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  • 1980-1984  (1)
  • 1970-1974  (1)
  • 1960-1964  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Involvement of the Digestive Tract in Cowden's Disease (1980)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of dermatology 19 (1980), S. 0 
    Details
    ISSN: 1365-4632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: : A 28-year-old white man had Cowden's disease and multiple gastrointestinal polyps. Of the 56 cases of Cow-den's disease which have been reported so far, esophageal and gastrointestinal involvement have been observed in only 18 patients. Endoscopic, radiologic, and histopathologic features of these lesions were confirmed in the present patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-4362.1980.tb00810.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Studies on the food and feeding habits of soil oribatei in a black pine plantation (1973)
    Springer
    Oecologia 12 (1973), S. 413-426 
    Details
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Food preferences and feeding behaviour of abundant species of oribatid mites in a black pine plantation have been studied by soil sectioning technique. It is suggested that Microtritia minima, Rhysotritia duplicata and Phthiracarus sp. play an important role in the mechanical breakdown of decaying litter and, by contributing to the humification process, help in the accumulation of plant nutrients. Due to poor mobility their contribution to fungal spore dissemination is insignificant. Chamobates incisus was determined to be a fungivorous species while no exact information could be obtained about the precise food of Tectocepheus velatus. Rest of the species seemed to consume large quantities of decaying litter but in view of their low populations throughout, presumably they do not contribute appreciably in the humification process. The speed of decomposition of faecal pellets seemed to be governed by the type of food ingested. The role of oribatid fauna in the litter and soil ecosystems is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00345051
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    La mesure écologique de la température par détermination de la vitesse d'inversion du saccharose (1960)
    Springer
    Plant ecology 9 (1960), S. 197-207 
    Details
    ISSN: 1573-5052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Résumé Nous avons repris la méthode de mesure écologique de la température moyenne décrite par Pallmann et al. pour en simplifier l'emploi et en étendre le champ d'application. Cette méthode consiste à suivre l'inversion du saccharose dans une solution acide. La relation entre la vitesse d'inversion du saccharose et la température étant connue, on peut facilement déterminer une température moyenne d'un milieu à partir du pouvoir rotatoire d'une solution qui y a séjourné un temps donné. Les modifications que nous proposons sont les suivantes: 1. Remplacement de la stérilisation de la solution par l'emploi d'un antiseptique. 2. Modification du pH de la solution afin d'accélérer la vitesse d'inversion et de permettre la détermination de la température moyenne de courtes périodes. 3. Utilisation de la loi d'Arrhenius, plus précise que l'approximation proposée par Pallmann et al., pour déterminer la relation entre la vitesse d'inversion du saccharose et la température. Nous montrons enfin comment la méthode peut être adaptée à des exigences particulières par modification du pH de la solution. Nous tenons à exprimer notre gratitude à Monsieur le Professeur H. Debauche sous la direction de qui ce travail a été mené. Nos très vifs remerciements vont aussi au Dr. J. Berthet (Laboratoire de Chimie physiologique, Louvain) dont les suggestions et les critiques nous furent très précieuses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00239685
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    Paper (German National Licenses)
    Fulltext
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