著者

H. M. EL-HINDI H. A. AMER

出版者

Center for Academic Publications Japan

雑誌

Journal of Nutritional Science and Vitaminology (ISSN:03014800)

巻号頁・発行日

vol.35, no.5, pp.505-510, 1989 (Released:2009-04-28)

参考文献数

19

被引用文献数

6 6

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Six variable supplementations of thiamine magnesium, and sulfates were given to 30 male adult rats in their diets. After 3 weeks, the concentrations of thiamine in the blood and liver and those of cholesterol, phospholipids, and triglycerides in the serum were determined. Blood thiamine level did not reflect the vitamin content in liver. Sufficient and/or excessive intake of the 3 supplementations caused an increase in liver thiamine content and body weight gain; it also caused a reduction in serum cholesterol level without a change in the levels of serum triglycerides and phospholipids. Deficiency of both magnesium and sufate salts in thiamine-supplemented groups decreased body weight gain and liver thiamine content with a significant elevation of serum triglycerides.

著者

A. H. M. Enamul Kabir Masahiko Sekine Tsuyoshi Imai Koichi Yamamoto

出版者

Japan Society on Water Environment

雑誌

Journal of Water and Environment Technology (ISSN:13482165)

巻号頁・発行日

vol.18, no.3, pp.175-194, 2020 (Released:2020-06-10)

参考文献数

103

被引用文献数

9

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Marine microplastics pollution has been an emerging global threat. This study investigated microplastics pollution in the ‘Seto Inland Sea (SIS)’ and ‘Sea of Japan (SJ)’ surrounded Yamaguchi prefecture areas in Japan. The density separation method was applied to extract microplastics from sea surface sediment and water samples. Polymeric compounds were identified through ATR-FTIR analysis. The average microplastic abundances were 112.57 ± 121.30 items/kg in sediment and 57.46 ± 20.82 items/L in water. Abundance comparisons revealed similar level of pollution in both sea areas and medium to high-level pollution than others around the world. Characterization revealed that fragments and small microplastics (< 1,000 µm) predominated sediments. Fragments and films were major shapes in the SIS sediments while only fragments predominated the SJ sediments. Large microplastics (1,000–5,000 µm) fibers predominated water in all the areas. Transparent microplastics predominated both the sediments and water. Polyethylene, polyvinyl alcohol, and polypropylene were major polymers in sediments while polyethylene terephthalate and polyethylene predominated water. No significant correlations of microplastics abundances and characteristics were observed between sediment and water. Anthropogenic activities and environmental factors were speculated to be the main sources of microplastics in these areas. Overall, this study indicated that microplastics pollution in these marine areas could be an alarming environmental problem.

著者

H.M.

出版者

公益社団法人日本船舶海洋工学会

雑誌

造船協会雑纂 (ISSN:03861597)

巻号頁・発行日

no.157, pp.187-188, 1935-04

著者

狩野 敦 コーネリアス H.M.バン ベーブル

出版者

園藝學會

雑誌

園芸学会雑誌 (ISSN:00137626)

巻号頁・発行日

vol.56, no.4, pp.408-416, 1988

被引用文献数

1 10

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温室トマトの決定論的生長モデルを1)葉の光合成モデル, 2)生長と呼吸の理論, および3)光合成が環境条件と葉中光合成産物の濃度に律速されているという仮説に基づいて開発した. モデルは Pascal 言語で記述され, トマトに対する二酸化炭素(CO₂)増与の効果をシミュレートするのに用いられた. 1983年から1984年にかけてアメリカ合衆国テキサス州カレッジステーションにて行なった2回の栽培実験の結果とモデルの出力を比較した. この栽培実験のために, 著者らは3つの2×2×10mのポリエチレンチャンバーを二重ポリエチレン温室内に構築し, チャンバー内空気のCO₂濃度をそれぞれ340,700, 1000ppm(容量)に制御してトマトを栽培した.<br>モデルはトマトのCO₂同化速度を低めに出力したが,果実の生育量とその収量はかなり正確に予測した.このモデルを用いて, 環境条件がトマトに与える影響を予想したり, いろいろな栽培環境における温度制御法の効果を推定したりすることが可能なことがわかった.また, このモデルが温室モデルに組み込まれることにより, 温室内で栽培されたトマトの生育や収量, 暖房熱,水やCO₂の必要量などを温室外環境から推定するのに役立つと思われる.

著者

テオドール・H.M.プルードン著 玉田浩之編訳

出版者

鹿島出版会

巻号頁・発行日

2012

著者

H.M.フォックス著 朝日稔 藤本佳佑訳

出版者

法政大学出版局

巻号頁・発行日

1958

著者

H.M.フォックス著 朝日稔 藤本佳佑訳

出版者

法政大学出版局

巻号頁・発行日

1971

著者

H.M.エンツェンスベルガー著 野村修訳

出版者

晶文社

巻号頁・発行日

1987

著者

Eugene C. BWALYA Sangho KIM Jing FANG H. M. Suranji WIJEKOON Kenji HOSOYA Masahiro OKUMURA

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

vol.79, no.7, pp.1182-1190, 2017 (Released:2017-07-07)

参考文献数

44

被引用文献数

11

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Mesenchymal stem cells (MSC) are a potential alternative source of differentiated chondrocytes for cartilage tissue regeneration and repair of osteoarthritic (OA) joints. We investigated the effects of pentosan polysulfate (PPS) and polysulfated glycosaminoglycan (PSGAG) on chondrogenesis of canine bone marrow-derived mesenchymal stem cells (cBMSC) in alginate and micromass cultures (MMC). Chondrogenic differentiation medium (CDM) was supplemented with PPS or PSGAG at concentrations of 0 (positive control; PC), 1, 3 and 5 µg/ml. 10% DMEM was used as negative control. Chondrocyte phenotype was analyzed by quantitative real-time PCR (qPCR) for alginate cultures and Alcian blue staining for proteoglycan (PG) synthesis for MMC. In alginate culture, PPS and PSGAG showed no significant effect on type II collagen, aggrecan and HIF-2α mRNA expression. PPS had no significant effect on type I collagen whereas PSGAG significantly upregulated (P<0.05) it at all concentrations relative to other treatments. PPS demonstrated a dose-dependent inhibitory effect on type X collagen mRNA with significant inhibition observed at 5 µg/ml compared to the NC. PSGAG showed an inverse effect on type X collagen with 1 µg/ml significantly inhibiting its expression while increase in the concentration correspondingly increased type X collagen expression. In MMC, PPS significantly enhanced chondrogenesis and PG deposition whereas PSGAG inhibited chondrogenesis and promoted a fibrocartilage-like phenotype with reduced PG deposition. While PPS enhances chondrogenesis of cBMSC in MMC, the response of MSC to chondroinductive factors is culture system-dependent and varies significantly between alginate and MMC.

著者

Eugene C. BWALYA Sangho KIM Jing FANG H.M. Suranji WIJEKOON Kenji HOSOYA Masahiro OKUMURA

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.17-0084, (Released:2017-05-27)

被引用文献数

11

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Mesenchymal stem cells (MSC) are a potential alternative source of differentiated chondrocytes for cartilage tissue regeneration and repair of osteoarthritic (OA) joints. We investigated the effects of pentosan polysulfate (PPS) and polysulfated glycosaminoglycan (PSGAG) on chondrogenesis of canine bone marrow-derived mesenchymal stem cells (cBMSC) in alginate and micromass cultures (MMC). Chondrogenic differentiation medium (CDM) was supplemented with PPS or PSGAG at concentrations of 0 (positive control; PC), 1, 3 and 5 μg/ml. 10% DMEM was used as negative control. Chondrocyte phenotype was analyzed by quantitative real-time PCR (qPCR) for alginate cultures and Alcian blue staining for proteoglycan (PG) synthesis for MMC. In alginate culture, PPS and PSGAG showed no significant effect on type II collagen, aggrecan and HIF-2α mRNA expression. PPS had no significant effect on type I collagen whereas PSGAG significantly upregulated (P<0.05) it at all concentrations relative to other treatments. PPS demonstrated a dose-dependent inhibitory effect on type X collagen mRNA with significant inhibition observed at 5 μg/ml compared to the NC. PSGAG showed an inverse effect on type X collagen with 1 μg/ml significantly inhibiting its expression while increase in the concentration correspondingly increased type X collagen expression. In MMC, PPS significantly enhanced chondrogenesis and PG deposition whereas PSGAG inhibited chondrogenesis and promoted a fibrocartilage-like phenotype with reduced PG deposition. While PPS enhances chondrogenesis of cBMSC in MMC, the response of MSC to chondroinductive factors is culture system-dependent and varies significantly between alginate and MMC.

著者

ビューヒナーヴァイディヒ〔著〕 H.M.エンツェンスベルガー編集・解説 森光昭訳

出版者

イザラ書房

巻号頁・発行日

1971

著者

長江 滝三 松田 卓也 藤原 秀和 蜂巣 泉 Boffin H. M. J.

出版者

日本流体力学会

雑誌

日本流体力学会年会講演論文集 (ISSN:13428004)

巻号頁・発行日

vol.2002, pp.124-125, 2002-07-23

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Three-dimensional hydrodynamic calculations are performed in order to investigate mass transfer in a close binary system, in which one component undergoes mass loss through a wind. The mass ratio is assumed to be unity. The radius of the mass-losing star is taken to be about a quarter of the separation of the two stars. Calculations are performed for gases with a ratio of specific heatsγ=1.01 and 5/3. Mass loss is assumed to be thermally driven so that the other parameter is the sound speed of the gas on the mass-losing star. Here, we focus our attention to two features : flow patterns and mass accretion ratio, which we define as the ratio of the mass accretion rate onto the companion, M_<acc>, to the mass loss rate from the mass-losing primary star, M_<loss>. We characterize flows by the mean normal velocity of wind on the critical Roche surface of the mass-losing star, V_R. When V_R < 0.4AΩ, where A and Ω are the separation of two stars and the rotational frequency of the binary, respectively, we obtain Roche-lobe over-flow (RLOF), while for V_R > 0.7AΩ we observe wind accretion. We find very complex flow patterns in between these two extreme cases. We derive an empirical formula of the mass accretion ratio as 0.45×10^<-1.8V_R/AΩ> in the low velocity regime and 5.0×10^<-3> (V_R/AΩ)^<-4> in the high velocity regime.