{ "147763-21901945": { "datetime_modified":"20260415T123727", "datetime_start":"20260512T130000", "datetime_end":"20260512T150000", "has_end_time":1, "date_start":"2026-05-12", "date_end":"2026-05-12", "time_start":"13:00:00", "time_end":"15:00:00", "time_zone":"America\/Detroit", "event_title":"Accessibility by Design: Equitable Teaching Practices for Graduate Instructors", "occurrence_title":"", "combined_title":"Accessibility by Design: Equitable Teaching Practices for Graduate Instructors", "event_subtitle":"", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"GSIs often encounter accessibility as a set of requirements handed down after a course is already underway, but many of the most meaningful accessibility decisions happen in the day-to-day work that graduate instructors actually control: discussion facilitation, assignment instructions, slide design, communication with students, and office hours. In this interactive workshop, participants will explore how to integrate accessibility thinking into these everyday teaching practices. Drawing on universal design for learning principles and real scenarios from GSI teaching contexts, we will work through cases where accessibility needs arise and consider how small, proactive choices can prevent barriers before they form. Participants will leave with concrete strategies for making their teaching more equitable, not as a compliance checklist, but as a core part of effective instruction.", "occurrence_notes":null, "guid":"147763-21901945@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/147763", "building_id":"null", "building_name":"Off Campus Location", "campus_maps_id":"1", "room":"", "location_name":"Virtual", "has_livestream":0, "cost":"", "tags":["Graduate Students","Virtual","Workshop"], "website":"https:\/\/events.blackthorn.io\/Hn1RKit7\/5a1oUrClCGX", "sponsors":[ { "group_name":"Center for Research on Learning and Teaching", "group_id":"1006", "website":"http:\/\/www.crlt.umich.edu" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_2x\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/04\/event_147763_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_thumb\/media\/attachments\/2026\/04\/event_147763_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21901945 } , "148099-21902946": { "datetime_modified":"20260505T105842", "datetime_start":"20260512T130000", "datetime_end":"20260512T140000", "has_end_time":1, "date_start":"2026-05-12", "date_end":"2026-05-12", "time_start":"13:00:00", "time_end":"14:00:00", "time_zone":"America\/Detroit", "event_title":"Cameron Tripp Dissertation Defense", "occurrence_title":"", "combined_title":"Cameron Tripp Dissertation Defense: Unraveling Signals of ENSO Variability, Regional Circulation, and Physiological Change in Coral Geochemical Records from the Gal\u00e1pagos Archipelago", "event_subtitle":"Unraveling Signals of ENSO Variability, Regional Circulation, and Physiological Change in Coral Geochemical Records from the Gal\u00e1pagos Archipelago", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"Zoom link: https:\/\/umich.zoom.us\/j\/99268139971\n\nCirculation patterns in the eastern equatorial Pacific (EEP) have an outsized impact on the global climate system. Southeasterly trade winds force upwelling along the equator and the South American coastline, maintaining a regional \u2018cold tongue\u2019 that outgasses large fluxes of carbon dioxide into the atmosphere. Shifts in the intensity of EEP upwelling can moderate the development and decay of the El Ni\u00f1o\u2013Southern Oscillation (ENSO), the largest source of interannual climate variability on Earth. Leading Earth system models predict ENSO impacts to intensify under anthropogenic greenhouse warming, but rely on scarce observations of its historical variability.\n\nIn this dissertation, I leverage oxygen isotopic (\u03b418O) and trace elemental measurements of aragonitic coral skeletons from the Gal\u00e1pagos archipelago to investigate EEP oceanographic conditions in the past and present. Geochemical tracers in scleractinian coral skeletons are powerful archives of past temperature and circulation patterns. At Gal\u00e1pagos, a globally significant biodiversity hotspot in the EEP, these environmental signals are closely linked to ENSO variability.\n\nThe relative abundance of strontium (Sr\/Ca) within Porites lobata corals varies as an inverse function of seawater temperature, as does their \u03b418O composition. In Chapter 2, I generate Sr\/Ca and \u03b418O records from subfossil Gal\u00e1pagos P. lobata to reconstruct ENSO variability at 4000 years before present (BP). Whereas \u03b418O records from the central equatorial Pacific document weakened ENSO between 5000-3000 BP, my results demonstrate robust, negatively skewed ENSO variance, amplified relative to that over the preindustrial last millennium. This contrast illuminates a shift in the spatial profile of ENSO at 4000 BP, with cold La Ni\u00f1a events intensifying and developing farther east in response to orbital forcing.\n\nDramatic shifts in ENSO variability often manifest due to changes in equatorial upwelling patterns. In Chapter 3, I investigate the sensitivity of barium (Ba\/Ca), cadmium (Cd\/Ca), and phosphorus (P\/Ca) concentrations in P. lobata corals to upwelled water supply in the Gal\u00e1pagos archipelago. I statistically decompose vertical velocity data from an ocean physics reanalysis product to reveal two independent modes of regional upwelling associated with the shoaling Equatorial Undercurrent and the southeasterly trade winds, respectively. The coral geochemical tracers document contrasting variance patterns at separate island sites, consistent with distinct regional expressions of these overlapping upwelling patterns. Although coral Ba\/Ca and Cd\/Ca generally covary within a record, implying a shared environmental driver, P\/Ca results are less informative.\n\nPrior analyses have suggested that physiological artefacts can overprint environmental signals in coral Ba\/Ca records, limiting proxy fidelity. In Chapter 4, I evaluate the influence of skeletal density and linear extension rate on Ba\/Ca ratios from a large assemblage of living and subfossil Gal\u00e1pagos corals. 83% of the Ba\/Ca records analyzed demonstrate no annual covariance with these physiological parameters, linked to coral calcification rate. However, mean Ba\/Ca ratios are typically reduced in faster growing records, consistent with the Rayleigh fractionation model of element partitioning. Similarly, annual Ba\/Ca values in one record correlate inversely with extension, driving periodic offsets from an overlapping record. These results indicate that Ba\/Ca records should be screened for physiological artefacts ahead of their application.\n\nAltogether, this dissertation provides a robust assessment of coral geochemical proxies and their utility in reconstructing oceanographic conditions in the EEP. Whereas temperature-sensitive tracers can demonstrably be leveraged to reconstruct the variance and asymmetry of historical ENSO, upwelling proxies are best paired with regional circulation data for faithful interpretation.", "occurrence_notes":null, "guid":"148099-21902946@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/148099", "building_id":"1000188", "building_name":"1100 North University Building", "campus_maps_id":"628", "room":"2540", "location_name":"1100 North University Building", "has_livestream":0, "cost":"", "tags":["Dissertation","Earth And Environmental Sciences"], "website":"", "sponsors":[ { "group_name":"Earth and Environmental Sciences", "group_id":"3170", "website":"http:\/\/www.lsa.umich.edu\/earth" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/05\/event_148099_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/05\/event_148099_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21902946 } }