9 0 0 0 OA 結び目と曲面

著者
小沢 誠
出版者
一般社団法人 日本数学会
雑誌
数学 (ISSN:0039470X)
巻号頁・発行日
vol.67, no.4, pp.403-423, 2015-10-26 (Released:2017-10-27)
参考文献数
206
著者
斉藤 一哉
出版者
一般社団法人 日本応用数理学会
雑誌
応用数理 (ISSN:24321982)
巻号頁・発行日
vol.26, no.1, pp.9-14, 2016 (Released:2016-07-27)
参考文献数
18

This study presents a new method for designing self-deploying origami using the geometrically misaligned creases. In this method, some facets are replaced by “holes” such that the systems become a 1-DOF mechanism. These perforated origami models can be folded and unfolded similar to rigidfoldable(without misalignment) models because of their DOF despite the existence of the misalignment. Focusing on the removed facets, the holes will deform according to the motion of the frame of the remaining parts. In the proposed method, these holes are filled with elastic parts and store elastic energy for self-deployment. First, a new extended rigid-folding simulation technique is proposed to estimate the deformation of the holes. Next by using the above technique, the proposed method is applied on arbitrary-size quadrilateral mesh origami. Finally, by using the finite-element method, the authors conduct numerical simulations and confirm the deployment capabilities of the models.
著者
Zhongyu Ren Cong Huang Haruki Momma Yufei Cui Kaijun Niu Shota Sugiyama Masakazu Nanno Ryoichi Nagatomi
出版者
Japan Epidemiological Association
雑誌
Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日
pp.JE20170029, (Released:2018-04-21)
参考文献数
31
被引用文献数
5

Background: There is scarce epidemiological evidence regarding the relationships of the consumption of different types of vegetables or fruits with change in skeletal muscle strength. We prospectively examined the relationships among Japanese adults, using handgrip strength to assess skeletal muscle strength.Methods: A 3-year study was carried out with 259 Japanese adults who were 22–68 years of age. The frequency of consumption of different types of vegetables or fruits were obtained using a validated self-administered dietary history questionnaire. Handgrip strength was measured with a handheld digital Smedley dynamometer.Results: After adjustment for confounding factors, the mean change in handgrip strength in participants stratified according to the level of tomato and tomato product consumption at baseline were −3.2 (95% confidence interval [CI], −4.0 to −2.3) for <1 time/week, −2.7 (95% CI, −3.6 to −1.8) for 1 time/week, −1.6 (95% CI, −2.5 to −0.8) for 2–3 times/week, and −1.7 (95% CI, −2.8 to −0.7) for ≥4 times/week, (P for trend = 0.022). However, the significant relationships of consumption of other types of vegetables and different types of fruits with change in handgrip strength were not observed.Conclusion: Higher consumption of tomato and tomato product at baseline was significantly associated with reduced decline in handgrip strength among Japanese adults over a 3-year follow-up period. This study suggests that consumption of tomato and tomato product could be protective against the decline in skeletal muscle strength associated with aging.
著者
神尾 道也
出版者
日本比較生理生化学会
雑誌
比較生理生化学 (ISSN:09163786)
巻号頁・発行日
vol.29, no.1, pp.11-17, 2012 (Released:2012-02-17)
参考文献数
44

殻を持たない軟体動物であるアメフラシの仲間は,体が軟らかくて傷つきやすい上に,動きが緩慢であることから,皮膚または皮膚からの分泌物に含まれた物質による化学防御により捕食者から身を守っていると考えられる。さらに,アメフラシは化学防御物質を多く含む紅藻類や藍藻類を好んで食べるので,これらの植物の持つ物質を自分の化学防御の原料として用いるのだろうと考えられてきた。しかしながら,この「皮膚に含まれる海藻由来の2次代謝物による防御」仮説を満足に支持するような実験結果は得られておらず,研究者間で意見が分かれている。また,アメフラシは攻撃を受けた時に紫色の液体を放出することから,この液体による煙幕で捕食者の視界を撹乱して逃げる,または,この液体に含まれる化合物で捕食者の味覚や嗅覚などの化学感覚に働きかけて攻撃をやめさせる,と考えられてきたが,この「紫色の液体放出による防御」説に関してもまた,はっきりと支持するような実験結果が得られてこなかった。それが,近年になって紫色の液体を構成する紫色のインクと白色のオパリンという二つの分泌物に含まれる化学防御物質群の解析が進み,その役割と仕組みが徐々に明らかにされてきた。これらの化合物は捕食者の化学感覚に働きかけて防御物質として働くだけでなく,同種個体に対しては警報物質として働く。本稿では最近明らかにされてきたアメフラシの多重の化学防御機構,皮膚に含まれる2次代謝物とインクとオパリンの成分として放出される化合物群の正体とその役割について概説する。
著者
The Examination Committee of Criteria for `Obesity Disease' in Japan Japan Society for the Study of Obesity
出版者
The Japanese Circulation Society
雑誌
Circulation Journal (ISSN:13469843)
巻号頁・発行日
vol.66, no.11, pp.987-992, 2002 (Released:2002-10-25)
参考文献数
41
被引用文献数
655 1356

The present study was designed to establish adequate criteria for categorizing `obesity disease' in Japan in relation to obesity-related complications. The subjects were 1,193 Japanese subjects (775 men, 418 women; age: 20-84 years old, body mass index (BMI): 14.9-56.4 kg/m2) including subjects undergoing a health examination and obese subjects visiting an obesity clinic. Visceral fat area (VFA) and subcutaneous fat area (SFA) were determined by computed tomography (CT) at the umbilical level. Anthropometric parameters, including BMI, waist circumference (W), waist/hip circumference (W/H), ratio and waist circumference/body height (W/BH) ratio, were measured. Hyperglycemia, dyslipidemia, and hypertension were evaluated as obesity-related complications. The relationship between each parameter and the prevalence of the complications was investigated. The number of complications increased in accordance with BMI and the average value was greater than 1.0 at a BMI of 25. The best combination of the sensitivity and specificity for detecting subjects with multiple risk factors was a BMI of 25. BMI showed a close positive correlation with SFA (r=0.82), even for BMI ≥25 (r=0.77), but had a weaker correlation with VFA (r=0.54). The obese subjects with a BMI ≥25 had no correlation between BMI and VFA because of the wide individual variation of VFA. The number of disorders was greater than 1.0 at 100 cm2 of VFA and the best combination of the sensitivity and specificity for determining subjects with multiple risk factors was 100 cm2 of VFA. Between the simple anthropometric values and measurement of VFA, it was proven that W had the closest relationship with VFA in both men (r=0.68) and women (r=0.65). The regression line obtained from simple correlation analyses indicated that the W corresponding to 100 cm2 of VFA was 84.4 cm in men and 92.5 cm in women. These data suggest that obesity is adequately specified as a BMI ≥25 in Japan where the prevalence and degree of obesity remains mild. It is reasonable to establish the cut-off point of VFA at 100 cm2 as indicative of the risk of obesity-related disorders and a waist circumference of 85 cm in men and 90 cm in women approximates to this visceral fat mass. (Circ J 2002; 66: 987 - 992)
著者
榊 和良
出版者
日本南アジア学会
雑誌
南アジア研究 (ISSN:09155643)
巻号頁・発行日
vol.2010, no.22, pp.277-284, 2010-12-15 (Released:2011-09-06)
参考文献数
19
著者
Ryutaro Matsugaki Toru Akebi Hideo Shitama Futoshi Wada Satoru Saeki
出版者
The Society of Physical Therapy Science
雑誌
Journal of Physical Therapy Science (ISSN:09155287)
巻号頁・発行日
vol.30, no.2, pp.262-265, 2018 (Released:2018-02-22)
参考文献数
18
被引用文献数
6

[Purpose] To verify the immediate effects of exercise therapy on cancer-related fatigue (CRF) in cancer patients. [Subjects and Methods] Eighteen cancer patients who performed exercise therapy targeting a rating of 4 (somewhat strong) on the Borg category-ratio scale (CR-10) were enrolled. CRF was evaluated using the Cancer Fatigue Scale (CFS). CFS was evaluated in clinical practice immediately before and after exercise therapy on the 1st or 2nd day of physiotherapy for CRF management. CFS scores before and after exercise were compared to determine how CRF changed due to exercise therapy. [Results] CFS physical, CFS affective, CFS cognitive, and CFS total all decreased following exercise therapy, and the changes in CFS physical and CFS total were statistically significant. The effect sizes for CFS physical and CFS total were “medium”, and for CFS affective and CFS cognitive “small.” [Conclusion] These findings suggest that exercise therapy targeting a rating of 4 (somewhat strong) on the CR-10 can immediately reduce CRF in cancer patients.
著者
内山 正史
出版者
Japan Health Physics Society
雑誌
保健物理 (ISSN:03676110)
巻号頁・発行日
vol.31, no.2, pp.143-150, 1996 (Released:2010-02-25)
参考文献数
10
著者
Kenichi Otsuka Masayuki Tazawa Yoko Ibe Tomotaka Inoue Minori Kurosaki Kenji Shirakura Naoki Wada
出版者
北関東医学会
雑誌
北関東医学 (ISSN:13432826)
巻号頁・発行日
vol.68, no.1, pp.1-5, 2018-02-01 (Released:2018-04-05)
参考文献数
18
被引用文献数
3

Background: Vertebral compression fracture (VCF) is a major injury that occurs in elderly individuals. The aim of this study is to predict the functional outcomes of elderly female patients with acute VCF based on their nutritional status. Methods: A total of 69 female patients with acute VCF were included in the present study. The age, fracture location, body mass index, grasping power, the amount of the patient's daily nutritional intake, Mini-Mental State Examination (MMSE) score and nutritional status (determined from laboratory findings) were evaluated at the time of admission. After in-hospital rehabilitation, the patients were divided into two groups based on their motor Functional Independence Measure (mFIM) scores at the time of discharge. A multivariable logistic regression analysis was performed to identify factors that predicted the outcome. Results: The patients were divided into the high mFIM (score≥79, n=36) and the low mFIM (score<79, n=33) groups. The multivariate logistic regression analysis showed that the amount of the patient's nutritional intake and the MMSE score were associated with the outcome. Conclusions: he cognitive status and the amount of the patient's nutritional intake were associated with the prognosis of elderly women with acute VCF.
著者
Satoshi Katano Akiyoshi Hashimoto Katsuhiko Ohori Ayako Watanabe Remi Honma Rimi Yanase Tomoyuki Ishigo Takefumi Fujito Hirofumi Ohnishi Kazufumi Tsuchihashi Sumio Ishiai Tetsuji Miura
出版者
The Japanese Circulation Society
雑誌
Circulation Journal (ISSN:13469843)
巻号頁・発行日
pp.CJ-17-1202, (Released:2018-04-07)
参考文献数
39
被引用文献数
28

Background:Whether the short-term effect of cardiac rehabilitation (CR) in elderly patients with heart failure (HF) is influenced by nutritional status is uncertain, so the present study investigated the effect of nutritional status on functional recovery after CR in elderly HF inpatients.Methods and Results:We enrolled 145 patients admitted for treatment of HF who were aged ≥65 years and had a low functional status defined as a Barthel index (BI) score ≤85 points at the commencement of CR. Nutritional status was assessed by the Mini Nutritional Assessment Short Form (MNA-SF) and total energy intake per day. The primary endpoint was functional status determined by the BI score at discharge. The median CR period was 20 days (interquartile range: 14–34 days), and 87 patients (60%) were functionally dependent (BI score ≤85) at discharge. Multivariate logistic regression analysis showed that MNA-SF score (odds ratio [OR]: 0.76, P=0.02) and total energy intake at the commencement of CR (OR: 0.91, P=0.02) were independent predictors of functional dependence after CR. MNA-SF score ≤7 and total energy intake ≤24.5 kcal/kg/day predicted functional dependence at discharge with moderate sensitivity and specificity.Conclusions:MNA-SF score and total energy intake at the commencement of CR are novel predictors of the extent of functional recovery of elderly HF inpatients after in-hospital CR.
著者
高野 保真 岩崎 英哉 佐藤 重幸
出版者
日本ソフトウェア科学会
雑誌
コンピュータ ソフトウェア (ISSN:02896540)
巻号頁・発行日
vol.32, no.1, pp.1_253-1_287, 2015-01-26 (Released:2015-02-11)

関数型言語 Haskellは,遅延評価を標準とするプログラミング言語であり,近年注目を集めている.デファクトスタンダードの処理系である Glasgow Haskell Compiler(GHC)は多くの研究の基盤として用いられ,新しい言語概念など先進的な研究成果が取り入れられている.その一方で,GHCの実装は巨大で複雑になってきており,GHCに新機能を導入することは障壁が高くなってしまった.このような状況において,我々は実行時メモリの効率化を目指して,遅延オブジェクトを再利用する手法を提案し,GHCに実装してきた.我々が提案した手法は,コンパイル時にプログラム変換を行い,再利用対象とする遅延オブジェクトへの参照を単一にした上で,遅延オブジェクトを破壊的に書き換えて再利用する.その基本的な機構は既に先行論文において述べ,メモリ削減の効果も確認済みである.本論文は,再利用手法を実現するために考えられる各種手法の実装方法,および,それらの手法の得失・取捨選択に関する議論を詳細に行う.また,再利用手法の基本的な機構の実装で培った経験を生かし実装した,再利用手法の改善技法をいくつか提案する.それらの技法を導入することにより,実行時間に関するオーバヘッドを低く抑えることが可能であることを実験により確認した.最後に,GHCを研究の基盤に用いた経験より得られた遅延型関数型言語処理系に関する知見についても述べる.特に,GHCが Haskellで記述されていることは,処理系の拡張性に大きく貢献していることが分かった.
著者
徳永 勝士
出版者
国立研究開発法人 科学技術振興機構
雑誌
情報管理 (ISSN:00217298)
巻号頁・発行日
vol.60, no.12, pp.882-886, 2018-03-01 (Released:2018-03-01)
参考文献数
2

人類遺伝学あるいはゲノム医学分野においては,医学研究のみならずゲノム医療の発展のためにも,疾患遺伝子変異のデータ共有の重要性が高まっている。日本人類遺伝学会は,独自の簡易データベースを備えたオープンアクセスジャーナル「Human Genome Variation」を2014年から出版している。その構想から創刊まで,さらに現状と今後の課題を述べる。
著者
Tadasuke Ohnishi Mitsumasa Hida Yukio Nakamura Chikamune Wada
出版者
The Society of Physical Therapy Science
雑誌
Journal of Physical Therapy Science (ISSN:09155287)
巻号頁・発行日
vol.30, no.3, pp.474-478, 2018 (Released:2018-03-02)
参考文献数
23
被引用文献数
3

[Purpose] It is clinically important to accurately evaluate the alignment of hindfoot alignment from the body surface in weight-bearing position. In general, measurement is carried out using a goniometer, but the measurement with goniometer requires experience, and the reliability in this measurement is also in question. Therefore, it is necessary to establish a clinical measurement method to replace the goniometer. As a solution, we devised a hindfoot alignment measurement method with laser beam (HAML), which measures hindfoot alignment along the body surface using a laser beam. This study aimed to study the correlation between the measurement result along the body surface with laser or goniometer and that of radiography with regard to hindfoot alignment. [Subjects and Methods] Subjects included 23 individuals with knee osteoarthritis. Their hindfoot alignment using radiography and goniometry were measured. The correlation between the measurement result along the body surface with or without laser and radiography was investigated. [Results] The correlation between HAML and radiography was better than that between HAML and goniometry. [Conclusion] The correlation between radiography and HAML for measuring hindfoot alignment was good. This finding implies that HAML can be used as a screening test or epidemiological survey in regional medicine.