著者

今泉 吉典

出版者

THE MAMMAL SOCIETY OF JAPAN

雑誌

哺乳動物学雑誌: The Journal of the Mammalogical Society of Japan (ISSN:05460670)

巻号頁・発行日

vol.2, no.1, pp.17-22, 1961

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An imperfect body with a complete skull of <I>Crocidura dsinezumi orii</I> Kuroda 1924, was found in a stomach of <I>Trimeresurus okinavensis</I>, which was colleced in July, 1960 by Mr. T. Morita and Dr. K. Koba at Yuwandake, Amami-Oshima, Japan. It is the second and unique specimen of <I>orii</I>, because this form has only been known by a type, a skin and an imperfect skull, collected in 1922 and destroyed by fire in 1945. The second specimen, adult male, is easily distinguished from <I>russula, sodyi, tanakae, thornasi, dsinezumi, umbrina, chisai, shantungensis, watasei</I> and <I>tadae</I> by relatively longer fur of the back (6.0-6.5 mm against 2.5×5.0 mm), decidedly larger claws of manus (2.7 mm against 1.1-1.8 mm), much shorter braincase (nearly circular against oblong), and posteriorly located posterior border of anteorbital foramen and anterior extremity of orbit. Therefore, this form may not be a subspecies of <I>dsinezumi</I> but a distinct species, <I>Crocidura orii</I>, peculiar to the small island.

著者

今泉 吉典

出版者

THE MAMMAL SOCIETY OF JAPAN

雑誌

哺乳動物学雑誌: The Journal of the Mammalogical Society of Japan (ISSN:05460670)

巻号頁・発行日

vol.5, no.6, pp.213-223, 1973

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The newly proposed method of taxonomic analysis employing the binomial distribution seems to be usefull to clarify the presence of the reproductive isolation among the members of a population from a continuous region. The binomial distribution is always observed in a local population composed of individuals belonging to a single biological species, but not in a false population containing two or more such species. The reason is briefly explained in the following lines.<BR>In a true local population, variation of a morphological character under the influence of several genes generally shows the normal distribution, so that an allelomorphic type refered to the left or the right half of the distribution always appears at the rate of one half. Therefore, all possible combinations of such allelomorphic types of several qualified characters may occur in the population. Each of the qualified characters here used is composed of two allelomorphic types which have an appearance ratio of one to one, and are not correlated to the other characters and independent with sex, age, season, etc.<BR>If the allelomorphic types of each of the qualified characters are expressed by a capital and a small letters, A a, B b, etc., variations in the number of capital letters in each individual of the true population always constitute a binomial distribution following the laws of combination and probability. But, such binomial distribution cannot occur in a false population composed of two or more distinct species, for the individuals are segregated by the reproductive isolation and random distributions of allelomorphic types are greatly disturbed.<BR>Close correlations between the nature of population and the binomial distribution were confirmed in a true population of <I>Clethriononiys bedfordiae</I> from the main island of Hokkaido and in a false population composed of <I>C. sikotanensis</I> and <I>C. rex</I> from Rishiri Island, off Hokkaido.

著者

今泉 吉典

出版者

THE MAMMAL SOCIETY OF JAPAN

雑誌

哺乳動物学雑誌: The Journal of the Mammalogical Society of Japan (ISSN:05460670)

巻号頁・発行日

vol.4, no.2, pp.35-39, 1968

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Two species of <I>Nyctalus</I>, the large noctule <I>N. lasiopterus aviator</I> THOMAS, 1911 and the lesser noctule <I>N. noctula motoyoshii</I> KURODA, 1934 (=<I>Nyctalus noctula</I> NAMIE, 1889), have been known from Japan. The former is common everywhere, but the latter seems to be rare and is known only by two missing syntypes studied by Namie. The author recently had an opportunity to examine several specimens of a kind of smaller noctule obtained from Japan, which were remarkably different from <I>motoyoshii</I> and much similar to the typical <I>noctula</I>. This raised a doubt about the taxonomic status of <I>motoyoshii</I>. Then, the original description and the figures of this species were carefully examined and several characters differing from the genus <I>Nyctalus</I> were found out by the author. On the other hand, all the characters of <I>motoyoshii</I> mentioned in the original description well agree with <I>Vespertilio</I> from Japan. Therefore, <I>motoyoshii</I> seems to be nothing but a synonym of <I>Vespertilio superans</I> which is rather common to the type locality of the former, Chichibu, central Japan.

著者

今泉 吉典 吉行 瑞子

出版者

THE MAMMAL SOCIETY OF JAPAN

雑誌

哺乳動物学雑誌: The Journal of the Mammalogical Society of Japan (ISSN:05460670)

巻号頁・発行日

vol.2, no.4, pp.105-108, 1965

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A specimen, subadult female, of <I>Tadarida</I> was collected from Kumamoto City, Kyushu, Japan, by Dr. H. Tange in April, 1964. It is identified as <I>T. insignis</I> (BLYTH, 1861) and hence the third record for this species in Japan. If this identification is correct, <I>insignis</I> may not be a subspecies of <I>T. teniotis</I> but a distinct species differing in the following characters; 1) the wing membranes are only inserted to the lower third of the tibia instead of just above the ankle; 2) calcar with a distinct keel; 3) color of fur is fuscous, much darker than that of <I>teniotis</I>; 4) in the skull, zygomatic and lachrymal breadth are relatively narrower and the mandible is relatively longer than in <I>teniotis</I>; 5) lower incisors are strongly imbricated and the relatively larger second incisor extends to the middle of the inner lobe of the first incisor. The distribution of <I>insignis</I> is confined to China, Korea, southern Ussuri and Japan and clearly separated from that of <I>teniotis</I> by a broad region extending from Indo China and Tibet to Afghanistan.

著者

今泉 吉典 吉行 瑞子 土屋 公幸

出版者

THE MAMMAL SOCIETY OF JAPAN

雑誌

哺乳動物学雑誌: The Journal of the Mammalogical Society of Japan (ISSN:05460670)

巻号頁・発行日

vol.3, no.2, pp.44-45, 1966

著者

今泉 吉典

出版者

THE MAMMAL SOCIETY OF JAPAN

雑誌

哺乳動物学雑誌: The Journal of the Mammalogical Society of Japan (ISSN:05460670)

巻号頁・発行日

vol.2, no.5, pp.131-135, 1965

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The so-called Fissura palatina of <I>Equus</I>, broadly used in the veterinary anatomy, is undoubtedly homologous with the Foramen incisivum of <I>Homo sapiens</I>. The latter seems to be derived from the pared incisive foramina of the lower Primates by reduction of the size of the incisive foramina and reduction of the palatine processes between the foramina and the Fissura palatina of <I>Equus</I> by an enormous development of the processes. Therefore the Fissura palatina of <I>Equus</I> must be strictly called Foramen incisivum. On the other hand, the so-called Foramen incisivum of <I>Equus</I> is a quite different structure and has no concern with the same named foramen of human anatomy. Therefore, the author wants to designate such a foramen between the medial border of the palatal portion of the premaxillaries as Foramen intermaxillare. Such a small foramen is not infrequently found in <I>Mogera, Microtus, Rattus</I>, and etc. An enormous foramen, posterior to Foramen incisivum, found in Ursidae-and some Mustelidae, is also considered to be Foramen intermaxillare, because it is bordered completely by the palatal process of the premaxillaries.

著者

今泉 吉典

出版者

日本哺乳動物学会

雑誌

哺乳動物学雑誌 (ISSN:05460670)

巻号頁・発行日

vol.1, no.5, 1958-07

著者

今泉 吉典

出版者

THE MAMMAL SOCIETY OF JAPAN

雑誌

哺乳動物学雑誌: The Journal of the Mammalogical Society of Japan (ISSN:05460670)

巻号頁・発行日

vol.6, no.3, pp.127-136, 1975

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<I>Lutronectes whiteleyi</I> GRAY, 1867, based on two young specimens collected from Hakodate, Hokkaido, Japan, seems to be extinct in the native land, and no specimens have been known in Japan.<BR>While studying the river otter of Japan, the author was attracted his attention by an adult rough skeleton of the subgenus <I>Lutra</I> in the mammal collection of the National Science Museum, Tokyo. Unfortunately the locality of the specimen is uncertain, but there is little doubt that it was collected at the beginning of the Mei ji era, nearly 100 years ago, in the territory of Japan at that time, that is Hondo or Hokkaido. As the specimen is evidently different from the otter of Hondo, the locality is inevitably estimated as Hokkaido.<BR>This estimation coincides with the result of identification of the specimen as <I>Lutra whiteleyi</I> based on strong similarities to OGNEV's adult specimen from Nemuro, Hokkaido, and dissimilarities to the most of the named forms of the subgenus <I>Lutra</I>, in several cranial measurements.<BR>If this identification is correct, <I>whiteleyi</I> seems to be a well established taxon of <I>Lutra lutra</I> group characterized by relatively narrow mastoid breadth and shorter muzzle (Table 6, F and G) .<BR>An opinion that <I>whiteleyi</I> covers whole populations of the Japanese otter, proposed by Pococx (1931), the present author (1949), etc., is not correct. <I>L. whiteleyi</I> must be confined to the Hokkaido population.

著者

今泉 吉典 吉行 瑞子 小原 巖 土屋 公幸 今泉 忠明

出版者

THE MAMMAL SOCIETY OF JAPAN

雑誌

哺乳動物学雑誌: The Journal of the Mammalogical Society of Japan (ISSN:05460670)

巻号頁・発行日

vol.4, no.3, pp.63-73, 1969

被引用文献数

1

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Three distinct mammal communities were recognized in a forest region on the western slope of Mt. Fuji, Honshu, Japan. Among them, the subalpine conifer forest community is relatively poor both in the number of species and in the density of populations of small mammals and is distinguished from the subalpine deciduous forest community by the absence of <I>Apodemus speciosus speciosus</I> and rarity of <I>Eothenomys kageus</I>. The low mountain mixed forest community is characterized by the presence of <I>Urotrichus talpoides hondonis</I> and the absence of <I>Dymecodon pilirostris</I>.<BR>In the most of species found in this region, the habitat range seems to clearly correlate with the nature of forests. However, those of <I>Dymecodon</I> and <I>Urotrichus</I> are exception and seem to be mainly determined by a kind of competition between them.<BR>In the region above Shôjiguchi Ni-gôme, 1, 500-2, 380 m alt., the habitat range of <I>Dymecodon</I> was completely confined to an area above and that of <I>Urotrichus</I> mostly to an area below a line at about 1, 600 m alt. in a mixed forest. However, two specimens of <I>Urotrichus</I> were obtained in the habitat range of <I>Dymecodon</I>, one at 2, 380 m and the other at 1, 670 m alt. This indicates that the habitat ranges of these two species are mostly segregated, but the territory of <I>Dymecodon</I> population is not so exclusive as that of <I>Urotrichus</I> and contains several individuals of the latter. Quite same phenomena of such special segregation between these two species have been known from Mt. Hayachine, Tohoku District, and Mt. Yatsugatake, Central Honshu.<BR>This can be explained clearly by a following hypothesis. There is a "competition by power" between those two shrew-mole species which are nearly related and similar in general habits including the ecological niche but are slightly different in size and physical strength. So that the individuals of the stronger species, <I>Urotrichus</I>, able to successfully maintain their territories against the individuals of the weaker one, <I>Dymecodon</I>, but the reverse is not true. If the population density of the stronger species is nearly in saturation in an area, then the individuals of the weaker species may be completely driven out from there. But, the stronger species probably able to invade rather freely into the range of weaker species and to live on there.<BR>It is probable that <I>Dymecodon</I>, evidently more primitive and older in origin than <I>Urotrichus</I>, had probably covered nearly completely the foot of Mt. Fuji in ancient times. After that <I>Urotrichus</I> had arrived there and gradually drove out <I>Dymecodon</I> from the foot to subalpine region. However in some regions where <I>Urotrichus</I> perhaps had failed to invade by some kinds of barriers, populations of <I>Dymecodon</I> have been maintained well to the present day. A population of <I>Dymecodon</I> at Lake Motosu region, 910m alt., may be such living remnant.

著者

松多 信尚 池田 安隆 今泉 俊文 佐藤 比呂志

出版者

日本活断層学会

雑誌

活断層研究 (ISSN:09181024)

巻号頁・発行日

vol.2001, no.20, pp.59-70, 2001 (Released:2013-03-22)

参考文献数

12

被引用文献数

1

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The Kamishiro fault is one of the major active faults constituting the Itoigawa-Shizuoka Tectonic Line (ISTL) in central Japan. The Kamishiro fault is an east-dipping reverse fault. This fault cuts and warped the young lake deposits (late Pleistocene and Holocene in age) in the Kamishiro basin. The slip rate on the Kamishiro fault near the surface has been estimated by Geo-Slicer and shallow drillings survey, but was found to be significantly smaller than the vertical slip-rate that was estimated from the displacement of the AT volcanic ash. We carried out a 55 m deep drilling and a seismic reflection profiling using S-waves in this basin to clarify the subsurface structure of the Kamishiro fault. As a result, it was clarified that the Kamishiro fault is associated with drag folding near the surface. If we take the drag folding into account, the overall rate of slip on the fault would be as high as 4.4-5.2mmlyr during the past 28ka.

著者

今泉 容子

出版者

筑波大学人文社会科学研究科国際日本研究専攻

雑誌

国際日本研究 (ISSN:21860564)

巻号頁・発行日

no.2, pp.39-78, 2010-03

著者

梅澤 正樹 今泉 薫 樋口 大輔 丸山 淳 本村 一朗 吉野 智子 胡田 由美子 船登 雅彦 川和 忠治

出版者

Showa University Dental Society

雑誌

昭和歯学会雑誌 (ISSN:0285922X)

巻号頁・発行日

vol.16, no.3, pp.195-203, 1996-09-30

被引用文献数

12 7

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本研究は, 平成5年度に昭和大学歯科病院第一補綴科で装着されたクラウンおよびブリッジに関して, その総製作数, 種類および割合, 支台歯の有髄, 無髄等を統計的に調査し, 歯冠補綴治療の現状を把握することを目的として行われ, 以下の結果が得られた.1.クラウンとブリッジの総数は1,202個で, クラウンが1,022個 (85.1%), ブリッジが180個 (14.9%) であった.2.クラウンにおいて最も多いのは全部鋳造冠572個 (56.0%) であった.次いで陶材焼付鋳造冠183個 (17.9%) とレジン前装鋳造冠183個 (17.9%) で, 陶材焼付鋳造冠は平成4年度の288個と比較して大幅に滅少した.また平成3年度に一例も装着されなかったレジン前装鋳造冠が平成4年度では110個 (10.2%), 平成5年度では183個 (17.9%) と大幅な増加を示した.3.クラウンは前歯部ではレジン前装鋳造冠が約50%, 小臼歯部では全部鋳造冠が約70%を占め, 大臼歯部では約90%が全部鋳造冠であった.4.ブリッジは臼歯部に約60%, 前歯部および前歯部から臼歯部にわたるものが, それぞれ約20%ずつ装着されていた.5.ブリッジは前歯部, 臼歯部において1歯欠損2本支台歯が最も多かった.前歯部から臼歯部にわたるものにおいては, 2歯欠損3本支台歯が多かった.6.クラウンにおける保険診療は74.3%であり, ブリッジにおいては76.7%であった.7.クラウンの支台歯における無髄歯は88.8%, インプラント支台0.9%であり, ブリッジにおいては無髄歯が75.4%であった.

著者

鈴木 毅彦 斎藤 はるか 今泉 俊文

出版者

The Geological Society of Japan

雑誌

日本地質学会学術大会講演要旨 (ISSN:13483935)

巻号頁・発行日

pp.335, 2013 (Released:2014-04-01)

著者

與谷 謙吾 今泉 英徳 桐本 光 北田 耕司 田巻 弘之 荻田 太 竹倉 宏明

出版者

日本生理人類学会

雑誌

日本生理人類学会誌 (ISSN:13423215)

巻号頁・発行日

vol.12, no.3, pp.139-146, 2007

参考文献数

30

被引用文献数

1

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Visual stimulation-reaction time and subsequent strike time in the sport of kendo were assessed using electromyographic (EMG) reaction time. Fourteen male college students (kendo athletes (n=7), non-kendo athletes (n=7)) were asked to perform a kendo strikes in response to visual stimulation from a flashing light signal. The strikes employed, the Hiki-Men (HM) and Hiki-Kote (HK), were performed using a bamboo sword, or Shinai, using both of the upper limbs as quickly as possible. The EMG signals from the right (R) and left (L) biceps brachii, the R-, and L-triceps brachii, and R-flexor carpi ulnaris muscles were recorded simultaneously together with the elbow joint angle and hitting shock signals. Total task time (TTT), pre-motor time (PMT), motor time (MT), and action time (AT) were measured for the HM and HK tasks. The photo stimulation body reaction time (BRT) was also measured. Significant strong positive correlations were observed between PMT and TTT for both HM and HK tasks (p<0.01, r=0.93-0.94). Multiple regression analysis was used to determine the contribution of each component of the model in TTT. The standardized partial regression coefficient (β) was significant (P<0.01) for MT (β=0.36-0.38), AT (β=0.49-0.56) and was highest for PMT (β=0.79-0.80). The individual time ratio for PMT, MT and AT to TTT was approximately 50%, 20% and 30%, respectively. No significant correlations were observed between BRT and TTT for the HM and HK tasks (r=-0.02, 0.16). These results suggest that PMT is the most important component contributing to the TTT, and that BRT is not correlated to the TTT in kendo strikes.

著者

今泉みね著 今泉源吉編

出版者

みくに社

巻号頁・発行日

1940

著者

中田 高 大槻 憲四郎 今泉 俊文

出版者

THE TOHOKU GEOGRAPHICAL ASSOCIATION

雑誌

東北地理 (ISSN:03872777)

巻号頁・発行日

vol.28, no.2, pp.111-120, 1976

被引用文献数

7 4 4

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Nagamachi-Rifu Dislocation Line runs in the NE-SW direction marking the boundary between Sendai Coastal Plain in the southeast and hilly land in the northwest. Along this dislocation line, deformation of terraces of the Hirose and Natori rivers have been noticed by many scholars. The present writers have investigated intensively the mode of deformation of the terraces and structure of Pliocene Sendai group, in order to clarify characteristics of Quaternary crustal movements along the dislocation line.<br>Main results are as follows:<br>1) The dislcoated terraces, i. e. Aobayama, Dainohara, Uwamachi, Nagamachi and Shimomachi Terraces in descending order, form an elevated zone stretching parallel to the dislocation line for 10km with width of 1km. On the northwestern margin of the zone, Dainenjiyama Faults (thrusts) are located shaping scarplets or gentle slopes and terrace deposits are often displaced on the faults. On the southeastern margin, a flexure structure associated with subsurface Nagamachi-Rifu Fault, which is presumed to be a thrust, forms conspicuous scarplets or steep slopes accompanying warped terrace deposits which submerge below alluvium.<br>2) These terraces are deformed with the greater rate on the older terrace in a same mode and the mode is also in harmony with that of Pliocene Sendai group. Average rates of vertical displacements on Dainenjiyama Faults and Nagamachi-Rifu Line are calculated to be 0.1+mm per year and 0.5mm per year respectively since formation of Aobayama Terrace III. Deformation rate of this terrace to that of uppermost Pliocene Dainenji bed is about 2 to 3.<br>3) Most of minor faults along the dislocation line are thrusts chiefly with dip-slip components and their strikes appear in the NE-SW direction, which coincide with characteristics of Dainenjiyama Faults and Shishiochi Fault located 1km to the west.<br>4) Judging from the deformation of Sendai Group with brittle shear fracture and unchangeable thickness of the group, commencement of crustal movements along Nagamachi-Rifu Line may be dated in Quaternary succeeding to the emergence of uppermost Pliocene Dainenji bed.<br>5) Maximum compressive principal stress axis, which is elucidated by the characteristics of major and minor faults along the dislocation line, lies in the NW-SE direction and coincides with the direction deduced from focal mechanisms of recent major earthquakes and microearthquakes analysis in the surrounding area.<br>6) This maximum stress direction pattern also concides with stress field inferred from characteristics of notable active faults in the vicinity. Some of historical great earthquakes have occurred along these faults indicating that these faults are still active under the same stress field.<br>Therefore it can be said that during Quaternary period continuous and accumulative crustal movements have been taking place along Nagamachi-Rifu Dislcoation Line under the NW-SE compressive stress field.

著者

今泉 裕美子

出版者

法政大学

雑誌

基盤研究(C)

巻号頁・発行日

2011-04-28

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①日米政府の刊行・未刊行史・資料、聴き取りから、信託統治への移行期に関する統治及び政策の全体像の提示、②米海軍が収集した日本の統治に関する情報が極めて限定されており、アメリカ文化人類学者の植民地社会分析を日本による統治の実態と突き合わせて検討、③信託統治への移行過程は、米軍の南洋群島占領統治から検討すべきこと、非現地住民引揚げまでで時期区分する必要性を提示、④米の極東政策と信託統治政策との関係を日本兵と非現地住民の帰還政策から分析した。但し⑤新たな史・資料を収集しえたが情報が僅少で、改めて今後の調査方針をたて、⑥当時10代後半以後の中等教育を受けたインフォマントからの情報の重要性を確認した。

著者

今泉定介 編

出版者

吉川弘文館

巻号頁・発行日

vol.御代始抄(一条兼良) 有職袖中抄, 1906

著者

今泉定介 編

出版者

吉川弘文館

巻号頁・発行日

vol.女官装束着用次第, 1906

著者

松本 健吾 星野 輝彦 今泉 隆志

出版者

一般社団法人 日本環境感染学会

雑誌

日本環境感染学会誌 (ISSN:1882532X)

巻号頁・発行日

vol.29, no.2, pp.105-111, 2014 (Released:2014-06-05)

参考文献数

12

被引用文献数

1 2

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抗菌薬の適正使用をすすめる上で,「介入とフィードバック」による監査は重要である.当院における「介入とフィードバック」をより推進するため,抗菌薬適正使用支援システム(本システム)を構築した.本システムにより,細菌検査結果に基づいた検出菌一覧やアンチバイオグラムのような有用な情報を速やかに作成できた.これらの情報に基づいて,抗菌薬の適正使用状況を確認し,必要に応じて,薬剤師は処方医へ薬剤変更などの処方提案を速やかに実施した.その結果,細菌検査を実施した患者の中で処方提案を行った件数は,10件(3.6%)より57件(17.5%)へ大きく上昇した.またシステム構築前後の処方提案に対する受入れ率は,それぞれ90.0%と75.4%となった.またシステム構築後において,処方提案に対し受入れた方が,受入れなかった場合よりも臨床効果の有効率が高い傾向が見られた.本システムは,短時間で抗菌薬の適正使用を監査するうえで有用である.今後,病棟薬剤師と連携し,対象患者は抗菌薬療法を行うすべての患者へ広げる予定である.