检索结果-南通市图书馆

American Journal of Analytical Chemistry 2013年第4期4卷 190-196页

作者： Atsuko Tada Kyoko Ishizuki Junichi Iwamura Hirohisa Mikami Yoshiko Hirao Isao Fujita Takeshi Yamazaki Hiroshi Akiyama Yoko kawamura Laboratory of Creative Science Co. Ltd. Misonocho Japan Morita Kagaku Kogyo Co. Ltd. Osaka Japan National Institute of Health Sciences Tokyo Japan Shimadzu Corporation Kyoto Japan

Steviol glycosides are natural sweetener constituents found in the leaves of Stevia rebaudiana Bertoni (Asteraceae). The specifications for steviol glycosides were established by the Joint FAO/WHO Expert Committee on Food Additives (JECFA) in 2008, although there was a call in the following year for the modification of this assay method to enable the determination of nine steviol glycosides rather than just seven. In response, based on a proposed method by the Japan Stevia Association, we developed an improved method by changing the HPLC conditions and including the use of an octadecylsilyl column instead of an amino-bonded column to enable the rapid and reliable determination of the nine steviol glycosides by an isocratic HPLC-UV method. With the developed method, the nine steviol glycosides can be separately determined, and identified using individual reference chemicals as standards, unlike the previous identification method, which was based on the relative retention times. In addition, the single stevioside quantification standard was replaced with both stevioside and rebaudioside A quantification standards. Importantly, the validation of the developed method was successful. The limits of quantification for the nine steviol glycosides were between 0.2% and 0.6%. The developed assay method for the nine steviol glycosides was proposed to JECFA and adopted as the revised assay method for the steviol glycosides specifications at its 73rd meeting in 2010.

关键词： Steviol Glycosides Stevioside Rebaudioside A Reversed-Phase HPLC JECFA Specifications

油中溶解气体分析及其在变压器维护方面的应用

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

变压器 1988年第4期 37-39页

作者： T.kawamura 贾瑞君

1.前言分析油中溶解气体被广泛地用于充油变压器,它可以有效地预防变压器的事故。这种方法的研究大约开始在25年以前,从那时起,对14000台变压器进行了应用。有关利用气体分析对变压器进行维护和监视的论文,引起科技界的注意。本文给出... 详细信息

1.前言分析油中溶解气体被广泛地用于充油变压器,它可以有效地预防变压器的事故。这种方法的研究大约开始在25年以前,从那时起,对14000台变压器进行了应用。有关利用气体分析对变压器进行维护和监视的论文,引起科技界的注意。本文给出日本电气协作研究协会总结

关键词：变压器落解气体组分协作研究绝缘材料绝缘料电工材料溶解气体气体分析局部过热电气试验脱气率特征气体电弧放电

Differences in the Histopathology and Cytokine Expression Pattern between Chronological Aging and Photoaging of Hairless Mice Skin

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Modern Research in Inflammation 2014年第3期3卷 82-89页

作者： Masaaki Sakura Yoichi Chiba Emi Kamiya Ayako Furukawa Noriko kawamura Masanao Niwa Minoru Takeuchi Yasushi Enokido Masanori Hosokawa Department of Pathology Institute for Developmental Research Aichi Human Service Center Kasugai Japan Faculty of Life Science Kyoto Sangyo University Kyoto Japan Faculty of Pharmaceutical Sciences Suzuka University of Medical Science Suzuka Japan Fundamental Research Laboratory General Research & Development Institute Hoyu Co. Ltd. Nagakute Japan

Skin photoaging is a complex, multifactorial process resulting in functional and structural changes of the skin, and different phenotypes from chronological skin aging are well-recognized. Ultraviolet (UV)-irradiated hairless mice have been used as a skin photoaging animal model. However, differences in morphology and gene expression patterns between UV-induced and chronological skin changes in this mouse model have not been fully elucidated. Here we investigated differences in histopathology and cytokine expression between UV-irradiated and non-irradiated aged hairless mice to clarify the factor(s) that differentiate photoaging from chronological skin aging phenotypes. Eight-week-old HR-1 hairless mice were divided into UV-irradiated (UV-irradiated mice) and non-irradiated (control mice) groups. Irradiation was performed three times per week for 10 weeks. In addition, 30-week-old HR-1 hairless mice were reared until 70 weeks of age without UV irradiation (aged mice). Histopathologies revealed that the flattening of dermal-epidermal junctions and epidermal thickening were observed only in UV-irradiated mice. Decreases in fine elastic fibers just beneath the epidermis, the thickening of elastic fibers in the reticular dermis, and the accumulation of glycosaminoglycans were more prominent in UV-irradiated mice as compared to non-irradiated aged mice. Quantitative PCR analyses revealed that UV-irradiated mice showed an increase in the expression of IFN-γ. In contrast, aged mice exhibited proportional up-regulation of both pro-inflammatory and anti-inflammatory cytokines. The IFN-γ/IL-4 ratio, an indicator for the balance of pro-inflammatory and anti-inflammatory cytokines, was significantly higher in UV-irradiated mice as compared to control and non-irradiated aged mice. An elevated IFN-γ/IL-4 ratio was also observed in aged senescence-accelerated mouse-prone 1 (SAMP1) mice, a spontaneous skin photoaging model we recently reported. Thus, an imbalance between pro-inflam

关键词： Photoaged Skin Chronologically-Aged Skin Pro-Inflammatory Cytokines Anti-Inflammatory Cytokines Hairless Mice

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

La Fontaine书店

中国建筑装饰装修 2012年第9期 164-167页

作者： kawamura-ganjavian Anne Laure Lechat NOR architectes

LaFontaine书店原本位于瑞士洛桑联邦理工大学校园．它是一间有着悠久历史的书店。2010年时．它已经被搬到了由SANAA建筑事务所设计的新劳力士学习中心。为了能与所在建筑的设计语言相融合．设计师按照主题分类，为书店设计了5个圆形的... 详细信息

LaFontaine书店原本位于瑞士洛桑联邦理工大学校园．它是一间有着悠久历史的书店。2010年时．它已经被搬到了由SANAA建筑事务所设计的新劳力士学习中心。为了能与所在建筑的设计语言相融合．设计师按照主题分类，为书店设计了5个圆形的书柜。

关键词：书店建筑事务所 La 设计师大学校园主题分类设计语言劳力士

维普期刊数据库

Combined Effects of Blood Pressure and Aldosterone on Cardiac Left Ventricular Mass Index—Ethnic Differences between Kazakh, Uygur and Han Subjects

在线全文

学校读者我要写书评

暂无评论

World Journal of Cardiovascular Diseases 2014年第3期4卷 99-105页

作者： Masakatsu Ohta Yuji Kasamaki Yukio Ozawa Atsushi Hirayama Tomohiro Nakayama Hiroshi kawamura Dilxat Himit Masayoshi Soma Yoichi Izumi Department of Cardiology Kanazawa Medical University Himi Municipal Hospital Himi Japan Department of Internal Medicine Nippon Dental University Tokyo Japan Department of Science and Research Xinjiang Medical University Urumqi China Division of Cardiology Department of Medicine Nihon University School of Medicine Tokyo Japan Division of General Medicine Department of Medicine Nihon University School of Medicine Tokyo Japan Division of Laboratory Medicine Department of Pathology and Microbiology Nihon University School of Medicine Tokyo Japan

Previous Background: Hemodynamic factors, like blood pressure, have been established to be major determinants of cardiac left ventricular structure. However, several factors other than blood pressure to influence cardiac mass have been implicated. When we did medical survey, cardiac left ventricular mass index (LVMI) of one ethnic group that had higher blood pressure was found to be smaller than that of the other ethnic groups with a lower blood pressure. Such contradicted data from the present study were analyzed combining blood pressure, LVMI and chemical parameters obtained from blood and urine. Methods: In a medical survey conducted in Xinjiang, China, 279 people (65 - 70 years old) from three ethnic groups (Kazakh, Uygur and Han) from two separated regions provided blood and urine samples and underwent echocardiography and 24-h ambulatory blood pressure monitoring (ABPM). Results: Systolic and diastolic blood pressure obtained from ABPM and urinary sodium excretion values were significantly higher in Kazakh than that in Uygur and Han. However, LVMI in Kazakh was lower than that in other 2 groups. Plasma aldosterone concentration (PAC) and plasma renin activity (PRA) were significantly lowest in Kazakh. The values of LVMI in all ethnic groups were positively related to both blood pressure and PAC. An inverse correlation was identified between PAC and urinary sodium excretion value. Conclusion: Although higher blood pressure in Kazakh subjects, their LVMI was lower than those of Uygur and Han, whose blood pressure was lower than that in Kazakh. These results suggest that blood pressure is not always a determinant for LVMI value. There is a possibility that relatively lower PAC resulted from higher sodium intake suppressed the rise in LVMI caused by higher blood pressure in Kazakh.

关键词： Left Ventricular Mass Aldosterone Blood Pressure Salt Intake

Bipolar I disorder and expressed emotion of families: A cohort study in Japan

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Psychiatry 2012年第4期2卷 258-261页

作者： Shinji Shimodera Yukiko Yonekura Sosei Yamaguchi Aoi kawamura Masafumi Mizuno Shimpei Inoue Toshi A. Furukawa Yoshio Mino Department of Cognitive-Behavioral Medicine Kyoto University Graduate School of Medicine/School of Public Health Kyoto Japan Department of Neuropsychiatry Kochi Medical School Kochi University Kochi Japan Department of Neuropsychiatry Toho University School of Medicine Tokyo Japan Department of Psychiatric Rehabilitation National Institute of Mental Health National Center of Neurology and Psychiatry Tokyo Japan Department of Psychiatry Mino Clinic Okayama Japan Department of Social Welfare Kansai University of Social Welfare Hyogo Japan

The relationships between expressed emotion (EE) of the families and the course of bipolar disorder have been examined only in a limited number of cohort studies. No study has yet been reported from Asia. The subjects were 12 patients that had been diagnosed with bipolar I disorder according to DSM-IV and their 12 key family members. The families of the patients were interviewed using the Camberwell Family Interview (CFI) within 2 weeks of the admission of the patients, and their EE were evaluated. The patients were then followed up for 9 months after their discharge from the hospital. The patients were divided into a high-EE group and a low-EE group using the cut-off based on the number of critical comments (CC) and emotional overinvolvement (EOI), and the 9-month relapse risk was compared. When the subjects with 3 or more CC or an EOI score of 3 or more were regarded as the high-EE group, and the others as the low-EE group, the 9-month relapse risk was 100% (3/3) for the high EE group and 0% (0/9) for the low EE group. (Fisher’s exact test p = 0.005) EE based on the CFI appear to be correlated with relapse in bipolar I disorder in Japan.

关键词： Expressed Emotion Family Bipolar Disorder

鲐鱼(Pneumatopholus japonicus)和竹(竹夹)鱼(Trachurus japonicus)在灯光下和黑暗中的吞饵活动

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国外水产 1981年第2期 43-45页

作者： GUNZO kawamura YUKIYOSHI IKEZAKI 蒋志豪

为获得钓渔业方面有价值的基本知识,作者使用水下接触电子管观察了鲐鱼和竹筴鱼在灯光下和黑暗中对静止饵料的吞饵活动,观察结果如下:1,这两种鱼在黑暗中如同在灯光下一样,均能聚集在静止饵料周围且都有吞饵活动.2.竹笑鱼在灯光下的吞... 详细信息

为获得钓渔业方面有价值的基本知识,作者使用水下接触电子管观察了鲐鱼和竹筴鱼在灯光下和黑暗中对静止饵料的吞饵活动,观察结果如下:1,这两种鱼在黑暗中如同在灯光下一样,均能聚集在静止饵料周围且都有吞饵活动.2.竹笑鱼在灯光下的吞饵次数高于在黑暗中吞饵次数.鲐鱼则反之.3.鲐鱼出现这一情况的原因,可认为是由于饵料扎装于钩上的方法不妥所引起.4.使用饵料的鲜度对两种鱼的吞饵活动均有很大影响,其吞饵次数随着时间的推移按比例减少.鲜度最好的饵料能引起最多的吞饵活动.5.根据试验结果,可得出的结论是:就钓渔业而言,将饵料扎装于钓钩上时应十分仔细,且饵料要尽可能的经常调换.

关键词：饵料鲜度品质特性 Pneumatopholus japonicus Trachurus japonicus 水生动物鱼类鲐鱼电子设备电子管竹笑

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

热带和温带禾本科牧草中半纤维素的单糖组成

草原与草坪 1988年第4期 18-19页

作者： O.kawamura 王民江许建

本文就三种热带禾草（C;）和二种温带禾草（C;）中半纤维素的单糖组成进行了研究。结果表明热带禾草的半纤维素含量普遍高于温带禾草的;随着禾草的成熟,增加的半纤维素主要是由木糖组成的。本文还讨论了不同品种禾草的单糖组成及其差异。

关键词：禾本科牧草半纤维素禾草温带自然带无芒虎尾草意大利黑麦草多花黑麦草单糖组成