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中国人民大学数十年风雨网球路

网球大师 2012年第2期 122-123页

作者： Eden kenzo 晓燕

在校园大力推广网球运动,使更多的学生参与并从网球运动中受益,对丰富素质教育的内容和手段,从而更好地完成高等教育人才培养使命具有重要的价值和作用。

关键词：中国人民大学网球运动员素质教育学生参与高等教育人才培养行为规范网球场锦标赛男子北京高校

Characterization of Orchard Fields Based on Soil Fertility Index (SOFIX)

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Journal of Agricultural Chemistry and Environment 2020年第3期9卷 159-176页

作者： Pitchayapa Pholkaw Quoc Thinh Tran Takamitsu Kai Taiki Kawagoe kenzo Kubota Kiwako S. Araki Motoki Kubo Department of Biotechnology Faculty of Life Sciences Ritsumeikan University Kusatsu Japan Kurokawa Field Science Center Meiji University Kawasaki Japan

Soil samples from 139 agricultural orchard fields (apple, grape, tea, and others) were analyzed using the soil fertility index. From these samples, an orchard field database was constructed and the soil properties between orchard, upland, and paddy fields were compared. The average value of bacterial biomass in the orchard fields was 7.4 × 108 cells/g-soil, ranging from not detected (lower than 6.6 × 106 cells/g-soil) to 7.7 × 109 cells/g-soil. The average values of total carbon (TC), total nitrogen (TN), total phosphorus (TP), and total potassium (TK), were 24,000 mg/kg (2670 to 128,100 mg/kg), 1460 mg/kg (133 to 6400 mg/kg), 1030 mg/kg (142 to 5362 mg/kg), and 5370 mg/kg (1214 to 18,155 mg/kg), respectively. The C/N and C/P ratios were 19 (3 to 85) and 27 (2 to 101), respectively. Soil properties of the orchard fields were compared with those of the upland and the paddy fields. The average value of bacterial biomass in the orchard fields was almost the same as that in the upland fields (8.0 × 108 cells/g-soil), but the number was lower than that in the paddy fields (12.9 × 108 cells/g-soil). The average values of TC and TN in the orchard fields fell between those in the upland fields (TC: 33,120 mg/kg, TN: 2010 mg/kg) and the paddy fields (TC: 15,420 mg/kg, TN: 1080

关键词： Orchard Field Soil Fertility Index (SOFIX) Bacterial Biomass

Degradation of Bioplastics in Soil and Their Degradation Effects on Environmental Microorganisms

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Journal of Agricultural Chemistry and Environment 2016年第1期5卷 23-34页

作者： Dinesh Adhikari Masaki Mukai kenzo Kubota Takamitsu Kai Nobuyuki Kaneko Kiwako S. Araki Motoki Kubo Department of Biotechnology Faculty of Life Sciences Biwako-Kusatsu Campus Ritsumeikan University Kusatsu Shiga Japan

Degradation of three kinds of bioplastics and their effects on microbial biomass and microbial diversity in soil environment were analyzed. The degradation rate of bioplastic in soil was closely related to the main components in the bioplastics. Poly (butylene succinate)-starch (PBS-starch) and poly (butylene succinate) (PBS) were degraded by 1% to 7% after 28 days in a soil with an initial bacterial biomass of 1.4 × 109 cells/g-soil, however poly lactic acid (PLA) was not degraded in the soil after 28 days. When the powdered-bioplastics were examined for the degradation in the soil, PBS-starch also showed the highest degradability (24.4% degradation after 28 days), and the similar results were obtained in the case of long-term degradation experiment (2 years). To investigate the effect of bacterial biomass in soil on biodegradability of bioplastics, PBS-starch was buried in three kinds of soils differing in bacterial biomass (7.5 × 106, 7.5 × 107, and 7.5 × 108 cells/g-soil). The rate of bioplastic degradation was enhanced accompanied with an increase of the bacterial biomass in soil. 16S rDNA PCR-DGGE analysis indicated that the bacterial diversity in the soil was not affected by the degradation of bioplastics. Moreover, the degradation of bioplastic did not affect the nitrogen circulation activity in the soil.

关键词： Bioplastics Biodegradation Soil Microorganisms Bacterial Diversity

Treatment Outcomes in Head and Neck Cancer Patients 80 Years Old and over

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International Journal of Otolaryngology and Head & Neck Surgery 2015年第6期4卷 401-408页

作者： Tomonori Terada Nobuhiro Uwa Kosuke Sagawa Takeshi Mohri Nobuo Saeki Kota Kida kenzo Tsuzuki Masafumi Sakagami Department of Otolaryngology—Head and Neck Surgery Hyogo College of Medicine Nishinomiya City Japan

Background: With the recent aging of society, the need for medical treatment of elderly patients with head and neck cancer seems to have been increasing. Method: The present study analyzed all 103 patients with head and neck cancer ≥80 years, and we compared results with those of the previous generation (Group P;range: 75 - 79 years) comprising 104 patients treated in the same period. Results: We provided treatment just as wanted and could not choose it often. The reasons were oncological factors such as unresectable tumor or distant metastasis, refusal of treatment, and physical factors such as poor PS or number of comorbidities. Conclusion: Treatment choices should be based on the wishes and motivations of the patient and the medical assessment of physical function. When a patient ≥80 years old is treated, the high incidence of complications and severity of the disease should be considered.

关键词： 80 Years Old and over Elderly Patients Head and Neck Cancer Treatment

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L-苯丙氨酸生产方法及新菌株

氨基酸杂志 1991年第1期13卷 50-54页

作者： Jokozeki kenzo 刘序章

L-苯丙氨酸(以下缩写成苯丙氨酸)是合成天门冬苯丙氨酸甲苯酯的重要前体物。天门冬苯丙氨酸是近年来最受人们重视的一种二肽甜味剂。这样就关系到了苯丙氨酸生产工艺问题。在这一工艺程序中最重要的是如何经微生物反应由肉桂酸与氨苯供... 详细信息

L-苯丙氨酸(以下缩写成苯丙氨酸)是合成天门冬苯丙氨酸甲苯酯的重要前体物。天门冬苯丙氨酸是近年来最受人们重视的一种二肽甜味剂。这样就关系到了苯丙氨酸生产工艺问题。在这一工艺程序中最重要的是如何经微生物反应由肉桂酸与氨苯供体生产苯丙氨酸。

关键词： L-苯丙氨酸发酵生产生产菌

Suitable Soil Conditions for Tomato Cultivation under an Organic Farming System

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Journal of Agricultural Chemistry and Environment 2018年第3期7卷 117-132页

作者： Dinesh Adhikari Yuya Kobashi Takamitsu Kai Taiki Kawagoe kenzo Kubota Kiwako S. Araki Motoki Kubo Department of Biotechnology Faculty of Life Sciences Ritsumeikan University Kusatsu Japan

This study was conducted to determine the suitable soil conditions for tomato cultivation under an organic farming system. Tomatoes were cultivated in chemically and organically fertilized experimental fields from 2013 to 2015 in Moriyama City, Shiga prefecture, Japan. Organically and chemically fertilized soils had different total carbon (TC) and total nitrogen (TN) contents, and different carbon-to-nitrogen ratios (C/N ratios). The tomato yields varied from 1290 to 5960 kg/0.1ha in the organically fertilized fields. The organic soil conditions for the highest tomato yield showed a TC content of ~33,000 mg/kg, TN content of ~1600 mg/kg, and a C/N ratio of ~21. The yield was reproducible in the organic fields under similar values of TC, TN, and C/N ratio in the soil. Significantly higher nitrogen and phosphorus circulation activities were observed in the high-yielding fields. Appropriate control of TC, TN, and C/N ratio is necessary for the enhancement of both microbial activity and tomato yield. Values of the important tomato quality parameters (lycopene, glutamic acid, and acid content) were also increased in the high- yielding tomato fields. We therefore suggest that a suitable soil condition for improving both the yield and quality of tomatoes in an organic farming system is TC of 30,000 - 36,000 mg/kg, TN of 1600 - 1900 mg/kg, and a C/N ratio of 18 - 21.

关键词： Tomato Bacterial Biomass Nitrogen Circulation Activity Phosphorus Circulation Activity SOFIX

Sitagliptin improves vascular endothelial function in Japanese type 2 diabetes patients without cardiovascular disease

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Journal of Diabetes Mellitus 2012年第3期2卷 338-345页

作者： Kazunari Suzuki Kentaro Watanabe Tatsuya Suzuki Motoshi Ouchi Shoko Futami-Suda Yoshimasa Igari Hiroshi Nakano kenzo Oba Department of Internal Medicine (Divisions of Cardiology Hepatology Geriatrics and Integrated Medicine) Nippon Medical School Tokyo Japan

We evaluated the effect of sitagliptin on vascular endothelial function in Japanese type 2 diabetes patients without cardiovascular disease. Subjects included 24 Japanese type 2 diabetes patients without cardiovascular disease. This study was a prospective, open-label, randomized clinical trial. We divided the study subjects into 2 groups: subjects who received sitagliptin 50 mg daily (sitagliptin group, n = 12) and subjects who did not receive sitagliptin (control group, n = 12). Brachial artery flow-mediated dilation (FMD) was measured after overnight fasting. Sitagliptin administration was initiated at 1 month after enrollment in study (baseline). FMD and level of biochemical variables in the sitagliptin and control groups were measured at baseline and 3 months from baseline (3 months). We evaluated the effect of sitagliptin on vascular endothelial function by measuring FMD. FMD at 3 months was significantly higher in the sitagliptin group than in the control group (5.36% ± 2.18% vs 3.41% ± 2.29%, P = 0.040), while FMD at baseline was not significantly different between the 2 groups. In addition, FMD of the sitagliptin group at 3 months was significantly higher than that at baseline (5.36% ± 2.18% vs 3.67% ± 2.30%, P = 0.004), while no significant differences were observed in the FMD of the control group during the study period. The change in the adiponectin from baseline to 3 months was significantly higher in the sitagliptin group than that in the control group (0.82 ± 2.18 μg/mL vs 0.01 ± 0.55 μg/mL, P = 0.039). Sitagliptin improves vascular endothelial function of the brachial artery in Japanese type 2 diabetes patients without cardiovascular disease. Furthermore, elevation of adiponectin may induce reduction of endothelial dysfunction in type 2 diabetes patients treated with sitagliptin.

关键词： Sitagliptin Endothelial Function Flow-Mediated Dilation Type 2 Diabetes Mellitus Adiponectin

Utilization of Wood Biomass for Organic Soil Based on the Soil Fertility Index (SOFIX)

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Journal of Agricultural Chemistry and Environment 2019年第4期8卷 224-236页

作者： Pitchayapa Pholkaw Ayaka Muraji Kazuyoshi Maeda Taiki Kawagoe kenzo Kubota Sirilak Sanpa Quoc Thinh Tran Motoki Kubo Department of Biotechnology Faculty of Life Sciences Ritsumeikan University Kusatsu Shiga Japan Division of Microbiology and Parasitology School of Medical Science University of Phayao Phayao Thailand

Possibility of wood biomass for preparing organic soil was examined to construct reproducible and stable organic standard soil. Seven organic soils were constructed from base soils and additive materials based on the recommended values of the soil fertility index (SOFIX) (total carbon ≥ 25,000 mg/kg, total nitrogen ≥ 1500 mg/kg, total phosphorus ≥ 1100, and total potassium of 2500 to 10,000 mg/kg). Base soils were prepared from two types of wood biomass (big- and small-sized wood chips) at 50%, 60%, and 70% (v/v) and other organic materials such as peat moss, black soil, and mountain soil. Additive materials (soybean meal, oil cake, cow manure, and bone meal) were amended into all organic soils at the same amount. Incubation experiment showed that bacterial biomass in all organic soil was greater than 6 × 108 cells/g-soil after addition of 30% of water content for 1 week. In addition, polymerase chain reaction denaturing gradient gel electrophoresis (PCR-DGGE) analysis resulted in a stable bacterial diversity of the organic soil prepared from the small size wood chip at 70%. Chemical properties of all organic soils were within the recommended values of SOFIX. The plant cultivation experiment showed that fresh Brassica rapa var. peruviridis weights in the organic soils with 50%, 60%, and 70% of small-sized wood chip were 5%, 16%, and 27% higher than that of the chemical fertilizer-amended soil. The organic soil with 70% of small wood chip was the best in the seven organic soils in this study.

关键词： Wood Biomass Organic Soil Soil Fertility Index (SOFIX)

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多复变量与积分公式

国外科技新书评介 2008年第4期 1-2页

作者： kenzo Adachi 朱尧辰 Nagasaki University Japan 中国科学院应用数学研究所

本书是多复变函数的引论。作者应用两种不同方法即积分表示及希尔伯特空间理论的技术着重研究了伪凸域中柯西-黎曼方程的解的估计及伪凸域的子流形中正则函数的开拓，这是近50年来逐步发展起来的多复变理论的重要成果。

关键词：多复变量积分公式柯西-黎曼方程多复变函数正则函数空间理论希尔伯特积分表示