Or Rappel-Kroyzer's Homepage



BA, Mathematics, Computer Science and Jewish Philosophy, the Hebrew University of Jerusalem, Magna Cum Laude (2005)

BA, History, the Open University, Magna cum Laude (2012; mostly through Junior High School, High School and Military service years)

MA, History, Tel Aviv University, Magna cum Laude (2019)

PhD Candidate, American Hisotory, Tel Aviv University (supervisor: Dr. Yael Sternhell)

Academic Positions

Hebrew University, the Center for Interdisciplinary Data Research, Chief Scientist, 2022-Current

Tel-Aviv University, The Center for Study of the United States in cooperation with the Fullbright program, Research Fellow, 2018-2022

Digital Humanities Consultant, 2020-Current

  • Technical lead of the Alma website, mapping Jewish sites of antiquity
  • Techincal advisor to the Sepharadic Rabbis in Israel Mapping Project by Prof. Zvi Zohar, Bar-Ilan University


Peer-reviewed Journal Articles

Sommer, Udi and Rappel-Kroyzer, Or, 2022, “Pandemic Politics in the USA: COVID-19 as a New Type of Political Emergency”, Political Psychology 43(4) 769-792, DOI: 10.1111/pops.12792

Sommer, Udi and Rappel-Kroyzer, Or, 2021, “Online Coverage of the COVID-19 Outbreak in Anglo-American Democracies: Internet News Coverage and Pandemic Politics in the USA, Canada and New Zealand” Journal of Information Technology & Politics 19(4), 393-410, DOI: 10.1080/19331681.2021.1997869

Books, Papers and Conference Papers under Review

Rappel-Kroyzer, Or and Sommer, Udi, Political Behavior in the Age of COVID-19, book proposal under review

Sommer, Udi and Rappel-Kroyzer, Or “COVID-19 and the 2020 Presidential Elections: A Stress Test for Theories of Voting Behavior”, under review

Zohar, Zvi; Rappel-Kroyzer, Or; Marmor, Yanir “Digital analysis on the Halachic literature of Sepharadic Ultra-Orthodox Rabbis educated in Israel”, The International Congress for Judaic Studies, under review.

Sommer, Udi and Rappel-Kroyzer, Or, “The political Nature of the Gender Gap in COVID-19 Vaccinations”, under review

Sommer, Udi and Rappel-Kroyzer, Or, “Political Epidemiology: Quantifying Simultaneity between Political Behavior and Pandemics”, under review

Sommer, Udi and Rappel-Kroyzer, Or, “COVID-19 Vaccination as a Political Behavior: Political, Policy and Psychological Effects”, under review

Conference Papers


American Political Science Association Annual Meeting, “The Cumulative Impact of Elections on Affective Polarization” (with Udi Sommer, online)

Societa Italiana de Sienza Politica, “The Socio-political Nature of the Gender Gap in COVID-19 Vaccinations: An Ecological Analysis” (with Udi Sommer)

The 18th World Congress of Jewish Studies, “Computational Analysis of the Halachic Literature created by Sepharadi Rabbis in Israel, 1967-2020” (with Zvi Zohar and Yanir Marmor)

Midwest Political Science Association, “Deus Ex Machina: How COVID-19 Changed Mass Political Behavior from Lockdowns to Elections and Vaccines” (with Udi Sommer, online)

Broadening Our Approach: A Workshop on Comparative Political Communication, DeWitt Wallace Center for Media and Democracy, Duke University’s Sanford School of Public Policy, “A Paradigm Shift in the Understanding of Political Campaigns Based on NLP Tools” (with Udi Sommer)


American Political Science Association Annual Meeting, “Quantifying Polarization at Sub-State Levels: A Methodological and Substantive Framework using Election Outcome Shift (EOS)” (with Udi Sommer, online)


SolarPACES, ”Valuing Thermal Energy Storage in CSP Systems


Rabani, M; Ben-Hamo, M. Schwartz, M; Rosenberg-Biton, E; Shay, Y; Rappel-Kroyzer, O. Systems and Methods for Monitoring Lane Mark Quality. WO2022149046A1. Published July 14, 2022.

Bolless, E; Karavany, I; Neuhof, B; Rappel-Kroyzer, O; Shpigelman, S; Ben-Ami, H; Aviad, E, Systems and Methods for Determining Road Safety, WO 2021096935A2, published Jul 28, 2022

Rappel-Kroyzer, O; Raphael, A; Karavany, I; Kom, S; Chanovsky, A; Avidan, E and Bolless, E, Clustering Event Information for Vehicle Navigation. WO 2020154599. Published Jul 30, 2020.

Scholarships, Honors and Awards

Tel-Aviv University Center for Combatting Pandemics, PhD Grant 2022

Tel-Aviv University School of Hisotory, PhD Grant, 2022

Tel-Aviv University Center for Study of the United States excellence scholarship, 2018, 2019, 2020

Hebrew University’s Faculty of Science’ Amirim honors program, 2002-2005

Hebrew University’s Rector Prize, 2003

Hebrew University’s Faculty of Science’ Dean’s list, 2002

Open Universtity’s President honors, 2002

Open University’s Faculty of Humanities and Social Science’ Dean’s honors, 2001