1.

論文(リポジトリ)

論文(リポジトリ)
Imura, Yoshimi ; Nakamura, Ichiro ; Juntasin, Weenaporn ; Hossain, Mohammad Amzad ; Thaikua, Sarayut ; Poungkaew, Rattikan ; Kawamoto, Yasuhiro
出版情報: Agronomy.  14  pp.1-14,  2024-02-29.  © 2024 by the authors. Licensee MDPI, Basel, Switzerland.
概要: Two field trials were conducted in Northern Thailand from 2018 to 2020 to determine the best manual harvesting method fo r maximizing seed yield and seed quality of two Urochloa ruziziensis cultivars, cv. OKI-1 and cv. Br-203. Four manual seed harvesting methods were implicated in a randomized complete block design with four replicates. The four methods were as follows: knocking seeds from seedheads into a nylon net receptacle and collecting them once every day (T1); knocking seeds from seedheads into a nylon net receptacle and collecting them once every three days (T2); allowing ripe seeds to fall into a nylon net sheet that was stretched as a receptacle beneath the seedheads and collecting seeds once every five days (T3); and covering the tied seedheads with a nylon net bag and collecting seeds once every five days (T4). The highest pure seed yield was obtained from T3 in cv. Br-203 (333.11 kg/ha), as well as the highest trend in cv. OKI-1 (534.67 kg/ha). T3 produced 22–46% and 11–27% more pure germinated seed yields than the other methods in cv. Br-203 and cv. OKI-1, respectively. As a result, T3 was recommended for higher seed yield, convenient seed harvest, and reduced manual seed harvest time. 続きを見る
2.

論文(リポジトリ)

論文(リポジトリ)
Farooqi, Javed Ahmad ; Ono, Hiroko
出版情報: Japan Architectural Review.  7  pp.1-15,  2024-01-03.  Japan Architectural Review published by John Wiley & Sons Australia, Ltd on behalf of Architectural Institute of Japan.
概要: This study evaluates land use transformation in Kandahar’s old city, also known as Ahmad Shahi city, the birthplace and first capital of modern Afghanistan. The city consists of four rectangular quarters and is surrounded by a high strong mud wall, entrance gates, and a moat. In the early 20th century, the city experienced significant and arbitrary expansion, which certainly affected the urban fabric of the area, the streets were widened, and the city wall, towers, and gates were demolished, and the area was added to the construction of new government buildings, commercial establishments, and residential plots. This study aims to evaluate the alterations in the old city’s urban morphology, culture, and sociology by conducting a comparative analysis of three maps from different time periods and considering various factors within the target area. 続きを見る
3.

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論文(リポジトリ)
宮国, 薫子 ; Miyakuni, Kaoruko
出版情報: 琉球大学経営研究 — University of the Ryukyus Management Research.  pp.1-15,  2024-01.  国際地域創造学部 経営プログラム — Faculty of Global and Regional Studies, Management Program
概要: Tourism is one of the major economic drivers of small island developing nations (SIDs). Republic of Palau is one of the countries which depends heavily on tourism for their economy. In 2015, United Nations adopted Sustainable Development Goals (SDGs) and required member nations to submit Voluntary National Review (VNR) to develop their economies guided by SDGs. This thesis aims to clarify the relationship between tourism and SDGs by introducing history, culture, tourism, and VNR of Republic of Palau regarding SDGs 8 (Decent Work and Economic Growth), 12 (Responsible Production and Consumption), and 14 (Life below Water) . 続きを見る
4.

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論文(リポジトリ)
Ito, Masahiko
出版情報: Ryukyu Mathematical Journal.  36  pp.1-47,  2023-12-28.  琉球大学理学部数理科学教室
概要: We provide explicit expressions for two types of first order q-difference systems for the Jackson integral of symmetric Selberg type. One is the q- difference system known to be the q-KZ equation and the other is the q-difference system for parameters different from the q-KZ equation. We use a basis of the systems introduced by Matsuo in his study of the q-KZ equation. As a result, the similarity of these two systems is discussed by concrete calculations. Interme- diate calculations are made use of the Riemann-Hilbelt method for q-difference equation from connection matrix established by Aomoto. 続きを見る
5.

論文(リポジトリ)

論文(リポジトリ)
Kimoto, Kazufumi
出版情報: Ryukyu Mathematical Journal.  36  pp.49-68,  2023-12-28.  琉球大学理学部数理科学教室
概要: We establish a formula for the two-variable zeta functions for graphs introduced by Lorenzini, and use it to give explicit formulas of the zeta functions for dipole graphs, doubled trees and friendship graphs. We observe that the two-variable zeta functions for these graphs have a unified formula expressed using the Tutte polynomials. 続きを見る
6.

論文(リポジトリ)

論文(リポジトリ)
Sudo, Takahiro
出版情報: Ryukyu Mathematical Journal.  36  pp.69-112,  2023-12-28.  琉球大学理学部数理科学教室
概要: We study the entire cyclic cohomology theory for Banach algebras by following a part of the noncommutative geometric theory invented by Connes.
7.

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論文(リポジトリ)
Toda, Kei ; Obolkin, Vladimir ; Ohira, Shin-Ichi ; Saeki, Kentaro
出版情報: communications biology.  pp.1-10,  2023-11-24.  Springer Nature
概要: Phytoplanktonic dinoflagellates form colonies between vertical ice crystals during the icemelting season in Lake Baikal, but how the plankton survive the freezing conditions is not known. Here we show that the phytoplankton produces large amounts of dimethylsulfoniopropionate (DMSP), which is best-known as a marine compound. Lake-water DMSP concentrations in the spring season are comparable with those in the oceans, and colony water in ice exhibits extremely high concentrations. DMSP concentration of surface water correlates with plankton density and reaches a maximum in mid-April, with temperature-dependent fluctuations. DMSP is released from plankton cells into water in warm days. DMSP is a characteristic osmolyte of marine algae; our results demonstrate that freshwater plankton, Gymnodinium baicalense, has DMSP-producing ability, and efficiently uses the limited sulfur resource (only 1/500 of sea sulfate) to survive in freshwater ice. Plankton in Lake Baikal do not need an osmolyte, and our results clearly indicate that DMSP plays a cryoprotective role. DMSP, although a characteristic marine compound, could also be an important zwitterion for algae of other boreal lakes, alpine snow, and glaciers. 続きを見る
8.

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論文(リポジトリ)
Hanzawa, Eiko ; Sasaki, Kazuhiro ; Nagai, Shinsei ; Obara, Mitsuhiro ; Fukuta, Yoshimichi ; Uga, Yusaku ; Miyao, Akio ; Hirochika, Hirohiko ; Higashitani, Atsushi ; Maekawa, Masahiko ; Sato, Tadashi
出版情報: Rice.  6  2023-11-11.  Springer
URL: http://hdl.handle.net/20.500.12000/0002019894
概要: Background: Root system architecture is an important trait affecting the uptake of nutrients and water by crops. Shallower root systems preferentially take up nutrients from the topsoil and help avoid unfavorable environments in deeper soil layers. We have found a soil-surface rooting mutant from an M2 population that was regenerated from seed calli of a japonica rice cultivar, Nipponbare. In this study, we examined the genetic and physiological characteristics of this mutant. Results: The primary roots of the mutant showed no gravitropic response from the seedling stage on, whereas the gravitropic response of the shoots was normal. Segregation analyses by using an F2 population derived from a cross between the soil-surface rooting mutant and wild-type Nipponbare indicated that the trait was controlled by a single recessive gene, designated as sor1. Fine mapping by using an F2 population derived from a cross between the mutant and an indica rice cultivar, Kasalath, revealed that sor1 was located within a 136-kb region between the simple sequence repeat markers RM16254 and 2935-6 on the terminal region of the short arm of chromosome 4, where 13 putative open reading frames (ORFs) were found. We sequenced these ORFs and detected a 33-bp deletion in one of them, Os04g0101800. Transgenic plants of the mutant transformed with the genomic fragment carrying the Os04g0101800 sequence from Nipponbare showed normal gravitropic responses and no soil-surface rooting. Conclusion: These results suggest that sor1, a rice mutant causing soil-surface rooting and altered root gravitropic response, is allelic to Os04g0101800, and that a 33-bp deletion in the coding region of this gene causes the mutant phenotypes. 続きを見る
9.

論文(リポジトリ)

論文(リポジトリ)
Osada, Yohei ; 長田, 庸平
出版情報: Fauna Ryukyuana.  68  pp.27-28,  2023-10-12.  琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/0002020042
概要: Tornodoxa paraleptopalta Ueda is newly recorded from Yakushima Island, Kagoshima Prefecture. The specimen of adult and t he male genitalia are shown. This species is recorded from the Ryukyu Islands for the first time.
ヒメハイジロキバガは大阪府産の標本に基づいて記載され, これまで日本 (本州, 九州) および台湾から知られていた. 大阪市立自然史博物館での標本調査において, 屋久島産の本種の標本が確認されたので, ここに記録する. 琉球列島では初記録である.
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10.

論文(リポジトリ)

論文(リポジトリ)
Osada, Yohei ; 長田, 庸平
出版情報: Fauna Ryukyuana.  68  pp.29-30,  2023-10-12.  琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/0002020043
概要: Lopharcha psathyra Diakonoff is newly recorded from Yakushima Island. The specimen and female genitalia are shown. This species is recorded from the Ryukyu Islands for the first time.
スジケマダラハマキはこれまで日本の本州, 四国, 九州から知られていた.寄主植物は, クスノキ科のシロダモとクスノキである. 大阪市立自然史博物館での標本調査において, 屋久島産の本種の標本が確認されたので, 琉球列島初記録としてここに記録する.
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11.

論文(リポジトリ)

論文(リポジトリ)
Osada, Yohei ; 長田, 庸平
出版情報: Fauna Ryukyuana.  68  pp.31-32,  2023-10-12.  琉球大学資料館 (風樹館)
URL: http://hdl.handle.net/20.500.12000/0002020044
概要: Caloptilia zachrysa (Meyrick) is newly recorded from Yakushima Island. A female adult of the species and female genitali a are shown.
リンゴの害虫として知られるリンゴハマキホソガは日本, 台湾, 韓国, 中国, インド, スリランカに分布し, 日本国内では本州, 四国, 九州, 沖縄島から知られていた. 大阪市立自然史博物館での標本調査において, 屋久島産の本種の標本が確認されたので, ここに記録する.屋久島では初記録である.
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12.

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論文(リポジトリ)
Karasawa, Shigenori ; 唐沢, 重考 ; Nagata, Satomi ; 長田, 諭実 ; Honda, Masanao ; 本多, 正尚
出版情報: Fauna Ryukyuana.  68  pp.35-40,  2023-10-12.  琉球大学資料館(風樹館)
URL: http://hdl.handle.net/20.500.12000/0002020046
概要: Adult female and immature specimens of Typopeltis crucifer Pocock, 1894, were collected from Taramajima Island, Sakishim a Islands, southwestern Japan. A phylogenetic tree built using the mitochondrial COI gene (620 bp) of T. crucifer from Sakishima Islands revealed that specimens from Ishigakijima Island comprised two genetic groups. One of these groups formed a clade with specimens from Taramajima Island, and the other group was closely related to specimens from Iriomotejima Island. Our finding indicates that phylogeographic analyses on soil-dwelling invertebrates are expected to provide new insights into the paleogeographic processes that have shaped the Ryukyu Islands.
多良間島から雌成体と幼体のタイワンサソリモドキを採集した. ミトコンドリアCOI遺伝子 (620 bp) を用いた系統解析の結果, 石垣島には2つの遺伝グループがあり, そのうちの一つは多良間島の個体とクレードを構成することが分かった. また, もう一つのグループは西表島の個体とクレードを構成した. 本研究の結果, 土壌性無脊椎動物の系統地理学的研究は, 先島諸島の系統地理学に新たな知見をもたらすことを示唆する.
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13.

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論文(リポジトリ)
Nomura, Keiichi ; 野村, 恵一 ; Baird, Andrew H. ; Suzuki, Go ; 鈴木, 豪
出版情報: Fauna Ryukyuana.  68  pp.41-51,  2023-10-12.  琉球大学資料館(風樹館)
URL: http://hdl.handle.net/20.500.12000/0002020047
概要: A survey of Montipora corals fauna was conducted around Minami-Daitojima Island in June 2022 and a total of eight specie s (Montipora nodosa, Montipora sp. OKINAWATOGE, M. peltiformis, M. sinensis, M. stalagmites, M. turgescens, M. venosa and Montipora sp.) were recorded. Of these species, M. stalagmites was recorded for the first time in the 135 years since it was originally described. The species richness of the Montipora of Minami-Daito Island is very low when compared to other islands of the Ryukyu Archipelago. This is presumably because of the severe habitat environment of this oceanic island which has a steeply sloping bathymetry, little reef development, and extremely high wave energy.
2022年6月に南大東島でコモンサンゴ類相の調査が行われ, 合計8種(イワトゲコモンサンゴMontipora nodosa, オキナワトゲコモンサンゴMontipora sp. OKINAWATOGE, ムラサキコモンサンゴM. peltiformis, ナンサコモンサンゴM. sinensis, ダイトウコモンサンゴ (新称) M. stalagmites, ホンアバタコモンサンゴM. turgescens, フカアナコモンサンゴM. venosaならびにコモンサンゴ類の一種Montipora sp.)が記録された. これらの種のうち, ダイトウコモンサンゴは, タヒチからの原記載以来135年ぶりに記録された. 南大東島のコモンサンゴ類の種の豊富さは, 他の琉球列島の島々と比較して非常に低い. これは, この海洋島が急傾斜でサンゴ礁が発達せず, 波当たりが非常に強いという厳しい生息環境のためであると推察された.
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14.

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論文(リポジトリ)
Shinzato, Yuki ; Zamami, Ryo ; Oshiro, Nanako ; Nakamura, Takuto ; Ishida, Akio ; Ohya, Yusuke ; Kohagura, Kentaro
出版情報: Biomedicines.  11  2023-07-21.  © 2023 by the authors. Licensee MDPI, Basel, Switzerland.
URL: http://hdl.handle.net/20.500.12000/0002020000
概要: The combination effects of smoking (SMK) and hyperuricemia (HU) on renal arteriolosclerosis in patients with IgA nephrop athy remain unknown. We examined the cross-sectional association between smoking (current or former) and renal arteriolar hyalinosis and wall thickening with or without HU [uric acid (UA) level 7 and 5 mg/dL in men and women] in 87 patients with IgA nephropathy who underwent renal biopsy. Arteriolar hyalinosis and wall thickening were assessed by the semiquantitative grading of arterioles. The SMK/HU subgroup showed the highest indices for hyalinosis and wall thickening, followed by the non-SMK/HU, SMK/non-HU, and non- SMK/non-HU subgroups. Multiple logistic analysis showed that SMK/HU, but not SMK/non-HU, was significantly associated with an increased risk of higher-grade renal arteriolar wall thickening. However, this did not occur with hyalinosis compared to non-SMK/non-HU. The adjusted odds ratio (95% confidence interval, p value) for SMK/HU was 12.8 (1.36–119, p < 0.05) for wall thickening. An association between SMK and renal arteriolar wall thickening might be prevalent only among patients with HU and in patients with IgA nephropathy. Further prospective studies are needed to determine whether patients with HU and SMK history exhibit rapid eGFR deterioration. 続きを見る
15.

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論文(リポジトリ)
Aoki, Yumi ; Takaesu, Yoshikazu ; Matsui, Kentaro ; Tokumasu, Takahiro ; Tani, Hideaki ; Takekita, Yoshiteru ; Kanazawa, Tetsufumi ; Kishimoto, Taishiro ; Tarutani, Seiichiro ; Hashimoto, Naoki ; Takeuchi, Hiroyoshi ; Mishima, Kazuo ; Inada, Ken
出版情報: Neuropsychopharmacology Reports.  2023-07-14.  © 2023 The Authors. Neuropsychopharmacology Reports published by John Wiley & Sons Australia, Ltd on behalf of the Japanese Society of Neuropsychopharmacology.
URL: http://hdl.handle.net/20.500.12000/0002019998
概要: Aim: Continued antipsychotic treatment is the key to preventing relapse. Maintenance antipsychotic monotherapy and optimal dose use are recommended for individuals with stable schizophrenia because of their undesirable effects. Decision aids (DAs) are clinical conversation tools that facilitate shared decision-making (SDM) between patients and health-care providers. This study aimed to describe the development process and results of acceptability testing of a DA for individuals with stable schizophrenia, considering (i) whether to continue high-dose antipsychotics or reduce to the standard dose and (ii) whether to continue two antipsychotics or shift to monotherapy. Methods: A DA was developed according to the guidelines for the appropriate use of psychotropic medications and International Patient Decision Aid Standards (IPDAS). First, a DA prototype was developed based on a previous systematic review and meta-analysis conducted for identifying the effects of continuing or reducing antipsychotic treatment. Second, mixed-method survey was performed among individuals with schizophrenia and health-care providers to modify and finalize the DA. Results: The DA consisted of an explanation of schizophrenia, options to continue high-dose antipsychotics or reduce to the standard dose, options to continue two antipsychotics or shift to monotherapy, pros and cons of each option, and a value-clarification worksheet for each option. The patients (n = 20) reported acceptable language use (75%), adequate information (75%), and well-balanced presentation (79%). Health-care providers (n = 20) also provided favorable overall feedback. The final DA covered six IPDAS qualifying criteria. Conclusion: A DA was successfully developed for schizophrenia, considering whether to reduce antipsychotics, which can be used in the SDM process. 続きを見る
16.

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論文(リポジトリ)
Kitajima Eiji ; Sato Takashi ; Kurata Koji ; Miyata Ryota
出版情報: PLOS ONE.  18  2023-06-23.  © 2023 Kitajima et al.
URL: http://hdl.handle.net/20.500.12000/0002019996
概要: We propose a framework to analyze the relationship between the movement features of a wheel gymnast around the mounting phase of Unit 2 of the vault event and execution (Escore) deductions from a machine-learning perspective. We first developed an automation system from a video of a wheel gymnast performing a tuck-front somersault to extract the four frames highlighting its Unit 2 performance of the vault event, such as take-off, pikemount, the starting point of time on the wheel, and final position before the thrust. We implemented this automation using recurrent all-pairs field transforms (RAFT) and XMem, i.e., deep network architectures respectively for optical flow estimation and video object segmentation. We then used a markerless pose-estimation system called OpenPose to acquire the coordinates of the gymnast’s body joints, such as shoulders, hips, and knees then calculate the joint angles at the extracted video frames. Finally, we constructed a regression model to estimate the E-score deductions during Unit 2 on the basis of the joint angles using an ensemble learning algorithm called Random Forests, with which we could automatically select a small number of features with the nonzero values of feature importances. By applying our framework of markerless motion analysis to videos of male wheel gymnasts performing the vault, we achieved precise estimation of the E-score deductions during Unit 2 with a determination coefficient of 0.79. We found the two movement features of particular importance for them to avoid significant deductions: time on the wheel and angles of knees at the pike-mount position. The selected features well reflected the maturity of the gymnast’s skills related to the motions of riding the wheel, easily noticeable to the judges, and their branching conditions were almost consistent with the general vault regulations. 続きを見る
17.

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論文(リポジトリ)
Futenma, Kunihiro ; Takaesu, Yoshikazu ; Komada, Yoko ; Shimura, Akiyoshi ; Okajima, Isa ; Matsui, Kentaro ; Tanioka, Kosuke ; Inoue, Yuichi
出版情報: Frontiers in Psychiatry.  14  2023-05-19.  © 2023 Futenma, Takaesu, Komada, Shimura, Okajima, Matsui, Tanioka and Inoue.
URL: http://hdl.handle.net/20.500.12000/0002019997
概要: Delayed sleep–wake phase disorder (DSWPD) is a sleep disorder in which the habitual sleep–wake timing is delayed, result ing in difficulty in falling asleep and waking up at the desired time. Patients with DSWPD frequently experience fatigue, impaired concentration, sleep deprivation during weekdays, and problems of absenteeism, which may be further complicated by depressive symptoms. DSWPD is typically prevalent during adolescence and young adulthood. Although there are no studies comparing internationally, the prevalence of DSWPD is estimated to be approximately 3% with little racial differences between Caucasians and Asians. The presence of this disorder is associated with various physiological, genetic and psychological as well as behavioral factors. Furthermore, social factors are also involved in the mechanism of DSWPD. Recently, delayed sleep phase and prolonged sleep duration in the young generation have been reported during the period of COVID-19 pandemic-related behavioral restrictions. This phenomenon raises a concern about the risk of a mismatch between their sleep–wake phase and social life that may lead to the development of DSWPD after the removal of these restrictions. Although the typical feature of DSWPD is a delay in circadian rhythms, individuals with DSWPD without having misalignment of objectively measured circadian rhythm markers account for approximately 40% of the cases, wherein the psychological and behavioral characteristics of young people, such as truancy and academic or social troubles, are largely involved in the mechanism of this disorder. Recent studies have shown that DSWPD is frequently comorbid with psychiatric disorders, particularly mood and neurodevelopmental disorders, both of which have a bidirectional association with the pathophysiology of DSWPD. Additionally, patients with DSWPD have a strong tendency toward neuroticism and anxiety, which may result in the aggravation of insomnia symptoms. Therefore, future studies should address the effectiveness of cognitive-behavioral approaches in addition to chronobiological approaches in the treatment of DSWPD. 続きを見る
18.

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論文(リポジトリ)
Hayward, Philip ; Kearney, Christine
出版情報: Okinawan Journal of Island Studies.  4  pp.1-18,  2023-05-15.  Research Institute for Islands and Sustainability
19.

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論文(リポジトリ)
Albert, Patrick Donald ; Purifoy, Matthew
出版情報: Okinawan Journal of Island Studies.  4  pp.19-34,  2023-05-15.  Research Institute for Islands and Sustainability
20.

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論文(リポジトリ)
Hinekura, Smith
出版情報: Okinawan Journal of Island Studies.  4  pp.89-90,  2023-05-15.  Research Institute for Islands and Sustainability
21.

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論文(リポジトリ)
Naputi, Francine M.S.N.
出版情報: Okinawan Journal of Island Studies.  4  pp.91-93,  2023-05-15.  Research Institute for Islands and Sustainability
22.

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論文(リポジトリ)
Robie, David
出版情報: Okinawan Journal of Island Studies.  4  pp.94-96,  2023-05-15.  Research Institute for Islands and Sustainability
23.

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論文(リポジトリ)
Vunidilo, Tarisi
出版情報: Okinawan Journal of Island Studies.  4  pp.97-99,  2023-05-15.  Research Institute for Islands and Sustainability
24.

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論文(リポジトリ)
Barnett, Samantha
出版情報: Okinawan Journal of Island Studies.  4  pp.100-101,  2023-05-15.  Research Institute for Islands and Sustainability
25.

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論文(リポジトリ)
Harris, Usha Sundar
出版情報: Okinawan Journal of Island Studies.  4  pp.102-103,  2023-05-15.  Research Institute for Islands and Sustainability
26.

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論文(リポジトリ)
Papoutsaki, Evangelia
出版情報: Okinawan Journal of Island Studies.  4  pp.104-105,  2023-05-15.  Research Institute for Islands and Sustainability
27.

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論文(リポジトリ)
Johnson, Henry
出版情報: Okinawan Journal of Island Studies.  4  pp.106-108,  2023-05-15.  Research Institute for Islands and Sustainability
28.

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論文(リポジトリ)
Kirk, Gwyn
出版情報: Okinawan Journal of Island Studies.  4  pp.109-116,  2023-05-15.  Research Institute for Islands and Sustainability
29.

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論文(リポジトリ)
Espina, Tabitha ; Ong, Josephine Faith
出版情報: Okinawan Journal of Island Studies.  4  pp.117-121,  2023-05-15.  Research Institute for Islands and Sustainability
30.

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論文(リポジトリ)
Laclé, Francielle
出版情報: Okinawan Journal of Island Studies.  4  pp.122-129,  2023-05-15.  Research Institute for Islands and Sustainability
31.

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論文(リポジトリ)
Kelman, Ilan
出版情報: Okinawan Journal of Island Studies.  4  pp.130-143,  2023-05-15.  Research Institute for Islands and Sustainability
32.

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論文(リポジトリ)
Frain, Sylvia C.
出版情報: Okinawan Journal of Island Studies.  4  pp.144-155,  2023-05-15.  Research Institute for Islands and Sustainability
33.

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論文(リポジトリ)
Vaughn, Kēhaulani ; Reilly, Brandon J. ; Flores, Alfred Peredo ; Anesi, Juliann
出版情報: Okinawan Journal of Island Studies.  4  pp.156-162,  2023-05-15.  Research Institute for Islands and Sustainability
34.

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論文(リポジトリ)
Cangah, Brenda
出版情報: Okinawan Journal of Island Studies.  4  pp.163-173,  2023-05-15.  Research Institute for Islands and Sustainability
35.

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論文(リポジトリ)
Hermes, Karin Louise
出版情報: Okinawan Journal of Island Studies.  4  pp.174-181,  2023-05-15.  Research Institute for Islands and Sustainability
36.

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論文(リポジトリ)
Fuste-Forne, Francesc
出版情報: Okinawan Journal of Island Studies.  4  pp.182-188,  2023-05-15.  Research Institute for Islands and Sustainability
37.

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Karides, Marina ; Rodríguez-Coss, Noralis
出版情報: Okinawan Journal of Island Studies.  4  pp.189-197,  2023-05-15.  Research Institute for Islands and Sustainability
概要: The following is a curated conversation between Marina Karides and Noralis Rodríguez-Coss, who together founded the Isla nd Feminisms Project and continue to advance feminist, decolonial, and social justice approaches in island studies. With the publication of “Why Island Feminism?” (Karides 2017), conference sessions, and the establishment of the Island Feminisms Spring Series, begun in 2020, the co-founders suggest that the field of island studies was guided towards gender and women (see Gender and Island Communities 2020, edited by Gaini and Nielsen as an example). However, they argue that the field continues to struggle to incorporate feminist and intersectional frameworks analytically. Karides and Rodríguez-Coss explore the paucity of feminist grounding in island studies, which tends towards the approach of “add women and stir.” Their dialogue reveals grassroots island activism as the core of island feminisms, which they identify as a social justice project. 続きを見る
38.

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Wheeler, Vehia ; Duong-Pedica, Anaïs
出版情報: Okinawan Journal of Island Studies.  4  pp.198-219,  2023-05-15.  Research Institute for Islands and Sustainability
39.

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論文(リポジトリ)
Forsyth, Meghan C.
出版情報: Okinawan Journal of Island Studies.  4  pp.1-26,  2023-05-15.  Research Institute for Islands and Sustainability
概要: The year 2020 marked the tricentennial of Acadian and French presence on Prince Edward Island, Canada’s smallest provinc e, located in the Gulf of Saint Lawrence on the Atlantic coast. Despite historical traumas and the pressures exerted by a majority Anglophone environment, the small Island Acadian population has persisted and thrived. Nevertheless, the process of anglicization that began in earnest in the 1860s continues to the present day. This article examines the goals, production, and reception of a mini web-documentary series about living in French on Prince Edward Island that aims to encourage the intergenerational transmission of the French language and foster a sense of legitimization and cultural pride. Complementing a long history of community activism around the Island’s French language and Acadian culture, the documentary project uses music, storytelling, and technology to promote cultural and linguistic sustainability. This article explores the role of music in the contemporary dynamics of sustaining, celebrating, and advocating for the French language and Francophone Acadian culture in this small island community. 続きを見る
40.

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Robie, David
出版情報: Okinawan Journal of Island Studies.  4  pp.27-52,  2023-05-15.  Research Institute for Islands and Sustainability
概要: For more than a decade, the pioneering Pacific Media Centre at Aotearoa’s Auckland University of Technology led the way in journalism research and publication, publishing the globally ranked peer-reviewed journal Pacific Journalism Review, monographs, and a series of media and social justice books and documentaries. Perhaps even more important was the centre’s role in nurturing young and challenging Asia-Pacific student journalists and communicators seeking social change and providing them with the opportunity, support, and encouragement to enable them to become confident changemakers and community advocates. This article is a case study of a style of academic advocacy and activism that was characterised by its own multiethnic stakeholders’ advisory board as “the voice of the voiceless.” A feature was the “Talanoa journalism” model (Robie 2014), focused more on grassroots people and community resilience, especially faced with the global COVID-19 pandemic and climate crisis. The inspired initiative ended with a change of management to a more neoliberal approach to education at the university with scant appreciation for the vision. 続きを見る
41.

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論文(リポジトリ)
Bomai, Dick Witne ; Thomas, Verena ; Kauli, Jackie ; Spurgeon, Christina
出版情報: Okinawan Journal of Island Studies.  4  pp.53-70,  2023-05-15.  Research Institute for Islands and Sustainability
概要: This article examines the role of women in peacebuilding and in reducing accusations of sorcery and related violence amo ng the Yuri tribe in Papua New Guinea (PNG). The formation of the community-led peace movement YAKA (Yuri Alaiku Kuikane Association) in 2013 led to a stop of the tribal fights that frequently occurred among the Yuri people over several decades. Accusations of sorcery, previously related to tribal fights and contemporary forms of violent accusations, disproportionately affect women in the patriarchal PNG highland society. However, less documented are women’s roles in addressing sorcery accusation-related violence. Building on women’s agency and involvement in local peacebuilding, this paper investigates the contribution of women in mitigating sorcery accusations and related violence. The action research project discussed in this article included the local storytelling approach kapori and incorporated photovoice for participants to share their lived experiences. We examine the gendered dynamics in local activism and the cultural context of Yuri with regards to community well-being and leadership to inform future violence prevention strategies. Our research investigates the strategies of Yuri women to meaningfully contribute to peacebuilding and social cohesion to inform future violence prevention strategies. We demonstrate how Yuri women enact their agency in both private and public spaces, informed by empathy, traditional and Church values, family, and relational concepts. 続きを見る
42.

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Duong-Pedica, Anaïs
出版情報: Okinawan Journal of Island Studies.  4  pp.71-88,  2023-05-15.  Research Institute for Islands and Sustainability
概要: “La Pause Décoloniale” is a radio show and podcast from Kanaky/New Caledonia that explores women’s reflections, formulat ions of, and contributions to decolonization. Created in February 2022, it operates in a context of ongoing French settler colonialism and through a formal decolonization process. However, this formal decolonization process has been questioned and critiqued, especially when it comes to France’s interest to maintain its sovereignty in Kanaky/New Caledonia and in the Pacific region more generally. This paper explores “La Pause Décoloniale” as a feminist intervention by women to resist the despair and disappointment generated by the current political context. It discusses how the radio program came about, presents the members of the team and how they work collaboratively, and their vision of the relation between feminism and decolonization. The paper also reflects on the episodes produced and the importance of translation. It does so by connecting the practice of “La Pause Décoloniale” to the history of women’s political action in the Pacific and in Kanaky/New Caledonia and making visible the constellation of relations to people, to place(s), and to struggles that are necessary to meaningfully do the work of decolonization. 続きを見る
43.

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論文(リポジトリ)
Na’puti, Tiara R. ; Karides, Marina ; Ginoza, Ayano ; Papoutsaki, Evangelia
出版情報: Okinawan Journal of Island Studies.  4  pp.ⅰ-ⅴ,  2023-05-15.  Research Institute for Islands and Sustainability
44.

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Aoki, Yumi ; Takaesu, Yoshikazu ; Inada, Ken ; Yamada, Hiroki ; Murao, Tomohiko ; Kikuchi, Toshiaki ; Takeshima, Masahiro ; Tani, Masayuki ; Mishima, Kazuo ; Otsubo, Tempei
出版情報: Frontiers in Psychiatry.  14  2023-05-12.  © 2023 Aoki, Takaesu, Inada, Yamada, Murao, Kikuchi, Takeshima, Tani, Mishima and Otsubo.
URL: http://hdl.handle.net/20.500.12000/0002019930
概要: Aim: We aimed to develop a decision aid (DA) for individuals with anxiety disorders who consider tapering benzodiazepine (BZD) anxiolytics, and if tapering, tapering BZD anxiolytics with or without cognitive behavioral therapy (CBT) for anxiety. We also assessed its acceptability among stakeholders. Methods: First, we conducted a literature review regarding anxiety disorders to determine treatment options. We cited the results of the systematic review and meta-analysis, which we conducted previously, to describe the related outcomes of two options: tapering BZD anxiolytics with CBT and tapering BZD anxiolytics without CBT. Second, we developed a DA prototype in accordance with the International Patient Decision Aid Standards. We carried out a mixed methods survey to assess the acceptability among stakeholders including those with anxiety disorders and healthcare providers. Results: Our DA provided information such as explanation of anxiety disorders, options of tapering or not tapering BZD anxiolytics (if tapering, the options of tapering BZD anxiolytics with or without CBT) for anxiety disorder, benefits and risks of each option, and a worksheet for value clarification. For patients (n = 21), the DA appeared to be acceptable language (86%), adequate information (81%), and well-balanced presentation (86%). The developed DA was also acceptable for healthcare providers (n = 10). Conclusion: We successfully created a DA for individuals with anxiety disorders who consider tapering BZD anxiolytics, which was acceptable for both patients and healthcare providers. Our DA was designed to assist patients and healthcare providers to involve decision-making about whether to taper BZD anxiolytics or not. 続きを見る
45.

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Takaesu, Yoshikazu ; Sakurai, Hitoshi ; Aoki, Yumi ; Takeshima, Masahiro ; Ie, Kenya ; Matsui, Kentaro ; Utsumi, Tomohiro ; Shimura, Akiyoshi ; Okajima, Isa ; Kotorii, Nozomu ; Yamashita, Hidehisa ; Suzuki, Masahiro ; Kuriyama, Kenichi ; Shimizu, Eiji ; Mishima, Kazuo ; Watanabe, Koichiro ; Inada, Ken
出版情報: Frontiers in Psychiatry.  14  2023-05-09.  © 2023 Takaesu, Sakurai, Aoki, Takeshima, Ie, Matsui, Utsumi, Shimura, Okajima, Kotorii, Yamashita, Suzuki, Kuriyama, Shimizu, Mishima, Watanabe and Inada.
URL: http://hdl.handle.net/20.500.12000/0002019971
概要: Purpose: There is a lack of evidence regarding answers for clinical questions about treating insomnia disorder. This stu dy aimed to answer the following clinical questions: (1) how to use each hypnotic and non-pharmacological treatment differently depending on clinical situations and (2) how to reduce or stop benzodiazepine hypnotics using alternative pharmacological and nonpharmacological treatments. Methods: Experts were asked to evaluate treatment choices based on 10 clinical questions about insomnia disorder using a nine-point Likert scale (1 = “disagree” to 9 = “agree”). The responses of 196 experts were collected, and the answers were categorized into first-, second-, and third-line recommendations. Results: The primary pharmacological treatment, lemborexant (7.3 2.0), was categorized as a first-line recommendation for sleep initiation insomnia, and lemborexant (7.3 1.8) and suvorexant (6.8 1.8) were categorized as the first-line recommendations for sleep maintenance insomnia. Regarding nonpharmacological treatments for primary treatment, sleep hygiene education was categorized as the first-line recommendation for both sleep initiation (8.4 1.1) and maintenance insomnia (8.1 1.5), while multicomponent cognitive behavioral therapy for insomnia was categorized as the second-line treatment for both sleep initiation (5.6 2.3) and maintenance insomnia (5.7 2.4). When reducing or discontinuing benzodiazepine hypnotics by switching to other medications, lemborexant (7.5 1.8) and suvorexant (6.9 1.9) were categorized as first-line recommendations. Conclusion: Expert consensus indicates that orexin receptor antagonists and sleep hygiene education are recommended as first-line treatments in most clinical situations to treat insomnia disorder. 続きを見る
46.

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論文(リポジトリ)
Ngoc B. Nguyen ; Nguyet T. M. Nguyen ; Nhai T. Nguyen ; Linh H. Le ; Nghia T. La ; Thuy T. T. Nguyen ; Mary Jeany Yanoria ; Hayashi, Nagao ; Saito, Hiroki ; Obara, Mitsuhiro ; Sato, Tadashi ; Fukuta, Yoshimichi
出版情報: Breeding Science.  73  pp.193-203,  2023-04-25.  © 2023 Japanese Society of Breeding.
URL: http://hdl.handle.net/20.500.12000/0002019904
概要: A unique genetic variation with respect to blast resistance was clarified in 201 rice accessions from Vietnam. These acc essions were classified into three clusters—A, B1, and B2—based on their reactions to 26 standard differential blast isolates selected in Vietnam. Cluster A was the dominant cultivar group in Vietnam and the most susceptible of the three clusters. Cluster B1 was the smallest group and the most resistant. Cluster B2 was the second-most dominant group and of intermediate resistance between clusters A and B1. The percentages of accessions comprising each cluster varied by region and area. Accessions in cluster A were distributed widely throughout Vietnam and had the highest frequencies in both the Central and North regions. Accessions in cluster B2 were found with highest frequencies in the mountainous and intermediate areas of the North region. Accessions in cluster B1 were found with highest frequencies in the Central region and Red River Delta area (North region). These results suggest that rice accessions in Vietnam were basically susceptible (cluster A) or of intermediate resistance (cluster B2), and that high-resistance cultivars were mainly distributed in the low altitude areas, such as the Red River Delta area and Central region. 続きを見る
47.

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論文(リポジトリ)
Inagawa, Michiyo ; Nakao, Tatsuma
出版情報: Humanities and Social Sciences Communications.  10  2023-04-22.  © The Author(s) 2023
URL: http://hdl.handle.net/20.500.12000/0002019911
概要: Obtaining data from non-Western cultural contexts is essential for enhancing the crosscultural validity of attachment th eory. This study investigated the associations among maternal attachment style, maternal willingness to serve as an attachment figure, and children’s attachment security in middle childhood in Japan. Sample 1 included a nationwide web survey of 104 dyads of fifth and sixth graders and their mothers. Sample 2 included 53 dyads in an in-person questionnaire survey conducted in Kyoto. In both Samples 1 and 2, the results revealed (1) negative Spearman’s rank correlation coefficients between maternal attachment anxiety and children’s attachment security, (2) positive Pearson’s product-moment correlation coefficients between maternal willingness to serve as an attachment figure and children’s attachment security, and (3) negative Pearson’s product-moment correlation coefficients between maternal attachment anxiety and maternal willingness to serve as an attachment figure. Our data could enhance the cross-cultural validity of attachment in fifth and sixth graders, and suggest that the influence of maternal attachment styles on parental responsiveness changes in middle childhood. 続きを見る
48.

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論文(リポジトリ)
Higa, Sho ; Yamada, Koji ; Kamisato, Shihoko
出版情報: Sensors.  23  2023-04-16.  © 2023 by the authors. Licensee MDPI, Basel, Switzerland.
URL: http://hdl.handle.net/20.500.12000/0002019951
概要: When an electric wheelchair is operated using gaze motion, eye movements such as checking the environment and observing objects are also incorrectly recognized as input operations. This phenomenon is called the “Midas touch problem”, and classifying visual intentions is extremely important. In this paper, we develop a deep learning model that estimates the user’s visual intention in real time and an electric wheelchair control system that combines intention estimation and the gaze dwell time method. The proposed model consists of a 1DCNN-LSTM that estimates visual intention from feature vectors of 10 variables, such as eye movement, head movement, and distance to the fixation point. The evaluation experiments classifying four types of visual intentions show that the proposed model has the highest accuracy compared to other models. In addition, the results of the driving experiments of the electric wheelchair implementing the proposed model show that the user’s efforts to operate the wheelchair are reduced and that the operability of the wheelchair is improved compared to the traditional method. From these results, we concluded that visual intentions could be more accurately estimated by learning time series patterns from eye and head movement data. 続きを見る
49.

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Aoki, Yumi ; Takeshima, Masahiro ; Tsuboi, Takashi ; Katsumoto, Eiichi ; Udagawa, Ken ; Inada, Ken ; Watanabe, Koichiro ; Mishima, Kazuo ; Takaesu, Yoshikazu
出版情報: International Journal of Environmental Research and Public Health.  20  pp.5373-,  2023-04-03.  © 2023 by the authors. Licensee MDPI, Basel, Switzerland.
URL: http://hdl.handle.net/20.500.12000/0002019895
概要: Background: Although long-term use of benzodiazepines and z-drugs (BZDs) is not recommended, little is known about the s takeholders’ perceptions. This study aimed to assess and compare the perceptions of BZD use and decision making regarding its discontinuation between psychiatric outpatients and psychiatrists. Methods: A cross-sectional survey was conducted. Results: Of 104 outpatients, 92% were taking hypnotics and 96% were taking anxiolytics for a year, while 49% were willing to taper hypnotic/anxiolytics within a year of starting. Most psychiatrists felt that “patient and psychiatrist make the decision together on an equal basis” compared to patients (p < 0.001), while more patients felt that “the decision is (was) made considering the psychiatrists’ opinion” compared to psychiatrists (p < 0.001). Of 543 psychiatrists, 79% reported “patients were not willing to discontinue hypnotic/anxiolytic” whereas a certain number of patients conveyed “psychiatrists did not explain in enough detail about hypnotic/anxiolytic discontinuation such as procedure (18.3%), timing (19.2%), and appropriate condition (14.4%)”. Conclusion: The results suggest that the majority of psychiatric outpatients were taking hypnotic/anxiolytics for a long time against their will. There might be a difference in perceptions toward hypnotic/anxiolytic use and decision making for its discontinuation between psychiatric outpatients and psychiatrists. Further research is necessary to fill this gap. 続きを見る
50.

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Iha, Takumi ; Tanaka, Junichi ; Nakata, Junichi
出版情報: 琉球大学理学部紀要.  pp.11-7,  2023-03-31.  琉球大学理学部
概要: As part of our project searching for antiviral molecules, a lipophilic extract of a sponge Amphimedon sp. collected at Iriomote Island was found to show antiviral activity against HCV. After bioassay-guided chromatographic separation, two pigments from the extract, mytiloxanthin (1) and chlorophyllone a (2), were identified as possible antiviral agents. 続きを見る