result 19462 件
| JaLCDOI | 10.18926/AMO/56376 |
|---|---|
| FullText URL | 72_6_583.pdf |
| Author | Park, Se-Jin| Jeong, Hwa-Jae| Shin, Hun-Kyu| Park, Jai Hyung| Lee, Jaewook| Cho, Yongun| Lee, Seok Won| Murase, Tsuyoshi| Ikemoto, Sumika| Sugamoto, Kazuomi| Kim, Eugene| |
| Abstract | We retrospectively evaluated the altered biomechanics of the talus in 15 adult patients (7 males, 8 females) with chronic lateral ankle instability when the ankle joint moved actively from full dorsiflexion to full plantarflexion under a non-weight bearing condition. CT images were taken for the unstable ankle and the contralateral normal (control) ankle. Three-dimensional surface models of both ankle joints were reconstructed from the CT data, and we used a computer simulation program to compare both ankle motions of inversion/eversion in the coronal plane, plantarflexion/dorsiflexion in the sagittal plane, and internal rotation/external rotation in the axial plane. This evaluation method provides in vivo, dynamic, and 3D results of ankle motion. In the ankles with chronic lateral instability and the controls, the average talar rotational movement of inversion (+)/eversion (−) was 19.0° and 15.5° and the internal rotation (+)/external rotation (−) was 30.4° and 20.7°, respectively. Paired t-tests revealed significant differences in the amount of inversion (+)/eversion (−) (p=0.012) and internal rotation (+)/external rotation (−) (p<0.001) between unstable and normal ankle joints. The difference of mean rotational movement in internal rotation (9.7°) was greater than that of inversion (3.5°). Rotational instability should be considered when evaluating chronic lateral ankle instability. |
| Keywords | three-dimensional motion analysis chronic lateral ankle instability talus ankle joint |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2018-12 |
| Volume | volume72 |
| Issue | issue6 |
| Publisher | Okayama University Medical School |
| Start Page | 583 |
| End Page | 589 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2018 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 30573913 |
| NAID | 120006545161 |
| JaLCDOI | 10.18926/AMO/56375 |
|---|---|
| FullText URL | 72_6_577.pdf |
| Author | Makino, Takuma| Orita, Yorihisa| Tachibana, Tomoyasu| Marunaka, Hidenori| Miki, Kentaro| Akisada, Naoki| Akagi, Yusuke| Usui, Yoshiyuki| Sato, Yasuharu| Yoshino, Tadashi| Nishizaki, Kazunori| |
| Abstract | Since no diagnostic method has been established to distinguish follicular thyroid carcinoma (FTC) from follicular thyroid adenoma (FTA), surgery has been the only way to reach a diagnosis of follicular neoplasm. Here we investigated the computed tomography (CT) features of follicular neoplasms, toward the goal of being able to identify specific CT features allowing the preoperative differentiation of FTC from FTA. We retrospectively analyzed the cases of 205 patients who underwent preoperative CT of the neck and were histopathologically diagnosed with FTC (n=31) or FTA (n=174) after surgery between January 2002 and June 2016 at several hospitals in Japan. In each of these 205 cases, non-enhanced and contrast-enhanced CT images were obtained, and we analyzed the CT features. On univariate analysis, inhomogeneous features of tumor lesions on contrast-enhanced CT were more frequently observed in FTC than in FTA (p=0.0032). A multivariate analysis identified inhomogeneous features of tumor lesions on contrast-enhanced CT images as an independent variable indicative of FTC (p=0.0023). CT thus offers diagnostic assistance in distinguishing FTC from FTA. |
| Keywords | computed tomography follicular thyroid carcinoma follicular thyroid adenoma preoperative diagnosis |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2018-12 |
| Volume | volume72 |
| Issue | issue6 |
| Publisher | Okayama University Medical School |
| Start Page | 577 |
| End Page | 581 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2018 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 30573912 |
| NAID | 120006545160 |
| JaLCDOI | 10.18926/AMO/56374 |
|---|---|
| FullText URL | 72_6_567.pdf |
| Author | Yagi, Takahito| Takagi, Kosei| Umeda, Yuzo| Yoshida, Ryuichi| Nobuoka, Daisuke| Kuise, Takashi| Fujiwara, Toshiyoshi| |
| Abstract | Living donor liver transplantation (LDLT) is the final therapeutic arm for pediatric end-stage liver diseases. Toward the goal of achieving further improvement in LDLT survival, we investigated factors affecting recipient survival. We evaluated the prognostic factors of 60 pediatric recipients (< 16 years old) who underwent LDLT between 1997 and 2015. In a univariate analysis, non-cholestatic (NCS) disease, graft/recipient body weight ratio, cold and warm ischemic times, and intraoperative blood loss were significant factors impacting survival. In a multivariate analysis, NCS disease was the only significant factor worsening survival (p=0.0021). One-and 5-year survival rates for the cholestatic disease (CS, n=43) and NCS (n=17) groups were 100% vs. 70.6% and 97.4% vs. 58.8% (p=0.004, log-rank). Intergroup comparisons revealed that CS was significantly associated with operation time, cold ischemia, hepatomegaly of the native liver, and portal plasty. These data suggest that a cirrhotic, swollen, artery-dominant liver did not increase graft size-related risks despite the surgical complexity of preceding operations. The NCS group’s poorer survival originated from recurrence of the primary disease and liver manifestation of systemic disease untreatable by transplantation. Improving the survival of pediatric recipients requires intensive efforts to prevent primary disease relapse and more rapid diagnoses to exclude contraindications from NCS disease. |
| Keywords | liver transplantation living donor pediatrics prognostic factor cholestatic disease |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2018-12 |
| Volume | volume72 |
| Issue | issue6 |
| Publisher | Okayama University Medical School |
| Start Page | 567 |
| End Page | 576 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2018 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 30573911 |
| NAID | 120006545159 |
| JaLCDOI | 10.18926/AMO/56372 |
|---|---|
| FullText URL | 72_6_553.pdf |
| Author | Omura, Daisuke| Sato, Asuka| Oka, Kosuke| Hanayama, Yoshihisa| Ogawa, Hiroko| Obika, Mikako| Otsuka, Fumio| |
| Abstract | To clarify potential relationships between chief complaints of patients and laboratory data with a focus on aging-related changes, we retrospectively analyzed the data of 843 patients who visited a general medicine department for the first time. Their chief complaints were classified into 8 major symptoms: visceral pain, somatic pain, fever, cough, dizziness, fatigue, appetite loss, and edema. We compared the laboratory data obtained from the patients with complaints with the data of symptom-free (control) patients. The serum sodium and potassium levels in the fever group were decreased compared to those in the control group. In the fever group, the serum sodium level was inversely correlated with age. The ratio of serum urea nitrogen to creatinine (UN/Cr) was increased in the appetite-loss group. There were significant age-dependent increases in the UN/Cr ratio in the appetite-loss and edema groups. Of note, serum levels of free thyroxin were lower in the dizziness group compared to the control group. In addition, the free thyroxin level was inversely correlated with age in the dizziness group but not in the asymptomatic control group. Collectively, the results indicated that osmolality-related laboratory data are strongly associated with individual primary symptoms at the first visit regardless of the final diagnosis. The consideration of age-dependent changes of these markers is helpful for diagnosing latent disorders based on various primary symptoms. |
| Keywords | dizziness fever osmolality serum sodium thyroid dysfunction |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2018-12 |
| Volume | volume72 |
| Issue | issue6 |
| Publisher | Okayama University Medical School |
| Start Page | 553 |
| End Page | 562 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2018 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 30573909 |
| NAID | 120006545157 |
| JaLCDOI | 10.18926/AMO/56371 |
|---|---|
| FullText URL | 72_6_547.pdf |
| Author | Watanabe, Akihisa| Ono, Qana| Nishigami, Tomohiko| Hirooka, Takahiko| Machida, Hirohisa| |
| Abstract | Distinct anatomic variants of the scapula such as the critical shoulder angle (CSA) were found to be associated with rotator cuff tears (RCTs), but it is unclear whether the CSA is a risk factor in Japanese. Here we sought to determine whether the CSA is associated with RCTs in a Japanese population, and whether the CSA is a more useful parameter than the conventionally used parameters. Our RCT group and non-RCT group each consisted of 54 consecutive cases. We compared the groups’ values of CSA, the acromion index (AI), and the lateral acromion angle (LAA) obtained by X-ray imaging. Receiver operating characteristic (ROC) analyses were performed to determine cutoff values and the area under the curve (AUC), and to assess the odds ratio. The means of the CSA and the AI in the RCT group were significantly larger (36.3° vs. 33.7°, 0.74 vs 0.68), but the LAA did not show a significant between-group difference. The AUCs for the CSA and AI were 0.678 and 0.658, the cutoff values were 35.0° and 0.72, and the odds ratios were 3.1 and 2.5, respectively. In conclusion, the CSA was a strong risk factor compared to the AI and LAA for rotator cuff tears. |
| Keywords | rotator cuff tear risk factor critical shoulder angle acromion index lateral acromion angle |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2018-12 |
| Volume | volume72 |
| Issue | issue6 |
| Publisher | Okayama University Medical School |
| Start Page | 547 |
| End Page | 551 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2018 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 30573908 |
| NAID | 120006545156 |
| JaLCDOI | 10.18926/AMO/56370 |
|---|---|
| FullText URL | 72_6_539.pdf |
| Author | Hiraki, Takao| Kamegawa, Tetsushi| Matsuno, Takayuki| Komaki, Toshiyuki| Sakurai, Jun| Kanazawa, Susumu| |
| Abstract | Since 2012, we have been developing a remote-controlled robotic system (Zerobot®) for needle insertion during computed tomography (CT)-guided interventional procedures, such as ablation, biopsy, and drainage. The system was designed via a collaboration between the medical and engineering departments at Okayama University, including various risk control features. It consists of a robot with 6 degrees of freedom that is manipulated using an operation interface to perform needle insertions under CT-guidance. The procedure includes robot positioning, needle targeting, and needle insertion. Phantom experiments have indicated that robotic insertion is equivalent in accuracy to manual insertion, without physician radiation exposure. Animal experiments have revealed that robotic insertion of biopsy introducer needles and various ablation needles is safe and accurate in vivo. The first in vivo human trial, therefore, began in April 2018. After its completion, a larger clinical study will be conducted for commercialization of the robot. This robotic procedure has many potential advantages over a manual procedure: 1) decreased physician fatigue; 2) stable and accurate needle posture without tremor; 3) procedure automation; 4) less experience required for proficiency in needle insertion skills; 5) decreased variance in technical skills among physicians; and 6) increased likelihood of performing the procedure at remote hospitals (i.e., telemedicine). |
| Keywords | robot needle insertion CT-guided interventional radiology |
| Amo Type | Review |
| Publication Title | Acta Medica Okayama |
| Published Date | 2018-12 |
| Volume | volume72 |
| Issue | issue6 |
| Publisher | Okayama University Medical School |
| Start Page | 539 |
| End Page | 546 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2018 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 30573907 |
| NAID | 120006545155 |
| JaLCDOI | 10.18926/bgeou/56366 |
|---|---|
| Title Alternative | The Significance of Using LOD in Japanese Physical Education : Focusing on the Acquisition of a Variety of Movement |
| FullText URL | bgeou_169_057_064.pdf |
| Author | Sako, Haruko| Morita, Reiko| Kawakami, Akiko| |
| Abstract | 本研究では，世界的に認知されているルドルフ・ラバンの運動形態理論を基に開発されたLOD（Language of Dance）に着目し，LODに関する国内外の歴史的経緯と現況を概観した上で，日本国内で求められている身体教育の方向性を視野に入れながら，LODを導入することの意味について検討を行った。その結果，「多様な動き」の系統性をもった学びが求められている現在の日本の身体教育の現状において，身体の動きの「言語系統図」を構築するべく作られたLODは，多様性のある動きの学習のみならず，系統的な動きの学びという課題についても参照するべき内容を提供すると考えられた。 |
| Keywords | ダンス 身体表現 幼児教育 舞踊教育 LOD |
| Publication Title | Bulletin of Graduate School of Education, Okayama University |
| Published Date | 2018-11-28 |
| Volume | volume169 |
| Start Page | 57 |
| End Page | 64 |
| ISSN | 1883-2423 |
| language | Japanese |
| File Version | publisher |
| NAID | 120006543388 |
| JaLCDOI | 10.18926/bgeou/56365 |
|---|---|
| Title Alternative | A Case Study Considering “Food-Related Education” in Combination with Environment to Foster Ordinary Food Habits of Children (1) : Situations about the Practice of Food-Related Education in Japan from the Viewpoints of Recognizing Common Basic Values |
| FullText URL | bgeou_169_047_056.pdf |
| Author | Sato, Sono| Ideno, Takahiro| Chin, Hokushin| Yamamoto, Ikuko| |
| Abstract | 学校教育における今日的課題として，学校・家庭・地域相互の連携を目指した，子どもの食習慣を確立させるための食教育1）実践の充実が求められている。本研究では，これまでの食教育の理論と実践に関する先行研究の特質と課題を見出し，「学習者と人との関わり」を重視した食教育として，文化概念を中核に据えた就学前・初等教育における食教育の試みを理論的・実証的に考察することを目的とする。このうち，第Ⅰ報では，子どもの食教育に関する基本的価値認識の観点から，これまでにわが国でなされている食教育実践に関する先行研究の現状を明らかにしていく。 |
| Keywords | 環境としての食教育 子どもの食習慣 食教育の基本的価値 わが国の食教育実践 |
| Publication Title | Bulletin of Graduate School of Education, Okayama University |
| Published Date | 2018-11-28 |
| Volume | volume169 |
| Start Page | 47 |
| End Page | 56 |
| ISSN | 1883-2423 |
| language | Japanese |
| File Version | publisher |
| NAID | 120006543387 |
| JaLCDOI | 10.18926/bgeou/56364 |
|---|---|
| Title Alternative | Development of Interactive Learning Material for Internal Stress of a Bending Beam |
| FullText URL | bgeou_169_039_045.pdf |
| Author | Irie, Takashi| Naito, Kenji| |
| Abstract | 材料力学は工学初心者にとって理解が容易な分野であるとは言い難い。例えば，中学校技術科教員を目指す学生で，片持ちはりに力を加えた場合にどのような内部応力が発生するのか正しく理解しているものは少ない。本研究では，仮想空間に呈示された片持ちはりに対して，学習者が三次元力覚呈示装置を介して接触し，自ら力を加えて変形させたときの内部応力分布を視覚的に確認できる教材を開発した。内部応力の算出には有限要素法の弾性二次元解析を用いた。自然な力覚呈示には1ms以下の周期が必要とされるが，有限要素法は要素数（節点数）とともに計算時間が増加する。本研究では要素数（節点数）と計算時間の関係を明らかにした上で，力覚呈示の条件を満たす仕様を決定した。結果として十分な分解能を持つ分割要素を組み込んだ教材においても，要求される計算速度を達成できることが確認された。 |
| Keywords | はりの曲げ 内部応力 有限要素法 教材 力覚デバイス |
| Publication Title | Bulletin of Graduate School of Education, Okayama University |
| Published Date | 2018-11-28 |
| Volume | volume169 |
| Start Page | 39 |
| End Page | 45 |
| ISSN | 1883-2423 |
| language | Japanese |
| File Version | publisher |
| NAID | 120006543386 |
| JaLCDOI | 10.18926/bgeou/56361 |
|---|---|
| Title Alternative | Developing a Procedure for Researcher’s Cooperation with Kindergarten Staff to Construct Curricula and Annual Guidance Plans for Standard Curriculum Management |
| FullText URL | bgeou_169_001_014.pdf |
| Author | Yokomatsu, Tomoyoshi| |
| Abstract | 2018 年度から，わが国の幼稚園には，三つの側面をもつ本格的なカリキュラム・マネジメントが導入されている。このカリキュラム・マネジメントを実現するためには，国の教育課程基準の実現と特色のあるカリキュラム創りを可能にする，自園の保育の目標・ねらい・内容の連関性を確保することが，不可欠になる。本稿では，本格的なカリキュラム・マネジメントを実現できる実効のある保育目標をすでに明確化している２私立幼稚園において，アクション・リサーチを実施して，このカリキュラム・マネジメントを実現できる教育課程及び年間指導計画を編成・作成するための研究者の協働手順を開発している。 |
| Keywords | カリキュラム・マネジメント 幼稚園 教育課程 年間指導計画 研究者 協働 |
| Publication Title | Bulletin of Graduate School of Education, Okayama University |
| Published Date | 2018-11-28 |
| Volume | volume169 |
| Start Page | 1 |
| End Page | 14 |
| ISSN | 1883-2423 |
| language | Japanese |
| File Version | publisher |
| NAID | 120006543383 |
| JaLCDOI | 10.18926/56347 |
|---|---|
| Title Alternative | Is there a Rupture in Merleau-Ponty's Philosophy? : An examination of secondary literature on Merleau-Ponty's theory of expression |
| FullText URL | hss_046_093_105.pdf |
| Author | Tanaka, Yusuke| |
| Publication Title | Journal of Humanities and Social Sciences |
| Published Date | 2018-11-26 |
| Volume | volume46 |
| Start Page | 93 |
| End Page | 105 |
| ISSN | 1881-1671 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2018 岡山大学大学院社会文化科学研究科 |
| File Version | publisher |
| NAID | 120006540164 |
| JaLCDOI | 10.18926/56345 |
|---|---|
| Title Alternative | Considering the Prevention of School Teachers' Scandals : Troubles and Confessions of a Committee Adviser |
| FullText URL | hss_046_065_071.pdf |
| Author | Tsukamoto, Chiaki| |
| Publication Title | Journal of Humanities and Social Sciences |
| Published Date | 2018-11-26 |
| Volume | volume46 |
| Start Page | 65 |
| End Page | 71 |
| ISSN | 1881-1671 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2018 岡山大学大学院社会文化科学研究科 |
| File Version | publisher |
| NAID | 120006540162 |
| JaLCDOI | 10.18926/56344 |
|---|---|
| Title Alternative | Change of Ōtaue Related with Regional Transformation : A Case of Hida District, Yasugi City, Shimane Prefecture |
| FullText URL | hss_046_043_063.pdf |
| Author | Takano, Hiroshi| |
| Publication Title | Journal of Humanities and Social Sciences |
| Published Date | 2018-11-26 |
| Volume | volume46 |
| Start Page | 43 |
| End Page | 63 |
| ISSN | 1881-1671 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2018 岡山大学大学院社会文化科学研究科 |
| File Version | publisher |
| NAID | 120006540161 |
| JaLCDOI | 10.18926/56341 |
|---|---|
| Title Alternative | Toward a J-Form Theory of Knowledge-Creating Firms |
| FullText URL | hss_046_001_011.pdf |
| Author | Fujii, Daiji| |
| Publication Title | Journal of Humanities and Social Sciences |
| Published Date | 2018-11-26 |
| Volume | volume46 |
| Start Page | 1 |
| End Page | 11 |
| ISSN | 1881-1671 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2018 岡山大学大学院社会文化科学研究科 |
| File Version | publisher |
| NAID | 120006540158 |
| FullText URL | PhysRevA_81_063623.pdf |
|---|---|
| Author | Huhtamaki, J. A. M.| Takahashi, M.| Simula, T. P.| Mizushima, T.| Machida, K.| |
| Note | This is an article published by American Physical Society| |
| Published Date | 2010-06-14 |
| Publication Title | Physical Review A |
| Volume | volume81 |
| Issue | issue6 |
| Publisher | American Physical Society |
| Start Page | 063623 |
| ISSN | 24699926 |
| NCID | AA10764867 |
| Content Type | Journal Article |
| language | English |
| OAI-PMH Set | 岡山大学 |
| File Version | publisher |
| DOI | 10.1103/PhysRevA.81.063623 |
| Web of Science KeyUT | 000278719500005 |
| Related Url | isVersionOf https://doi.org/10.1103/PhysRevA.81.063623 |
| FullText URL | PhysRevB_97_094525.pdf |
|---|---|
| Author | Terashima, K.| Paris, E.| Simonelli, L.| Salas-Colera, E.| Puri, A.| Wakita, T.| Yamada, Y.| Nakano, S.| Idei, H.| Kudo, K.| Nohara, M.| Muraoka, Y.| Mizokawa, T.| Yokoya, T.| Saini, N. L.| |
| Note | This is an article published by American Physical Society| |
| Published Date | 2018-09-28 |
| Publication Title | Physical Review B |
| Volume | volume98 |
| Issue | issue9 |
| Publisher | American Physical Society |
| Start Page | 094525 |
| ISSN | 24699950 |
| NCID | AA11187113 |
| Content Type | Journal Article |
| language | English |
| OAI-PMH Set | 岡山大学 |
| File Version | publisher |
| DOI | 10.1103/PhysRevB.98.094525 |
| Web of Science KeyUT | 000446178800008 |
| Related Url | isVersionOf https://doi.org/10.1103/PhysRevB.98.094525 |
| FullText URL | mjou_061_187_198.pdf |
|---|---|
| Author | Rashid, M.H.M.| |
| Abstract | A Banach space operator satisfies property (Bw) if the complement of its B-Weyl spectrum in its the spectrum is the set of finite multiplicity isolated eigenvalues of the operator. Property (Bw) does not transfer from operators T and S to their tensor product T ⊗ S. We give necessary and /or sufficient conditions ensuring the passage of property (Bw) from T and S to T ⊗ S. Perturbations by Riesz operators are considered. |
| Keywords | property (Bw) SVEP tensor product |
| Published Date | 2019-01 |
| Publication Title | Mathematical Journal of Okayama University |
| Volume | volume61 |
| Issue | issue1 |
| Publisher | Department of Mathematics, Faculty of Science, Okayama University |
| Start Page | 187 |
| End Page | 198 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | Copyright©2019 by the Editorial Board of Mathematical Journal of Okayama University |
| FullText URL | mjou_061_173_186.pdf |
|---|---|
| Author | Sato, Yuichiro| |
| Abstract | This paper gives, in generic situations, a complete classification of ruled minimal surfaces in pseudo-Euclidean space with arbitrary index. In addition, we discuss the condition for ruled minimal surfaces to exist, and give a counter-example on the problem of Bernstein type. |
| Keywords | minimal surface ruled surface pseudo-Euclidean space |
| Published Date | 2019-01 |
| Publication Title | Mathematical Journal of Okayama University |
| Volume | volume61 |
| Issue | issue1 |
| Publisher | Department of Mathematics, Faculty of Science, Okayama University |
| Start Page | 173 |
| End Page | 186 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | Copyright©2019 by the Editorial Board of Mathematical Journal of Okayama University |
| FullText URL | mjou_061_167_172.pdf |
|---|---|
| Author | Brown, Stephen C.| Davis, Chad T.| |
| Abstract | Due to a theorem of Dedekind, factoring ideals generated by prime numbers in number fields is easily done given that said prime number does not divide the index of the field. In this paper, we determine the prime ideal factorizations of both 2 and 3 in cyclic quartic fields whose index is divisible by one of or both of these primes. |
| Keywords | Cyclic quartic field Prime ideal factorization |
| Published Date | 2019-01 |
| Publication Title | Mathematical Journal of Okayama University |
| Volume | volume61 |
| Issue | issue1 |
| Publisher | Department of Mathematics, Faculty of Science, Okayama University |
| Start Page | 167 |
| End Page | 172 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | Copyright©2019 by the Editorial Board of Mathematical Journal of Okayama University |
| FullText URL | mjou_061_159_166.pdf |
|---|---|
| Author | Tasaka, Fuminori| |
| Abstract | A 2-block of a finite group having a Klein four hyperfocal subgroup has the same number of irreducible Brauer characters as the corresponding 2-block of the normalizer of the hyperfocal subgroup. |
| Keywords | group theory modular representation hyperfocal subgroup |
| Published Date | 2019-01 |
| Publication Title | Mathematical Journal of Okayama University |
| Volume | volume61 |
| Issue | issue1 |
| Publisher | Department of Mathematics, Faculty of Science, Okayama University |
| Start Page | 159 |
| End Page | 166 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | Copyright©2019 by the Editorial Board of Mathematical Journal of Okayama University |
