Search Results - (Author, Cooperation:Y. Hirakawa)
-
1Latest Papers from Table of Contents or Articles in PressB. A. Curtis ; G. Tanifuji ; F. Burki ; A. Gruber ; M. Irimia ; S. Maruyama ; M. C. Arias ; S. G. Ball ; G. H. Gile ; Y. Hirakawa ; J. F. Hopkins ; A. Kuo ; S. A. Rensing ; J. Schmutz ; A. Symeonidi ; M. Elias ; R. J. Eveleigh ; E. K. Herman ; M. J. Klute ; T. Nakayama ; M. Obornik ; A. Reyes-Prieto ; E. V. Armbrust ; S. J. Aves ; R. G. Beiko ; P. Coutinho ; J. B. Dacks ; D. G. Durnford ; N. M. Fast ; B. R. Green ; C. J. Grisdale ; F. Hempel ; B. Henrissat ; M. P. Hoppner ; K. Ishida ; E. Kim ; L. Koreny ; P. G. Kroth ; Y. Liu ; S. B. Malik ; U. G. Maier ; D. McRose ; T. Mock ; J. A. Neilson ; N. T. Onodera ; A. M. Poole ; E. J. Pritham ; T. A. Richards ; G. Rocap ; S. W. Roy ; C. Sarai ; S. Schaack ; S. Shirato ; C. H. Slamovits ; D. F. Spencer ; S. Suzuki ; A. Z. Worden ; S. Zauner ; K. Barry ; C. Bell ; A. K. Bharti ; J. A. Crow ; J. Grimwood ; R. Kramer ; E. Lindquist ; S. Lucas ; A. Salamov ; G. I. McFadden ; C. E. Lane ; P. J. Keeling ; M. W. Gray ; I. V. Grigoriev ; J. M. Archibald
Nature Publishing Group (NPG)
Published 2012Staff ViewPublication Date: 2012-12-04Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Algal Proteins/genetics/metabolism ; Alternative Splicing/genetics ; Cell Nucleus/*genetics ; Cercozoa/cytology/*genetics/metabolism ; Cryptophyta/cytology/*genetics/metabolism ; Cytosol/metabolism ; *Evolution, Molecular ; Gene Duplication/genetics ; Gene Transfer, Horizontal/genetics ; Genes, Essential/genetics ; Genome/*genetics ; Genome, Mitochondrial/genetics ; Genome, Plant/genetics ; Genome, Plastid/genetics ; Molecular Sequence Data ; *Mosaicism ; Phylogeny ; Protein Transport ; Proteome/genetics/metabolism ; Symbiosis/*genetics ; Transcriptome/geneticsPublished by: -
2Articles: DFG German National LicensesStaff View
ISSN: 0301-0104Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
3Articles: DFG German National LicensesTakeyasu, N. ; Hirakawa, Y. ; Imasaka, T.
Woodbury, NY : American Institute of Physics (AIP)
Published 2001Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: K-shell emission spectra of iron, copper, and molybdenum in the range of 1.5–20 keV using a 500 fs KrF excimer laser have been observed and are reported herein. © 2001 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesLosev, L. L. ; Yoshimura, Y. ; Otsuka, H. ; Hirakawa, Y. ; Imasaka, T.
[S.l.] : American Institute of Physics (AIP)
Published 2002Staff ViewISSN: 1089-7623Source: AIP Digital ArchiveTopics: PhysicsElectrical Engineering, Measurement and Control TechnologyNotes: A four-pass cell was employed for the multifrequency parametric Raman generation in gaseous hydrogen. More than 18 rotational-vibrational Raman lines from 450 to 830 nm were generated using an 80-mJ, 3-ns pump pulse at a wavelength of 532 nm. The output spectrum broadening was observed by increasing the number of passes of the pump pulse through the Raman cell. © 2002 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesTakeyasu, N. ; Hirakawa, Y. ; Imasaka, T.
[S.l.] : American Institute of Physics (AIP)
Published 2001Staff ViewISSN: 1089-7623Source: AIP Digital ArchiveTopics: PhysicsElectrical Engineering, Measurement and Control TechnologyNotes: A new approach for elemental analysis, which is based on the measurement of the hard x ray emitted from a laser-produced plasma is reported here. Since the K-shell emission is characteristic of the element in a sample, Cu, Zn, Fe, Co, and Ni were readily confirmed to be present in brass and kovar alloys by measuring the x-ray emission spectrum over an energy range from 2 to 30 keV. © 2001 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesStaff View
ISSN: 0925-4005Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyElectrical Engineering, Measurement and Control TechnologyType of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesStaff View
ISSN: 0030-4018Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 1432-0649Keywords: PACS: 42.65; 51.70Source: Springer Online Journal Archives 1860-2000Topics: PhysicsNotes: Abstract. The heat produced in conjunction with the processes of stimulated Raman scattering and four-wave Raman mixing in hydrogen was measured by photothermal refraction spectroscopy. Many vibrational, rotational, and vibrationally shifted rotational Raman lines are exclusively/simultaneously generated by changing the polarization of the laser beam and the hydrogen pressure. Thermal loss occurs predominantly from vibrational Raman scattering, which can be ascribed to a large Raman shift frequency of 4155 cm-1 for the vibrational transition. In contrast to stimulated Raman scattering, little or no thermal loss is observable during the process of four-wave Raman mixing.Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesStaff View
ISSN: 1432-0649Keywords: PACS: 42.65; 51.70Source: Springer Online Journal Archives 1860-2000Topics: PhysicsType of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 0030-4018Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 1432-119XSource: Springer Online Journal Archives 1860-2000Topics: BiologyMedicineNotes: Abstract Alveolar type 2 cells are known to take up surfactant phospholipids and proteins from the alveolar space and recycle them into secretory organelles via a receptor-mediated endocytic pathway. To clarify the intracellular route(s) through which materials ingested by the cells are processed, we examined the immunocytochemical localization of late endosomal and lysosomal membrane markers, rab 7 and lamp 1 proteins, within rat alveolar type 2 cells. The limiting membranes of lamellar bodies (LBs) showed positive immunoreactivity for both proteins, whereas multivesicular bodies (MVBs) exhibited positive immunoreactivity only for lamp 1 protein on free vesicles in the MVB lumen. From these findings, it is suggested that LBs are not only secretory granules, but also constitute one of the late endosomal compartments of the cells and that MVBs of this cell type may be targeted to cell organelle(s) other than lysosomes.Type of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesStaff View
ISSN: 1432-119XSource: Springer Online Journal Archives 1860-2000Topics: BiologyMedicineNotes: Summary The secretory granules of rat bronchiolar Clara cells were classified into different types by their ultrastructural appearances followed by immunocytochemistry using anti-rat 10 kDa Clara cell-specific protein (10 kDa CCSP) antibody. One predominant type was the oval to round granule (type A granule), of which the matrix was composed of a map-like mixture of electron-dense and less electron-dense material. Another predominant type was the rod-shaped granule (type B granule). The content of type B granules varied from a finely fibrillar (type B1 granule) to an electron-dense, rod-like (type B3 granule) structure. Various intermediate types (type B2 granule) between type B1 and B3 granules were also found. Small cytoplasmic vesicles were found occasionally in close proximity to type B2 or B3 granule. Another type of granule (type C granule) was large, up to 8 μm in diameter, and contained a moderately electron-dense amorphous matrix. Both type A and C granules stained at a similar density with the antibody. The nascent form of type A granules, which was found in the vicinity to the trans face of the Golgi apparatus, was also labeled. On the other hand, the labeling density of type B granules varied: type B1 granules were almost devoid of immunolabeling, whereas type B3 granules were intensely labeled. Type B2 granules stained with the antibody; however, the labeling density was less than that of type B3 granules. The small cytoplasmic vesicles of type B2 granules were labeled. From these findings, it is suggested that the granules of rat Clara cells consist of two types of granules of distinct origin; one appears to derive from condensing vacuoles of Golgi origin, whereas the other may be formed by membranefusions with small cytoplasmic vesicles of unknown source.Type of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesStaff View
ISSN: 1432-1351Source: Springer Online Journal Archives 1860-2000Topics: BiologyMedicineNotes: Summary The feeding reflex ofHydra japonica evoked by the reduced glutathione (GSH) and S-methyl glutathione (GSM) was analysed quantitatively and the properties of the glutathione receptor was investigated as follows. 1. The mouth-opening proportion of hydras was adopted as the response of the glutathione receptors located on the population of hydra and the dose-response curve of the receptor was analysed by the probit analysis of Bliss (1935). 2. The median mouth-opening thresholds were determined by the above analysis: they were 0.63 μM for GSH and 1.2 μM for GSM at 20 °C. 3. The inhibition constant of a competitive inhibitor of the GSH receptor, L-glutamic acid (L-Glu), was determined by the application of the null-method of pharmacology on the shift of the median mouth-opening threshold in the presence of L-Glu. It was about 7 μM at 20°C. 4. The inhibition constant of L-Glu was almost independent of temperature from 15 to 30°C indicating that the standard enthalpy change of the inhibitor-receptor complex formation was nearly zero. On the contrary, the median mouth-opening threshold of GSM was dependent on the temperature and had a minimum (0.8 μM) at 25 °C.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesStaff View
ISSN: 1573-868XSource: Springer Online Journal Archives 1860-2000Topics: GeosciencesNotes: Abstract Organic geochemical study of bulk organic matter (OM), hopanoid hydrocarbon and normal hydrocarbon (C23∼C35) was conducted for a 936-cm-long sediment core sample from the Oki Ridge of the Japan Sea (Core KH-79-3, C-3; 37°03.5′ N, 134°42.6′E, water depth 935 m). Stable carbon isotopic ratios were also measured for both bulk OM and individual hydrocarbons. The following results were obtained: (1) The weight ratios of total organic carbon to total nitrogen range from 6.2 to 9.4 in the core. The δ13C values of bulk OM range from −25.1∼−20.7%.. The δ13C values of OM in the sections of 140∼190 cm are lower (−25∼−24‰) than those in the other sections (−23∼−21‰). This result indicates that OM in the core except for the 140∼190 cm sections is essentially of marine origin. (2) The δ13C value of diploptene (a hopanoid hydrocarbon) in the last glacial maximum (LGM), is −66.3‰ (vs. PDB), which indicates it originating in methanotrophic bacteria. This result provides evidence to support for the previous ideas (Oba et al., 1980, 1984; Masuzawa and Kitano, 1984) that the bottom waters in the Japan Sea were anoxic in LGM. (3) Long chain (C23∼C35) n-alkanes of higher-plant wax origin were found throughout the core. Their concentration is high in 140∼190 cm in depth, suggesting that eolian dust load was high in LGM. (4) The n-alkane/TOC ratio increases with decreasing δ13C values of bulk OM. This result indicates that the load of terrestrial (probably eolian dust-derived) OM to the Japan Sea became higher in colder climates. (5) The CPI values of long-chain n-alkanes are different in different δ13O stages of paleoclimate, probably reflecting variations in species of terrestrial higher plants as a result of climatological adaptations.Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesKondo, H. ; Sakata, H. ; Hirakawa, Y. ; Hiyama, N. ; Takaishi, M. ; Yamakido, M.
Springer
Published 1984Staff ViewISSN: 1435-702XSource: Springer Online Journal Archives 1860-2000Topics: MedicineNotes: Abstract The responses of in vitro spleen cells to phytohemagglutinin (PHA), concanavalin A (Con A), pokeweed mitogen (PWM) and lipopolysaccharide (LPS) were studied in mice with herpes simplex virus (HSV) infection of the cornea. For 1 week after corneal inoculation of HSV, the responses of spleen cells from mice infected with HSV to PWM and LPS were comparable to those from normal mice, but the responses to Con A and PHA were lower. These results suggest that in acute herpetic keratitis in mice, the responses of T 6cells are more markedly suppressed than those of B cells.Type of Medium: Electronic ResourceURL: