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Modernisation Des Parachutes De Transporteurs De Mines : Volet 3 : Perte De Contrôle De La Cage, Laurent Giraud, Bertrand Galy

États de la question, rapports d’expertise et revues de littérature

Cette étude a été initiée par une lettre datée du 25 octobre 2013 et signée par un membre de la partie syndicale du sous-comité sur les machines d’extraction de la Commission de la santé et de la sécurité du travail (CSST) [1], demandant au sous-comité de mandater l’Institut de recherche Robert-Sauvé en santé et en sécurité du travail (IRSST) pour évaluer les systèmes d'arrêt d'urgence des transporteurs de mine en usage à travers le monde (parachutes et autres systèmes), dans le but de moderniser les parachutes exigés sur les transporteurs de mine au Québec. Un premier volet, déposé le …

Evolution Of Life-History Characteristics In Gadoidei, Joshua Hittie

Master's Theses

Life-history characteristics (e.g., age and growth) have been used extensively to understand the temporal population dynamics of fish species, but less so within a phylogenetic framework. This study investigates life-history characteristics within the suborder Gadoidei (order: Gadiformes) and to test the extent of phylogenetic signal for those characteristics. To accomplish this, a phylogeny of Gadoidei was first constructed based on both mitochondrial and nuclear genes. Within this phylogenetic framework, life-history traits, including growth rate, age at maturity, and longevity, as well as ecological data, such as water depth and diet type, were mapped to the phylogeny using parsimony analysis to …

Phenotypic Analysis Of Murine Gut Associated Lymphocytes, Madison Flood

Master's Theses

γδ T cells are important in the role of immune homeostasis, especially in relation to the gut. It has been shown that there is a higher proportion of γδ T cells in the intestines than in circulation. With this knowledge, our lab focused on understanding the mechanisms of these cells, specifically regarding immune tolerance. In our preliminary research, we identified a subset of γδ T cells that express Foxp3, a transcription factor essential for the functioning of regulatory T cells, in the neonatal (5 day old) intestine. We hypothesized that these Foxp3+ γδ T cells have immunosuppressive functions upon exposure …

Influences Of Latino Caregivers’ Input And Acculturation On Children’S Bilingual Development: A Speech Sample Analysis, Jordan Sierra Perry

Master's Theses

Interactions with caregivers are important for children’s development. In particular, the language input that young dual language learners (DLLs) receive from their primary caregivers affects their cultural knowledge and their bilingual language outcomes. However, relatively little research has been conducted to investigate the cultural contexts that influence Latino caregivers’ bilingual language use at home, including their acculturation level. Thus, the present study examined the relation between caregivers’ acculturation and their children’s bilingual (Spanish and English) language use, and whether this relation varied as a function of caregivers’ bilingual language use. Parent-report measures of bilingual language use, in addition to video …

Positive Affect Facilitates Reduction In Depression Symptoms During A Mobile Mindfulness-Based Intervention, Andrew Rauch

Master's Theses

Depression negatively impacts the lives of many, and the rates are continuing to rapidly increase. Identifying patterns of modifiable affective psychological mechanisms that contribute to reducing depression symptoms is critical to improve the effectiveness of wellbeing interventions for individuals with depressive disorders. Depression has been characterized by valanced patterns of low positive affect and high negative affect, yet the extent to which these relative patterns of affectivity change in response to intervention remains less clear. The present study evaluated affective patterns in college students (n = 127) with elevated depression symptoms who participated in a randomized controlled trial (RCT) of …

Calcium-Mediated Induction Of Vibrio Fischeri Es114 Biofilms, Katia Elizabeth Semenchuk

Master's Theses

Vibrio fischeri bacteria form biofilms that facilitate symbiotic colonization of the Hawaiian bobtail squid, Euprymna scolopes. These host-associated biofilms require production of the SYP polysaccharide. However, it has been difficult to observe robust biofilm formation in vitro in a laboratory setting using wild-type strain ES114; instead, most work investigating syp-dependent biofilm formation has relied on genetically altered strains. Guided by recent findings that increasing calcium induces c-di-GMP (Tischler et al., 2021), a molecule known in other systems to promote biofilm formation, the question was posed as to whether high levels of calcium alone could promote syp-dependent biofilm formation by ES114. …

Biofilms On Plastic Litter: Community Composition And Activity And The Effects On Ecosystem Processes, Raul F. Lazcano

Master's Theses

The rapid increase of plastic production and disposal has resulted in plastic pollution becoming a global problem. In aquatic ecosystems, plastic litter is a substrate for biofilms, but little research has simultaneously assessed the effects of plastic litter on biofilm activity, community composition, and ecosystem processes. Our objectives were to: (1) measure biofilm activity and community composition on plastic litter relative to a natural surface in an urban river and (2) assess the impact of microplastic pollution on ecosystem metabolism and N2 flux in an oligotrophic lake. For objective (1) we incubated three common plastics with distinct physical and chemical …

Unveiling Bacterial Hitchhikers In The Urobiome, Genevieve Baddoo

Master's Theses

Microbial communities of bacteria, viruses, and fungi form complex interactions in nature. However, our understanding of these communities is limited to those that can be cultured in the lab. Enhanced culture methods have enabled the isolation of numerous fastidious species from urinary tract, definitively proving that the urinary tract of asymptomatic individuals is not sterile. In working with these isolates, our group has observed several instances in which a “purified” isolate actually harbors more than one species. We refer to these additional members as bacterial hitchhikers, a term previously used to describe similar occurrences in soil communities. I hypothesized that …

The Sin Of Racism, Ray Almanza

LMU Theses and Dissertations

This project examines the history of racism in relation to the Catholic Church. This history amounts to an indictment of the Roman Catholic Church not only as a neutral party in the historical emergence of white supremacy, but a directly linked cause of racism. First, it describes how racism emerged in its modern manifestation in three major dimensions which include the geopolitical, economic, and social. Then, it centers on two general forms of analysis, a cultural analysis, and a philosophical analysis. Drawing on insights from Liberation Theology, various themes are highlighted as they apply to the discussion of race in …

Who Gets To Know? Combating Colonial Epistemic Oppression, Timothy J. Cotter

Senior Independent Study Theses

This Independent Study thesis is divided into five chapters. In the introduction, I explain the focus of the paper. In the second chapter, “Landscapes of Epistemic Injustice,” I clarify the concept of epistemic injustice by breaking it down into hermeneutical injustice and testimonial injustice. I argue that we have obligations to each other as knowers and producers of knowledge, and the content of these obligations within a given situation depends upon the social position of both the speaker and the audience or audiences. In the third chapter, “Epistemic Oppression and Colonialism,” I contend that Western colonial projects frequently enact third-order …

Introduction Of Phonological Concepts In An Initial Teacher Education Literacy Unit, Anne Thwaite, Helen Adam, Yvonne Urquhart, Susan Hill

Australian Journal of Teacher Education

Pre-service teachers (PSTs) need sound Knowledge About Language (KAL), both for their own professional communication and for their teaching practice. In the longer term, enhanced KAL will benefit our graduates in their implementation of the Australian Curriculum. This paper reports on work with First Year PSTs at one Australian university. We present an analysis of students’ response to an intervention designed to develop their KAL, focusing on Phonological Awareness (PA) and phonics. While the designed resources were introduced and discussed in class, students mainly accessed them online afterwards. Student achievement was measured by online testing, and attitudes were obtained from …

Challenges And Opportunities In Teaching Writing Online Amidst The Pandemic: Voices From English Language Teachers In Philippine Universities, Veronico N. Tarrayo, Ali G. Anudin, Henelsie B. Mendoza, Erly S. Parungao-Callueng

Australian Journal of Teacher Education

With the sudden transition to online instruction in most educational institutions caused by the COVID-19 pandemic, it can be assumed that there is paucity in research as regards the teaching of writing online during this crisis moment. To address this niche, 13 Filipino university English language teachers were asked to participate in both online semi-structured and follow-up email interviews to describe their experiences in teaching writing online during the pandemic, particularly the challenges they faced, their coping strategies to address these challenges, and the opportunities in online teaching they valued. The interview responses revealed three major challenges in teaching writing …

Learning To Teach Without Teaching: A Mixed Methods Case Study Of Preservice Teachers’ Efficacy Beliefs And Perceptions Of An Evidence-Based Creative Arts Subject, James Deehan, Rachael C. Hutchesson, Paul Parker

Australian Journal of Teacher Education

Recognition of the inherent value of the Creative Arts in society seldom extends beyond rhetoric to meaningful action. The powerful ways the Creative Arts are positioned within curriculum documents, for example, stand in contrast to entrenched problems such as poor teacher attitudes, disengaging teaching practices and low status. Initial Teacher Education (ITE) programs and preservice teachers are essential to the long-term improvement of Creative Arts education. Creative Arts in ITE is also an interesting context in which to examine the divide between Subject Matter Knowledge (SMK) and Pedagogical Knowledge (PK) that has influenced both educational research and policy. This paper …

Conceptualising Early Career Teachers’ Agency And Accounts Of Social Action In Disadvantaged Schools, Margaret Kettle, Bruce Burnett, Jo Lampert, Barbara Comber, Naomi Barnes

Australian Journal of Teacher Education

This article examines the accounts of actions undertaken by Early Career Teachers (ECTs) recently graduated from a social justice-oriented Initial Teacher Education (ITE) program and employed in complex school settings with high levels of student diversity, disadvantage, and poverty. The study drew on theories of teacher agency and agency more broadly to examine the workshadowing observations of the teachers’ practice in classrooms augmented by their reflective accounts in interviews. The study found that the ECTs’ agency, or contextualised social action, can be conceptualised as temporally embedded social engagement directed at addressing their students’ cultural, social and academic needs. The teachers …

Australian Professional Standards For Teachers: Perspectives Of Western Australian Primary School Teachers, Thomas Bertram Quinlivan, Grace Oakley, Jennifer K. Shand

Australian Journal of Teacher Education

This qualitative study investigated the perspectives of Western Australian teachers at the Proficient career stage on the Australian Professional Standards for Teachers (APST), or ‘the Standards’. Fifteen teachers from five independent schools participated in semi-structured interviews and five themes were identified, under the broad categories of Strengths and Challenges of the Standards. Strengths identified were that the Standards support professional practice and career development and are user-friendly. Challenges identified were that the Standards can present challenges to professional practice and are problematic in the way that they are presented. Importantly, participants felt that the Standards ignored important social and relational …

Prevalence And Associated Risk Factors Of African Animal Trypanosomiasis In Cattle In Lambwe, Kenya, Ivy Sylvia Okello, Eliakunda Mafie, Gillian Eastwood, Jahashi Nzalawahe, Leonard E.G Mboera, Samuel Onyoyo

All Rsif Scholars' Publications

Background. African animal trypanosomiasis (AAT) affects livestock productivity in sub-Saharan Africa. This study aimed to determine cattle AAT’s prevalence and associated risk factors in Lambwe Valley, Kenya. Methods. In a cross-sectional survey, livestock owners were recruited from four villages of Lambwe in Homa Bay, Kenya. Blood samples were collected from the jugular veins of cattle, and buffy coat smears were examined under a microscope. Parasites were further detected using polymerase chain reaction (PCR). Using a semistructured questionnaire, livestock owners were interviewed on their knowledge of AAT and control practices. Chi-square and multilevel models were used for the analysis. Results. The …

Towards Resilient Agriculture To Hostile Climate Change In The Sahel Region: A Case Study Of Machine Learning-Based Weather Prediction In Senegal, Chimango Nyasulu, Awa Diattara, Assitan Traore Assitan Traore, Abdoulaye Deme, Cheikh Ba

All Rsif Scholars' Publications

To ensure continued food security and economic development in Africa, it is very important to address and adapt to climate change. Excessive dependence on rainfed agricultural production makes Africa more vulnerable to climate change effects. Weather information and services are essential for farmers to more effectively survive the increasing occurrence of extreme weather events due to climate change. Weather information is important for resource management in agricultural production and helps farmers plan their farming activities in advance. Machine Learning is one of the technologies used in agriculture for weather forecasting and crop disease detection among others. The objective of this …

Interaction With Augmented Reality Sandbox Does Not Produce Greater Gains In Topographic Map Skills For Undergraduate Students, Celeste Kenworthy

Honors Program: Senior Projects (Public)

The augmented reality (AR) sandbox allows students to interact with topographic maps in a 3D space. Being able to understand topographic maps is important to geologists and they are taught in many introductory geology courses. Recent research has focused on whether the AR sandbox can improve students’ topographic map skills. Previous studies have found that students who interact with the AR sandbox do not score significantly better on topographic map assessments (TMAs) than their peers. One proposed reason for this is the limited time students have to interact with the AR sandbox. This study sought to address this by creating …

Optimization And Standardization Of Dms Chemical Mapping Experiments For Probing Rna 3d Structure, Sarah Brady

Honors Program: Senior Projects (Public)

RNA plays a significant and crucial role in biological processes. The properties of RNA are ultimately responsible for each molecule’s unique function. The configuration and structural integrity of RNA is important for its functionality. Chemical mapping detailed in this thesis can be used to analyze the 3D structure of an RNA sequence. RNA is modified via methylation of adenine and cytosine bases using dimethyl sulfate, then reverse transcribed to DNA, then sequenced. The sites where the bases were methylated become mutations in the DNA sequence, allowing for identification of these locations when analyzing sequencing data. Conditions for modification can be …

A Comparison Of Conversational Recast And Milieu In Language Sampling, Riha Karney

Honors Program: Senior Projects (Public)

The purpose of this project was to observe the language and play abilities of two children and recognize the impacts of leading or following with different language interventions. Two preschool age children were selected and compared for these observations: one who has shown signs of communicative or social-emotional challenges and one who showed no such signs. For each child, information was gathered in regard to their behaviors and language during a play interaction with peers. In addition, two language samples were collected by the observer, one using the technique of conversational recast and the other using the technique of milieu …

Effects Of Hearing Aid Amplification On The Ability Of Individuals With Hearing Loss To Perceive Spectral Information, Angela Huebert, Marc Brennan

Honors Program: Senior Projects (Public)

Individuals with sensorineural hearing loss often struggle to understand speech even with the use of hearing aids; simply making sounds louder is not enough. Listeners decode various speech sounds with the help of spectral information, but how hearing aid amplification affects individuals’ ability to perceive those cues is not currently well understood. Altering the way hearing aids are programmed to provide amplification can potentially improve the ability of listeners with sensorineural hearing loss to access spectral information. The purpose of this study was to quantify the effects that hearing aid amplification has on the perception of spectral cues. Outcomes could …

Pulsed Nuclear Space Propulsion And International Law: Some Preliminary, Glenn Reynolds, Leigh Outten

Journal of Air Law and Commerce

Pulsed Nuclear Space Propulsion, researched in the 1950s and 1960s by such eminent physicists as Freeman Dyson, Ted Taylor, Theodore von Karman, and Hans Bethe, involves propelling large spacecraft using compact nuclear explosions from specialized atomic devices. This technology is often known by the name of the Air Force project in which it was developed: Orion. It has long been believed that the 1962 Limited Test Ban Treaty prohibits the use of nuclear pulse space propulsion. After a survey of the Orion project and its results and a review of the applicable law, this Article concludes that language in the …

Cabotage And Deregulatory Anomalies, Timothy M. Ravich

Journal of Air Law and Commerce

The strangest airline route in America is between Pago Pago and the Manu’a Islands in American Samoa. No U.S. carrier serves this “domestic” route. Therefore, it is the only route between two points in the United States (or, more accurately, its territories) that is regularly scheduled service by a non-U.S.-flagged airline. The Pago Pago–Manu’a Islands flight is thus an unprecedented and unique exception to a federal law that permits only U.S. carriers operating U.S.-registered aircraft to fly between U.S. states and territories. Under existing U.S. cabotage policies, moreover, states and U.S. territories are divested of all power to manage …

Ece 302 Children, Families, Communities, And Schools In Sociocultural Contexts—Birth To Grade 6, Lisa Cavallero

Open Educational Resources

Topics covered in this course include: home, school, and community influences, family diversity, roles and experiences of families, early learning, special needs, protecting children, influences of the home and community, working with families.

This course outline includes:

• all assignments for the course (link to assignments packet).
• links to lecture slides
• instructor notes
• additional resources

Note: users will be prompted to make their own copy of documents when clicking on links to Google Docs and Google Slides.

Using Incremental Ensemble Learning Techniques To Design Portable Intrusion Detection For Computationally Constraint Systems, Promise Ricardo Agbedanu, James Rwigema, Richard Musabe, Ignace Gatare

All Rsif Scholars' Publications

Computers have evolved over the years, and as the evolution continues, we have been ushered into an era where high-speed internet has made it possible for devices in our homes, hospital, energy, and industry to communicate with each other. This era is known as the Internet of Things (IoT). IoT has several benefits in a country’s economy’s health, energy, transportation, and agriculture sectors. These enormous benefits, coupled with the computational constraint of IoT devices, make it challenging to deploy enhanced security protocols on them, making IoT devices a target of cyber-attacks. One approach that has been used in traditional computing …

The Impact Of Location Tax Incentives On The Growth Of Rural Economy: Evidence From Ghana, Nana Okyir Baidoo, Eric Amankwaah, Nicholas Mensah

All Rsif Scholars' Publications

Over the last two decades, location tax incentives programs serving as a motivating force have been progressively well known as activities to draw in and/or hold foreign direct investments (FDIs) in economically blighted areas. The study examined the impact of location tax incentives on the growth of the rural economy of Ghana from the period of 1994 to 2018. The data were sourced from Ghana Investment Promotion, UNCTAD, and the World Tax Database. Using ARDL Cointegration and Error Correction Models were estimated to examine the static and dynamic long-run effects as well as the short-run dynamics of the system and …

Linking Tree Cover Change To Historical Management Practices In Urban Parks, Sabine Nix, Lara A. Roman, Marc Healy, John Rogan, Hamil Pearsall

Geography

Context: Urban tree canopy (UTC) in parks is shaped by complex interactions between social and ecological processes over decades. To understand UTC change in parks, it is critical to identify and characterize the unique set of social processes that drive long-term change. Objectives: We sought to uncover the feedbacks between social processes and long-term UTC changes in parks of a post-industrial city that experienced substantial population loss and park disinvestment. Methods: Our mixed-methods approach involved quantifying spatiotemporal UTC changes and connecting those changes to historical management practices for three parks in Philadelphia, PA (US). We delineated UTC using aerial imagery …

A Process-Model Perspective On Recent Changes In The Carbon Cycle Of North America, Guillermo Murray-Tortarolo, Benjamin Poulter, Rodrigo Vargas, Daniel Hayes, Anna M. Michalak, Christopher A. Williams, Lisamarie Windham-Myers, Jonathan A. Wang, Kimberly P. Wickland, David Butman, Hanqin Tian, Stephen Sitch, Pierre Friedlingstein, Mike O’Sullivan, Peter Briggs, Vivek Arora, Danica Lombardozzi, Atul K. Jain, Wenping Yuan, Roland Séférian, Julia Nabel, Andy Wiltshire, Almut Arneth, Sebastian Lienert, Sönke Zaehle, Vladislav Bastrikov, Daniel Goll, Nicolas Vuichard, Anthony Walker, Etsushi Kato, Xu Yue, Zhen Zhang

Geography

Continental North America has been found to be a carbon (C) sink over recent decades by multiple studies employing a variety of estimation approaches. However, several key questions and uncertainties remain with these assessments. Here we used results from an ensemble of 19 state-of-the-art dynamic global vegetation models from the TRENDYv9 project to improve these estimates and study the drivers of its interannual variability. Our results show that North America has been a C sink with a magnitude of 0.37 ± 0.38 (mean and one standard deviation) PgC year−1 for the period 2000–2019 (0.31 and 0.44 PgC year−1 in each …

A Modified Vegetation Photosynthesis And Respiration Model (Vprm) For The Eastern Usa And Canada, Evaluated With Comparison To Atmospheric Observations And Other Biospheric Models, Sharon M. Gourdji, Anna Karion, Israel Lopez-Coto, Subhomoy Ghosh, Kimberly L. Mueller, Yu Zhou, Christopher A. Williams, Ian T. Baker, Katharine D. Haynes, James R. Whetstone

Geography

Atmospheric CO2 measurements from a dense surface network can help to evaluate terrestrial biosphere model (TBM) simulations of Net Ecosystem Exchange (NEE) with two key benefits. First, gridded CO2 flux estimates can be evaluated over regional scales, not possible using flux tower observations at discrete locations for model evaluation. Second, TBM ability to explain atmospheric CO2 fluctuations due to the biosphere can be directly tested, an important objective for anthropogenic emissions monitoring using atmospheric observations. Here, we customize the Vegetation Photosynthesis and Respiration Model (VPRM) for an eastern North American domain with strong biological activity upwind of urban areas. Parameters …

Employee Green Behavior: A Meta-Analysis, Ian M. Katz, Rachel S. Rauvola, Cort W. Rudolph, Hannes Zacher

Psychology Faculty Publications

Due to climate change, the need to protect biodiversity and reduce pollution, and governmental regulations, many organizations are aiming to become more environmentally sustainable. In this context, researchers and practitioners are increasingly interested in the construct of employee green behavior (EGB). EGB has been considered by numerous empirical studies over the last two decades and its associations with demographic characteristics, individual differences, workrelated perceptions, and job attitudes. To systematically synthesize the rapidly growing literature on EGB, we conducted a meta-analysis (k = 135 independent samples; total N = 47,442 employees). Results showed positive associations between EGB and, for example, proenvironmental …