Analytical modelling of bacterial migration and accumulation with rate-limited sorption in discrete
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
Analyses, persistence an degradation of the synthetic pyrethroid insecticides permethrin and fenvale
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
Amputation and heat induced protein synthesis in the regenerating forelimb of Notophthalmus viridesc
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
temp
Amplification of the DFR1 gene in Saccaromyces cerevisiae
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
A mass spectrometric study of some pesticides /|nK. S. Subramanian. -- 260 St. Catharines, Ont. : [s
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
A high resolution study of the 4¹â bands of ¹³CHâ O and CHâ ¹⠸O
Description not set
Agrarian revolution in Central America : a comparison of Nicaragua and Honduras using Jeffery Paige'
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
Aging policy: a case study of co-ordination in Canadian governments
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
A fast atom bombardment mass spectrometry study of tris (3, 6-dioxaheptyl) amine-alkali metal halide
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 tdoh
Administrative and political control over federal government contracting in Canada
Description not set
A comparison of two computer-assisted remedial reading programs for adolescent unskilled readers : c
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
A case study of a high functioning autistic female in a games setting
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,
1,1-enediamines and β-substituted enamines in heterocyclic synthesis
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
Genetic variation and evolutionary divergence within and among populations, species, and genera of t
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 withi
Autonomic and electrocortical indices of performance monitoring and source memory discrimination in
Reduced capacity for executive cognitive function and for the autonomic control
of cardiac responsivity are both concomitants of the aging process. These may be linked
through their mutual dependence on medial prefrontal function, but the specifics ofthat
linkage have not been well explored. Executive functions associated with medial
prefrontal cortex involve various aspects ofperformance monitoring, whereas centrally
mediated autonomic functions can be observed as heart rate variability (HRV),
Development of a bacteriophage-based biopesticide for fire blight
Fire blight is an economically important disease of apples and pears that is caused by the
bacterium Erwinia amylovora. Control of the disease depends on limiting primaly blosson1
infection in the spring, and rapidly removing infected tissue. The possibility of using phages to
control E.amylovora populations has been suggested, but previous studies have. failed to show
high treatment efficacies. This work describes the development of a phage-based biopesticide
that controls E. amylovora populati
The osmoadaptive response of the wine yeast Saccharomyces cerevisiae K1-V1116 during icewine ferment
The adapted metabolic response of commercial wine yeast under prolonged
exposure to concentrated solutes present in Icewine juice is not fully understood.
Presently, there is no information regarding the transcriptomic changes in gene
expression associated with the adaptive stress response ofwine yeast during Icewine
fermentation compared to table wine fermentation. To understand how and why wine
yeast respond differently at the genomic level and ultimately at the metabolic level during
Icewine
The coach-athlete relationship in university female team sports : perceptions of moral agency and et
Description not set
Using stimulus equivalence to teach monetary skills to school-age children with autism
The present study evaluated the use of stimulus equivalence in teaching monetary skills
to school aged children with autism. An AB within-subject design with periodic probes was
used. At pretest, three participants demonstrated relation DA, an auditory-visual relation
(matching dictated coin values to printed coin prices). Using a three-choice match-to-sample
procedure, with a multi-component intervention package, these participants were taught two
trained relations, BA (matching coins to printe
Examining the mediating effects of team-referent causal attributions on the team performance and col
Description not set
