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She argues that small-scale farms are vital for sustainable development due to their unique capacity to implement eco-friendly practices and maintain local food sovereignty, contrasting significantly with large-scale, corporate farming models. The research utilizes a mix of qualitative and quantitative methods to explore how different farm sizes affect agricultural sustainability across diverse geographies, including detailed case studies in Jamaica and Hawaii. 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We describe the time evolution of states that are perturbations of the Fermi ball, and analyze the dynamics in particle-hole variables. Our main result states that, for small values of the coupling constant and for appropriate initial data, the effective dynamics of the momentum distribution is determined to leading order by a discrete collision operator of quantum Boltzmann form.", "occurrence_notes":null, "guid":"131512-21868662@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/131512", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"4088", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics","Applied Mathematics"], "website":"", "sponsors":[ { "group_name":"Differential Equations Seminar - Department of Mathematics", "group_id":"4888", "website":"" }, { "group_name":"Department of Mathematics", "group_id":"3791", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21868662 } , "133824-21873599": { "datetime_modified":"20250415T162433", "datetime_start":"20250501T160000", "datetime_end":"20250501T172000", "has_end_time":1, "date_start":"2025-05-01", "date_end":"2025-05-01", "time_start":"16:00:00", "time_end":"17:20:00", "time_zone":"America\/Detroit", "event_title":"Double Robustness of Local Projections and Some Unpleasant VARithmetic", "occurrence_title":"", "combined_title":"Double Robustness of Local Projections and Some Unpleasant VARithmetic: Mikkel Plagborg-Moller, Princeton University", "event_subtitle":"Mikkel Plagborg-Moller, Princeton University", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"We consider impulse response inference in a locally misspecified vector autoregression (VAR) model. The conventional local projection (LP) confidence interval has correct coverage even when the misspecification is so large that it can be detected with probability approaching 1. This result follows from a \u201cdouble robustness\u201d property analogous to that of popular partially linear regression estimators. In contrast, the conventional VAR confidence interval with short-to-moderate lag length can severely undercover, even for misspecification that is small, economically plausible, and difficult to detect statistically. 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For all the billions of chemical experiments performed in human history, gravity has been largely treated as a physical constant. But with rapidly growing access to space, we now have the ability to treat gravity, one of the four fundamental forces of nature, as an experimental variable. Without gravity, we have the opportunity to study how chemical reactions behave without the influence of acceleration-dependent convection, hydrostatic pressure, flotation, sedimentation, or container interactions. \r\n\r\nBut as with any new field of study, the right tools are needed to understand and exercise its potential. \r\n\r\nThe idea of experimentation in microgravity is not new \u2013 the first US space station, Skylab (1973), hosted a series of chemistry experiments, some as fundamental as \u201cMetals Melting (M551)\u201c. Many of these findings highlight the incredible potential microgravity environments offer for scientific discovery. However, these experiments, and those taking place on the International Space Station today, are often performed in uncreative experimental setups and with equipment that was originally designed to operate on Earth. \r\n\r\nThis talk will outline previous investigations in microgravity, note their findings and critique their experimental design, and present Astral Materials\u2019 approach to inventing the right tools for Microgravity Chemistry to reach its full potential.", "occurrence_notes":null, "guid":"133450-21873114@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/133450", "building_id":"1000158", "building_name":"Chemistry Dow Lab", "campus_maps_id":"34", "room":"", "location_name":"Chemistry Dow Lab", "has_livestream":0, "cost":"", "tags":["Chemistry"], "website":"", "sponsors":[ { "group_name":"Department of Chemistry", "group_id":"3761", "website":"https:\/\/lsa.umich.edu\/chem" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21873114 } }