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  • 1
    Electronic Resource
    Electronic Resource
    Verschiedenes (1979)
    Springer
    Archives of gynecology and obstetrics 228 (1979), S. 542-558 
    Details
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02427523
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Die Struktur der Decidua im Nebenhorn bei Schwangerschaft mit Uterus bicornis (1979)
    Springer
    Archives of gynecology and obstetrics 227 (1979), S. 39-45 
    Details
    ISSN: 1432-0711
    Keywords: Decidua ; Uterus bicornis ; Decidua ; Uterus bicornis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die schlaff herunterhängende Decidua im Nebenhorn eines Uterus bicornis unterscheidet sich nicht grundsätzlich von einer Decidua in dem die Frucht tragenden Uterushorn. Die Struktur zeigt die Rückbildung des Drüsenepithels bis zur endothelartigen Auskleidung als einen hormonalen Vorgang im Sinne einer Drüsen-Stroma-Diskordanz. Mechanische Faktoren durch die Fruchtausdehnung spielen hier sicher keine wesentliche Rolle. Degenerationserscheinungen wie fokale Nekrosen, sklerosiertes Ödem, Thrombosierung und entzündliche Infiltrationen kommen im Nebenhorn wahrscheinlich vermehrt vor. Sie können mit ausgeprägteren lokalen Ernährungsstörungen und mit der geringeren Abdichtung des Cavums nach unten erklärt werden.
    Notes: Summary The loosely attached decidual mucosa in the accessory horn of an uterus bicornis does not principally differ from the mucosa in the horn containing the fetus. Structural studies show that the regression of decidual endometrium to a endothelium-like lining is a hormone-dependent process such as stromagland dissociation. Mechanical factors due to expansion of the fetus certainly play no major role. Degenerative phenomena, such as focal necrosis, sclerosing edema, thrombosis, and inflammatory infiltrates probably appear more frequently in the accessory horn. They may be explained by more pronounced regional disturbances concerning perfusion and the inferior sealing of the uterine cavity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02108626
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  • 3
    Electronic Resource
    Electronic Resource
    Two particle rapidity correlation in proton-emulsion nucleus interactions at 400 GeV (1979)
    Springer
    The European physical journal 2 (1979), S. 291-294 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present a study of two-particle correlations in proton-emulsion nucleus reactions at 400 GeV. In particular the correlations at different nuclear excitations and different rapidity regions are treated. Positive correlations, depending on nuclear excitation, are observed in the rapidity region η〈1.5.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01545888
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  • 4
    Electronic Resource
    Electronic Resource
    Transverse NMR relaxation of water in wood (1979)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 23 (1979), S. 3147-3154 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The transverse NMR relaxation times of hydrogen nuclei of water absorbed in white spruce sapwood [Picea glauca (Meunch) Voss] were measured for moisture contents in the range from 5 to 176%. The spin echo amplitudes resulting from the Carr-Purcell sequence decay nonexponentially suggesting the possibility of at least two different relaxation times for water in wood. A simplified structural model of the wood-water mixture is used to estimate the rates of chemical exchange at room temperature of hydrogen nuclei between various sites in the system. The high-resolution NMR line shape is discussed briefly in terms of this proposed model.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1979.070231101
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  • 5
    Electronic Resource
    Electronic Resource
    Vergleich von HPLC mit HPTLC unter dem Aspekt der Automatisierung (1979)
    Springer
    Chromatographia 12 (1979), S. 338-344 
    Details
    ISSN: 1612-1112
    Keywords: High-performance liquid column chromatography ; High-performance thin-layer chromatography ; Comparison for automation ; Optimization ; Concept to measure qualification of the techniques
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Ohne vorherige Optimierung darf eine analytische Methode nicht automatisiert werden. Ein theoretisches und praktisches Konzept, nach welchem HPLC bezüglich Trennleistung und Trennvermögen optimiert werden kann, wird gegeben. Es zeigt, daß klassische Kennzahlen wie die Zahl theoretischer Trennstufen oder Bodenhöhenwerte außerstande sind, den tatsächlichen Leistungsstand einer chromatographischen Methode sachgerecht zu beurteilen. Das “abt-Konzept” hingegen beschreibt Stand und Trend bei der Optimierung perfekt. Hochleistungs-Dünnschicht-Chromatographie wird man wegen ihrer so schon extremen Probenkapazität—im schnellsten Falle derzeit 24 Proben in 30 Sekunden getrennt-nicht vollautomatisieren können. Dennoch werden beide Methoden bezüglich Automatisierung verglichen.
    Notes: Summary Automation of an analytical technique can be accepted only when the whole procedure can be optimized. Examples amples are given how to optimize HPLC, and how misleading the classical data of theoretical plate height or plate numbers are. It is shown, how well the “abt concept” helps to optimize HPLC and to understand the results. HPTLC is too powerful for full automation due to its large sample throughput at an analytical separation speed of 24 samples in 30 seconds. HPLC and HPTLC are compared with respect to full or partial automation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02259150
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  • 6
    Electronic Resource
    Electronic Resource
    Polarity change in capillary GC by serial-column temperature optimization (SECAT mode in capillary GC) (1979)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 2 (1979), S. 416-422 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Capillary, glass ; SECAT-technique=stepless fine tuning of capillary selectivity by serial column temperature optimization ; Exponential influence of temperature on selectivity over a wide range found ; SECAT-technique ready for automation of column adjustment on sample composition polarity ; Instrumental and methodological details for primitive self made solution given ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: GC, including capillary GC, is rather inflexible, if a certain column length and stationary phase has been fixed for a given analytical problem. If the sample composition changes, one often has to change the column length and/or stationary phase, at least when something like optimum analytical conditions are needed. Temperature changes (or heating rates) can change the selectivity of a given column only within very limited ranges, due to the exponential effect of temperature on retention time. By serial coupling two chemically different capillaries, each run at another temperature, even the slightest changes of these two temperature values have a dramatic effect on the selectivity of the system for polar substances. We call this technique the SECAT mode of GC. Results are reported as retention index shifts, dependent on SECAT temperature data. This technique can in future easily be automated, thus enabling the analyst, for polar sample analysis, to adjust a given chroma-tographic system to his specific sample composition without touching the instrument.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240020709
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  • 7
    Electronic Resource
    Electronic Resource
    Pre-columns in gas chromatography (1979)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 2 (1979), S. 95-100 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240020217
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  • 8
    Electronic Resource
    Electronic Resource
    Systematically wrong evaluation of columns, packings, instrument-data in chromatography? (1979)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 2 (1979), S. 91-92 
    Details
    ISSN: 0935-6304
    Keywords: Data evaluation, peak width measurements in GC, LC, TLC ; Peaks are in principle non symmetric, non Gaussian shaped ; Standard deviation and variance cannot be measured directly as usual ; Systematic error easily larger than 50% ; Calculation of correct standard deviation/variance presented ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240020215
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  • 9
    Electronic Resource
    Electronic Resource
    ABT Concept. Measuring, checking, and optimizing separation capability and column utilization in GC and HPLC (1979)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 2 (1979), S. 679-686 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240021111
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  • 10
    Electronic Resource
    Electronic Resource
    Editorial (1979)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 2 (1979), S. 4-4 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240020102
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    Paper (German National Licenses)
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