2024年2月に日本建築学会「寒中コンクリート施工指針・同解説」が改定・発刊された。2022年JASS5の大改定との整合を図るとともに従来からの積算温度方式を継承し，計画，管理の基本となる積算温度M_nを用途に応じて，寒中コンクリート工事の適用期間の決定に用いる予想日平均気温に基づくM₉₁，調合計画に用いる計画養生温度に基づくMC_nおよび強度管理に用いる実測した日平均養生温度または日平均コンクリート温度に基づくMR_nに区分，算定に用いる温度を明確にした。また，構造体強度補正値₂₈S₉₁の定め方の明確化，保温養生計画における各種算定方法の見直し，品質管理・検査の合理化，資料編の位置付け・構成の見直しを行った。

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Recently, so called TMJ dysfunction has been increased, but its mechanism and causes are not clear.
We have made researches about TMJ dysfunction by observation and analysis of chewing movement.
The purpose of this study is to examine the effect of human anterior crossbite on their chewing patterns and know a relation between the anterior crossbite and TMJ dysfunction.
The conclusions are as follows:
1. Anterior crossbite was assorted two types. One was functional anterior crossbite of which chewing pattern showed convergence, the other was just morphological anterior crossbite of which pattern showed no convergence. The convergence was found remarkably on the frontal plane and the horizontal plane, but on the sagittal plane, it was not apparent.
2. The subjects whose chewing pattern showed convergence had symptoms of TMJ dysfunction.
3. The convergence was hardly found on the subjects whose type of occlusion was cuspid protected occlusion, it was suggested that cuspid protected occlusion covered the effect of anterior crossbite, and as a result, TMJ dysfunction was not appeared.

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This paper presents a simple strength simulation system newly investigated by the authors for mass concrete structures in cold weather. The system greatly simplifies the strength simulation of mass concrete structures. The aim of the research leading to this system was to create a simple and rational method of accurately predicting and determining certain properties of concrete in actual structures without resorting to full-scale modeling or complicated numerical analysis. Experimental test on mass concrete structures in cold weather was carried out in Sapporo and analytical study by a computer was also carried out to verify system's effectiveness. The good results obtained in the experimental test and in the analytical study established efficiency in predicting the strength of mass concrete structures in cold weather.

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ヒトG-CSF誘導体Nartograstimのin vitro代謝経路について，ラット組織ホモジネートを用い抗Nartograstim抗体を用いたWestern blotting法により検討した．Nartograstimの非特異的消失を担う肝臓および腎臓ホモジネートにおいては，37°Cで反応させたところpH7.5では代謝物は検出されなかったものの，pH4.5では界面活性剤存在下で12.7-18.5kDaの分子量の代謝物が6個検出された．一方，受容体を介した特異的取り込み機構を有する骨髄ホモジネートにおいては，pH4.5においては肝臓，腎臓と同様な代謝物が検出されたが，その組成比は異なっていた．これら組織ホモジネートにおける代謝物は時間とともに低分子側の代謝物が増えており，逐次的に分解されているものと考えられた．また反応条件より主にリソソーム酵素による分解の可能性が高いと考えられた．また，骨髄においてはpH7.5において9および11kDaの代謝物が検出され，骨髄に特異的な分解酵素の存在する可能性も示唆された．
以上のようにWesternblottingの手法によりG-CSFの細胞内での代謝過程を推測することができた．

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The purpose of this article is to investigate the effect of the restoration of single tooth by crown on chewing movement. Chewing movement was recorded and analyzed by Sirognathograph Analyzing System on 12 subjects both on restored side chewing and on contralateral side chewing, with the restoration and without the restoration.
The result showed there were no common evident difference among those experimental circumstances in all subjects. However, there were several parameters which might be affected among those circumstances in individuals. The parameters were the lateral deviation of closing path and the duration of occluding phase in the restored side chewing and the lateral deviation of closing path near intercuspal position and the duration of occluding phase in the contralateral side chewing.

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To quantify ash deposition phenomena in pulverized coal combustion, combustion tests of 14 type s of coal for ash deposition using mulite tube prove setting at deferent position were carried out with small scale combustion test facility. Three type s of ash deposit rate based on weight, volume and height of attached ash and porosity of deposit ash recovered from prove were calculated with measurement of weight, 3D scanning and true density These deposit rates were affected by type of coa l and installation position of prove. Al₂O₃ and SiO₂ content in coal were related to ash de posit rates and so participation of clay mineral including kaolinite and other Al silicate was indicated. Using these results, we estimated prediction method of deposi t rates and porosity from coal properties.

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