著者
Sachiyo TANAKA Hitomi SHIBUYA Shuji SUZUKI Nobuo KANNO Yasuji HARADA Asaka SATO Satoshi SOETA Yasushi HARA
出版者
JAPANESE SOCIETY OF VETERINARY SCIENCE
雑誌
Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日
pp.20-0401, (Released:2020-12-02)
被引用文献数
7

This study aimed to assess the structural and functional effects of long-term hyperglucocorticoidemia on canine myocardium and compare these parameters with histopathological changes. Twelve healthy male beagle dogs were enrolled and assigned to the high-dose prednisolone (P; n=6) and control (C; n=6) groups. The P group was treated with 2 mg/kg of prednisolone BID for 84 days. Clinical parameters were measured using echocardiography and non-invasive systolic blood pressure (SBP) measured before the initiation of synthetic corticosteroids and at 7, 28, 56, and 84 days after the start of medication. For histological evaluation, cardiovascular tissue was harvested from dogs in groups P (at the end of the medication period) and C (scheduled to be euthanized for unrelated reasons). In the P group, clinical changes including thickening of the left ventricular free wall (LVFW) and interventricular septum (IVS), decreased left ventricular (LV) diastolic function, and increased SBP were observed after the start of medication. During histological evaluation, fibrosis was observed in the LVFW and IVS in the P group. Furthermore, decreased glucocorticoid receptor (GCR) levels were observed in the LVFW, right ventricular free wall (RVFW), and IVS and increased mineralocorticoid receptor (MCR) levels were observed in the LVFW and RVFW in the P group compared with those in the C group. In conclusion, fibrosis may cause LV structural and functional abnormalities in dogs with hyperadrenocorticism. Furthermore, GCR downregulation and upregulated MCR might influence the myocardial fibrosis.
著者
岡田 有司 渡邉 文枝
出版者
日本教育工学会
雑誌
日本教育工学会論文誌 (ISSN:13498290)
巻号頁・発行日
vol.43, no.Suppl., pp.73-76, 2020-02-20 (Released:2020-03-23)
参考文献数
9

本研究では,教養教育科目における授業選択理由がどのような側面から捉えられるのかを検討した上で,教養教育の履修条件や大学生活動機が授業選択理由に与える影響について明らかにすることを目的とした.大学生2872名のデータ分析から以下のことが明らかにされた.まず,因子分析の結果,教養教育科目における授業選択理由は「自律的選択」「周囲からの影響」「単位取得の容易さ」の3つの側面から捉えられた.重回帰分析からは,大学生活動機は授業選択理由に相対的に強い影響を与えていることが示された.また,教養教育の履修条件や学生の属性に関する要因の一部も授業選択理由と関連のあることが明らかになった.
著者
近藤 祐一郎 青木 弘行 宮崎 清
出版者
一般社団法人 日本デザイン学会
雑誌
デザイン学研究 (ISSN:09108173)
巻号頁・発行日
vol.45, no.3, pp.37-44, 1998-09-30 (Released:2017-07-21)
参考文献数
26
被引用文献数
2

本研究は籾殻の炭化法を変化させることによって得られる性状の変化を確認し, それに基づいて稲作農村地域における水質浄化材などへの有効利活用法について探求したものである。実験では, 熱重量測定実験, 比表面積測定実験, 細孔分布測定実験を行い, 以下の知見を得た。1)籾殻燻炭は, 活性炭と比較して炭素分は少ない反面, 灰分(ミネラル分)は多い。しかし, 稲作農村地域では排水処理材の他にもさまざまな応用・展開が可能であり, 十分に利用価値のある資源である。 2)野焼き法で製造した籾殻燻炭は単位価格あたりに対する比表面積が高く, 活性炭や木炭と比べて経済的である。 3)被吸着物質に応じた細孔径を有する籾殻燻炭を, 炭化条件を変化させることにより製造することができる。 4)稲作農村地域では生活雑排水が水質汚染源であり, 野焼き法と320℃, 520℃で炭化した3種類の籾殻の併用が最も効果的である。
著者
熊谷 誠治 佐々木 恵司 清水 良枝 武田 紘一
出版者
日本素材物性学会
雑誌
素材物性学雑誌 (ISSN:09199853)
巻号頁・発行日
vol.20, no.2, pp.34-38, 2007-12-28 (Released:2010-10-28)
参考文献数
18
被引用文献数
4 4

Japanese rice husk was converted into an adsorbent for the removal of two types of aldehyde vapors. The rice husks carbonized at 250-800°C in N2 for 1h were exposed to vapors containing 1.0 vol. ppm formaldehyde or 100 vol. ppm acetaldehyde (both N2 carrier) in 5 L-gas sampling bags. Maximum adsorption rates of formaldehyde and acetaldehyde were observed for rice husks carbonized at 800 and 600°C, respectively. The adsorption rates of the aldehydes on the carbonized rice husks were higher than or comparable to those of the commercial granular coconut-shell activated carbon (GCSAC), whereas the specific surface area and the total pore volume of the carbonized rice husks were much lower than that of the GCSAC. The surface basic property of the rice husks carbonized at high temperatures was attributed to the intrinsic inorganic matters of K and Ca, which enhanced an uptake of the aldehydes on their surfaces.
著者
七海 絵里香 大澤 啓志 勝野 武彦
出版者
公益社団法人 日本造園学会
雑誌
ランドスケープ研究 (ISSN:13408984)
巻号頁・発行日
vol.77, no.5, pp.593-598, 2014 (Released:2015-05-22)
参考文献数
30
被引用文献数
2 3

People have made various relations between plants for every time or area. As a result, the vegetation and the local scene have been formed for every area. But, it is apprehensive about increase of a rural management abandonment place, and the fall of the biodiversity accompanying it in recent years. There is a Japanese lacquer producer who continues four generation in southern Yamizo Mountains. This study aimed to elucidate roles of the traditional plant resource utilization for conserving an indigenous rural landscape element, particularly semi-natural grasslands. We clarified the spatial distributions of woodlots for the lacquer tapping, habitat properties, management state and understory vegetation for this Japanese lacquer produce at an example. As a result, It was shifting to the landscape of large-scale woodlots for the lacquer tapping on a abandoned cultivated land from small-scale woodlots on the base of a mountain or a bank. However, the kind of many species of Miscanthetum sinensis-class is a growth cage as a good half-natural grassland in the habitat of a bank. That is, the difference had arisen in the composition of woodlots floor vegetation by the career of the land. And It was considered that those species richness decreasing when management abandonment progressed.
著者
北野 信彦 本多 貴之 佐藤 則武
雑誌
保存科学 = Science for conservation
巻号頁・発行日
no.49, pp.25-44, 2010-03-31

The present paper is a report on the study of the red coating paints used at the Nikko-Toshogu Shrine constructed during the early Edo period, particularly those newly built in the Genna age or reconstructed in the Kan,ei age. The coating methods used were simple, just one coating layer applied directly on the surface of the structure with no foundation underneath. This is very different from the method used for repair in the middle and late Edo period in which several layers of urushi coating were applied over a thick foundation. The raw materials of the pigments used for the reddish brown coating paints were mineral hematite (α-Fe2O3) containing much quartz (SiO2). Since some old documents record that akatsuchi was offered by the Tsugaru daimyo to the Tokugawa shogunate and that toshu was used as one of the red coating materials on wooden architecture at the Nikko-Toshogu Shrine, it is our understanding that these red pigments (mineral hematite containing much quartz) are the same materials as akatsuchi and toshu. Moreover, as a result of PY-GC/MS analysis of these coating materials, it became clear that urushi coating material to which a great amount of drying oil, starch and animal glue had been added was used as coating paint. Many of these coating materials were used accordingly to suit the character or the importance of each building.
著者
藤田 英二 濱田 初幸 中村 勇 小山田 和行 野口 博之 松崎 守利 森﨑 由理江 安河内 春彦
出版者
日本武道学会
雑誌
武道学研究 (ISSN:02879700)
巻号頁・発行日
vol.50, no.3, pp.159-164, 2018

This study used a dual-energy X-ray absorptiometry (DXA) method to investigate how body weight relates to fat-free mass index (FFMI) and fat mass index (FMI) in male college judo players. The whole-body fat-free mass and fat mass of 59 male college judo players were measured to the nearest 0.1 g using a DXA method. The fat-free mass and fat mass thus obtained were each divided by the square of the height (m) to give the FFMI and FMI, respectively. The percentage of body mass index (BMI) accounted for by FFMI and by FMI (%) was then calculated. The relationship between body weight and the percentage of BMI accounted for by FFMI and by FMI (%) can be interpreted as two straight lines with a break point. The break point can be determined by a regression analysis of these two straight lines using the plots of the percentage of BMI accounted for by FFMI and by FMI (%) by the least squares method. Using this method, the break point of two straight lines was obtained with the minimum square sum of the residual. The results showed the break point of the plots of percentage of BMI accounted for by FFMI and by FMI against body weight was 87.6 kg for both FFMI and FMI, and that as body weight increased, the proportion of FFMI in BMI decreased and the proportion of FMI in BMI increased. This break point indicates that the limit up to which it is possible to increase weight without worsening the body composition in male college judo players is around 90 kg, and any weight gain above this will depend on an increase in fat more than an increase in muscle.
著者
小木曽 裕 根本 和晃 藤崎 健一郎
出版者
公益社団法人 日本造園学会
雑誌
ランドスケープ研究 (ISSN:13408984)
巻号頁・発行日
vol.76, no.5, pp.753-756, 2013 (Released:2014-05-08)
参考文献数
17
被引用文献数
2

The aim of this study is to elucidate how residents’ perception and use of green belts (“forests”) in housing complexes changed when such spaces were redeveloped in order to meet residents’ needs to eliminate parts considered as obstacles from the viewpoints of perception and utilization. The opinion of residents about the forest space in Tamadaira was that its balance was improved by the redevelopment, its overall atmosphere was lightened, and the space became easier to use. Consequently, the forest was considered to have become more valuable. The use of forests preserved in the area also increased as a result of redevelopment, and the residents’ perception of the forests was improved. This higher evaluation is attributed to the comprehensive improvement of forests in accordance with the needs of residents, whereby the presence of forests was the objective of planning and scholarship through long-term workshops and green academic seminars.