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  • Physics  (2)
  • health status  (1)
  • 1
    Electronic Resource
    Electronic Resource
    A pilot study of patient quality of life during radiation therapy treatment (1994)
    Springer
    Quality of life research 3 (1994), S. 267-272 
    Details
    ISSN: 1573-2649
    Keywords: Health perception ; health status ; quality of life ; radiation oncology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The purpose of this research was to develop a quality of life (QOL) tool that would help to reveal any physical, mental or emotional changes patients may experience while receiving radiation therapy. Research focusing on quality of life during radiation therapy is in its infancy. Although many tools to measure QOL have been developed, until very recently few had been geared specifically toward those receiving radiation therapy. In addition to a radiation-specific instrument, the goal was to develop a multidimensional measure that would be short in length and could be completed by the patient in 15 min or less. This new Quality of Life Radiation Therapy Instrument (QOL_RTI) is a visual analogue scale with 24 questions and is not site specific. Twenty-one patients with varlous diagnoses and treatment sites completed the questionnalre at baseline and then weekly during the course of radiation therapy. The internal consistency of the instrument (Cronbach's alpha) was 0.87. At baseline each patient also was asked to complete the Ferran's and Powers QLI Cancer Version 6 (QLIC); the correlation between the QLIC and the QOL-RTI was 0.47. These results are based on a small number of patients, but initlal efforts in creating an instrument that is quick and easy for patients to complete have been encouraging. An additional 70–80 patients are now being entered into a study using the QOL-RTI to further evaluate reliabillty and validity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00434900
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The measurement of crystallite size in ultrahigh-modulus polyethylene (1982)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 20 (1982), S. 1677-1685 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Crystal length determinations have been undertaken on ultrahigh-modulus linear polyethylene fibers by dark-field electron microscopy. There is good agreement between the results and those obtained from wide-angle x-ray diffraction line broadening. The crystal length distributions from the dark-field microscopy are also consistent with those determined by nitric acid etching. The significance of the present results is considered in the light of recent proposals for the structure of these materials and the achievement of high modulus.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1982.180200917
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Supramolecular structure of a high-modulus polyaromatic fiber (Kevlar 49) (1977)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 15 (1977), S. 2201-2211 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The supramolecular organization of the aromatic polyamide fiber Kevlar 49 has been studied using a combination of electron diffraction and electron microscope dark-field image techniques. The dark-field images derived using selected reflections from longitudinal sections exhibit axial banding of two main types having periodicities of 500 and 250 nm. Careful analysis, including tilting experiments, conclusively shows that the supramolecular architecture of these fibers consists of a system of sheets regularly pleated along their long axes and arranged radially.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1977.180151212
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    Paper (German National Licenses)
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