Using Social Media To Engage Toronto Communities For Resiliency And Stress Planning, Martha Ta

Theses and Dissertations (Comprehensive)

As Toronto’s low-income areas grow, the city’s neighbourhoods experience a segregation by low- and high-income, contributing to chronic stress as environmental determinants and leading to negative health outcomes and chronic diseases. This study identified Crescent Town as one of the Toronto neighbourhoods with potentially high levels of chronic emotional stress through an analysis of emotions indicated by Tweets, as well as triangulation with administrative data describing relevant neighbourhood indicators. Crescent Town community members (n=23) were engaged using concept mapping to identify existing neighbourhood stressors and assets and empowered to strategize solutions. The ten-cluster solution created with six clusters describing neighbourhood …

Blurred Lines: A Phenomenological Study Of Maternal-Child Interconnection., Laura Macgregor

Theses and Dissertations (Comprehensive)

This phenomenological study explored the lived experiences of maternal-child interconnection among 12 mothers raising children, of any age, with developmental disabilities as well communication challenges. During semistructured interviews, mothers told stories of maternal-child interconnection that described a sacred, mutual, and unique interpenetration of experiences between mother and child that was nurtured and sustained by ongoing togetherness. Mothers also shared that their unique mother-child interconnection was difficult to articulate, and often poorly understood beyond the mother-child dyad.

Maternal-child interconnection allowed mothers to understand their children’s unique, often non-verbal communication. As a result, mothers of children with significant communication challenges were able …

Associations Between Sexual Risk Behaviours, And Certain Beliefs And Perceptions About Antiretroviral Therapy In Botswana, Wayne Gill

Theses and Dissertations (Comprehensive)

This study explored the association between sexually risky behaviour among individuals and their beliefs and perceptions regarding antiretroviral therapy or ART. Specifically, the paper examined the treatment optimism aspect of ART- that HIV is a less serious threat due to the availability of ART. In order to test this notion, the paper compared the behavior of those people who were HIV positive with those who were HIV negative. A second population subset also included in the comparative analyses were those aware of their HIV status and those unaware. To underline the prevalence of treatment optimism, the study also considered the …

The Influences Of Culture And The Self On Children’S Memory Encoding And Delayed Retrieval, Hongyuan Qi

Theses and Dissertations (Comprehensive)

Culture and the self form a dynamic system that shapes children’s memories. However, how these two constructs influence specific memory processes still requires further investigation. The present dissertation contains four studies that examined the influences of cultural backgrounds and self-views on children’s memory encoding and delayed retrieval. Participants across four studies were recruited in the year range of 2016 to 2018. A total of 243 Grade 1 and 2 (the younger group) and Grade 3 and 4 (the older group) children participated, with an age range of seven to ten years. Specifically, 121 Chinese children were from Mainland China and …

Competition Or Facilitation: Examination Of Interactions Between Endangered Sida Hermaphrodita And Invasive Phragmites Australis, Samantha N. Mulholland

Theses and Dissertations (Comprehensive)

Virginia Mallow (Sida hermaphrodita) is a perennial herb of the Malvaceae family that is native to riparian habitats in northeastern North America. Throughout most of its geographical distribution however, it is considered threatened and only two populations are known from Canada. The biology and ecology of S. hermaphrodita are still poorly understood and although few studies have been performed to determine the factors that contribute to the species rarity, it is considered threatened potentially due to the loss of habitat caused by exotic European Common reed (Phragmites australis subsp. australis) invasion. Allelopathic and phytotoxic conditioning of …

Incidence Of Responders Vs Non-Responders With Sprint Interval Training, Kyle Schulhauser

Theses and Dissertations (Comprehensive)

The current study examined the incidence of non-response to a traditional 30:240 s sprint interval training (SIT) protocol, as well as for 2 modified SIT protocols of 15:120 s, and 5:40 s over 4 wk of training in 84 recreationally active males and females (52m, 32f). Pre- and post- testing measures included: aerobic capacity (V̇O_2max), aerobic performance (5-km time trial), and anaerobic capacity (30 s sprint). Non-response was determined using 2x typical error for each variable. Chi square analysis indicated a significant difference (P = 0.032) in the frequency of non-responders for aerobic performance where the 30:240 group …

Expression, Purification, Functional Characterization And Crystallization Of Three Porphyromonas Gingivalis Gene Products, Katarina Mandic

Theses and Dissertations (Comprehensive)

Dental biofilms are coupled polymicrobial aggregates that have attached to solid surfaces in the oral cavity. These collections of microorganisms are known to cause periodontal diseases that commence as localized inflammation of the gingiva and if untreated, eventually lead to irreversible alveolar bone resorption and tooth loss. Porphyromonas gingivalis is one of three periodontal pathogens that make up the “Red Complex”; a bacterial consortium responsible for the production of polysaccharide-rich biofilms that are essential to the inception and progression of periodontal disease. The dysbiosis and destructive inflammation caused by these organisms propel a self-sustained feed-forward loop that perpetuates periodontal disease. …

Older Adults’ Social Networks And The Role Of A Telephone Helpline Program, Harmanpreet (Preet) Chauhan

Theses and Dissertations (Comprehensive)

Over the past century, advances in health care, higher levels of education, and improved living conditions have resulted in increased human life expectancy. However, with longer life expectancy comes potential challenges to quality of life, as individuals may face numerous transitions in older age: children leaving home, employment to retirement, or physical declines possibly leading to lack of mobility. As a result, older adults may experience social isolation and difficulty in building new relationships. This is problematic, as lack of social connection is a strong predictor of lower physical and mental health (Fiori & Jager, 2012; Fiori, Smith, & Antonucci, …

State Of Metropolitan Housing Report: 22,000 Equities, Addressing Racial Gaps In Homeownership And Wealth. ..., Lauren Heberle, Kelly Kinahan, Danielle Rohret, Jamar Wheeler, Rebecca Halpryn

Faculty and Staff Scholarship

No abstract provided.

Personal Universes: A Solution To The Multi-Agent Value Alignment Problem, Roman V. Yampolskiy

Faculty and Staff Scholarship

AI Safety researchers attempting to align values of highly capable intelligent systems with those of humanity face a number of challenges including personal value extraction, multi-agent value merger and finally in-silico encoding. State-of-the-art research in value alignment shows difficulties in every stage in this process, but merger of incompatible preferences is a particularly difficult challenge to overcome. In this paper we assume that the value extraction problem will be solved and propose a possible way to implement an AI solution which optimally aligns with individual preferences of each user. We conclude by analyzing benefits and limitations of the proposed approach.

An Explainable Autoencoder For Collaborative Filtering Recommendation, Pegah Sagheb Haghighi, Olurotimi Seton, Olfa Nasraoui

Faculty and Staff Scholarship

Autoencoders are a common building block of Deep Learning architectures, where they are mainly used for representation learning. They have also been successfully used in Collaborative Filtering (CF) recommender systems to predict missing ratings. Unfortunately, like all black box machine learning models, they are unable to explain their outputs. Hence, while predictions from an Autoencoderbased recommender system might be accurate, it might not be clear to the user why a recommendation was generated. In this work, we design an explainable recommendation system using an Autoencoder model whose predictions can be explained using the neighborhood based explanation style. Our preliminary work …

Development And Implementation Of An Lgbt Initiative At A Health Sciences Library: The First Eighteen Months, Jessica Petrey

Faculty and Staff Scholarship

Background: The University of Louisville School of Medicine is the pilot site for the eQuality project, an initiative to integrate training for providing care to lesbian, gay, bisexual, and transgender (LGBT) patients into the standard medical school curriculum. Inspired by and in support of this School of Medicine initiative, Kornhauser Health Sciences Library staff have developing our own initiative. Because of past and current lack of competent provider training and the resulting need for patients to be knowledgeable self-advocates, however, our initiative was broadened to include the goal of providing LGBT individuals in our communities—both on campus and in the …

Black Hawk In Translation: Indigenous Critique And Liberal Guilt In The 1847 Dutch Edition Of Life Of Ma-Ka-Tai-Me-She-Kia-Kiak, Frank Kelderman

Faculty and Staff Scholarship

No abstract provided.

Reproducible K-Means Clustering In Galaxy Feature Data From The Gama Survey, Sebastian Turner, Lee S. Kelvin, Ivan K. Baldry, Paulo J. Lisboa, Steven N. Longmore, Chris A. Collins, Benne W. Holwerda, Andrew M. Hopkins, Jochen Liske

Faculty and Staff Scholarship

A fundamental bimodality of galaxies in the local Universe is apparent in many of the features used to describe them. Multiple sub-populations exist within this framework, each representing galaxies following distinct evolutionary pathways. Accurately identifying and characterizing these sub-populations requires that a large number of galaxy features be analysed simultaneously. Future galaxy surveys such as LSST and Euclid will yield data volumes for which traditional approaches to galaxy classification will become unfeasible. To address this, we apply a robust k-means unsupervized clustering method to feature data derived from a sample of 7338 local-Universe galaxies selected from the Galaxy And Mass …

The Frequency Of Dust Lanes In Edge-On Spiral Galaxies Identified By Galaxy Zoo In Kids Imaging Of Gama Targets, Benne W. Holwerda, Lee Kelvin, Ivan Baldry, Chris Lintott, Mehmet Alpaslan, Kevin A. Pimbblet, Jochen Liske, Thomas Kitching, Steven Bamford, Jelte De Jong, Maciej Bilicki, Andrew Hopkins, Joanna Bridge, R. Steele, A. Jacques, S. Goswami, S. Kusmic, W. Roemer, S. Kruk, C. C. Popescu, K. Kuijken, L. Wang, A. Wright

Faculty and Staff Scholarship

Dust lanes bisect the plane of a typical edge-on spiral galaxy as a dark optical absorption feature. Their appearance is linked to the gravitational stability of spiral disks; the fraction of edge-on galaxies that displays a dust lane is a direct indicator of the typical vertical balance between gravity and turbulence: a balance struck between the energy input from star formation and the gravitational pull into the plane of the disk. Based on morphological classifications by the Galaxy Zoo project on the Kilo Degree Survey (KiDS) imaging data in the Galaxy and Mass Assembly (GAMA) fields, we explore the relation …

Askap Commissioning Observations Of The Gama 23 Field, Denis A. Leahy, A. M. Hopkins, R. P. Norris, J. Marvil, J. D. Collier, E. N. Taylor, J. R. Allison, C. Anderson, M. Bell, M. Bilicki, J. Bland-Hawthorn, S. Brough, M. J.I. Brown, S. Driver, G. Gurkan, L. Harvey-Smith, I. Heywood, Benne W. Holwerda, J. Liske, A. R. Lopez-Sanchez, D. Mcconnell, A. Moffett, M. S. Owers, K. A. Pimbblet, W. Raja, N. Seymour, M. A. Voronkov, L. Wang

Faculty and Staff Scholarship

We have observed the G23 field of the Galaxy AnMass Assembly (GAMA) survey using the Australian Square Kilometre Array Pathfinder (ASKAP) in its commissioning phase to validate the performance of the telescope and to characterise the detected galaxy populations. This observation covers ∼48 deg2 with synthesised beam of 32.7 arcsec by 17.8 arcsec at 936MHz, and ∼39 deg2 with synthesised beam of 15.8 arcsec by 12.0 arcsec at 1320MHz. At both frequencies, the root-mean-square (r.m.s.) noise is ∼0.1 mJy/beam. We combine these radio observations with the GAMA galaxy data, which includes spectroscopy of galaxies that are i-band selected with a …

Quantum Metalanguage And The New Cognitive Synthesis, Alexey V. Melkikh, Andrei Khrennikov, Roman V. Yampolskiy

Faculty and Staff Scholarship

Problems with mechanisms of thinking and cognition in many ways remain unresolved. Why are a priori inferences possible? Why can a human understand but a computer cannot? It has been shown that when creating new concepts, generalization is contradictory in the sense that to be created concepts must exist a priori, and therefore, they are not new. The process of knowledge acquisition is also contradictory, as it inevitably involves recognition, which can be realized only when there is an a priori standard. Known approaches of the framework of artificial intelligence (in particular, Bayesian) do not determine the origins of knowledge, …

Maintaining Lumbar Spine Stability: A Study Of The Specific And Combined Effects Of Abdominal Activation And Lumbosacral Orthosis On Lumbar Intrinsic Stiffness, Christian Larivière, Jean-Alexandre Boucher, Hakim Mecheri, Daniel Ludvig

Études primaires

Abstract

Background:

Two potential interventions for enhancing lumbar stability are to actively increase abdominal muscle activity, either through the abdominal drawing-in maneuver (ADIM) or bracing, and passively increase lumbar stiffness using a lumbosacral orthosis (LSO).

Objective:

To compare the increase in lumbar stiffness after 2 active interventions (ADIM versus bracing) and 1 passive intervention (LSO), and to evaluate the combined effect of active (abdominal bracing) and passive interventions.

Methods:

In this experimental and comparative study, lumbar stiffness, a surrogate measure of lumbar stability, was estimated in 25 healthy individuals during 7 trunk perturbation conditions: (1) control, (2) ADIM, (3) bracing …

The Immediacy Of Genome Editing And Mitochondrial Replacement, Raymond C. O'Brien

Scholarly Articles

After human DNA was first defined in 1953, the parallel science of assisted reproductive technology achieved a successful human birth through in vitro fertilization in 1978. Science then went on to facilitate gestational surrogacy, banking human reproductive materials, such as embryos, and greater opportunities for couples and individuals to become parents. Fertility clinics were established throughout the world to help persons and couples achieve parenthood, contributing to a steady increase in babies born through assisted reproductive means. Gradually, both federal and state laws in the United States were enacted to collect data from the fertility clinics, mandate insurance coverage of …

Exploring The Role Of Emotions In Clinical Legal Education: Inquiry And Results From An International Workshop For Legal Educators, Catherine F. Klein, Kate Seear, Lisa Bliss, Paul Galowitz

Scholarly Articles

Clinical legal education provides a unique opportunity to engage with emotions. This article describes and reflects on an interactive workshop that examined the nature, meaning and significance of emotions in clinical legal education. Through a variety of incorporated staged activities, employing the teaching methods of scaffolding as well as backward design, participants explored aspects of the emotional dimensions of the relationships between clinical teachers/supervisors and their students, along with the relationship between students and their clients. Participants extracted ideas for how educators should approach emotions when they surface in legal clinics. This article provides a detailed overview regarding the rationale …

Creative Lesson Planning With College And Career Readiness Standards: Thoughts From The Curriculum Library, Margaret Robillard

Journal of Excellence in College Teaching and Learning

Preservice teachers carefully craft lesson plans to meet the academic needs of elementary through high school students in their fieldwork. They rely in part on finding high quality texts and trade books that relate to College and Career Readiness Standards (CCR). While college curriculum libraries are excellent sources for materials, their organization often is not aligned with national curriculum academic standards. Preservice teachers therefore sometimes struggle to find appropriate analog resources to create lesson plans that integrate disciplinary literacy. This research utilizes CCR standards, survey data from stakeholders, and library organizational research literature to create a categorization system based on …

Reflections On Changing Pedagogy Of Augmentative And Alternative Communication, Kelly Kleinhans, Lauren E. Bland, Richard Dressler

Journal of Excellence in College Teaching and Learning

Augmentative and alternate communication (AAC) is a service delivery area in the field of speech-language pathology. Individuals with significant and complex communication impairments benefit when a speech-language pathologist develops a communication system that either replaces or augments traditional speech. AAC includes the use of assistive technology designed to represent language and produce voice output. The profession's credentialing body, the American Speech-Language Hearing Association, requires university training programs to document student's knowledge and skills in AAC for working with clients across the lifespan. The authors reflect on how pedagogy associated with AAC has been transformed over time by external influences like …

Rotator Cuff Tear Progression In Professional Contact Athletes, Gautam Yagnik, William Davis, Michael Swartzon, John Uribe

All Publications

No abstract provided.

The Effect Of Extensible And Non-Extensible Lumbar Belts On Trunk Postural Balance In Subjects With Low Back Pain And Healthy Controls, Ali Shahvarpour, Richard Preuss, Christian Larivière

Études primaires

Background

Previous findings suggest that wearing a lumbar belt may benefit some patients with low back pain; however, the mechanisms of action are not yet fully understood.

Research question

The effect of wearing two flexible (extensible and non-extensible) lumbar belts on trunk postural control was investigated during an unstable sitting task.

Methods

Healthy subjects and subjects with LBP sat on a wobbling chair, with and without the lumbar belts. Chair rotation was measured in the sagittal and frontal planes, and 10 linear and nonlinear measures of balance were computed to assess the quantity (3 measures) and quality (7 measures) of …

Ultrasound Measures Of The Abdominal Wall In Patients With Low Back Pain Before And After An 8-Week Lumbar Stabilization Exercise Program, And Their Association With Clinical Outcomes, Christian Larivière, Sharon M. Henry, Dany H. Gagnon, Richard Preuss, Jean-Pierre Dumas

Études primaires

Background

Lumbar stabilization exercise programs (LSEPs) act positively on clinical outcome measures in patients with low back pain (LBP), but the underlying mechanisms are not well understood. Among the various neuromuscular mechanisms, a good candidate is better activation of the abdominal wall, as measured with rehabilitative ultrasound imaging (RUSI).

Objectives

To determine whether RUSI measures are (1) sensitive to LBP status and treatment (LSEP) and (2) correlate with clinical outcomes following the LSEP.

Design

An exploratory one-arm clinical trial with healthy participants as a control group.

Setting

LSEP was delivered in a clinical setting; outcomes were measured in a laboratory …

Use Of Magnetic Resonance Image Registration To Estimate Displacement In The Human Earcanal Due To The Insertion Of In-Ear Devices, Simon Benacchio, Olivier Doutres, Arthur Varoquaux, Éric Wagnac, Arnaud Le Troter, Virginie Callot, Franck Sgard

Études primaires

In-ear devices are used in a wide range of applications for which the device's usability and/or efficiency is strongly related to comfort aspects that are influenced by the mechanical interaction between the device and the walls of the earcanal. Although the displacement of the earcanal walls due to the insertion of the device is an important characteristic of this interaction, existing studies on this subject are very limited. This paper proposes a method to estimate this displacement in vivo using a registration technique on magnetic resonance images. The amplitude, the location and the direction of the earcanal wall displacement are …

Autonomic And Redox Imbalance Correlates With T-Lymphocyte Inflammation In A Model Of Chronic Social Defeat Stress, Cassandra M. Moshfegh, Safwan K. Elkhatib, Christopher W. Collins, Allison J. Kohl, Adam J. Case

Journal Articles: Cellular & Integrative Physiology

Patients diagnosed with post-traumatic stress disorder (PTSD) are at a significantly elevated risk of developing comorbid inflammatory conditions, but the mechanisms underlying this predilection remain unclear. Our previous work has shown that T-lymphocytes exposed to elevated levels of norepinephrine (NE) displayed a pro-inflammatory signature reminiscent of an autoreactive phenotype. With this, we hypothesized that the increased sympathetic tone observed during psychological trauma may be promoting pro-inflammatory T-lymphocytes, which causes a predisposition to comorbid inflammatory conditions. Here, we examined the consequences of psychological trauma on splenic T-lymphocytes using a mouse model of repeated social defeat stress. Social defeat led to anxiety-like …

Rethinking Information Literacy Assessment: Relevance, Reliability, And Validity Of Constructs And Measures, Melissa Clark

Librarian and Staff Publications

Information literacy assessment has traditionally approached student learning as the acquisition of declarative knowledge, which can be measured with easily-graded true/false and multiple-choice questions. Although such measures may prove highly reliable in test-retest situations, they are not valid measures of knowledge or learning, because they fail to test procedural and conditional knowledge, both of which are essential for students to reach the higher levels of Bloom’s taxonomy. This omission can partially explain the disconnect between scores on tests of information literacy and students’ continued poor performance on research assignments. Furthermore, information literacy assessment has failed to address the social and …

Chemical Synthesis Of Galacto-Oligosaccharides And Evaluation Of Their Prebiotic Properties, Pranpariya Ponpakdee

Chulalongkorn University Theses and Dissertations (Chula ETD)

Galacto-oligosaccharides (GOS) are composed of galactose and glucose between 2–8 units or disaccharide comprising 2 units of galactose linked by glycosidic bonds. GOS exhibits prebiotic activity and widely used in infant formula. Commercial GOS was achieved as mixture by enzymatic synthesis of lactose with β-galactosidase. Due to the nature of the enzymatic derived-GOS, the structure-activity relationship of GOS and prebiotic activity is mainly ambiguous. In this work, we presented the development towards a production of GOS by chemical synthesis starting from lactose. First, lactose was isolated from liquid whey with 3.90% w/v recovery. Lactose was then hydrolyzed to produce galactose …

Malate Dehydrogenase Allele Frequencies In Honeybee Populations And Its Correlation With Temperature, Thitipan Meemongkolkiat

Chulalongkorn University Theses and Dissertations (Chula ETD)

Temperature is one of the major factors that affect on the variation in honeybee in term of DNA and protein variants. The aim of this study is to investigate whether the three structural variants of the cytosolic malate dehydrogenase (cMDH) protein of the honeybee can explain clinal variation in allele frequencies. To test the hypothesis that there is a molecular basis to the temperature-dependent fitness of cMDH variation, the enzymic activity was determined across a range of temperatures in vitro. The F and S alleles have higher activity and are less sensitive to high temperatures than the M allele. Next, …