著者
酒向 貴子 川田 伸一郎 手塚 牧人 上杉 哲郎 明仁
出版者
国立科学博物館
雑誌
Bulletin of the National Museum of Nature and Science Series A Zoology (ISSN:18819052)
巻号頁・発行日
vol.34, no.2, pp.63-75, 2008-06

The distribution of latrines of the raccoon dog, Nyctereutes procyonoides, was examined from July 2006 to December 2007 in the Imperial Palace grounds, Tokyo, Japan. The raccoon dog is accustomed to defecate at fixed locations, forming holding latrines; thus the distribution of latrines is a good indicator of their abundance. The results suggest that the latrines are widely scattered in the study site, but are more dense in the Fukiage area, where an old-growth broad-leaved forest is established. The latrine sites are used more frequently from September to December, as the number of fresh feces increased in the autumnal season. To examine the seasonal food changes of the raccoon dogs, 10 pieces of feces from some latrines were collected every month and analyzed the indigestible contents in the sampled feces. The food items identified consisted of animal, plant and man-made materials, suggesting that the raccoon dogs were highly omnivorous. The animal materials found from the feces included mammals (4% of total feces), birds (37%), reptiles (2%), amphibians (3%), insects (95%), chilopods (56%), isopods (2%) and gastropods (12%). Invertebrates were the most abundand food item throughout the year. Three coleopteran families, the Carabidae, Staphylinidae and Scarabaeidae, accounted for a large proportion of the insects and they showed seasonal fluctuations. These suggest that the raccoon dogs fed on them as major animal food resources in the study site, and perhaps the seasonality is related to the temporal changes of availability of the insects. The majority of plant materials found in the feces was a variety of seeds, suggesting that the raccoon dogs fed on berries and fleshy fruits throughout the year. The occurrence of seeds decreased from March to April, which coincided with a low availability of fruits. The seeds found in feces were categorized into three types : (1) the short-term berry type including Prunus (Cerasus) spp., Moms spp., Rubus hirsutus and Machilus thunbergii, which occurred only a short term after their fruiting periods ; (2) the long-term berry type, including Celtis sinensis, Aphananthe aspera and Swida controversa, which occurred continuously for three or more months after the fruiting periods ; (3) the acorn type, including Castanopsis spp., Quercus spp. and Ginkgo biloba, which occurred in early spring (January to April) when the other fruits are scarce. The seasonal change of the three fruit types implies that the raccoon dogs consume the available fruits in relation to the successive fruiting periods. The proportion of artificial materials found in the feces was considerably lower than in previous studies carried out in the suburbs of Tokyo, suggesting that the raccoon dogs in the study site strongly depend on natural foods. Most of the natural food items were native to Japan since the past Edo period. Thus we conclude that the preservation of biodiversity in the Imperial Palace grounds was essential for the re-colonization by the raccoon dogs of the Tokyo metropolitan area after the 1970s.
著者
明仁 藍澤 正宏 池田 祐二 岸田 宗範 林 公義 中山 耕至 中坊 徹次
出版者
日本魚類学会
雑誌
魚類学雑誌 (ISSN:00215090)
巻号頁・発行日
pp.18-044, (Released:2019-04-05)
参考文献数
32

Hybrids of Rhinogobius biwaensis and Rhinogobius sp. BF were identified in the ponds of Sento Imperial Palace, Kyoto City, Japan, from microsatellite and mitochondrial DNA markers. Mitochondrial DNA analysis indicated that five of seven Rhinogobius specimens had R. biwaensis haplotypes, the remaining specimens having those of Rhinogobius sp. BF. In DAPC and STRUCTURE analyses based on microsatellite data, all specimens examined showed intermediate status between R. biwaensis and Rhinogobius sp. BF, the two species being considered to have formed a hybrid swarm in the ponds because genetically pure individuals of either were not found. This is the first report of recent hybridization under field conditions in Rhinogobius fishes from Japan, confirmed by nuclear and mitochondrial DNA data. Hybrid Rhinogobius specimens from the ponds had 5–17 predorsal scales, an intermediate range between those of non-hybrid R. biwaensis (0–6) and Rhinogobius sp. BF (11–20). However, in appearance they were more similar to R. biwaensis than Rhinogobius sp. BF, having bluish-white distal coloring anteriorly on the first and second dorsal fins, a reduced reddish longitudinal band on the anal fin, and lacking yellowish dorsal and posterior margins on the caudal fin. However, they differed from R. biwaensis in having a narrower white posterior caudal fin margin. Further morphological differentiation of the hybrid specimens was not apparent.
著者
明仁親王 目黒 勝介
出版者
The Ichthyological Society of Japan
雑誌
魚類学雑誌 (ISSN:00215090)
巻号頁・発行日
vol.22, no.3, pp.127-142, 1975-12-29 (Released:2010-06-28)
参考文献数
28

フタゴハゼGlossogobius giuris (Hamilton) と見なされていたウロハゼ属の1型は新種と認められたのでG.aureus (新称: コンジキハゼ) として記載した.本種の最も重要な特徴は孔器の配列にある.ウロハゼ属の他の種と比較し, その特徴を明らかにした.
著者
明仁 藍澤 正宏 池田 祐二 岸田 宗範 林 公義 中山 耕至 中坊 徹次
出版者
日本魚類学会
雑誌
魚類学雑誌 (ISSN:00215090)
巻号頁・発行日
2019

<p>Hybrids of <i>Rhinogobius biwaensis</i> and <i>Rhinogobius</i> sp. BF were identified in the ponds of Sento Imperial Palace, Kyoto City, Japan, from microsatellite and mitochondrial DNA markers. Mitochondrial DNA analysis indicated that five of seven <i>Rhinogobius</i> specimens had <i>R. biwaensis</i> haplotypes, the remaining specimens having those of <i>Rhinogobius</i> sp. BF. In DAPC and STRUCTURE analyses based on microsatellite data, all specimens examined showed intermediate status between <i>R. biwaensis</i> and <i>Rhinogobius</i> sp. BF, the two species being considered to have formed a hybrid swarm in the ponds because genetically pure individuals of either were not found. This is the first report of recent hybridization under field conditions in <i>Rhinogobius</i> fishes from Japan, confirmed by nuclear and mitochondrial DNA data. Hybrid <i>Rhinogobius</i> specimens from the ponds had 5–17 predorsal scales, an intermediate range between those of non-hybrid <i>R. biwaensis</i> (0–6) and <i>Rhinogobius</i> sp. BF (11–20). However, in appearance they were more similar to <i>R. biwaensis</i> than <i>Rhinogobius</i> sp. BF, having bluish-white distal coloring anteriorly on the first and second dorsal fins, a reduced reddish longitudinal band on the anal fin, and lacking yellowish dorsal and posterior margins on the caudal fin. However, they differed from <i>R. biwaensis</i> in having a narrower white posterior caudal fin margin. Further morphological differentiation of the hybrid specimens was not apparent.</p>
著者
明仁 坂本 勝一
出版者
The Ichthyological Society of Japan
雑誌
魚類学雑誌 (ISSN:18847374)
巻号頁・発行日
vol.36, no.1, pp.100-112, 1989
被引用文献数
1

The striped goby was characterized by having more than 50 scales in a longitudinal row and 2 black longitudinal bands from the head to the tail. It has been regarded as 1 species since Tomiyarna (1936) grouped several nominal species into one, <I>Tridentiger trigonocephalus</I> (Gill, 1858). But detailed study has revealed that it can be classified into 2 separate species, <I>T. trigonocephalus</I> and <I>Tridentiger bifasciatus</I> Steindachner, 1881, on the basis of the difference mainly in the forms of the sensory canals and pectoral fins and in the coloration. <I>T. trigonocephalus</I> has been collected from Hokkaido to Kyushu in Japan, and in Korea, China, and Hong Kong abroad. It has immigrated into both California, U.S.A., and New South Wales and Victoria, Australia. <I>T. bifasciatus</I> has been collected in the same area as <I>T. trigonocephalus</I> in Japan, and in the Soviet Union, Korea, China, and Taiwan abroad. Both species inhabit brackish and sea water with stony bottoms, and are often found in the same place. However, <I>T. trigonocephalus</I> has seldom been found in very dilute brackish water, and <I>T. bifasciatus</I> has not been found in undiluted sea water. The type specimen of <I>T. trigonocephalus</I> has not been found, but the identification to <I>T. trigonocephalus</I> was decided on the basis of the closeness of the numbers of the 2nd dorsal and anal fin rays to those of the original description, which were 14 and 13, respectively. In addition, the type specimen was collected in the port of Hong Kong, where the water is not diluted and is unlikely to be suitable as habitat for <I>T. bifasciatus</I>.
著者
明仁親王 目黒 勝介
出版者
The Ichthyological Society of Japan
雑誌
魚類学雑誌 (ISSN:18847374)
巻号頁・発行日
vol.34, no.4, pp.409-420, 1988

ロクラハゼ属の2種キマダラハゼ<I>Astrabe flavima-culata</I>とシマシロクラハゼ<I>A. fasciata</I>を新種として記載し, シロクラハゼ属の模式種であり, 今まで知られていた唯一の種であるシロクラハゼ<I>A. lactisella</I>についても前2種と比較して再記載した.キマダラハゼは日本産魚類大図鑑の中でキマダラハゼ<I>Astrabe sp</I>.として明仁親王 (1984) が解説を付したものである.キマダラハゼはシロクラハゼとは眼の上縁にある皮摺の上後部が突出しないこと, 縦列鱗数が少ないこと, 第1背鰭前方と腹部に鱗があること, 胸鰭基部を通る白色横帯の幅が狭いこと, 生時には胸鰭基部を通る白色横帯を除き, 暗褐色地に黄色模様が見られることによって区別される.シマシロクラハゼはシロクラハゼとは横列鱗数が少ないこと, 体側の鱗のある部分の幅が狭いこと, 胸鰭基部を通る白色横帯の幅が狭いこと, 第1背鰭前部から体の腹側に向かう白色横帯があることによって区別される.この度の標本の調査により, Snyder (1912) が記録した種子島産の<I>A. lactisella</I>はキマダラハゼであり, 本間・田村 (1972) が記録した佐渡島達者産のシロクラハゼはシマシロクラハゼであることが判明したので, これらの標本はそれぞれの種の副模式標本とした.また道津.塩垣 (1971) がシロクラハゼとして扱ったものの中, 標本を調べることが出来た鹿児島県馬毛島産のものはキマダラハゼであった.長崎県野母崎産の標本は図から判断するとシマシロクラハゼと考えられる.明仁親王 (1984) のシロクラハゼとキマダラハゼの解説は訂正しなければならない.
著者
明仁親王
出版者
文芸春秋
雑誌
文芸春秋
巻号頁・発行日
vol.77, no.10, pp.107-114, 1999-10
著者
明仁 坂本 勝一
出版者
日本魚類学会
雑誌
魚類学雑誌 (ISSN:00215090)
巻号頁・発行日
vol.36, no.1, pp.100-112, 1989-06-28 (Released:2011-02-23)
参考文献数
16
被引用文献数
3

The striped goby was characterized by having more than 50 scales in a longitudinal row and 2 black longitudinal bands from the head to the tail. It has been regarded as 1 species since Tomiyarna (1936) grouped several nominal species into one, Tridentiger trigonocephalus (Gill, 1858). But detailed study has revealed that it can be classified into 2 separate species, T. trigonocephalus and Tridentiger bifasciatus Steindachner, 1881, on the basis of the difference mainly in the forms of the sensory canals and pectoral fins and in the coloration. T. trigonocephalus has been collected from Hokkaido to Kyushu in Japan, and in Korea, China, and Hong Kong abroad. It has immigrated into both California, U.S.A., and New South Wales and Victoria, Australia. T. bifasciatus has been collected in the same area as T. trigonocephalus in Japan, and in the Soviet Union, Korea, China, and Taiwan abroad. Both species inhabit brackish and sea water with stony bottoms, and are often found in the same place. However, T. trigonocephalus has seldom been found in very dilute brackish water, and T. bifasciatus has not been found in undiluted sea water. The type specimen of T. trigonocephalus has not been found, but the identification to T. trigonocephalus was decided on the basis of the closeness of the numbers of the 2nd dorsal and anal fin rays to those of the original description, which were 14 and 13, respectively. In addition, the type specimen was collected in the port of Hong Kong, where the water is not diluted and is unlikely to be suitable as habitat for T. bifasciatus.
著者
土屋 明仁 宮寺 庸造 夜久 竹夫
出版者
一般社団法人電子情報通信学会
雑誌
電子情報通信学会技術研究報告. ET, 教育工学 (ISSN:09135685)
巻号頁・発行日
vol.101, no.41, pp.19-24, 2001-05-04
被引用文献数
1

URLの登録/再利用を行う際の問題として, URLは階層構造をなす分類項目に一意に類別されるが複数の内容を含むURLの類別が困難, URL相互の関連が欠落するなどがあげられる. 本研究では多変最解析の手法を用いて上記の問題点の解決を試みた. 開発にはクロスプラットフォーム, ネットワーク型のソフトウェア開発が比較的容易に行えるJAVA言語と, WWWブラウザにはNetscapeナビゲータを用いた. 新しいURLナビゲータではキーワードによるURLの意味付けが可能で, またURL相互の関連性が提示される. 利用者の思考状態に対応して動的に変化するURL集合を操作することによって, 思考活動に対して自然でURL相互の関連に基づいたウェブコンテンツの参照を支援できると考えられ, これまでにないURL資産の運用が実現できる可能性がある.
著者
杉田 公一 洲崎 春海 増田 成夫 周 明仁 野村 恭也
出版者
耳鼻咽喉科展望会
雑誌
耳鼻咽喉科展望 (ISSN:03869687)
巻号頁・発行日
vol.33, no.1, pp.47-53, 1990-02-15 (Released:2011-08-10)
参考文献数
8

Methods and findings of target image CT of olfactory clefts and ethmoid cells of the patients suffered from olfactory disturbance were presented with clinical cases, and the importance of target image CT was discussed. Scannings were made bidirectionary, coronary view and axial view. Five cases with olfactory disturbance such as parosmia, cacosmia, hyposnia caused by commoncold and anosmia caused by chronic sinusitis were presented. Anatomy of ethomoid cells and olfactory clefts was very complicated and mechanisms of olfactory disturbance have not been completely proved, therefore better resolution of target image CT than the conventional methods and observations from two directions could provide more precise and three dimentional information. This examination was very useful for the diagnosis of the place and the degree of the pathological change causing olfactory disturbance. Furthermore, when the endonasal surgery was applied to the treatment of the disease, the evaluation of the local anatomy by CT was very important.
著者
中川 明仁 佐藤 豪
出版者
一般社団法人 日本健康心理学会
雑誌
健康心理学研究 (ISSN:09173323)
巻号頁・発行日
vol.24, no.2, pp.1-8, 2012-03-10 (Released:2013-09-06)
参考文献数
34
被引用文献数
1

Relationships between multidimensional self-oriented perfectionism, defense mechanisms and anxiety were investigated. Participants were university students (n = 169: 68 men and 101 women). They completed the following questionnaires: Multidimensional Self-oriented Perfectionism Scale (MSPS), Defense Style Questionnaire 42 (DSQ42) and State Trait Anxiety Inventory (STAI). Path analysis indicated that Personal Standards positively affected mature defense mechanisms; and moreover, mature defense mechanisms had negative effect on trait anxiety. Moreover, Concern over Mistakes had a positive effect on immature defense mechanisms, and furthermore, immature defense mechanisms had positive effect on trait anxiety.
著者
遠藤 明仁 Leon M.T. Dicks
出版者
日本乳酸菌学会
雑誌
日本乳酸菌学会誌 (ISSN:1343327X)
巻号頁・発行日
vol.19, no.3, pp.152-159, 2008 (Released:2010-09-29)
参考文献数
52
被引用文献数
2 1

Lactobacillus属細菌は発酵食品や動物消化管など幅広い環境に生息している細菌群であり、それらが持つ有益な働きから、乳酸菌の発酵食品や宿主の健康への影響を研究する上で、非常に重要な細菌群の一つである。現在、Lactobacillus属は 100 種以上の膨大な数の菌種で構成されており、それらの菌種は系統的に多岐に渡っている。前述の通り、Lactobacillus属細菌は産業にとって非常に重要な細菌群であるため、Lactobacillus属の系統的関係を扱った総説はこれまでに多くある。しかし、近年では毎年 10 菌種程度がLactobacillus属の新菌種として提案されているため、最新のLactobacillus属菌種の系統樹は、種間の系統関係の正しい把握のために大きな意味をもつ。更に、膨大なLactobacillus属の中には、通常言われているようなLactobacillus属の特徴と大きく異なる非典型的な特徴を持つ菌種も報告されているが、これらはこれまでの総説では全く扱われていない。そこで本総説では、Lactobacillus属菌種の最新の系統的位置関係とともに、特定の菌種のみが持つ非典型的な特徴について概説した。
著者
明仁 藍澤 正宏 池田 祐二 岸田 宗範 林 公義 中山 耕至 中坊 徹次
出版者
日本魚類学会
雑誌
魚類学雑誌 (ISSN:00215090)
巻号頁・発行日
vol.66, no.1, pp.53-62, 2019-04-25 (Released:2019-04-25)
参考文献数
32

Hybrids of Rhinogobius biwaensis and Rhinogobius sp. BF were identified in the ponds of Sento Imperial Palace, Kyoto City, Japan, from microsatellite and mitochondrial DNA markers. Mitochondrial DNA analysis indicated that five of seven Rhinogobius specimens had R. biwaensis haplotypes, the remaining specimens having those of Rhinogobius sp. BF. In DAPC and STRUCTURE analyses based on microsatellite data, all specimens examined showed intermediate status between R. biwaensis and Rhinogobius sp. BF, the two species being considered to have formed a hybrid swarm in the ponds because genetically pure individuals of either were not found. This is the first report of recent hybridization under field conditions in Rhinogobius fishes from Japan, confirmed by nuclear and mitochondrial DNA data. Hybrid Rhinogobius specimens from the ponds had 5–17 predorsal scales, an intermediate range between those of non-hybrid R. biwaensis (0–6) and Rhinogobius sp. BF (11–20). However, in appearance they were more similar to R. biwaensis than Rhinogobius sp. BF, having bluish-white distal coloring anteriorly on the first and second dorsal fins, a reduced reddish longitudinal band on the anal fin, and lacking yellowish dorsal and posterior margins on the caudal fin. However, they differed from R. biwaensis in having a narrower white posterior caudal fin margin. Further morphological differentiation of the hybrid specimens was not apparent.
著者
明仁親王
出版者
The Ichthyological Society of Japan
雑誌
魚類学雑誌 (ISSN:00215090)
巻号頁・発行日
vol.18, no.2, pp.57-64, 1971-09-15 (Released:2010-06-28)
参考文献数
5

Among the 109 species of gobiids listed at the end, the supratemporals were found in six species: five out of sixteen species in Group 1 and one species in Group 3 (Table 1).No supratemporal was found in Group 2 and Group 4 (for the characteristics of the four groups, see Prince Akihito, 1969). These bones were found between the sensory canal groove of the pterotic and the post-temporal (Fig.1).These species had a continuous sensory canal from the anterior tip of the head to the area of the supratemporals and the supratemporal canal.The supratemporals consisted of three pieces, anterior, median, and posterior, which I named without particular consideration for the homology of Tominaga's (1968: 59) anterior and posterior supratemporals on the Pempheridae.They were all separated in three species, Oxyeleotris marmorata (Figs.1.A and 2.A), Bostrichthys sinensis (Fig.2.C), and Ophiocara porocephala (Fig.2.D), and each piece usually had one nerve foramen.In two species of the genus Butis, B.butis (Fig.2.E, F) and B. gymnopoma (Fig.2.G), the median and posterior supratemporals were fused. In Xenisthmus clarus (Figs.1.B and 2.H) the anterior and median supratemporals were fused.The fused bone had two nerve foramina.Wide individual variations were observed in the shape, including loss of a bone (Fig.2.B), separation of a fused bone, loss of a nerve foramen, or an additional foramen on the upper lateral side.The presence or absence of supratemporals was dependent on the presence or absence of the sensory canal on that part, except in the cases of Bathygobius petrophilus and Syciopterus japonicus (both belonging to Group 4) which had a continuous sensory canal but no supratemporal canal. Although the presence or absence of sensory canals was sometimes inconsistent, it seems that the systematic value of the supratemporal is signifcant, considering that the most unspecialized Oxyeleotris marmorata and Bostrichthys sinensis (which are the only species having a suborbital) have the most complete sensory canal systems with three supratemporals.
著者
明仁親王
出版者
The Ichthyological Society of Japan
雑誌
魚類学雑誌 (ISSN:00215090)
巻号頁・発行日
vol.11, no.1-2, pp.1-26, 1963-12-15 (Released:2010-06-28)
参考文献数
10

1. 肩胛骨の有無, 形態をハゼ科魚類67種についてアリザリン染色によって調べた。これらは次のように分類された。有肩胛骨型47種肩胛骨はよく発達し背方から肩胛骨孔をかこんで二叉するが, 完全に孔をとりかこむものはない。射出骨のうすく染まる体長の小さい時期から肩胛骨は染色点或は棒として現われる。特殊型2種有肩胛骨型より肩胛骨の発達の不十分な型で無肩胛骨型との中間に位する。射出骨の十分に染まった体長の大きな個体でも染色されないものがあり, 又肩胛骨のある場合でも二叉はしないように思われる。無肩胛骨型18種肩胛骨を欠く型である。シロウオを除き射出骨, 烏喙骨の骨化は他の型と変りがない。2. 肩胛骨の形は個体変異が著しく, 種の特徴として重要視することはむずかしいが, 肩胛骨の有無は十分に成熟した個体では特殊型を除き種によって決まっており, 種を区別するには安定した一形質とみなされる。3. 肩胛骨の有無は属を区別する一つの特徴として取り上げ得ると考えられる。
著者
堅田 親利 田辺 聡 正來 隆 中山 明仁 岡本 牧人 小泉 和三郎
出版者
一般社団法人 日本消化器内視鏡学会
雑誌
日本消化器内視鏡学会雑誌 (ISSN:03871207)
巻号頁・発行日
vol.53, no.8, pp.2038-2048, 2011 (Released:2011-09-15)
参考文献数
17
被引用文献数
2

近年の内視鏡技術の進歩により,表在性の病変の視認性が向上する画像強調法が日常診療に導入された.これに伴い,上部消化管内視鏡検査の際に通過する頭頸部領域から,消化器内視鏡医が数多くの頭頸部表在癌を発見するようになった.本稿では,頭頸部表在癌の拾い上げ診断に関する知識を整理し,中下咽頭のルーチン観察法について解説する.
著者
鈴木 俊一 青木 広臣 川上 博人 畑 明仁 本島 貴之
出版者
一般社団法人 日本原子力学会 バックエンド部会
雑誌
原子力バックエンド研究 (ISSN:18847579)
巻号頁・発行日
vol.15, no.2, pp.87-98, 2009
被引用文献数
1

本稿では, 多重バリアシステムを有する放射性廃棄物処分施設の安全性能評価手法について提案する. 本稿で提案する手法は, 我が国において既存の放射性廃棄物処分施設に対しておこなわれた安全評価で用いられている移行率モデルの概念に基づいている. 提案する安全評価手法の有利な点は, 複雑な数値シミュレーションを多用することなく, 廃棄体からの溶出率を考慮した人工バリアシステム (EBS) からの放出フラックスを算定でき, さらに, 人工バリアが有する遅延性能, 低透水性能, 及び低拡散性能の3つの性能指標からなる移行率を提案・採用している点である. また, 本稿で提案する安全性能評価手法を用いて, 人工バリアからの放射性核種の放出フラックスに対して感度解析を行い, 廃棄体からの溶出率, 移行率, 及び人工バリアからの放射性核種の最大放出率による相図を作成し各パラメータの影響度を整理した.
著者
荻野 明仁 岩崎 圭介
雑誌
デジタルプラクティス (ISSN:21884390)
巻号頁・発行日
vol.9, no.2, pp.353-366, 2018-04-15

従来よりAI,特に自然言語処理技術の活用領域としてコンタクトセンタが挙げられていたが,ここ数年で実際にコンタクトセンタでAIを活用する事例が出てきている.自然言語処理AIエンジンを開発する企業に勤務する筆者らは,複数の開発・導入プロジェクトを経験しているが,どのプロジェクトにおいても大小さまざまな課題に直面した.これらの経験を通じて,AIの効果的な活用のためには,AI利用を前提とした業務プロセスの最適化-具体的には学習用データの整備や継続的な学習プロセスとチューニング-が必要であることが判明した.