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  • 1
    Electronic Resource
    Electronic Resource
    Spin glass in Fe-Ni Invar alloys (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 3456-3458 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Initial ac susceptibility χ was examined in the temperature range from 4.2 K to Curie temperatures for polycrystalline Fe100−xNix (20≤x≤50) alloys. The reentrant spin glass is found in x=30–45 alloys. The dependence of the freezing temperature Tg on the intensity of driving magnetic field (ac: 0–0.26 Oe; dc: 0–10 Oe) and on the frequency (140–9200 Hz) was studied for the Fe65Ni35 alloy. A strong magnetic relaxation is observed below Tg. These results are discussed based on the cluster model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.335075
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Interaction of 5-fluorouracil with sodium poly-α,L-glutamate (1985)
    Springer
    Colloid & polymer science 263 (1985), S. 682-685 
    Details
    ISSN: 1435-1536
    Keywords: 5-trifluorouracial ; sodium poly-α ; L-glutamate ; interaction ; viscosity ; 5-trifluoromethyluracil
    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 purpose of our research is to obtain an understanding of the binding mechanism and its correlations in terms of chemical structure and the potentiactive drug activity. The interaction of 5-fluorouracil (5-fluorouracil is used as an anticancer drug) with sodium poly-α,L-glutamate in aqueous solution was studied with a spectral method and viscosity measurement. From the binding data, the molar change in enthalpy, entropy and the number of binding sites on the polymer were calculated. It is very interesting that the value ofΔH0 of the binding of 5-fluorouracil with sodium poly-α,L-glutamate is smaller than that of 5-trifluoromethyluracil (although 5-trifluoromethyluracil is not used as an anticancer drug, the compound has a similar structure to 5-fluorouracil).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01419893
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Calpain activates two transglutaminases from porcine skin (1988)
    Springer
    Archives of dermatological research 280 (1988), S. 380-384 
    Details
    ISSN: 1432-069X
    Keywords: Calpain ; Transglutaminase ; Thrombin ; Dimethyl sulfoxide ; Heating
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two transglutaminases (TGase) with estimated molecular weight of 55,000 (55-K TGase) and 120,000 (120-K TGase) were partially purified from the cytosolic fraction of porcine skin (epidermis-rich preparation) using DEAE-cellulose and gel-filtration chromatographies. The enzyme activities of both trans-glutaminases were enhanced more than 20-fold by treatment with calpain (Ca2+-dependent cysteine proteinase) in the presence of Ca2+, and this enhancement was inhibited by adding EDTA, leupeptin, or an endogenous calpain-specific inhibitor protein (calpastatin). 55-K TGase was effectively activated by a smaller amount of calpain than was 120-K TGase, while known activating reagents such as thrombin and dimethyl sulfoxide or heat treatment preferentially activated 120-K TGase. One of the physiological functions of calpain in the epidermis may be the activation of epidermal transglutaminases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00426618
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  • 4
    Electronic Resource
    Electronic Resource
    Comparison of brain imaging and neuropathology in cases of trisomy 18 and 13 (1987)
    Springer
    Neuroradiology 29 (1987), S. 474-479 
    Details
    ISSN: 1432-1920
    Keywords: Trisomy 18 ; Trisomy 13 ; Brain imaging ; Neuropathology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A comparative study of intracranial imaging and brain pathology in cases of trisomy 18 and 13 was performed. Computed tomography (CT) and ultrasonography (US) revealed disproportional dilatation of the lateral ventricles, a wide Sylvian fissure and a large extracerebellar space with a small cerebellum in each case. In addition, it was characteristic that the occipital poles of the cerebrum protruded in the infero-posterior direction in trisomy 18, and the pontine basis was relatively wide in trisomy 13. The brain pathology in trisomy 18 and 13 demonstrated that the large extracerebellar space is due to the cerebellar dysplasia and protruding occipital poles, the wide Sylvian fissures due to the temporal lobes or external capsular dysplasia, and the relatively wide pontine basis due to meningeal glioneuronal heterotopia. Thus, the characteristic intracranial image in trisomy 18 and 13 suggest microdysgenesis of the brain and might be useful for understanding the pathological structure of the central nervous system in these conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00341747
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  • 5
    Electronic Resource
    Electronic Resource
    Changes in the lateral ventricle with the head position: Ultrasonographic observation (1988)
    Springer
    Neuroradiology 30 (1988), S. 315-318 
    Details
    ISSN: 1432-1920
    Keywords: Ultrasonography ; Ventricular asymmetry ; Neonate ; Premature infant
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Ultrasonographic examination was performed in 13 preterm, 10 normal term and 3 term brain-damaged infants to evaluate changes of the ventricular width with the head position. The lower side of the frontal horn was narrowed and the upper side dilated in all preterm and brain-damaged infants. These changes of the ventricular width may be due to gravity and soft brain. Therefore, it is very important to consider the transformation of the lateral ventricles with the head position when asymmetry of the lateral ventricle is identified in infants showing prematurity or brain damage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00328182
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    Paper (German National Licenses)
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