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  • 1
    Electronic Resource
    Electronic Resource
    Alternative method for the calculation of the detection limit in emission spectrography (1975)
    s.l. : American Chemical Society
    Analytical chemistry 47 (1975), S. 188-189 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60351a016
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  • 2
    Electronic Resource
    Electronic Resource
    The moment method in stochastic perturbation of angular correlations (1976)
    Springer
    The European physical journal 279 (1976), S. 141-144 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Time-differential perturbed angular correlation attenuation coefficients for isotropic fluctuating interactions are calculated to higher order in 〈Ω 2〉1/2 Τ c .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01437869
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  • 3
    Electronic Resource
    Electronic Resource
    The quasimolecular 1sσ orbital in collision systemsα(Z 1+Z 2)≳1, its excitation and spectroscopy (1980)
    Springer
    The European physical journal 296 (1980), S. 11-21 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An analytical formula for the excitation probability of the quasimolecular 1sσ orbital as a function of the impact parameterb is derived for collision systems withα(Z 1+Z 2)≳1. This formula describes well all existing experimental data for those collision systems except for the heaviest system Pb+Cm (Z 1+Z 2=178) at impact parametersb≲40 fm. It is discussed in which way energies of the quasimolecular 1sσ orbital can be extracted from experimental 1sσ vacancy production data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01415610
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  • 4
    Electronic Resource
    Electronic Resource
    On the possible existence of superheavy elements in monazite (1977)
    Springer
    The European physical journal 280 (1977), S. 39-44 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Proton-induced x-ray studies of monazite grains from different occurrences show no evidence for primordial superheavy elements. It is demonstrated that the recently reported evidence for superheavy elements in monazite inclusions of biotite mica showing giant halo formation is not significant: the observed differences in the x-ray spectra of normal and giant halo inclusions are due to different backgrounds in the respective spectra. Moreover, it is shown that the 27.2 keV line tentatively interpreted as theL α1x-ray of elementZ=126 can be entirely attributed to the reaction140Ce(p,n γ)140Pr.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01438107
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  • 5
    Electronic Resource
    Electronic Resource
    Cytomegalovirus infection and disease in renal transplant patients treated with cyclosporin (1989)
    Springer
    Transplant international 2 (1989), S. 92-95 
    Details
    ISSN: 1432-2277
    Keywords: Cytomegalovirus infection in kidney transplantation ; Cytomegalovirus disease and rejection ; Rejection and cytomegalovirus disease ; Risk factors for cytomegalovirus disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In this prospective study, the incidence of cytomegalovirus (CMV) infection and CMV disease was determined in 175 renal transplant recipients on cyclosporin and low-dose prednisone. CMV infection occurred in 51.4% of the patients, CMV disease in 13.7%. The major manifestations of CMV disease were fever of unknown origin and leukopenia. In the group with CMV infection, there was an increased occurrence of rejection (60% in infected vs 27% in noninfected patients). In most patients (41/54), the rejection preceded the CMV infection. CMV infection did not lead to a decreased graft survival. There was no close time relationship between the onset of clinical symptoms of CMV disease and the laboratory confirmation of CMV infection. A subgroup of patients at risk for the development of severe CMV disease could not be identified.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02459326
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  • 6
    Electronic Resource
    Electronic Resource
    Studies on the development of the charge heterogeneity of the influenza virus glycoproteins (1985)
    Springer
    Archives of virology 83 (1985), S. 311-317 
    Details
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The heterogeneity in charge of the influenza virus glycoproteins, hemagglutinin (HA) and neuraminidase (NA) is retained, when glycosylation is inhibited by tunicamycin (TM) or 2-deoxyglucose (2-dg). This is in contrast to the charge heterogeneity of the G protein of vesicular stomatitis virus (VSV), which is mainly due to heterogeneous sulfation of the carbohydrate side chains and therefore is abolished by the above mentioned inhibitors of glycosylation. Thus, the charge heterogeneity of influenza virus glycoproteins might be attributable to some as yet unidentified modifications of the polypeptide backbone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01309926
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  • 7
    Electronic Resource
    Electronic Resource
    Viral glycoproteins as determinants of pathogenicity (1982)
    Springer
    Medical microbiology and immunology 170 (1982), S. 145-153 
    Details
    ISSN: 1432-1831
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Conclusion With myxoviruses we are now beginning to understand the complex biological phenomenon of pathogenicity at the molecular level. Proteolytic activation of the viral glycoproteins proved to be a very important determinant for pathogenicity. Variations in pathogenicity are the result of structural variations of the glycoproteins. The available evidence indicates that these structural variations are confined to the cleavage site, i.e., to a small but functionally important part of the molecule.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02298195
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  • 8
    Electronic Resource
    Electronic Resource
    Evidence for the contribution of the host species to the extent of antigenic variation of N1 influenza virus neuraminidase (1983)
    Springer
    Medical microbiology and immunology 172 (1983), S. 1-11 
    Details
    ISSN: 1432-1831
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract N1 influenza virus neuraminidases (NA) derived from avian, swine and human virus isolates, including the genetically related classic strains A/FPV/Rostock/34, A/Swine/1976/31, A/PR8/34 and A/FM1/47, were analysed serologically by neuraminidase inhibition (NI), inhibition of virus release (IVR) and competitive radio-immunoassays (competitive RIA). Comparing the three tests, competitive RIA appeared to be more reliable than NI and IVR for a quantitative assessment of antigenic relatedness. Together with evidence presented by others, these studies indicate that the host species contributes to the extent of antigenic variation of NAses. In contrast to NAses of human viruses where antigenic drift occurs readily, NAses of animal influenza viruses, from birds or mammalians, undergo far fewer antigen changes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02123672
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  • 9
    Electronic Resource
    Electronic Resource
    Mother to child transmission of hepatitis B virus in the Philippines (1989)
    Springer
    Infection 17 (1989), S. 275-279 
    Details
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In den Philippinen wurde zwischen 1981 und 1983 eine Verlaufsstudie zur Mutter-Kind-Übertragung des Hepatitis-B-Virus durchgeführt. Bei 527 Müttern fand sich eine HBsAg-Prävalenz von 8,5%. Sieben von 17 Neugeborenen (41,2%) der HBsAg-Carrier-Mütter wurden im Ablauf der ersten 12 Lebensmonate HBsAg-positiv. Bei Kindern HBsAg-positiver Mütter war das Risiko einer HBsAg-Serokonversion 20mal höher als bei Kindern HBsAg-negativer Mütter (OR=18,9; 95%; Ci=2,0−86,6). Bei Müttern, die nicht nur HBsAg, sondern auch HBeAg-Carrier waren, bestand ein noch größeres Risiko für das Kind, HBsAg-positiv zu werden (OR=91,0; 95%; Ci=49,2−164,8). Bei Müttern, die HBsAg-Carrier, aber anti-HBe-positiv waren, bestand nur ein sehr geringes Übertragungsrisiko. Schätzungsweise sind ein Drittel der Fälle von HBsAg-Positivität bei einjährigen Kindern auf Mutter-Kind-Übertragung zurückzuführen. Die Bedeutung dieser Daten für die Planung von Impfaktionen zur Prävention von HBV-Infektionen wird diskutiert.
    Notes: Summary A follow-up study of mother to infant transmission of hepatitis B virus was conducted in the Philippines between 1981 and 1983. The prevalence of HBsAg among 527 mothers was 8.5%. Overall, seven out of 17 (41.2%) infants born to HBsAg carrier mothers became HBsAg positive within the first 12 months of life. The risk of becoming HBsAg positive was about 20 times higher for infants born to HBsAg positive mothers than for infants born to HBsAg negative mothers (OR=18.9, 95% Ci=2.0−86.6). The risk was even higher if the mother was a carrier of both HBsAg und HBeAg (OR=91.0, 95% Ci=49.2−164.8). However, the risk of transmission was very low if the mother was an HBsAg carrier and anti-HBe positive. It was estimated that mother to infant transmission accounts for about one third of HBsAg positivity at one year of age. The implications of these findings in the planning of vaccination campaigns to prevent HBV infections are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01650707
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  • 10
    Electronic Resource
    Electronic Resource
    Cannibalism as a life boat mechanism (1988)
    Springer
    Journal of mathematical biology 26 (1988), S. 619-633 
    Details
    ISSN: 1432-1416
    Keywords: Structured population model ; McKendrick equation ; Subcritical bifurcation ; Solver
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Mathematics
    Notes: Abstract Under certain conditions a cannibalistic population can survive when food for the adults is too scarce to support a non-cannibalistic population. Cannibalism can have this lifeboat effect if (i) the juveniles feed on a resource inaccessible to the adults; and (ii) the adults are cannibalistic and thus incorporate indirectly the inaccessible resource. Using a simple model we conclude that the mechanism works when, at low population densities, the average yield, in terms of new offspring, due to the energy provided by one cannibalized juvenile is larger than one.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00276144
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