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  • Springer  (98)
  • American Journal of Science
  • 1995-1999  (62)
  • 1990-1994  (27)
  • 1965-1969  (6)
  • 1945-1949  (2)
  • 1905-1909
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  • 1
    Electronic Resource
    Electronic Resource
    Film formation of latex dispersions observed with evanescent dynamic light scattering (1997)
    Springer
    Colloid & polymer science 104 (1997), S. 191-193 
    Details
    ISSN: 1435-1536
    Keywords: Evanescent dynamic light scattering ; colloidal dispersions ; film formation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract We have applied evanescent dynamic light scattering (DLS) to study the film formation of polymer latex dispersions. A dynamical glass transition is observed. When the particles fuse, the scattering rate decreases. After fusion, a new fast process (τ r 1 ms) is observed, which is not present in bulk DLS data. We attribute the process to discontinuous relaxation of surface induced stresses (transient micro-cracks).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01182447
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  • 2
    Electronic Resource
    Electronic Resource
    Kinetic energy spectrum and polarization of neutrons from the reaction 12C(p,n)X at 590 MeV (1998)
    Springer
    The European physical journal 2 (1998), S. 411-415 
    Details
    ISSN: 1434-601X
    Keywords: PACS:29.25.Dz Neutron sources – 25.40.Ve Other reactions above meson production thresholds – 13.75.Cs Nucleon-nucleon interactions (including antinucleons, deuterons etc.)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstact: The kinetic energy spectrum and the polarization of the PSI neutron beam produced in the reaction 12C(p,n)X at 0° with 590 MeV polarized protons were investigated. A strong energy dependence of the neutron beam polarization is observed which was not expected at the time the neutron beam was built.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500050138
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  • 3
    Electronic Resource
    Electronic Resource
    Evidence of a 50-year increase in tropospheric ozone in Upper Bavaria (1994)
    Springer
    Annales geophysicae 12 (1994), S. 1197-1206 
    Details
    ISSN: 0992-7689
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract In a series of ozone-sonde soundings at the Hohenpeißenberg observatory, starting in 1967, the most striking features are increases of \sim2.2% per year in all tropospheric heights up to 8 km during the past 24 years. These facts have recently been published and discussed by several authors. In this paper, we present some evidence for the increase of tropospheric ozone concentrations during the past 50 years 1940–1990 in the territory of the northern edge of the Bavarian Alps, including the Hohenpeißenberg data. In December 1940 and August 1942, probably the first exact wet-chemical vertical soundings of ozone up to 9 km height were made by an aircraft in the region mentioned. These results were published in the earlier literature. We have converted the results of the flights on 4 days in December 1940 and on 6 days in August 1942 to modern units and have compared them with the Hohenpeißenberg ozone-sonde data of the December and August months. We also compared the data at the ground with the August results of Paris-Montsouris 1886-1898. Our results show an increase of ozone concentration at all tropospheric heights in Upper Bavaria during the past 50 years, compared with the Montsouris data in August during the past 105 years. In the recently published papers, the increases since 1967 were approximated linearly.Our results, extended to the past, show non-linear trends, with steeper increases since 1975-1979. Possible reasons for these findings are discussed. Quite recently (in case of the December months since 1986/87, the August months since 1990), the ozone mixing ratios at and above Hohenpeißenberg seem to have decreased.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s00585-994-1197-7
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  • 4
    Electronic Resource
    Electronic Resource
    Automatisches Herstellen von englumigen Glaskapillaren, Glasfäden und Mikropipetten (1966)
    Springer
    Naturwissenschaften 53 (1966), S. 582-582 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00600532
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  • 5
    Electronic Resource
    Electronic Resource
    Processing of antennular input in the brain of the spiny lobster, Panulirus argus (1996)
    Springer
    Journal of comparative physiology 178 (1996), S. 605-628 
    Details
    ISSN: 1432-1351
    Keywords: Crustacean ; Olfaction ; Mechanoreception ; Local interneurons ; Projection neurons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Neurons in the olfactory deutocerebrum of the spiny lobster, Panulirus argus, were recorded intracellularly and filled with biocytin. Recorded neurons arborized in the olfactory lobe (OL), a glomerular neuropil innervated by olfactory and some presumptive mechanosensory antennular afferents. The neurons responded to chemosensory input from the lateral antennular flagellum bearing the olfactory sensilla but not the medial flagellum bearing many non-olfactory chemosensory sensilla. Many neurons received additional mechanosensory input. Thus the OL integrates specifically olfactory with mechanosensory input. OL neurons had multiglomerular arborizations restricted to one or two of the three horizontal layers of the columnar glomeruli. OL local interneurons comprised “core” neurons with tree-like neurites and terminals in the base of the glomeruli and “rim” neurons with neurites surrounding the OL and terminals in the cap/subcap. The somata of OL local interneurons lay in the medial soma cluster (100000 somata). OL projection neurons arborized in the base of the glomeruli and ascended via the olfactory glomerular tract to the lateral protocerebrum. A parallel projection pathway is constituted by projection neurons of the accessory lobe, a glomerular neuropil without afferent innervation but intimate links to the OL. The projection neuron somata constituted the lateral soma cluster (200000 somata).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00227375
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  • 6
    Electronic Resource
    Electronic Resource
    Processing of antennular input in the brain of the spiny lobster, Panulirus argus (1996)
    Springer
    Journal of comparative physiology 178 (1996), S. 579-604 
    Details
    ISSN: 1432-1351
    Keywords: Crustacean ; Chemoreception ; Mechanoreception ; Deutocerebrum ; Motoneurons ; Projection neurons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Neurons in the brain of the spiny lobster that respond to chemical and mechanical stimulation of the antennule (antenna I) were recorded and stained intracellularly. Described here are neurons that do not arborize in the olfactory and accessory lobes of the deutocerebrum, but rather primarily target the lateral and/or the median antennular neuropils of the deutocerebrum. Some of the neurons also extend into the antennal and tegumentary neuropils of the tritocerebrum and the neuropils of the median protocerebrum. Included are antennular sensory afferents, antennular motoneurons, projection neurons descending from the central brain, projection neurons ascending from the central brain and projection neurons descending from the eyestalk ganglia. Collectively, these neurons consitutute a novel antennular sensory pathway that is parallel to and independent of the antennular olfactory pathway. The novel pathway integrates mechanosensory and non-olfactory chemosensory information in the lateral and/or the median antennular neuropils, which also serve as lower motor centers of the antennule. Division of the arthropod deutocerebrum into two, functionally distinct chemosensory pathways may reflect differences in how chemosensory information is processed that is fundamental to understanding the origin of the sense of smell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00227374
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  • 7
    Electronic Resource
    Electronic Resource
    Wave-particle dualism and the interpretation of quantum mechanics (1992)
    Springer
    Foundations of physics 22 (1992), S. 1217-1265 
    Details
    ISSN: 1572-9516
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The realist interpretations of quantum theory, proposed by de Broglie and by Bohm, are re-examined and their differences, especially concerning many-particle systems and the relativistic regime, are explored. The impact of the recently proposed experiments of Vigier et al. and of Ghose et al. on the debate about the interpretation of quantum mechanics is discussed. An indication of how de Broglie and Bohm would account for these experimental results is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01889712
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  • 8
    Electronic Resource
    Electronic Resource
    Characteristic features of the x-ray spectra of a plasma produced by heating CO2 clusters by intense femtosecond laser pulses with λ=0.8 and 0.4 μm (1998)
    Springer
    JETP letters 68 (1998), S. 485-491 
    Details
    ISSN: 1090-6487
    Keywords: 52.50.Jm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The x-ray spectra of a plasma produced by heating CO2 clusters with intense femtosecond laser pulses with λ=0.8 μm and λ=0.4 μm are investigated. Spatially resolved x-ray spectra of the cluster plasma are obtained. The observed characteristic features of the x-ray emission spectra show unequivocally that such a plasma contains quite a large relative number of ions (≃10−2–10−3) with energies of 0.1–1 MeV. The contour of the OVIII Lyα line is found to have characteristic features that are especially conspicuous when the clusters are heated with second-harmonic pulses. These features cannot be explained by any mechanisms known to the authors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.567894
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  • 9
    Electronic Resource
    Electronic Resource
    Observation of ions with energies above 100 keV produced by the interaction of a 60-fs laser pulse with clusters (1999)
    Springer
    Journal of experimental and theoretical physics 88 (1999), S. 1122-1129 
    Details
    ISSN: 1090-6509
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The x-ray spectra of a plasma generated by heating CO2 and Ar clusters with high-intensity femtosecond laser pulses with q las≃1018 W/cm2 are investigated. Spatially resolved x-ray spectra of a cluster plasma are obtained for the first time. Photoionization absorption is observed to influence the spectral line profiles. The recorded features of the x-ray emission spectra definitely indicate the existence of a large relative number of excited ions (≃10−2–10−3) with energies of 0.1–1 MeV in such a plasma. Possible mechanisms underlying the acceleration of ions to high energies are discussed. It is shown that the experimental results can be attributed to the influence of ponderomotive forces in standing waves generated by the reflection of laser radiation from the clusters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.558900
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  • 10
    Electronic Resource
    Electronic Resource
    Sub-nanomol per second flow measurement near atmospheric pressure (1998)
    Springer
    Experiments in fluids 25 (1998), S. 37-41 
    Details
    ISSN: 1432-1114
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract  We present a measurement technique designed to accurately measure small flow rates near atmospheric pressure, and demonstrate the ability to measure flows on the order of 10-10 mol/sec. The technique is based upon a modification of a constant-volume mass accumulation scheme where the flow rate is measured by monitoring the change in pressure of a known volume of gas. We identify two phenomena, thermally-induced fluctuations and thermodynamically-induced fluctuations, which will affect the resolution and dynamic range of the instrumentation and discuss how the problems associated with them can be mitigated. We estimate the resolution to be approximately 2.0×10-13 mol/s, and the maximum measurable flow rate to be to the order 2×10-9 mol/s.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003480050205
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