Migakazuba Researchers

National/

Public Universities

Associate

Professor

Assistant

Professor

Associate

Professor

Assistant

Professor

Keywords：Radio, Children, Storytelling, Nationalism, Education

My research interest is the history of children's programs in Japan during the early days of radio (1925–1945). The subjects are broadcast storytelling and publicity of the programs. This project examines how children's programs and public relations changed as radio contributed to Japan's war effort. I am deeply interested in how adults facilitate children.

Keywords：Environmental Policy and Social Systems, Sustainability, Collaborative Governance

I have researched the creation process of regional social innovation, targeting on local cities in Japan, which are thought to be particularly affected by rapidly declining birthrate and aging population. Especially, in the Ph.D. dissertation, I examined how various organizations and people (actors) interacted with each other to start and develop related activities in the process of creating social innovation from the analytical framework of "collaborative governance", and showed some important conditions under which social innovation may be created. In this fiscal year, I will try to deepen my research from the perspective of “knowledge integration” in a collaborative community.

Keywords：coral, larvae, micro swimmer, gravitaxis, settlement, disperse

Adult corals that live a sedentary life on the sea floor have a larval stage that floats in the ocean for several weeks after fertilization. The larvae move using lots of cilia that cover their bodies, aided by their swimming abilities and ocean currents. Once they reach a suitable site on the sea floor, they settle down, metamorphose into polyps, and grow into adult corals through division. During their larval stage, I am interested in how the larvae recognize vertical direction and are able to move directly between the water surface and the seabed.

Keywords：neologism, internet slang, young people’s language, Twitter

I’m interested in Internet slang and young people's language in modern Japanese.
I have been studying neologism forms (“New Usage of Words with a Suffix -Mi”) such as “tsurami” and “nemumi”, which are often used on Twitter (now X).
Internet slang and youth language are often said to be misused or deviant expressions.
However, I would like to discover trends in modern Japanese expressions by studying why such expressions came into use and what functions they have, rather than ignoring them as misuse.

Keywords：Polysemous Verbs、Unknown Subordinate Senses、Lexical Inferencing

Previous studies have demonstrated that the accuracy of inferring unknown subordinate senses of polysemous verbs is influenced by three factors: (1) learners' L2 proficiency, (2) semantic overlap to core senses, and (3) context richness. However, detailed analysis of the inference processes among Chinese-speaking learners of Japanese (CJL) revealed an additional influential factor - "graphic-semantic correspondence with L1 translations" - which significantly affects inference accuracy. These findings necessitate a re-examination of lexical influence on inference accuracy through two distinct dimensions: (i) language-internal factors (semantic overlap to core meanings) and (ii) cross-linguistic factors (character correspondence between L1 and L2).

Keywords：Knot, Knot theory, Braid 

In knot theory, we study knots or braids, which are knotted circles or strings. My research interest is to study knots and braids diagrammatically and combinatorially by looking at the behavior of diagrams. I study a matrix these days that is obtained from a diagram of a braid to find some effective invariants of knots and braids.

Keywords：Sports, Gender, Sports policy, Child-rearing generation

The low participation rate of Japanese women in sports is a significant issue. I want to delve into the reality of this situation. The FY2024 "Public Opinion Survey on Sports Participation Status" shows particularly low participation rates among women in their 30s and 40s, who are part of the working and child-rearing generations. We will conduct questionnaire surveys, fieldwork investigations, and even analyze social media communications. I aim to clarify the current state of this generation.