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  • 1
    Electronic Resource
    Electronic Resource
    Parietal reinforcement prostheses: an original intraperitoneal experimental study (2000)
    Springer
    Hernia 4 (2000), S. 61-66 
    Details
    ISSN: 1248-9204
    Keywords: Hernia ; Incisional hernia ; Prosthesis ; Polyglactin ; Polyester
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The use of prosthetic materials is widely accepted for incisional and complex hernias, but the type of prosthesis in the abdominal wall still arouses acute controversy. We report an original experimental protocol testing three material placed intraperitoneally in the rat: a polyester mesh, a compound prosthesis (juxtaposition of a polyester mesh and a mesh of polyglactin 910) and a composite prosthesis (where fibers of polyester and polyglactin 910 were woven in the same mesh). There were two main criteria for assessment: the biologic tolerance to the material on the one hand, characterized histologically by the ratio of the surface of fibrosis to the surface of the inflammatory granuloma in contact with the material, and the nature of the adhesions between prosthesis and abdominal wall and the intraperitoneal viscera on the other. Statistical analysis of the results led to a preference for the homogeneous polyester prosthesis, compared with compound and composite prostheses (polyester and polyglactin 910) and to abandonment of the intraperitoneal site for insertion of such materials.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02353744
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  • 2
    Electronic Resource
    Electronic Resource
    Stable Atmospheric Boundary-Layer Experiment in Spain (SABLES 98): A Report (2000)
    Springer
    Boundary layer meteorology 96 (2000), S. 337-370 
    Details
    ISSN: 1573-1472
    Keywords: Drainage currents ; Internal gravity waves ; Low-level jet ; Stable boundary layer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract This paper describes the Stable AtmosphericBoundary Layer Experiment in Spain (SABLES 98),which took place over the northern Spanish plateaucomprising relatively flat grassland,in September 1998. The main objectives of the campaign were to study the properties of themid-latitude stable boundary layer (SBL).Instrumentation deployed on two meteorologicalmasts (of heights 10 m and 100 m)included five sonic anemometers, 15 thermocouples,five cup anemometers and three propeller anemometers,humidity sensors and radiometers.A Sensitron mini-sodar and a tetheredballoon were also operated continuously. Atriangular array of cup anemometers wasinstalled to allow the detection ofwave events. Two nocturnal periods analysedon 14–15 and 20–21 September are used toillustrate the wide-ranging characteristics of the SBL.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1002609509707
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  • 3
    Electronic Resource
    Electronic Resource
    Validity of the hospital discharge diagnosis in epidemiologic studies of biliopancreatic pathology (2000)
    Springer
    European journal of epidemiology 16 (2000), S. 533-541 
    Details
    ISSN: 1573-7284
    Keywords: Biliary and pancreatic neoplasms – diagnosis ; Epidemiology ; Multicentre studies ; Validity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: The aim was to analyse the magnitude, direction and predictors of change in the main hospital discharge diagnosis (HDD) after a clinical expert review, among patients included in a multicentre molecular epidemiologic study of biliopancreatic diseases. Methods: A total of 602 patients with a suspicion diagnosis of pancreas cancer (PC), cancer of the extrahepatic biliary system (CEBS) or benign biliopancreatic pathologies (BPP) were prospectively recruited at five general hospitals. A structured form was used to collect information from medical records. A panel of experts revised all diagnostic information and established the main clinico-pathological diagnosis (CPD) by consensus. Results: Of the 204 cases with a HDD of PC, 176 (86%) were deemed to have a CPD of PC, eight of CEBS, twelve a neoplasm of different origin, four BPP and four syndromic diagnoses. Thus, 28 cases (14%) were false positives. Of the 129 patients with a HDD of CEBS, 15 (12%) were false positives. Nine of the 396 cases with a HDD of non-PC (2%) had a CPD of PC (false negatives), whilst 14 of 471 patients with a HDD of non-CEBS (3%) were deemed to have CEBS. Overall, sensitivity and specificity of HDD for PC were, respectively, 95 and 93%, and for CEBS, 89 and 97%. Cytohistological confirmation and laparotomy were independent predictors of diagnostic change. Conclusions: Validity of the HDD was high, but its association with some clinical variables suggests that sole reliance on HDD can significantly bias results, and highlights the need to review all HDDs. Alternatively, only patients at high risk of misdiagnosis could be reviewed: primarily, those lacking a cytohistological diagnosis or a laparotomy. No exclusions appear warranted solely on the basis of age, gender or tumour spread.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1007692408457
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  • 4
    Electronic Resource
    Electronic Resource
    Surface fluxes estimation over agricultural areas. Comparisonof methods and the effects of land surface inhomogeneity (2000)
    Springer
    Theoretical and applied climatology 67 (2000), S. 65-79 
    Details
    ISSN: 1434-4483
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary  The Bowen Ratio-Energy Balance (BREB) and the aerodynamic method were used to estimate turbulent fluxes of sensible and latent heat flux over an irrigated agricultural area (IAA) and over two dry agricultural areas (DAA1 and DAA2). These turbulent fluxes were analysed and particular attention paid to two specific areas. First, a quantitative analysis of sensible and latent heat fluxes obtained by the BREB method was carried out, taking into account different soil type, vegetation and surface conditions. The results showed that in IAA latent heat flux was higher than sensible heat flux, except in summer months, while in DAA1 and DAA2, sensible heat flux was higher except in the months when the vegetation was at the stage of maximum development. Second, sensible and latent heat fluxes estimates from the BREB method were compared with those obtained from the aerodynamic method. In this comparison factors such as soil type, soil vegetation cover, homogeneity or inhomogeneity of terrain and mesoscale effects such as orography and wind patterns were taken into account. The results show that in conditions of light wind, the two methods only concur if the condition of horizontal homogeniety is fulfilled. The influence of inhomogeneity seems to decrease and agreement between methods improves, if the wind is stronger and the effects of meso and synoptic scales are predominant.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007040070016
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