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  1. No Access

    Chapter

    Phosphate Recovery Using Amorphous Calcium Silicate Hydrates

    Amorphous calcium silicate hydrates (A-CSHs) can be chemically synthesized using abundantly available, inexpensive materials such as siliceous shale and calcium hydroxide. A-CSHs can serve as a bifunctional ad...

    K. Okano, H. Ohtake, M. Kunisada, H. Takano, M. Toda in Phosphorus Recovery and Recycling (2019)

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    Chapter and Conference Paper

    Development of a New Vascular Endoscopic System for Observing Inner Wall of Aorta Using Intermittent Saline Jet

    A prototype endoscopic system for observing inner wall of aorta was developed and tested in vivo using swine. The purpose of this system is to visualize the inner wall of aorta without stop** aortic flow for th...

    S. Tanaka, K. Tokugi, M. Ogawa, K. Motoi in World Congress on Medical Physics and Biom… (2009)

  3. Article

    Open Access

    Establishment of an immortalised human ovarian surface epithelial cell line without chromosomal instability

    Epithelial ovarian carcinoma is thought to derive from ovarian surface epithelium (OSE). The black box of the early molecular changes in ovarian carcinogenesis is being interpreted by the development of experi...

    T Maeda, H Tashiro, H Katabuchi, M Begum, H Ohtake, T Kiyono in British Journal of Cancer (2005)

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    Article

    Sperm-activating proteins obtained from the herring eggs

    Spermatozoa of the Pacific herring, Clupea pallasii, were immotile in a solution of isotonic to seminal plasma, but swimming was initiated in a hypertonic solution such as 60% water. The motility of herring sperm...

    H. Ohtake in Fish Physiology and Biochemistry (2003)

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    Article

    Electron-beam excitation of a Ce3+:LiCaAlF6 crystal for future high-peak-power UV lasers

    In this experiment, we performed ultrafast spectroscopy on an electron-beam-excited Ce3+:LiCaAlF6 (Ce:LiCAF) crystal. The time-resolved fluorescence spectrum and lifetime with e-beam pum** differ significantly ...

    T. Kozeki, Y. Suzuki, M. Sakai, H. Ohtake, N. Sarukura, K. Shimamura in Applied Physics B (2002)

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    Chapter

    Molecular Genetics of Bacterial Polyphosphate Accumulation to Better Understand the Mechanism Underlying Biological Phosphorus Removal

    Phosphorus (P) is an essential constituent for all types of living organisms. Microorganisms use inorganic phosphate (Pi) as the preferred P source. Pi removal from wastewaters has received considerable attent...

    H. Ohtake, A. Kuroda, M. Chandrasekaran in Environmental Monitoring and Biodiagnostic… (2001)

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    Article

    An immunohistochemical and ultrastructural study of a follicle-stimulating hormone-secreting gonadotroph adenoma occurring in a 10-year-old girl

    Female gonadotroph adenomas with endocrinological symptoms are uncommon. Six cases of such adenomas have been reported in the literature: two were girls who presented with precocious puberty and four were pre...

    H. Tashiro, H. Katabuchi, H. Ohtake, A. Yoshioka in Medical Electron Microscopy (2000)

  8. No Access

    Chapter

    Genetic Improvement of Bacteria for Enhanced Biological Removal of Phosphate from Wastewater

    Phosphorus (P) is an essential constituent in all types of living organisms. It is present in nucleic acids, phospholipids and various cytoplasmic solutes. Microorganisms use inorganic phosphate (Pi) as the prefe...

    H. Ohtake, A. Kuroda, J. Kato, T. Ikeda in Inorganic Polyphosphates (1999)

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    Article

    Regulation of bacterial phosphate taxis and polyphosphate accumulation in response to phosphate starvation stress

    Phosphorus (P) is an essential constituent in all types of living organisms. Bacteria, which use inorganic phosphate (Pi), as the preferred P source, have evolved complex systems to survive during Pi starvation c...

    H Ohtake, J Kato, A Kuroda, H Wu, T Ikeda in Journal of Biosciences (1998)

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    Chapter and Conference Paper

    Spectrum control of intense THz-radiation from InAs under magnetic field irradiated with stretched femtosecond laser pulses

    We report significant enhancement of THz-radiation from InAs under magnetic field irradiated with femtosecond pulses. Furthermore, the radiation spectrum is found to be controlled by the excitation pulsewidth,...

    H. Ohtake, Z. Liu, S. Izumida, S. Ono, N. Sarukura in Ultrafast Phenomena XI (1998)

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    Article

    Localization of prolactin and its receptor messenger RNA in the human decidua

    Prolactin (PRL) is known as an anterior pituitary hormone. On the other hand, PRL is also produced in the human decidualized endometrium. The physiological role and site of action of endometrial PRL have not y...

    N. Tadokoro, N. Koibuchi, H. Ohtake, T. Kawatsu, S. Tanaka, H. Ohkawa in Experientia (1995)

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    Article

    A case of intrathoracic meningocele accompanied by Recklinghausen's disease

    T. Abe M.D., K. Kojima, H. Nishimura, M. Uchida, M. Koganemaru, H. Ohtake in Neuroradiology (1990)

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    Article

    Monoxenic and mixed cultures of the small metazoa Philodina erythrophthalma and Aeolosoma hemprichi isolated from a waste-water treatment process

    Philodina erythrophthalma (an euryphagous Rotatoria) and Aeolosoma hemprichi (a stenophagous Oligochaeta), isolated from a waste-water treatment process, were grown in monoxemic and mixed cultures using a variet...

    Y. Inamori, Y. Kuniyasu, N. Hayashi, H. Ohtake in Applied Microbiology and Biotechnology (1990)

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    Article

    A method for removal of toxic chromium using dialysis-sac cultures of a chromate-reducing strain of Enterobacter cloacae

    A method for removal of toxic hexavalent chromium (chlomate: CrO inf4 sup2− ) was developed by use of dialysis-sac cultures of a chromate-reducing strain of Ent...

    K. Komori, A. Rivas, K. Toda, H. Ohtake in Applied Microbiology and Biotechnology (1990)

  15. No Access

    Article

    False positive result of guthrie inhibition assay for histidinaemia in a patient with phenylketonuria

    N. Sakura, N. Kawahara, M. Tanabe, T. Miura in Journal of Inherited Metabolic Disease (1990)

  16. No Access

    Article

    Effects of capsule hardness on germination frequency of encapsulated somatic embryos of carrot

    Somatic embryos of carrot were encapsulated in calcium alginate beads to provide artificial carrot seeds. Alginate capsules with a hardness of 0.2 to 0.5 kg/cm2 were found to be suitable for germination of encaps...

    J. Shigeta, T. Mori, K. Toda, H. Ohtake in Biotechnology Techniques (1990)

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    Article

    Significance of a halocline to nutrient cycles in shallow brackish Lake Nakanoumi, Japan

    The significance of a halocline for nutrient cycles in a shallow coastal lagoon, Lake Nakanoumi, was investigated. The study was made possible when the northern part of the lagoon was enclosed by polder dikes ...

    Tadahiro Mori, H. Ohtake, K. Kondo, Y. Seike, Y. Date in Hydrobiologia (1987)