KOSEN

Department of Integrated Arts and Science
National Institute of Technology, Okinawa College

National Institute of Technology

Study on rings with Morita duality
NameKoike Kazutoshi

StatusProfessor

E-mailkoike@okinawa-ct.ac.jp

Affiliations

Mathematical Society of Japan, Information Processing Society ofJapan

Keywords

Noncommutative rings, Morita duality, quasi-Frobenius rings

TechnicalSupport Skills

Research Contents

・Theory of algebra (ring theory)

・Public lectures on mathematics

Study on rings with Morita duality

I have been studying noncommutative ring theory. Recently I am interested in rings with Morita duality(self-duality). “Morita duality” is a duality (contravariant category equivalence) between certain categoriesof left R-modules and right S-modules, where R and S are two associative rings with identity. Most
typical example of Morita duality is the usual vector space duality of finite dimensional vector spaces over afield. In case R=S such as the vector space duality, Morita duality is called “self-duality”. I study theproblem whether certain kind of rings have self-duality.

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Department of Integrated Arts and Science
Okinawa National College of TechnologyKOSEN
National Institute of Technology

On global properties of solutions to theEinstein equations
Name

NARITA Makoto

StatusProfessor

Affiliations
Keywords
TechnicalSupport Skills
Research Contents

E-mailnarita@okinawa-ct.ac.jp

Mathematical Society of Japan, Japan Physical Society,
International Society on General Relativity and Gravitation
Gravity, Singularity, Black Hole, Cosmic Censorship, General Relativity,
Nonlinear Partial Differential Equations
・ Theoretical calculations based on Physics (relativity)
・ Public lectures on physics and mathematics

On global properties of solutions to the Einstein equations

General relativity and partial differential equations— Global solutions to the Einstein equations— Initial singularity of the universe— Formation of black holes

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KOSEN

Department of Integrated Arts and Science
National Institute of Technology, Okinawa College

National Institute of Technology

A Study of William Blake
Translation of Ó Searcaigh’s works into Japanese
Name

Eriko HOSHINO

StatusProfessor

Affiliations
Keywords

E-mailhoshino@okinawa-ct.ac.jp

Japan Ireland Society
Yeats Society of Japan

William Blake, Cathal Ó Searcaigh, William Butler Yeats, Irish Language,
Gnosticism

TechnicalSupport Skills

Research Contents
Field of Study
1) Gnostic influence upon William Blake’s poetry2) A fundamental difference between William Blake and W. B. Yeats3) A study of Cathal Ó Searcaigh and translation his works into Japanese
Recent Research Results
・Where has Blake’s ‘The Sick Rose’ Gone?
(Annual Conference of Yeats Society of Japan, 2014)
・A Study of Cathal Ó Searcaigh---Writing Poems in Irish--(Bulletin of Musashino Academia Musicae, 2012)
・Dreadful Contraries---Re-reading William Blake’s ‘The Mental Traveller’--(Annual Conference of Yeats Society of Japan, 2012)
・Modern Irish Poetry: Máirtín Ó Direáin, Seán Ó Ríodáin, Nuala Ni Dhomhnaill and Cathal Ó Searcaigh(Symposium, Annual Conference of Irish Studies, 2011, Japan Ireland Society)

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KOSEN

Department of Integrated Arts and Science
National Institute of Technology, Okinawa College

National Institute of Technology

Philosophical study of “self-awareness”
Name

AOKIKumi

E-mailaoki@okinawa-ct.ac.jp

Statusassociate professor
Japan Society for Buddhist-Christian Studies.
Affiliations
Japanese Association for Comparative Philosophy
Keywords
TechnicalSupport Skills

emptiness, dependent-arising, basho
・Buddhist study
・Narrative Therapy

Research Contents
I have been studying Buddhist concept of emptiness and dependent-arising from the perspective of comparative
philosophy, and thus considering what self is and how its relationship with others should be. The comparative study
coves the logic of basho (Kitaro Nishida), Hegelian dialectic, phenomenology (Husserl), Nihilism (Nietzsche), language
game (Wittgenstein), deconstruction (Derrida) and integral philosophy (Wilber)

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KOSEN

Department of Integrated Arts and Science
National Institute of Technology, Okinawa College

National Institute of Technology(1) The situations of modern performing arts in Japan(2) The relation between culture and society
NameSAWAI

Manami

Status

Associate Professor

E-mailsawai@okinawa-ct.ac.jp

Affiliations

Japanese Society for Theater Research
The Japanese Society for History of the Performing Arts Research

Keywords

theater, performing arts, Japan, modern era , culture and society
extramural] lecture

TechnicalSupport Skills

Research Contents

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所属：
研究タイトル：

氏名：／

職名：

E-mail：学位：

所属学会・協会：
キーワード：
技術相談
提供可能技術：・・・

研究内容：

提供可能な設備・機器：
名称・型番（メーカー）

KOSEN

Department of Integrated Arts and Science,
National Institute of Technology, Okinawa College

National Institute of Technology

Name

Hiroshi Yamamoto

Status

Associate Professor

E-mailyamamoto@okinawa-ct.ac.jp

Affiliations

The Mathematical Society of Japan

Keywords

Riemann Surface, Teichmüller SpaceTechnical
Support Skills

・ Riemann Surface
・ Teichmüller Space

Research Contents

A compact Riemann surface of genus 2.

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KOSEN

Department of Integrated Arts and Science
National Institute of Technology, Okinawa

National Institute of Technology

Determinacy of Infinite Game in Second Order
Arithmetic
NameKeisuke Yoshii

StatusSenior Assistant Professor

E-mailkyoshii@okinawa-ct.ac.jp

Affiliations

Mathematical Society of Japan

Keywords

Foundation of Mathematics, Determinacy of infinite Games

TechnicalSupport Skills

・Open lectures

Research Contents
The main theme of my research is to reveal some properties of sets of reals by using determinacy of infinite
games. The infinite game is a perfect information game played by two players and called Gale-Stewart
games.
Unlike games of Chess or Go, this is a mathematical game, and the goal is not to defeat the opponent
players.
It is known that if there is a winning strategy for this game then sets of reals with certain complexity are
constructed by using the winning strategy. Formalizing this game in second order arithmetic, we can seethat the complexity of constructed sets is much more complicated that the complexity of games. In myresearch, we try to analyze the properties of sets constructed by winning strategies of infinite games, suchas properties of Baire, perfect sets, and so forth.
In education, I believe that a mathematical way of thinking, such as making the complicated simple, is
important for students.
I also have a strong passion for education. It is my dream to contribute the education of Okinawa andJapan.
To achieve this goal, I would like to keep learning how the education should be for Japanese industry.

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KOSEN

Department of Integrated Arts and Science,
National Institute of Technology, Okinawa College

National Institute of Technology

Construction of Constant Mean Curvature Surfaces via
Integrable System Methods, and their Singularities
NameYuta Ogata

StatusSenior assistant professor

AffiliationsKeywords
TechnicalSupport Skills

E-maily.ogata@okinawa-ct.ac.jp

Mathematical Society of Japan

Surface theory, Integrable system, Singularity theory
・ Public lectures on mathematics

Research Contents
I am interested in “constant mean curvature (CMC) surfaces”. CMC surfaces are well-known as themathematical model of soap bubbles and have been studied by many researchers for a long time. Recently I
study the construction of CMC surfaces in various spaceforms and analyze their singularities.
[My Research Keywords]
・Surface theory:
CMC surface, Spacelike CMC surface, Riemannian spaceforms, semi-Riemannian speceforms
・Integrable system:
DPW method, Loop group, Lax system, Liouville equation, sinh-Gordon equation, cosh-Gordon equation
・Singularity theory:
Wave front, Frontal

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KOSEN

Department of Integrated Arts and Science,
National Institute of Technology, Okinawa College

National Institute of Technology

A Grammar of Motobu, Kunigami, Ryukyuan
Name

Masashi SAKIHARA

StatusSenior Assistant Professor (Koshi)

Affiliations

Keywords
TechnicalSupport Skills
Research Contents

E-mailmashi_s@okinawa-ct.ac.jp

Okinawa Center of Language Study, Studies of the Society andCulture in Ryukyu and Asia, Circle of Studies of Yambaru, Foreign
Language and Literature Society of Okinawa, The Society ofJapanese Grammar, The Society of Japanese Linguistics,
Okinankyo (present: Chura Shima Kikoe Shien Kyokai)

Descriptive Grammar (Phonology, Morphology, Syntax), Ryukyuan & Japanese
Linguistics, Endangered Languages
・ Teaching Uchinaaguchi (Okinawan language) to Children
・ Teaching How To Document a Language
・ Teaching about Ryukyuan/Okinawan Languages in English

Field-work based Description and Documentation on Ryukyuan Languages【Ongoing Research (Renewed)】
Currently, I have been doing research on languages spoken in Town of Mobotu, which (the languages)
belong to Kunigami, Ryukyuan. Languages spoken in Yamazato and Gushiken are under research now.
【How I Came to Do Research on This Topic】
I chose this field of language documentation of Ryukyuan languages for my research because I realized
my strong identity as an Okinawan through study abroad experiences in Mainland U.S., Hawai'i, and inKorea. I have always been interested in language learning. Through mandatory English education atschools as a start, I also became interested in other languages such as Korean. My life in Korea has
strengthened my identity as an Okinawan, and after I came back from Korea I started doing my research on
Okinawan language documentation.
【Research Background】
Seven endangered languages are now recognized within the Ryukyu island chain: Amami, Kunigami,
Okinawa, Miyako, Yaeyama, Yonaguni, and Hachijo spoken on the Daito Islands. Shimakutuba is used as
the umbrella term to describe those seven languages (Ryukyuan Languages is used to describe the first six).
The majority of native speakers are over 80 years old and all of them are bilingual with Japanese. To
complicate matters more, the language domain where it is actually spoken is very limited to specificsituations such as when talking with a very close friend who is from the same community. The influence ofJapanese to Ryukyuan languages has caused the loss of traditional speech or grammatical expressions.
Despite the struggle of Okinawa Prefecture as well as that of privateorganizations and activists to revitalize Ryukyuan, there is not muchof an impact or change to the preservation of Shimakutuba. Ryukyuan
linguists who are well aware of this fact have been working on language
documention on each local language ranging from Amami to Yonaguni.
【Past Research: Master's thesis and PhD dissertation】
Rikka, Uchinaa-nkai! Okinawan
Targeting the variety spoken in Shuri, located in the northeast oflanguage for beginners
present Naha City, I did field work there multiple times and illustrated(Sakihara, M., Karimata, S., et

the grammatical chracteristics of sentence final particles and modality.
al., 2012)【Other Related Activities】
Translating works into Ryukyuan, Teaching children Uchinaaguchi, Reading Uchinaaguchi picture
books to children, Editing an Uchinaaguchi textbook written in English (see picture above).
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所属： 沖縄工業高等専門学校 総合科学科研究タイトル：

コーチング
氏名：

島尻 真理子 ／ SHIMAJIRI Mariko

E-mail：shimari5@okinawa-ct.ac.jp

職名：

講師

学位：

修士（スポーツ学）

所属学会・協会：

日本ハンドボール学会

キーワード：

スポーツ科学、コーチング、ハンドボール

技術相談
提供可能技術：・ハンドボール・コーチング
・レフェリング

研究内容：〈１〉
走・跳・投の基礎運動能力を必要とするハンドボール競技では、相手より１点でも多く点を取ることが求められる。
この点を取るという「成功」を得るために、チームは、日々の体力・技術・戦術等のトレーニングが必要不可欠である。
その中でも、実際に点を取るための戦術ならびにその指導方法に着目し、チーム状況やゲーム状況に応じた戦術の体系化や合理的な指導方法の研究を行い、ハンドボール競技の指導における一助とする。
〈２〉
スポーツにおける競技力向上には、「強化」はもちろん、その裾野を拡げるための「育成」が求められる。
これに加え近年では、そのゲームを公正・的確にジャッジすることが求められる「レフェリー」の存在も、注目されている。
ハンドボールにおいても過言ではなく、プレーヤー強化および指導とレフェリー強化が両輪となり、世界と戦うためのチームを目指している。
しかし、レフェリーに関する研究は進んでいないのが現状である。
そこで、レフェリーがゲームに及ぼす影響、レフェリングの実際の研究を行うことで、最終的にレフェリーの育成システムの構築を目指す。

提供可能な設備・機器：
名称・型番（メーカー）

KOSEN

Department of Integrated Arts and Science
National Institute of Technology, Okinawa

National Institute of Technology

Coaching
Name

Mariko Shimajiri

StatusSenior Assistant Professor

E-mailshimari5@okinawa-ct.ac.jp

Affiliations

The Japanese Association of Handball Research

Keywords

Sports science, Coaching, Handball

Technical
Support Skills

・ Handball・ Coaching・ Refereeing

Research Contents〈１〉
In the handball that needs the basic motor ability of running, jumping and throwing, it is important to scoremore points even at one point than the opponent team.
In order to obtain the "success" of the score, the team needs daily physical training, technical training,tactical training.
Among them, I will systematization of tactics according to team situation and game situation and study on
rational teaching methods and help in handball coaching.
〈２〉
Strengthening and coaching athletes are indispensable for improving sports competitiveness.
In addition to this, in recent years, the existence of "referee", which is required to judge the game fairly andaccurately, has also been drawing attention.
Also in handball, strengthening and coaching to player and coaching to referee become the two wheels,
aiming to be a team to fight the world.
However, study on referee has not progressed at present.
So, I will study the influence of referee on games and refereeing, and aim to construct referee training
system.

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KOSEN

Department of Integrated Arts and Science
National Institute of Technology, Okinawa College

National Institute of Technology

English as a Foreign Language ・Foreign Language Classroom Anxiety
Name

Makoa Carman

Status

Lecturer

Affiliations

E-mailmakoac@okinawa-ct.ac.jp

The Japan Association for Language Teaching (JALT)

Keywords

English as a Foreign Language (EFL), Foreign Language Classroom Anxiety (FLCA)

TechnicalSupport Skills

・ English oral communication
・ Curriculum design
・ Teaching English language learners

Research Contents

Foreign Language Classroom Anxiety (FLCA)

Teaching English language learners (ELL) with a focus on oral communication.
Many students in Japan associate speaking English with negative emotions. Foreign language classroom
anxiety (FLCA) is an obstacle many ELLs never overcome. FLCA may result in a lack of motivation tostudy, feelings of hopelessness, panic, or withdrawal in the classroom.
I plan to research techniques to reduce the anxiety and improve the motivation of ELLs in EFL classrooms.
I would like to explore the use of hypnotherapy to reduce anxiety and increase motivation and the possible
application of hypnotherapy in the reduction of FLCA.

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KOSEN

Department of Integrated Arts and Science,
National Institute of Technology, Okinawa CollegeNational Institute of Technology

English Education・English Speech& Presentation Skills
NameYOSHII, Risa

E-mailSenior Assistant Professor
SocietyofEnglish
Affiliations(SELT-Okinawa)ryoshii@okinawa-ct.ac.jp

StatusLanguage

Teachers-Okinawa

Keywords

English Education, Educational Counseling, Teaching and Learning with Technology

TechnicalSupport Skills

・English Speech & Presentation Skills
・Oral Communication
・Motivational Learning

Research Contents

Motivational Learning

Research interests lie in the following areas:
My research is focused on the development of “Students’ Creative Confidence through teaching
English as a tool for Global Communication.” Through my teaching experience, I have learned that students
show higher motivation when they have opportunities to express themselves regardless of their Englishabilities. Therefore, I try to “Teach English in English (TEE) as much as possible while creating
Student-Centered Communicative Classes.”

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