University of Oregon Department of Art MFA

34 pagesThe Department of Art at the University of Oregon is pleased to present our 2019 MFA Thesis Exhibition at Disjecta Contemporary Art Center in Portland, Oregon. Marking the culmination of three years of rigorous studio investigation and critical discourse, the ten artists in this exhibition engage a wide breadth of art making practices that build on and challenge the histories of painting, sculpture, photography, print media, craft and digital practices. The exhibition is the outcome of the expansive work undertaken by our graduates and their intellectual curiosity in looking deeply at the conditions prevalent and pressing in our world today. With dramatic shifts in practice over the past three years, this cohort of artists have created a tight-knit community through the exchange of ideas formed by extensive conversations with our nationally and internationally recognized faculty, visiting artists, critics and curators. For this catalog, we bring our MFA Graduates together with the PHD and MA students in the History of Art and Architecture Department to produce written reflections on the creative processes and concepts behind the works of our ten graduating artists. This collaborative initiative, made possible through the stellar organization of Professor Jenny Lin, highlights what we hope to accomplish in our academic and artistic life – gather together around contexts that matter and build connections that expand our subject positions. So, it is with great pride that we celebrate the final work created by our 2019 MFA graduates at the University of Oregon and we look forward to watching and cheering their creative endeavors yet to come

Temporal flowability evolution of slag-based self-compacting concrete with recycled concrete aggregate

The addition of by-products, such as recycled concrete aggregate and ground granulated blast furnace slag, modify the in-fresh flowability of ordinary self-compacting concrete both initially and over time. A detailed study is presented in this paper of 18 mixtures (SF3 slump-flow class) containing 100% coarse recycled concrete aggregate, two types of cement (CEM I or CEM III/A, the latter with 45% ground granulated blast furnace slag), different contents of fine recycled concrete aggregate (0, 50, or 100%), and three different aggregate powders (ultra-fine limestone powder <0.063 mm, limestone fines 0/0.5 mm, and recycled concrete aggregate 0/0.5 mm). The temporal evolution of slump flow, viscosity, and passing ability, and the values of segregation resistance, air content, fresh and hardened density, and compressive strength were evaluated in all the mixtures. The addition of fine recycled concrete aggregate and CEM III/A improved initial slump flow and passing ability by 6%, due to their higher proportion of fines. Nevertheless, the temporal loss of flowability within 60 min was 5.8% lower when adding natural aggregate and CEM I. Viscosity and air content increased 26% on average following additions of fine recycled concrete aggregate, unlike with additions of ground granulated blast furnace slag. Flowability and strength increased with the addition of limestone fines 0/0.5 mm. According to multi-criteria analyses, the mixtures with CEM III/A, 50% fine recycled concrete aggregate, and limestone fines 0/0.5 mm showed an optimal balance between their flowability (SF2 slump-flow class 60 min after the mixing process), compressive strengths (around 60 MPa), and carbon footprints.Spanish Ministry MCIU, AEI and ERDF [grant numbers FPU17/03374 and RTI 2018-097079-B-C31]; the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231, BU119P17]; the Youth Employment Initiative (JCyL) and ESF [grant number UBU05B_1274]; the University of Burgos [grant number SUCONS, Y135. GI], UPV/EHU (PPGA20/26) and, finally, our thanks also to the Basque Government research group IT1314-19

Penumbral imaging and functional outcome in patients with anterior circulation ischaemic stroke treated with endovascular thrombectomy versus medical therapy: a meta-analysis of individual patient-level data

Background: CT perfusion (CTP) and diffusion or perfusion MRI might assist patient selection for endovascular thrombectomy. We aimed to establish whether imaging assessments of irreversibly injured ischaemic core and potentially salvageable penumbra volumes were associated with functional outcome and whether they interacted with the treatment effect of endovascular thrombectomy on functional outcome. Methods: In this systematic review and meta-analysis, the HERMES collaboration pooled patient-level data from all randomised controlled trials that compared endovascular thrombectomy (predominantly using stent retrievers) with standard medical therapy in patients with anterior circulation ischaemic stroke, published in PubMed from Jan 1, 2010, to May 31, 2017. The primary endpoint was functional outcome, assessed by the modified Rankin Scale (mRS) at 90 days after stroke. Ischaemic core was estimated, before treatment with either endovascular thrombectomy or standard medical therapy, by CTP as relative cerebral blood flow less than 30% of normal brain blood flow or by MRI as an apparent diffusion coefficient less than 620 μm2/s. Critically hypoperfused tissue was estimated as the volume of tissue with a CTP time to maximum longer than 6 s. Mismatch volume (ie, the estimated penumbral volume) was calculated as critically hypoperfused tissue volume minus ischaemic core volume. The association of ischaemic core and penumbral volumes with 90-day mRS score was analysed with multivariable logistic regression (functional independence, defined as mRS score 0–2) and ordinal logistic regression (functional improvement by at least one mRS category) in all patients and in a subset of those with more than 50% endovascular reperfusion, adjusted for baseline prognostic variables. The meta-analysis was prospectively designed by the HERMES executive committee, but not registered. Findings: We identified seven studies with 1764 patients, all of which were included in the meta-analysis. CTP was available and assessable for 591 (34%) patients and diffusion MRI for 309 (18%) patients. Functional independence was worse in patients who had CTP versus those who had diffusion MRI, after adjustment for ischaemic core volume (odds ratio [OR] 0·47 [95% CI 0·30–0·72], p=0·0007), so the imaging modalities were not pooled. Increasing ischaemic core volume was associated with reduced likelihood of functional independence (CTP OR 0·77 [0·69–0·86] per 10 mL, pinteraction=0·29; diffusion MRI OR 0·87 [0·81–0·94] per 10 mL, pinteraction=0·94). Mismatch volume, examined only in the CTP group because of the small numbers of patients who had perfusion MRI, was not associated with either functional independence or functional improvement. In patients with CTP with more than 50% endovascular reperfusion (n=186), age, ischaemic core volume, and imaging-to-reperfusion time were independently associated with functional improvement. Risk of bias between studies was generally low. Interpretation: Estimated ischaemic core volume was independently associated with functional independence and functional improvement but did not modify the treatment benefit of endovascular thrombectomy over standard medical therapy for improved functional outcome. Combining ischaemic core volume with age and expected imaging-to-reperfusion time will improve assessment of prognosis and might inform endovascular thrombectomy treatment decisions. Funding: Medtronic

Oral sensitivity to oleic acid and food behaviors in athletes

International audienceThe purpose of this study was to test the hypothesis that fat oral-intensity perception may be associated with level of physical activity, food preferences and consumption of fat-rich foods. METHODS: 52 top athletes from different discipline (weightlifting, kayaking, athletics…) of both sexes (27 male, 25 female) underwent anthropometric measurement, assessment of body composition, and completed a 4-day diet record and physical activity diary. In addition, they were screened for oral sensitivity to oleic acid (0.375 mM, 0.75mM, 1.5mM, 3mM, 6mM, 12mM) using triplicate sensory evaluations for each concentration. According to the threshold of fat perception, subjects were allocated to three groups G1 (0.375mM-3mM), G2 (6mM-12mM), G3> (12mM). Further, food habits and behaviors (food habits and behaviors questionnaire) were also established. RESULTS: Male athletes; BMI, 25,3±4,4kg/m², age, 18,88±1,53 years, BF%, 12,52±9,2, TEE, 3763,1±460 kcal . Female athletes; BMI, 24,17±4,54 kg/m², age, 16,11±1,93 years, BF% 21,70±7,4, TEE, 3106±310,05 cal. 85%. (n = 44) of subjects were classified as hyposensitive and nonsensitive (G2, G3). These subjects differed from those who were classified as hypersensitive (G1). Hyposensitive and nonsensitive subjects have a higher training volume, and total energy expenditure. They consumed significantly more energy, fat, saturated fat, fatty foods, , compared to hypersensitive subjects (all P < 0.05). CONCLUSION: An inability to perceive low concentrations of fatty acids in foods was associated with higher training volume and greater consumption of fatty foods. Our results suggest the probability of criminalization of physical activity in the regulation of orosensory fat taste perception and therefore fat intake