nz[
b,g]indolizinium iodide. The indoline prepared i n this way
was identical in all respects with that prepared above .
c) - 1- (2-amino-4,5-dimethoxybenzyl ) -l,2,3,4-tetrahydro-2-
methyl-6,7-dimethoxyisoquinoline, was converted t o glaucine
as stated in section 1 .
iii) - Attempt:,ed Sxnthesis of Liriodenine
Piperonal was converted into 3,4-methylenedioxyinitrostyrene which on reduction with lithium aluminium hydride
provided 3,4-methylenedioxyphenylethylamine. The method of
extraction after the reduction was improved t o some extent.
The amine on condensation with m-chlorophenylacetyl chloride,
prepared by the action of oxalyl chloride on 3,4-methylenedioxyphenylacetic
acid, provided N-[ ~ -(3,4-methylenedioxyphenyl)-
e thyl)-3-chlorophenylacetamide. This on dehydration
with phosphoryl chloride in dry benzene followed by air
oxidation afforded l-(3-chlorobenzoyl)-6,7-methylenedioxyi
soquinoline. This compound on r eaction with potassamide
in liquid ammonia afforded a crude product from which. one
product was separated by chromatography i n a pure condition .
This yellow compound analysed as,c17Hl ON2021 and was t he
main product i n the reaction ; a t entative structure is
proposed.
A second compound, not obtained in pure condition,
was submitted to Pschorr reaction in the hope of obtaining
liriodenine, but without success.


title: An assessment of the needs of people with muscular dystrophy and related neuromuscular disorders

subject:
Muscular dystrophy.
Neuromuscular diseases.
Medical care--Manitoba--Evaluation.
Medical care--Saskatchewan--Evaluation.


title: An educator's perspective of Dr. Feingold's K-P (Kaiser- Permanents) elimination diet for hyperkinetic children and others

subject:
Hyperactive children--Education.
Hyperkinesia--Nutritional aspects.
Hyperactive children--Diet therapy.

abstract:
Do evaluation of the literature and a regional
observational report support Dr. Feingold's claim that the
K-P (Kaiser-Permanente) elimination diet improves the
behaviours of hyperkinetic children, and others?
Dr. Feingold suggests that some hyperkinetic
children, and other children as well, are genetically
predisposed to intolerance of food additives, particularly
food colours and flavours. He claims that the K-P diet,
that eliminates salicylates and artificial food colours
and flavours, improves the hyperkinetic child's behaviour,
muscle co-ordination, and scholastic performance. Public
acceptance of the K-P diet has outstripped acceptance in the
medical and scientific communities. Evaluation of available
data and additional studies are needed to arrive at a
conclusion of acceptance or rejection of the K-P diet for
hyperkinetic children and others.
My interest in the K-P elimination diet for hyperkinetic
children is educational. My experience as an
elementary school teacher in special education and in the
classroom from K-8 has taught me that attentiveness is crucial to learning. Hyperkinesis appears to impair a
child's ability to attend. Learning problems appear,
followed by behavioural and social problems. l
If we accept the possibility of a relationship
between diet and attentiveness, and attentiveness and
school behaviours, then the diet-behaviour link could be
of lay importance. For instance, if a diet such as the
K-P diet could do what is claimed, substantial benefits
could accrue to the child. One could, for example, improve
a child's behaviours. One could identify attending disturbances
early in the child's education, possibly minimizing,
or eliminating future difficulties in school. Finally,
the greatest benefit may be the fulfillment of the basic
goal of our Ontario schools, that the eh~ld-,lIla1p.evelop
happily and competently within our educational framework. 2
This thesis reports evidence from the literature
and from a regional observational investigation to determine
the possibility of a link between the behaviours of
children and Dr. Feingold's K-P elimination diet. The
literature research examines (1) Dr. Feingold's concept of
H-LD, (2) his K-P elimination diet, and (3) the response
from three sectors, medicine, science, and the public.
The regional investigation examines the observed behaviours
of nine children in Regional Niagara during a nine-month period on the K-P diet.


title: An electrophysiological examination of intentional and inadvertent sleep onset : the effect of intention on the sleep onset process

subject: Sleep--Stages. Electrophysiology.

abstract:
The main purpose ofthis study was to examine the effect ofintention on the sleep
onset process from an electrophysiological point ofview. To test this, two nap
conditions, the Multiple Sleep Latency Test (MSLT) and the Repeated Test of Sustained
Wakefulness (RTSW) were used to compare intentional and inadvertent sleep onset.
Sixteen female participants (aged 19-25) spent two non-consecutive nights in the sleep
lab; however, due to physical and technical difficulties only 8 participants produced
compete sets of data for analysis. Each night participants were given six nap
opportunities. For three ofthese naps they were instructed to fall asleep (MSLT), for the
remaining three naps they were to attempt to remain awake (RTSW). These two types of
nap opportunities represented the conditions ofintentional (MSLT) and inadvertent
(RTSW) sleep onset.
Several other sleepiness, performance, arousal and questionnaire measures were
obtained to evaluate and/or control for demand characteristics, subjective effort and
mental activity during the nap tests. The nap opportunities were scored using a new 9
stage scoring system developed by Hori et al. (1994). Power spectral analyses (FFT) were
also performed on the sleep onset data provided by the two nap conditions.
Longer sleep onset latencies (approximately 1.25 minutes) were obseIVed in the
RTSW than the MSLT. A higher incidence of structured mental activity was reported in
the RTSW and may have been reflected in higher Beta power during the RTSW. The
decent into sleep was more ragged in the RTSW as evidenced by an increased number
shifts towards higher arousal as measured using the Hori 9 stage sleep scoring method.
1ll
The sleep onset process also appears to be altered by the intention to remain awake, at
least until the point ofinitial Stage 2 sleep (i.e. the first appearance of spindle activity).
When only examining the final 4.3 minutes ofthe sleep onset process (ending with spindle
activity), there were significant interactions between the type ofnap and the time until
sleep onset for Theta, Alpha and Beta power. That is to say, the pattern of spectral power
measurements in these bands differed across time as a function ofthe type ofnap. The
effect ofintention however, was quite small (,,2 < .04) when compared to the variance
which could be accounted for by the passage oftime (,,2 == .10 to .59).
These data indicate that intention alone cannot greatly extend voluntary
wakefulness if a person is sleepy. This has serious implications for people who may be
required to perform dangerous tasks while sleepy, particularly for people who are in a
situation that does not allow them the opportunity to engage in behavioural strategies in
order to maintain their arousal.


title: An empirical study of in-school and out-of-school day care

subject:
Day care centers.
Day care centers--Ontario--Toronto.
Nursery schools.
Nursery schools--Ontario--Toronto.

abstract:
The purpose of this study was to determine if there were
differences between in-school and out-of-school day care centres. Five
centres housed in public schools and five housed in other locations
were selected for the research. Aquality assessment was administered
in each centre which examined the following components - physical
environment, adult social structure and socia-emotional environment,
children's socia-emotional environment, cognitive stimulation program
and toys and equipment. Quantitative analysis using simple t-tests
showed a significant difference between in-school and out-of-school
day cares for the physical environment variable. Differences approached
significance for the children's socia-emotional environment variable as
well as overall quality. Qualitative analysis using a triangulated
methodology revealed noticeable differences for every variable. The
researcher concluded that both the quality of the physical environment
and the capabilities of the administrators strongly influence the
quality of the day care environment.
This study also included an assessment of children's attitude
toward learning. No significant difference was found between in-school
and out-of-school centres.


title: An examination of grade three mathematics textbooks for problem solving strategies

subject: Mathematics--Study and teaching (Primary)--Ontario.

subject: Problem solving.

subject: Third grade (Education)

abstract:
Three grade three mathematics textbooks were selected
arbitrarily (every other) from a total of six currently
used in the schools of Ontario. These textbooks were
examined through content analysis in order to determine
the extent (i. e., the frequency of occurrence) to which
problem solving strategies appear in the problems and
exercises of grade three mathematics textbooks, and how
well they carry through the Ministry's educational goals
set out in The Formative Years.
Based on Polya's heuristic model, a checklist was developed
by the researcher. The checklist had two main
categories, textbook problems and process problems and a
finer classification according to the difficulty level of
a textbook problem; also six commonly used problem solving
strategies for the analysis of a process problem. Topics
to be analyzed were selected from the subject guideline
The Formative Years, and the same topics were selected
from each textbook. Frequencies of analyzed problems
and exercises were compiled and tabulated textbook by
textbook and topic by topic. In making comparisons,
simple frequency count and percentage were used in the
absence of any known criteria available for judging highor low frequency. Each textbook was coded by three coders
trained to use the checklist.
The results of analysis showed that while there
were large numbers of exercises in each textbook, not
very many were framed as problems according to Polya' s
model and that process problems form a small fraction of
the number of analyzed problems and exercises. There
was no pattern observed as to the systematic placement
of problems in the textbooks.


title: An examination of learning resulting from a transition from a directed to a self-directed work environment

subject:
Self-culture.
Adult learning.
Home labor.
Work environment.

abstract:
~ This study focuses on the process of self-directed learning that individuals go
through as they adapt to new work situations. This is a study of how one critical incident,
specifically the transition from a traditional office structure to a home office structure,
affected employees and what their learning process was as they adapted to the new
environment. This study has 3 educational foundations: adult learning, self-directed
learning, and the social context from which the learning will occur.
Six women and 2 men were interviewed approximately 1 year following the
transition. Analysis of the data revealed 5 themes of: impacts of the self-directed
environment on participants' personal lives, their roles, skill set, productivity, and the
physical environment; support offered by the organization, family, and office
administration; personal development, specific learning needs, and personal skills;
boundaries as they relate to family and work; and skill set and orientation requirements of
new home office employees.
The findings revealed the learning processes of the 8 participants. The learning
processes of these participants were discussed within a theoretical framework of the
learners, their immediate surroundings, and the larger social environment. The results
indicated that the transition from a directed work environment to a self directed work
environment is a complex, interrelated process. An element found throughout the
theoretical framework is that of control. A second critical element is the need for
participants to have a clearly defined work role and an opportunity to engage in
discussion with peers and the community. Further findings reinforced the importance of
climate and found that the physical environment is a key factor in a successful selfdirected work environment. The findings of this study revealed that no one factor makes
an individual function successfully in a self-directed work environment, but that it is a
complex interplay among the leamer, their immediate surroundings, and the social
environment that will have the greatest impact on success.
Recommendations are made which can be used to guide organizational leaders in
facilitating employees' transition from a directed to a self-directed work environment.
Additionally, recommendations are made for further research in the area of self-directed
work environments.


title: An examination of the effects of locus of control on perceptions of core job dimensions and job satisfaction

subject:
Control (Psychology)
Job analysis.
Job satisfaction.
Perception.

abstract:
This study examined the moderating effects of locus of
control on core job dimensions (skill variety, task identity,
task significance, autonomy, feedback) and job satisfaction.
Survey data were collected from 1995 educators in Southern Ontario.
When core job dimensions were perceived to be high, job
satisfaction scores were high. The converse relationship was also
true; when core job dimensions were perceived to be low, job
satisfaction scores were also low.
As well, the investigation explored the effect of educators'
locus of control of reinforcement on the relationship between core
job dimensions and job satisfaction. Internals (N = 483-486)
perceived more skill variety, more task identity, more task
significance, more autonomy, more feedback and greater job
satisfaction than externals (N = 626-629).
However, contrary to expectation, the correlations between
specific core job dimensions namely autonomy and feedback, were not
systematically greater for internals compared to externals.
In addition the findings reported here suggest some appropriate
directions and strategies for measuring and increasing job satisfaction
among teachers.


title: An experimental investigation of dechanneling in copper single crystals

subject:
Copper crystals.
Channeling (Physics)

abstract:
This investigation comprises a comparison of experimental and
theoretical dechanneling of MeV protons in copper single crystals.
Dechanneling results when an ion's transverse energy increases to the
value where the ion can undergo small impact parameter collisions with
individual atoms. Depth dependent dechanneling rates were determined
as functions of lattice temperature, ion beam energy and crystal axis
orientation. Ion beam energies were IMeV and 2MeV,temperatures ranged
from 35 K to 280 K and the experiment was carried out along both the
(lOa) and <110) axes.
Experimental data took the form of aligned and random
Rutherford backscattered energy spectra. Dechanneling rates were
extracted from these spectra using a single scattering theory that
took explicit account of the different stopping powers experienced by
channeled and dechanneled ions and also included a correction factor
to take into account multiple scattering effects along the ion's
trajectory.
The assumption of statistical equilibrium and small angle
scattering of the channeled ions allows a description of dechanneling
in terms of the solution of a diffusion like equation which contains
a so called diffusion function. The diffusion function is shown to be
related to the increase in average transverse energy. Theoretical
treatments of increase in average transverse energy due to collisions
of projectiles with channel electrons and thermal perturbations in the
lattice potential are reviewed. Using the diffusion equation and the
electron density in the channel centre as a fitting parameter
dechanneling rates are extracted.
Excellent agreement between theory and experiment has been
demonstrated. Electron densities determined in the fitting procedure
appear to be realistic. The surface parameters show themselves to be
good indicators of the quality of the crystal.


title: An exploration of female administrators' perceptions of their role: do the differences make a difference?

subject:
Women school administrators--Ontario.
Women in education--Ontario.
Women--Ontario--Social conditions.

abstract:
Recent Ontario legislation by the Ministry of Education
has targeted a goal of 50 percent as the minimum objective for
representation by women in positions of responsibility by the
year 2000. As a result,those few women currently in the field
of Educational Administration have become a focus for
researchers. The intent of this research is to contribute to
the current knowledge and understanding of women principals in
the leadership role.
In-depth interviews with four experienced female
principals were conducted centering on their perceptions and
experiences on a wide range of issues that included: gender
characteristics and impact on role, perceived differences as
a result of gender characteristics, decision making, curriculum
leadership, communication, the perception of others, and the
advantages and disadvantages of being a woman in the role.
Narrative profiles were constructed for each participant and
analyzed. A description for each woman emerged by an analysis
of common patterns and themes in the participants' narratives.
Results revealed that the participants were able to
identify and to describe particular gender traits that they
perceived had impact on their role. Moreover the participants
regarded their gender characteristics as facilitating and
enhancing the performance of their role. Common patterns for
all the participants emerged from the data that conveyed a
strong feminine imagery of mother and espoused the idea of
school as home, and staff and students as family. Leadership
ii
styles demonstrated an emphasis on collaborative decision
making, open communication, and apparent difficulty and
ambiguity arising from the role of Curriculum leader.
The results of this study also indicate that personal
metaphors ascribed and embedded in the narratives are
significant in conceptualizing and interpreting the
administrative role.


title: An exploration of intergenerational exchanges between grandparents and their older grandcildren

subject: Grandparent and child--Family relationships.

subject: Intergenerational relations.

subject: Grandparents--Family relationships.

subject: Grandchildren--Family relationships.

abstract:
Changes within the family unit have resulted in changes in interactions
between grandparents and older grandchildren. Existing research indicates that
these relationships can result in positive outcomes. A relevant task for
researchers is to continue to explore th~se intergenerational relationships.
This qualitative phenomenological study explores the question: What
functional patterns exist when grandparents interact with older grandchildren?
Six grandparent-older grandchild pairs agreed to be involved.
Kennedy's (1992) formulation of grandparent-older grandchild activity
clusters was reviewed and revised. Activities were clustered related to
socialization, companionship, support, entertainment, and education.
Findings unique to this study indicate that shared activities were mutually
chosen with consideration of activity tolerance, and were consistently evaluated
as enjoyable. Partners were chosen because of a comfortable relationship
established through frequent past and present interactions, and not because of
family lineage preferences. Both grandparents and older grandchildren stated a
desire to have a generation peer share activities with them.
Exploration of dimension concepts for the "McMaster Model of Family
Functioning" indicated that these relationships have potential to contribute to
healthy family functioning.
The implications for practice, theory development and further research
are suggested.


title: An exploration of transformation theory and the western tradition: a critical evaluation of a graduate studies class

subject: Universities and colleges--Graduate work--Evaluation.

subject: Education--Study and teaching (Graduate)--Evaluation.

subject: Adult education--Philosophy.

abstract:
This qualitative study is an exploration of transformation theory, the
Western tradition, and a critical evaluation of a graduate studies class at
a university. It is an exploration of assumptions that are embedded in
experience, that influence the experience and provide meaning about
the experience.
An attempt has been made to identify assumptions that are
embedded in Western experience and connect them with assumptions
that shape the graduate class experience. The focus is on assumptions
that facilitate and impede large group discussions. Jungian psychology of
personality type and archetype and developmental psychology is used to
analyze the group experience.
The pragmatic problem solving model, developed by Knoop, is
used to guide thinking about the Western tradition. It is used to guide the
analysis, synthesis and writing of the experience of the graduate studies
class members.
A search through Western history, philosophy. and science revealed
assumptions about the nature of truth, reality, and the self. Assumptions
embedded in Western thinking about the subject-object relationship, unity
and diversity are made explicit. An attempt is made to identify Western
tradition assumptions underlying transformation theory.
The critical evaluation of the graduate studies class experience
focuses upon issues associated with group process, self-directed learning,
the educator-learner transaction and the definition of adult education.
The advantages of making implicit assumptions explicit is explored.


title: Anharmonic Helmholtz free energy to O(lambdaâ ´) in the non- leading term approximation /|nby Leslie Wilk. -- 260 St. Catharines, Ont. : [s. n.],

subject:
Crystal lattices.
Perturbation (Quantum dynamics)

abstract:
Expressions for the anharmonic Helmholtz free
energy contributions up to o( f ) ,valid for all temperatures,
have been obtained using perturbation theory
for a c r ystal in which every atom is on a site of
inversion symmetry. Numerical calculations have been
carried out in the high temperature limit and in the
non-leading term approximation for a monatomic facecentred
cubic crystal with nearest neighbour c entralforce
interactions. The numbers obtained were seen to
vary by a s much as 47% from thos e obtai.ned in the
leading term approximati.on,indicating that the latter
approximati on is not in general very good. The convergence
to oct) of the perturbation series in the high
temperature limit appears satisfactory.


title: An HPLC method for simultaneous determination of residual benomyl and MBC on apple foliage without cleanup

subject:
Liquid chromatography.
Benomyl.
Foliar diagnosis.
Apples--Diseases and pests.

abstract:
A simple High Performance Liquid Chromatograph (HPLC)
method has been developed to identify benamyl (methyl 1-
(butylcarbamoyl)-2-benzimidazole carbamate) and MBC (methyl
2-benzimidazole carbamat~ residues on apple leaves without
cleanup. Sample leaves are freeze dried in a Mason jar and
residues are then extracted by tumbling them in chloroform
containing 5,000 microgram per milliliter of n-propyl isocyanate
(PIC) at 10 C. To the extract, n-butyl isocyanate
(BIC) was added at 5,000 microgram per milliliter and 20
microliter of this mixture injected onto the HPLC system.
Separation is accomplished by the use of a Brownlee LiChrosorb
silica gel column with a guard column and' operated
with a mixed mobile phase consisting of chloroform and
hexane (4:1) saturated with water. MBC, a degradation product
of benomyl is identified if present as methyl l-(npropyl
carbamoyl)-2-benzimidazole carbamate (MBC-n-PIC).
Both benomyl and MBC-n-PIC can be detected with aKUltraviolet
(UV) detector (280nm) at a concentration as low as
0.2 microgram per milliliter in apple leaves. The fate of
benomyl on apple foliage after spray application of benomyl
(Ben late 50 per cent wettable powder) was investigated by
the method thus described. Benomyl quickly dissipated during
the first 3-7 days, but the dissipatio'n sltowed down
thereafter. In contrast, the concentration of MBC in leaves
gradually increased after repeated applications of Benlate.