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Understanding the use of co-design methods for research involving older adults living with HIV: A scoping review protocol
No full textThere is a growing population of adults aged 50 years or older living with HIV, facing unique challenges in care due to age, minority status, and stigma. Co-design methodologies, aligning with patient-centered care, have potential for informing interventions addressing the complex needs of older adults with HIV. Despite challenges, co-design has shown promise in empowering older individuals to actively participate in shaping their care experiences. The scoping review outlined here aims to identify gaps in existing co-design work with this population, emphasizing the importance of inclusivity based on PROGRESS-Plus characteristics for future patient-oriented research. This scoping review protocol is informed by the Joanna Briggs Institute Manual to explore co-design methods in geriatric HIV care literature. The methodology encompasses six stages: 1) developing research questions, 2) creating a search strategy, 3) screening and selecting evidence, 4) data extraction, 5) data analysis using content analysis, and 6) consultation with key stakeholders, including community partners and individuals with lived experience. The review will involve a comprehensive literature search, including peer-reviewed databases and gray literature, to identify relevant studies conducted in the past 20 years. The inclusive criteria focus on empirical data related to co-design methods in HIV care for individuals aged 50 or older, aiming to inform future research and co-design studies in geriatric HIV care. The study will be limited by the exclusion of papers not published or translated to English. Additionally, the varied terminology used to describe co-design across different research may result in the exclusion of articles using alternative terms. The consultation with key stakeholders will be crucial for translating insights into meaningful co-design solutions for virtual HIV care, aiming to provide a comprehensive synthesis that informs evidence-based strategies and addresses disparities in geriatric HIV care.This research was supported by the AGE-WELL Network of Centres of Excellent (NCE) (AW-CAT-2023-03) Inc and the Canadian Frailty Network’s (CFN) Catalyst Funding Program in Healthy Aging. The AGE-WELL NCE and CFN are funded by the Government of Canada through the Networks of Centres of Excellence program
Investigative studies on the stability of an amine blend in the presence of exhaust gas dust (metal oxide) impurities during an amine-based CO2 capture process
No full textA Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Master of Applied Science in Process Systems Engineering, University of Regina. xv, 160 p.This research work investigates the degradation kinetics of MEA/DMAE bi-blend solvent,
with a focus on the influence of temperature, oxygen concentration, and type and amount of
exhaust gas metal oxides. Utilizing a combination of experimental approaches and kinetic
modeling, this study was used to provide a comprehensive analysis of the factors that affect
MEA/DMAE stability and degradation rates.
This research commenced first, by determining the solubility of various dominant iron and
steel flue gas metal oxides, namely, Fe2O3, ZnO, MnO, and Al2O3. The oxides were dissolved in
a 200 ml, 5M, and 0.30 mol CO2/mol bi-blend of MEA/DMAE solvent. In decreasing order, the
solubility results for ZnO, Fe2O3, MnO, and Al2O3 were 387.51 ppm, 15.96 ppm, 4.57 ppm, and
3.43 ppm, respectively. By flowing oxygen at different concentrations (balance nitrogen) through
a 200 ml volume filtrate of the generated metal oxide dissolved amine solvent in a three-necked
flask exposed to different absorber temperatures, a continuous 21-day lab-scale degradation
experiment was carried out.
Fe2O3 had the greatest influence on the degradation of a CO2-loaded bi-blend of
MEA/DMAE among the metal oxides taken into consideration, followed by ZnO all based on
amine degradation results in mmol/hr, accumulated amount of ammonia emissions in ppmV, and
ammonia emissions rate in ppmV/hr. Based solely on which one had the most degrading effect,
Fe2O3 in the concentrations of 15.96 ppm, 11.97 ppm, and 7.98 ppm was selected and used against
varying temperatures (in the range of 40 oC, 50 oC, and 60 oC) and oxygen concentrations (ranging
from 6%, 12%, and 18%) to explore their effects on degradation rates and ammonia emission rates.
A kinetic model was developed for the DMAE degradation rate and MEA degradation rate with
activation energies of 50,495.13 J/mol, and 60,310.9 J/mol respectively. The order of reactions
obtained from the kinetic analysis was 1.22 and 0.98 for DMAE and MEA respectively. The results
showed that DMAE degraded at a faster rate than MEA. The studies also showed an increasing
trend in the rate of MEA/DMAE degradation and the rate of ammonia emissions with increasing
oxygen concentration and operating temperature.
A high activation energy for MEA implies that more energy (temperature) was needed to
degrade MEA relative to DMAE, which had a lower activation energy. A lower order of reaction
for oxygen for MEA, also implies that the impact of oxygen on MEA degradation is less than its
impact on DMAE degradation. Fe2O3 therefore has a higher catalytic effect on MEA/DMAE
degradation implying that upon contact with the amine solvent, the amine has a high tendency to
degrade at a faster rate, causing an increase in solvent losses and an increase in the cost of solvent
replacement. Further implications include corrosion, clogging, and the degraded amine's fouling
of columns and piping.Studentye
Performance evaluation of a multifractured horizonal well in an unconventional reservoir with fracture networks and flow dynamics
No full textA Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Petroleum Systems Engineering, University of Regina. xxvi, 265 p.With the advancement of horizontal drilling and hydraulic fracturing technologies, the
unconventional reservoir resources (e.g., tight oil and shale gas) have received a growing
attention; however, it is a challenging task to accurately simulate the transient pressure
response and single/two-phase flow behaviour due to the reservoir boundary, fracture
geometry, fracture network, and flow dynamics including stress-sensitivity, slippage effect,
non-Darcy flow, and gas adsorption/desorption. Therefore, it is of a fundamental and
practical importance to evaluate the performance of a multifractured horizontal well
(MFHW) in an unconventional reservoir conditioned to an arbitrary boundary, fracture
geometry, and complex fracture networks with the consideration of pressure-dependent
permeability, non-Darcy flow, slippage, and/or gas adsorption/ desorption.
By taking the arbitrarily-shaped reservoir boundaries into account, the boundary
element method has been proposed to accurately describe the boundary-dominated flow
during the late time period for an MFHW in an unconventional oil reservoir. The stresssensitive
effect of the hydraulic fracture subsystem is semi-analytically evaluated in the
Laplace domain with the iteration method, while the Pedrosa's transform formulation can
be incorporated into the governing equations in the matrix and fracture subsystems in order
to couple the matrix-fracture flow models. As for a shale gas reservoir, the dual reciprocity
boundary element method is applied to deal with the nonlinearity resulted from more
complex conditions (i.e., slippage, stress-sensitivity, and gas adsorption/desorption). In
addition to its flexibility, the newly proposed model can be used to simultaneously obtain
solutions at multiple locations inside the matrix domain. As for the two-phase flow, a skin
factor on a fracture face is defined and introduced to represent the change in relative
permeability in the matrix domain at each timestep.
A two-phase flow model coupled with geomechanics has been employed to capture
transient flow behaviour during the flowback period in an unconventional reservoir by
considering fracture geometry and capillary pressure. Different from the traditional
treatment by assuming it as a constant, a function of interfacial tension (IFT) between gas
and water as well as fracture aperture is employed to obtain the capillary pressure within a
fracture, during which the gas/water saturation and the fracture aperture in each fracture
segment with an equal length can be iteratively obtained and updated.
All the proposed theoretical models have been validated and then extended to field
cases. As for the single-phase flow, type curves are generated and beneficial to examine
the effect of each factor on the transient pressure behaviour of an MFHW in an
unconventional reservoir conditioned to different fracture networks and flow dynamics. In
the two-phase flow model coupled with geomechanics, dynamic fracture properties, and
capillary pressure are found to exert a considerable influence on the gas/water production
rates and cumulative production. The discrepancy between the field pressure/production
data and transient type curves without geometrical structure (i.e., reservoir boundaries and
proppant characteristics) and flow dynamics can be adopted to evaluate the contribution of
stress-sensitive effect and gas adsorption/desorption.Studentye
Geochemical analyses of amber associated with dinosaur bonebeds in central North America
No full textA Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Master of Science in Geology, University of Regina. xii, 102 p.For a long time, amber has been praised for its ability to preserve organic inclusions in spectacular detail. More recently amber has been analysed from a geochemical point of view, to gain a better understanding of the environments in which this fossilized tree resin was produced. Due to lack of fossils and detail in known paleo-environments three meters below the Cretaceous-Paleogene (K-Pg) boundary, amber geochemistry helps to fill in a gap of the fossil record. This study consists of the analysis of carbon and hydrogen stable isotopes from amber in bone beds, as well as Fourier Transform Infrared Spectroscopy (FTIR) and more traditional means of paleontological and sedimentological analysis from sites in Saskatchewan, Alberta, Montana, and North Dakota. The main aim is understanding how this geographic region of the world was changing during the Cretaceous period. Results indicate that Cretaceous ecosystems, during the last 15 million years of the Cretaceous, were relatively quite stable; however, the δ13C values leading up to the Cretaceous-Paleogene extinction boundary appear to show that many of the geographic region’s resin producing plants were experiencing some form of ecophysiological stress. They also indicate that the Western Interior Seaway underwent transgressions and regressions throughout the Cretaceous and that it was still actively playing a part in the terrestrial ecosystem’s precipitation up until the end of the Cretaceous period, although with varying degrees of influence. Finally, the data indicate that throughout the Cretaceous the main amber producing plants were trees from the Cupressaceae family. Using the geochemical information from amber along with the sedimentological and paleontological data from each of these sites, details of the environments leading up to the end Cretaceous extinction event can be constructed.Studentye
Mental Health Care Needs of Racial and Ethnic Minorities with Chronic Pain: A Scoping Review
No full textBeam asymmetry in the reaction channel γp→ηΔ + at Glue X
No full textA Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Physics, University of Regina. xxiv, 162 p.Photoproduction mechanisms studied in the GlueX experiment allows the mapping
of light mesons in unprecedented detail with particular interest in exotic meson candidates.
This is achieved by impinging an 8.2-8.8 GeV linearly polarized photon beam
on a liquid hydrogen target. The measurement of beam asymmetry Σ will help constrain
quasi-particle t-channel exchange processes using Regge theory. Understanding
the photoproduction exchange mechanisms is a crucial ingredient in establishing hybrid
and exotic photoproduced light meson states. Σ is extracted from the azimuthal
angular distribution between the meson production plane and the polarized photon
beam. In particular, we will report results on the beam asymmetry measurements for
η in the reaction
p →η Δ+. This reaction with a recoiling Δ+ will allow for comparison
and validation of theoretical calculations and provide additional validation of
the η asymmetry with a recoiling proton. The different isospin of the Δ+ imposes
additional restrictions that further constrain allowed Regge exchanges. The results
were similar to η-proton i.e Σ ≈ 1 but showed a deviation from theoretical models of
the η - Δ+ especially towards higher t values. This may help guide modifications to
these models for production and exchange processes involving η meson.Studentye
The prudent visionary: Mackenzie King's calculated leadership for a complex nation
No full textA Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Master of Arts in History, University of Regina. iii, 60 p.William Lyon Mackenzie King's enduring political legacy as Canada's longest-serving Prime Minister can be attributed to his ability to balance visionary leadership with political pragmatism. Through a nuanced understanding of Canada's complexity and its historical cleavages, King crafted his vision to align with the nation's readiness for change, while strategically avoiding actions that might threaten national unity. This study delves into King's intricate decision-making process, analyzing key moments throughout his political career, and culminating in the cancelled 1948 trade deal with the United States. By examining King's speeches, diaries, and policies, this research highlights how he carefully and meticulously pursued his vision for Canada. Such an appraisal of King’s leadership challenges the depiction of King by academics as indecisive and acting only to maintain political power. Moreover, this thesis argues that King's deliberate actions and inaction during critical junctures, such as during the conscription crisis during the Second World War and various policies to address both national and international circumstances while he was Prime Minister, demonstrates his leadership skills. In short, this thesis sheds light on the nuanced interplay between King's political maneuvering and his steadfast commitment to a vision for Canada that privileged national unity primarily while moving Canada in a direction that he believed best for the nation and for Canadians.Studentye
Archer Library Award 2024 Photographs
No full textImage 1: Brett Waytuck, Dean, University Libraries and Archives presents the Dr. John Archer Library Award Trophy for 2024 to 4th year Visual Arts student Lindsay Demchuk
Image 2: Group photo with the Dr. John Library Award Trophy left to right - Robert Truszkowski, Head, Department of Visual Arts; Dr. Karla McManus, Department of Visual Arts; Lindsay Demchuk (2024 Dr. John Archer Library Award recipient); Brett Waytuck, Dean, University Libraries and Archives; Dr. David Dick, Dean, Faculty of Media, Art, and Performance
Image 3: Lindsay Demchuk with the Dr. John Archer Library Award Trophy
Image 4: Brett Waytuck presents the Dr. John Archer Library Award Certificate to Lindsay Demchuk
Image 5: Group photo with Dr. John Archer Library Award certificate left to right - Robert Truszkowski, Head, Department of Visual Arts; Dr. Karla McManus, Department of Visual Arts; Lindsay Demchuk (2024 Dr. John Archer Library Award recipient); Brett Waytuck, Dean University Libraries and Archives; Dr. David Dick, Dean, Faculty of Media, Art, and Performance
Image 6: Lindsay Demchuk with the Dr. John Archer Library Award Certificate
Image 7: Dr. Karla McManus and Lindsay Demchuk with the Dr. John Archer Library Award Certificat
“Shared responsibility” an intersectional approach to sexual violence prevention: counselling and training experiences at the sexual violence and response office
No full textA Practicum Report Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Master of Social Work, University of Regina. vi, 56 p.Sexual violence affects a significant amount of people in Saskatchewan, in particular women experiencing the highest rates of sexual violence. In Canada, there are a significant number of students in post-secondary institutions who have experienced or witnessed unwanted sexual behaviour. This report outlines my experiences while completing the MSW field practicum at the Sexual Violence and Prevention office located at the University of Regina. The ultimate goals of my practicum were to gain clinical counselling knowledge using a trauma-informed framework and to gain skills to provide educational opportunities for students to learn about gender-based violence. This report will highlight my use of Acceptance and Commitment Therapy, Narrative Therapy, and the use of Judith Herman’s (2022) stages of trauma recovery. These tools were utilized in counselling practice when supporting someone who has experienced gender-based violence. Additionally, I will discuss education and awareness-raising important events that occurred related to gender-based violence with the campus community. Beyond my day-to-day practicum, I will highlight how I have been reflective and aware of my positionality and to ensure I am an anti-oppressive and trauma-informed social worker.Studentye
