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  • Chemistry  (4)
  • Ascending Pathways  (2)
  • Diagnostic procedures  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Neuronal activity in the lateral vestibular nucleus of the cat (1972)
    Springer
    Pflügers Archiv 337 (1972), S. 135-146 
    Details
    ISSN: 1432-2013
    Keywords: Deiters Neurones ; EPSPs ; Mossy Fibre Collaterals ; Ascending Pathways
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Experiments were carried out on cats, the chloralose anesthesia having been maintained by small doses of Thiopental in about half of the experiments. Intracellular recordings were evaluated from 256 Deiters neurones, which received EPSPs and/or IPSPs upon stimulation of the spinal cord. In respect to excitation, in 70% of these cells, stimulation of the spinal cord at C2-level evoked short latency EPSPs, which showed a bimodal latency distribution. Together with EPSP-latencies observed on stimulation of the lumbar cord the results indicate that a small group of EPSPs is evoked monosynaptically, whilst a major group is mediated via disynaptic linkages of fast conducting fibres. The possibility of a trisynaptic linkage is discussed. Deiters neurones can show rhythmic stimuluslocked discharges, probably based on the organization of synaptic excitation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00587836
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  • 2
    Electronic Resource
    Electronic Resource
    Neuronal activity in the lateral vestibular nucleus of the cat (1972)
    Springer
    Pflügers Archiv 337 (1972), S. 119-134 
    Details
    ISSN: 1432-2013
    Keywords: Deiters Neurones ; Excitation ; Inhibition ; Cerebellum ; Ascending Pathways
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Experiments were carried out on cats anesthetized with chloralose, small doses of Thiopental being added in about half of the animals. Recordings were made from neurones located in Deiters' nucleus. Single shocks applied to the spinal cord evoked membrane potential changes consisting of different types of PSPs. Current analysis revealed: EPSPs, IPSPs, and potential changes due to disinhibition; such components differing in their latencies. Upon stimulation at C2, there were EPSPs with brief (mean 1.7 ms) and longer (mean 5.8 ms) latencies, denoted “EE” and “CE”, respectively. Also, IPSPs showed up with brief (mean 3.6 ms, “MI”) and longer (mean 7.3 ms, “CI”) latencies. Moreover, there was a prolonged inhibition usually turning into a longlasting (up to several hundred milliseconds) disinhibitory depolarization. Of Deiters neurones exhibiting PSPs upon spinal cord stimulation, 66% showed the complete synaptic pattern, 34% short latency or long latency components in isolation. The patterns obtained intracellularly corresponded well to discharge patterns recorded extracellularly. The results were essentially similar in control experiments performed on precollicularly decerebrated cats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00587835
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  • 3
    Electronic Resource
    Electronic Resource
    280. Die multiplen endokrinen Adenomatosen (MEA I- und MEA II-Syndrome) innerhalb der endokrinen Chirurgie (1980)
    Springer
    Langenbeck's archives of surgery 352 (1980), S. 599-599 
    Details
    ISSN: 1435-2451
    Keywords: Multiple endocrine adenomatosis ; Endocrine surgery ; Diagnostic procedures ; Treatment ; Multiple endokrine Adenomatosen ; Endokrine Chirurgie ; Diagnostik ; Behandlung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Vom 1.1.1960 bis 15.4.1980 wurden 3746 Patienten wegen endokriner Erkrankungen (Hyperparathyreoidismusn = 301, Pankreasn = 60, Phäochromocytomn = 34, Nebennierenrinden = 109, Struman = 3242) operiert. Hierunter fanden sich ab 1969 7 Patienten mit MEA I und 3 Patienten mit MEA II. Charakteristica, Diagnostik, Operationsindikation und Therapie der MEA-Syndrome sowie die eigenen Ergebnisse werden dargestellt.
    Notes: Summary From January 1, 1960 — April 15, 1980, 3746 patients were operated on for endocrine diseases (hyperparathyroidismn = 301, pancreasn = 60, pheochromocytoman = 34, adrenal cortexn = 109, goitern = 3242). Among these, 7 patients had the MEA I syndrome and 3 the MEA II syndrome since 1969. Characteristics, diagnostic procedures, indication for operation and treatment of MEA syndromes as well as own results are described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01292245
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  • 4
    Electronic Resource
    Electronic Resource
    Pfropfpolymerisation mit dem Reaktionssystem Cellulose/Methacrylsäurebutylester/Mangan(IV) (1979)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 30 (1979), S. 60-61 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1979.010300113
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  • 5
    Electronic Resource
    Electronic Resource
    Zur Frage der Homopolymerisation bei Pfropfpolymerisationen auf Faserstoffrückgratpolymere nach der Mangan(IV)-Methode (1979)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 30 (1979), S. 135-137 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: With the systems polyamide-acrylamide and polyamide-acrylic acid the extent of concurrent homopolymerization in graft polymerization using manganese (IV) as initiator was investigated.
    Notes: An den Systemen Polyamid/Acrylamid und Polyamid/Acrylsäure wird untersucht, inwieweit die mit jeder Pfropfpolymerisation einhergehende konkurrierende Homopolymerisation bei Verwendung des Mangan (IV)-Initiators eine Rolle spielt.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1979.010300303
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  • 6
    Electronic Resource
    Electronic Resource
    Zur Thermochemie der Halogensilane. IV. Experimentelle Untersuchung des Reaktionsgleichgewichtes SiCl4(g) + Si(f) = 2SiCl2(g) nach der Strömungsmethode (1966)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 347 (1966), S. 145-155 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The equilibrium of the reaction SiCl4(g) + Si(s) ⇄ 2 SiCl2(g) was studied in the temperature range of 950-1300°C with the flowing method in argon atmosphere. For the dependence of the equilibrium constant on temperature the equation lg Kp (Torr) = 13.27 - 16770/T was found. The values resulting for the reaction enthalpy and entropy, the enthalpy of formation and the entropy of SiCl2(g) under standard conditions are given.
    Notes: Das Reaktionsgleichgewicht SiCl4(g) + Si(f) = 2 SiCl2(g) wurde im Temperaturbereich von 950-1300°C nach der Strömungsmethode mit Argon als Trägergas untersucht. Für die Temperaturabhängigkeit der Gleichgewichtskonstante Kp wird die Gleichung \documentclass{article}\pagestyle{empty}\begin{document}$$ \log\, {\rm K}_{\rm p} ({\rm Torr)} = 13,27 - 16770/{\rm T} $$\end{document} angegeben. Für die Reaktionsenthalpie und -entropie, die Bildungsenthalpie und die Normalentropie von SiCl2(g) unter Standardbedingungen werden die ermittelten Werte angegeben.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19663470306
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  • 7
    Electronic Resource
    Electronic Resource
    Zur Thermodynamik des Systems Si—Cl—H (1980)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 460 (1980), S. 65-80 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Thermodynamics of the System Si—Cl—HBy static and dynamic methods the equilibria 4SiHCl3,g = 3SiHCl4,g + Si,s + 2H2,g (1) between 800 and 1140 K and SiCl4,g + H2,g = SiHCl3,g + HCl,g (2) between 1170 and 1450 K were investigated. The expression for the temperature dependence of the equilibria were found to be lg Kp [Torr] = (5.688-1520/T) ± 0.32 (1) and lg Kp = (1.38/3250/T) ± 0.16 (2). The values measured for reaction pressures and equilibrium constants lead to the conclusion, that the difference of enthalpies of formation of SiCl4 and SiHCl3 found in literature is nessecarily to be corrected by 5-6 kcal/mole. With ΔH2980(SiCl4,g) = -157.1 kcal/mole the equilibrium measurements lead to the enthalpy of formation for SiHCl3,g of ΔH2980(SiHCl3,g) = -118.2 kcal/mole.
    Notes: Es wird über die experimentelle Untersuchung des Reaktionsgleichgewichtes 4SiHCl3,g = 3SiCl4,g + Si,f + 2H2,g(1) zwischen 800 und 1140 und SiCl4,g + H2,g = SiHCl3,g + HCl,g (2) zwischen 1170 und 1540 K nach der statischen und dynamischen Methode berichtet. Die Temperaturabhängigkeit der Gleichgewichtskonstanten wird durch die Gleichungen lg Kp [Torr] = (5,688-1520/T) ± 0.32(1) und lg Kp = (1,38-3250/T) ± 0,16(2) wiedergegeben Aus den ermittelten Reaktionsdrücken und Gleichgewichtskonstanten folgt, daß die aus den calorimetrischen Literaturwerten abgeleitete Differenz der Standardbildungsenthalpien von SiCl4 und SiHCl3 um 5-6 kcal/mol korrekturbedürftig ist. Die Gleichgewichtsmessungen ergeben mit ΔH2980(SiCl4,g) = -157,1 kcal/mol für SiHCl3ΔH2980(SiCl3,g) =-118.2 ± 0.5 kcal/mol.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19804600107
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