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  • 1
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 82 (1985), S. 2718-2722 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The coexistence curve, the shear viscosity, and the angular and the spectral distribution of scattered light have been measured for butylcellosolve in water near its lower critical mixing point. We have examined the validity of the pseudospinodal concept for the interpretation of the diffusion coefficient near the critical point. The critical exponents obtained with the assumption of the pseudospinodal agree with the recent experimental and the theoretical values. The universal dynamic amplitude ratio R=1.03±0.06 obtained in the present work is in disagreement with the value R=1.2 calculated from the renormalization-group theory but in good agreement with R=1.03 of the prediction by Burstyn et al. The diffusion coefficient as a function of temperature and concentration is well represented in terms of a scaled function.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 570 (1989), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 65 (1989), S. 2728-2733 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: ZnSe homoepitaxial layers with high crystalline quality were grown on (100) ZnSe substrates (grown by the iodine vapor transport method) between 190 and 250 °C. The surface morphologies of homoepitaxial layers (homoepilayers) grown below 250 °C were all mirrorlike. The concentration of self-activated (SA) centers is related to the growth temperature. The band-edge photoluminescence (PL) intensity increases drastically with increasing temperature from 190 up to 210 °C, decreases above 210 °C, and the SA-PL intensity increases monotonically as the growth temperature increases. The mechanism of suppressing the occurrence of SA centers below 250 °C is assumed that the concentration of Zn vacancies diffused from the highly iodine-doped ZnSe substrates into the ZnSe homoepilayers reduces at this temperature region. The SA-PL intensity of the ZnSe homoepilayer with the strongest band-edge emission (grown at 210 °C) is the same or weaker than that of the best ZnSe heteroepitaxial layer (heteroepilayer). Below 200 °C, the FWHM of the ZnSe (400) diffraction is 14 arcsec which is the best value we have ever obtained, though the growth temperature seems to be too low to maintain the crystalline quality. The comparison on the crystalline quality with the ZnSe heteroepilayers is discussed in detail from the viewpoints of the epitaxial growth mechanism.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The rates of filtration through Nuclepore filters (5 or 8 μm) of blood from lampreys and Pacific salmon have been studied using a method which visualizes the flow pattern. From these measurements, passage times for single red blood cells have been calculated and serve as an index of their deformability. The deformability increases as temperature is raised in vitro, but even at 5°C the passage time of lamprey blood is relatively rapid. The increase in deformability with a rise in temperature is small relative to that found in other fish such as yellowtail and carp.The distribution of red cell volumes has shown the presence of a secondary peak for salmon blood taken during surgery which is reduced following recovery, the main peak being at a lower volume.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1435-1463
    Keywords: Neuroleptics ; dopamine ; prolactin ; hypothalamus ; clozapine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two atypical neuroleptic agents, clozapine and fluperlapine, produced rapid elevations in plasma PRL concentrations that were similar in magnitude to those produced by haloperidol. However, the PRL response to clozapine or fluperlapine was of much shorter duration than that elicited by haloperidol. Clozapine, but neither fluperlapine nor haloperidol, produced a rapid increase in the activity of tuberoinfundibular dopamine (TIDA) neurons, as evidenced by an enhanced accumulation of dihydroxyphenylalanine (DOPA) in the median eminence after the inhibition of DOPA decarboxylase. The clozapine-induced increase in DOPA accumulation was evident within 30 minutes after its administration and persisted for at least 4 hours. The clozapine-induced increase in the activity of TIDA neurons may account, in part, for the abbreviated PRL response to this neuroleptic. In addition, ability to produce a short-lived increase in PRL secretion in the rat appears to be common to the atypicl neuroleptic drugs.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 31 (1989), S. 346-348 
    ISSN: 1432-1920
    Keywords: Cervical canal stenosis ; Cranio-cervical junction ; Spinal cord atrophy ; Posterior laminectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A 38-year-old man with severe canal stenosis at the level of the atlas is reported. The clinical manifestations were muscular weakness and wasting of the upper limbs and spastic paresis of the lower limbs, which all progressed slowly. The atlas was hypoplastic and its retrodental space was narrow. The spinal cord was markedly compressed between the odontoid process and the posterior arch of the atlas. The clinical manifestations improved after a posterior laminectomy of the atlas.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-2072
    Keywords: Dopamine ; Prolactin ; Lithium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Maintenance of rats on a lithium-containing diet for 3–21 days resulted in a suppression of prolactin (PRL) secretion in vivo and in vitro. Lithium treatment also resulted in an increase in the activity of tuberoinfundibular dopaminergic neurons, as evidenced by an increased accumulation of dihydroxyphenylalanine (DOPA) in the median eminence after inhibition of DOPA decarboxylase and an increased concentration of dopamine in the anterior pituitary gland. The accumulation of DOPA in the neurointer-mediate lobe of the pituitary gland, the prefrontal cortex, the striatum and the nucleus accumbens was also enhanced by lithium treatment. It is concluded that lithium treatment enhances the synthesis of dopamine in many brain regions and that an increased activity of tuberoinfundibular dopaminergic neurons results in an enhanced inhibitory control of PRL secretion.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1435-1536
    Keywords: Mixed valence complex ; Prussian blue analog ; intervalence charge transfer ; polyion complex
    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 Prussian blue and its analogs bonded to poly(vinylamine hydrochloride) (PVAm · HCl) containing FeII or FeIII and M2+ (M=Fe, Co, Cu) in a 1∶1 molar ratio were obtained by the reaction of [Fe(CN)6] n− (n=3,4) with M2+ ion-PVAm · HCl mixture in aqueous solution. Under a limited polymer concentration (TVAm/TFe over 10), these polymer complexes thus obtained were stable and soluble in water. By casting these solutions, colored films can be produced. The formation of Prussian blue and its analogs bonded to PVAm · HCl was also investigated by the Benesi-Hildebrand method. The molar extinction coefficients of intervalence charge transfer (FeII→FeIII, CoII→FeIII, FeII→CuII) band for MFe(CN)6](n−2)− bound to PVAm · HCl (M=Fe, Co, Cu) were found to be 10,100−9601 · mol−1 · cm−1 at 25
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 27 (1989), S. 2531-2537 
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A novel class of urea-formaldehyde condensation resins containing covalently bound metallophthalocyanine [M = A1(III), Co(II), Ni(II), or Cu(II)] was synthesized from [tetrakis(methyl-olamide)phthalocyaninato] metal complexes and dimethylolurea in aqueous solution by heating at 120°C for 10 h, followed by heating at 150°C for about 1 day. The structures of the polymers obtained were characterized by infrared and reflection electronic spectra. The thermal stabilities of the resins were evaluated by dynamic thermogravimetric analyses. The resin containing 21.3 wt % Ni(II)-metallophthalocyanine had the greatest thermal stability, with 82 wt-% char yield at 600°C in air atmosphere.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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