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  • 1985-1989  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    Journal of linguistics 22 (1986), S. 241-242 
    ISSN: 0022-2267
    Source: Cambridge Journals Digital Archives
    Topics: Linguistics and Literary Studies
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Trente-six opérés ne présentant aucun trouble ont été soumis 12.7 ans en moyenne après leur intervention gastrique à une exploration de routine comprenant: endoscopie, mesure du pH, biopsies multiples lors de l'endoscopie et scintigraphie au99mTc HIDA pour apprécier le reflux entérogastrique. Neuf de ces opérés avaient subi une gastrectomie type Polya, 10 une vagotomie tronculaire avec antrectomie (type Billroth I), 9 une vagotomie tronculaire avec pyloroplastie, 8 une vagotomie hypersélective. Chez les sujets qui avaient subi une résection 9 patients qui montraient à l'évidence des facteurs de risques au niveau de la muqueuse gastrique (dysplasie, gastrite atrophique chronique, métaplasie intestinale) avaient un pH supérieur à 4 en période de jeûne. En revanche chez les sujets vagotomisés le pH à jeun ne fut d'aucune valeur pour préjuger de l'existence de facteurs de risques histologiques. La quantité et la durée du reflux entérogastrique appréciée par la scintigraphie pendant plus de 50 minutes ne montra aucune corrélation avec les facteurs de risques chez les sujets ayant subi une résection gastrique. Si la quantité et la durée du reflux chez les patients qui avaient subi une section des vagues furent plus grandes chez les opérés présentant des facteurs de risque, elles ne revêturent pas une valeur discriminatoire. On peut conclure de ces faits que la scintigraphie est une exploration de routine de peu de valeur et que la simple mesure du pH est utile seulement chez les gastrectomisés.
    Abstract: Resumen Treinta y seis pacientes asintomáticos fueron evaluados en un tiempo promedio de 12.7 años después de cirugía gástrica mediante endoscopia con múltiples biopsias y medición intragástrica del pH, y por estudio de reflujo enterogástrico con HIDA Tc 99m. Nueve pacientes habían sido sometidos a gastrectomía tipo Polya, 10 a vagotomía troncular y antrectomía (anastomosis Billroth I), 9 a vagotomía troncular y píloroplastia, 8 a vagotomía gástrica proximal. En el grupo resecado los 9 pacientes con evidencia histológica de factores de riesgo en la mucosa (displasia, gastritis atrófica crónica, metaplasia intestinal) exhibieron un pH intragástrico en ayunas superior a 4. Sinembargo, el pH en ayunas no fué de valor para predecir la aparición de factores de riesgo después de la vagotomía (6 de 17 pacientes). La cantidad y duración del reflujo enterogástrico según estudio con HIDA en un período de 50 minutos no mostró correlación con los factores de riesgo que se presentaron después de la resección. La cantidad y la duración del reflujo después de vagotomía fué superior en los pacientes con factores de riesgo, sin llegar a ser una prueba discriminatoria. Nuestra conclusión es que el estudio con HIDA es de valor limitado como un procedimiento de tamizaje y que la sola prueba de pH es de utilidad solamente en pacientes sometidos a resección gástrica.
    Notes: Abstract Thirty-six asymptomatic patients at a mean time interval of 12.7 years after gastric surgery were assessed by endoscopy, intragastric pH measurement, and multiple biopsy at a single endoscopy and by99mTc Imino Diacetic Acid (HIDA) scanning for enterogastric reflux: 9 patients had had Polya gastrectomy, 10 patients truncal vagotomy and antrectomy (Billroth I anastomosis), 9 patients truncal vagotomy and pyloroplasty, and 8 patients proximal gastric vagotomy. In the resection group the 9 patients with histological evidence of mucosal risk factors (dysplasia, chronic atrophic gastritis, intestinal metaplasia) had a fasting intragastric pH of more than 4. However, fasting pH was of no value in predicting the occurrence of risk factors after vagotomy (6 of 17 patients). The amount and duration of enterogastric reflux as measured by HIDA scanning over 50 minutes did not correlate with risk factors after resection. The amount and duration of reflux after vagotomy were greater in the patients with risk factors but were not discriminatory. We conclude that HIDA scanning is of little value as a screening procedure and that single sample pH testing is useful only in patients after a gastric resection.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Atlantic economic journal 13 (1985), S. 76-79 
    ISSN: 1573-9678
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Conclusion This model provides a useful starting point for the study of international capital mobility in the context of a small, open economy. All causes of capital flows are readily uncovered. Factor substitution plays a limited role, leading to straightforward properties. Factor price equalization and reciprocity relations are found. Future research could investigate positive, but less than infinite, capital supply elasticity, due perhaps to a risk premium.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Atlantic economic journal 14 (1986), S. 24-29 
    ISSN: 1573-9678
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Conclusion This study derives long-run income distributional impacts of immigration and capital flows in a general equilibrium model of Canada. While each factor is its own enemy, results indicate that capital and skilled professional labor are enemies as well. Both of these productive inputs are friends of other labor groups, which are common enemies. Factor friendship patterns are useful in evaluating income distributional impacts of a variety of policies designed to influence the international flow of productive labor and capital.
    Type of Medium: Electronic Resource
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