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  • Crown ether complexes  (1)
  • Endemic situation in France  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Potassium tetraphenylimidodiphosphinate complex of 1,4,7,10,13,16-hexaoxacyclooctadecane an inorganic (carbon-free) chelate ring (1993)
    Springer
    Monatshefte für Chemie 124 (1993), S. 471-476 
    Details
    ISSN: 1434-4475
    Keywords: Alkaline complexes ; Crown ether complexes ; Imidodiphosphinate chelates ; Inorganic rings ; Phosphazene heterocycles
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Kaliumtetraphenylimidodiphosphinat, [K][Ph 2P(O)NP(O)Ph 2], reagiert mit 18-Krone-6-ether unter Ausbildung des mohydydratisierten Komplexes [K(18-Krone-6)][Ph 2P(O)-NP(O)Ph 2]. Die Verbindung zeigt eine Kalium-Sauerstoff-Wechselwirkung under Formierung eines anorganischen (Kohlenstoff-freien) Chelat-Ringes. Dies ist im Gegensatz zum Schwefel-Analogen, das keine Kation-Anion-Wechselwirkung zeigt.
    Notes: Summary Potassium tetraphenylimidodiphosphinate, [K][Ph 2P(O)NP(O)Ph 2], reacts with 18-crown-6 ether to give the monohydrated complex [K(18-crown-6][Ph 2P(O)NP(O)Ph 2]·H2O. The compound shows an interaction potassium-oxygen, forming an inorganic (carbon free) chelate ring and it is different to the sulphur homolog which has no interaction cation-anion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00819515
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Clusters of meningococcal disease in France (1987–1988) (1992)
    Springer
    European journal of epidemiology 8 (1992), S. 737-742 
    Details
    ISSN: 1573-7284
    Keywords: Neisseria meningitidis ; Prophylaxis ; Endemic situation in France
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We analyzed 814 cases of meningococcal disease notified in 1987 and 1988 to the Ministry of Health. Data were obtained by report forms including informations about possible additional cases among contacts. Coprimary cases (occurring within 24 hours after the index case) and secondary cases (occurring more than 24 hours after index case) were all reviewed. Twenty eight clusters of meningococcal disease were identified involving 65 cases (8% of total cases). Twelve of the 814 cases (1.5%) were coprimary cases of an index case and 25 (3%) were secondary cases. The secondary attack rate was 530/100,000 among household contacts and 31/100,000 among school contacts. Seventy two per cent of the secondary cases occurred in the first week after index case. Thirty-eight percent of the secondary cases occurred in the 15–20 age group as opposed to 15% of single cases. Serogroup A was more often found in coprimary (33%) and secondary cases (17%) than in single cases (6%). In France, prophylaxis of secondary cases is administered to the classroom contacts of a case of meningococcal infection but is not required for the entire school except under epidemic conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00145393
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    Paper (German National Licenses)
    Fulltext
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