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  • Chemistry  (2)
  • Pattern of breathing  (2)
  • Helicobacter pylori  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Respiration Physiology 68 (1987), S. 345-357 
    ISSN: 0034-5687
    Keywords: Control of breathing ; Pattern of breathing ; Rest ; Ventilation
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Respiration Physiology 68 (1987), S. 331-344 
    ISSN: 0034-5687
    Keywords: Control of breathing ; Pattern of breathing ; Rest ; Ventilation
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Digestive diseases and sciences 39 (1994), S. 1488-1492 
    ISSN: 1573-2568
    Keywords: Helicobacter pylori ; children ; symptomatology ; gastritis ; ulcers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Helicobacter pylori is an established cause of chronic-active gastritis in both adults and children. However, it is unclear whetherH. pylori causes specific clinical symptoms. Therefore, the spectrum of clinical symptoms associated withH. pylori infection was studied in consecutive symptomatic children undergoing diagnostic endoscopy at two pediatric centers, using a structured questionnaire. In Toronto, Canada, 86 of 97 eligible children were enrolled into the study and in Limerick, Ireland, 24 of 29 were enrolled. The frequency of biopsy-confirmedH. pylori infection in Limerick, 16 of 24 (67%), was fivefold higher than in Toronto, 11 of 86 (13%,P=0.0001). The two study populations were comparable in clinical presentation and duration of symptomatology and did not differ in age (11.9±3.5 and 11.6±2.0 years, respectively). Within both study populationsH. pylori infection was not associated with specific clinical symptomatology, including duration of abdominal pain, location of pain, and history of melena or vomiting.H. pylori was positively associated with hematemesis in the Limerick group. These findings demonstrate thatH. pylori infection in children is not associated with specific clinical symptomatology across varying geographical locations.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 21 (1979), S. 1787-1798 
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The hydraulic characteristics and the denitrifying capacity of a single-stage 0.5 m diam completely submerged rotating biological contactor were studied. A two compartment model was proposed and fitted the data obtained from pulse dye applications at two different flow rate. Denitrification rates with an influent C:N ratio at 1.5:1 proved to be independent of NO3 + NO2-N concentration. The pooled denitrification data obtained under the two different flow rates could be fitted by an Arrhenius relationship for temperature over the range of 5 to 25°C. The activation energy was 16500 cal/g-mol. A substantially higher volumetric removal capacity was observed than has previously been reported for either suspended or supported denitrifying systems.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 0021-9304
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: In order to study the influence of residual stresses on dimensional accuracy and mechanical properties of denture bases, an experimental model was devised for measurement of residual stresses in acrylic denture base polymers. Rectangular bar coupons were cut from resin plates heat processed by conventional dental methods. They included samples which had been slow and fast cooled after polymerization and had been stored in dry and wet environments. Uniaxial residual stress distributions for each coupon were disclosed by removing layers of known thicknesses and measuring the ensuing deflection of the specimens. Coupons of a commercial acrylic resin were annealed and used as controls. ANOVA and Scheffe's test were used to compare experimental conditions at the 95% confidence level. Dry specimens exhibited residual surface compressive stresses from 0.43-0.83 MPa (62-120 psi). Water-stored specimens showed higher stress levels, 2.86-3.24 MPa (414-470 psi). Slow cooled pigmented acrylic coupons which were dry showed higher residual stresses compared with other dry but nonpigmented specimens. No significant differences were found between pigmented or clear coupons which contained moisture.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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