Takashi Yamamoto

Summary

Affiliation: National Institute for Environmental Studies
Country: Japan

Publications

  1. ncbi request reprint Destruction of polychlorinated naphthalenes by a high-temperature melting treatment (GeoMelt process)
    Takashi Yamamoto
    National Institute for Environmental Studies, 16 2 Onogawa, Tsukuba, Ibaraki, 305 8506, Japan
    Environ Sci Pollut Res Int 21:7557-66. 2014
  2. doi request reprint Development of a testing method for asbestos fibers in treated materials of asbestos containing wastes by transmission electron microscopy
    Takashi Yamamoto
    Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, 16 2 Onogawa, Tsukuba, Ibaraki 305 8506, Japan Electronic address
    Waste Manag 34:536-41. 2014
  3. ncbi request reprint Bisphenol A in hazardous waste landfill leachates
    T Yamamoto
    Regional Environment Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
    Chemosphere 42:415-8. 2001
  4. ncbi request reprint Chlorination of bisphenol A in aqueous media: formation of chlorinated bisphenol A congeners and degradation to chlorinated phenolic compounds
    Takashi Yamamoto
    Regional Environment Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
    Chemosphere 46:1215-23. 2002
  5. ncbi request reprint Photodegradation of perfluorooctane sulfonate by UV irradiation in water and alkaline 2-propanol
    Takashi Yamamoto
    National Institute for Environmental Studies, 16 2, Onogawa, Tsukuba, Ibaraki 305 8506, Japan
    Environ Sci Technol 41:5660-5. 2007
  6. ncbi request reprint Analytical methods for phenyltin compounds in polychlorinated biphenyl-based transformer oil samples
    Takashi Yamamoto
    Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies, 16 2 Onogawa, Tsukuba, Ibaraki 305 8506, Japan
    J Chromatogr A 1017:195-206. 2003
  7. ncbi request reprint Behavior of PCNs, PCDDs, PCDFs, and dioxin-like PCBs in the thermal destruction of wastes containing PCNs
    Yukio Noma
    National Institute for Environmental Studies, 16 2 Onogawa, Tsukuba, Ibaraki 305 8506, Japan
    Chemosphere 62:1183-95. 2006
  8. ncbi request reprint PCB decomposition and formation in thermal treatment plant equipment
    Yukari Ishikawa
    National Institute for Environmental Studies, Research Center for Material Cycles and Waste Management, 16 2 Onogawa, Tsukuba, Ibaraki 305 8506, Japan
    Chemosphere 67:1383-93. 2007
  9. ncbi request reprint By-side impurities in chloronaphthalene mixtures of the Halowax series: all 19 chlorophenols
    Y Noma
    National Institute for Environmental Studies, Tsukuba, Japan
    J Environ Sci Health A Tox Hazard Subst Environ Eng 39:2023-34. 2004
  10. ncbi request reprint By-side impurities in chloronaphthalene mixtures of the Halowax series: all 12 chlorobenzenes
    Y Noma
    National Institute for Environmental Studies, Tsukuba, Japan
    J Environ Sci Health A Tox Hazard Subst Environ Eng 39:2011-22. 2004

Collaborators

Detail Information

Publications43

  1. ncbi request reprint Destruction of polychlorinated naphthalenes by a high-temperature melting treatment (GeoMelt process)
    Takashi Yamamoto
    National Institute for Environmental Studies, 16 2 Onogawa, Tsukuba, Ibaraki, 305 8506, Japan
    Environ Sci Pollut Res Int 21:7557-66. 2014
    ..Based on good results of the demonstrative experiment, stock of PCN formulation was successfully treated continuously. ..
  2. doi request reprint Development of a testing method for asbestos fibers in treated materials of asbestos containing wastes by transmission electron microscopy
    Takashi Yamamoto
    Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, 16 2 Onogawa, Tsukuba, Ibaraki 305 8506, Japan Electronic address
    Waste Manag 34:536-41. 2014
    ..Because the evaluation of treated materials by TEM is difficult owing to the limited amount of sample observable, this testing method should be used in conjunction with bulk analytical methods for sure evaluation of treated materials...
  3. ncbi request reprint Bisphenol A in hazardous waste landfill leachates
    T Yamamoto
    Regional Environment Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
    Chemosphere 42:415-8. 2001
    ..The concentrations of bisphenol A in some samples exceeded the EC50 or LC50 levels for aquatic biota. Landfill leachates may be a significant source of bisphenol A found in the environment...
  4. ncbi request reprint Chlorination of bisphenol A in aqueous media: formation of chlorinated bisphenol A congeners and degradation to chlorinated phenolic compounds
    Takashi Yamamoto
    Regional Environment Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
    Chemosphere 46:1215-23. 2002
    ..Several chlorinated phenolic compounds, 2,4,6-trichlorophenol (T3CP), 2,6-dichloro-1,4-benzoquinone (D2CBQ), 2,6-dichloro-1,4-hydroquinone (D2CHQ), C9H10Cl2O2, C9H8Cl2O and C10H12Cl2O2, were also formed by further chlorination...
  5. ncbi request reprint Photodegradation of perfluorooctane sulfonate by UV irradiation in water and alkaline 2-propanol
    Takashi Yamamoto
    National Institute for Environmental Studies, 16 2, Onogawa, Tsukuba, Ibaraki 305 8506, Japan
    Environ Sci Technol 41:5660-5. 2007
    ..Formation of short-chain fluorocarbons such as CF4, C2F6, and C3F8 were also confirmed. This is the first study to confirm photodegradation of PFOS in water and alkaline 2-propanol...
  6. ncbi request reprint Analytical methods for phenyltin compounds in polychlorinated biphenyl-based transformer oil samples
    Takashi Yamamoto
    Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies, 16 2 Onogawa, Tsukuba, Ibaraki 305 8506, Japan
    J Chromatogr A 1017:195-206. 2003
    ..Two used transformer oil samples were analyzed using the analytical methods developed in this study. TePhT and TrPhT were found in both samples...
  7. ncbi request reprint Behavior of PCNs, PCDDs, PCDFs, and dioxin-like PCBs in the thermal destruction of wastes containing PCNs
    Yukio Noma
    National Institute for Environmental Studies, 16 2 Onogawa, Tsukuba, Ibaraki 305 8506, Japan
    Chemosphere 62:1183-95. 2006
    ..1 ng/m3 N for all plant-scale tests, and differences in TEQ emission levels were very small. Adding wastes containing PCNs to MSW will not influence thermal treatment emissions to the environment from modern solid waste incinerators...
  8. ncbi request reprint PCB decomposition and formation in thermal treatment plant equipment
    Yukari Ishikawa
    National Institute for Environmental Studies, Research Center for Material Cycles and Waste Management, 16 2 Onogawa, Tsukuba, Ibaraki 305 8506, Japan
    Chemosphere 67:1383-93. 2007
    ..While the concentration of PCB increased significantly in the primary combustion chamber, the value of toxicity equivalency quantity for dioxin-like PCB decreased in the secondary combustion chamber and the flue gas treatment equipments...
  9. ncbi request reprint By-side impurities in chloronaphthalene mixtures of the Halowax series: all 19 chlorophenols
    Y Noma
    National Institute for Environmental Studies, Tsukuba, Japan
    J Environ Sci Health A Tox Hazard Subst Environ Eng 39:2023-34. 2004
    ....
  10. ncbi request reprint By-side impurities in chloronaphthalene mixtures of the Halowax series: all 12 chlorobenzenes
    Y Noma
    National Institute for Environmental Studies, Tsukuba, Japan
    J Environ Sci Health A Tox Hazard Subst Environ Eng 39:2011-22. 2004
    ....
  11. ncbi request reprint By-side chlorobenzenes and chlorophenols in technical chlorobiphenyl formulations of Aroclor 1268, Chlorofen, Clophen T 64, Kanechlor 600, and Kanechlor 1000
    Y Noma
    National Institute for Environmental Studies, Tsukuba, Japan
    J Environ Sci Health A Tox Hazard Subst Environ Eng 41:35-46. 2006
    ..Then, 2,4,6-TrCPh was the most abundant congener in Kanechlor 600, while 2,4,5-TrCPh was the most abundant congener in Kanechlor 1000...
  12. ncbi request reprint Transmission over large-core few-mode photonic crystal fiber using distance-independent modal dispersion compensation technique
    Taiji Sakamoto
    Opt Express 19:B478-85. 2011
    ....
  13. ncbi request reprint Formation of bromo-substituted triclosan during chlorination by chlorine in the presence of trace levels of bromide
    Kazuho Inaba
    National Institute for Environmental Studies, 16 2 Onogawa, Tsukuba, Ibaraki 305 8506, Japan
    Water Res 40:2931-7. 2006
    ..The rate of decrease of TC due to reaction with chlorine was greatly accelerated by the presence of bromide ion in the system: the rate with only 1 x 10(-5) M bromide ion was three times the rate in the absence of bromide...
  14. doi request reprint Coherent optical MIMO transmission over 20 km GI multi-mode fiber by using digital coherent receiver with mode convergence unit
    Takayoshi Mori
    NTT Access Network Service Systems Laboratories, NTT Corporation, 1 7 1, Hanabatake, Tsukuba, Ibaraki, 305 0805, Japan
    Opt Express 19:16252-8. 2011
    ..We also show numerically that multi channel signals for a coherent optical MIMO transmission can be recovered by employing sufficient mode diversity, even if mode conversion occurs in the transmission fiber...
  15. ncbi request reprint Congener-specific composition of polychlorinated naphthalenes, coplanar PCBs, dibenzo-p-dioxins, and dibenzofurans in the Halowax series
    Yukio Noma
    National Institute for Environmental Studies, 16 2, Onogawa, Tsukuba, Ibaraki 305 8506 Japan
    Environ Sci Technol 38:1675-80. 2004
    ..Congeners that most significantly contributed to TEQs were CN 69, 73, 70, and 63. Total TEQs roughly estimated from the Japanese production of technical PCNs, 210 kg-TEQ, was about half from technical PCBs, 440 kg-TEQ on average...
  16. ncbi request reprint Low distortion slow light in flat Brillouin gain spectrum by using optical frequency comb
    Taiji Sakamoto
    NTT Access Network Service Systems Laboratories, NTT Corporation, 1 7 1 Hanabatake, Tsukuba, Ibaraki, 305 0805 Japan
    Opt Express 16:8026-32. 2008
    ..We have realized a large relative pulse delay of 2.46 while suppressing the broadening factor to less than 1.19 for a pulse with a duration of 5.44 ns...
  17. ncbi request reprint Raman scattering study of Ca-modified lead titanate
    Kihiro Kato
    Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305 8573, Japan
    IEEE Trans Ultrason Ferroelectr Freq Control 54:2599-602. 2007
    ..The frequencies of these subpeaks depend to a great extent on the Ca content and the temperature. These behaviors are discussed on the basis of the anharmonicity of lattice vibrations...
  18. doi request reprint Group velocity dispersion measurement method using sinusoidally phase-modulated continuous wave light based on cyclic nature of optical waveform change by group velocity dispersion
    Takashi Yamamoto
    NTT Access Network Service Systems Laboratories, NTT Corporation, 1 7 1 Hanabatake, Tsukuba, Ibaraki, 305 0805 Japan
    Appl Opt 49:5148-56. 2010
    ....
  19. ncbi request reprint Activity related to the carcinogenicity of plastic additives in the benzophenone group
    Daisuke Nakajima
    Research Centerfor Environmental Risk, National Institutefor Environmental Studies, Onogawa, Tsukuba, Ibaraki 305 8506, Japan
    J UOEH 28:143-56. 2006
    ..In the Ames test, 2-hydroxy-4-octyloxybenzophenone showed pseudo-positive initiation activity. Conversely, 2,4-dihydroxybenzophenone indicated weak promotion activity at 10 microg/ml concentration...
  20. ncbi request reprint Risk factors for the introduction of avian influenza virus into commercial layer chicken farms during the outbreaks caused by a low-pathogenic H5N2 virus in Japan in 2005
    A Nishiguchi
    Epidemiology Team, National Institute of Animal Health, 3 1 5 Kannondai, Tsukuba, Ibaraki 305 0856, Japan
    Zoonoses Public Health 54:337-43. 2007
    ..6; 500-1000 m, OR = 0.8; 1000-1500 m, OR = 20.1; referenced more than 1500 m). We fully believe that strict biosecurity measures should be applied against any incursion points so as not to introduce AIV into more farms...
  21. doi request reprint Boron neutron capture therapy for newly diagnosed glioblastoma: a pilot study in Tsukuba
    T Yamamoto
    Department of Neurosurgery, Graduate School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
    Appl Radiat Isot 67:S25-6. 2009
    ....
  22. ncbi request reprint Control of an outbreak of highly pathogenic avian influenza, caused by the virus sub-type H5N1, in Japan in 2004
    A Nishiguchi
    Department of Epidemiology, National Institute of Animal Health, 3 1 5 Kannondai, Tsukuba, Ibaraki 305 0856, Japan
    Rev Sci Tech 24:933-44. 2005
    ..However, during the eradication campaign, some key issues arose, such as delays in notification by the affected farmers. As a result of these experiences, the relevant laws and HPAI Control Manual have been appropriately revised...
  23. ncbi request reprint Improvement of dose calculation accuracy for BNCT dosimetry by the multi-voxel method in JCDS
    H Kumada
    Department of Research Reactor, Tokai Research Establishment, Japan Atomic Energy Research Institute, Tokai, Ibaraki, Japan
    Appl Radiat Isot 61:1045-50. 2004
    ..These results proved that the multi-voxel calculation enables JCDS to more accurately estimate the absorbed doses to a patient by efficient calculations...
  24. ncbi request reprint Verification of the computational dosimetry system in JAERI (JCDS) for boron neutron capture therapy
    H Kumada
    Department of Research Reactor, Tokai Research Establishment, Japan Atomic Energy Research Institute, Tokai, Ibaraki, Japan
    Phys Med Biol 49:3353-65. 2004
    ..These basic and clinical verifications demonstrated that JCDS has enough performance for the BNCT dosimetry. Further investigations are recommended for precise dose distribution and faster calculation environment...
  25. ncbi request reprint Dynamic change of copper in fly ash during de novo synthesis of dioxins
    Masaki Takaoka
    Departments of Urban and Environmental Engineering, Graduate School of Engineering, Kyoto University, Yoshidahon machi, Sakyo ku, Kyoto 606 8501, Japan
    Environ Sci Technol 39:5878-84. 2005
    ..In this study, we found strong evidence that oxychlorination, the key mechanistic step in the formation of dioxins, occurred in both real MSWI and model fly ash...
  26. doi request reprint Relationship between dynamic change of copper and dioxin generation in various fly ash
    Masaki Takaoka
    Department of Urban and Environmental Engineering, Graduate School of Engineering, Kyoto University, Nishikyo ku, Kyoto 615 8540, Japan
    Chemosphere 73:S78-83. 2008
    ..The dynamic change of copper explained the generated amount and homologue distribution of PCDDs and PCDFs...
  27. ncbi request reprint Synergistic cytotoxicity of acidity and 3,4-Dideoxyglucosone-3-ene under the existence of lactate in peritoneal dialysis fluid
    Tadashi Tomo
    Second Department of Internal Medicine, Faculty of Medicine, Oita University, Oita, Japan
    Ther Apher Dial 9:182-7. 2005
    ..However, the combination of acidity and 3,4-DGE markedly decreased MTT viability under the existence of lactate, strongly suggesting the synergistic cytotoxicity of 3,4-DGE and acidity under the existence of lactate...
  28. ncbi request reprint Follicle-stimulating hormone is indispensable for the last spermatogonial mitosis preceding meiosis initiation in newts (Cynops pyrrhogaster)
    Takashi Yazawa
    Department of Materials and Life Science, Graduate School of Science and Technology, Kumamoto University, Kumamoto 860 8555, Japan
    Biol Reprod 66:14-20. 2002
    ....
  29. ncbi request reprint Detection of an up-regulation of a group of chemokine genes in murine cardiac allograft in the absence of interferon-gamma by means of DNA microarray
    Akio Saiura
    Department of Hepato Biliary Pancreatic and Transplantation Surgery, The University of Tokyo, Tokyo, Japan
    Transplantation 73:1480-6. 2002
    ..To bring the alternative pathway during allograft rejection into more precise focus, we investigated the gene expression profile in murine cardiac allografts in IFN-gamma-/- mice by means of DNA microarray...
  30. ncbi request reprint Structures and electronic properties of the catecholatoiron complexes in relation to catechol dioxygenases: chlorocatecholatoiron complexes are compared to the 3,5-di-tert-butylcatecholatoiron complex in the solid state and in solution
    Takuzo Funabiki
    Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 606 8501, Japan
    J Inorg Biochem 91:151-8. 2002
    ..Remarkable differences between the spin states in solid and in solution were observed with the DTBC complex...
  31. pmc AIM inhibits apoptosis of T cells and NKT cells in Corynebacterium-induced granuloma formation in mice
    Kazuhisa Kuwata
    Department of Cellular Function, Division of Cellular and Molecular Pathology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
    Am J Pathol 162:837-47. 2003
    ..parvum-stimulated livers in vitro. These results indicate that AIM functions to induce resistance to apoptosis within NKT cells and T cells, and supports the host defense in granulomatous inflammation...
  32. ncbi request reprint Amiloride-insensitive currents of the acid-sensing ion channel-2a (ASIC2a)/ASIC2b heteromeric sour-taste receptor channel
    Shinya Ugawa
    Department of Anatomy II, Nagoya City University Medical School, Nagoya 467 8601, Japan
    J Neurosci 23:3616-22. 2003
    ..0. These findings provide persuasive explanations for the amiloride insensitivity of acid-induced responses of rat taste cells...
  33. doi request reprint The structure-activity relationship study on 2-, 5-, and 6-position of the water soluble 1,4-dihydropyridine derivatives blocking N-type calcium channels
    Takashi Yamamoto
    Pharmaceutical Research Laboratory, Ajinomoto Company Inc, 1 1, Suzuki cho, Kawasaki ku, Kawasaki shi, Japan
    Bioorg Med Chem Lett 18:4813-6. 2008
    ..As a consequence of the optimization, 6-dimethylacetal derivative 7 was found to have an effective inhibitory activity against N-type calcium channels with more than 170-fold lower activity for L-type channel compared to that of APJ2708...
  34. doi request reprint The importance of lone pair delocalizations: theoretical investigations on the stability of cis and trans isomers in 1,2-halodiazenes
    Takashi Yamamoto
    Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153 8902
    J Org Chem 73:5429-35. 2008
    ..These results clearly indicate the dominance of lone-pair-related hyperconjugations on the basic electronic structure and energetic natures of 1,2-dihalodiazene systems...
  35. ncbi request reprint Isoflavone-free soy protein prepared by column chromatography reduces plasma cholesterol in rats
    Kensuke Fukui
    New Ingredients Research Institute and Soybean Health Foods Laboratory, Fuji Oil Company, Ltd, 1 Sumiyoshi cho, Izumisano, Osaka 598 8540, Japan
    J Agric Food Chem 50:5717-21. 2002
    ..Thus, a significant fraction of the cholesterol-lowering effect of SPI in rats can be attributed to the protein content, but the isoflavones and other minor constituents may also play a role...
  36. ncbi request reprint [Endoscopic diagnosis of Barrett's esophagus]
    Yoshio Hoshihara
    Center for Health Care, Toranomon Hospital
    Nihon Rinsho 63:1394-8. 2005
    ..Thus the definite diagnosis of Barrett's epithelium can be made by endoscopy...
  37. ncbi request reprint Formation and control of toxic polychlorinated compounds during incineration of wastes containing polychlorinated naphthalenes
    Shin ichi Sakai
    Environment Preservation Center, Kyoto University, Yoshidahon machi, Sakyo ku, 606 8501 Kyoto, Japan
    Environ Sci Technol 40:2247-53. 2006
    ..From this pilot-scale study, the incremental impact of incinerating PCN-containing wastes on annual TEQ emissions in Japan is estimated as 0.27 g of total TEQ...
  38. ncbi request reprint [Functional analysis of acid sensing ion channels]
    Shoichi Shimada
    Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho cho, Mizuho ku, Nagoya, 467 8601 Japan
    Nihon Shinkei Seishin Yakurigaku Zasshi 24:243-6. 2004
    ..Our results suggest that ASICs (ASIC1a and ASIC3) are leading acid sensors in human nociceptors and that TRPV1 participates in the nociception mainly under extremely acidic conditions...
  39. ncbi request reprint Involvement of the mesolimbic system in palatability-induced ingestion
    Tsuyoshi Shimura
    Department of Behavioral Physiology, Graduate School of Human Sciences, Osaka University, Suita, Osaka 565 0871, Japan
    Chem Senses 30:i188-9. 2005
  40. ncbi request reprint Molecular simulation of crystallization in n-alkane ultrathin films: effects of film thickness and substrate attraction
    Takashi Yamamoto
    Department of Physics and Informatics, Yamaguchi University, Yamaguchi 753 8512, Japan
    J Chem Phys 127:154704. 2007
    ..It is also shown that the perpendicular crystals, both on the free surface and on the solid substrate, have melting points higher than that of the bulk...
  41. ncbi request reprint The effect of copper speciation on the formation of chlorinated aromatics on real municipal solid waste incinerator fly ash
    Masaki Takaoka
    Department of Urban and Environmental Engineering, Graduate School of Engineering, Kyoto University, Yoshidahon machi, Sakyo ku, Kyoto 606 8501, Japan
    Chemosphere 59:1497-505. 2005
    ....
  42. ncbi request reprint Technique for anisotropic extension of organic crystals: application to temperature dependence of electrical resistance
    Takashi Yamamoto
    RIKEN, 2 1 Hirosawa, Wako, Japan
    Rev Sci Instrum 78:083906. 2007
    ..The experimental results are discussed from the viewpoint of the extension (compression) of the lattice constants along the parallel (perpendicular) direction...
  43. doi request reprint Chemical mechanism of homoisocitrate dehydrogenase from Saccharomyces cerevisiae
    Ying Lin
    Department of Chemistry and Biochemistry, University of Oklahoma, 620 Parrington Oval, Norman, Oklahoma 73019, USA
    Biochemistry 47:4169-80. 2008
    ....