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  • 1
    Electronic Resource
    Electronic Resource
    Effects of particulate peat on the behavior and physiology of the Jamaican reef-building coral Montastrea annularis (1982)
    Springer
    Marine biology 68 (1982), S. 229-233 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Corals in an in situ respirometer exposed to suspended peat during the day greatly decreased net oxygen production, probably due to a reduction of intensity and spectral quality of light reaching the symbiotic zooxanthellae. Net production returned to pre-exposure levels after the chambers were cleared; the corals showed no behavioral effects. In contrast, after exposure during the night, corals displayed clearing behavior (such as extreme distension of the coenosarc and trapping of peat particles in thick clumps of mucus) and an increase in respiration rate comparable to the decrease in net production observed during the daytime exposure. The following morning, net production values were significantly lower than pre-exposure production values although ambient light intensity was slightly higher. This decrease in production as well as a 22% reduction of chlorophyll content in the coral tissue indicated loss of zooxanthellae from the stressed corals. Long-term exposure to such a stress could reduce coral growth rates and substantially alter coral reef communities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00409589
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  • 2
    Electronic Resource
    Electronic Resource
    A survey of azinphos methyl and azinphos methyl oxon in water and blueberry samples from Hancock and Washington counties of Maine (1982)
    Springer
    Bulletin of environmental contamination and toxicology 28 (1982), S. 341-347 
    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/BF01608518
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  • 3
    Electronic Resource
    Electronic Resource
    Uniqueness of representation spaces (1982)
    Springer
    Mathematische Zeitschrift 179 (1982), S. 213-217 
    Details
    ISSN: 1432-1823
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01214313
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  • 4
    Electronic Resource
    Electronic Resource
    Angular distributions of 3-jets ine + e − annihilation and the spin of the gluon (1982)
    Springer
    The European physical journal 13 (1982), S. 87-93 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Angular distributions of jet axes with respect to the beam axis for 3-jet events ine + e − annihilation provide a more sensitive indication of the spins of the underlying particles than the commonly used energy flow variables. Closed expressions for the angular distributions of quark and gluon jet axes are given in both single and double differential form. The angular distributions for undistinguished jets, e.g. the least energetic jet, are calculated. Vector gluons (QCD) and scalar gluons are contrasted to illustrate sensitivity to the gluon spin in each case.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01553638
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  • 5
    Electronic Resource
    Electronic Resource
    Left-flat plane waves asH spaces (1982)
    Springer
    General relativity and gravitation 14 (1982), S. 53-59 
    Details
    ISSN: 1572-9532
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The left-flat plane wave solutions are examined structurally and the family of totally null two-surfaces which are the points of the corresponding deformed twistor space are exhibited explicitly. This family is then used to generate a good-cut function which exhibits these plane waves asH spaces in a generalized setting which is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00756197
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  • 6
    Electronic Resource
    Electronic Resource
    The nonlinear graviton: Superposition of plane waves (1982)
    Springer
    General relativity and gravitation 14 (1982), S. 1023-1033 
    Details
    ISSN: 1572-9532
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The nonlinear graviton construction of Penrose is given explicitly for the nonlinear superposition of a finite number of plane waves with arbitrary propagation directions, phase, and amplitude profiles. These are realized as generalizedH-spaces for which the asymptotic data are distributional and have singular support on a finite number of null generators ofI +.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00756284
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  • 7
    Electronic Resource
    Electronic Resource
    Platte Valley Yellows, a chlorotic condition of soybeans: Symptoms and preliminary chemical analyses (1982)
    Springer
    Plant and soil 68 (1982), S. 283-287 
    Details
    ISSN: 1573-5036
    Keywords: Glycine max ; Iron deficiency ; Mycorrhizae ; Nodulation ; Platte ; Valley ; Yellows ; Rhizobium ; Soybeans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A chlorotic condition of soybeans in the river valleys of eastern Nebraska was studied. The pattern of chlorosis, presence of petiolar necrosis, reductions in rhizobial and mycorrhizal infection, and plant and soil chemical analyses suggest that the condition is more complex than normal iron deficiency chlorosis or other mineral deficiencies or toxicities. Nodulation is almost totally inhibited in affected plants. Mycorrhizal fungi, while able to infect early in the season, do not persist on affected plants. Breakdown of endodermis was observed in the roots of affected plants. The factors contributing to this condition have not yet been determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02373715
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  • 8
    Electronic Resource
    Electronic Resource
    Comparative performance of polynomial signal extraction (1982)
    Springer
    Circuits, systems and signal processing 1 (1982), S. 93-104 
    Details
    ISSN: 1531-5878
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract A stochastic approximation problem for polynomic operators is formulated. The performance of polynomic operators of various degrees is compared. The effect of causality constraints is also examined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01600036
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  • 9
    Electronic Resource
    Electronic Resource
    Crystalline state extrusion of high -density polyethylene as a function of die entrance angle (1982)
    Springer
    Journal of materials science 17 (1982), S. 1700-1712 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract High-density polyethylene (HDPE) of two different average molecular weights, ¯M w, has been solid-state extruded in an Instron capillary rheometer through brass capillary dies of several entrance angles from 10 to 180°. Extrusion rates increase substantially at smaller angles whereas the maximum achievable extrusion draw ratio, (R E), is realized at larger angles. At a constant R E, maxima are observed in plots of linear expansion coefficient, Young's modulus, tensile strength and elongation at break against die entrance angle. These maxima occur at angles of 20 to 30° for the lower molecular weight HDPE (¯M w = 59 000). For the higher molecular weight HDPE (¯M w = 92 000) maxima were at angles of 14 to 20°.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00540798
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  • 10
    Electronic Resource
    Electronic Resource
    Uromyces viciae-fabae onVicia faba: Scanning electron microscopy of frozen-hydrated material (1982)
    Springer
    Protoplasma 111 (1982), S. 28-37 
    Details
    ISSN: 1615-6102
    Keywords: Frozen-hydrated ; Low temperature SEM ; Uredium ultrastructure ; Uromyces viciae-fabae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The ultrastructure of uredia, intercellular and intracellular hyphae ofUromyces viciae-fabae onVicia faba has been studied by scanning electron microscopy of frozen-hydrated material. Frozen-hydrated leaves will readily fracture and can be viewed on the cold stage of the microscope at liquid nitrogen temperatures for several hours without visible surface changes occurring. Both fungal and host-plant cells show a high degree of morphological preservation with little or no loss of cell contents and with minimal signs of shrinkage. Intracellular hyphae may be filamentous and branched or short and lobed. They are constricted at the point of entry into the host cell. Intercellular matrix material is well preserved around developing pedicels and urediospores and may act as a lubricant. The technique described is very quick compared with conventional preparatory procedures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01287644
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