著者
中川 洋 鈴木 麻希 竹内 瑛一 松本 良
出版者
公益社団法人 東京地学協会
雑誌
地学雑誌 (ISSN:0022135X)
巻号頁・発行日
vol.118, no.5, pp.969-985, 2009-10-25 (Released:2010-03-19)
参考文献数
34
被引用文献数
5 6

Plantonic and benthic foraminifera are analyzed with 11 sediment cores recovered from the Umitaka Spur area of the Joetsu Basin off Joetsu, Niigata Prefecture. The area is characterized by active methane seeps and methane hydrates. We recognize 12 foraminiferal biozones (Biozone I to XII in descending order) in the last 32000 years based on three selected cores (two well-dated and one longest), and apply them to another 8 cores for correlation. Sediment cores are divided into five lithologic units as massive to bioturbated mud (lithologic unit 1), thinly laminated mud (unit 2), gray massive mud (unit 3), thinly laminated dark mud (unit 4), and bioturbated mud (unit 5) from upper to lower. Lithologic units 2 and 4 correspond to basin-wide thinly laminated layers, previously reported as TL-1 and TL-2, respectively. The Japan Sea became a closed inland basin during the lowest sea level period of the last glacial maximum (LGM) at 27-26cal kyr BP (Biozone VIII). The surface water reached the lowest salinity level, while the bottom water was strongly anoxic due to reduced vertical circulation. An expulsion of a large amount of methane occurred on the Umitaka Spur during the LGM due to a massive dissociation of subsurface methane hydrate. Biozones VIII, VII, and VI at around 27-17 cal kyr BP with planktonic foraminiferal maximum and benthic foraminiferal minimum are found in a dark layer of TL-2, which was formed during the period of the lowest sea level in the LGM. Biozone IV, 12-11 cal kyr BP, is characterized by low oxygen tolerant benthic species of Bolivina pacifica, and correlates with dark layer TL-1, which implies that the deep circulation of Japan Sea was severely reduced for a short period during (or soon after) the Younger Dryas Cooling Event. B III represents the planktonic foraminiferal minimum zone, which marks the transition from cool water species to warm water species in planktonic foraminifera. Foraminiferal stratigraphy reveals that the sedimentation rate of the Umitaka spur sediments varied significantly depending on topography such as pockmarks or mounds.
著者
高木 昭佳 吉田 直子 渡部 有貴 中川 洋子 北澤 英徳 三村 泰彦 足立 伊佐雄 川上 純一
出版者
日本医療薬学会
雑誌
医療薬学 (ISSN:1346342X)
巻号頁・発行日
vol.33, no.1, pp.15-22, 2007-01-10
参考文献数
23
被引用文献数
1 3

To improve the drug information service and standardize pharmaceutical care for inpatients of the Department of Japanese Oriental Medicine, Toyama University Hospital, we created a Kampo (Oriental) medicine database and used it in the preparation of medication instruction sheets. The database was configured on a Power Mac G4 (Apple Computer, Inc.; Cupertino, CA, USA) personal computer operating on Mac OS 10.4 using FileMaker Pro 6 database software. The database comprised 5 interlinked files-patient registration file, constituent crude drug registration file, Kampo formula registration file, and a file for the making and storing of instruction sheets. Information on 239 crude drugs and 560 Kampo formulae obtained from our "Hospital Manual for Japanese Oriental Medicine" was recorded in the database. Further, color photographs of the plants from which the herbal medicines were derived and other natural medicines were included in the instruction sheets to give patients a better understanding of Kampo pharmacotherapy. The database has made it easy to prepare personalized instruction sheets, which can be done by only entering the patient's ID and the Kampo formulae prescribed or crude drug name. In addition, the medication instructions for each inpatient and the indication(s) of prescribed Kampo formulae have been recorded in the database for later use in the management of inpatient histories and to provide utilization statistics for Kampo medicines. When a questionnaire survey of inpatients of the Department of Japanese Oriental Medicine was carried out to evaluate the usefulness of the medication instruction sheets prepared using the database, it was found that they gave patients a better understanding of Kampo pharmacotherapy and made them more interested in it. In conclusion, our database system will help improve the drug information service and quality of pharmaceutical care for inpatients treated with Kampo formulae prepared from crude drugs.
著者
中川 洋 石島 三郎
出版者
日本真空協会
雑誌
真空 (ISSN:05598516)
巻号頁・発行日
vol.3, no.10, pp.381-388, 1960-10-20 (Released:2009-09-29)
参考文献数
8

The conventional evacuating system : combination of oil diffusion pump, booster pump and mechanical rotary pump, has serious faults in the case of pumping the chemically unstable matter. For instance, in the degassing stage of the molecular distillation plant, the gas is composed of air, volatile matter, water vapor and mist of unstable compound. These components are decomposed or polymerized in a evacuating system, and damage the normal opperation of pumps, especially in oil rotary pump. This is caused by less circulation of oil, and moving parts would be damaged.To conquer this difficulty, we tried to select the new pump composion ; diffusion-booster, steam ejector and water jet. This system has not any moving parts, so we can avoid adove difficulty. The performances of these pumps are as follows : Diffusion booster : Pumping speed (800900 l/sec at 10-310-2 mmHg) Critial back pressure (57mmHg) Steam ejector : Pumping speed (20 l/sec at 1 mmHg), Back pressure (40 mmHg) Water jet : Pumping speed (0. 95 l/sec at 5 mmHg), Back pressure (atmosphere).The overall performance shows very satisfactory result, and this system is now under continious operation for over a year.
著者
渡部 一郎 渡辺 剛男 仲田 哲郎 中川 洋
出版者
一般社団法人日本機械学会
雑誌
日本機械学會論文集 (ISSN:00290270)
巻号頁・発行日
vol.22, no.120, pp.590-595, 1956-08-25
被引用文献数
3

Among the factors which affect the performance characteristics of a pneumatic ejector, the effect of the distance α' from the nozzle exit section to the entrance of the parallel part of the mixing tube was experimentally dealt with in the present paper. It was found that the optimum distance α' for the highest vacuum and the highest ejector efficiency was α'=15mm, so long as the present ranges of experiments were concerned. As the inner diameter e of the parallel part of the mixing tube was selected as e=9.55mm, the optimum value above-mentioned yields to α'/e=1.57,which coincides with the results obtained previously by L.J. Kastner, J.R. Spooner for a pneumatic ejector. Besides, the present authors have measured the pressure distributions in the mixing tube, the results of which were compared with the theories by W. Tollmien and A.M. Kuethe. Further, the results of the present paper were compared with the results hitherto published for steam ejectors.
著者
鴨井 美帆 今村 武浩 山本 健 岡本 真理子 高橋 実里 園田 華子 西岡 千賀子 門松 伸一 山近 重生 斎藤 一郎 中川 洋一
出版者
日本歯科薬物療法学会
雑誌
歯科薬物療法 (ISSN:02881012)
巻号頁・発行日
vol.30, no.3, pp.85-91, 2011-12-01 (Released:2012-02-07)
参考文献数
18
被引用文献数
1

Purpose: The purpose of this study was to investigate the effects of sulpiride, an antidepressant, on xerostomia.Method: Fifty-five patients who visited the Dry Mouth Clinic, Tsurumi Dental Hospital with subjective oral dryness were enrolled in this study. The cause of the xerostomia in the patients was unknown. The patients did not meet Sjögren's syndrome criteria, and their condition was not congruent with xerostomia caused by radiation therapy to the head and neck, HIV infection, chronic graft-vs-host disease, or diabetes mellitus. The patients were divided into two groups: the dry group, with the chief complaint of dry mouth, and the pain group, with the chief complaint of pain. The patients received oral administration of sulpiride, and the clinical efficacy was evaluated by doctors' subjective judgment and by visual analogue scale (VAS).Results: Sulpiride was effective in both groups, but the response rate was higher in the pain group than in the dry group according to the doctors' subjective judgment. In the evaluation by VAS, improvements were not obtained in other items such as thirstiness and dysgeusia, although a significant decrease of VAS value was found in "dry mouth" in the dry group. In contrast, in the pain group, significant improvements were found in all items as well as pain.Conclusions: The results suggested that the dry and pain groups possessed completely different pathophysiologies. The results also suggested that subjective dry mouth may be a partial symptom of burning mouth syndrome (BMS), and that depression was one of the causative factors of xerostomia.
著者
中川 洋一
出版者
鶴見大学
雑誌
基盤研究(C)
巻号頁・発行日
2008

ムチンは湿潤作用と防御作用をもち、その唾液における重要性は認識されているものの、臨床的な検討は必ずしも多くない。本研究の目的は、ドライマウス患者唾液におけるムチン濃度の測定ならびに、ムチン分泌量と口腔へのカンジダ定着との関連性を調べることである。検討結果から、ドライマウス患者における唾液ムチン量は少なく、また唾液中ムチンはカンジダ定着に抑制に働いている可能性が示唆された。
著者
山近 重生 中川 洋一 寺田 知加 川口 浩司 瀬戸 〓一 石橋 克禮
出版者
Japanese Society of Oral and Maxillofacial Surgeons
雑誌
日本口腔外科学会雑誌 (ISSN:00215163)
巻号頁・発行日
vol.52, no.10, pp.527-531, 2006-10-20
被引用文献数
2 2

Glandular odontogenic cyst (GOC), first described in 1988 by Gardner <I>et. al</I>, is a comparatively rare jawbone cyst of odontogenic origin, which shares some features with both botryroid odontogenic cysts and mucous-producing salivary gland tumors. Although GOC has a high rate of recurrence, cases of recurrence have not been reported in the Japanese literature.<BR>This paper describes a case of GOC arising in the mandible of a 58-year-old man. The cyst recurred 12 years after primary treatment. Diagnosis and treatment of the lesion are discussed.
著者
山近 重生 中川 洋一 寺田 知加 川口 浩司 瀬戸 皖一 石橋 克禮
出版者
社団法人 日本口腔外科学会
雑誌
日本口腔外科学会雑誌 (ISSN:00215163)
巻号頁・発行日
vol.52, no.10, pp.527-531, 2006-10-20 (Released:2011-04-22)
参考文献数
12
被引用文献数
1 2

Glandular odontogenic cyst (GOC), first described in 1988 by Gardner et. al, is a comparatively rare jawbone cyst of odontogenic origin, which shares some features with both botryroid odontogenic cysts and mucous-producing salivary gland tumors. Although GOC has a high rate of recurrence, cases of recurrence have not been reported in the Japanese literature.This paper describes a case of GOC arising in the mandible of a 58-year-old man. The cyst recurred 12 years after primary treatment. Diagnosis and treatment of the lesion are discussed.
著者
橋爪 敦子 中川 洋一 石井 久子 小林 馨
出版者
Japanese Society of Oral and Maxillofacial Surgeons
雑誌
日本口腔外科学会雑誌 (ISSN:00215163)
巻号頁・発行日
vol.50, no.1, pp.1-10, 2004-01-20
参考文献数
19
被引用文献数
7 3

We describe the preoperative use of limited cone beam computed tomography (CT) with a dental CT scanner for the assessment of mandibular third molars before extraction. Cone beam CT provides 42.7-mm-high and 30-mm-wide rectangular solid images, with a resolution of less than 0.2mm.<BR>The positional relationship between the mandibular third molars and the mandibular canal was examined by dental CT. Sixty-eight lower third molars of 62 patients whose teeth were superimposed on the mandibular canal on periapical or panoramic radiographs were studied. Dental CT scans clearly demonstrated the positional relationship between the mandibular canal and the teeth. The mandibular canal was located buccally to the roots of 16 teeth, lingually to the roots of 27 teeth, inferiorly to the roots of 23 teeth, and between the roots of 2 teeth. The presence of bone between the mandibular canal and the teeth was not noted in 7 of 16 buccal cases, 24 of 27 lingual cases, and 10 of 23 inferior cases on dental CT scans, suggesting that the cana was in contact with the teeth.<BR>Fifty-nine of the 68 mandibular third molars were surgically removed, and postoperative transient hypoesthesia occurred in 4 patients. Dental CT scans showed no bone between the mandibular canal and the teeth in all 4 patients. Hypoesthesia was not related to the bucco-lingual location of the mandibular canal or to the extent of bone loss between the canal and the teeth. However, hypoesthesia did not occur in patients with bone between the mandibular canal and the teeth. Thus, information on the distance between the canal and teeth on dental CT scans was useful for predicting the risk of inferior alveolar nerve damage.<BR>Because of its high resolution and low radiation dose, cone beam CT was useful for examination before mandibular third molar surgery.