HARUKA SAKAI

Last Updated :2025/11/04

Affiliations, Positions
Graduate School of Humanities and Social Sciences, Assistant Professor
E-mail
hasakaihiroshima-u.ac.jp
Self-introduction
Based on perspectives from sociolinguistics and interaction analysis, I explore how co-presence is achieved through social interaction and how it shapes vernacular public space in a rural community. 

Basic Information

Major Professional Backgrounds

  • 2025/04/01, Hiroshima University, Graduate School of Humanities and Social Sciences, Assistant Professor
  • 2023/04, 2025/03, Toyo University, Department of International Culture and Communication Studies, Faculty of Letters, Adjunct Lecturer
  • 2023/04, 2025/03, Tokyo International University, Japanese Language Institute, Lecturer
  • 2024/09, 2024/09, The University of Shiga Prefecture, School of Human Cultures Department of Human Relations Studies, Adjunct Lecturer
  • 2022/10, 2023/03, University of Tsukuba, Faculty of Humanities and Social Sciences, Postdoctoral researcher

Educational Backgrounds

  • University of Tsukuba, Graduate School of Humanities and Social Sciences, Doctoral Program in Literature and Linguistics, Japan, 2017/04, 2022/09
  • University of Tsukuba, School of Humanities and Culture, College of Japanese Language and Culture, Japan, 2013/04, 2017/03

Academic Degrees

  • Doctor of linguistics, University of Tsukuba
  • Master of linguistics, University of Tsukuba

Research Fields

  • Humanities;Linguistics;Linguistics
  • Humanities;Cultural anthropology;Cultural anthropology
  • Social sciences;Sociology;Sociology

Research Keywords

  • Social Interaction
  • Rural Community
  • Small Talk

Affiliated Academic Societies

  • The Society for Japanese Language Proficiency and Education, 2024
  • International Pragmatics Association, 2024
  • Japan Association of Regional and Community Studies, 2023
  • Association for Japanese Language Education, 2022
  • Japanese Association of Qualitative Psychology, 2021
  • Japanese Teaching Society of Japan, 2019
  • The Japanese Association of Sociolinguistic Sciences., 2018

Educational Activity

Course in Charge

  1. 2025, Liberal Arts Education Program1, 1Term, Introductory Seminar for First-Year Students
  2. 2025, Liberal Arts Education Program1, 1Term, Introductory Seminar for First-Year Students
  3. 2025, Undergraduate Education, 1Term, Fundamentals of Teaching Japanese as a Second Language
  4. 2025, Undergraduate Education, 3Term, Project Workshop in Transcultural Education
  5. 2025, Undergraduate Education, First Semester, Pre-service Education in Japanese as a Second Language
  6. 2025, Undergraduate Education, First Semester, Specific Study of Japanese as a Second Language I
  7. 2025, Undergraduate Education, Second Semester, Specific Study of Japanese as a Second Language II
  8. 2025, Undergraduate Education, Second Semester, Graduation Thesis
  9. 2025, Undergraduate Education, 2Term, Introduction of Teaching Practice for Lower and Upper Secondary Schools
  10. 2025, Graduate Education (Master's Program) , 2Term, Advanced Studies in Multicultural Society
  11. 2025, Graduate Education (Master's Program) , 3Term, Seminar in Multicultural Society
  12. 2025, Graduate Education (Master's Program) , First Semester, Tutorial Seminar in Special Topics
  13. 2025, Graduate Education (Master's Program) , Second Semester, Tutorial Seminar in Special Topics

Research Activities

Academic Papers

  1. ★, Research Design Based on Understanding Activities in the Field:Video Recording Targeting Shopping Interaction in a Mobile Supermarket, The Japanese Journal of Language in Society, 28(1), 250-261, 202509
  2. Shaping Shouten 'Small Grocery Shop' as a Place of Hospitality: Third-Party Participation in Remedial Work Within Hearable Space (in press), East Asian Pragmatics, 2025
  3. Noda-Sentence in University Student Reports Based on Quantitative Research, Journal of Japanese Language Proficiency and Education, 202510
  4. Complex Sentence Use of CLD Children in Apology Discourse : Focusing on Grammatical Constraints in Organizing Discourse Structures, Journal of Japanese Language Proficiency and Education, 202510
  5. ★, Predictability of Encounter and Greeting Practices in Private Grocery Stores, Japanese Journal of Qualitative Psychology, 23(Special), S112-S118, 2024
  6. A Discourse Analytic Study of Conversations in Local Grocery Stores, Doctoral Dissertation in the Graduate School of Humanities and Social Sciences, University of Tsukuba, 202209
  7. ★, Language Use of a Salesclerk and Regular Customers in a Neighborhood Grocery Store: Focusing on Small Talk Following Greetings, The Japanese Journal of Language in Society, 25(1), 166-181, 202209
  8. Online Casual Conversations among University Students in the Early Days of the Pandemic: The Emergence of Bonding through Interaction, The Japanese Journal of Language in Society, 25(1), 102-117, 202209
  9. The Potential of Language Use Analysis in Sports Coaching: Focusing on "Tempo" and "Rhythm" in Football (Soccer), Japanese Journal of Qualitative Psychology, 20(Special), S97-S104, 2021
  10. Problems of students' reports focused on sentence-final modality forms: A corpus-based study of their actual use, kokugokakyouiku, 88(0), 21-29, 202009
  11. A Corpus Study into the Repetitive Use of Adversative Conjunctions, 139-159, 201703

Publications such as books

  1. 2023/12/14, Navigating Friendships in Interaction: Discursive and Ethnographic Perspectives, Routledge, 2023, 2023, Scholarly Book, Contributor, en, Cade Bushnell; Stephen J. Moody, 9781003381426, 280

Invited Lecture, Oral Presentation, Poster Presentation

  1. Growing Students into Kanji Writers: Interaction in Online Japanese Lessons for Japanese as a Second Language (JSL) Children, Haruka Sakai, 19th International Pragmatics Conference, 2025/06/23, Without Invitation, English, International Pragmatics Association, Brisbane, Australia
  2. Interaction between the Rural Elderly at a Mobile Supermarket: The Organization of Co-presence during Examining Items, Haruka Sakai Rui Sakaida, 2024/09/10
  3. Extending Closings Through See-off Practices in Face-to-Face Apparel Service Encounter, Haruka Sakai, 2024/02/29
  4. The Function of "Background" in Online Casual Conversation: An Interactional Analysis of the Construction of Shared "Space", Haruka Sakai; Ayumi Inouchi, Technical Committee on Human Communication Science (HCS) , The Institute of Electronics, Information and Communication Engineers (IEICE), 2020/08/22

Awards

  1. 2023/03, Best Dissertation Award, Graduate School of Humanities and Social Sciences, University of Tsukuba
  2. 2022/03, Presentation Award, The Japanese Association of Sociolinguistic Sciences

External Funds

Acceptance Results of Competitive Funds

  1. PRESTO, JST Strategic Basic Research Programs, Creating Human-Centered Interaction to Solve Social Issues, Exploring Everyday Interactional Support for Older Adults, 2025/10, 2029/03
  2. Grants-in-Aid for Scientific Research, A Systematic Study of Mobile Supermarket Communication: Linguistic Structure, Interaction, and Social Relationships, 2025/04, 2029/03
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  3. Grants-in-Aid for Scientific Research, 2022/06, 2027/03
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  4. 2022/04/01, 2026/03/31
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  5. 2023/04, 2024/03
  6. 2021/10, 2022/03