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Irrigation system and land use effect on surface water quality in river, at lake Dianchi, Yunnan, China

Journal of Environmental Sciences 2013年第6期25卷 1107-1116页

作者： takashi tanaka Takahiro Sato Kazuo Watanabe Ying Wang Dan Yang Hiromo Inoue Kunzhi Li Tatsuya Inamura Graduate School of Agriculture Kyoto University Biotechnology Research Center Kunming University of Science and Technology Crop and Environmental Sciences Division International Rice Research Institute Center for Southeast Asian Studies Kyoto University

The surface water samples were collected in river Dahe and its tributaries, which flow into severely eutrophic lake Dianchi, Yunnan Province, China, in order to elucidate factors controlling water quality fluctuations. The temporal and spatial distribution of water quality tendency was observed. The water quality of each river is dependent on the hydrology effect such water gate and circulating irrigation system. We must consider the hydrology effect to accurately understand water quality variations of river in this study field. In river without highly circulating irrigation system or water gate effect, the downstream nitrate nitrogen （NO3-N） concentration increase occurred in area dominated by open field cultivation, whereas the NO3-N concentration was constant or decreased in area dominated by greenhouse land use. This result suggests that greenhouse covers the soil from precipitation, and nitrate load of greenhouse could be less than that of open field cultivation while the rainfall event. In the upper reaches of river, where is dominated by open field cultivation, there were no sharp increase dissolved molybdate reactive phosphorus and total phosphorus concentration, but P load was accumulated in the lower reaches of river, whose predominant land use is greenhouse. Although the P sources is unclear in this study, greenhouse area may have potential of P loads due to its high P content in greenhouse soil. Considering hydrology effect is necessary to determine what the major factor is influencing the water quality variation, especially in area with highly complicated irrigation system in this studying site.

关键词： lake Dianchi eutrophication surface water quality land use plastic greenhouse circulating irrigation

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Evaluation of the sperm DNA fragmentation index in infertile Japanese men by in-house flow cytometric analysis

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Asian Journal of Andrology 2022年第1期24卷 40-44页

作者： Akiyoshi Osaka Hiroshi Okada Sae Onozuka takashi tanaka Toshiyuki Iwahata Yukihito Shimomura Yoshitomo Kobori Kazutaka Saito Kouhei Sugimoto Department of Urology Dokkyo Medical University Saitama Medical Center2-1-50 MinamikoshigayaKoshigayaSaitama 343-8555Japan International Center for Reproductive Medicine Dokkyo Medical University Saitama Medical Center2-1-50 MinamikoshigayaKoshigayaSaitama 343-8555Japan

Semen analysis has long been used to evaluate male ***,several sperm function tests have been *** those,the sperm DNA fragmentation index(DFI),which describes the status of the sperm DNA,is thought to be a suitable parameter for evaluating male ***,there have been no large-scale studies on the sperm DFI of Japanese ***,we investigated the feasibility of using an in-house flow cytometry-based sperm DFI analysis based on the sperm DNA fragmentation test of sperm chromatin structure assay(SCSA)to assess male fertility in *** study enrolled 743 infertile and 20 fertile Japanese *** evaluate reproducibility,inter-and intraobserver precision was analyzed.A receiver operating characteristic curve analysis was used to set a cutoff value for the sperm DFI to identify men who could father children by timed intercourse or intrauterine *** variability of the sperm DFI among fertile volunteers was *** relationship between semen parameters and the sperm DFI was assessed by Spearman’s rho test.A precision analysis revealed good reproducibility of the sperm *** cutoff value of sperm DNA fragmentation in infertile men was 24.0%.Semen volume had no relationship with the sperm *** concentration,sperm motility,total motile sperm count,and percentage of normal-shaped sperm were significantly and negatively correlated with the sperm *** median sperm DFI was smaller in fertile volunteers(7.7%)than that in infertile men(19.4%).Sperm DNA fragmentation analysis can be used to assess sperm functions that cannot be evaluated by ordinary semen analysis.

关键词： DNA fragmentation flow cytometry male infertility semen analysis spermatozoa

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Identification of Active Component of Hachimi-jio-gan Ameliorating Diabetic Nephropathy

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Journal of Integrative Medicine（双语） 2022年第1期11卷 1-7页

作者： Chan Hum Park takashi tanaka Takako Yokozawa Institute of New Frontier Research Team Hallym Clinical and Translational Science InstituteHallym UniversityChuncheon24252Republic of Korea Graduate School of Biomedical Sciences Nagasaki UniversityNagasaki852-8521Japan Graduate School of Science and Engineering for Research University of ToyamaToyama930-8555Japan

Conventional medicine-based Chinese herbal prescriptions,have fascinated much attention due to their extensive and unique diversity of biological effects without toxicity and/or adverse *** with Hachimi-jio-gan(Ba-Wei-Di-Huang-Wan in Chinese)improved the dysregulated levels of hyperglycemic condition-related oxidative stress generation,advanced glycation endproduct generation,and renal function *** results indicate that Hachimi-jio-gan is a prospective therapeutic agent against the pathogenesis of diabetic *** iridoid glycosides and polyphenol are the active compounds of Corni Fructus,the active component of Hachimi-jio-gan,against kidney damage caused by ***,major components of the Corni Fructus,morroniside and 7-O-Galloyl-D-sedoheptulose(GS)are considered to be important contributors to prevent and/or delay the onset of kidney damage caused by *** of all,GS is expected to be developed as a novel therapeutic drug for the diabetes-accelerated kidney damage.

关键词： Diabetic nephropathy Hachimi-jio-gan Corni Fructus Morroniside 7-O-Galloyl-D-sedoheptulose

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Natural history of major complications in hepatitis C virus-related cirrhosis evaluated by per-rectal portal scintigraphy

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World Journal of Gastroenterology 2005年第25期11卷 3882-3886页

作者： Etsushi Kawamura Daiki Habu Takehiro Hayashi Ai Oe Jin Kotani Hirotaka Ishizu Kenji Torii Joji Kawabe Wakaba Fukushima takashi tanaka Shuhei Nishiguchi Susumu Shiomi Department of Nuclear Medicine Department of Hepatology Department of Public Health

AIM: To examine the correlation between the porto-systemic hypertension evaluated by portal shunt index (PSI) and life-threatening complications, including hepatocellular carcinoma (HCC), liver failure (Child-Pugh stage progression), and esophagogastric varices. METHODS: Two hundred and twelve consecutive subjects with HCV-related cirrhosis (LC-C) underwent per-rectal portal scintigraphy. They were allocated into three groups according to their PSI: group Ⅰ, PSI≤10%; group Ⅱ, 10%

关键词： Portal shunt index Porto-systemic shunting Per-rectal portal sdntigraphy Natural history Liver cirrhosis HCV Hepatocellular carcinoma Liver failure Varix

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A CHALLENGE TO DEVELOPAN INEXPENSIVE“SPIRAL VORTEX PUMP”

A CHALLENGE TO DEVELOPAN INEXPENSIVE“SPIRAL VORTEX PUMP”

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亚州仿真会议暨第五届系统仿真和科学计算国际会议

作者： Tomohiro Tsujimoto Kiyotaka Iwasaki Wataru Saeki Kei Yoshida Makoto Arita Mitsuo Umezu Kou Imachi Kazuhiko Ishihara takashi tanaka Integrative Bioscience and Biomedical Engineering Graduate School of Science and Engineering Waseda UniversityTokyo Japan Integrative Bioscience and Biomedical Engineering Graduate School of Science and Engineering Waseda UniversityTokyo Japan Integrative Bioscience and Biomedical Engineering Graduate School of Science and Engineering Waseda UniversityTokyo Japan Integrative Bioscience and Biomedical Engineering Graduate School of Science and Engineering Waseda UniversityTokyo Japan Integrative Bioscience and Biomedical Engineering Graduate School of Science and Engineering Waseda UniversityTokyo Japan Integrative Bioscience and Biomedical Engineering Graduate School of Science and Engineering Waseda UniversityTokyo Japan The University of Tokyo Tokyo Japan The University of Tokyo Tokyo Japan Yasuhisa Biomechanics Inc. Tokyo Japan.

It is well known that the cost of artificial heart is more expensive than other cardiovascular devices and its cost still tends to increase. The cost is one of the important factors to be chosen by

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太阳热处理对小白菜根肿病防治效果的研究

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浙江农业学报 2020年第1期32卷 98-107页

作者：沈璐李勤超田中贵稻村达也伊日布斯昆明理工大学生命科学与技术学院云南昆明650504 日本京都大学农学研究科日本京都606-8502

为探讨太阳热处理对小白菜根肿病的防治效果,以超级小黄白为供试材料,测定太阳热处理前后的土壤理化性质、根肿菌休眠孢子数量、土壤微生物多样性及发病率和病情指数,评价太阳热处理对小白菜根肿病的影响。研究表明:经太阳热处理后土壤0... 详细信息

为探讨太阳热处理对小白菜根肿病的防治效果,以超级小黄白为供试材料,测定太阳热处理前后的土壤理化性质、根肿菌休眠孢子数量、土壤微生物多样性及发病率和病情指数,评价太阳热处理对小白菜根肿病的影响。研究表明:经太阳热处理后土壤0~10 cm处pH由4.96提高至5.60,根肿菌休眠孢子的浓度由1.09×106 g-1减少至5.74×105 g-1。变性梯度凝胶电泳(DGGE)结果证明,太阳热处理提高了土壤细菌微生物多样性,其中0~10 cm处和10~20 cm处土壤细菌微生物群落的香浓维纳指数分别由1.51、0.91提高到1.98、1.53,0~10 cm处根肿病的发病率由87.10%降低到49.12%,病情指数由45.24降低到16.96,防治效果明显。本研究为太阳热处理在实际农业生产中的应用及对根肿病的防治提供了理论基础。

关键词：小白菜根肿病太阳热处理发病率细菌多样性

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Current Ramp-up by Microwave Power in the LATE Device

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Plasma Science and Technology 2009年第4期11卷 394-396页

作者： takashi MAEKAWA Hitoshi tanaka Masaki UCHIDA Graduate School of Energy Science Kyoto University

In the low aspect ratio torus experiment （LATE） device, plasma current is initiated and ramped up to 20 kA solely by microwave power at the electron cyclotron （EC） range of frequency with a ramp of the external vertical field By for the radial equilibrium of plasma torus at larger currents. Measurements suggest that an energetic electron tail in the energy range of about 200 keV carries the current. The line averaged electron density is higher than the plasma cutoff density, suggesting that tail electrons might be driven by electron Bernstein waves modeconverted from the launched electromagnetic waves.

关键词： current ramp-up microwave electron cyclotron range of frequency

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Formation of Low Aspect Ratio Torus Equilibria by ECH in the LATE Device

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Plasma Science and Technology 2006年第1期8卷 95-98页

作者： takashi MAEKAWA Hitoshi tanaka Masaki UCHIDA Tomokazu YOSHINAGA Graduate School of Energy Science Kyoto UniversityKyoto 606-8502Japan

By ECH under a steady By field, a closed field equilibrium of a low aspect ratio as low as R/a = 1.4 is spontaneously formed in the LATE device. After the spontaneous formation, the plasma current has increased further up to Ip = 7.2 kA by 2.45 GHz, 30 kW and Ip = 11 kA by 5 GHz, 120 kW, by increasing the microwave power with a slow ramp of By for the equilibrium of the plasma loop at larger currents. Both amount to 12% of the total toroidai coil current. ECH/ECCD at 2nd harmonic resonance of EBW supports the plasma. An outline of the theoretical considerations for the formation process is presented.

关键词： ECH spherical tokamaks non-inductive start-up

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Prophylactic managements of hepatitis B viral infection inliver transplantation

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World Journal of Gastroenterology 2016年第1期22卷 165-175页

作者： takashi Onoe Hiroyuki Tahara Yuka tanaka Hideki Ohdan Division of Applied Immunobiology Institute for Clinical ResearchNational Hospital OrganizationKure Medical Center/Chugoku Cancer CenterHiroshima 737-0023Japan Gastroenterological and Transplant Surgery Applied Life SciencesInstitute of Biomedical and Health SciencesHiroshima UniversityHiroshima 734-8551Japan

Liver transplantation(LT)is a considerably effective treatment for patients with end-stage hepatitis B virus(HBV)-related liver ***,HBV infection often recurs after LT without *** the1990s,the treatment for preventing HBV reinfection after LT has greatly progressed with the introduction of hepatitis B immunoglobulin(HBIG)and nucleos(t)ide analogues(NAs),resulting in improved patient *** combination therapy consisting of high-dose HBIG and lamivudine is highly efficacious for preventing the recurrence of HBV infection after LT and became the standard prophylaxis for HBV ***,mainly due to the high cost of HBIG treatment,an alternative protocol for reducing the dose and duration of HBIG has been ***,combination therapy using low-dose HBIG and NAs is considered as the most efficacious and cost-effective prophylaxis for post-LT HBV ***,NA monotherapy and withdrawal of HBIG from combination therapy,along with the development of new,potent high genetic barrier NAs,have provided promising efficacy,especially for low-risk *** review summarizes the prophylactic protocol and their efficacy including prophylaxis of de novo HBV infection from anti-HBc antibody-positive *** addition,challenging approaches such as discontinuation of all prophylaxis and active immunity through hepatitis B vaccination are discussed.

关键词： Liver transplantation Hepatitis B infection prophylaxis nucleos(t)ide analogue anti-hepatitis Bimmunoglobulin

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Clinicopathological features of minute pharyngeal lesions diagnosed by narrow-band imaging endoscopy and biopsy

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World Journal of Gastroenterology 2012年第44期18卷 6468-6474页

作者： takashi Kumamoto Kazuhiro Sentani Shiro Oka Shinji tanaka Wataru Yasui Kumamoto Gastrointestinal Clinic Hiroshima 730-0051Japan Department of Molecular Pathology Hiroshima University Graduate School of Biomedical SciencesHiroshima 734-8551Japan Department of Endoscopy Hiroshima University HospitalHiroshima 734-8551Japan

AIM:To evaluate the utility of magnified narrow-band imaging(NBI) endoscopy for diagnosing and treating minute pharyngeal ***:Magnified NBI gastrointestinal examinations were performed by the first author.A magnification hood was attached to the tip of the endoscope for quick *** of the examinations were performed under *** NBI examinations were performed for all of the pharyngeal lesions that had noticeable brownish areas under unmagnified NBI observation,and an intrapapillary capillary loop(IPCL) classification was made.A total of 93 consecutive pharyngeal lesions were diagnosed as IPCL type Ⅳ and were suspected to represent ***-two lesions of approximately 1 mm in diameter were biopsied in the clinic,and 17 lesions with larger diameters were resected by endoscopic submucosal dissection(ESD) at the Hiroshima University *** addition to the histological diagnoses,the lesion diameters were microscopically measured in 45 of the 62 *** of the 62 biopsied patients received endoscopic follow ***:Minute pharyngeal lesions were diagnosed in 93 of approximately 3000 patients receiving magnified NBI examinations at the *** the 93 patients with IPCL type Ⅳ lesions,80 were men,and 13 were ***-six were drinkers,and 57 were *** had esophageal ***-one lesions were located on the posterior hypopharyngeal wall,and 72 lesions were located on the posterior oropharyngeal *** 93 lesions were flat and showed similar findings in the magnified and unmagnified NBI *** almost all of the IPCL type Ⅳ lesions showed faint redness when examined under white light,it was difficult to diagnose the lesions using only this technique because the contrast was weaker than that achieved in the NBI *** the 93 lesions,only 3 had diameters greater than 2.1 ***-two lesions of approximately 1 mm were biopsied in the clinic,whereas 17 larger lesions were tre

关键词： Biopsy Minute pharyngeal lesions Narrow-band imaging

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