Junior Recital, Emily Nesbitt, soprano

The presentation of this junior recital will fulfill in part the requirements for the Bachelor of Music in Performance. Emily Nesbitt studies voice with Michelle Harman-Gulick and receives vocal coaching from Melanie Kohn Day

Identifying Student Discussion in Computer-Mediated Problem Solving Chat

The COMPS project employs computer chat for students working in small groups solving classroom problems. This summer’s project aims to build computer classifiers that could effectively “look over the shoulders” of the students while working, to approximately recognize whether the students are engaging in productive discussion. Research questions are: can we write machine classifiers that can recognize reasoning, agreement, and disagreement in student discussions? Can we achieve this using only a common English vocabulary? Several thousand lines of COMPS transcripts were manually annotated. A topic modelling program was used to determine 10 main topics which appeared in the transcripts and the words in those topics. A Linear Classifier and a Support Vector Machine Classifier used the topic model to predict the annotation of each line of dialogue. To address the common English vocabulary research question, an intersection of many transcripts from different sources was combined with Google word lists and modified to accommodate text-chat conventions. In the normal vocabulary, we found f1 scores of 0.7 and above for reasoning. Using only common vocabulary, the scores were slightly lower. The next step is to train our topic model on a combination of transcripts and apply it to other transcripts from different student discussions

Senior Recital, Emily Nesbitt, soprano

Senior RecitalEmily Nesbitt, pianoCharles Lindsey, pianoThe presentation of this Senior Recital will fulfill in part the requirements for the Bachelor of Music degree in Performance. Emily Nesbitt studies voice with Michelle Harman Gulick and receives vocal coaching from Melanie Kohn Day

A place to cook: A scoping review

There has been a growing concern with health equity in public health systems worldwide. It is well known that the primary drivers shaping health are not medical treatments or genetics, but the conditions in which we live. Conditions, such as food and housing insecurity are pervasive problems in North America, but their relationship is not well understood. While housing and food security remain to be problems in high-income countries, there is minimal research linking the two conditions. The objectives of this research are to identify literature involving housing and food as a means to addressing health inequities and to inform future research. As well, we identify barriers and opportunities on how to address multiple social determinants of health (SDH) from an intersectoral approach. We used Arksey and O’Malley (2005) scoping review design and Dahlgren and Whitehead’s (2007) SDH as a conceptual framework. The most prominent drivers shaping health that are associated with housing and food insecurity are income and material needs, housing status, the built environment, social support networks, and the food environment, but they do not occur in isolation. Three research themes emerged from this review: (1) healthcare access and utilization consequences; (2) typifying the causes and solutions to housing and food insecurity; (2) gaps in research design. There are two emerging challenges to addressing multiple SDH challenges: (a) public health paradigms that frame causes and solutions to health inequalities, and (b) the effect on professional roles, structural-level decision making, and contribution to silo interventions. Opportunities to overcome challenges and advance the SDH agenda are guaranteed income, intersectionality and intersectoral collaboration, and approaching health inequalities with a social justice orientation. Silo interventions are ineffective in achieving health equity and addressing the SDH. Pathways to address food and housing insecurity require coordinated efforts and recognition of the structural determinants guided by political ideology. The task of addressing the SDH in a coordinated way is a daunting mission, given the recognizably challenging domination of the neoliberalism and individualism guiding policy and interventions. However, if reducing inequities is truly a health and population challenge worth striving for, political and structural change is essential

Remembering Wonder

This is a booklet about research on alternative play and memorial structures

Representing moisture fluxes and phase changes in glacier debris cover using a reservoir approach

Due to the complexity of treating moisture in supraglacial debris, surface energy balance models to date have neglected moisture infiltration and phase changes in the debris layer. The latent heat flux (QL) is also often excluded due to the uncertainty in determining the surface vapour pressure. To quantify the importance of moisture on the surface energy and climatic mass balance (CMB) of debris-covered glaciers, we developed a simple reservoir parameterization for the debris ice and water content, as well as an estimation of the latent heat flux. The parameterization was incorporated into a CMB model adapted for debris-covered glaciers. We present the results of two point simulations, using both our new “moist” and the conventional “dry” approaches, on the Miage Glacier, Italy, during summer 2008 and fall 2011. The former year coincides with available in situ glaciological and meteorological measurements, including the first eddy-covariance measurements of the turbulent fluxes over supraglacial debris, while the latter contains two refreeze events that permit evaluation of the influence of phase changes. The simulations demonstrate a clear influence of moisture on the glacier energy and mass-balance dynamics. When water and ice are considered, heat transmission to the underlying glacier ice is lower, as the effective thermal diffusivity of the saturated debris layers is reduced by increases in both the density and the specific heat capacity of the layers. In combination with surface heat extraction by QL, subdebris ice melt is reduced by 3.1% in 2008 and by 7.0% in 2011 when moisture effects are included. However, the influence of the parameterization on the total accumulated mass balance varies seasonally. In summer 2008, mass loss due to surface vapour fluxes more than compensates for the reduction in ice melt, such that the total ablation increases by 4.0 %. Conversely, in fall 2011, the modulation of basal debris temperature by debris ice results in a decrease in total ablation of 2.1 %. Although the parameterization is a simplified representation of the moist physics of glacier debris, it is a novel attempt at including moisture in a numerical model of debris-covered glaciers and one that opens up additional avenues for future research

Evaluation of an Unfractioned Heparin Pharmacy Dosing Protocol for the Treatment of Venous Thromboembolism in Nonobese, Obese, and Severely Obese Patients

Background: Despite large interpatient variability in dose response, heparin is utilized for treatment of venous thromboembolism (VTE). Current data on the optimal heparin dosing in obese patients are conflicting. Objective: The objective was to evaluate the time and dose required to achieve a therapeutic activated partial thromboplastin time (aPTT) in nonobese, obese, and severely obese patients using a pharmacist-directed heparin dosing protocol. Methods: This was a retrospective cohort study in a single-center community hospital inpatient setting. Adult patients receiving heparin for VTE treatment from July 1, 2013, to July 31, 2015, were evaluated. Patients were categorized into 3 groups: nonobese (BMI \u3c 30 kg/m2), obese (BMI = 30-39.9 kg/m2), and severely obese (BMI ≥ 40 kg/m2). Data on height, weight, initial bolus dose, initial infusion rate, time to therapeutic aPTT, and therapeutic infusion rate were collected. Dosing body weight (DBW) was utilized for patients 20% over their ideal body weight (IBW). The primary outcome was time to therapeutic aPTT. Results: Analysis included 298 patients. Median times to therapeutic aPTT (hours:minutes) in the nonobese, obese, and severely obese were 15:00 (interquartile range [IQR] = 8:05-23:21), 15:40 (IQR = 9:22-25:10), and 15:22 (IQR = 7.54-23:40), respectively (P = 0.506). There was no difference in bleeding among the nonobese (14%), obese (13.9%), or severely obese groups (7.9%; P = 0.453). No adverse thrombotic events occurred during hospitalization. Conclusion: Using a DBW for heparin dosing in patients 20% over their IBW resulted in similar times to therapeutic aPTT and adverse events in the nonobese, obese, and severely obese

E151 (sym15), A Pleiotropic Mutant of Pea (Pisum sativum L.), Displays Low Nodule Number, Enhanced Mycorrhizae, Delayed Lateral Root Emergence, and High Root Cytokinin Levels

In legumes, the formation of rhizobial and mycorrhizal root symbioses is a highly regulated process which requires close communication between plant and microorganism. Plant mutants that have difficulties establishing symbioses are valuable tools for unravelling the mechanisms by which these symbioses are formed and regulated. Here E151, a mutant of Pisum sativum cv. Sparkle, was examined to characterize its root growth and symbiotic defects. The symbioses in terms of colonization intensity, functionality of micro-symbionts, and organ dominance were compared between the mutant and wild type. The endogenous cytokinin (CK) and abscisic acid (ABA) levels and the effect of the exogenous application of these two hormones were determined. E151 was found to be a low and delayed nodulator, exhibiting defects in both the epidermal and cortical programmes though a few mature and functional nodules develop. Mycorrhizal colonization of E151 was intensified, although the fungal functionality was impaired. Furthermore, E151 displayed an altered lateral root (LR) phenotype compared with that of the wild type whereby LR emergence is initially delayed but eventually overcome. No differences in ABA levels were found between the mutant and the wild type, but non-inoculated E151 exhibited significantly high CK levels. It is hypothesized that CK plays an essential role in differentially mediating the entry of the two micro-symbionts into the cortex; whereas it would inhibit the entry of the rhizobia in that tissue, it would promote that of the fungus. E151 is a developmental mutant which may prove to be a useful tool in further understanding the role of hormones in the regulation of beneficial root symbioses

Social Ties, Disorder and Distress: A Qualitative Examination of the Protective Effects of Social Capital in Neighborhoods

This paper is examines how social ties mediate the negative impact of neighborhood disorder by changing people’s perceptions of their neighborhood. It draws on and helps to advance an understanding of social capital as a protective cognitive resource that people use to frame their understandings of their local environments. This paper extends current research about the importance of social capital as a protective factor at the neighborhood level while taking advantage of a unique research setting, a Habitat for Humanity neighborhood, to begin to uncover how social capital operates at the micro-level to produce positive effects. We find that social networks operate as a resource which impacts the way people perceive and interpret agreed upon problems