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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 87 (1980), S. 0 
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In five patients with fetal growth retardation in pregnancies with no or only a moderate and transient rise in blood pressure, vascular lesions in the placental bed spiral arteries were found. These lesions are characterized by less well developed physiological morphological changes, by extensive intimal thickening, by fibrinoid degeneration of the media and by acute atherosis. The recurrent fetal growth retardation in these pregnancies may be the first clinical manifestation of underlying reno-vascular disease.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial & engineering chemistry 28 (1936), S. 180-189 
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial & engineering chemistry 28 (1936), S. 1214-1223 
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial & engineering chemistry 29 (1937), S. 1030-1039 
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Biological cybernetics 70 (1994), S. 525-531 
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract The representations of visual hemifields in the extrastriate areas of various species exhibit field discontinuities and islands. We propose that these violations of retinotopy are a developmental consequence of the elongated shape of the respective cortical areas. To substantiate this claim, we investigated a model of activity-driven map formation. In agreement with observations, this model yields maps with field discontinuities if the cortical areas exceed a threshold elongation. Moreover, within the same model island representations in the periphery and the area centralis can also be understood. A multistability of the solutions in the model gives a very simple explanation for the observed interindividual variability of maps in cats. The model leads to a prediction of the radial dependence of the areal magnification factor near field discontinuities, which could be accessible for a high precision mapping experiment.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Biological cybernetics 70 (1994), S. 525-531 
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract. The representations of visual hemifields in the extrastriate areas of various species exhibit field discontinuities and islands. We propose that these violations of retinotopy are a developmental consequence of the elongated shape of the respective cortical areas. To substantiate this claim, we investigated a model of activity-driven map formation. In agreement with observations, this model yields maps with field discontinuities if the cortical areas exceed a threshold elongation. Moreove r, within the same model island representations in the periphery and the area centralis can also be understood. A multistability of the solutions in the model gives a very simple explanation for the observed interindividual variability of maps in cats. The model leads to a prediction of the radial dependence of the areal magnification factor near field discontinuities, which could be accessible for a high precision mapping experiment.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 207 (1969), S. 559-567 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bericht über zwei methodisch unterschiedliche Verfahren der Placentalokalisation mittels der Isotopenmarkierung. In 36 Fällen erfolgte eine Ortung mittels 12 (bis maximal 20) μCi51Cr-Humanserumalbumin durch kollimierte Punktmessungen. Bei 19 Verdachtsfällen auf Placenta praevia war einmal eine Aussage nicht möglich, in 10 Fällen konnte der Verdacht in Übereinstimmung mit dem klinischen Verlauf entkräftet, 6mal ebenso bestätigt werden. In 17 Fällen half das Verfahren bei einer Amniozentese die Placenta zu vermeiden. Die Methode erscheint besonders bei geringerer Untersuchungsfrequenz voll brauchbar. Zur szintigraphischen Darstellung der Placenta fand in bisher 7 Fällen113mIndium-Chlorid in einer Dosierung von 800 μCi Verwendung. Es dürfte sich hierbei um die z.T. aussagefähigste Methode zur Isotopenlokalisation der Placenta handeln. Regelmäßig lassen sich Größe, Form und Lage des Organs durch Szintigraphie in zwei Ebenen unmittelbar sehr gut abgrenzen. Mit zunehmender Erfahrung sind auch Aussagen über morphologische Einzelheiten zu machen.
    Notes: Summary Reported are two methodically different methods for localization of the placenta by means of marking erythrocytes with radioactive isotopes. In 36 cases tracing was carried out with 12 (up to maximal 20) μCi51Cr-human serum albumin by collimated point measure ments. In 19 cases of supected placenta previa one time a conclusive statement could not be made. In 10 cases the suspicion of placenta previa could be dropped in accordance with the clinical course. In 6 cases the suspected placenta previa could be confirmed. In 17 cases the method was helpful in avoiding puncturing of the placenta on amniocentesis. The method appears to be particularly useful for institutions which are confronted with these problems less frequently. For the scintigraphic representation of the placenta113mIndium-chloride was used in a dose of 800 μCi in 7 cases up to the present time. This method presently should be the most conclusive one among methods for localizing the placenta by radiactive isotopes. By obtaining scintigrams out of two planes the size, shape and location of the organ can be determined with regularity and acurately. With increasing experience even conclusions on morphologic details can be drawn.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of consumer policy 4 (1980), S. 93-101 
    ISSN: 1573-0700
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Description / Table of Contents: Zusammenfassung Der Beitrag entfaltet die Kritik an der normativen Basis der gegenwärtigen Verbraucherpolitik in einem kurzen Überblick. Die Verankerung verbraucherpolitischer Ziele, Programmatiken und Handlungsweisen am Marktparadigma wird problematisiert und der Prozeß der Zielbildung bei der programmatischen und pragmatischen Verbraucherpolitik als elitärer Zielfindungsprozeß charakterisiert, dem die Rückbindung an die Interessen der unmittelbar Betroffenen fehlt. Die Kritik an der unzureichenden Diskussion verbraucherpolitischer Zielsetzungen und ihrer Begründung bzw. Rechtfertigung bei der vorherrschenden Verbraucherpolitik wirkt sich notwendigerweise auch auf ihre Versuche zur Instrumentalisierung der genannten Zielsetzungen aus. Da die Ziele weitgehend leerformelhaft und in nicht-operationalisierter Form formuliert sind, bleiben die von verbraucherpolitisch orientierten Wissenschaftlern und Praktikern gemachten Vorschläge zu einer »effizienten« Instrumentalisierung in den Bereichen Verbraucherinformation, Verbraucherschutz und Verbraucherbildung auch meist willkürlich und austauschbar und entziehen sich vor allem einer systematischen Evaluation bezüglich ihrer Wirkungsweise bei der Zielerreichung. Die Ausführungen zur Organisationsproblematik von Verbraucherinteressen zielen vor allem darauf, den Charakter der Verbraucherorganisationen als Formen der Fremdorganisation herauszuarbeiten und auf deren besondere Legitimationsprobleme hinzuweisen. Die vorfindbare Verbraucherpolitik läßt sich grundsätzlich als ex post orientierte Verbraucherpolitik charakterisieren. Am Schluß des Beitrages werden Umrisse einer Umorientierung dieser ex-post-Verbraucherpolitik thematisiert, die prinzipiell dadurch charakterisiert ist, daß sie versucht, verbraucherpolitische Probleme durch rechtzeitige Einflußnahme und Eingriffsmöglichkeiten zu regeln. Ausgewählte Ansatzpunkte für eine solche ex-ante-Orientierung der Verbraucherpolitik werden zur Diskussion gestellt.
    Notes: Abstract The paper begins with a critique of the normative foundations of present public consumer policy. In particular, the lack of an indispensible link between the policy goals and the interests of those concerned is stressed. The authors go on to characterize the available set of policy instruments as being frequently arbitrary, interchangeable, and not suitable for systematic evaluation. The conclusion is reaches that present consumer policy has an ex-post character, and the paper closes with an attempt to formulate the goals of a superseding policy with an ex-ante orientation.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Mycopathologia 39 (1969), S. 337-343 
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Die Wirkung von verschiedenen Kohlenhydratquellen an Zuckerkonzentration und Zusammensetzung des Myzels ofAspergillus niger war untersucht an verschiedenen Tagen der Inkubation. Keine positive Korrelation konnte festgestellt werden unter Trockengewicht, Wachstumsrate, Zuckerkonzentration, Nährboden und Zuckerbildung des Myzels. Glukose war der vorherrschende Zucker in allen Fällen.
    Notes: Abstract The effect of different carbon sources on the sugar concentration and composition of theAspergillus niger mycelium has been studied at different days of incubation. No positive correlation could be drawn among dry weight, growth rate, and concentration of sugar and with substrate and sugar composition of mycelium. Glucose was the predominant sugar in all the cases.
    Type of Medium: Electronic Resource
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