{ "149694-21906960": { "datetime_modified":"20260825T082058", "datetime_start":"20261026T153000", "datetime_end":"20261026T170000", "has_end_time":1, "date_start":"2026-10-26", "date_end":"2026-10-26", "time_start":"15:30:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"RCGD Fall Seminar Series: Global Perspectives on Culture and Health (Lindsay Kobayashi)", "occurrence_title":"", "combined_title":"RCGD Fall Seminar Series: Global Perspectives on Culture and Health (Lindsay Kobayashi): How Culture Shapes the Measurement of Cognitive Aging: Lessons from the HCAP International Network", "event_subtitle":"How Culture Shapes the Measurement of Cognitive Aging: Lessons from the HCAP International Network", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"RCGD Fall 2026 Seminar Series: Global Perspectives on Culture & Health, meets Mondays 3:30 to 5 at ISR Thompson 6050.\n\nGlobal Perspectives on Culture and Health explores fundamental aspects of human life. Culture facilitates human interaction by providing meaning to lived experience. Accounting for culture in both theories and methods potentially advances the study of health by connecting the macro and micro levels of human experience. Yet, culture should be understood as dynamic and complex. It fundamentally shapes individuals and simultaneously is shaped by individuals. The importance of systematically attending to culture includes topics of values, language, immigration, and society.\n\nTheories and methods that incorporate culture hold great potential for advancing the understanding of health outcomes and health trajectories in various global contexts.\n\nThe speakers for this series will focus on various aspects of culture and diverse groups living in the U.S. and across the globe to address the ways in which attending to culture helps clarify and overcome challenges to good health.\n\nThe Group Dynamics Seminar series is considered one of the longest running seminar series in the social sciences. It has been running uninterruptedly since it was founded by Kurt Lewin in the 1920\u2019s in Berlin. The seminar series runs every semester on a theme chosen by faculty organizer\/s who are affiliated with the Research Center for Group Dynamics at the Institute for Social Research. A very important feature of this seminar today is its interdisciplinary nature. Recent themes have included political polarization, evolution and human behavior, and cultural psychology.\n\nIn person: ISR Thompson 6050, unless otherwise specified.\nOrganized by Kristine Ajrouch and Sela Panapasa\nEvents are not recorded", "occurrence_notes":null, "guid":"149694-21906960@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/149694", "building_id":"1000145", "building_name":"Institute For Social Research", "campus_maps_id":"76", "room":"6050", "location_name":"Institute For Social Research", "has_livestream":0, "cost":"", "tags":["Research","Social Science","Culture","Social Science Research"], "website":"", "sponsors":[ { "group_name":"Research Center for Group Dynamics (RCGD)", "group_id":"4836", "website":"https:\/\/rcgd.isr.umich.edu\/" }, { "group_name":"Institute for Social Research", "group_id":"3285", "website":"http:\/\/isr.umich.edu" }, { "group_name":"Survey Research Center", "group_id":"5063", "website":"https:\/\/src.isr.umich.edu\/" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/08\/event_149694_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/08\/event_149694_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/08\/event_149694_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/08\/event_149694_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/08\/event_149694_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/08\/event_149694_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/08\/event_149694_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/08\/event_149694_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/08\/event_149694_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/08\/event_149694_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/08\/event_149694_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/08\/event_149694_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/08\/event_149694_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/08\/event_149694_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/08\/event_149694_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/08\/event_149694_original-1.png" }, "occurrence_count":1, "first_occurrence":21906960 } , "153265-21915550": { "datetime_modified":"20261016T084700", "datetime_start":"20261026T160000", "datetime_end":"20261026T180000", "has_end_time":1, "date_start":"2026-10-26", "date_end":"2026-10-26", "time_start":"16:00:00", "time_end":"18:00:00", "time_zone":"America\/Detroit", "event_title":"2026 David Noel Freedman Lecture", "occurrence_title":"", "combined_title":"2026 David Noel Freedman Lecture: One Goat, Two Piglets, and Heaps of Grain \u2013 Banking with Barley in Late Bronze Age Babylonia", "event_subtitle":"One Goat, Two Piglets, and Heaps of Grain \u2013 Banking with Barley in Late Bronze Age Babylonia", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"Please join us for the 2026 David Noel Freedman Lecture with Dr. Susanne Paulus, Associate Professor of Assyriology and Curator of the Tablet Collection at the Institute for the Study of Ancient Cultures (ISAC) at the University of Chicago.\n\nMichigan League, Vandenberg Room, 2nd Floor\nMonday, October 26th, 4 - 6pm\n\nAbstract:\n\nWriting history is telling stories. The stories we tell about ancient economies, including that of Late Bronze Age Babylonia, are often shaped by preconceptions about commodities, credit, and debt. Drawing on tablets excavated in cities such as Babylon, Nippur, and Ur in modern Iraq, this lecture follows barley through a series of transactions involving taxes, loans, investments, and even two piglets. Barley was both a major food source and an economic staple, but the documents reveal much more than subsistence. They offer alternative ways of understanding credit, debt, and investment in Late Bronze Age Babylonia.\n \nBiography:\n\nSusanne Paulus is an Associate Professor of Assyriology and Curator of the Tablet Collection at the Institute for the Study of Ancient Cultures (ISAC) at the University of Chicago. Her research focuses on the social, legal, and economic history of Late Bronze Age Babylonia. Her current book project, Banking with Barley, supported by the American Council of Learned Societies, explores credit, debt, and economic life in Kassite Babylonia. She is also an epigraphist for the Nippur excavations and is involved in the publication of cuneiform texts from the city of Babylon.", "occurrence_notes":null, "guid":"153265-21915550@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/153265", "building_id":"1000191", "building_name":"Michigan League", "campus_maps_id":"108", "room":"Vandenberg Room (2nd Floor)", "location_name":"Michigan League", "has_livestream":0, "cost":"", "tags":["Babylonia","Middle East Studies","Lecture","Bronze Age"], "website":"https:\/\/www.instagram.com\/umichmes\/", "sponsors":[ { "group_name":"Department of Middle East Studies", "group_id":"1927", "website":"https:\/\/lsa.umich.edu\/middleeast" }, { "group_name":"Archaeology at Michigan", "group_id":"5160", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/10\/event_153265_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/10\/event_153265_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21915550 } , "150985-21910668": { "datetime_modified":"20261019T172127", "datetime_start":"20261026T160000", "datetime_end":"20261026T170000", "has_end_time":1, "date_start":"2026-10-26", "date_end":"2026-10-26", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"BSI Information Sessions- Current U of M Students", "occurrence_title":"BSI Information Sessions- Current UM Students F26#6", "combined_title":"BSI Information Sessions- Current U of M Students: BSI Information Sessions- Current UM Students F26#6", "event_subtitle":"", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"We encourage every student interested in or contemplating an undergraduate degree at the School of Information to attend an information session. You will receive an engaging and comprehensive overview of the program, as well as guidance for the application process. Sessions are hosted on different days and times to accommodate as many students as possible, and you only need to attend one session before you apply.These information sessions are for students who area currently University of Michigan students.", "occurrence_notes":null, "guid":"150985-21910668@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/150985", "building_id":"", "building_name":"", "campus_maps_id":"", "room":"", "location_name":"Virtual", "has_livestream":0, "cost":"", "tags":["Sessions"], "website":"https:\/\/sessions.studentlife.umich.edu\/p\/track\/17724", "sponsors":[ { "group_name":"Sessions @ Michigan", "group_id":"4791", "website":"https:\/\/sessions.studentlife.umich.edu\/" } ], "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":4, "first_occurrence":21910668 } , "149331-21906240": { "datetime_modified":"20261012T112125", "datetime_start":"20261026T160000", "datetime_end":"20261026T172000", "has_end_time":1, "date_start":"2026-10-26", "date_end":"2026-10-26", "time_start":"16:00:00", "time_end":"17:20:00", "time_zone":"America\/Detroit", "event_title":"Consumption, Savings, and Earnings Responses to Financial Windfalls (joint with Rajashri Chakrabarti, Philippe d\u2019Astous, Sheisha Kulkarni, Vyacheslav Mikhed, Matthew J. Notowidigdo, Sahil Raina and Barry Scholnick)", "occurrence_title":"", "combined_title":"Consumption, Savings, and Earnings Responses to Financial Windfalls (joint with Rajashri Chakrabarti, Philippe d\u2019Astous, Sheisha Kulkarni, Vyacheslav Mikhed, Matthew J. Notowidigdo, Sahil Raina and Barry Scholnick): Kory Kroft, University of Toronto", "event_subtitle":"Kory Kroft, University of Toronto", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"We estimate the causal effects of a financial windfall on consumption, savings, and wage earnings using linked administrative data on a large sample of Canadian lottery winners. Using separate linkages of lottery winners to income tax records and credit bureau data, we estimate how lottery winnings affect consumption measured through credit card spending, savings through financial asset accumulation and debt repayment, and wage earnings from tax records. We then examine how these responses vary across the income distribution. We find that high-income individuals allocated a larger share of lottery winnings to savings and leisure, while low-income individuals spent a larger share on consumption. We illustrate the policy relevance of these heterogeneous responses through three applications: designing fiscal stimulus programs, evaluating a Universal Basic Income (UBI), and determining optimal top tax rates on wage earnings and savings.", "occurrence_notes":"For those not familiar with the academic and residential towers of North Quad, please refer to this link for wayfindng guidance: https:\/\/lsa.umich.edu\/content\/dam\/econ-assets\/Econdocs\/NQ%20Econ%20Department%20Directions.pdf", "guid":"149331-21906240@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/149331", "building_id":"1005177", "building_name":"North Quad", "campus_maps_id":"553", "room":"4325", "location_name":"North Quad", "has_livestream":0, "cost":"", "tags":["Economics","seminar","Public Finance"], "website":"http:\/\/www.lsa.umich.edu\/econ", "sponsors":[ { "group_name":"Department of Economics", "group_id":"3302", "website":"http:\/\/www.lsa.umich.edu\/econ" }, { "group_name":"Public Finance", "group_id":"3553", "website":"" }, { "group_name":"Department of Economics Seminars", "group_id":"3566", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/07\/event_149331_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2026\/07\/event_149331_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/07\/event_149331_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/07\/event_149331_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/07\/event_149331_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2026\/07\/event_149331_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2026\/07\/event_149331_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2026\/07\/event_149331_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2026\/07\/event_149331_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2026\/07\/event_149331_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2026\/07\/event_149331_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/07\/event_149331_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/07\/event_149331_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2026\/07\/event_149331_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_feature_large\/media\/attachments\/2026\/07\/event_149331_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/07\/event_149331_original-1.png" }, "occurrence_count":1, "first_occurrence":21906240 } , "152182-21913184": { "datetime_modified":"20261010T063705", "datetime_start":"20261026T160000", "datetime_end":"20261026T170000", "has_end_time":1, "date_start":"2026-10-26", "date_end":"2026-10-26", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Dynamics seminar", "occurrence_title":"", "combined_title":"Dynamics seminar: Arya Vadnere, University of Buffalo", "event_subtitle":"Arya Vadnere, University of Buffalo", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"TBA", "occurrence_notes":null, "guid":"152182-21913184@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/152182", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"3096", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Dynamics"], "website":"", "sponsors":[ { "group_name":"Complex Analysis, Dynamics and Geometry Seminar - Department of Mathematics", "group_id":"4887", "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":21913184 } , "153219-21915436": { "datetime_modified":"20261017T105456", "datetime_start":"20261026T160000", "datetime_end":"20261026T170000", "has_end_time":1, "date_start":"2026-10-26", "date_end":"2026-10-26", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"GLNT: Analytic approaches to factorization of singular moduli", "occurrence_title":"", "combined_title":"GLNT: Analytic approaches to factorization of singular moduli: Yingkun Li (Wisconsin)", "event_subtitle":"Yingkun Li (Wisconsin)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Abstract: In the 1980s, Gross and Zagier proved factorization formula for norm of difference of singular moduli, on their way to the Gross-Zagier formula. In that work, there were two approaches, one algebraic and one analytic. It turns out that the algebraic approach could produce factorization before taking the norm, whereas the analytic approach could not. In this talk, I will report on-going work with Mike Daas, where we aim to remove the norm through a p-adic analytic approach in the case of Shimura curves.", "occurrence_notes":null, "guid":"153219-21915436@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/153219", "building_id":"1000166", "building_name":"East Hall", "campus_maps_id":"53", "room":"4088", "location_name":"East Hall", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Group, Lie and Number Theory Seminar - Department of Mathematics", "group_id":"4892", "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":21915436 } , "153062-21915026": { "datetime_modified":"20260929T150501", "datetime_start":"20261026T160000", "datetime_end":"20261026T170000", "has_end_time":1, "date_start":"2026-10-26", "date_end":"2026-10-26", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Long time asymptotics of the generalized soliton gas for the mKdV equation", "occurrence_title":"", "combined_title":"Long time asymptotics of the generalized soliton gas for the mKdV equation: Manuela Girotti (Emory University)", "event_subtitle":"Manuela Girotti (Emory University)", "event_type":"Livestream \/ Virtual", "event_type_id":"24", "description":"We analyze a new class of solutions of the modified KdV equation introduced by Dyachenko, Zakharov, and Zakharov, and which can be interpreted as a soliton gas. These solutions are characterized by a Riemann-Hilbert problem which arises as the limit $N\\to \\infty$ of a sequence of $2N$-soliton RH problems, where the solitons display two different triangularity in the jumps. The limiting RH problem belongs to a novel class of problems, where the jump matrices do not have any zero entry (as opposed to the classical upper\/lower triangular setting).\n We show that the initial profile of such a gas solution is approaching a cnoidal wave solution for $x\\to \\pm \\infty$ with different phase shifts, and we establish an asymptotic description of the gas of solitons for large times that is valid over the entire spatial domain, in terms of Jacobi elliptic functions, with slowly modulated phase shifts as time varies from $-\\infty$ to $+\\infty$.\nThis is a joint work with Ken McLaughlin (Tulane U.) and Robert Jenkins (UCF).\n\n*To request access to the Zoom room, please contact Nathan Hayford at nhayford [ at ] umich.edu.*", "occurrence_notes":null, "guid":"153062-21915026@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/153062", "building_id":"null", "building_name":"Off Campus Location", "campus_maps_id":"1", "room":"", "location_name":"Virtual", "has_livestream":0, "cost":"", "tags":["Mathematics"], "website":"", "sponsors":[ { "group_name":"Integrable Systems and Random Matrix Theory Seminar - Department of Mathematics", "group_id":"4893", "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":21915026 } }