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  • Springer  (281)
  • American Geophysical Union (AGU)
  • American Physical Society (APS)
  • 1975-1979  (281)
  • 1945-1949
  • 1977  (149)
  • 1976  (132)
  • 11
    Electronic Resource
    Electronic Resource
    Dermatologically active sesquiterpene lactones in trichomes ofParthenium hysterophorus L. (Compositae) (1976)
    Springer
    Cellular and molecular life sciences 32 (1976), S. 236-238 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Scanning electron microscopy of the leaf surface, phyllaries and achene-complex ofParthenium hysterophorus L. showed the presence of 4 types of glandular and non-glandular trichomes. Chemical analysis established the presence of sesquiterpene lactones in the trichomes that cause eczematous dermatitis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01937785
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  • 12
    Electronic Resource
    Electronic Resource
    Effects of weathering and flue-curing on methomyl residues on tobacco (1977)
    Springer
    Archives of environmental contamination and toxicology 5 (1977), S. 199-206 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract A replicated field experiment was conducted at two locations to determine the disappearance of methomyl from flue-cured tobacco. Immediately after application, methomyl residues were 88 and 113 ppm at Clayton and 44 and 105 ppm at Reidsville, respectively, for 0.56 and 1.12 kg/ha application rates. After 5 days these levels dropped to 0.7 and 2.8 ppm at Clayton and 1.4 and 4.1 ppm at Reidsville. At 9 days after application, 99% of the methomyl had disappeared at both locations. Losses of methomyl during flue-curing averaged 96% over locations, rates of application, and times of harvest, compared to an average loss of 98% due to weathering in the field for 5 days. The disappearance of methomyl during the curing process was approximately the same for both locations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02220903
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  • 13
    Electronic Resource
    Electronic Resource
    Effects of weathering and flue-curing on monocrotophos residues on tobacco (1976)
    Springer
    Archives of environmental contamination and toxicology 4 (1976), S. 377-384 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Disappearance of monocrotophos from flue-cured tobacco was studied at three locations (Kinston, Clayton, and Reidsville, North Carolina) in 1973. Average residues on green tobacco leaves collected immediately after application were 41 and 84 ppm, respectively, for applicaton rates of 0.56 and 1.12 kg/ha. Levels declined to about 18 and 40 ppm for the two rates three days after application, to about 9 and 23 ppm at five days, and to about three and eight ppm at nine days. Conventional curing reduced residues on flue-cured tobacco by at least 99%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02221035
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  • 14
    Electronic Resource
    Electronic Resource
    Urban climates and the natural environment (1976)
    Springer
    International journal of biometeorology 20 (1976), S. 128-138 
    Details
    ISSN: 1432-1254
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract The exponential increase in world population accompanied by a growing concentration of these people in towns, create changes in climate not only within but also beyond city margins. Indeed, the modifications may in some cases be world-wide. Cities, because of changes in the heat and water balances and in the chemistry of their air in comparison with rural areas, generate a quite distinctive type of climate, the main features of which are analysed in this paper, more especially in so far as they affect the rural fringes of cities. Air pollution, radiation and sunshine, temperatures, humidities and the patterns of airflow in and around urban areas are considered in turn, particular attention being paid to their effects upon vegetation growth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01553046
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  • 15
    Electronic Resource
    Electronic Resource
    Experience gained with the Blacknest ocean bottom seismograph (1977)
    Springer
    Marine geophysical researches 3 (1977), S. 143-150 
    Details
    ISSN: 1573-0581
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00309798
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  • 16
    Electronic Resource
    Electronic Resource
    The b-boundary of S 1 with a constant connection (1976)
    Springer
    Letters in mathematical physics 1 (1976), S. 301-307 
    Details
    ISSN: 1573-0530
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract On a manifold with connection the frame bundle admits a Riemannian metric which Schmidt introduced to construct the b-boundary of the underlying manifold. Here we study the metrics that arise when the manifold is R or S 1 with a constant connection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00398485
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  • 17
    Electronic Resource
    Electronic Resource
    Four-wave interactions in plasmas (1977)
    Springer
    Letters in mathematical physics 1 (1977), S. 477-484 
    Details
    ISSN: 1573-0530
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract The interaction of four waves in a warm magnetized plasma is studied using a Lagrangian formalism. General expressions for coupling coefficients are presented and the coupled-mode equations describing the interaction are derived.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00399739
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  • 18
    Electronic Resource
    Electronic Resource
    The formation of current sheets during the emergence of new magnetic flux from below the photosphere (1976)
    Springer
    Solar physics 48 (1976), S. 89-100 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Solar flares are frequently observed to occur where new magnetic flux is emerging and pressing up against strong active region magnetic fields. Since the solar plasma is highly conducting, current sheets develop at the boundary between the emergent and ambient flux, provided the two magnetic fields are inclined at a non-zero angle to one another. The present paper gives a simple two-dimensional model for the development of such sheets under the assumptions that no reconnection occurs and that the surrounding field remains a potential one. By using complex variable techniques, the position, orientation and shape of a current sheet may be determined, as well as the excess magnetic energy associated with it. Two examples are considered. The first, in which the ambient field is bipolar, may model new flux emergence near the edge of an active region, while the second example assumes a constant ambient field and may approximate the so-called ‘fibril crossings’ which occur prior to some flares. In each case, the current sheets are curved, and the magnetic energy which is stored in excess of potential is sufficient to supply a solar flare when the sheets are long enough.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00153334
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  • 19
    Electronic Resource
    Electronic Resource
    Elastic properties, chemical composition, and crystal structure of minerals (1977)
    Springer
    Surveys in geophysics 3 (1977), S. 69-100 
    Details
    ISSN: 1573-0956
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The observed systematic relations between velocities, density, and crystal structure in minerals are viewed as part of the general problem of the interactions of ions and electrons in solids. A complete explanation of these systematics would result from an adequate physical model of interactions between atoms in a crystal. For ionic models, understanding such interactions mainly requires knowledge of inter-ionic repulsive forces, which can be calculated from solutions for the electronic energy levels. The main forms of systematics developed in the last few years can be classed either as bulk modulus-molar volume (K-V M ) or, equivalently, velocity-density (v-p) relations. Isostructural and isochemical (having constant mean atomic weight $$\bar m$$ ) trends exist, and for both classes of systematics it is possible to produce semi-empirical universal expressions with the ability to predict elastic properties to a few percent. The best estimates of composition of the Earth's interior come from comparisons of mineral elastic properties with seismic data. On the basis of current velocity profiles of the Earth, the mantle appears to be chemically homogeneous.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01449183
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  • 20
    Electronic Resource
    Electronic Resource
    The optimal recovery of smooth functions (1976)
    Springer
    Numerische Mathematik 26 (1976), S. 191-200 
    Details
    ISSN: 0945-3245
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary It is shown that there is a positive lower bound,c, to the uniform error in any scheme designed to recover all functions of a certain smoothness from their values at a fixed finite set of points. This lower bound is essentially attained by interpolation at the points by splines with canonical knots. Estimates ofc are also given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01395972
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