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  • 1995-1999  (138)
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  • 1
    Unknown
    Nonlinear waves and chaos in space plasmas (1997)
    Tokyo : TERRAPUB
    Details
    Keywords: nonlinear waves ; chaos ; space plasma
    Description / Table of Contents: A REVIEW OF NONLINEAR LOW FREQUENCY (LF) WAVE OBSERVATIONS IN SPACE PLASMAS: ON THE DEVELOPMENT OF PLASMA TURBULENCE / pp. 1-44 --- GENERATION AND NONLINEAR EVOLUTION OF COMETARY WAVES / pp. 45-76 --- ADVENTURES IN PARAMETER SPACE: A COMPARISON OF LOW-FREQUENCY PLASMA WAVES AT COMETS / pp. 77-119 --- SOLITON THEORY OF QUASI-PARALLEL MHD WAVES / pp. 121-169 --- NONLINEAR EVOLUTION OF MHD WAVES AT THE EARTH'S BOW SHOCK: OPINIONS ON THE CONFRONTATION BETWEEN THEORY, SIMULATIONS, AND MEASUREMENTS / pp. 171-224 --- RECENT ADVANCES IN THE THEORY OF NONLINEAR PLASMA MASER / pp. 225-269 --- CHARGING EFFECTS IN PROPAGATION OF WAVES IN DUSTY PLASMAS / pp. 271-291 --- PROPAGATION OF ALFVÉN WAVE PACKET IN AN ANOMALOUS DISPERSION PLASMA / pp. 293-318 --- CHAOTIC ACCELERATION OF ELECTRONS INTERACTING WITH ELECTRON CYCLOTRON WAVE / pp. 319-335 --- NONLINEAR ELF-VLF EFFECTS OBSERVED ON ACTIVNY SATELLITE / pp. 337-358 --- NONLINEAR DYNAMICAL STUDIES OF GLOBAL MAGNETOSPHERIC DYNAMICS / pp. 359-389
    Pages: Online-Ressource (VI, 389 Seiten)
    ISBN: 4887041217
    URL: http://www.terrapub.co.jp/e-library/nl/
    Language: English
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    E-BOOK
  • 2
    Electronic Resource
    Electronic Resource
    Size Dependent Fluorescence Quenching of CdS Nanocrystals Caused by TiO2 Colloids as a Potential-Variable Quencher (1995)
    s.l. : American Chemical Society
    Langmuir 11 (1995), S. 4283-4287 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00011a019
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  • 3
    Electronic Resource
    Electronic Resource
    Debrisoquine hydroxylation in a Polish population (1995)
    Springer
    European journal of clinical pharmacology 47 (1995), S. 503-505 
    Details
    ISSN: 1432-1041
    Keywords: Debrisoquine ; Genetic polymorphism ; CYP2D6 ; drug metabolism ; pharmacogenetics ; Poland
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract The genetic polymorphism of drug oxidation mediated by cytochrome P450IID6 (CYP2D6) was determined in 154 Polish volunteers using debrisoquine as the test substance. The results showed a bimodal distribution of the debrisoquine metabolic ratio (MR). Nine persons (5.8%) with MR〉12.6 were classified as poor metabolisers (gene frequency 0.242), which is in substantial agreement with the data reported for other Caucasian populations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00193702
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  • 4
    Electronic Resource
    Electronic Resource
    Computer simulations for direct conversion of the HF electromagnetic wave into the upper hybrid wave in ionospheric heating experiments (1998)
    Springer
    Annales geophysicae 16 (1998), S. 1251-1258 
    Details
    ISSN: 0992-7689
    Keywords: Ionosphere (ionospheric irregularities; plasma waves and instabilities; wave-particle interactions).
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Excitation of upper hybrid waves associated with the ionospheric heating experiments is assumed to be essential in explaining some of the features of stimulated electromagnetic emissions (SEE). A direct conversion process is proposed as an excitation mechanism of the upper hybrid waves where the energy of an obliquely propagating electromagnetic pump wave is converted into the electrostatic upper hybrid waves due to small-scale density irregularities. We performed electromagnetic particle-in-cell simulations to investigate the energy conversion process in the ionospheric heating experiments. We studied dependence of the amplitude of the excited wave on the propagation angle of the pump wave, scale length of the density irregularity, degree of the irregularity, and thermal velocity of the plasma. The maximum amplitude is found to be 37% of the pump amplitude under an optimum condition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s00585-998-1251-y
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  • 5
    Electronic Resource
    Electronic Resource
    Rapid generation of Langmuir wave packets during electron beam–plasma instabilities (1996)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 3 (1996), S. 2559-2563 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A new mechanism for Langmuir wave localization is investigated. Typical computer simulation of weak electron beam–plasma instabilities proceeds as follows: As Langmuir waves grow out of the noise, they react back on the beam particles by trapping. The subsequent phase shift puts the electrons out of phase with the waves. Then the instability is locally quenched, resulting in strong wave modulation, even before saturation of the instabilities. The typical size of wave packets is given by 2πvp/ω¯t, where vp and ω¯t denote the phase speed of the dominant wave and the average bounce frequency, respectively. The time scale for this process is considerably shorter than that of parametric instabilities. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871963
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  • 6
    Electronic Resource
    Electronic Resource
    Accumulation of aluminium in the cell wall pectin in cultured tobacco (Nicotiana tabacum L.) cells treated with a combination of aluminium and iron (1999)
    Oxford, UK : Blackwell Science Ltd.
    Plant, cell & environment 22 (1999), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: In nutrient medium, aluminium (Al) accumulation in tobacco cells occurs only in the presence of ferrous ion [Fe(II)]. The localization of Al was examined to elucidate a mechanism of Al accumulation. After the digestion of Al-treated cells with cellulase and pectolyase together, the resulting spheroplasts contained as much Al as the intact cells. However, the cell walls isolated from Al-treated cells also contained as much Al as the intact cells. Comparison of sugar and Al contents in polysaccharide components extracted chemically from cell walls isolated from intact cells and spheroplasts revealed that the enzymes digested most of the cellulose and hemicellulose, but only half of the pectin, and that Al mainly existed in the pectin remaining in the spheroplasts. Gel-permeation chromatography of the pectin fraction (NH4-oxalate extract) from the cell walls of the intact cells indicated that Al was associated with small polysaccharides of approximately 3–7 kDa. These results suggest that a minor part of pectin is a major site of Al accumulation. The content of cell wall pectin increased during Al treatment in nutrient medium. Taken together, we hypothesize that Al may bind to the pectin newly produced during Al treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3040.1999.00467.x
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  • 7
    Electronic Resource
    Electronic Resource
    BamHI-SacI RFLP and Gm analysis of the immunoglobulin IGHG genes in the Northern Selkups (west Siberia): new haplotypes with deletion, duplication and triplication (1999)
    Springer
    Human genetics 〈Berlin〉 105 (1999), S. 530-541 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. Gm immunoglobulin allotypes have been studied in 1157 individuals of seven Northern Selkup populations, which account for 80% of the entire population of this west Siberian tribe. This study confirms that the northern Selkup populations are a Caucasoid-Mongoloid hybrid. Restriction fragment length polymorphism (RFLP) analysis of the IGHG genes using double BamHI-SacI digests, performed on 475 DNA samples, allowed us to describe nine new BamHI-SacI haplotypes (BS47 to BS55), eight of them being characterized by IGHG gene deletion or duplication: G1 (BS49) or G4 (BS55) deletion, G4 duplication (BS51), GP-G2-G4 multigene deletion (BS50), duplication (BS48, BS53 and BS54) or triplication (BS52). A new rare Gm haplotype 15,16*;1,17;23 has been found associated with BS52. The BS51 haplotype characterized by a duplicated G4 gene (additional 7.85 kb G4 band identifying a new G4*C5 allele) was always found associated with the Gm 5*;3;23 haplotype. A high RFLP diversity has been observed for the Northern-Mongoloid haplotype Gm 15,16*;1,17;.. which was found (1) with the BS27 haplotype characterized by a 3-exon hinge G3 gene, (2) with two different GP-G2-G4 multigene duplications, BS53 and BS54 haplotypes, which differ by the size of the duplicated G4 genes, and (3) with the BS55 haplotype characterized by a G4 deletion. In the Northern Selkups, haplotypes with duplicated genes were observed at a higher frequency (24%) than haplotypes with deleted genes (6%).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004399900187
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  • 8
    Electronic Resource
    Electronic Resource
    Lepidimoide Promotes Light-Induced Chlorophyll Accumulation in Cotyledons of Sunflower Seedlings (1998)
    Springer
    Journal of plant growth regulation 17 (1998), S. 215-219 
    Details
    ISSN: 1435-8107
    Keywords: Key Words. 5-Aminolevulinic acid accumulation—Chlorophyll accumulation—Cucumis sativus—Cytokinin—Helianthus annuus—Lepidimoic acid—Lepidimoide—Structure-activity relationship
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. The effect of disaccharide lepidimoide on light-induced chlorophyll accumulation was studied in cotyledons of sunflower (Helianthus annuus L.) seedlings and detached cucumber (Cucumis sativus L.) cotyledons. From studies on the structure-activity relationships of lepidimoide, its analogs, and sucrose with respect to light-induced chlorophyll accumulation in the cotyledons of sunflower seedlings, both lepidimoide and the free carboxylic acid of lepidimoide (lepidimoic acid) showed the highest promoting activity, whereas the hydrogenated lepidimoide, which lacks a double bond in the C4, 5 position in uronic acid, showed lower activity than lepidimoide; however, sucrose exhibited very weak activity. These results suggest that lepidimoide acts as a new type of plant growth regulator, not simply as a carbon source providing energy. Lepidimoide promoted not only light-induced chlorophyll accumulation in sunflower cotyledons but also light-induced 5-aminolevulinic acid content, which is considered to be a rate-limiting step in chlorophyll biosynthesis. Lepidimoide with cytokinin stimulated the accumulation of chlorophyll and 5-aminolevulinic acid additively. In detached cucumber cotyledons, lepidimoide also promoted light-induced chlorophyll accumulation. These results indicate that lepidimoide, in cooperation with cytokinin, causes light-induced chlorophyll accumulation in the cotyledons of several dicot plant species by affecting the level of 5-aminolevulinic acid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00007037
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  • 9
    Electronic Resource
    Electronic Resource
    The April 1992 Cape Mendocino Earthquake Sequence: Seismo-Acoustic Analysis Utilizing Fixed Hydrophone Arrays (1997)
    Springer
    Marine geophysical researches 19 (1997), S. 137-162 
    Details
    ISSN: 1573-0581
    Keywords: Cape Mendocino ; earthquake ; hydrophone ; T-waves ; acoustic propagation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The oceanic T-waves of earthquakes associated with the 1992 Cape Mendocino earthquake sequence were recorded and analyzed using fixed hydrophone arrays located throughout the north-east Pacific Ocean. The T-waves of these events were well recorded with high S/N ratios and strong acoustic energy present over a 0–64 Hz bandwidth. The smallest event recorded by the hydrophone arrays from the sequence had a local magnitude of 2.4. The hydrophone records of the three largest shocks in the sequence (ML 6.9, 6.2, 6.5) exhibited both T-waves and lithospheric phases from these events. Low-pass filtering (2 Hz) of the lithospheric phases yielded a clear P-wave arrival for epicentral distances of 〈10°, but no apparent S-wave. A seafloor cable-break was detected immediately after the second M〉6 aftershock, possibly the result of a submarine slide. The direct P-wave hydrophone records from the second large aftershock showed a relatively high-amplitude, high-frequency arrival, consistent with seismic analyses which used this information to infer rupture direction. The rupture direction was toward the location of the cable break, thus rupture directivity possibly played a role in initiating the slide event. Modelling of the T-wave propagation path, using the Parabolic Equation model, produced estimates of the acoustic transmission loss from epicenter to receiver. The transmission loss to the most distant phones is typically 10-20 dB , and can be as large as 50–70 dB for acoustic propagation paths that cross the continental margin. The amount of acoustic energy each earthquake released into the ocean at the seafloor–water interface was estimated applying the transmission loss and instrument response to the recorded T-wave signals. This acoustic source power level was calculated for 41 events with magnitudes over a recorded range of 2.4≤ML≤6.9, with 17 of these events having their seismic moment estimates available through the NEIC. Ground displacement spectra were estimated from the acoustic power spectra and showed no indication of a corner frequency. Thus empirical analyses relating source level to magnitude and seismic moment were necessary to quantitatively derive an earthquake's size from hydrophone records. The results of indicator variable regression analyses suggest that T-wave source level increases linearly with the event's local magnitude and seismic moment. Furthermore, the source power level versus magnitude relationships for oceanic and continental earthquakes are significantly different, probably illustrating differences in the seismic and acoustic propagation paths from hypocenter to the hydrophone receivers. The results indicate that acoustic measurements provide a reasonable estimate of magnitude and seismic moment of an oceanic earthquake that was not detected by land-based seismic networks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004256910362
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  • 10
    Electronic Resource
    Electronic Resource
    Intermediate phase on rapidly quenched Ni49Ti50Al1 (1999)
    Springer
    Journal of materials science 18 (1999), S. 1853-1854 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006611709098
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