著者

田村 智樹 太田 光浩 児玉 淳一 吉田 豊

出版者

一般社団法人資源・素材学会

雑誌

Journal of MMIJ (ISSN:18816118)

巻号頁・発行日

vol.128, no.2, pp.65-71, 2012-01-25 (Released:2013-06-26)

参考文献数

14

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Recently, old narrow tunnels are reused by widening their sections for economic efficiency. New design concept will be required in their construction because excavation damaged zone (EDZ) might be already formed around old tunnels. Especially, estimation of EDZ extent is necessary for safe construction and stability assessment of a widening tunnel. In this study, EDZ around an old tunnel constructed in the Neogene soft rock seventy years ago was estimated based on P-wave velocity and observation of the face during widening. Deformation caused by widening the old tunnel was also measured. It was found that EDZ estimated by reduction in P-wave velocity was in good agreement with that estimated by observation of the face. It was also found that deformation of the widening tunnel was much less than that of either the old tunnel or a new tunnel constructed near the widening tunnel. In the widening tunnel, most of EDZ had been excavated and non-damaged zone outer side of the EDZ had been little excavated. It can be expected that deformation of a widening tunnel is little when the section size of that is almost equal to extent of EDZ.

著者

佐藤 雄隆 金子 俊一 坂上 勝彦

出版者

公益社団法人 精密工学会

雑誌

精密工学会誌 (ISSN:09120289)

巻号頁・発行日

vol.77, no.12, pp.1121-1124, 2011-12-05 (Released:2012-06-05)

参考文献数

12

著者

園生 智弘 徳重 真一 田中 真生 前川 理沙 椎尾 康

出版者

一般社団法人 日本内科学会

雑誌

日本内科学会雑誌 (ISSN:00215384)

巻号頁・発行日

vol.101, no.1, pp.161-163, 2012 (Released:2013-04-11)

参考文献数

9

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Crowned dens syndrome(CDS)は軸椎歯突起周囲の靭帯にピロリン酸カルシウム結晶が沈着し,発熱,頸部痛,炎症所見を示す急性関節炎で,高齢女性に好発する偽痛風の一型である.2症例は72歳女性と31歳女性,いずれも頸部痛,炎症反応の上昇を伴った.頸椎単純CTとその再構成画像で歯突起周囲靭帯の石灰化を認めCDSと診断.非ステロイド性抗炎症薬投与により,自覚症状と炎症所見の消失をみた.炎症所見を伴う頸部痛では本疾患を念頭におき,CTで石灰化の有無を検討する必要がある.

著者

上瀬 由美子 堀野 緑

出版者

一般社団法人 日本教育心理学会

雑誌

教育心理学研究 (ISSN:00215015)

巻号頁・発行日

vol.43, no.1, pp.23-31, 1995-03-30 (Released:2013-02-19)

参考文献数

17

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This study investigated psychological background for self-recognition need (Kamise, 1992) and actions of seeking information about the self. Two surveys were conducted and 960 young adults participated in total (655 participants for the first survey and 305 for the second). The results of the first survey showed that the confusion of ego-identity gave rise to the instability of self concept and invoked self -recognition need. The results of the second survey showed that the interdependent construal of self preceded the instability of self concept and was related to the arousal of self-recognition need. In addition, after their self-recognition need being raised, the participants initiated actions of seeking self-information. Moreover, both the interdependent construal of self and the tendency of dependence on others in decision making were related to the action of seeking information about self.

著者

福田 正

出版者

一般社団法人 電気学会

雑誌

電氣學會雜誌 (ISSN:00202878)

巻号頁・発行日

vol.94, no.9, pp.801-804, 1974-09-20 (Released:2008-11-20)

参考文献数

22

著者

倉橋 節也

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.25, no.4, pp.4_252-4_260, 2008-10-28 (Released:2008-11-30)

被引用文献数

1

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本研究では,中国の家系記録「族譜」をもとに,科挙合格者を多く輩出したひとつの家系を約500年に渡ってエージェント技術を用いて分析を行った.家系ネットワークと個人のプロファイルデータをそれぞれ隣接行列と属性行列として表現し,実プロファイルデータを目的関数とする,マルチエージェントモデルによる逆シミュレーションを実施した.その結果,家庭内において子供への文化資本の伝達には,祖父と母が大きな影響を持つことがわかり,家族が維持する規範システムの一部を発見できた.本モデルによって,逆シミュレーション手法を用いたエージェントベースモデルが歴史学や人類学の分野において,新たな知識の発見に貢献できることを示した.

著者

蝋山 朋雄

出版者

The Ornithological Society of Japan

雑誌

鳥 (ISSN:00409480)

巻号頁・発行日

vol.15, no.71, pp.40-44, 1958-09-30 (Released:2009-02-26)

参考文献数

5

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Many studies on the spatial distribution of insect populations have been made by various workers. But in bird populations as well as other higher animals it is not easy to determine their spatial distribution by fitting them to a theoretical distribution. The territory mapping method, however, makes this possible.If all individual birds seen or heard in a sample area are plotted on a map and several census trips are repeatedly made, number of groups of spots which indicate the location of the individuals and their territories will appear on a composite map. If the population density is so high that the territories are distributed all over the sample area, Neyman's type A contageous distribution with two parameters theoretically seem to realize in the spatial distribution of these spots. The observed distribu-tion obtained with respect to Emberiza spodocephala and Anthus hodgsoni apparently fitted the theoretical one.The mean area occupied by a group of spots which is equivalent to the mean size of a territory was obtained by calculating one of the three biological constants of Neyman's type A distribution.When, again, the population density is high and, accordingly, the distance between the nearest neighbouring territories is very short, the distribution of the territories in a sample area will be expected to be even, not random. This expectation was justified by the fact that the Poisson index of dispersion in the distribution of the geometrical centres of territories was always smaller than 1. The index, however, was not always significantly different from 1. This means that the distribution of territories in high population density would be essentially even, but, in some cases, the Poisson type apparently appeared as a result of unevenness of the environment which probably disturbed the even distribution of the territories.

著者

谷口 孝喜

出版者

日本ウイルス学会

雑誌

ウイルス (ISSN:00426857)

巻号頁・発行日

vol.62, no.1, pp.87-96, 2012-06-25 (Released:2013-05-09)

参考文献数

53

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2006年に2種のヒトロタウイルスワクチン(RotarixとRotaTeq)のすぐれた有効性と安全性を示す臨床試験成績が報告されて以来,ロタウイルスワクチンに対する関心は大いに高まった.これらのワクチンは100ヵ国以上で認可され,約30ヵ国で定期接種されている.防御能は期待以上であり,重症ロタウイルス下痢症乳児の大幅な減少につながった.わが国においても,昨年11月にRotarixの投与が開始され,RotaTeqについても間もなく開始される.これら2種のヒトロタウイルスワクチンの組成,特徴,実際の効果について記載し,腸重積,感染防御の機構,ワクチン株の排泄の意味など,問題点を含めた今後の展望についてまとめた.

著者

長谷川 尭史 小川 貴弘 渡邉 日出海 長谷山 美紀

出版者

一般社団法人 映像情報メディア学会

雑誌

映像情報メディア学会誌 (ISSN:13426907)

巻号頁・発行日

vol.66, no.7, pp.J240-J250, 2012 (Released:2012-06-25)

参考文献数

15

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This paper presents a support vector data description (SVDD)-based method for finding new benthic species from microscopic images and its application to taxonomy position estimation. First, the proposed method generates hyperspheres that represent taxonomic species taxa of known species and enables automatic species classification. Furthermore, weight estimation of visual features based on multiple kernel learning (MKL) is used in this approach to realize automatic weighting of categorical traits that are traditionally determined by taxonomists. Next, based on the traditional taxonomic classification scheme, the proposed method merges the hyperspheres of similar species and generates new hyperspheres that represent ultra-species taxa in higher hierarchies. Then, from the obtained results, a new decision tree, whose nodes are hyperspheres of species taxa and ultra-species taxa, is constructed. By using this decision tree, new benthic species can be found from target samples, and their taxonomic positions can also be estimated.

著者

Katsuki Kobayashi Takahiro Ogawa Miki Haseyama

出版者

映像情報メディア学会

雑誌

ITE Transactions on Media Technology and Applications (ISSN:21867364)

巻号頁・発行日

vol.1, no.4, pp.333-342, 2013 (Released:2013-10-01)

参考文献数

24

被引用文献数

5

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This paper presents a new evaluation criterion for visualization of image search results based on the feature integration theory. This criterion is derived by combining two elements, visual saliency on visualization and grouping degree of similar images. Visual saliency, which is calculated from the feature integration theory, on visualization of image search results enables representation of users' attention, which is closely related to the effectiveness of finding images. Furthermore, since users perceive similar images that are close to each other as one group, grouping degree of similar images enables evaluation of the effectiveness when users find images similar to a desired image. Therefore, by combining visual saliency on visualization and grouping degree of similar images, we can derive the novel criterion and evaluate the effectiveness of visualization of image search results.

著者

Sho Takahashi Miki Haseyama

出版者

映像情報メディア学会

雑誌

ITE Transactions on Media Technology and Applications (ISSN:21867364)

巻号頁・発行日

vol.1, no.3, pp.220-225, 2013 (Released:2013-07-01)

参考文献数

13

被引用文献数

1 2

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An Active grid-based method for estimating pass regions from broadcast soccer videos is presented in this paper. It is assumed that the pass region has a high probability of the pass succeeding. In soccer matches, players discover pass regions based on previous and current player positions. In conventional methods, pass regions are estimated by applying Active Net to only a single frame of a soccer video. In the proposed method, Active grid is applied to three-dimensional data by which frames of the soccer video are connected with the temporal dimension. The proposed method then realizes robust estimation of pass regions based on multiple frames of player positions. The proposed method was applied to actual TV programs to verify its effectiveness.

著者

Soh Yoshida Hiroshi Okada Takahiro Ogawa Miki Haseyama

出版者

映像情報メディア学会

雑誌

ITE Transactions on Media Technology and Applications (ISSN:21867364)

巻号頁・発行日

vol.1, no.3, pp.237-243, 2013 (Released:2013-07-01)

参考文献数

19

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This paper presents a new method to improve performance of SVM-based classification, which contains a target object detection scheme. The proposed method tries to detect target objects from training images and improve the performance of the image classification by calculating the hyperplane from the detection results. Specifically, the proposed method calculates a Support Vector Machine (SVM) hyperplane, and detects rectangular areas surrounding the target objects based on the distances between their feature vectors and the separating hyperplane in the feature space. Then modification of feature vectors becomes feasible by removing features that exist only in background areas. Furthermore, a new hyperplane is calculated by using the modified feature vectors. Since the removed features are not part of the target object, they are not relevant to the learning process. Therefore, their removal can improve the performance of the image classification. Experimental results obtained by applying the proposed methods to several existing SVM-based classification method show its effectiveness.

著者

Nobuyuki Yagi Norifumi Egami Naoki Shimidzu Miki Haseyama

出版者

映像情報メディア学会

雑誌

ITE Transactions on Media Technology and Applications (ISSN:21867364)

巻号頁・発行日

vol.1, no.1, pp.10-19, 2013 (Released:2013-01-01)

参考文献数

139

被引用文献数

2

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This paper presents a survey of research trends in broadcasting technology from production to distribution and from fundamentals to applications. It briefly reviews work being done on UHDTV, 3DTV, IPTV, hybrid broadcasting, transmission technology, audio-visual coding, image sensing devices, display devices, media accessibility, content production, metadata, and content management.

著者

Miki Haseyama Takahiro Ogawa Nobuyuki Yagi

出版者

映像情報メディア学会

雑誌

ITE Transactions on Media Technology and Applications (ISSN:21867364)

巻号頁・発行日

vol.1, no.1, pp.2-9, 2013 (Released:2013-01-01)

参考文献数

82

被引用文献数

4 28

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Research trends in new video retrieval based on image and video semantic understanding are presented in this paper. First, recent studies related to image and video semantic analysis are introduced to understand leading-edge multimedia retrieval technologies. Several works related to visualization interfaces for multimedia retrieval are also presented. Finally, trends in state-of-the-art studies and the future outlook are described.

著者

松下 宗洋 宮地 元彦 川上 諒子 岡本 隆史 塚本 浩二 中田 由夫 荒尾 孝 澤田 亨

出版者

一般社団法人日本体力医学会

雑誌

体力科学 (ISSN:0039906X)

巻号頁・発行日

vol.62, no.5, pp.375-381, 2013-10-01 (Released:2013-10-19)

参考文献数

29

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Several studies have shown that low cardiorespiratory fitness (CRF) or heavy alcohol consumption is risks of total or certain types of cancer death. However, the combined influence of CRF and drinking habits on total cancer mortality is not clear. The purpose of this study was to investigate the joint effect of CRF and drinking habits on total cancer mortality among Japanese men. We evaluated the CRF and drinking habits on risk of total cancer mortality in 8,760 Japanese men (age: 19-59 yr) who were given a submaximal exercise test, a medical examination test, and questionnaires on their health habits. CRF was measured using a cycle ergometer test, and the men were classified into two categories by CRF levels based on the reference value of CRF (R-CRF) in “Physical Activity Reference for Health Promotion 2013” (Under R-CRF and Over R-CRF). Also, the men were assigned to Non Drinking, Moderate Drinking, and Heavy Drinking categories. There were 178 cancer deaths during the 20-yr follow-up period. Relative risk and 95% confidence intervals for total cancer mortality were obtained using the Cox proportional hazards model while adjusting for age, body mass index, systolic blood pressure, and smoking habits. Using the Under R-CRF & Heavy Drinking group as reference, the relative risk and 95% confidence intervals were 0.37 (0.16–0.85) for the Over R-CRF & Non Drinking group. This result suggests that Japanese male with a high CRF and a low drinking habit have a lower risk of total cancer mortality.

著者

Hisamitsu Akiba Y-h. Taguchi

出版者

一般社団法人 情報処理学会

雑誌

IPSJ Transactions on Bioinformatics (ISSN:18826679)

巻号頁・発行日

vol.1, pp.35-41, 2008 (Released:2008-11-28)

参考文献数

12

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The Barcode of Life (BOL) project aims to identify species with no other information than DNA sequence. We assume that BOL includes information on higher taxa. In the present study, we compute nonmetric distance from BOL barcodes by using rank order of pairwise distance for 3 distinct examples, namely, Ant Diversity in Northern Madagascar, Survey of Chelicerates, and Birds of North America. This enables us to recognize higher taxa, i.e., genus, family, and order, more easily. For example, the ratio of mean inner taxa nonmetric distance to the intertaxa distance is smaller than that for raw (metric) distance. Furthermore, for most pairs of higher taxa, the mean intertaxa distance is more than twice larger than intrataxa distances. The nonmetric multidimensional scaling method enables to discriminate higher taxa compared to tree construction by the neighbor-joining method or the maximum parsimony method with raw distance measure, when each species is embedded into more than 40 dimensional space with an accuracy of 90% even after leave-one-out-cross-validation.

著者

渡辺 哲 亀井 克彦

出版者

日本医真菌学会

雑誌

Medical Mycology Journal (ISSN:21856486)

巻号頁・発行日

vol.54, no.2, pp.103-104, 2013 (Released:2013-06-11)

参考文献数

4

著者

佐藤 明恵 中嶋 洋子

出版者

公益社団法人 日本栄養・食糧学会

雑誌

日本栄養・食糧学会誌 (ISSN:02873516)

巻号頁・発行日

vol.66, no.1, pp.25-33, 2013 (Released:2013-02-22)

参考文献数

36

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Znの不足がラード食(LD)と魚油食(FD)の嗜好性に及ぼす影響を調べた。4週齢のオスFischer344系ラットを1群16匹ずつの4群に分け,それぞれ-ZnLD,-ZnFD,+ZnLD,+ZnFDの飼料で3週間飼育後,各群6匹ずつを解剖した。残りの-Zn群のラットには-ZnLDと-ZnFDを,+Zn群のラットには+ZnLDと+ZnFDの飼料を同時に与えて3週間選択摂取させた後解剖した。-Zn群は+Zn群に比べて血漿Zn濃度,飼料摂取量,体重は有意に低く,血漿・肝臓脂質濃度も-Zn群が有意に低かった。+Zn群のラットは両群ともn-6/n-3がほぼ3となるようにLDとFDを選択摂取したが,-Zn群のn-6/n-3はLD群で1.9,FD群で6.6となった。したがって,+Zn群は一定のn-6/n-3で必須脂肪酸を摂取する能力を有しているが,Znが不足するとこの能力が消失すると推察された。

著者

榛澤 文恵 渕上 達夫 吉野 弥生 羽生 政子 今井 由生 齋藤 勝也 阿部 修 橋本 光司 稲毛 康司 葛谷 光隆

出版者

日本大学医学会

雑誌

日大医学雑誌 (ISSN:00290424)

巻号頁・発行日

vol.67, no.5, pp.304-308, 2008-10-01 (Released:2011-11-28)

参考文献数

16

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ロタウイルス感染症に伴い第 3 病日に意識障害を認めた 5 歳の男児例を経験した.便中ロタウイルス抗原が陽性で,髄液細胞数は正常だが,頭部 CT で脳浮腫を,脳波では全般性高振幅徐波を認め,ロタウイルス感染に関連する急性脳症と考えた.ロタウイルス関連脳症の頻度は少なく,その病態生理は明らかではない.ロタウイルス関連脳炎・脳症の発症には本例のようにけいれんを伴わないことがあり,診断には注意を要すると考えた.

著者

柿木 康孝 長瀬 政子 高木 奈央 内村 大祐 佐藤 進一郎 高本 滋

出版者

一般社団法人 日本輸血・細胞治療学会

雑誌

日本輸血細胞治療学会誌 (ISSN:18813011)

巻号頁・発行日

vol.59, no.4, pp.593-600, 2013 (Released:2013-08-30)

参考文献数

33

被引用文献数

1 1

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発端者(MT)は74歳男性で多発性骨髄腫の診断.カラム凝集法(Ortho Auto Vue)にて抗Aに対する反応が部分凝集(mixed-field agglutination,mf)を示した.フローサイトメトリー法(FCM法)では,A型血球集団とO型血球集団にピークをもつ2峰性のモザイクパターンを示した(A型血球72.6%,O型血球27.4%).血清A型糖転移酵素活性は256倍(対照256倍)と正常で,抗Aに対する非凝集赤血球を用いた抗A吸着解離試験は陰性であった.輸血歴はなく,双生児でもなかった.骨髄染色体は正常核型であった.これらの検査結果は治療により多発性骨髄腫が完全寛解となった後も変わらなかった.発端者の姉(MH)は77歳女性で高血圧にて治療を,発端者の弟(YT)は71歳男性で糖尿病にて治療を受けていた.どちらの症例もABO血液型検査は発端者と同様のmfを示した.FCM法でも同様のモザイクパターンを示したが,A型血球とO型血球の割合は姉(MH)ではA型血球23.6%,O型血球76.4%で,弟(YT)ではA型血球39.3%,O型血球60.7%であった.血清A型糖転移酵素活性も正常であった.同胞3例のABO遺伝子解析(Exon6,7領域のDNAシークエンス)では,発端者の遺伝子型はA101/O02で,姉はA101/O02,弟はA101/O01であり,A遺伝子型に関しては3例とも共通のA101で,塩基配列の置換・欠失を認めなかった.以上の所見より同胞3例をAmosと判定した.今回の症例はAmosの遺伝的要因をA型亜型と対比して考える上で示唆に富むと考えられた.