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  • 1995-1999  (3)
  • 1975-1979
  • Digital radiography  (1)
  • Key words: Surfactant protein A—Clara cell 10-kDa protein—Bronchoalveolar lavage—Smoking.  (1)
  • W/O microemulsion  (1)
Source
Material
Years
  • 1995-1999  (3)
  • 1975-1979
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Image processing in the digital tomosynthesis for pulmonary imaging (1995)
    Springer
    European radiology 5 (1995), S. 96-101 
    Details
    ISSN: 1432-1084
    Keywords: Digital radiography ; Image processing ; Subtraction ; Thorax ; Tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Digital tomosynthesis makes it possible to reconstruct multiple tomographs from digital data obtained during a single tomographic motion and permits digital processing, which adds a number of special advantages to the well-known advantages of conventional tomography. We performed digital tomosynthesis with a fluororadiographic TV unit with tomographic function which was capable of producing pulsed low-and high-energy X-rays alternately, and we studied digital image processing to improve the image clarity of the reconstructed tomographs. To identify the optimal parameters for processing image data by means of spatial frequency filtration we evaluated the spatial frequency distribution of image data in linear tomographs of the lung, and on the basis of the results of this study we developed several types of digital image processing to reduce tomographic blur and system noise, to improve visualisation of faint opacities, to reduce resistant tomographic blur as well as overall blur, and to generate low-noise bone images based on dual-energy subtraction tomosynthesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00178089
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    BAL Surfactant Protein A and Clara Cell 10-kDa Protein Levels in Healthy Subjects (1998)
    Springer
    Lung 176 (1998), S. 257-265 
    Details
    ISSN: 1432-1750
    Keywords: Key words: Surfactant protein A—Clara cell 10-kDa protein—Bronchoalveolar lavage—Smoking.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Lung surfactant protein A (SP-A) and Clara cell 10-kDa protein (CC10) are the most abundant proteins produced locally in the lower respiratory tract, as assessed in bronchoalveolar lavage (BAL) analysis. However, it is not known what factors influence SP-A and CC10 levels in BAL fluids, and the relationship between SP-A and CC10 levels in BAL fluids has been unclear. We measured SP-A and CC10 concentrations in BAL fluids from 11 healthy nonsmokers and 12 healthy smokers by enzyme-linked immunosorbent assays using specific antibodies. Mean SP-A and CC10 levels in BAL fluids of healthy smokers were significantly lower than those of healthy nonsmokers. SP-A values correlated significantly with CC10 and phospholipid values in BAL fluids. CC10 values tended to correlate with phospholipid values in BAL fluids. On BAL examinations using three 50-ml aliquots, the mean SP-A level in the second lavage was 2.0-fold and 2.4-fold, respectively, of that in the first and third lavages, and the mean CC10 level in the first lavage was 5.0-fold and 5.6-fold, respectively, of that in the second and third lavages. We conclude that BAL fluid SP-A and CC10 levels are influenced by the BAL methods and by cigarette smoking. There is a significant positive correlation between SP-A and CC10 values in BAL fluids of healthy subjects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00007608
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Solubilized states of water and formation of reversed micelles in polyoxyethylated nonylphenyl ethers in cyclohexane media (1995)
    Springer
    Colloid & polymer science 273 (1995), S. 195-199 
    Details
    ISSN: 1435-1536
    Keywords: Reversed micelle ; W/O microemulsion ; Polyoxyethylene nonylphenyl ether
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The limiting amounts of solubilization of water in the concentration range 0–200 mmol kg−1 polyoxyethylene (6 and 10) nonylphenyl ethers (NP-6 and NP-10)/cyclohexane solutions were measured by the Karl-Fischer method at 25°C. Utilizing NMR, ESR, and near infrared spectroscopic techniques, the states of water in the solubilization region obtained were examined as a function of the molar ratio of water to surfactants at various surfactant concentrations. In NP-6 system, three solubilized states of water, i.e., water interacted directly with the oxyethylene moiety of surfactant, bound water next to the hydrated oxyethylene moiety, and bulk-like water were built up. However, in NP-10 system only directly interacted water was present. It was found that the directly interacted water is distributed between monomeric surfactants and reversed micelles, and others are distributed to swollen micelles and W/O microemulsions. In addition, the minimum amounts of water required to form reversed and swollen micelles were calculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00654018
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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