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  • Electronic Resource  (17)
  • 1990-1994  (7)
  • 1985-1989  (3)
  • 1980-1984  (4)
  • 1955-1959  (2)
  • 1950-1954  (1)
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  • Electronic Resource  (17)
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  • 1
    Electronic Resource
    Electronic Resource
    Photocycloadducts of dimethylmaleic anhydride with unsaturated acids and esters (1988)
    s.l. : American Chemical Society
    The @journal of organic chemistry 53 (1988), S. 2624-2629 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00246a045
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  • 2
    Electronic Resource
    Electronic Resource
    Direct Detection of Solar Neutrinos (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 647 (1991), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1991.tb32185.x
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  • 3
    Electronic Resource
    Electronic Resource
    Impedance and modulus spectroscopy of semiconducting BaTiO3 showing positive temperature coefficient of resistance (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 66 (1989), S. 3850-3856 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Polycrystalline barium titanate that has been doped to give a positive temperature coefficient of resistance (PTCR) effect is an inhomogeneous material electrically. Analysis of ac impedance data using the complex impedance plane representation gives the dc resistance of PTCR ceramics. By additional use of the complex electric modulus formalism to analyze the same data, the inhomogeneous nature of the ceramics may be probed. This reveals the presence of two, sometimes three elements in the equivalent circuit. Grain-boundary and bulk effects may be distinguished from capacitance data: grain-boundary effects have temperature-independent capacitances, whereas bulk effects show a capacitance maximum at the Curie point and Curie–Weiss behavior above the Curie point. Both grain-boundary and bulk effects appear to contribute to the PTCR effect. These results reveal limitations in current theories of the PTCR effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.344049
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  • 4
    Electronic Resource
    Electronic Resource
    Quantifying serum antibody class and subclass responses by enzyme immunoassay in humidifier-related disease (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 21 (1991), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Antibody activity in the major classes and IgG subclasses against antigens in factory humidifier water was quantified by enzyme immunoassay (EIA) in 88 subjects who were exposed at work to the output from these contaminated humidifiers. Those with work-related symptoms had significantly higher mean titres than those who were symptom free, although values overlapped. The individuals with the highest IgG antibody titres also had the highest titres of IgM and IgA antibody, and these parameters did not discriminate between those with and without symptoms any better than the IgG titre. This was also true for the IgG subclasses where activity was predominantly measured in IgG 1. Quantifying the IgG antibody allowed us to demonstrate a significant correlation with years of work exposure (P〈0.001). There was no significant association between antibody and cigarette smoking, as assessed by smoking history and confirmed objectively by serum cotinine levels. There was a significant correlation with total IgG level (P〈0.001) suggesting that a non-specific immune enhancement may accompany the specific response. The antibody titres were followed up to 3 years after modification of the humidification systems, and during this time symptoms resolved and the antilunK levels progressively fell to undetectable levels. The EIA was adapted to measure antigen at nanogram levels thus providing a rapid test for screening of humidifier water as a technique that may help identify the nature of the antigens involved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1991.tb00853.x
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  • 5
    Electronic Resource
    Electronic Resource
    Absence of Shock Hazard with Certain Multigap Spark Circuits (1956)
    [s.l.] : Nature Publishing Group
    Nature 177 (1956), S. 1175-1176 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The experiments to be described were carried out with spark circuits of a type and power-level widely used in spectrographic analysis. In each of the circuits shown, Gx represents the control gap determining the striking voltage, while Gz represents the analysis gap which, for convenience in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1771175a0
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  • 6
    Electronic Resource
    Electronic Resource
    Sporidesmium bakeri and Facial Eczema of Sheep in the Field (1959)
    [s.l.] : Nature Publishing Group
    Nature 184 (1959), S. 1327-1328 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] At the Manutuke Research Station, Gisborne, a facial eczema research farm of the New Zealand Department of Agriculture, two, 1-acre fields (No. 20 and No. 31), of perennial rye grass, white clover have been closely mown, at 7 14 day intervals, with motor lawn-mowers since the spring flush of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1841327b0
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  • 7
    Electronic Resource
    Electronic Resource
    Elastic scattering of20Ne on24Mg (1983)
    Springer
    The European physical journal 311 (1983), S. 297-302 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Elastic scattering of20Ne on24Mg was studied at an incident20Ne energy of 40 MeV. Scattered20Ne and24Mg nuclei were observed in coincidence with a standard surface barrier and a position sensitive detector. The measured angular distribution shows periodic oscillations which are identified with the24Mg(20Ne,24Mg)20Ne reaction. Taking interference between elastic scattering and transfer into account, anα-spectroscopic factor ofS=0.08±0.02 was deduced from the amplitude of the oscillations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01415684
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  • 8
    Electronic Resource
    Electronic Resource
    The anatomy of pain sensibility (1953)
    Springer
    Journal of neural transmission 7 (1953), S. 135-146 
    Details
    ISSN: 1435-1463
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01227053
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  • 9
    Electronic Resource
    Electronic Resource
    Production of superoxide by neutrophils (1983)
    Springer
    Cellular and molecular life sciences 39 (1983), S. 61-62 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Oxygen uptake by neutrophils has been stimulated by particulate serum-treated-zymosan (STZ) and soluble N-formylmethionyl-leucyl-phenylalanine (FMLP) in the presence and absence of the superoxide radical scavenger, cytochrome C. Results indicate that FMLP may stimulate neutrophils to produce superoxide but that STZ may not.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01960628
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  • 10
    Electronic Resource
    Electronic Resource
    Bias in manta tow surveys of Acanthaster planci (1990)
    Springer
    Coral reefs 9 (1990), S. 155-160 
    Details
    ISSN: 1432-0975
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences
    Notes: Abstract To investigate the biases associated with manta tow surveys of Acanthaster planci, counts obtained by manta-towed observers were compared with counts made on SCUBA swims under a limited range of conditions. Five 10 m wide strip transects on different parts of two reefs and with different densities of A. planci were surveyed. On average, 22.7% of starfish counted on SCUBA searches were counted on manta tows over the same transect (SD=12.0%, n=69). This proportion is termed sightability. As sightability decreases with increasing transect width, we estimate that, on average, less than 5% of the A. planci present are counted on routine manta tows which are conducted over transect of undefined width. Multiple regression analysis was used to determine which of 33 variables explained most of the variation in sightability in 10 m wide transects. The most influential variables were the proportion of cryptic starfish and an index of the degree of reef complexity. A regression equation designed to improve estimates of the abundance of A. planci on routine manta tows was developed. However, as it explained only 39% of the variation in sightability, this equation is of limited value in stabilising the negative bias associated with manta tow counts. In view of the variability of this bias, the manta tow technique is not suitable for estimating absolute densities of A. planci. Manta tow surveys are appropriate for identifying gross relative differences between densities of A. planci, and thus for determining broad-scale patterns of abundance. As such, they are a cost-effective method of estimating the geographical extent of A. planci outbreaks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00258228
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