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| 1.
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三津野, 真澄 ; 渡辺, 弘明 ; 田崎, 和江 ; 長沼, 毅 ; Mitsuno, Masumi ; Watanabe, Hiroaki ; Tazaki, Kazue ; Naganuma, Takeshi
概要:
金沢大学理工研究域地球社会基盤学系
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| 2.
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佐藤, 大介 ; 田崎, 和江 ; Sato, Daisuke ; Tazaki, Kazue
概要:
金沢大学理工研究域地球社会基盤学系<br />尾小屋鉱山の坑口(第六立坑)からは,現在も高濃度の重金属を含む酸性の廃水(pH3.5)が流出し続けており,消石灰の投入による中和凝集沈殿処理が行われている.処理後の廃水が流入する沈殿池から採取し
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たコアサンプル(44層)の鉱物組成をX線粉末回折(XRD)によって,また含有元素の割合をエネルギー分散型蛍光X線分析(ED-XRF),NCSコーダーによって分析した.コアサンプルの上部には茶褐色の層が多く,下層になるにつれて色は薄れていく.茶褐色は含有するFeの量により,それらは低結晶性の水酸化鉄鉱物の存在を示唆し,Cu,ZnおよびPbが吸着していると考えられる.また,Sの含有量は深層になるに従って多くなる.カルサイトはコアの上層部に多く,下層部にはエトリンガイトが形成されているが,Cdの含有量はカルサイトやエトリンガイトと同じようなプロファイルを示す.その他,堆積物中には,ジプサム,石英,ブルーサイトが認められた.Caは上層部ではカルサイトとして,また,下層部ではエトリンガイトとして堆積している.本研究により,消石灰の投入によって中和処理された鉱山廃水中の重金属イオンは,水酸化鉄,カルサイト,エトリンガイトに伴って堆積,蓄積されていることが明らかになった.<br />Depositional formula of heavy metals after disposal of the mine drainage from the Ogoya Mine in Ishikawa Prefecture, Japan, was mineralogically investigated. Strong acidic wastewater (pH3.5) from pithead of the mine contains high concentration of heavy metals. In this mine, neutralizing coagulation treatment is going on by slaked lime (calcium hydroxides: Ca (OH)_2). Core samples were collected at disposal pond to which the treated wastewater flows. The core samples were divided into 44 layers based on the color variation. The mineralogical and chemical compositions of each layer were analyzed by an X-ray powder diffractometer (XRD), an energy dispersive X-ray fluorescence analyzer (ED-XRF) and a NCS elemental analyzer. The upper parts are rich in brown colored layers, whereas discolored are the deeper parts. The color variation is relevant to Fe concentration. Brown colored core sections are composed of abundant hydrous ferric oxides with heavy metals, such as Cu, Zn, and Cd. On the other hand, S concentration gradually increases with depth. XRD data indicated that calcite decreases with increasing depth, and ettringite is produced at the deeper parts. Cd concentration shows similar vertical profile to those of calcite and ettringite. The results revealed that hydrous ferric oxides, calcite and ettringite are formed on deposition, whereby incorporating the heavy metals.
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| 3.
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大野, 源広 ; 田崎, 和江 ; Ohno, Motohiro ; Tazaki, Kazue
概要:
金沢大学理工研究域地球社会基盤学系<br />高温環境である平湯温泉,おばこ原の湯には3種のバイオマット(白色,茶色,緑色)が存在する.これらのバイオマットは水温,pH,Eh,DO,光および温泉水の流れの変化に伴い,上流部から下流部に向かっ
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て色調が白色→茶色→緑色へと変化する.白色バイオマットは主として大鎌型細菌から構成され,硫黄を濃集するのに対し,茶色バイオマットは多量の桿菌および少量の糸状菌で構成され,水酸化鉄を濃集する.また,緑色バイオマットは糸状菌から構成され,カルシウムを濃集し,方解石を形成する.すなわち,バイオマットの色は生息する微生物種と形成された生体鉱物を反映している.その中でも高温環境下に存在する大鎌型細菌は夾膜の表面に雁行状に硫黄の結晶を成長させる特徴がある.<br />Colorful biomats were found at Obakoharanoyu in Hirayu Hot Springs, Gifu, Japan. At the upper stream white biomats were commonly found, whereas brown and green biomats occur at the down stream, according to change of environmental conditions, such as temperature, pH, Eh, DO, S2-, photosynthesis and water flow velocities. The pH, WT, Eh, and DO diagrams of the hot spring water from upper to down stream have responded to the occurrence of biomats. White biomats occur in low pH (6.1), reducing (Eh:-270mV), micro-aerobic (DO: 0.3mg/l) and high temperature (70℃) conditions. On the other hand, brown biomats occur in wide ranges of pH (6.5-7.8), Eh (-125〜90mV), DO (2.0〜5.0mg/l) and WT (42-60℃) respectively. In contrast, the occurrence of green biomats are high pH (8.4), oxidizing (Eh: 100mV), aerobic (DO: 7.5mg/l) and middle temperature (30℃). Sulfur ions are detected in water on the white biomats (1-2ppm), while not detected from both brown and green biomats. The white biomats comprising sausage shaped bacteria contain abundant sulfur. The green biomats consist of filamentous bacteria with abundant calcite. The results have revealed that the color of biomats reflects the environmental conditions. TEM and SEM observations indicate that sulfur particles adhere to capsule on the cell wall of sausage shaped bacteria in white biomats. The sulfur particles might be grown to a-sulfur crystals of 10μm insize. The results have revealed that sulfur-biomineralization of sausage shaped bacteria in white biomats is a very important factor for sulfur removal in hot springs.
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| 4.
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田崎, 和江 ; 倉繁, 和也 ; Tazaki, Kazue ; Kurashige, Kazuya
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金沢大学理工研究域地球社会基盤学系<br />北陸地方では泥漬け,つまり野菜を泥でつける食文化が伝承されている.本研究では,泥漬けで用いられる泥"赤ベト"の特性および漬け込むだナスの表皮が染色するメカニズムを明らかにした.数日間,赤ベトに漬
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けたナスの表皮は鮮やかなコバルトブルーになる.一般に,赤褐色の泥の化学的特性は豊富な鉄によると認識されてきた.赤ベトには,粘土鉱物の他に,石英や長石などのケイ酸塩鉱物,鉄ミョウバン,そして水酸化鉄が含まれていた.これらの鉱物の含有量は各地域の泥により変化した.蒸留水,塩酸水溶液および溶液の水質(pH, Eh,EC,そしてDO)の変化を9日間測定したところ,酸性条件下で加水分解により鉄イオンが溶出することが示された.以上の結果から,加水分解によりナスの表皮がコバルトブルーに変色する現象は,ナスの主要な色素であるanthocyanやhyacinに関係していることが示唆される.<br />Abstract"Mud-Pickles" soaking vegetables has been handed down in Hokuriku District from generation to generation. The characteristics of the mud for soaking, and the mechanisms of dyeing eggplants in "Aka-beto" were revealed in this study. The eggplant kept in "Aka-beto" for few days exhibits brilliant cobalt blue. Chemical characteristics of the reddish brown-colored mud were commonly acknowledged as abundant Fe. "Aka-beto" contains silicate minerals such as quartz, feldspars, jarosite, and hydrated iron oxides, in addition to clay minerals. The content of these minerals was varied, depending on the local mud. Values of pH, Eh, EC and DO of the mud which added to distilled water, HCl and NaCl, were measured for 9 days respectively. The results indicated that ion leaching of Fe, occurred in acidic condition, due to hydrolysis. Accordingly, it is suggested that such a hydrolysis change of the color of eggplants into cobalt blue, in association with anthocyan and hyacin, major pigments of eggplant.
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| 5.
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楊, 敏壮 ; 松平, 光男 ; Yang, Minzhuang ; Matsudaira, Mitsuo
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金沢大学人間社会研究域学校教育系<br />In the measurement of dynamic drape coefficient of fabrics, mean correlation coefficient between m
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easured data and regressed values of revolving drape increase coefficient ; Dr, shows the highest value if the straight region of 2 nd step is decided from 50 to 130 rpm. Standard deviation of the correlation coefficient becomes the smallest value in this region. Therefore, the revolving drape increase coefficient could be defined as the slope of dynamic drape coefficient versus revolution speed curves in the region between 50 and 130 rpm. Relationship between Dr, revolving drape coefficient at 200 rpm ; D200, and mechanical parameters of bending and shearing properties were studied precisely and the regression equations were derived from those mechanical parameters. It was shown clearly that Dr and D200 are controlled predominantly by shearing property rather than bending property as it has the effect on conventional static drape coefficient.
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| 6.
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常川, 直子 ; 北浦, 孝 ; Ttsunekawa, Naoko ; Kitaura, Takashi
概要:
金沢大学国際基幹教育院GS教育系<br />本研究では, ドーピング薬に指定されているクレンブテロールを雄マウスに投与し, 骨格筋の乳酸の代謝特性と収縮特性に及ぼす影響について解析した.得られた結果は次の通りである.<BR>(1) 成長に及
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ぼす影響として, 投与群に体重の有意な増加が認められた.<BR>(2) 投与群の筋湿重量と体重比は速筋のEDLで差は認められず, 遅筋のSOLでは有意な増加が認められた.<BR>(3) 乳酸の代謝特性に関しては, 投与群の遅筋のSOLにおいてLDH比活性の上昇傾向とLDH総活性値の有意な上昇がみられ, Lactate shuttleにおける乳酸生成の促進が示された.また, 投与群の遅筋のSOLにおいてはLDHのMTypeの増加も認められ, 明らかな乳酸生成の促進を裏付けるものであった.速筋のEDLではいずれも変化は認められなかった.<BR>(4) 収縮特性に関しては投与群の遅筋のSOLにおいてMyosin-HCのType IIの割合が増加し, 筋全体の速筋化が認められた.しかし, 投与群の速筋のEDLにおいては, Myosin-HCでは影響は認められなかった.<BR>クレンブテロール投与により, 速筋のEDLよりも遅筋のSOLにおいて著明な速筋化がおこった.この結果は, β2レセプターにクレンブテロールが結合し, A-kinase系の反応が促進されたことで, 乳酸生成の促進と筋肥大をともなうタンパク合成の促進またはタンパク分解抑制, あるいはそれらの相互作用の結果, 筋線維タイプ移行が生じたためと推察される.<BR>クレンブテロールは主に, β2レセプターが遅筋により多く分布することから, 特に遅筋により強く作用すると推察された.しかし, 遅筋における筋肥大の直接的な作用機序, 核内の転写調節因子, MyoDやmyogeninの関与についてはまだわかっておらず, 今後の検討課題である. A study was conducted to investigate the effects of the beta-2 receptor agonist, clenbuterol, on the slow-twitch soleus (SOL) and the fast-twitch extensor digitorum longus (EDL) muscles. Twelve male 5-wk-old mice (ddY ) were divided into two groups ; control ( CANT, n=6 ) and clenbuterol-treated (CLEB, n=6) . Clenbuterol was given in the drinking water (0.02 mg/mL) for 5 weeks. Post-treatment body weights were approximately 10% greater in the CLEB group compared to CANT (P<0.05) . In the SQL muscles of the CLEB group the wet weight and the ratio of muscle weight to body weight was significantly higher than the CANT (P<0.01), but not in the EDL. In the SOL muscles of the CLEB group the muscle type LDH isozyme distribution and enzymatic activity was significantly increased (P<0.01) . However, there was no metabolic change in the EDL muscles. Polyacrylamide gel electrophoresis (SDS-PAGE) of myosin heavy chain (Myosin-HC) indicated a clenbuterol-induced decrease (P<0.05) in the relative percentage of type I Myosin-HC with a concomitant increase (P<0.05) in Type II Myosin-HC in the SQL of the CLEB group. The Myosin-HC composition in the EDL was not altered. These findings suggest that clenbuterol may have induced selectively changes of muscle hypertrophy, the predominant anerobic glycolysis, and the transition of Myosin-HC in the SOL. The differences in the two muscles can be explained by the higher number of beta-2 receptors in slow-twitch muscles.<br />出版者照会後に全文公開
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| 7.
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小田, 誠 ; 金森, 太郎 ; 丸川, 洋平 ; 伊藤, 祥隆 ; 石川, 暢己 ; 田村, 昌也 ; 呉, 哲彦 ; 渡辺, 俊一 ; 太田, 安彦 ; 渡辺, 剛 ; 渡辺, 洋宇 ; Oda, Makoto ; Kanamori, Taro ; Marukawa, Yohei ; Itoh, Y. ; Ishikawa, Y. ; Tamura, Masaya ; Go, Tetsuhiko ; Watanabe, Shun-ichi ; Ohta, Yasuhiko ; Watababe, Go ; Watanabe, Yoh
概要:
金沢大学医薬保健研究域医学系<br />The purpose of this study was to evaluate the results of new TNM staging system for lung cancer in 1
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997, especially T3N0M0, stage IIIA, stage IIIB, and pm. Five-year survival rates of the patients with stage IIIA and stage IIIB were 16% and 18% respectively (NS). Five-year survival rates of patients with T3N1M0, T1N2M0, T2N2M0, and T3N2M0 were 40%, 28%, 15%, and 3%, respectively. The prognosis of T3N2M0 was significantly worse than that of T3N1M0, T1N2M0, and T2N2M0. Five-year survival rates of the patients excluding pm 1 with T4N0M0, T4N1M0, T4N2M0, and T4N3M0 were 21%, 10%, 10%, and 0%, respectively. The prognosis of the patients with T4N0 was significantly better than that of T4N2 and T4N3. In the patients with pm, 5-year survival rates of the patients with pm 1 and pm 2 were 26% and 7%, respectively (p < 0.01). In the patients with pm 1, 5-year survival rates of the patients with N0 + N1 and N1 + N2 were 53% and 16%, respectively (p < 0.01). From our these results, we supported the new TNM system as putting T3N0M0 to stage IIB, putting pm 2 into stage IV. We proposed; 1) chest wall invasion with bone destruction stay in stage IIIA or is T4, 2) T3N1M0 is classified with stage IIB, 3) main stem bronchus invasion is classified with T2, 4) pm 1 is subdivide by N status. Furthermore, stage III seemed to be reasonably subdivided into T1-2N3M0, T4N0-1M0 as stage IIIA and T3-4N2, T1-4N3 as stage IIIB.
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埒, 正浩 ; 川上, 光彦 ; Rachi, Masahiro ; Kawakami, Mitsuhiko
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金沢大学理工研究域環境デザイン学系<br />The Land Readjustment Project has played a major role in newly urbanizing area in Japan. This pap
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er studies the changes of design for this Project in Kanazawa City and tries to give the problem of this project. Main components of design are streets, park, project area, existing village and reserved land. This paper also tries to give the factor of urbanization in Land Readjustment Project Area by analyzing the distribution between lots of the urbanization.
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| 9.
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小林, 史彦 ; 川上, 光彦 ; Kobayashi, Fumihiko ; Kawakami, Mitsuhiko
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金沢大学理工研究域環境デザイン学系<br />The control of new buildings plays an important role in maintaining the balance between improveme
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nt of the living environment and historical townscape conservation. It is often the case that building regulations by the Building Standard Law act as a negative factor in maintaining the balance. Firstly in this study, we made a general survey on how building regulations are being eased in Preservation Districts for Groups of Historic Buildings. Secondly, based on the general survey, we made a case study to clarify the appropriate building regulations to maintain the balance between improvement for the living environment and townscape conservation by using building models.
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川上, 光彦 ; 松浦, あき子 ; 大谷, 瑞絵 ; 小林, 史彦 ; Kawakami, Mitsuhiko ; Matsuura, Akiko ; Ohtani, Mizue ; Kobayashi, Fumihiko
概要:
金沢大学理工研究域環境デザイン学系<br />This paper analyzes planning process of municipality master plans based on nationwide surveys car
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ried out to prefectures and municipalities using questionnaires, and references for planning guidance issued by prefecture governments. As result of study, following points are founded. There are some inconsistencies between prefecture intentions and municipalities' needs the planning committees are categorized five types referring its formation of members' representative bodies. The planning organization are also categorized eight types, which have supportive sub-committees or ad-hoc committees for public participation.
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