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Prevalence of exercise-induced pulmonary hemorrhage, tracheal mucus and recurrent laryngeal neuropathy in competitive draft pulling horses
No full textRespiratory disease is common in the horse population and is often associated with poor performance in equine athletes. Despite their outstanding strength and aerobic capacity, little regard is given to draft horses and the respiratory disorders they may encounter when performing athletic activity. For this reason, the objectives of this study were: (1) to determine the prevalence of exercise-induced pulmonary hemorrhage (EIPH), tracheal mucus (TM) and recurrent laryngeal hemiplegia (RLH) in a population of competitive draft pulling horses, and (2) to determine if there was an association between horse weight, height, age, amount pulled, or competition placing with EIPH, TM or RLH in draft pullers. Results of this study identified EIPH in 26% of the study population, RLH in 32% and TM in 82% of participating horses; however, no risk factors were identified for the development of these problems in draft pulling horses.Government of Prince Edward Island, Department of Agriculture and Lan
Development, growth and metabolic effects in stage IV lobster (Homarus americanus) following chronic exposure to sediments spiked with commercial formulations of deltamethrin and permethrin
No full textCoastal and estuarine ecosystems are environments heavily influenced by natural and anthropogenic activities. Chemicals used for pest control in agriculture and aquaculture may accumulate in natural coastal environments. Pyrethroids are common pesticides that are used on crops as well as applied to aquaculture pens and then may disperse in the surrounding ocean once treatment is complete. This study observed the sublethal effects of two pyrethroids, permethrin and deltamethrin (within commercially available formulations), on post-larval stage IV American lobster (Homarus americanus) using growth parameters and metabolic rate as indicators. Observed effects on growth parameters were a decrease in size increment and specific growth rate as well as an increase in intermolt period in stage IV lobsters exposed to 100 μg/kg permethrin. No significant differences were found for intermolt period, size increment, or specific growth rate in deltamethrin-exposed stage IV lobsters. Metabolic rates were not significantly different between deltamethrin-exposed and control lobsters, however, this sublethal effect warrants further investigation. Collectively, these results represent the first examination of the sublethal effects of exposure to pyrethroids formulations in post-larval lobsters, highlighting the potential for effects on non-target marine organisms.Atlantic Lobster Sustainability Measures of the Department of Fisheries and Oceans, CanadaPEI Atlantic Shrimp Corp. In
The bridge effect: Critical reflections in the age of technological solutionism
No full textThe Bridge Effect features bridged islands―both physical and metaphorical―from around the globe. Bridging an island is often a polarizing subject. A permanent link allows for the transport of people and goods on- and off-island and can even allow an island to remain a viable place to live. At the same time, it changes the character of an island as bounded and set apart from the mainland. Not all bridges are physical. In recent years, access to broadband is allowing islanders to be part of the global world but still make a living on their islands. From the economic effects resulting from these links to how islanders feel about themselves once they’ve been joined to a mainland or another island, the book explores if and how “islandness”―and, ultimately, island identity―has changed on these small islands
Observed practices of design engineers
No full textWhile there are numerous studies documenting the skills and abilities of experienced designers and engineers, research is needed to document the specific practices or behaviors of design engineers, a subset of creative engineers who solve complex problems. To document observed practices of design engineers, twelve experienced engineers were asked to describe an expert design engineer, someone who always has the solution when others do not. Using inductive thematic analysis, nine observed practices with 30 subtopics were identified from 186 data points. The observed practices of design engineers include being collaborative, confident, creative, independent, intuitive, inquisitive, motivated, systematic, and versatile. Eight additional data points document varying observations of design engineers’ interest in mentoring or management. While participants spoke with reverence about the design engineers, some observed practices could have a negative connotation, such as being egotistical, conservative to a fault, and not good at public speaking. One realization from this paper is that studies generally report admirable practices to replicate, when potentially negative practices can help engineering educators to better prepare students for industry. Lastly, this article provides engineering educators with a mapping between the observed practices of design engineers and the graduate attributes used in accrediting Canadian engineering programs
Espace fermé, espace ouvert : Proust à la recherche du familier
No full textThe limited space of the room acquires particular values in Proust. The work In Search of Lost Time is built on numerous oppositions which are expressed among other things at the level of space: also, the novelist reveals how the room can be either threatening or welcoming, depending on the imagination invested in it. This is how the child narrator's bedroom, benevolent, can become a torture when night falls and he must find himself alone, and the hotel room, threatening and disturbing, can turn into a quiet and reassuring space. thanks to the intervention of the female character, namely the grandmother. The duality of the two sides, familiar and foreign, contains an antithesis but also a complementarity which proves fundamental in the initiation and experience of the future writer
Problematizing workplace learning for the work-from-home and hybrid workforce following COVID-19
No full textPrior to the COVID-19 pandemic, I was part of a team piloting the option for staff to telework one day per week. It worked well. Employees empowered to manage their own schedule chose their work-from-home day, and this allowed for desk-sharing, healthier work-life balance, and an opportunity to increase productivity without office distractions. When the pandemic arose, and the decision to convert the workforce into a full-time emergency work-from-home model to reduce the contagion of coronavirus by physically distancing employees using work-from-home options, most of us felt we were ready to work. Or so we thought. The telework agreements we signed pre-pandemic did not envision the scenarios many of us faced: isolation, homeschooling, shared internet and workspace with spouses or children. For most of us, many aspects of our daily lives changed, and there was no end in sight to the changes we faced. The time saved in commuting and school drop-offs was absorbed by sanitizing and sanity-seeking while the globe watched hospital beds overflow and wildlife return to the cities (Rabou, 2020). All of us collectively began to wait for a return to normal. This qualitative study assembles, organizes, and examines existing literature through the lens of Bronfenbrenner’s ecological systems theory. Doing so rearranges the alignments of the literature from historical and linear to relational, developmental, and systematic. Treating the literature as a data set, its reorganization produces new findings outlining key factors and considerations for present day work-from-home and hybrid workplace learners to contribute to the field of workplace learning. Additionally, a Foucauldian-informed narrative approach including the author’s lived experience as an educator and employee impacted by the pandemic is used to problematize and contextualize the newly arranged literature to better examine the pedagogy of effective online workplace learning in light of the pandemic. Research that problematizes, contextualizes, and re-assembles existing literature is critical for understanding how the COVID-19 realities have generated new learning circumstances that can be addressed by researching previous knowledge claims. Importantly, the theoretical lens of Bronfenbrenner’s ecological systems theory is used to understand how the factors impacting human development manifest in workplace learning needs following the onset of the COVID-19 pandemic, especially in light of the existing virtual workforce (Bronfenbrenner, 1996). This study will contribute to public knowledge on the lived experience of employees impacted by the pandemic, will better order and contextualize existing research findings in this field, and will identify gaps in the existing literature warranting further examination. Results will contribute to existing literature available on this recent and complex topic of workplace learning for employees since the onset of COVID-19, and help researchers design new studies to inform approaches for later systematic reviews (Mayor & Suarez, 2019). The result is compiled evidence to support a recent and significant cultural shift around workplace learning accelerated by the massive immigration of a multigenerational workforce with varying levels of digital literacy into virtual work environments. This work examines key imminent considerations for workplace learning in a post-COVID economy by examining the historical approach to the education of workforces throughout four industrial revolutions, and a recent corresponding increased need for employees to think critically and operate digitally
Optimization of energy resources in various building cluster archetypes
No full textThe current work presents the development of building cluster archetypes, and the optimization of their energy resources mix. Twelve archetypes of building clusters are developed to reflect current North American practices. These archetypes range from low-density, all residential clusters, to high-density mixed-use clusters. A methodology is developed to explore near-optimal mixtures of renewable and alternative energy resources and their interaction with the existing energy grid. The methodology as well includes a sub-routine that examines energy sharing potential among clusters. The application of the optimization methodology to the selected archetypes shows that the optimal mix of energy sources varies according to the type of the cluster and its density. For instance, while roof-integrated PV panels can supply all the energy needs of low-density residential clusters, backup energy sources are required for higher density residential clusters to fulfill the thermal loads. The electrical energy demand of high-density mixed-use clusters can be met by involving alternative sources of energy, such as waste to energy. In the mixed-use case presented in this study, the waste required to satisfy the total electric load is as high as 10:1 as compared to the waste disposal. Sharing of energy resources among various clusters allows reducing the waste needed by about 37%
The association between materialism and perceived relationship quality in young adults
No full textThis study aimed to determine how materialism is related to relationship quality, as conceptualised across multiple levels, including an individual’s relationship to self (self-esteem and attachment), relationships with others (family, peers and intimate partners) and relationships in the broader social context (online and community). Young adults between 18 and 30 years of age (N = 205) completed an online self-report questionnaire that assessed materialism, self-esteem and attachment style, as well as a number of relationship variables of interest. Data were analysed using bivariate correlations and regression analyses. Lower self-esteem, anxious attachment and poorer quality of family relationships predicted higher levels of materialism (p < .05), even after controlling for demographic and socio-economic variables (p < .05), with self-esteem showing the strongest association. These findings were interpreted within a developmental framework that posits a central role for the individual’s early relationships and immediate environment in the etiology of materialism, although future longitudinal studies are needed to test this theory explicitly.University College Londo
Publishing student-generated problems in an OER: Student perceptions
No full textFundamental engineering courses provide learning opportunities for students to develop problem solving and creativity skills, connect theoretical course material to the real-world, and solve complex, abstract problems such as those found in the workplace. Through a mixed methods study of students in a statics course in a small Canadian university, we explored student motivation and perception of composing and publishing their own course-relevant problems in an open educational resource (OER) textbook. We found that generating and solving their own problems for each of the six homework assignments helped students to anchor theory in the real-world, be creative, and understand the material more fully. In total, 93% of students in the course created at least one student-generated homework problem, and after the semester ended, 58% of students submitted a combined total of 59 high-quality, interesting, real-world examples to be included in the OER textbook. Of the 28 study participants, 26 students (93%) felt the activity should be repeated in future years. Students were motivated to publishing examples in the OER textbook by a desire to help future students and gain understanding of the material. Students found generating problems time-consuming, but enjoyed expressing their creativity