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  • 1
    Electronic Resource
    Electronic Resource
    Post-release adaptation processes of hatchery-reared honmasu salmon parr (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 56 (2000), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Hatchery-reared honmasu salmon Oncorhynchus rhodurus × masou parr released into the Yanagisawa River, Tochigi Prefecture on 24 June 1996 increased significantly in length and weight by November, while siblings retained in hatchery tanks did not. Plasma growth hormone (GH) levels of the released parr increased from 1 day after the release until 23 August, while the GH levels of the wild parr in the river did not increase. The released parr started to consume various natural prey organisms within a day after release. However, stomach fullness of the released parr was considerably lower than that of the wild parr during the first week following release. Trypsin activity in the released parr increased after 23 August, 2 months post-release. The results demonstrate that the released parr adapt to the natural river environment within weeks. Endocrine control by GH and exocrine pancreas activity appear to play important roles in the post-release adaptation processes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.2000.tb02092.x
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  • 2
    Electronic Resource
    Electronic Resource
    Studies of $$\bar pp \to \bar nn$$ and $$\bar np$$ annihilation at incident momenta of 700 and 760 MeV/c (1985)
    Springer
    The European physical journal 28 (1985), S. 163-170 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Results are presented on the charge exchange reaction $$\bar pp \to \bar nn$$ and $$\bar np$$ annihilations from bubble chamber exposures to antiproton beam of momenta 700 and 760 MeV/c. The differential cross section of $$\bar pp \to \bar nn$$ shows a forward spike followed by a clear dip bump structure. Total annihilation cross section of $$\bar np$$ for average $$\bar n$$ momentum of 700 MeV/c has been evaluated to be 55.4±2.2 mb. The multiplicity, Feynmanx andp T 2 distributions for inclusive charged pions in $$\bar pp$$ and $$\bar np$$ annihilations are found to be similar. The emission of charged pions from $$\bar np$$ annihilations are found to be consistent with thermodynamic models with temperature ∼110 MeV.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01575719
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  • 3
    Electronic Resource
    Electronic Resource
    A study of $$\bar np$$ annihilations between 0.5 and 0.8 GeV/c (1986)
    Springer
    The European physical journal 32 (1986), S. 163-170 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A study of $$\bar np$$ annihilations with $$\bar n$$ momentum between 0.5 and 0.8 GeV/c is presented. The search fors-channel resonances in $$\bar np$$ annihilations reveal possibly two narrow structures in the odd pions final state. Inclusiveρ 0 andf 0 cross sections in $$\bar np$$ annihilations have been estimated to be 9.0±0.6 mb and 3.4±0.6 mb respectively. Longitudinal and transverse momentum distributions for inclusiveρ 0 production have been presented. A study of resonance production in exclusive final state revealsρ 0 production to be dominant in the odd pion final states andρ +,ω 0 productions are most important for the even pion final states. Theπ + π − effective mass spectra in the backward and the forward directions in the $$\bar np$$ c.m. system have been examined for a possible ϱ-ω interference effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01552492
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  • 4
    Electronic Resource
    Electronic Resource
    Rapidity dependence of multiplicity distributions in proton-nucleus collisions at 360 GeV/c (1988)
    Springer
    The European physical journal 40 (1988), S. 215-221 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Multiplicity distributions in various rapidity intervals for charged particles produced in collisions of 360 GeV/c protons with aluminium (Al) and gold (Au) targets are presented. The data were analysed separately for the forward and backward hemispheres. Each distribution is well described by a negative binomial distribution. The experimental distributions are compared with the predictions of the multichain model calculated by the Monte Carlo program MCMHA in which the intranuclear cascade process is included, and also with the Lund Monte Carlo FRITIOF. The results of MCMHA reproduce quite well the multiplicity distributions for various rapidity intervals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01555884
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  • 5
    Electronic Resource
    Electronic Resource
    Electrical and optical properties of CuIn5S8 single crystals (1983)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 2 (1983), S. 1875-1879 
    Details
    ISSN: 0392-6737
    Keywords: Conductivity phenomena in semiconductors and insulators
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Molte proprietà ottiche e di trasporto sono state studiate sui cristalli singoli di tipon di CuIn5S8. Si è determinato che il gap di energia a 0 K dalle misurazioni elettriche è 1.4 eV. Si è trovata un'anisotropia dell'effetto di magnetoresistenza e si è suggerito che i minimi della banda di conduzione siano situati in punti lungo le direzioni [100] nello spaziok. Si è trovata una banda di assorbimento ottico in una regione dell'infrarosso di (1÷1.6) μm, che è state attribuita alle transizioni delle piú basse bande di conduzione situate lungo le direzioni [100] a una piú alta banda di conduzione.
    Abstract: Резюме Исследуются некоторые транспортные и оптические свойства монокристаллов CuIn5S8 n-типа. Из электрических измерений определяется энергетическая щель при 0 К, которая составляет 1.4 эВ. Обнаружена анизотропия магниторезистивного эффекта. Предполагается, что минимумы зоны проводимости расположены в точках вдоль направления [100] вk-пространстве. Обнаружена оптическая зона поглощения в инфракрасной области (1÷1.6) мкм, которая связана с переходами из нижней зоны проводимости, расположенной вдоль направлений [100], В верхнюю зону проводимости.
    Notes: Summary Several transport and optical properties have been studied onn-type CuIn5S8 single crystals. The energy gap at 0 K was determined from the electrical measurements to be 1.4 eV. An anisotropy of the magnetoresistance effect was found and it was suggested that the minima of the conduction band were located at points along the [100] directions ink-space. An optical-absorption band was found in an infrared region of (1÷1.6) μm and was attributed to the transitions from the lowest conduction band situated along the [100] directions to an upper conduction band.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02457879
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  • 6
    Electronic Resource
    Electronic Resource
    1-Nitropyrene-Metabolizing Activities of Fish Liver Preparations (1997)
    Springer
    Bulletin of environmental contamination and toxicology 58 (1997), S. 448 -455 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001289900355
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  • 7
    Electronic Resource
    Electronic Resource
    Behavioral and electrophysiological evidences that the lateral line is involved in the inter-sexual vibrational communication of the himé salmon (landlocked red salmon, Oncorhynchus nerka) (1994)
    Springer
    Journal of comparative physiology 174 (1994), S. 539-549 
    Details
    ISSN: 1432-1351
    Keywords: Salmon ; Sexual behavior ; Spawning ; Vibrational communication ; Co2+ ; Lateral line
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Characteristic vibrational signals are suggested to be exchanged between the sexes during the spawning behavior in the himé salmon (landlocked red salmon, Oncorhynchus nerka). To check whether the lateral line is used to detect and process these vibrational signals, we examined how Co2+, which is known to block the mechano-electrical transduction in the lateral line detector, affects both the spawning behavior and lateral line response of the male himé salmon. The results showed that Co2+ blocked both the spawning behavior towards the vibrating model (Fig. 2) and the lateral line response to the vibrational stimuli (Figs. 5, 6), if the fish were forced to swim in the water containing 1.0 mM Co2+ for 1 to 1.5 h or longer in the presence of 0.25 mM Ca2+. 0.1 mM Co2+ had similar but weaker effects. These results indicate that the vibrational signals from the vibrating model are detected and processed by the lateral line system to elicit the spawning behavior. These are the first experimental evidences that the lateral line sense is involved in the communicational behavior of the fish.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00217373
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  • 8
    Electronic Resource
    Electronic Resource
    Quantitative chromosome maps and rDNA localization in the T subgenome of Nicotiana tabacum L. and its putative progenitors (2000)
    Springer
    Theoretical and applied genetics 101 (2000), S. 1180-1188 
    Details
    ISSN: 1432-2242
    Keywords: Key words Quantitative idiogram ; Prometaphase chromosome ; Image analysis ; Fluorescence in situ hybridization ; T subgenome progenitor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Using DAPI-stained prometaphase chromosomes, quantitative idiograms were constructed for the T subgenome of Nicotiana tabacum (2n = 4x = 48, SSTT) and two putative candidates for its T subgenome progenitor, Nicotiana otophora and Nicotiana tomentosiformis (both have 2n = 24, TT). The large chromosomes of the three karyotypes could be identified from the distributional pattern of the DAPI signal. Fluorescence in situ hybridization (FISH) with 5S rDNA gave not only good cytogenetical landmarks for identification of small chromosomes of the karyotypes but also phylogenetical information. In all three idiograms, 5S rDNA was localized in the proximal region of the long arm of a small submetacentric pair, but an additional 5S rDNA locus was detected terminally on the short arm of a small metacentric pair in N. otophora. The 18S rDNA locus detected here corresponded to satellite regions in all three karyotypes. Two satellited pairs in N. otophora and one satellited pair in N. tomentosiformis had single large subterminal DAPI blocks and two interstitial DAPI bands on their long arms, respectively. For the T subgenome component of N. tabacum, the single intense DAPI band was depicted on the center of the long arm of a satellited pair in the idiogram, although two interstitial bands were often detected on the long arm of the satellited pair in some spreads. Therefore, it was suggested that the T component of N. tabacum was more similar to that of N. tomentosiformis than N. otophora, especially in respect of the number and location of rDNA and the distributional patterns of DAPI signals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051595
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  • 9
    Electronic Resource
    Electronic Resource
    The biased intracellular accumulation of the β-subunit of salmon gonadotropin (GTH II) in the pituitary of rainbow trout Oncorhynchus mykiss, during gametogenesis (1995)
    Springer
    Cell & tissue research 279 (1995), S. 93-99 
    Details
    ISSN: 1432-0878
    Keywords: Pituitary gland ; Gonadotropin ; Subunits ; Gonadotropes ; Immunocytochemistry ; Immunoblotting ; Oncorhynchus mykiss (Teleostei)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Salmon gonadotropin (GTH II) is a heterodimeric glycoprotein hormone (α and IIβ subunits), serving as a maturational GTH, and is produced in a specific gonadotropic cell-type (GTH II-cells) containing small granules and large globules. In trout GTH II-cells, double immunolabeling for the α- and IIβ-subunits shows that colocalization of the α- and IIβ-immunolabeling is confined to the small granules, indicating storage of functional GTH II. On the other hand, α-immunolabeling is absent in the large globules, even though IIβ labeling is abundant throughout the period of seasonal gametogenesis. The α-specific antiserum recognizes the intact α-subunit as well as the reduced and deglycosylated α-subunits by immunoblotting. These results indicate that an accumulation of the IIβ-subunit is specifically generated in the large globules of these cells. In fact, with sexual maturity, the quantity of IIβ-subunits becomes elevated in the trout pituitary due to a marked increase in GTH II-cells containing many large globules. However, the derivation and function of the large globules and the fate of their contained IIβ-subunits remains unknown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00300695
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  • 10
    Electronic Resource
    Electronic Resource
    The biased intracellular accumulation of the β-subunit of salmon gonadotropin (GTH II) in the pituitary of rainbow trout Oncorhynchus mykiss, during gametogenesis (1994)
    Springer
    Cell & tissue research 279 (1994), S. 93-99 
    Details
    ISSN: 1432-0878
    Keywords: Key words: Pituitary gland ; Gonadotropin ; Subunits ; Gonadotropes ; Immunocytochemistry ; Immunoblotting ; Oncorhynchus mykiss (Teleostei)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. Salmon gonadotropin (GTH II) is a heterodimeric glycoprotein hormone (α and IIβ subunits), serving as a maturational GTH, and is produced in a specific gonadotropic cell-type (GTH II-cells) containing small granules and large globules. In trout GTH II-cells, double immunolabeling for the α- and IIβ-subunits shows that colocalization of the α- and IIβ-immunolabeling is confined to the small granules, indicating storage of functional GTH II. On the other hand, α-immunolabeling is absent in the large globules, even though IIβ-labeling is abundant throughout the period of seasonal gametogenesis. The α-specific antiserum recognizes the intact α-subunit as well as the reduced and deglycosylated α-subunits by immunoblotting. These results indicate that an accumulation of the IIβ-subunit is specifically generated in the large globules of these cells. In fact, with sexual maturity, the quantity of IIβ-subunits becomes elevated in the trout pituitary due to a marked increase in GTH II-cells containing many large globules. However, the derivation and function of the large globules and the fate of their contained IIβ-subunits remains unknown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004410050265
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