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Magnetic resonance imaging of normal and pathological white matter maturation (1988)

Baierl, P. ; Förster, Ch. ; Fendel, H. ; [et al.]

Springer

Pediatric radiology 18 (1988), S. 183-189

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ISSN: 1432-1998

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Notes: Abstract Fifty children between 3 months postnatal and 16 years of age were examined by means of a 1.5 T superconductive magnet, run at 0.35 and 1.0 T. The myelination was studied qualitatively and quantitatively (relaxation times, proton densities, image contrast). With increasing age, a decrease of T1 and proton density of white matter was found, which was complete at one year of age. In regions with a slow progression of myelination, gray/white matter contrast showed an increase up to the end of the first decade. Pathological white matter maturation was diagnosed either as an abnormal transformation of myelin (characterized by abnormal relaxation values), or as a deficient or delayed myelin formation (in comparison with age-matched controls).

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02390391

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Theory of coherent anti-stokes continuum resonance Raman scattering in diatomic molecules (1986)

Beckmann, A. ; Baierl, P. ; Kiefer, W.

Chichester [u.a.] : Wiley-Blackwell

Journal of Raman Spectroscopy 17 (1986), S. 107-111

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ISSN: 0377-0486

Keywords: Chemistry ; Analytical Chemistry and Spectroscopy

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Physics

Notes: A theory is presented which describes coherent anti-Stokes resonance Raman scattering via continuum electronic states of diatomic molecules. It is applied to the dissociative continuum of the bounded B(3Π0+u) state and the continuum of the repulsive 1Π1u state of the iodine molecule. The theory allows numerical calculations of continuum resonance CARS spectra.

Additional Material: 2 Ill.