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  • 1
    Electronic Resource
    Electronic Resource
    Intranasal aerodynamic aspects in patients with nasal septal perforations (1992)
    Springer
    European archives of oto-rhino-laryngology and head & neck 249 (1992), S. 44-46 
    Details
    ISSN: 1434-4726
    Keywords: Nasal airflow ; Septal perforation ; Rhinomanometry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In an attempt to determine the influence of septal perforations on nasal airflow, nasal resistances were measured with active posterior rhinomanometry and compared before and after closure of asymptomatic septal perforations in five patients. No significant differences were found in the nasal resistances before and after closure of perforations either on inspiration or expiration. All patients were also unaware of any perceptive changes in nasal patencies after closure of the perforations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00175670
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A comparison of current expressions of nasal patency (1993)
    Springer
    European archives of oto-rhino-laryngology and head & neck 250 (1993), S. 249-252 
    Details
    ISSN: 1434-4726
    Keywords: Nasal resistance ; Rhinomanometry ; Nasal patency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Rhinomanometry is well established as a useful clinical method for objective assessment of nasal patency, although several expressions of nasal patency have been reported and universal standardization has not been achieved. In this communication, nasal resistances were calculated from the equation R = ΔP/V (R; resistance; ΔP; transnasal differential pressure; V; nasal airflow) at ΔP 100 Pa and at peak flow. Time-averaged nasal resistances and integrated nasal patencies were measured in 350 adult patients by Rhinorheograph MPR-1100 and processed by a NI-101 computer program. The values from the equation R = ΔP/V at ΔP 100 Pa were slightly lower than those from the same equation at peak flow or those from the time-averaging method. Correlations between the values of nasal resistance at peak flow and the time averaging method were very close to the line of identity. No significant correlations were demonstrated between integrated nasal patency and the values from the other three expressions. The differences of the results from these expression are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00171535
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Electronic structure and reactivity of Mg+(H2O) n cluster ions (1993)
    Springer
    The European physical journal 26 (1993), S. 180-182 
    Details
    ISSN: 1434-6079
    Keywords: 36.40.+d ; 33.80.Eh
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Electronically excited states of magnesium-water cluster ions, Mg+(H2O) n ,n=1–5, are studied by photodissociation after mass selection. The observed photodissociation spectra are assigned to the2P–2S type transitions localized on the Mg+ ion with the aid of ab initio CI calculations. In addition to evaporation of water molecules, photoinduced intracluster reaction to produce MgOH+(H2O) n is found to occur efficiently, with pronounced size dependence. The intriguing features observed in the mass spectrum of nascent cluster ions are discussed in relation to the stepwise solvation of this reaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01425657
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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