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Viète's formula in "A Fractal Eigenvector"
No full textThis paper explores a relationship of the asymptotic behavior ofthe leading element of eigenvectors belonging to the dominant eigenvalueof a recursively-constructed family of Mandelbrot matrices toViète's formula, helping to explain the appearance of π in thiselement
Traveling waves in cooperative predation: relaxation of sublinearity
No full textIn this paper, we investigate traveling wave solutions of a diffusive predator-prey model which takes into consideration hunting cooperation. Sublinearity condition is violated for the function of cooperative predation. When the basic reproduction number for the diffusion-free model is greater than one, we find a critical wave speed below which no positive traveling wave solution shall exist. On the other hand, if the wave speed exceeds this critical value, we prove the existence of a positive traveling wave solution connecting the predator-free equilibrium to the unique positive equilibrium under a technical assumption of weak cooperative predation. The key idea of the proof contains two major steps: (i) we construct a suitable pentahedron and find inside it a trajectory connecting the predator-free equilibrium; and (ii) we construct a suitable Lyapunov function and use LaSalle invariance principle to prove that the trajectory also connects the positive equilibrium. In the end of this paper, we propose five open problems related to traveling wave solutions in cooperative predation
Que disent-ils? Une analyse dediscours d’un débat portant sur l'information sur la vaccination sur Facebook
No full textThe global resurgence of vaccine preventable diseases is garnering attention amid the COVID-19 pandemic. Vaccination information debates in a Facebook group give participants access to second-hand knowledge conveying personal experiences. Through the lens of Speech Act Theory, this study analysed discourses on pro-and anti-vaccination perspectives along with views from vaccine hesitant groups. Analysis reveals significant criticism of behaviour around information. Findings indicate provision of substantiating information would play a crucial role in debate within divergent information contexts. Application of Speech Act Theory serves to inform participant communication more intimately and empowers their engagement in polarized discussion.La résurgence mondiale des maladies évitables par la vaccination attire beaucoup d’attention au cœur de la pandémie de la COVID-19. Les débats sur la vaccination dans un groupe Facebook permettent aux participants d'obtenir de l’information de seconde main véhiculant des expériences personnelles. À travers le prisme de la théorie des actes de langage, cette étude a analysé les discours sur les perspectives pro-et anti-vaccination ainsi que les points de vue de groupes hésitants à la vaccination. L'analyse révèle une critique importante des comportements informationnels. Les résultats indiquent que l’usage d'informations justificatives jouerait un rôle crucial dans des contextes informationnels divergents. L'application de la théorie des actes de langage sert à comprendre plus intimement les pratiques informationnelles des participants et renforce leur engagement dans une discussion polarisée
Corrigendum and Errata to Samuel C. Rickless's "Locke on the Probability of the Mind's Immateriality," Locke Studies 20 (2020): 1-28, https://doi.org/10.5206/ls.2020.10677
No full textThis article contains corrections to Rickless’s article “Locke on the Probability of the Mind’s Immateriality” published in Locke Studies 20 (2020). The original article may be found at the article’ homepage. Rickless provides a corrigendum to his interpretation of Nicholas Jolley’s Locke’s Touchy Subjects. The editor notes three errata, which have been corrected in the original article
“Well-intentioned in some of the most dangerous ways”: Examining Bill-132 and the subsequent formation of Ontarian university sexual assault policies
No full textThe purpose of this critical feminist review is to discuss the enactment of Bill 132 The Sexual Violence and Harassment Action Plan Act which was passed in March 2016 by the Government of Ontario. First, this paper will provide a general overview of the sociopolitical context surrounding the development of an action plan to address sexual assault on Ontario university campuses. Second, this discussion will outline the central tenets of Schedule 3 of Bill 132, including its scope, intentions, and goals. Last, Schedule 3 will be critically examined to demonstrate how its limitations have maintained adverse outcomes for students attending post-secondary institutions in Ontario. Namely, Schedule 3 of Bill 132 will be critiqued through exploration of the following themes: (1) the lack of universality and standardization of sexual assault policies on post-secondary campuses, (2) the institutionalization of responses to sexual violence, and (3) the exclusion and silencing of student voices in forming policy responses to sexual violence. Examples from existing sexual violence policies will be included to ground this discussion. This review will conclude with a brief consideration of the implications of these critiques on the development and enactment of sexual assault policies in Ontario
Patient care in medical oncology: An interview with Dr. Michael Sanatani
No full textDr. Sanatani is a medical oncologist at the London Regional Cancer Program at Victoria Hospital. Originally interested in general medicine, he then changed routes to medical oncology. We had the opportunity to talk to Dr. Sanatani about the field of medical oncology at LHSC, in Canadian healthcare, and the significance of the patient-physician relationship within the field
Mucosal melanoma of the oral cavity
No full textPrimary mucosal melanomas of the head and neck region are uncommon but aggressive malignancies. These lesions arise from melanocytes located in mucosal membranes, predominantly in the nasal cavity, paranasal sinuses, and oral cavity. Mucosal melanomas account for less than 4% of all melanoma cases and are often missed, due to their occult initial presentations. This is in contrast to cutaneous melanomas, which constitute approximately 85% of melanoma cases and present on surfaces exposed to ultraviolet (UV) radiation. The mainstay of treatment for mucosal melanoma is surgical resection with adjuvant radiotherapy for patients with high-risk features. Despite advancements in surgical techniques, radiotherapy, and even systemic therapies, patients with mucosal melanoma face unfavourable prognoses (5-year disease-free survival <25%) with high rates of locoregional recurrence and/or distant metastases. The present case addresses a 47 year-old man who presents to Otolaryngology with an apparent mucosal melanoma involving the upper lip. This patient was informed of a pigmented lesion on the mucosal surface of the upper left lip three years prior by his dentist. Although largely asymptomatic, the lesion has increased in size. The patient undergoes surgical resection with clear margins and reconstruction. He continues to follow-up to monitor for disease recurrence, having denied adjuvant radiation. This case illustrates the diagnosis and approach to mucosal melanomas and highlights some of the key distinctions between mucosal and cutaneous melanomas