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  • 1
    Electronic Resource
    Electronic Resource
    Multilocular giant epidermal cyst (2004)
    Oxford, UK : Blackwell Science Ltd
    British journal of dermatology 151 (2004), S. 0 
    Details
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2133.2004.06227.x
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  • 2
    Electronic Resource
    Electronic Resource
    Scleroderma renal crisis with limited cutaneous sclerosis and positive anti-RNA polymerase antibody (2000)
    Springer
    Clinical and experimental nephrology 4 (2000), S. 152-155 
    Details
    ISSN: 1437-7799
    Keywords: Key words Progressive systemic sclerosis ; Scleroderma renal crisis ; Anti-RNA polymerase antibody
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 59-year old Japanese woman diagnosed as having systemic sclerosis with limited cutaneous involvement was hospitalized with scleroderma renal crisis. Malignant hypertension with marked hyperreninemia and grade three hypertensive retinopathy were present, and the renal biopsy showed marked intimal thickening of the small intrarenal arteries. The patient's serum was negative for anticentromere and anti-DNA topoisomerase I (Scl-70) antibodies, whereas a radioimmunoprecipitation study revealed the presence of antibody to RNA polymerases I, II, and III. The patient was successfully treated with captopril, with normalization of blood pressure and reversal of the decreased renal function. The presence of antibody to RNA polymerases may be a marker for the development of life-threatening scleroderma renal crisis even in patients with limited cutaneous systemic sclerosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00012168
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  • 3
    Electronic Resource
    Electronic Resource
    Kinetic analysis of derivative curves in thermal analysis (1970)
    Springer
    Journal of thermal analysis and calorimetry 2 (1970), S. 301-324 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Résumé On propose deux méthodes pour déduire les paramètres cinétiques des thermogrammes dérivés. Elles reposent sur des formules cinétiques générales applicables aux réactions correspondant à une seule valeur d'énergie d'activation. L'une de ces méthodes utilise la relation linéaire entre la température du pic et la vitesse de chauffage pour estimer la valeur de l'énergie d'activation; seule la vitesse de conversion en fonction de la température nécessite d'être connue. L'autre méthode demande de connaître à la fois le taux et la vitesse de conversion en fonction de la température, et l'on effectue le tracé de l'équation d'Arrhénius pour le mécanisme cinétique supposé.
    Abstract: Zusammenfassung Zwei neue Methoden zur Ermittlung von kinetischen Parametern wurden auf Grund von derivierten Kurven vorgeschlagen. Die Verfahren benutzen allgemeine kinetische Formeln, die anwendbar sind für alle Reaktionstypen, welche von einer einzigen Aktivierungsenergie beherrscht sind. Die eine Methode bedient sich der linearen Beziehung zwischen Spitzentemperaturen und Aufheizraten zur Errechnung der Aktivierungsenergie, allein in Kenntnis der Umwandlungsgeschwindigkeit als Funktion der Zeit. Die andere Methode benötigt die Kenntnis des Umwandlungsgrades und der Umwandlungsgeschwindigkeit als Funktion der Temperatur und ermittelt die Arrhenius'sche Gleichung für den vorausgesetzten kinetischen Mechanismus.
    Notes: Abstract Two methods of obtaining kinetic parameters from derivative thermoanalytical curves are proposed. The methods are based on the general form of kinetic formulae and are applicable to general types of reactions governed by a single activation energy. One method utilizes the linear relation between peak temperature and heating rate in order to estimate the activation energy, and only the information of the rate of conversion versus the temperature is necessary. The other method needs the information of both the conversion and the rate of conversion versus the temperature, and the Arrhenius plot is made for an assumed kinetic mechanism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01911411
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  • 4
    Electronic Resource
    Electronic Resource
    General Theory of Steady State of tm-DSC and its Application to Complex Heat Capacity Measurements (2000)
    Springer
    Journal of thermal analysis and calorimetry 59 (2000), S. 257-270 
    Details
    ISSN: 1572-8943
    Keywords: complex heat capacity measurement ; heat flux DSC ; photo-modulated DSC ; power compensation DSC ; steady state ; temperature modulated DSC
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract For complex heat capacity measurements, steady state of various types of temperature modulated DSC is theoretically investigated by a set of common comprehensive fundamental equations of heat balance. Heat capacities of heat paths, heat loss to the environment and mutual heat exchange between the sample and the reference material are taken into accounts together with thermal contact effect between the cell and its holder plate. Rigorous and general solutions have been obtained, and useful relations for complex heat capacity measurements have been derived for each type of DSC. They are compared with each other to elucidate unique features of each type of DSC.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010104516684
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  • 5
    Electronic Resource
    Electronic Resource
    Controlled Rate Thermogravimetry: New usefulness of controlled rate thermogravimetry revealed by decomposition of polyimide (2000)
    Springer
    Journal of thermal analysis and calorimetry 59 (2000), S. 375-384 
    Details
    ISSN: 1572-8943
    Keywords: CRTG ; Friedman–Ozawa method ; isothermal-TG ; kinetic analysis ; polyimide ; TG ; thermal decomposition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Curves obtained by controlled rate TG of polyimide film in air are quite different from those obtained by conventional constant rate heating TG. A two step mass loss was observed during the constant rate heating TG, while mass loss proceeded as a single step process in the controlled rate TG. To elucidate the cause for this difference, kinetic analysis was made, and it was found that the reaction mechanism in a lower temperature range is different from those in a higher temperature range. The lower temperature decomposition is a single step process, and the higher temperature decomposition is a two-step process. The reason for the difference is that only the low temperature single step process is observed in the controlled rate TG, while both reactions are observed in the constant heating rate TG along with the temperature increase. This speculation was confirmed by isothermal TG. These facts show us another usefulness of controlled rate TG. To analyze the three types of TG data together, the Friedman—Ozawa method was used, and it is demonstrated to be the most appropriate and reliable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010125121227
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  • 6
    Electronic Resource
    Electronic Resource
    Non-isothermal Kinetics of Consecutive Reactions (2000)
    Springer
    Journal of thermal analysis and calorimetry 60 (2000), S. 887-894 
    Details
    ISSN: 1572-8943
    Keywords: consecutive reactions ; EGA ; evolved gas analysis ; FTIR ; non-isothermal kinetics ; thermophotometry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Theoretical consideration has been made of the non-isothermal kinetics of consecutive reactions based on the superposition principle. In the model the first reaction product reacts to form the final product and the two reactions proceed independently. The amount of the first reaction product and the production rate of the final product have been obtained as a function of time for isothermal cases and as a function of the reduced times for non-isothermal cases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010111825431
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  • 7
    Electronic Resource
    Electronic Resource
    The peak of the derivative thermoanalytical curve of diffusion (1974)
    Springer
    Journal of thermal analysis and calorimetry 6 (1974), S. 401-403 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The conversion, the reduced rate of conversion dC/dΘ andΘ at the peak of derivative thermoanalytical curve of diffusion are estimated theoretically, solving the theoretical equation with an electronic digital computer. These values for chemical reactions including random degradation of polymers are also estimated and compared with those of diffusion. The conversion at the peak is utilized to elucidate preliminarily the mechanism of the process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01950071
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  • 8
    Electronic Resource
    Electronic Resource
    Non-isothermal kinetics of diffusion and its application to thermal analysis (1973)
    Springer
    Journal of thermal analysis and calorimetry 5 (1973), S. 563-576 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Résumé On étudie la cinétique de diffusion en régime non isotherme, en étendant l'équation fondamentale de la diffusion aux cas non isothermes et l'on donne la solution de l'équation pour quelques cas typiques. A partir de ces considérations théoriques, on propose deux méthodes pour analyser les données thermoanalytiques de la diffusion. On applique l'une d'elles aux courbes AGE de stabilisation du toluène à partir des résines époxy traitées à l'éthylène diamine. Les constantes de diffusion obtenues en fonction de la température pour plusieurs vitesses d'échauffement sur deux échantillons en forme de plaquette sont en bon accord, de même que pour des échantillons pulvérulents.
    Abstract: Zusammenfassung Die nicht-isotherme Kinetik der Diffusion wird abgeleitet, indem die Grundgleichung der Diffusion auf nicht-isotherme Fälle erweitert und für einige typische Fälle gelöst wird. Von diesen theoretischen Erwägungen ausgehend werden zwei Methoden zur Analyse thermoanalytischer Diffusionsangaben vorgeschlagen. Eine der Methoden wird für die EGA-Kurven der Verflüchtigung von Toluol aus mit Ethyländiamin behandeltem Epoxyharz angewandt. Die an zwei Platten-Arten verschiedener Dicke bei verschiedenen Aufheizgeschwindigkeiten als Funktion der Temperatur erhaltenen Diffusionskonstanten stimmen gut überein. Die an einer pulverförmigen Probe beobachtete Temperaturabhängigkeit der Diffusionskonstante ist ebenfalls in guter Übereinstimmung mit der an den zwei Plattenkörpern erhaltenen.
    Notes: Abstract Non-isothermal kinetics of diffusion are derived, extending the fundamental equation of diffusion to non-isothermal conditions, and the equation is solved for a few typical cases. From these theoretical considerations, two methods of analyzing thermoanalytical data of diffusion are proposed. One of the methods is applied to EGA curves of the volatilization of toluene from epoxy resin cured with ethylenediamine. The diffusion constants obtained as a function of temperature for two plate-specimens of different thicknesses at various heating rates are in good agreement with each other. The temperature dependence of the diffusion constant observed for a powdered sample is also in good agreement with those observed for the two plate-specimens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01904085
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  • 9
    Electronic Resource
    Electronic Resource
    On the method of coats and redfern for the kinetic analysis of thermoanalytical data (1973)
    Springer
    Journal of thermal analysis and calorimetry 5 (1973), S. 499-500 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01950239
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  • 10
    Electronic Resource
    Electronic Resource
    Correlation of potential and fiber type in extraocular muscle (1969)
    Springer
    Documenta ophthalmologica 26 (1969), S. 192-201 
    Details
    ISSN: 1573-2622
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Sur le muscle droit supérieur du lapin anesthésié on a enregistré simultanément des potentiels EMG et des potentiels intracellulaires lents prenant naissance dans des foyers cellulaires multiples. Quelques enregistrements ont montré l'apparition synchrone de potentiels EMG et de potentiels intracellulaires lents ‘multi-foyers’; dans tous ces cas les potentiels EMG étaient essentiellement monophasiques et d'une durée supérieure à 4 msec, présentant ainsi des caractéristiques différentes de celles d'un potentiel de pointe propagé. Il a pu être vérifié que les fibres musculaires qui donnent naissance aux potentiels intracellulaires lents multifoyers, sont des fibres à innervation multiple. L'étude des potentiels lents chez l'homme pourrait être intéressante.
    Abstract: Zusammenfassung Im Rectus superior des Kaninchens wurden in Narkose gleichzeitig EMG Potentiale und spontane langsame, intracelluläre multifokale Potentiale registriert. Die EMG Potentiale, die mit den intracellulären Potentialen synchron auftreten, sind hauptsächlich monophasisch, sie dauern wenigstens 4 msec und unterscheiden sich deutlich von den ‘Spike’-Potentialen. Es hat sich bestätigt, daß die Fasern, welche solche spontanen, intracellulären, multifokalen langsamen Potentiale hervorrufen, tatsächlich eine mehrfache Innervation besitzen. Es wäre interessant, auch beim Menschen diese langsamen Potentiale zu untersuchen.
    Notes: Summary EMG potentials were recorded simultaneously with spontaneous intracellular multifocus slow potentials in the rabbit superior rectus under general anesthesia. Those EMG potentials which were synchronous with such intracellular potentials, are essentially monophasic and at least 4 msec in duration, clearly different from spike potentials. It was verified, that the fibers which produce such spontaneous intracellular multifocus slow potentials are indeed multiply innervated. The study of such slow potential activity in human extraocular muscles may be profitable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00943976
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