改进型铜基甲醇合成催化剂XC209的热稳定性

在 Cu- Zn- Al三组份的 C2 0 7型联醇催化剂中 ,添加 2种适量的过渡金属氧化物研制的XC2 0 9型联醇催化剂 ,经 4 50℃热处理 5h后 ,CO转化率比 C2 0 7型提高 8.6个百分点 .XRD和FTIR表征显示 ,工作态的改进型催化剂表面 Cu+ 活性浓度比 C2 0 7型高 ,热处理后能维持工作表面具有较大的 Cu+ /Cu°比 ,金属间相互作用加强了 ,这与改进型催化剂具有较高的热稳定性密切相关

Two Cases of Cemento-Ossifying Fibroma

The clinical and histopathological features of two cases of cemento-ossifying fibroma were reported in this paper. In the first case, the lesion appeared at the lower right molar region of a 25-year-old woman. Radiographic examination revealed that this area had a well demarcated radiolucent lesion, containing small radiopaque spots (Fig. 1). In the second case, the lesion appeared at the upper right molar region of a 41-year-old woman. Radiographic examination showed that this area had a radiopaque lesion (Fig. 2.). Histopathological findings from resected specimens of these two cases revealed that both were composed of soft fibroma containing cementicles and small bone tissues (Figs. 3-8). So that they were diagnosed as cemento-ossifying fibroma

Changes of hemoglobin values during the menstrual periods throughout the year in female collegiate EKIDEN runners

To investigate the changes of hemoglobin values during the monthly menstrual periods throughout the year in female collegiate Ekiden runners having normal menstruation. Four picked female collegiate long-distance runners and five ordinary women with no athletic experience as controls were the objects of this study. The following annually changing parameters were measured: daily body composition and hemoglobin level (Hb level; measured by ASTRIM FIT [Sysmex Corp., Japan]). All data were average values selected from five days of before and after monthly menstrual periods. The values of all parameters obtained during monthly menstrual periods of each subject were adopted for the analysis. Both runners group and control group indicated significant lower Hb values in menstrual periods than the values before and after the menstrual periods (p<0.05, respectively). And furthermore, the Hb value of runners group in menstrual periods (11.8±0.9 g/dL: lower than the reference value regulated by World Health Organization) was especially lower than the value of control group (13.5±0.9 g/dL). It was suggested from the results that female Ekiden runners should be careful with health management and adjustment of the daily practice for long-distance running particularly during each menstrual period正常な月経を有する大学女子駅伝選手における年間を通じた月経周期時のヘモグロビン値の変動について検討することを目的とした。被検者は，駅伝を専門とする長距離女子選手4名と，運動経験のない一般女性5名であった。ヘモグロビン（Hb）の測定は，毎日の起床時と就寝前に実施した。Hbの測定には簡易的ヘモグロビンモニタリング測定装置（シスメックス社製）を用いた。尚，各被検者の月経期及び月経前後のデータは，毎月の月経開始から終了までと，その前後のそれぞれ5日間の平均値を採用した。長距離選手群及び一般女性群の両群で，月経前後に比べて月経期が有意に低いHb値を示した（それぞれp<0.05）。さらに，月経期（11.8±0.9 g/dL：世界保健機関によって規制された基準値より低い）の長距離選手群のHb値は，一般女性群（13.5±0.9 g/dL）よりも特に低かった。以上の結果より，女性は月経期間中，特に長距離選手においては健康管理及び日常練習の調整に注意する必要があることが示唆された

钾促进钴钼耐硫CO变换催化剂的XPS和TPR表征

用 XPS和 TPR谱学表征方法 ,研究钾助剂对负载型 Co-Mo-K-O/γ-Al2 O3水煤气耐硫变换催化剂的作用 .XPS表征显示 ,硫化态催化剂随着钾添加量的增加 ,低价态钼和 S2 - 增加 ,( S-S) 2 - 受抑制 ,( Mo4+ +Mo5 + ) /Mo6 + 质量比为 0 .8～ 1和较多的 S2 - 物种有利于提高催化剂的低温活性 .TPR表征结果示出 ,硫化态及工作态催化剂皆出现α、β 2个吸氢峰 ,可分别归属 Mo6 + → Mo5 + 和 Mo5 + → Mon+ ( n=4 ,3,2 )的还原过程 ;工作态催化剂 α峰峰温较硫化态低 ,β峰为宽峰带低价钼混合峰 ;吸氢峰的大小与催化剂低温活性密切相关

A relationship between the stress at work-place change and characteristics about service at female nurses

The purpose of this study was to find out the stress factor about the work-place change in female nurses. A method of research was a questionnaire and obtained the reply from 45 5nurses.The analysis methods were factor analysis and two-way analysis of variance.The following seven factors were extracted as a result of factor analysis.(1) knowledge and skill shortage, (2) negative self-valuation, (3) fatigue feeling, (4) fundamental desire, (5) positive self-valuation, (6) somatic symptoms, and (7) weight change.The result of the analysis of variance in each stress factor, for the stress factor (1), the nurses less than one year after work-place change felt a strong stress. For the stress factors (2) and (5), the nurses more than seven times of work-place change felt a strong stress. For the stress factor (7), the nurses, who had work-place change once and/or were less than one year after work-place change, felt a strong stress.本研究目的は看護師の勤務異動に関わるストレス因子を見出すことと，勤務異動回数・現職場年数との関連を見出すことである.研究方法は看護師・助産師455名を対象に，質問票37項目（無記名の自記式構成質問票）を4件法で訊ねて潜在因子を抽出し，因子得点にて各因子における勤務異動回数4群と現職場年数4群との関連を二元配置分散分析した.因子分析では「知識・技術の不足」「否定的自己評価」「疲労感」「基本的欲求」「肯定的自己評価」「身体症状」「体重変動」の7因子が抽出され、勤務異動回数と現職場年数との関連では，「知識・技術の不足」で異動後1年未満の人はストレスを強く感じ，「否定的自己評価」では，異動回数8回以上の人が強く感じていた.「肯定的自己評価」は異動回数8回以上の人が強く感じ、「体重変動」では異動回数1回の人と現職場年数1年未満の人はストレスを感じているという結果であった

A Case of Odontogenic Myxo-fibroma

1. A odontogenic myxo-fibroma appeared in a 44-year-old woman was reported. It might be suggested to be odontogenic that the epithelial land resembling the epithelial rests of Malassez was found in this tumor. 2. Recently, interior, we collected 53 case reports of myxo-fibroma and myxoma in Japan, and analyzed clinically about these reports