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1. (Re)locating identities in the ancestral homeland : the complexities of belonging among the migrants from Peru in Okinawa

Author

Kawabata, Miki

Subjects
301
Abstract

This dissertation examines the practices and discourses of migrants of Okinawan descent from Peru around one of the major turning points in their lives, the experience of (re)location to Okinawa, and explores their shifting sense of belonging through an ethnographic approach. Since the late 1980s, Nikkei-jin - people of Japanese descent - have come from Peru to live and work in Japan as a result of an economic downturn and sociopolitical instabilities in Peru, and labour shortages in Japan. Often subsumed under this category of Nikkei-jin are people of Okinawan descent, who are the focus of this study. Primarily based on intensive fieldwork between 1996 and 1998 in Okinawa City, this research explores various sites in which migrants from Peru in Okinawa construct, reflect, negotiate and reconfigure their identities. It looks into migrants' economic activities, ritual participations, and social networks that affect their identity narratives and cultural negotiation processes. Through a historical analysis, it also examines how and why Okinawan-Peruvian migrants' subjectivity is transformed in different political and socio-economic settings. The study finds that migrants' experience of relocation to their 'ancestral home' did not necessarily lead to instant integration and identification with their local 'co-ethnics', due to their status as newcomers, downward mobility to working class and an inability to maximise their cultural capital in the new setting. As a consequence, while they came to be incorporated into Okinawan munchu kinship, discovered Okinawan dimensions in what they had previously conceived unitarily as Nikkei and began to find 'home' in Okinawa, they also began engaging in a transnational way of belonging through forming social networks of their own, thus destabilising the unitary notion of 'Okinawanness'.

Published
2011
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5. Fabrication and characterization of an integrated 9-channel Superconducting Quantum Interference Device magnetometer array

Author

Kawai, Jun, Shimozu, Tatsuyuki, Kawabata, Miki, Uehara, Gen, Adachi, Yoshiaki, Miyamoto, Masakazu, and Ogata, Hisanao

Subjects
Integrated circuit fabrication -- Methods, Superconducting quantum interference devices -- Design and construction, Magnetometer -- Design and construction, Integrated circuit fabrication, Business, Electronics, Electronics and electrical industries
Abstract

Fabrication and characterization of nine Superconducting Quantum Interference Device (SQUID) magnetometers are done, which are integrated on a single chip. This magnetometer will be useful for multi-channel measurement of magnetic fields requiring highly spatial resolution.

Published
2005

6. New fabrication process for Superconducting Quantum Interference Devices with Nb/AlAlOx/Nb junctions by using photosensitive polyimide insulation layers

Author

Kawai, Jun, Shimozu, Tatsuyuki, Kikuchi, Katsuya, Kawabata, Miki, Nakagawa, Hiroshi, Aoyagi, Masahiro, and Uehara, Gen

Subjects
Aluminum oxide -- Electric properties, Niobium -- Electric properties, Electric insulators -- Design and construction, Superconducting quantum interference devices -- Design and construction, Business, Electronics, Electronics and electrical industries
Abstract

A new fabrication process for Superconducting Quantum Interference Devices (SQUIDs) with Nb/AlAlOx/Nb junctions by using photosensitive polyimide insulation layers is proposed. It is found that photosensitive polyimide can be formed into a thin layer with spin-coating and patterned with conventional photolithography.

Published
2005

7. Reduction of Magnetic Noise Originating from a Cryocooler of a Magnetoencephalography System Using Mobile Reference Sensors.

Author

Oyama, Daisuke, Kawai, Jun, Kawabata, Miki, and Adachi, Yoshiaki

Subjects
MAGNETIC sensors, MAGNETIC noise, SUPERCONDUCTING quantum interference devices, NOISE control, FLUXGATE magnetometers, ELECTRIC noise, VIBRATION (Mechanics)
Abstract

The use of helium recycling systems for magnetoencephalography (MEG) has rapidly expanded in recent years. Placing the cryocooler close to the MEG cryostat is expected to aid in achieving a high helium-recycling efficiency. However, the cryocooler typically introduces a large amount of magnetic interference in the MEG system owing to mechanical vibration, and electric and magnetic noise. In this study, we proposed a mobile reference sensor method using fluxgate magnetometers and vibration meters to reduce the noise originating from the cryocooler. We placed the MEG cryostat, which included superconducting quantum interference device (SQUID)-based MEG sensors and reference magnetometers, and a pulse-tube cryocooler inside a magnetically shielded room. We recorded the vibration and magnetic noise during the operation of the cryocooler using the vibration meters and fluxgate magnetometers placed on the cryocooler and reference SQUID magnetometers as the reference noise data. A noise reduction algorithm named time-shift principal component analysis (TSPCA) was applied to the recorded MEG sensor data by employing the reference noise data. A noise reduction ratio of –39 dB was achieved without temporal and spatial distortion of the MEG signal using an MEG phantom. Thus, we conclude that the mobile reference sensor method with the TSPCA algorithm is an effective technique for reducing the magnetic noise originating from the cryocooler. [ABSTRACT FROM AUTHOR]

Published
2022
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8. The media coverage and public awareness of environmental issues in Japan

Author

Mikami, Shunji, Takeshita, Toshio, Nakada, Makoto, and Kawabata, Miki

Subjects
Japan -- Media coverage, United Nations Conference on Environment and Development, 1992 -- Media coverage, Mass media and the environment -- Analysis, Business, Literature/writing, Mass communications
Published
1994

10. キゾク フクザツセイ シャクド ノ ニホンゴバン シサク オヨビ カンレンスル ショヨウイン ノ ケントウ

Author

Sato, Yoko and Kawabata, Miki

Subjects
対人認知, 帰属複雑性, interpersonal perception, causal attribution, attributional complexity, 個人差, individual differences, 原因帰属
Abstract

本研究では、Fletcher, Danilovics, Fernandez, Peterson, & Reeder(1986)が提唱した、帰属複雑性の概念を取り上げ、尺度の日本語版試作ならびに関連する諸要因の検討を行った。帰属複雑性は、人間の行動の理由を理解することへの興味の度合いを示していると考えられ、帰属複雑性が高いと人間の行動の帰属をより数多く行い、低いとより少数にとどめているとされている(Fast, Reimer, & Funder, 2008)。235名の大学生を調査対象とし、まず、帰属複雑性尺度(Fletcher et al., 1986)の日本語版の試作を行い、その信頼性・妥当性を検討した(研究1)。さらにその試作版尺度を用い、帰属複雑性尺度得点が、変化や多様性についてのどのような要因と関連するかを検討した(研究2)。学年、所属学科、兄弟姉妹、祖父母との同居経験、および過去の経験との関連について分析を行った。, This research studied Attributional Complexity (AC) proposed by Fletcher, Danilovics, Fernandez, Peterson, & Reeder (1986). We developed a Japanese trial version of the AC scale, and examined its related factors. It is considered that AC describes the degree of a person’s interest in understanding the causes of human behavior; those who scored higher in AC think about more factors than those who scored lower in AC (Fast, Reimer, & Funder, 2008). 235 undergraduate students participated in our study. In Study 1, first, a Japanese trial version of an AC scale (Fletcher et al., 1986) was developed. Then, its reliability and validity were confirmed. In Study 2, a possible relationship between scores in AC scale and factors related to change or diversity was examined in the trial version. Analyses were performed considering factors such as school year, major, siblings, experience living with grandparents, and other previous experiences.

Published
2012

18. The media coverage and public awareness of environmental issues in Japan

Author

Mikami, Shunji, Takeshita, Toshio, Nakada, Makoto, and Kawabata, Miki

Abstract

This paper examines how mass media in Japan influenced upon the public awareness of the global environmental issues during and prior to the Earth Summit (UNCED) in 1992. Our survey revealed substantial public concern about environmental issues in Japan. Content analysis of television news during the UNCED, however, found relatively weak relationship between the salient environmental issues of the audience and the portrayal of environmental issues in television news during the UNCED. An agenda-setting study of the newspapers during and before the UNCED showed a gradual and cumulative nature of the effects rather than the immediate effects. The amount of television viewing and the attitudes toward environmental tax showed positive association, after controlling for demographic variables, which suggested cultivation effects of the media.

Published
1995
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